From 9dca7fd534a0b57c60555e9c1948523fbc8c40c9 Mon Sep 17 00:00:00 2001 From: rubennorte Date: Thu, 23 Mar 2023 18:42:46 +0000 Subject: [PATCH] Remove ReactFabricPublicInstance and used definition from ReactNativePrivateInterface (#26437) ## Summary Now that React Native owns the definition for public instances in Fabric and ReactNativePrivateInterface provides the methods to create instances and access private fields (see https://github.com/facebook/react-native/pull/36570), we can remove the definitions from React. After this PR, React Native public instances will be opaque types for React and it will only handle their creation but not their definition. This will make RN similar to DOM in how public instances are handled. This is a new version of #26418 which was closed without merging. ## How did you test this change? * Existing tests. * Manually synced the changes in this PR to React Native and tested it end to end in Meta's infra. DiffTrain build for commit https://github.com/facebook/react/commit/9c54b29b44d24f8f8090da9c7ebf569747a444df. --- .../cjs/ReactTestRenderer-dev.js | 2 +- .../cjs/ReactTestRenderer-prod.js | 4 +- .../cjs/ReactTestRenderer-profiling.js | 4 +- .../RKJSModules/vendor/react/cjs/React-dev.js | 2 +- .../vendor/react/cjs/React-prod.js | 2 +- .../vendor/react/cjs/React-profiling.js | 2 +- .../Libraries/Renderer/REVISION | 2 +- .../implementations/ReactFabric-dev.fb.js | 38927 ++++++++-------- .../implementations/ReactFabric-prod.fb.js | 1295 +- .../ReactFabric-profiling.fb.js | 1403 +- .../ReactNativeRenderer-dev.fb.js | 46 +- .../ReactNativeRenderer-prod.fb.js | 92 +- .../ReactNativeRenderer-profiling.fb.js | 78 +- 13 files changed, 20783 insertions(+), 21076 deletions(-) diff --git a/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-dev.js b/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-dev.js index 69fc6d9876c44..7cb0d2b61767b 100644 --- a/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-dev.js +++ b/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-dev.js @@ -23649,7 +23649,7 @@ function createFiberRoot( return root; } -var ReactVersion = "18.3.0-next-f77099b6f-20230322"; +var ReactVersion = "18.3.0-next-9c54b29b4-20230322"; // Might add PROFILE later. diff --git a/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-prod.js b/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-prod.js index 7da629e475833..2464085e976d7 100644 --- a/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-prod.js +++ b/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-prod.js @@ -8570,7 +8570,7 @@ var devToolsConfig$jscomp$inline_1029 = { throw Error("TestRenderer does not support findFiberByHostInstance()"); }, bundleType: 0, - version: "18.3.0-next-f77099b6f-20230322", + version: "18.3.0-next-9c54b29b4-20230322", rendererPackageName: "react-test-renderer" }; var internals$jscomp$inline_1217 = { @@ -8601,7 +8601,7 @@ var internals$jscomp$inline_1217 = { scheduleRoot: null, setRefreshHandler: null, getCurrentFiber: null, - reconcilerVersion: "18.3.0-next-f77099b6f-20230322" + reconcilerVersion: "18.3.0-next-9c54b29b4-20230322" }; if ("undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__) { var hook$jscomp$inline_1218 = __REACT_DEVTOOLS_GLOBAL_HOOK__; diff --git a/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-profiling.js b/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-profiling.js index 88a12d88aabd2..cf918323d4d9b 100644 --- a/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-profiling.js +++ b/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-profiling.js @@ -8995,7 +8995,7 @@ var devToolsConfig$jscomp$inline_1072 = { throw Error("TestRenderer does not support findFiberByHostInstance()"); }, bundleType: 0, - version: "18.3.0-next-f77099b6f-20230322", + version: "18.3.0-next-9c54b29b4-20230322", rendererPackageName: "react-test-renderer" }; var internals$jscomp$inline_1258 = { @@ -9026,7 +9026,7 @@ var internals$jscomp$inline_1258 = { scheduleRoot: null, setRefreshHandler: null, getCurrentFiber: null, - reconcilerVersion: "18.3.0-next-f77099b6f-20230322" + reconcilerVersion: "18.3.0-next-9c54b29b4-20230322" }; if ("undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__) { var hook$jscomp$inline_1259 = __REACT_DEVTOOLS_GLOBAL_HOOK__; diff --git a/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-dev.js b/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-dev.js index da22b7721b9d5..ad4c62d8324a2 100644 --- a/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-dev.js +++ b/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-dev.js @@ -27,7 +27,7 @@ if ( } "use strict"; -var ReactVersion = "18.3.0-next-f77099b6f-20230322"; +var ReactVersion = "18.3.0-next-9c54b29b4-20230322"; // ATTENTION // When adding new symbols to this file, diff --git a/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-prod.js b/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-prod.js index 695a9b460ea91..64f17108760d3 100644 --- a/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-prod.js +++ b/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-prod.js @@ -639,4 +639,4 @@ exports.useSyncExternalStore = function ( ); }; exports.useTransition = useTransition; -exports.version = "18.3.0-next-f77099b6f-20230322"; +exports.version = "18.3.0-next-9c54b29b4-20230322"; diff --git a/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-profiling.js b/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-profiling.js index b39b22b2f48c7..b7524c2621f68 100644 --- a/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-profiling.js +++ b/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-profiling.js @@ -642,7 +642,7 @@ exports.useSyncExternalStore = function ( ); }; exports.useTransition = useTransition; -exports.version = "18.3.0-next-f77099b6f-20230322"; +exports.version = "18.3.0-next-9c54b29b4-20230322"; /* global __REACT_DEVTOOLS_GLOBAL_HOOK__ */ if ( diff --git a/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/REVISION b/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/REVISION index b0bbc865ab0da..51ceb6c7135e3 100644 --- a/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/REVISION +++ b/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/REVISION @@ -1 +1 @@ -f77099b6f1ccc658eff3467c6b9337e1b77ec854 +9c54b29b44d24f8f8090da9c7ebf569747a444df diff --git a/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-dev.fb.js b/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-dev.fb.js index c9156cb66330b..9ba6f6825bb47 100644 --- a/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-dev.fb.js +++ b/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-dev.fb.js @@ -3003,308 +3003,205 @@ function diff(prevProps, nextProps, validAttributes) { ); } -function warnForStyleProps(props, validAttributes) { - { - for (var key in validAttributes.style) { - if (!(validAttributes[key] || props[key] === undefined)) { - error( - "You are setting the style `{ %s" + - ": ... }` as a prop. You " + - "should nest it in a style object. " + - "E.g. `{ style: { %s" + - ": ... } }`", - key, - key - ); - } - } - } -} - -/** - * `ReactInstanceMap` maintains a mapping from a public facing stateful - * instance (key) and the internal representation (value). This allows public - * methods to accept the user facing instance as an argument and map them back - * to internal methods. - * - * Note that this module is currently shared and assumed to be stateless. - * If this becomes an actual Map, that will break. - */ -function get(key) { - return key._reactInternals; -} -function set(key, value) { - key._reactInternals = value; -} - -// NOTE: There are no flags, currently. Uncomment the stuff below if we add one. -// the exports object every time a flag is read. - -var enableUseRefAccessWarning = dynamicFlags.enableUseRefAccessWarning; // The rest of the flags are static for better dead code elimination. -var enableSchedulingProfiler = true; -var enableProfilerTimer = true; -var enableProfilerCommitHooks = true; -var enableProfilerNestedUpdatePhase = true; -var createRootStrictEffectsByDefault = false; -var enableLazyContextPropagation = false; +// Used as a way to call batchedUpdates when we don't have a reference to +// the renderer. Such as when we're dispatching events or if third party +// libraries need to call batchedUpdates. Eventually, this API will go away when +// everything is batched by default. We'll then have a similar API to opt-out of +// scheduled work and instead do synchronous work. +// Defaults +var batchedUpdatesImpl = function (fn, bookkeeping) { + return fn(bookkeeping); +}; -// ATTENTION -// When adding new symbols to this file, -// Please consider also adding to 'react-devtools-shared/src/backend/ReactSymbols' -// The Symbol used to tag the ReactElement-like types. -var REACT_ELEMENT_TYPE = Symbol.for("react.element"); -var REACT_PORTAL_TYPE = Symbol.for("react.portal"); -var REACT_FRAGMENT_TYPE = Symbol.for("react.fragment"); -var REACT_STRICT_MODE_TYPE = Symbol.for("react.strict_mode"); -var REACT_PROFILER_TYPE = Symbol.for("react.profiler"); -var REACT_PROVIDER_TYPE = Symbol.for("react.provider"); -var REACT_CONTEXT_TYPE = Symbol.for("react.context"); -var REACT_SERVER_CONTEXT_TYPE = Symbol.for("react.server_context"); -var REACT_FORWARD_REF_TYPE = Symbol.for("react.forward_ref"); -var REACT_SUSPENSE_TYPE = Symbol.for("react.suspense"); -var REACT_SUSPENSE_LIST_TYPE = Symbol.for("react.suspense_list"); -var REACT_MEMO_TYPE = Symbol.for("react.memo"); -var REACT_LAZY_TYPE = Symbol.for("react.lazy"); -var REACT_SCOPE_TYPE = Symbol.for("react.scope"); -var REACT_DEBUG_TRACING_MODE_TYPE = Symbol.for("react.debug_trace_mode"); -var REACT_OFFSCREEN_TYPE = Symbol.for("react.offscreen"); -var REACT_LEGACY_HIDDEN_TYPE = Symbol.for("react.legacy_hidden"); -var REACT_CACHE_TYPE = Symbol.for("react.cache"); -var REACT_TRACING_MARKER_TYPE = Symbol.for("react.tracing_marker"); -var REACT_SERVER_CONTEXT_DEFAULT_VALUE_NOT_LOADED = Symbol.for( - "react.default_value" -); -var REACT_MEMO_CACHE_SENTINEL = Symbol.for("react.memo_cache_sentinel"); -var MAYBE_ITERATOR_SYMBOL = Symbol.iterator; -var FAUX_ITERATOR_SYMBOL = "@@iterator"; -function getIteratorFn(maybeIterable) { - if (maybeIterable === null || typeof maybeIterable !== "object") { - return null; +var isInsideEventHandler = false; +function batchedUpdates$1(fn, bookkeeping) { + if (isInsideEventHandler) { + // If we are currently inside another batch, we need to wait until it + // fully completes before restoring state. + return fn(bookkeeping); } - var maybeIterator = - (MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL]) || - maybeIterable[FAUX_ITERATOR_SYMBOL]; + isInsideEventHandler = true; - if (typeof maybeIterator === "function") { - return maybeIterator; + try { + return batchedUpdatesImpl(fn, bookkeeping); + } finally { + isInsideEventHandler = false; } - - return null; +} +function setBatchingImplementation(_batchedUpdatesImpl, _discreteUpdatesImpl) { + batchedUpdatesImpl = _batchedUpdatesImpl; } -function getWrappedName$1(outerType, innerType, wrapperName) { - var displayName = outerType.displayName; - - if (displayName) { - return displayName; - } - - var functionName = innerType.displayName || innerType.name || ""; - return functionName !== "" - ? wrapperName + "(" + functionName + ")" - : wrapperName; -} // Keep in sync with react-reconciler/getComponentNameFromFiber +/** + * Internal queue of events that have accumulated their dispatches and are + * waiting to have their dispatches executed. + */ -function getContextName$1(type) { - return type.displayName || "Context"; -} // Note that the reconciler package should generally prefer to use getComponentNameFromFiber() instead. +var eventQueue = null; +/** + * Dispatches an event and releases it back into the pool, unless persistent. + * + * @param {?object} event Synthetic event to be dispatched. + * @private + */ -function getComponentNameFromType(type) { - if (type == null) { - // Host root, text node or just invalid type. - return null; - } +function executeDispatchesAndRelease(event) { + if (event) { + executeDispatchesInOrder(event); - { - if (typeof type.tag === "number") { - error( - "Received an unexpected object in getComponentNameFromType(). " + - "This is likely a bug in React. Please file an issue." - ); + if (!event.isPersistent()) { + event.constructor.release(event); } } +} // $FlowFixMe[missing-local-annot] - if (typeof type === "function") { - return type.displayName || type.name || null; - } - - if (typeof type === "string") { - return type; - } - - switch (type) { - case REACT_FRAGMENT_TYPE: - return "Fragment"; - - case REACT_PORTAL_TYPE: - return "Portal"; - - case REACT_PROFILER_TYPE: - return "Profiler"; +function executeDispatchesAndReleaseTopLevel(e) { + return executeDispatchesAndRelease(e); +} - case REACT_STRICT_MODE_TYPE: - return "StrictMode"; +function runEventsInBatch(events) { + if (events !== null) { + eventQueue = accumulateInto(eventQueue, events); + } // Set `eventQueue` to null before processing it so that we can tell if more + // events get enqueued while processing. - case REACT_SUSPENSE_TYPE: - return "Suspense"; + var processingEventQueue = eventQueue; + eventQueue = null; - case REACT_SUSPENSE_LIST_TYPE: - return "SuspenseList"; + if (!processingEventQueue) { + return; } - if (typeof type === "object") { - switch (type.$$typeof) { - case REACT_CONTEXT_TYPE: - var context = type; - return getContextName$1(context) + ".Consumer"; - - case REACT_PROVIDER_TYPE: - var provider = type; - return getContextName$1(provider._context) + ".Provider"; + forEachAccumulated(processingEventQueue, executeDispatchesAndReleaseTopLevel); - case REACT_FORWARD_REF_TYPE: - return getWrappedName$1(type, type.render, "ForwardRef"); + if (eventQueue) { + throw new Error( + "processEventQueue(): Additional events were enqueued while processing " + + "an event queue. Support for this has not yet been implemented." + ); + } // This would be a good time to rethrow if any of the event handlers threw. - case REACT_MEMO_TYPE: - var outerName = type.displayName || null; + rethrowCaughtError(); +} - if (outerName !== null) { - return outerName; - } +/** + * Allows registered plugins an opportunity to extract events from top-level + * native browser events. + * + * @return {*} An accumulation of synthetic events. + * @internal + */ - return getComponentNameFromType(type.type) || "Memo"; +function extractPluginEvents( + topLevelType, + targetInst, + nativeEvent, + nativeEventTarget +) { + var events = null; + var legacyPlugins = plugins; - case REACT_LAZY_TYPE: { - var lazyComponent = type; - var payload = lazyComponent._payload; - var init = lazyComponent._init; + for (var i = 0; i < legacyPlugins.length; i++) { + // Not every plugin in the ordering may be loaded at runtime. + var possiblePlugin = legacyPlugins[i]; - try { - return getComponentNameFromType(init(payload)); - } catch (x) { - return null; - } - } + if (possiblePlugin) { + var extractedEvents = possiblePlugin.extractEvents( + topLevelType, + targetInst, + nativeEvent, + nativeEventTarget + ); - case REACT_SERVER_CONTEXT_TYPE: { - var context2 = type; - return (context2.displayName || context2._globalName) + ".Provider"; + if (extractedEvents) { + events = accumulateInto(events, extractedEvents); } - - // eslint-disable-next-line no-fallthrough } } - return null; -} - -function getWrappedName(outerType, innerType, wrapperName) { - var functionName = innerType.displayName || innerType.name || ""; - return ( - outerType.displayName || - (functionName !== "" ? wrapperName + "(" + functionName + ")" : wrapperName) - ); -} // Keep in sync with shared/getComponentNameFromType - -function getContextName(type) { - return type.displayName || "Context"; + return events; } -function getComponentNameFromFiber(fiber) { - var tag = fiber.tag, - type = fiber.type; - - switch (tag) { - case CacheComponent: - return "Cache"; - - case ContextConsumer: - var context = type; - return getContextName(context) + ".Consumer"; - - case ContextProvider: - var provider = type; - return getContextName(provider._context) + ".Provider"; - - case DehydratedFragment: - return "DehydratedFragment"; - - case ForwardRef: - return getWrappedName(type, type.render, "ForwardRef"); - - case Fragment: - return "Fragment"; - - case HostHoistable: - case HostSingleton: - case HostComponent: - // Host component type is the display name (e.g. "div", "View") - return type; - - case HostPortal: - return "Portal"; - - case HostRoot: - return "Root"; - - case HostText: - return "Text"; - - case LazyComponent: - // Name comes from the type in this case; we don't have a tag. - return getComponentNameFromType(type); - - case Mode: - if (type === REACT_STRICT_MODE_TYPE) { - // Don't be less specific than shared/getComponentNameFromType - return "StrictMode"; - } - - return "Mode"; - - case OffscreenComponent: - return "Offscreen"; - - case Profiler: - return "Profiler"; +function runExtractedPluginEventsInBatch( + topLevelType, + targetInst, + nativeEvent, + nativeEventTarget +) { + var events = extractPluginEvents( + topLevelType, + targetInst, + nativeEvent, + nativeEventTarget + ); + runEventsInBatch(events); +} - case ScopeComponent: - return "Scope"; +function dispatchEvent(target, topLevelType, nativeEvent) { + var targetFiber = target; + var eventTarget = null; - case SuspenseComponent: - return "Suspense"; + if (targetFiber != null) { + var stateNode = targetFiber.stateNode; // Guard against Fiber being unmounted - case SuspenseListComponent: - return "SuspenseList"; + if (stateNode != null) { + // $FlowExpectedError[incompatible-cast] public instances in Fabric do not implement `EventTarget` yet. + eventTarget = getPublicInstance(stateNode); + } + } - case TracingMarkerComponent: - return "TracingMarker"; - // The display name for this tags come from the user-provided type: + batchedUpdates$1(function () { + // Emit event to the RawEventEmitter. This is an unused-by-default EventEmitter + // that can be used to instrument event performance monitoring (primarily - could be useful + // for other things too). + // + // NOTE: this merely emits events into the EventEmitter below. + // If *you* do not add listeners to the `RawEventEmitter`, + // then all of these emitted events will just blackhole and are no-ops. + // It is available (although not officially supported... yet) if you want to collect + // perf data on event latency in your application, and could also be useful for debugging + // low-level events issues. + // + // If you do not have any event perf monitoring and are extremely concerned about event perf, + // it is safe to disable these "emit" statements; it will prevent checking the size of + // an empty array twice and prevent two no-ops. Practically the overhead is so low that + // we don't think it's worth thinking about in prod; your perf issues probably lie elsewhere. + // + // We emit two events here: one for listeners to this specific event, + // and one for the catchall listener '*', for any listeners that want + // to be notified for all events. + // Note that extracted events are *not* emitted, + // only events that have a 1:1 mapping with a native event, at least for now. + var event = { + eventName: topLevelType, + nativeEvent: nativeEvent + }; // $FlowFixMe[class-object-subtyping] found when upgrading Flow - case ClassComponent: - case FunctionComponent: - case IncompleteClassComponent: - case IndeterminateComponent: - case MemoComponent: - case SimpleMemoComponent: - if (typeof type === "function") { - return type.displayName || type.name || null; - } + ReactNativePrivateInterface.RawEventEmitter.emit(topLevelType, event); // $FlowFixMe[class-object-subtyping] found when upgrading Flow - if (typeof type === "string") { - return type; - } + ReactNativePrivateInterface.RawEventEmitter.emit("*", event); // Heritage plugin event system - break; + runExtractedPluginEventsInBatch( + topLevelType, + targetFiber, + nativeEvent, + eventTarget + ); + }); // React Native doesn't use ReactControlledComponent but if it did, here's + // where it would do it. +} - case LegacyHiddenComponent: { - return "LegacyHidden"; - } - } +// NOTE: There are no flags, currently. Uncomment the stuff below if we add one. +// the exports object every time a flag is read. - return null; -} +var enableUseRefAccessWarning = dynamicFlags.enableUseRefAccessWarning; // The rest of the flags are static for better dead code elimination. +var enableSchedulingProfiler = true; +var enableProfilerTimer = true; +var enableProfilerCommitHooks = true; +var enableProfilerNestedUpdatePhase = true; +var createRootStrictEffectsByDefault = false; +var enableLazyContextPropagation = false; var NoFlags$1 = /* */ @@ -3429,980 +3326,591 @@ var PassiveMask = Passive$1 | Visibility | ChildDeletion; // Union of tags that var StaticMask = LayoutStatic | PassiveStatic | RefStatic | SuspenseyCommit; -var ReactCurrentOwner$3 = ReactSharedInternals.ReactCurrentOwner; -function getNearestMountedFiber(fiber) { - var node = fiber; - var nearestMounted = fiber; +// This module only exists as an ESM wrapper around the external CommonJS +var scheduleCallback$1 = Scheduler.unstable_scheduleCallback; +var cancelCallback$1 = Scheduler.unstable_cancelCallback; +var shouldYield = Scheduler.unstable_shouldYield; +var requestPaint = Scheduler.unstable_requestPaint; +var now$1 = Scheduler.unstable_now; +var ImmediatePriority = Scheduler.unstable_ImmediatePriority; +var UserBlockingPriority = Scheduler.unstable_UserBlockingPriority; +var NormalPriority = Scheduler.unstable_NormalPriority; +var IdlePriority = Scheduler.unstable_IdlePriority; // this doesn't actually exist on the scheduler, but it *does* - if (!fiber.alternate) { - // If there is no alternate, this might be a new tree that isn't inserted - // yet. If it is, then it will have a pending insertion effect on it. - var nextNode = node; +// Helpers to patch console.logs to avoid logging during side-effect free +// replaying on render function. This currently only patches the object +// lazily which won't cover if the log function was extracted eagerly. +// We could also eagerly patch the method. +var disabledDepth = 0; +var prevLog; +var prevInfo; +var prevWarn; +var prevError; +var prevGroup; +var prevGroupCollapsed; +var prevGroupEnd; - do { - node = nextNode; +function disabledLog() {} - if ((node.flags & (Placement | Hydrating)) !== NoFlags$1) { - // This is an insertion or in-progress hydration. The nearest possible - // mounted fiber is the parent but we need to continue to figure out - // if that one is still mounted. - nearestMounted = node.return; - } // $FlowFixMe[incompatible-type] we bail out when we get a null +disabledLog.__reactDisabledLog = true; +function disableLogs() { + { + if (disabledDepth === 0) { + /* eslint-disable react-internal/no-production-logging */ + prevLog = console.log; + prevInfo = console.info; + prevWarn = console.warn; + prevError = console.error; + prevGroup = console.group; + prevGroupCollapsed = console.groupCollapsed; + prevGroupEnd = console.groupEnd; // https://github.com/facebook/react/issues/19099 - nextNode = node.return; - } while (nextNode); - } else { - while (node.return) { - node = node.return; - } - } + var props = { + configurable: true, + enumerable: true, + value: disabledLog, + writable: true + }; // $FlowFixMe Flow thinks console is immutable. - if (node.tag === HostRoot) { - // TODO: Check if this was a nested HostRoot when used with - // renderContainerIntoSubtree. - return nearestMounted; - } // If we didn't hit the root, that means that we're in an disconnected tree - // that has been unmounted. + Object.defineProperties(console, { + info: props, + log: props, + warn: props, + error: props, + group: props, + groupCollapsed: props, + groupEnd: props + }); + /* eslint-enable react-internal/no-production-logging */ + } - return null; -} -function isFiberMounted(fiber) { - return getNearestMountedFiber(fiber) === fiber; + disabledDepth++; + } } -function isMounted(component) { +function reenableLogs() { { - var owner = ReactCurrentOwner$3.current; + disabledDepth--; - if (owner !== null && owner.tag === ClassComponent) { - var ownerFiber = owner; - var instance = ownerFiber.stateNode; + if (disabledDepth === 0) { + /* eslint-disable react-internal/no-production-logging */ + var props = { + configurable: true, + enumerable: true, + writable: true + }; // $FlowFixMe Flow thinks console is immutable. - if (!instance._warnedAboutRefsInRender) { - error( - "%s is accessing isMounted inside its render() function. " + - "render() should be a pure function of props and state. It should " + - "never access something that requires stale data from the previous " + - "render, such as refs. Move this logic to componentDidMount and " + - "componentDidUpdate instead.", - getComponentNameFromFiber(ownerFiber) || "A component" - ); - } + Object.defineProperties(console, { + log: assign({}, props, { + value: prevLog + }), + info: assign({}, props, { + value: prevInfo + }), + warn: assign({}, props, { + value: prevWarn + }), + error: assign({}, props, { + value: prevError + }), + group: assign({}, props, { + value: prevGroup + }), + groupCollapsed: assign({}, props, { + value: prevGroupCollapsed + }), + groupEnd: assign({}, props, { + value: prevGroupEnd + }) + }); + /* eslint-enable react-internal/no-production-logging */ + } - instance._warnedAboutRefsInRender = true; + if (disabledDepth < 0) { + error( + "disabledDepth fell below zero. " + + "This is a bug in React. Please file an issue." + ); } } +} - var fiber = get(component); - - if (!fiber) { +var rendererID = null; +var injectedHook = null; +var injectedProfilingHooks = null; +var hasLoggedError = false; +var isDevToolsPresent = typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ !== "undefined"; +function injectInternals(internals) { + if (typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ === "undefined") { + // No DevTools return false; } - return getNearestMountedFiber(fiber) === fiber; -} + var hook = __REACT_DEVTOOLS_GLOBAL_HOOK__; -function assertIsMounted(fiber) { - if (getNearestMountedFiber(fiber) !== fiber) { - throw new Error("Unable to find node on an unmounted component."); + if (hook.isDisabled) { + // This isn't a real property on the hook, but it can be set to opt out + // of DevTools integration and associated warnings and logs. + // https://github.com/facebook/react/issues/3877 + return true; } -} - -function findCurrentFiberUsingSlowPath(fiber) { - var alternate = fiber.alternate; - if (!alternate) { - // If there is no alternate, then we only need to check if it is mounted. - var nearestMounted = getNearestMountedFiber(fiber); + if (!hook.supportsFiber) { + { + error( + "The installed version of React DevTools is too old and will not work " + + "with the current version of React. Please update React DevTools. " + + "https://reactjs.org/link/react-devtools" + ); + } // DevTools exists, even though it doesn't support Fiber. - if (nearestMounted === null) { - throw new Error("Unable to find node on an unmounted component."); - } + return true; + } - if (nearestMounted !== fiber) { - return null; + try { + if (enableSchedulingProfiler) { + // Conditionally inject these hooks only if Timeline profiler is supported by this build. + // This gives DevTools a way to feature detect that isn't tied to version number + // (since profiling and timeline are controlled by different feature flags). + internals = assign({}, internals, { + getLaneLabelMap: getLaneLabelMap, + injectProfilingHooks: injectProfilingHooks + }); } - return fiber; - } // If we have two possible branches, we'll walk backwards up to the root - // to see what path the root points to. On the way we may hit one of the - // special cases and we'll deal with them. - - var a = fiber; - var b = alternate; - - while (true) { - var parentA = a.return; + rendererID = hook.inject(internals); // We have successfully injected, so now it is safe to set up hooks. - if (parentA === null) { - // We're at the root. - break; + injectedHook = hook; + } catch (err) { + // Catch all errors because it is unsafe to throw during initialization. + { + error("React instrumentation encountered an error: %s.", err); } + } - var parentB = parentA.alternate; - - if (parentB === null) { - // There is no alternate. This is an unusual case. Currently, it only - // happens when a Suspense component is hidden. An extra fragment fiber - // is inserted in between the Suspense fiber and its children. Skip - // over this extra fragment fiber and proceed to the next parent. - var nextParent = parentA.return; - - if (nextParent !== null) { - a = b = nextParent; - continue; - } // If there's no parent, we're at the root. - - break; - } // If both copies of the parent fiber point to the same child, we can - // assume that the child is current. This happens when we bailout on low - // priority: the bailed out fiber's child reuses the current child. - - if (parentA.child === parentB.child) { - var child = parentA.child; - - while (child) { - if (child === a) { - // We've determined that A is the current branch. - assertIsMounted(parentA); - return fiber; - } + if (hook.checkDCE) { + // This is the real DevTools. + return true; + } else { + // This is likely a hook installed by Fast Refresh runtime. + return false; + } +} +function onScheduleRoot(root, children) { + { + if ( + injectedHook && + typeof injectedHook.onScheduleFiberRoot === "function" + ) { + try { + injectedHook.onScheduleFiberRoot(rendererID, root, children); + } catch (err) { + if (!hasLoggedError) { + hasLoggedError = true; - if (child === b) { - // We've determined that B is the current branch. - assertIsMounted(parentA); - return alternate; + error("React instrumentation encountered an error: %s", err); } - - child = child.sibling; - } // We should never have an alternate for any mounting node. So the only - // way this could possibly happen is if this was unmounted, if at all. - - throw new Error("Unable to find node on an unmounted component."); + } } + } +} +function onCommitRoot(root, eventPriority) { + if (injectedHook && typeof injectedHook.onCommitFiberRoot === "function") { + try { + var didError = (root.current.flags & DidCapture) === DidCapture; - if (a.return !== b.return) { - // The return pointer of A and the return pointer of B point to different - // fibers. We assume that return pointers never criss-cross, so A must - // belong to the child set of A.return, and B must belong to the child - // set of B.return. - a = parentA; - b = parentB; - } else { - // The return pointers point to the same fiber. We'll have to use the - // default, slow path: scan the child sets of each parent alternate to see - // which child belongs to which set. - // - // Search parent A's child set - var didFindChild = false; - var _child = parentA.child; - - while (_child) { - if (_child === a) { - didFindChild = true; - a = parentA; - b = parentB; - break; - } - - if (_child === b) { - didFindChild = true; - b = parentA; - a = parentB; - break; - } + if (enableProfilerTimer) { + var schedulerPriority; - _child = _child.sibling; - } + switch (eventPriority) { + case DiscreteEventPriority: + schedulerPriority = ImmediatePriority; + break; - if (!didFindChild) { - // Search parent B's child set - _child = parentB.child; + case ContinuousEventPriority: + schedulerPriority = UserBlockingPriority; + break; - while (_child) { - if (_child === a) { - didFindChild = true; - a = parentB; - b = parentA; + case DefaultEventPriority: + schedulerPriority = NormalPriority; break; - } - if (_child === b) { - didFindChild = true; - b = parentB; - a = parentA; + case IdleEventPriority: + schedulerPriority = IdlePriority; break; - } - _child = _child.sibling; + default: + schedulerPriority = NormalPriority; + break; } - if (!didFindChild) { - throw new Error( - "Child was not found in either parent set. This indicates a bug " + - "in React related to the return pointer. Please file an issue." - ); - } + injectedHook.onCommitFiberRoot( + rendererID, + root, + schedulerPriority, + didError + ); } - } - - if (a.alternate !== b) { - throw new Error( - "Return fibers should always be each others' alternates. " + - "This error is likely caused by a bug in React. Please file an issue." - ); - } - } // If the root is not a host container, we're in a disconnected tree. I.e. - // unmounted. + } catch (err) { + { + if (!hasLoggedError) { + hasLoggedError = true; - if (a.tag !== HostRoot) { - throw new Error("Unable to find node on an unmounted component."); + error("React instrumentation encountered an error: %s", err); + } + } + } } - - if (a.stateNode.current === a) { - // We've determined that A is the current branch. - return fiber; - } // Otherwise B has to be current branch. - - return alternate; } -function findCurrentHostFiber(parent) { - var currentParent = findCurrentFiberUsingSlowPath(parent); - return currentParent !== null - ? findCurrentHostFiberImpl(currentParent) - : null; -} - -function findCurrentHostFiberImpl(node) { - // Next we'll drill down this component to find the first HostComponent/Text. - var tag = node.tag; - +function onPostCommitRoot(root) { if ( - tag === HostComponent || - tag === HostHoistable || - tag === HostSingleton || - tag === HostText + injectedHook && + typeof injectedHook.onPostCommitFiberRoot === "function" ) { - return node; - } - - var child = node.child; - - while (child !== null) { - var match = findCurrentHostFiberImpl(child); + try { + injectedHook.onPostCommitFiberRoot(rendererID, root); + } catch (err) { + { + if (!hasLoggedError) { + hasLoggedError = true; - if (match !== null) { - return match; + error("React instrumentation encountered an error: %s", err); + } + } } - - child = child.sibling; } - - return null; } +function onCommitUnmount(fiber) { + if (injectedHook && typeof injectedHook.onCommitFiberUnmount === "function") { + try { + injectedHook.onCommitFiberUnmount(rendererID, fiber); + } catch (err) { + { + if (!hasLoggedError) { + hasLoggedError = true; -// Helpers to patch console.logs to avoid logging during side-effect free -// replaying on render function. This currently only patches the object -// lazily which won't cover if the log function was extracted eagerly. -// We could also eagerly patch the method. -var disabledDepth = 0; -var prevLog; -var prevInfo; -var prevWarn; -var prevError; -var prevGroup; -var prevGroupCollapsed; -var prevGroupEnd; - -function disabledLog() {} - -disabledLog.__reactDisabledLog = true; -function disableLogs() { - { - if (disabledDepth === 0) { - /* eslint-disable react-internal/no-production-logging */ - prevLog = console.log; - prevInfo = console.info; - prevWarn = console.warn; - prevError = console.error; - prevGroup = console.group; - prevGroupCollapsed = console.groupCollapsed; - prevGroupEnd = console.groupEnd; // https://github.com/facebook/react/issues/19099 - - var props = { - configurable: true, - enumerable: true, - value: disabledLog, - writable: true - }; // $FlowFixMe Flow thinks console is immutable. - - Object.defineProperties(console, { - info: props, - log: props, - warn: props, - error: props, - group: props, - groupCollapsed: props, - groupEnd: props - }); - /* eslint-enable react-internal/no-production-logging */ + error("React instrumentation encountered an error: %s", err); + } + } } - - disabledDepth++; } } -function reenableLogs() { +function setIsStrictModeForDevtools(newIsStrictMode) { { - disabledDepth--; - - if (disabledDepth === 0) { - /* eslint-disable react-internal/no-production-logging */ - var props = { - configurable: true, - enumerable: true, - writable: true - }; // $FlowFixMe Flow thinks console is immutable. - - Object.defineProperties(console, { - log: assign({}, props, { - value: prevLog - }), - info: assign({}, props, { - value: prevInfo - }), - warn: assign({}, props, { - value: prevWarn - }), - error: assign({}, props, { - value: prevError - }), - group: assign({}, props, { - value: prevGroup - }), - groupCollapsed: assign({}, props, { - value: prevGroupCollapsed - }), - groupEnd: assign({}, props, { - value: prevGroupEnd - }) - }); - /* eslint-enable react-internal/no-production-logging */ - } - - if (disabledDepth < 0) { - error( - "disabledDepth fell below zero. " + - "This is a bug in React. Please file an issue." - ); + if (newIsStrictMode) { + disableLogs(); + } else { + reenableLogs(); } } +} // Profiler API hooks + +function injectProfilingHooks(profilingHooks) { + injectedProfilingHooks = profilingHooks; } -function describeBuiltInComponentFrame(name, source, ownerFn) { +function getLaneLabelMap() { { - var ownerName = null; + var map = new Map(); + var lane = 1; - if (ownerFn) { - ownerName = ownerFn.displayName || ownerFn.name || null; + for (var index = 0; index < TotalLanes; index++) { + var label = getLabelForLane(lane); + map.set(lane, label); + lane *= 2; } - return describeComponentFrame(name, source, ownerName); + return map; } } -{ - var PossiblyWeakMap$1 = typeof WeakMap === "function" ? WeakMap : Map; - new PossiblyWeakMap$1(); -} -var BEFORE_SLASH_RE = /^(.*)[\\\/]/; - -function describeComponentFrame(name, source, ownerName) { - var sourceInfo = ""; - - if (source) { - var path = source.fileName; - var fileName = path.replace(BEFORE_SLASH_RE, ""); // In DEV, include code for a common special case: - // prefer "folder/index.js" instead of just "index.js". - - if (/^index\./.test(fileName)) { - var match = path.match(BEFORE_SLASH_RE); - - if (match) { - var pathBeforeSlash = match[1]; - - if (pathBeforeSlash) { - var folderName = pathBeforeSlash.replace(BEFORE_SLASH_RE, ""); - fileName = folderName + "/" + fileName; - } - } +function markCommitStarted(lanes) { + { + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markCommitStarted === "function" + ) { + injectedProfilingHooks.markCommitStarted(lanes); } - - sourceInfo = " (at " + fileName + ":" + source.lineNumber + ")"; - } else if (ownerName) { - sourceInfo = " (created by " + ownerName + ")"; } - - return "\n in " + (name || "Unknown") + sourceInfo; } - -function describeClassComponentFrame(ctor, source, ownerFn) { +function markCommitStopped() { { - return describeFunctionComponentFrame(ctor, source, ownerFn); + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markCommitStopped === "function" + ) { + injectedProfilingHooks.markCommitStopped(); + } } } -function describeFunctionComponentFrame(fn, source, ownerFn) { +function markComponentRenderStarted(fiber) { { - if (!fn) { - return ""; - } - - var name = fn.displayName || fn.name || null; - var ownerName = null; - - if (ownerFn) { - ownerName = ownerFn.displayName || ownerFn.name || null; + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markComponentRenderStarted === "function" + ) { + injectedProfilingHooks.markComponentRenderStarted(fiber); } - - return describeComponentFrame(name, source, ownerName); } } - -function describeUnknownElementTypeFrameInDEV(type, source, ownerFn) { - if (type == null) { - return ""; - } - - if (typeof type === "function") { - { - return describeFunctionComponentFrame(type, source, ownerFn); +function markComponentRenderStopped() { + { + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markComponentRenderStopped === "function" + ) { + injectedProfilingHooks.markComponentRenderStopped(); } } - - if (typeof type === "string") { - return describeBuiltInComponentFrame(type, source, ownerFn); - } - - switch (type) { - case REACT_SUSPENSE_TYPE: - return describeBuiltInComponentFrame("Suspense", source, ownerFn); - - case REACT_SUSPENSE_LIST_TYPE: - return describeBuiltInComponentFrame("SuspenseList", source, ownerFn); - } - - if (typeof type === "object") { - switch (type.$$typeof) { - case REACT_FORWARD_REF_TYPE: - return describeFunctionComponentFrame(type.render, source, ownerFn); - - case REACT_MEMO_TYPE: - // Memo may contain any component type so we recursively resolve it. - return describeUnknownElementTypeFrameInDEV(type.type, source, ownerFn); - - case REACT_LAZY_TYPE: { - var lazyComponent = type; - var payload = lazyComponent._payload; - var init = lazyComponent._init; - - try { - // Lazy may contain any component type so we recursively resolve it. - return describeUnknownElementTypeFrameInDEV( - init(payload), - source, - ownerFn - ); - } catch (x) {} - } +} +function markComponentPassiveEffectMountStarted(fiber) { + { + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markComponentPassiveEffectMountStarted === + "function" + ) { + injectedProfilingHooks.markComponentPassiveEffectMountStarted(fiber); } } - - return ""; } - -// $FlowFixMe[method-unbinding] -var hasOwnProperty = Object.prototype.hasOwnProperty; - -var loggedTypeFailures = {}; -var ReactDebugCurrentFrame$1 = ReactSharedInternals.ReactDebugCurrentFrame; - -function setCurrentlyValidatingElement(element) { +function markComponentPassiveEffectMountStopped() { { - if (element) { - var owner = element._owner; - var stack = describeUnknownElementTypeFrameInDEV( - element.type, - element._source, - owner ? owner.type : null - ); - ReactDebugCurrentFrame$1.setExtraStackFrame(stack); - } else { - ReactDebugCurrentFrame$1.setExtraStackFrame(null); + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markComponentPassiveEffectMountStopped === + "function" + ) { + injectedProfilingHooks.markComponentPassiveEffectMountStopped(); } } } - -function checkPropTypes(typeSpecs, values, location, componentName, element) { +function markComponentPassiveEffectUnmountStarted(fiber) { { - // $FlowFixMe This is okay but Flow doesn't know it. - var has = Function.call.bind(hasOwnProperty); - - for (var typeSpecName in typeSpecs) { - if (has(typeSpecs, typeSpecName)) { - var error$1 = void 0; // Prop type validation may throw. In case they do, we don't want to - // fail the render phase where it didn't fail before. So we log it. - // After these have been cleaned up, we'll let them throw. - - try { - // This is intentionally an invariant that gets caught. It's the same - // behavior as without this statement except with a better message. - if (typeof typeSpecs[typeSpecName] !== "function") { - // eslint-disable-next-line react-internal/prod-error-codes - var err = Error( - (componentName || "React class") + - ": " + - location + - " type `" + - typeSpecName + - "` is invalid; " + - "it must be a function, usually from the `prop-types` package, but received `" + - typeof typeSpecs[typeSpecName] + - "`." + - "This often happens because of typos such as `PropTypes.function` instead of `PropTypes.func`." - ); - err.name = "Invariant Violation"; - throw err; - } - - error$1 = typeSpecs[typeSpecName]( - values, - typeSpecName, - componentName, - location, - null, - "SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED" - ); - } catch (ex) { - error$1 = ex; - } - - if (error$1 && !(error$1 instanceof Error)) { - setCurrentlyValidatingElement(element); - - error( - "%s: type specification of %s" + - " `%s` is invalid; the type checker " + - "function must return `null` or an `Error` but returned a %s. " + - "You may have forgotten to pass an argument to the type checker " + - "creator (arrayOf, instanceOf, objectOf, oneOf, oneOfType, and " + - "shape all require an argument).", - componentName || "React class", - location, - typeSpecName, - typeof error$1 - ); - - setCurrentlyValidatingElement(null); - } - - if ( - error$1 instanceof Error && - !(error$1.message in loggedTypeFailures) - ) { - // Only monitor this failure once because there tends to be a lot of the - // same error. - loggedTypeFailures[error$1.message] = true; - setCurrentlyValidatingElement(element); - - error("Failed %s type: %s", location, error$1.message); - - setCurrentlyValidatingElement(null); - } - } + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markComponentPassiveEffectUnmountStarted === + "function" + ) { + injectedProfilingHooks.markComponentPassiveEffectUnmountStarted(fiber); } } } - -var valueStack = []; -var fiberStack; - -{ - fiberStack = []; -} - -var index = -1; - -function createCursor(defaultValue) { - return { - current: defaultValue - }; -} - -function pop(cursor, fiber) { - if (index < 0) { - { - error("Unexpected pop."); +function markComponentPassiveEffectUnmountStopped() { + { + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markComponentPassiveEffectUnmountStopped === + "function" + ) { + injectedProfilingHooks.markComponentPassiveEffectUnmountStopped(); } - - return; } - +} +function markComponentLayoutEffectMountStarted(fiber) { { - if (fiber !== fiberStack[index]) { - error("Unexpected Fiber popped."); + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markComponentLayoutEffectMountStarted === + "function" + ) { + injectedProfilingHooks.markComponentLayoutEffectMountStarted(fiber); } } - - cursor.current = valueStack[index]; - valueStack[index] = null; - +} +function markComponentLayoutEffectMountStopped() { { - fiberStack[index] = null; + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markComponentLayoutEffectMountStopped === + "function" + ) { + injectedProfilingHooks.markComponentLayoutEffectMountStopped(); + } } - - index--; } - -function push(cursor, value, fiber) { - index++; - valueStack[index] = cursor.current; - +function markComponentLayoutEffectUnmountStarted(fiber) { { - fiberStack[index] = fiber; + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markComponentLayoutEffectUnmountStarted === + "function" + ) { + injectedProfilingHooks.markComponentLayoutEffectUnmountStarted(fiber); + } } - - cursor.current = value; } - -var warnedAboutMissingGetChildContext; - -{ - warnedAboutMissingGetChildContext = {}; +function markComponentLayoutEffectUnmountStopped() { + { + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markComponentLayoutEffectUnmountStopped === + "function" + ) { + injectedProfilingHooks.markComponentLayoutEffectUnmountStopped(); + } + } } - -var emptyContextObject = {}; - -{ - Object.freeze(emptyContextObject); -} // A cursor to the current merged context object on the stack. - -var contextStackCursor$1 = createCursor(emptyContextObject); // A cursor to a boolean indicating whether the context has changed. - -var didPerformWorkStackCursor = createCursor(false); // Keep track of the previous context object that was on the stack. -// We use this to get access to the parent context after we have already -// pushed the next context provider, and now need to merge their contexts. - -var previousContext = emptyContextObject; - -function getUnmaskedContext( - workInProgress, - Component, - didPushOwnContextIfProvider -) { +function markComponentErrored(fiber, thrownValue, lanes) { { - if (didPushOwnContextIfProvider && isContextProvider(Component)) { - // If the fiber is a context provider itself, when we read its context - // we may have already pushed its own child context on the stack. A context - // provider should not "see" its own child context. Therefore we read the - // previous (parent) context instead for a context provider. - return previousContext; + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markComponentErrored === "function" + ) { + injectedProfilingHooks.markComponentErrored(fiber, thrownValue, lanes); } - - return contextStackCursor$1.current; } } - -function cacheContext(workInProgress, unmaskedContext, maskedContext) { +function markComponentSuspended(fiber, wakeable, lanes) { { - var instance = workInProgress.stateNode; - instance.__reactInternalMemoizedUnmaskedChildContext = unmaskedContext; - instance.__reactInternalMemoizedMaskedChildContext = maskedContext; + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markComponentSuspended === "function" + ) { + injectedProfilingHooks.markComponentSuspended(fiber, wakeable, lanes); + } } } - -function getMaskedContext(workInProgress, unmaskedContext) { +function markLayoutEffectsStarted(lanes) { { - var type = workInProgress.type; - var contextTypes = type.contextTypes; - - if (!contextTypes) { - return emptyContextObject; - } // Avoid recreating masked context unless unmasked context has changed. - // Failing to do this will result in unnecessary calls to componentWillReceiveProps. - // This may trigger infinite loops if componentWillReceiveProps calls setState. - - var instance = workInProgress.stateNode; - if ( - instance && - instance.__reactInternalMemoizedUnmaskedChildContext === unmaskedContext + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markLayoutEffectsStarted === "function" ) { - return instance.__reactInternalMemoizedMaskedChildContext; + injectedProfilingHooks.markLayoutEffectsStarted(lanes); } - - var context = {}; - - for (var key in contextTypes) { - context[key] = unmaskedContext[key]; + } +} +function markLayoutEffectsStopped() { + { + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markLayoutEffectsStopped === "function" + ) { + injectedProfilingHooks.markLayoutEffectsStopped(); } - - { - var name = getComponentNameFromFiber(workInProgress) || "Unknown"; - checkPropTypes(contextTypes, context, "context", name); - } // Cache unmasked context so we can avoid recreating masked context unless necessary. - // Context is created before the class component is instantiated so check for instance. - - if (instance) { - cacheContext(workInProgress, unmaskedContext, context); + } +} +function markPassiveEffectsStarted(lanes) { + { + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markPassiveEffectsStarted === "function" + ) { + injectedProfilingHooks.markPassiveEffectsStarted(lanes); } - - return context; } } - -function hasContextChanged() { +function markPassiveEffectsStopped() { { - return didPerformWorkStackCursor.current; + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markPassiveEffectsStopped === "function" + ) { + injectedProfilingHooks.markPassiveEffectsStopped(); + } } } - -function isContextProvider(type) { +function markRenderStarted(lanes) { { - var childContextTypes = type.childContextTypes; - return childContextTypes !== null && childContextTypes !== undefined; + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markRenderStarted === "function" + ) { + injectedProfilingHooks.markRenderStarted(lanes); + } } } - -function popContext(fiber) { +function markRenderYielded() { { - pop(didPerformWorkStackCursor, fiber); - pop(contextStackCursor$1, fiber); + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markRenderYielded === "function" + ) { + injectedProfilingHooks.markRenderYielded(); + } } } - -function popTopLevelContextObject(fiber) { +function markRenderStopped() { { - pop(didPerformWorkStackCursor, fiber); - pop(contextStackCursor$1, fiber); + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markRenderStopped === "function" + ) { + injectedProfilingHooks.markRenderStopped(); + } } } - -function pushTopLevelContextObject(fiber, context, didChange) { +function markRenderScheduled(lane) { { - if (contextStackCursor$1.current !== emptyContextObject) { - throw new Error( - "Unexpected context found on stack. " + - "This error is likely caused by a bug in React. Please file an issue." - ); + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markRenderScheduled === "function" + ) { + injectedProfilingHooks.markRenderScheduled(lane); } - - push(contextStackCursor$1, context, fiber); - push(didPerformWorkStackCursor, didChange, fiber); } } - -function processChildContext(fiber, type, parentContext) { +function markForceUpdateScheduled(fiber, lane) { { - var instance = fiber.stateNode; - var childContextTypes = type.childContextTypes; // TODO (bvaughn) Replace this behavior with an invariant() in the future. - // It has only been added in Fiber to match the (unintentional) behavior in Stack. - - if (typeof instance.getChildContext !== "function") { - { - var componentName = getComponentNameFromFiber(fiber) || "Unknown"; - - if (!warnedAboutMissingGetChildContext[componentName]) { - warnedAboutMissingGetChildContext[componentName] = true; + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markForceUpdateScheduled === "function" + ) { + injectedProfilingHooks.markForceUpdateScheduled(fiber, lane); + } + } +} +function markStateUpdateScheduled(fiber, lane) { + { + if ( + injectedProfilingHooks !== null && + typeof injectedProfilingHooks.markStateUpdateScheduled === "function" + ) { + injectedProfilingHooks.markStateUpdateScheduled(fiber, lane); + } + } +} - error( - "%s.childContextTypes is specified but there is no getChildContext() method " + - "on the instance. You can either define getChildContext() on %s or remove " + - "childContextTypes from it.", - componentName, - componentName - ); - } - } +var NoMode = + /* */ + 0; // TODO: Remove ConcurrentMode by reading from the root tag instead - return parentContext; - } +var ConcurrentMode = + /* */ + 1; +var ProfileMode = + /* */ + 2; +var StrictLegacyMode = + /* */ + 8; +var StrictEffectsMode = + /* */ + 16; +var ConcurrentUpdatesByDefaultMode = + /* */ + 32; - var childContext = instance.getChildContext(); +// TODO: This is pretty well supported by browsers. Maybe we can drop it. +var clz32 = Math.clz32 ? Math.clz32 : clz32Fallback; // Count leading zeros. +// Based on: +// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32 - for (var contextKey in childContext) { - if (!(contextKey in childContextTypes)) { - throw new Error( - (getComponentNameFromFiber(fiber) || "Unknown") + - '.getChildContext(): key "' + - contextKey + - '" is not defined in childContextTypes.' - ); - } - } +var log = Math.log; +var LN2 = Math.LN2; - { - var name = getComponentNameFromFiber(fiber) || "Unknown"; - checkPropTypes(childContextTypes, childContext, "child context", name); - } +function clz32Fallback(x) { + var asUint = x >>> 0; - return assign({}, parentContext, childContext); + if (asUint === 0) { + return 32; } + + return (31 - ((log(asUint) / LN2) | 0)) | 0; } -function pushContextProvider(workInProgress) { - { - var instance = workInProgress.stateNode; // We push the context as early as possible to ensure stack integrity. - // If the instance does not exist yet, we will push null at first, - // and replace it on the stack later when invalidating the context. - - var memoizedMergedChildContext = - (instance && instance.__reactInternalMemoizedMergedChildContext) || - emptyContextObject; // Remember the parent context so we can merge with it later. - // Inherit the parent's did-perform-work value to avoid inadvertently blocking updates. - - previousContext = contextStackCursor$1.current; - push(contextStackCursor$1, memoizedMergedChildContext, workInProgress); - push( - didPerformWorkStackCursor, - didPerformWorkStackCursor.current, - workInProgress - ); - return true; - } -} - -function invalidateContextProvider(workInProgress, type, didChange) { - { - var instance = workInProgress.stateNode; - - if (!instance) { - throw new Error( - "Expected to have an instance by this point. " + - "This error is likely caused by a bug in React. Please file an issue." - ); - } - - if (didChange) { - // Merge parent and own context. - // Skip this if we're not updating due to sCU. - // This avoids unnecessarily recomputing memoized values. - var mergedContext = processChildContext( - workInProgress, - type, - previousContext - ); - instance.__reactInternalMemoizedMergedChildContext = mergedContext; // Replace the old (or empty) context with the new one. - // It is important to unwind the context in the reverse order. - - pop(didPerformWorkStackCursor, workInProgress); - pop(contextStackCursor$1, workInProgress); // Now push the new context and mark that it has changed. - - push(contextStackCursor$1, mergedContext, workInProgress); - push(didPerformWorkStackCursor, didChange, workInProgress); - } else { - pop(didPerformWorkStackCursor, workInProgress); - push(didPerformWorkStackCursor, didChange, workInProgress); - } - } -} - -function findCurrentUnmaskedContext(fiber) { - { - // Currently this is only used with renderSubtreeIntoContainer; not sure if it - // makes sense elsewhere - if (!isFiberMounted(fiber) || fiber.tag !== ClassComponent) { - throw new Error( - "Expected subtree parent to be a mounted class component. " + - "This error is likely caused by a bug in React. Please file an issue." - ); - } - - var node = fiber; - - do { - switch (node.tag) { - case HostRoot: - return node.stateNode.context; - - case ClassComponent: { - var Component = node.type; - - if (isContextProvider(Component)) { - return node.stateNode.__reactInternalMemoizedMergedChildContext; - } - - break; - } - } // $FlowFixMe[incompatible-type] we bail out when we get a null - - node = node.return; - } while (node !== null); - - throw new Error( - "Found unexpected detached subtree parent. " + - "This error is likely caused by a bug in React. Please file an issue." - ); - } -} - -var LegacyRoot = 0; -var ConcurrentRoot = 1; - -// We use the existence of the state object as an indicator that the component -// is hidden. -var OffscreenVisible = - /* */ - 1; -var OffscreenDetached = - /* */ - 2; -var OffscreenPassiveEffectsConnected = - /* */ - 4; -function isOffscreenManual(offscreenFiber) { - return ( - offscreenFiber.memoizedProps !== null && - offscreenFiber.memoizedProps.mode === "manual" - ); -} - -var NoMode = - /* */ - 0; // TODO: Remove ConcurrentMode by reading from the root tag instead - -var ConcurrentMode = - /* */ - 1; -var ProfileMode = - /* */ - 2; -var StrictLegacyMode = - /* */ - 8; -var StrictEffectsMode = - /* */ - 16; -var ConcurrentUpdatesByDefaultMode = - /* */ - 32; - -// TODO: This is pretty well supported by browsers. Maybe we can drop it. -var clz32 = Math.clz32 ? Math.clz32 : clz32Fallback; // Count leading zeros. -// Based on: -// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32 - -var log = Math.log; -var LN2 = Math.LN2; - -function clz32Fallback(x) { - var asUint = x >>> 0; - - if (asUint === 0) { - return 32; - } - - return (31 - ((log(asUint) / LN2) | 0)) | 0; -} - -// If those values are changed that package should be rebuilt and redeployed. +// If those values are changed that package should be rebuilt and redeployed. var TotalLanes = 31; var NoLanes = @@ -5294,11654 +4802,11237 @@ function lanesToEventPriority(lanes) { return IdleEventPriority; } -// This module only exists as an ESM wrapper around the external CommonJS -var scheduleCallback$1 = Scheduler.unstable_scheduleCallback; -var cancelCallback$1 = Scheduler.unstable_cancelCallback; -var shouldYield = Scheduler.unstable_shouldYield; -var requestPaint = Scheduler.unstable_requestPaint; -var now$1 = Scheduler.unstable_now; -var ImmediatePriority = Scheduler.unstable_ImmediatePriority; -var UserBlockingPriority = Scheduler.unstable_UserBlockingPriority; -var NormalPriority = Scheduler.unstable_NormalPriority; -var IdlePriority = Scheduler.unstable_IdlePriority; // this doesn't actually exist on the scheduler, but it *does* - -var rendererID = null; -var injectedHook = null; -var injectedProfilingHooks = null; -var hasLoggedError = false; -var isDevToolsPresent = typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ !== "undefined"; -function injectInternals(internals) { - if (typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ === "undefined") { - // No DevTools - return false; - } +// Renderers that don't support mutation +// can re-export everything from this module. +function shim$1() { + throw new Error( + "The current renderer does not support mutation. " + + "This error is likely caused by a bug in React. " + + "Please file an issue." + ); +} // Mutation (when unsupported) +var commitMount = shim$1; - var hook = __REACT_DEVTOOLS_GLOBAL_HOOK__; +// Renderers that don't support hydration +// can re-export everything from this module. +function shim() { + throw new Error( + "The current renderer does not support hydration. " + + "This error is likely caused by a bug in React. " + + "Please file an issue." + ); +} // Hydration (when unsupported) +var isSuspenseInstancePending = shim; +var isSuspenseInstanceFallback = shim; +var getSuspenseInstanceFallbackErrorDetails = shim; +var registerSuspenseInstanceRetry = shim; +var errorHydratingContainer = shim; - if (hook.isDisabled) { - // This isn't a real property on the hook, but it can be set to opt out - // of DevTools integration and associated warnings and logs. - // https://github.com/facebook/react/issues/3877 - return true; - } +var _nativeFabricUIManage = nativeFabricUIManager, + createNode = _nativeFabricUIManage.createNode, + cloneNode = _nativeFabricUIManage.cloneNode, + cloneNodeWithNewChildren = _nativeFabricUIManage.cloneNodeWithNewChildren, + cloneNodeWithNewChildrenAndProps = + _nativeFabricUIManage.cloneNodeWithNewChildrenAndProps, + cloneNodeWithNewProps = _nativeFabricUIManage.cloneNodeWithNewProps, + createChildNodeSet = _nativeFabricUIManage.createChildSet, + appendChildNode = _nativeFabricUIManage.appendChild, + appendChildNodeToSet = _nativeFabricUIManage.appendChildToSet, + completeRoot = _nativeFabricUIManage.completeRoot, + registerEventHandler = _nativeFabricUIManage.registerEventHandler, + FabricDefaultPriority = _nativeFabricUIManage.unstable_DefaultEventPriority, + FabricDiscretePriority = _nativeFabricUIManage.unstable_DiscreteEventPriority, + fabricGetCurrentEventPriority = + _nativeFabricUIManage.unstable_getCurrentEventPriority; +var getViewConfigForType = + ReactNativePrivateInterface.ReactNativeViewConfigRegistry.get; // Counter for uniquely identifying views. +// % 10 === 1 means it is a rootTag. +// % 2 === 0 means it is a Fabric tag. +// This means that they never overlap. - if (!hook.supportsFiber) { - { - error( - "The installed version of React DevTools is too old and will not work " + - "with the current version of React. Please update React DevTools. " + - "https://reactjs.org/link/react-devtools" - ); - } // DevTools exists, even though it doesn't support Fiber. +var nextReactTag = 2; // TODO: Remove this conditional once all changes have propagated. - return true; - } +if (registerEventHandler) { + /** + * Register the event emitter with the native bridge + */ + registerEventHandler(dispatchEvent); +} +function appendInitialChild(parentInstance, child) { + appendChildNode(parentInstance.node, child.node); +} +function createInstance( + type, + props, + rootContainerInstance, + hostContext, + internalInstanceHandle +) { + var tag = nextReactTag; + nextReactTag += 2; + var viewConfig = getViewConfigForType(type); - try { - if (enableSchedulingProfiler) { - // Conditionally inject these hooks only if Timeline profiler is supported by this build. - // This gives DevTools a way to feature detect that isn't tied to version number - // (since profiling and timeline are controlled by different feature flags). - internals = assign({}, internals, { - getLaneLabelMap: getLaneLabelMap, - injectProfilingHooks: injectProfilingHooks - }); - } - - rendererID = hook.inject(internals); // We have successfully injected, so now it is safe to set up hooks. - - injectedHook = hook; - } catch (err) { - // Catch all errors because it is unsafe to throw during initialization. - { - error("React instrumentation encountered an error: %s.", err); + { + for (var key in viewConfig.validAttributes) { + if (props.hasOwnProperty(key)) { + ReactNativePrivateInterface.deepFreezeAndThrowOnMutationInDev( + props[key] + ); + } } } - if (hook.checkDCE) { - // This is the real DevTools. - return true; - } else { - // This is likely a hook installed by Fast Refresh runtime. - return false; - } + var updatePayload = create(props, viewConfig.validAttributes); + var node = createNode( + tag, // reactTag + viewConfig.uiViewClassName, // viewName + rootContainerInstance, // rootTag + updatePayload, // props + internalInstanceHandle // internalInstanceHandle + ); + var component = ReactNativePrivateInterface.createPublicInstance( + tag, + viewConfig, + internalInstanceHandle + ); + return { + node: node, + canonical: { + nativeTag: tag, + viewConfig: viewConfig, + currentProps: props, + internalInstanceHandle: internalInstanceHandle, + publicInstance: component + } + }; } -function onScheduleRoot(root, children) { +function createTextInstance( + text, + rootContainerInstance, + hostContext, + internalInstanceHandle +) { { - if ( - injectedHook && - typeof injectedHook.onScheduleFiberRoot === "function" - ) { - try { - injectedHook.onScheduleFiberRoot(rendererID, root, children); - } catch (err) { - if (!hasLoggedError) { - hasLoggedError = true; - - error("React instrumentation encountered an error: %s", err); - } - } + if (!hostContext.isInAParentText) { + error("Text strings must be rendered within a component."); } } -} -function onCommitRoot(root, eventPriority) { - if (injectedHook && typeof injectedHook.onCommitFiberRoot === "function") { - try { - var didError = (root.current.flags & DidCapture) === DidCapture; - - if (enableProfilerTimer) { - var schedulerPriority; - switch (eventPriority) { - case DiscreteEventPriority: - schedulerPriority = ImmediatePriority; - break; + var tag = nextReactTag; + nextReactTag += 2; + var node = createNode( + tag, // reactTag + "RCTRawText", // viewName + rootContainerInstance, // rootTag + { + text: text + }, // props + internalInstanceHandle // instance handle + ); + return { + node: node + }; +} +function getRootHostContext(rootContainerInstance) { + return { + isInAParentText: false + }; +} +function getChildHostContext(parentHostContext, type) { + var prevIsInAParentText = parentHostContext.isInAParentText; + var isInAParentText = + type === "AndroidTextInput" || // Android + type === "RCTMultilineTextInputView" || // iOS + type === "RCTSinglelineTextInputView" || // iOS + type === "RCTText" || + type === "RCTVirtualText"; // TODO: If this is an offscreen host container, we should reuse the + // parent context. - case ContinuousEventPriority: - schedulerPriority = UserBlockingPriority; - break; + if (prevIsInAParentText !== isInAParentText) { + return { + isInAParentText: isInAParentText + }; + } else { + return parentHostContext; + } +} +function getPublicInstance(instance) { + if (instance.canonical != null && instance.canonical.publicInstance != null) { + return instance.canonical.publicInstance; + } // For compatibility with the legacy renderer, in case it's used with Fabric + // in the same app. + // $FlowExpectedError[prop-missing] - case DefaultEventPriority: - schedulerPriority = NormalPriority; - break; + if (instance._nativeTag != null) { + // $FlowExpectedError[incompatible-return] + return instance; + } - case IdleEventPriority: - schedulerPriority = IdlePriority; - break; + return null; +} +function getPublicInstanceFromInternalInstanceHandle(internalInstanceHandle) { + var instance = internalInstanceHandle.stateNode; + return getPublicInstance(instance); +} +function prepareUpdate(instance, type, oldProps, newProps, hostContext) { + var viewConfig = instance.canonical.viewConfig; + var updatePayload = diff(oldProps, newProps, viewConfig.validAttributes); // TODO: If the event handlers have changed, we need to update the current props + // in the commit phase but there is no host config hook to do it yet. + // So instead we hack it by updating it in the render phase. - default: - schedulerPriority = NormalPriority; - break; - } + instance.canonical.currentProps = newProps; + return updatePayload; +} +function shouldSetTextContent(type, props) { + // TODO (bvaughn) Revisit this decision. + // Always returning false simplifies the createInstance() implementation, + // But creates an additional child Fiber for raw text children. + // No additional native views are created though. + // It's not clear to me which is better so I'm deferring for now. + // More context @ github.com/facebook/react/pull/8560#discussion_r92111303 + return false; +} +function getCurrentEventPriority() { + var currentEventPriority = fabricGetCurrentEventPriority + ? fabricGetCurrentEventPriority() + : null; - injectedHook.onCommitFiberRoot( - rendererID, - root, - schedulerPriority, - didError - ); - } - } catch (err) { - { - if (!hasLoggedError) { - hasLoggedError = true; + if (currentEventPriority != null) { + switch (currentEventPriority) { + case FabricDiscretePriority: + return DiscreteEventPriority; - error("React instrumentation encountered an error: %s", err); - } - } + case FabricDefaultPriority: + default: + return DefaultEventPriority; } } -} -function onPostCommitRoot(root) { - if ( - injectedHook && - typeof injectedHook.onPostCommitFiberRoot === "function" - ) { - try { - injectedHook.onPostCommitFiberRoot(rendererID, root); - } catch (err) { - { - if (!hasLoggedError) { - hasLoggedError = true; - error("React instrumentation encountered an error: %s", err); - } - } - } - } -} -function onCommitUnmount(fiber) { - if (injectedHook && typeof injectedHook.onCommitFiberUnmount === "function") { - try { - injectedHook.onCommitFiberUnmount(rendererID, fiber); - } catch (err) { - { - if (!hasLoggedError) { - hasLoggedError = true; + return DefaultEventPriority; +} // The Fabric renderer is secondary to the existing React Native renderer. - error("React instrumentation encountered an error: %s", err); - } - } +var warnsIfNotActing = false; +var scheduleTimeout = setTimeout; +var cancelTimeout = clearTimeout; +var noTimeout = -1; // ------------------- +function cloneInstance( + instance, + updatePayload, + type, + oldProps, + newProps, + internalInstanceHandle, + keepChildren, + recyclableInstance +) { + var node = instance.node; + var clone; + + if (keepChildren) { + if (updatePayload !== null) { + clone = cloneNodeWithNewProps(node, updatePayload); + } else { + clone = cloneNode(node); } - } -} -function setIsStrictModeForDevtools(newIsStrictMode) { - { - if (newIsStrictMode) { - disableLogs(); + } else { + if (updatePayload !== null) { + clone = cloneNodeWithNewChildrenAndProps(node, updatePayload); } else { - reenableLogs(); + clone = cloneNodeWithNewChildren(node); } } -} // Profiler API hooks -function injectProfilingHooks(profilingHooks) { - injectedProfilingHooks = profilingHooks; + return { + node: clone, + canonical: instance.canonical + }; +} +function cloneHiddenInstance(instance, type, props, internalInstanceHandle) { + var viewConfig = instance.canonical.viewConfig; + var node = instance.node; + var updatePayload = create( + { + style: { + display: "none" + } + }, + viewConfig.validAttributes + ); + return { + node: cloneNodeWithNewProps(node, updatePayload), + canonical: instance.canonical + }; +} +function cloneHiddenTextInstance(instance, text, internalInstanceHandle) { + throw new Error("Not yet implemented."); +} +function createContainerChildSet(container) { + return createChildNodeSet(container); +} +function appendChildToContainerChildSet(childSet, child) { + appendChildNodeToSet(childSet, child.node); +} +function finalizeContainerChildren(container, newChildren) { + completeRoot(container, newChildren); +} +function replaceContainerChildren(container, newChildren) {} +function preloadInstance(type, props) { + return true; +} +function waitForCommitToBeReady() { + return null; } -function getLaneLabelMap() { - { - var map = new Map(); - var lane = 1; +// This is ok in DOM because they types are interchangeable, but in React Native +// they aren't. - for (var index = 0; index < TotalLanes; index++) { - var label = getLabelForLane(lane); - map.set(lane, label); - lane *= 2; - } +function getInstanceFromNode(node) { + var instance = node; // In React Native, node is never a text instance - return map; - } + if ( + instance.canonical != null && + instance.canonical.internalInstanceHandle != null + ) { + return instance.canonical.internalInstanceHandle; + } // $FlowFixMe[incompatible-return] DevTools incorrectly passes a fiber in React Native. + + return node; } -function markCommitStarted(lanes) { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markCommitStarted === "function" - ) { - injectedProfilingHooks.markCommitStarted(lanes); - } +function getNodeFromInstance(fiber) { + var publicInstance = getPublicInstance(fiber.stateNode); + + if (publicInstance == null) { + throw new Error("Could not find host instance from fiber"); } + + return publicInstance; } -function markCommitStopped() { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markCommitStopped === "function" - ) { - injectedProfilingHooks.markCommitStopped(); - } - } + +function getFiberCurrentPropsFromNode(instance) { + return instance.canonical.currentProps; } -function markComponentRenderStarted(fiber) { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markComponentRenderStarted === "function" - ) { - injectedProfilingHooks.markComponentRenderStarted(fiber); + +var ReactFabricGlobalResponderHandler = { + onChange: function (from, to, blockNativeResponder) { + if (from && from.stateNode) { + // equivalent to clearJSResponder + nativeFabricUIManager.setIsJSResponder( + from.stateNode.node, + false, + blockNativeResponder || false + ); } - } -} -function markComponentRenderStopped() { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markComponentRenderStopped === "function" - ) { - injectedProfilingHooks.markComponentRenderStopped(); + + if (to && to.stateNode) { + // equivalent to setJSResponder + nativeFabricUIManager.setIsJSResponder( + to.stateNode.node, + true, + blockNativeResponder || false + ); } } +}; + +setComponentTree( + getFiberCurrentPropsFromNode, + getInstanceFromNode, + getNodeFromInstance +); +ResponderEventPlugin.injection.injectGlobalResponderHandler( + ReactFabricGlobalResponderHandler +); + +/** + * `ReactInstanceMap` maintains a mapping from a public facing stateful + * instance (key) and the internal representation (value). This allows public + * methods to accept the user facing instance as an argument and map them back + * to internal methods. + * + * Note that this module is currently shared and assumed to be stateless. + * If this becomes an actual Map, that will break. + */ +function get(key) { + return key._reactInternals; } -function markComponentPassiveEffectMountStarted(fiber) { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markComponentPassiveEffectMountStarted === - "function" - ) { - injectedProfilingHooks.markComponentPassiveEffectMountStarted(fiber); - } - } +function set(key, value) { + key._reactInternals = value; } -function markComponentPassiveEffectMountStopped() { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markComponentPassiveEffectMountStopped === - "function" - ) { - injectedProfilingHooks.markComponentPassiveEffectMountStopped(); - } + +// ATTENTION +// When adding new symbols to this file, +// Please consider also adding to 'react-devtools-shared/src/backend/ReactSymbols' +// The Symbol used to tag the ReactElement-like types. +var REACT_ELEMENT_TYPE = Symbol.for("react.element"); +var REACT_PORTAL_TYPE = Symbol.for("react.portal"); +var REACT_FRAGMENT_TYPE = Symbol.for("react.fragment"); +var REACT_STRICT_MODE_TYPE = Symbol.for("react.strict_mode"); +var REACT_PROFILER_TYPE = Symbol.for("react.profiler"); +var REACT_PROVIDER_TYPE = Symbol.for("react.provider"); +var REACT_CONTEXT_TYPE = Symbol.for("react.context"); +var REACT_SERVER_CONTEXT_TYPE = Symbol.for("react.server_context"); +var REACT_FORWARD_REF_TYPE = Symbol.for("react.forward_ref"); +var REACT_SUSPENSE_TYPE = Symbol.for("react.suspense"); +var REACT_SUSPENSE_LIST_TYPE = Symbol.for("react.suspense_list"); +var REACT_MEMO_TYPE = Symbol.for("react.memo"); +var REACT_LAZY_TYPE = Symbol.for("react.lazy"); +var REACT_SCOPE_TYPE = Symbol.for("react.scope"); +var REACT_DEBUG_TRACING_MODE_TYPE = Symbol.for("react.debug_trace_mode"); +var REACT_OFFSCREEN_TYPE = Symbol.for("react.offscreen"); +var REACT_LEGACY_HIDDEN_TYPE = Symbol.for("react.legacy_hidden"); +var REACT_CACHE_TYPE = Symbol.for("react.cache"); +var REACT_TRACING_MARKER_TYPE = Symbol.for("react.tracing_marker"); +var REACT_SERVER_CONTEXT_DEFAULT_VALUE_NOT_LOADED = Symbol.for( + "react.default_value" +); +var REACT_MEMO_CACHE_SENTINEL = Symbol.for("react.memo_cache_sentinel"); +var MAYBE_ITERATOR_SYMBOL = Symbol.iterator; +var FAUX_ITERATOR_SYMBOL = "@@iterator"; +function getIteratorFn(maybeIterable) { + if (maybeIterable === null || typeof maybeIterable !== "object") { + return null; } -} -function markComponentPassiveEffectUnmountStarted(fiber) { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markComponentPassiveEffectUnmountStarted === - "function" - ) { - injectedProfilingHooks.markComponentPassiveEffectUnmountStarted(fiber); - } + + var maybeIterator = + (MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL]) || + maybeIterable[FAUX_ITERATOR_SYMBOL]; + + if (typeof maybeIterator === "function") { + return maybeIterator; } + + return null; } -function markComponentPassiveEffectUnmountStopped() { + +function getWrappedName$1(outerType, innerType, wrapperName) { + var displayName = outerType.displayName; + + if (displayName) { + return displayName; + } + + var functionName = innerType.displayName || innerType.name || ""; + return functionName !== "" + ? wrapperName + "(" + functionName + ")" + : wrapperName; +} // Keep in sync with react-reconciler/getComponentNameFromFiber + +function getContextName$1(type) { + return type.displayName || "Context"; +} // Note that the reconciler package should generally prefer to use getComponentNameFromFiber() instead. + +function getComponentNameFromType(type) { + if (type == null) { + // Host root, text node or just invalid type. + return null; + } + { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markComponentPassiveEffectUnmountStopped === - "function" - ) { - injectedProfilingHooks.markComponentPassiveEffectUnmountStopped(); + if (typeof type.tag === "number") { + error( + "Received an unexpected object in getComponentNameFromType(). " + + "This is likely a bug in React. Please file an issue." + ); } } -} -function markComponentLayoutEffectMountStarted(fiber) { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markComponentLayoutEffectMountStarted === - "function" - ) { - injectedProfilingHooks.markComponentLayoutEffectMountStarted(fiber); - } - } -} -function markComponentLayoutEffectMountStopped() { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markComponentLayoutEffectMountStopped === - "function" - ) { - injectedProfilingHooks.markComponentLayoutEffectMountStopped(); - } - } -} -function markComponentLayoutEffectUnmountStarted(fiber) { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markComponentLayoutEffectUnmountStarted === - "function" - ) { - injectedProfilingHooks.markComponentLayoutEffectUnmountStarted(fiber); - } - } -} -function markComponentLayoutEffectUnmountStopped() { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markComponentLayoutEffectUnmountStopped === - "function" - ) { - injectedProfilingHooks.markComponentLayoutEffectUnmountStopped(); - } - } -} -function markComponentErrored(fiber, thrownValue, lanes) { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markComponentErrored === "function" - ) { - injectedProfilingHooks.markComponentErrored(fiber, thrownValue, lanes); - } - } -} -function markComponentSuspended(fiber, wakeable, lanes) { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markComponentSuspended === "function" - ) { - injectedProfilingHooks.markComponentSuspended(fiber, wakeable, lanes); - } - } -} -function markLayoutEffectsStarted(lanes) { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markLayoutEffectsStarted === "function" - ) { - injectedProfilingHooks.markLayoutEffectsStarted(lanes); - } - } -} -function markLayoutEffectsStopped() { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markLayoutEffectsStopped === "function" - ) { - injectedProfilingHooks.markLayoutEffectsStopped(); - } - } -} -function markPassiveEffectsStarted(lanes) { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markPassiveEffectsStarted === "function" - ) { - injectedProfilingHooks.markPassiveEffectsStarted(lanes); - } - } -} -function markPassiveEffectsStopped() { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markPassiveEffectsStopped === "function" - ) { - injectedProfilingHooks.markPassiveEffectsStopped(); - } - } -} -function markRenderStarted(lanes) { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markRenderStarted === "function" - ) { - injectedProfilingHooks.markRenderStarted(lanes); - } - } -} -function markRenderYielded() { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markRenderYielded === "function" - ) { - injectedProfilingHooks.markRenderYielded(); - } - } -} -function markRenderStopped() { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markRenderStopped === "function" - ) { - injectedProfilingHooks.markRenderStopped(); - } + + if (typeof type === "function") { + return type.displayName || type.name || null; } -} -function markRenderScheduled(lane) { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markRenderScheduled === "function" - ) { - injectedProfilingHooks.markRenderScheduled(lane); - } + + if (typeof type === "string") { + return type; } -} -function markForceUpdateScheduled(fiber, lane) { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markForceUpdateScheduled === "function" - ) { - injectedProfilingHooks.markForceUpdateScheduled(fiber, lane); - } + + switch (type) { + case REACT_FRAGMENT_TYPE: + return "Fragment"; + + case REACT_PORTAL_TYPE: + return "Portal"; + + case REACT_PROFILER_TYPE: + return "Profiler"; + + case REACT_STRICT_MODE_TYPE: + return "StrictMode"; + + case REACT_SUSPENSE_TYPE: + return "Suspense"; + + case REACT_SUSPENSE_LIST_TYPE: + return "SuspenseList"; } -} -function markStateUpdateScheduled(fiber, lane) { - { - if ( - injectedProfilingHooks !== null && - typeof injectedProfilingHooks.markStateUpdateScheduled === "function" - ) { - injectedProfilingHooks.markStateUpdateScheduled(fiber, lane); + + if (typeof type === "object") { + switch (type.$$typeof) { + case REACT_CONTEXT_TYPE: + var context = type; + return getContextName$1(context) + ".Consumer"; + + case REACT_PROVIDER_TYPE: + var provider = type; + return getContextName$1(provider._context) + ".Provider"; + + case REACT_FORWARD_REF_TYPE: + return getWrappedName$1(type, type.render, "ForwardRef"); + + case REACT_MEMO_TYPE: + var outerName = type.displayName || null; + + if (outerName !== null) { + return outerName; + } + + return getComponentNameFromType(type.type) || "Memo"; + + case REACT_LAZY_TYPE: { + var lazyComponent = type; + var payload = lazyComponent._payload; + var init = lazyComponent._init; + + try { + return getComponentNameFromType(init(payload)); + } catch (x) { + return null; + } + } + + case REACT_SERVER_CONTEXT_TYPE: { + var context2 = type; + return (context2.displayName || context2._globalName) + ".Provider"; + } + + // eslint-disable-next-line no-fallthrough } } + + return null; } -/** - * inlined Object.is polyfill to avoid requiring consumers ship their own - * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is - */ -function is(x, y) { +function getWrappedName(outerType, innerType, wrapperName) { + var functionName = innerType.displayName || innerType.name || ""; return ( - (x === y && (x !== 0 || 1 / x === 1 / y)) || (x !== x && y !== y) // eslint-disable-line no-self-compare + outerType.displayName || + (functionName !== "" ? wrapperName + "(" + functionName + ")" : wrapperName) ); +} // Keep in sync with shared/getComponentNameFromType + +function getContextName(type) { + return type.displayName || "Context"; } -var objectIs = typeof Object.is === "function" ? Object.is : is; // $FlowFixMe[method-unbinding] +function getComponentNameFromFiber(fiber) { + var tag = fiber.tag, + type = fiber.type; -var syncQueue = null; -var includesLegacySyncCallbacks = false; -var isFlushingSyncQueue = false; -function scheduleSyncCallback(callback) { - // Push this callback into an internal queue. We'll flush these either in - // the next tick, or earlier if something calls `flushSyncCallbackQueue`. - if (syncQueue === null) { - syncQueue = [callback]; - } else { - // Push onto existing queue. Don't need to schedule a callback because - // we already scheduled one when we created the queue. - syncQueue.push(callback); - } -} -function scheduleLegacySyncCallback(callback) { - includesLegacySyncCallbacks = true; - scheduleSyncCallback(callback); -} -function flushSyncCallbacksOnlyInLegacyMode() { - // Only flushes the queue if there's a legacy sync callback scheduled. - // TODO: There's only a single type of callback: performSyncOnWorkOnRoot. So - // it might make more sense for the queue to be a list of roots instead of a - // list of generic callbacks. Then we can have two: one for legacy roots, one - // for concurrent roots. And this method would only flush the legacy ones. - if (includesLegacySyncCallbacks) { - flushSyncCallbacks(); - } -} -function flushSyncCallbacks() { - if (!isFlushingSyncQueue && syncQueue !== null) { - // Prevent re-entrance. - isFlushingSyncQueue = true; // Set the event priority to discrete - // TODO: Is this necessary anymore? The only user code that runs in this - // queue is in the render or commit phases, which already set the - // event priority. Should be able to remove. + switch (tag) { + case CacheComponent: + return "Cache"; - var previousUpdatePriority = getCurrentUpdatePriority(); - setCurrentUpdatePriority(DiscreteEventPriority); - var errors = null; - var queue = syncQueue; // $FlowFixMe[incompatible-use] found when upgrading Flow + case ContextConsumer: + var context = type; + return getContextName(context) + ".Consumer"; - for (var i = 0; i < queue.length; i++) { - // $FlowFixMe[incompatible-use] found when upgrading Flow - var callback = queue[i]; + case ContextProvider: + var provider = type; + return getContextName(provider._context) + ".Provider"; - try { - do { - var isSync = true; // $FlowFixMe[incompatible-type] we bail out when we get a null + case DehydratedFragment: + return "DehydratedFragment"; - callback = callback(isSync); - } while (callback !== null); - } catch (error) { - // Collect errors so we can rethrow them at the end - if (errors === null) { - errors = [error]; - } else { - errors.push(error); - } + case ForwardRef: + return getWrappedName(type, type.render, "ForwardRef"); + + case Fragment: + return "Fragment"; + + case HostHoistable: + case HostSingleton: + case HostComponent: + // Host component type is the display name (e.g. "div", "View") + return type; + + case HostPortal: + return "Portal"; + + case HostRoot: + return "Root"; + + case HostText: + return "Text"; + + case LazyComponent: + // Name comes from the type in this case; we don't have a tag. + return getComponentNameFromType(type); + + case Mode: + if (type === REACT_STRICT_MODE_TYPE) { + // Don't be less specific than shared/getComponentNameFromType + return "StrictMode"; } - } - syncQueue = null; - includesLegacySyncCallbacks = false; - setCurrentUpdatePriority(previousUpdatePriority); - isFlushingSyncQueue = false; + return "Mode"; - if (errors !== null) { - if (errors.length > 1) { - if (typeof AggregateError === "function") { - // eslint-disable-next-line no-undef - throw new AggregateError(errors); - } else { - for (var _i = 1; _i < errors.length; _i++) { - scheduleCallback$1( - ImmediatePriority, - throwError.bind(null, errors[_i]) - ); - } + case OffscreenComponent: + return "Offscreen"; - var firstError = errors[0]; - throw firstError; - } - } else { - var error = errors[0]; - throw error; + case Profiler: + return "Profiler"; + + case ScopeComponent: + return "Scope"; + + case SuspenseComponent: + return "Suspense"; + + case SuspenseListComponent: + return "SuspenseList"; + + case TracingMarkerComponent: + return "TracingMarker"; + // The display name for this tags come from the user-provided type: + + case ClassComponent: + case FunctionComponent: + case IncompleteClassComponent: + case IndeterminateComponent: + case MemoComponent: + case SimpleMemoComponent: + if (typeof type === "function") { + return type.displayName || type.name || null; + } + + if (typeof type === "string") { + return type; } + + break; + + case LegacyHiddenComponent: { + return "LegacyHidden"; } } return null; } -function throwError(error) { - throw error; -} +var ReactCurrentOwner$3 = ReactSharedInternals.ReactCurrentOwner; +function getNearestMountedFiber(fiber) { + var node = fiber; + var nearestMounted = fiber; -// This is imported by the event replaying implementation in React DOM. It's -// in a separate file to break a circular dependency between the renderer and -// the reconciler. -function isRootDehydrated(root) { - var currentState = root.current.memoizedState; - return currentState.isDehydrated; -} + if (!fiber.alternate) { + // If there is no alternate, this might be a new tree that isn't inserted + // yet. If it is, then it will have a pending insertion effect on it. + var nextNode = node; -var contextStackCursor = createCursor(null); -var contextFiberStackCursor = createCursor(null); -var rootInstanceStackCursor = createCursor(null); + do { + node = nextNode; -function requiredContext(c) { - { - if (c === null) { - error( - "Expected host context to exist. This error is likely caused by a bug " + - "in React. Please file an issue." - ); + if ((node.flags & (Placement | Hydrating)) !== NoFlags$1) { + // This is an insertion or in-progress hydration. The nearest possible + // mounted fiber is the parent but we need to continue to figure out + // if that one is still mounted. + nearestMounted = node.return; + } // $FlowFixMe[incompatible-type] we bail out when we get a null + + nextNode = node.return; + } while (nextNode); + } else { + while (node.return) { + node = node.return; } } - return c; -} + if (node.tag === HostRoot) { + // TODO: Check if this was a nested HostRoot when used with + // renderContainerIntoSubtree. + return nearestMounted; + } // If we didn't hit the root, that means that we're in an disconnected tree + // that has been unmounted. -function getRootHostContainer() { - var rootInstance = requiredContext(rootInstanceStackCursor.current); - return rootInstance; + return null; +} +function isFiberMounted(fiber) { + return getNearestMountedFiber(fiber) === fiber; } +function isMounted(component) { + { + var owner = ReactCurrentOwner$3.current; -function pushHostContainer(fiber, nextRootInstance) { - // Push current root instance onto the stack; - // This allows us to reset root when portals are popped. - push(rootInstanceStackCursor, nextRootInstance, fiber); // Track the context and the Fiber that provided it. - // This enables us to pop only Fibers that provide unique contexts. + if (owner !== null && owner.tag === ClassComponent) { + var ownerFiber = owner; + var instance = ownerFiber.stateNode; - push(contextFiberStackCursor, fiber, fiber); // Finally, we need to push the host context to the stack. - // However, we can't just call getRootHostContext() and push it because - // we'd have a different number of entries on the stack depending on - // whether getRootHostContext() throws somewhere in renderer code or not. - // So we push an empty value first. This lets us safely unwind on errors. + if (!instance._warnedAboutRefsInRender) { + error( + "%s is accessing isMounted inside its render() function. " + + "render() should be a pure function of props and state. It should " + + "never access something that requires stale data from the previous " + + "render, such as refs. Move this logic to componentDidMount and " + + "componentDidUpdate instead.", + getComponentNameFromFiber(ownerFiber) || "A component" + ); + } - push(contextStackCursor, null, fiber); - var nextRootContext = getRootHostContext(); // Now that we know this function doesn't throw, replace it. + instance._warnedAboutRefsInRender = true; + } + } - pop(contextStackCursor, fiber); - push(contextStackCursor, nextRootContext, fiber); -} + var fiber = get(component); -function popHostContainer(fiber) { - pop(contextStackCursor, fiber); - pop(contextFiberStackCursor, fiber); - pop(rootInstanceStackCursor, fiber); + if (!fiber) { + return false; + } + + return getNearestMountedFiber(fiber) === fiber; } -function getHostContext() { - var context = requiredContext(contextStackCursor.current); - return context; +function assertIsMounted(fiber) { + if (getNearestMountedFiber(fiber) !== fiber) { + throw new Error("Unable to find node on an unmounted component."); + } } -function pushHostContext(fiber) { - var context = requiredContext(contextStackCursor.current); - var nextContext = getChildHostContext(context, fiber.type); // Don't push this Fiber's context unless it's unique. +function findCurrentFiberUsingSlowPath(fiber) { + var alternate = fiber.alternate; - if (context === nextContext) { - return; - } // Track the context and the Fiber that provided it. - // This enables us to pop only Fibers that provide unique contexts. + if (!alternate) { + // If there is no alternate, then we only need to check if it is mounted. + var nearestMounted = getNearestMountedFiber(fiber); - push(contextFiberStackCursor, fiber, fiber); - push(contextStackCursor, nextContext, fiber); -} + if (nearestMounted === null) { + throw new Error("Unable to find node on an unmounted component."); + } -function popHostContext(fiber) { - // Do not pop unless this Fiber provided the current context. - // pushHostContext() only pushes Fibers that provide unique contexts. - if (contextFiberStackCursor.current !== fiber) { - return; - } + if (nearestMounted !== fiber) { + return null; + } - pop(contextStackCursor, fiber); - pop(contextFiberStackCursor, fiber); -} + return fiber; + } // If we have two possible branches, we'll walk backwards up to the root + // to see what path the root points to. On the way we may hit one of the + // special cases and we'll deal with them. -var isHydrating = false; // This flag allows for warning supression when we expect there to be mismatches -// due to earlier mismatches or a suspended fiber. + var a = fiber; + var b = alternate; -var didSuspendOrErrorDEV = false; // Hydration errors that were thrown inside this boundary + while (true) { + var parentA = a.return; -var hydrationErrors = null; -function didSuspendOrErrorWhileHydratingDEV() { - { - return didSuspendOrErrorDEV; - } -} + if (parentA === null) { + // We're at the root. + break; + } -function prepareToHydrateHostInstance(fiber, hostContext) { - { - throw new Error( - "Expected prepareToHydrateHostInstance() to never be called. " + - "This error is likely caused by a bug in React. Please file an issue." - ); - } -} + var parentB = parentA.alternate; -function prepareToHydrateHostTextInstance(fiber) { - { - throw new Error( - "Expected prepareToHydrateHostTextInstance() to never be called. " + - "This error is likely caused by a bug in React. Please file an issue." - ); - } -} + if (parentB === null) { + // There is no alternate. This is an unusual case. Currently, it only + // happens when a Suspense component is hidden. An extra fragment fiber + // is inserted in between the Suspense fiber and its children. Skip + // over this extra fragment fiber and proceed to the next parent. + var nextParent = parentA.return; -function prepareToHydrateHostSuspenseInstance(fiber) { - { - throw new Error( - "Expected prepareToHydrateHostSuspenseInstance() to never be called. " + - "This error is likely caused by a bug in React. Please file an issue." - ); - } -} + if (nextParent !== null) { + a = b = nextParent; + continue; + } // If there's no parent, we're at the root. -function popHydrationState(fiber) { - { - return false; - } -} + break; + } // If both copies of the parent fiber point to the same child, we can + // assume that the child is current. This happens when we bailout on low + // priority: the bailed out fiber's child reuses the current child. -function upgradeHydrationErrorsToRecoverable() { - if (hydrationErrors !== null) { - // Successfully completed a forced client render. The errors that occurred - // during the hydration attempt are now recovered. We will log them in - // commit phase, once the entire tree has finished. - queueRecoverableErrors(hydrationErrors); - hydrationErrors = null; - } -} + if (parentA.child === parentB.child) { + var child = parentA.child; -function getIsHydrating() { - return isHydrating; -} + while (child) { + if (child === a) { + // We've determined that A is the current branch. + assertIsMounted(parentA); + return fiber; + } -function queueHydrationError(error) { - if (hydrationErrors === null) { - hydrationErrors = [error]; - } else { - hydrationErrors.push(error); - } -} + if (child === b) { + // We've determined that B is the current branch. + assertIsMounted(parentA); + return alternate; + } -// we wait until the current render is over (either finished or interrupted) -// before adding it to the fiber/hook queue. Push to this array so we can -// access the queue, fiber, update, et al later. + child = child.sibling; + } // We should never have an alternate for any mounting node. So the only + // way this could possibly happen is if this was unmounted, if at all. -var concurrentQueues = []; -var concurrentQueuesIndex = 0; -var concurrentlyUpdatedLanes = NoLanes; -function finishQueueingConcurrentUpdates() { - var endIndex = concurrentQueuesIndex; - concurrentQueuesIndex = 0; - concurrentlyUpdatedLanes = NoLanes; - var i = 0; + throw new Error("Unable to find node on an unmounted component."); + } - while (i < endIndex) { - var fiber = concurrentQueues[i]; - concurrentQueues[i++] = null; - var queue = concurrentQueues[i]; - concurrentQueues[i++] = null; - var update = concurrentQueues[i]; - concurrentQueues[i++] = null; - var lane = concurrentQueues[i]; - concurrentQueues[i++] = null; + if (a.return !== b.return) { + // The return pointer of A and the return pointer of B point to different + // fibers. We assume that return pointers never criss-cross, so A must + // belong to the child set of A.return, and B must belong to the child + // set of B.return. + a = parentA; + b = parentB; + } else { + // The return pointers point to the same fiber. We'll have to use the + // default, slow path: scan the child sets of each parent alternate to see + // which child belongs to which set. + // + // Search parent A's child set + var didFindChild = false; + var _child = parentA.child; - if (queue !== null && update !== null) { - var pending = queue.pending; + while (_child) { + if (_child === a) { + didFindChild = true; + a = parentA; + b = parentB; + break; + } - if (pending === null) { - // This is the first update. Create a circular list. - update.next = update; - } else { - update.next = pending.next; - pending.next = update; + if (_child === b) { + didFindChild = true; + b = parentA; + a = parentB; + break; + } + + _child = _child.sibling; } - queue.pending = update; + if (!didFindChild) { + // Search parent B's child set + _child = parentB.child; + + while (_child) { + if (_child === a) { + didFindChild = true; + a = parentB; + b = parentA; + break; + } + + if (_child === b) { + didFindChild = true; + b = parentB; + a = parentA; + break; + } + + _child = _child.sibling; + } + + if (!didFindChild) { + throw new Error( + "Child was not found in either parent set. This indicates a bug " + + "in React related to the return pointer. Please file an issue." + ); + } + } } - if (lane !== NoLane) { - markUpdateLaneFromFiberToRoot(fiber, update, lane); + if (a.alternate !== b) { + throw new Error( + "Return fibers should always be each others' alternates. " + + "This error is likely caused by a bug in React. Please file an issue." + ); } - } -} -function getConcurrentlyUpdatedLanes() { - return concurrentlyUpdatedLanes; -} + } // If the root is not a host container, we're in a disconnected tree. I.e. + // unmounted. -function enqueueUpdate$1(fiber, queue, update, lane) { - // Don't update the `childLanes` on the return path yet. If we already in - // the middle of rendering, wait until after it has completed. - concurrentQueues[concurrentQueuesIndex++] = fiber; - concurrentQueues[concurrentQueuesIndex++] = queue; - concurrentQueues[concurrentQueuesIndex++] = update; - concurrentQueues[concurrentQueuesIndex++] = lane; - concurrentlyUpdatedLanes = mergeLanes(concurrentlyUpdatedLanes, lane); // The fiber's `lane` field is used in some places to check if any work is - // scheduled, to perform an eager bailout, so we need to update it immediately. - // TODO: We should probably move this to the "shared" queue instead. + if (a.tag !== HostRoot) { + throw new Error("Unable to find node on an unmounted component."); + } - fiber.lanes = mergeLanes(fiber.lanes, lane); - var alternate = fiber.alternate; + if (a.stateNode.current === a) { + // We've determined that A is the current branch. + return fiber; + } // Otherwise B has to be current branch. - if (alternate !== null) { - alternate.lanes = mergeLanes(alternate.lanes, lane); - } + return alternate; +} +function findCurrentHostFiber(parent) { + var currentParent = findCurrentFiberUsingSlowPath(parent); + return currentParent !== null + ? findCurrentHostFiberImpl(currentParent) + : null; } -function enqueueConcurrentHookUpdate(fiber, queue, update, lane) { - var concurrentQueue = queue; - var concurrentUpdate = update; - enqueueUpdate$1(fiber, concurrentQueue, concurrentUpdate, lane); - return getRootForUpdatedFiber(fiber); -} -function enqueueConcurrentHookUpdateAndEagerlyBailout(fiber, queue, update) { - // This function is used to queue an update that doesn't need a rerender. The - // only reason we queue it is in case there's a subsequent higher priority - // update that causes it to be rebased. - var lane = NoLane; - var concurrentQueue = queue; - var concurrentUpdate = update; - enqueueUpdate$1(fiber, concurrentQueue, concurrentUpdate, lane); // Usually we can rely on the upcoming render phase to process the concurrent - // queue. However, since this is a bail out, we're not scheduling any work - // here. So the update we just queued will leak until something else happens - // to schedule work (if ever). - // - // Check if we're currently in the middle of rendering a tree, and if not, - // process the queue immediately to prevent a leak. - - var isConcurrentlyRendering = getWorkInProgressRoot() !== null; +function findCurrentHostFiberImpl(node) { + // Next we'll drill down this component to find the first HostComponent/Text. + var tag = node.tag; - if (!isConcurrentlyRendering) { - finishQueueingConcurrentUpdates(); + if ( + tag === HostComponent || + tag === HostHoistable || + tag === HostSingleton || + tag === HostText + ) { + return node; } -} -function enqueueConcurrentClassUpdate(fiber, queue, update, lane) { - var concurrentQueue = queue; - var concurrentUpdate = update; - enqueueUpdate$1(fiber, concurrentQueue, concurrentUpdate, lane); - return getRootForUpdatedFiber(fiber); -} -function enqueueConcurrentRenderForLane(fiber, lane) { - enqueueUpdate$1(fiber, null, null, lane); - return getRootForUpdatedFiber(fiber); -} // Calling this function outside this module should only be done for backwards -// compatibility and should always be accompanied by a warning. - -function unsafe_markUpdateLaneFromFiberToRoot(sourceFiber, lane) { - // NOTE: For Hyrum's Law reasons, if an infinite update loop is detected, it - // should throw before `markUpdateLaneFromFiberToRoot` is called. But this is - // undefined behavior and we can change it if we need to; it just so happens - // that, at the time of this writing, there's an internal product test that - // happens to rely on this. - var root = getRootForUpdatedFiber(sourceFiber); - markUpdateLaneFromFiberToRoot(sourceFiber, null, lane); - return root; -} -function markUpdateLaneFromFiberToRoot(sourceFiber, update, lane) { - // Update the source fiber's lanes - sourceFiber.lanes = mergeLanes(sourceFiber.lanes, lane); - var alternate = sourceFiber.alternate; + var child = node.child; - if (alternate !== null) { - alternate.lanes = mergeLanes(alternate.lanes, lane); - } // Walk the parent path to the root and update the child lanes. + while (child !== null) { + var match = findCurrentHostFiberImpl(child); - var isHidden = false; - var parent = sourceFiber.return; - var node = sourceFiber; + if (match !== null) { + return match; + } - while (parent !== null) { - parent.childLanes = mergeLanes(parent.childLanes, lane); - alternate = parent.alternate; + child = child.sibling; + } - if (alternate !== null) { - alternate.childLanes = mergeLanes(alternate.childLanes, lane); - } + return null; +} - if (parent.tag === OffscreenComponent) { - // Check if this offscreen boundary is currently hidden. - // - // The instance may be null if the Offscreen parent was unmounted. Usually - // the parent wouldn't be reachable in that case because we disconnect - // fibers from the tree when they are deleted. However, there's a weird - // edge case where setState is called on a fiber that was interrupted - // before it ever mounted. Because it never mounts, it also never gets - // deleted. Because it never gets deleted, its return pointer never gets - // disconnected. Which means it may be attached to a deleted Offscreen - // parent node. (This discovery suggests it may be better for memory usage - // if we don't attach the `return` pointer until the commit phase, though - // in order to do that we'd need some other way to track the return - // pointer during the initial render, like on the stack.) - // - // This case is always accompanied by a warning, but we still need to - // account for it. (There may be other cases that we haven't discovered, - // too.) - var offscreenInstance = parent.stateNode; +function describeBuiltInComponentFrame(name, source, ownerFn) { + { + var ownerName = null; - if ( - offscreenInstance !== null && - !(offscreenInstance._visibility & OffscreenVisible) - ) { - isHidden = true; - } + if (ownerFn) { + ownerName = ownerFn.displayName || ownerFn.name || null; } - node = parent; - parent = parent.return; + return describeComponentFrame(name, source, ownerName); } +} - if (isHidden && update !== null && node.tag === HostRoot) { - var root = node.stateNode; - markHiddenUpdate(root, update, lane); - } +{ + var PossiblyWeakMap$1 = typeof WeakMap === "function" ? WeakMap : Map; + new PossiblyWeakMap$1(); } +var BEFORE_SLASH_RE = /^(.*)[\\\/]/; -function getRootForUpdatedFiber(sourceFiber) { - // TODO: We will detect and infinite update loop and throw even if this fiber - // has already unmounted. This isn't really necessary but it happens to be the - // current behavior we've used for several release cycles. Consider not - // performing this check if the updated fiber already unmounted, since it's - // not possible for that to cause an infinite update loop. - throwIfInfiniteUpdateLoopDetected(); // When a setState happens, we must ensure the root is scheduled. Because - // update queues do not have a backpointer to the root, the only way to do - // this currently is to walk up the return path. This used to not be a big - // deal because we would have to walk up the return path to set - // the `childLanes`, anyway, but now those two traversals happen at - // different times. - // TODO: Consider adding a `root` backpointer on the update queue. +function describeComponentFrame(name, source, ownerName) { + var sourceInfo = ""; - detectUpdateOnUnmountedFiber(sourceFiber, sourceFiber); - var node = sourceFiber; - var parent = node.return; + if (source) { + var path = source.fileName; + var fileName = path.replace(BEFORE_SLASH_RE, ""); // In DEV, include code for a common special case: + // prefer "folder/index.js" instead of just "index.js". - while (parent !== null) { - detectUpdateOnUnmountedFiber(sourceFiber, node); - node = parent; - parent = node.return; + if (/^index\./.test(fileName)) { + var match = path.match(BEFORE_SLASH_RE); + + if (match) { + var pathBeforeSlash = match[1]; + + if (pathBeforeSlash) { + var folderName = pathBeforeSlash.replace(BEFORE_SLASH_RE, ""); + fileName = folderName + "/" + fileName; + } + } + } + + sourceInfo = " (at " + fileName + ":" + source.lineNumber + ")"; + } else if (ownerName) { + sourceInfo = " (created by " + ownerName + ")"; } - return node.tag === HostRoot ? node.stateNode : null; + return "\n in " + (name || "Unknown") + sourceInfo; } -function detectUpdateOnUnmountedFiber(sourceFiber, parent) { +function describeClassComponentFrame(ctor, source, ownerFn) { { - var alternate = parent.alternate; - - if ( - alternate === null && - (parent.flags & (Placement | Hydrating)) !== NoFlags$1 - ) { - warnAboutUpdateOnNotYetMountedFiberInDEV(sourceFiber); - } + return describeFunctionComponentFrame(ctor, source, ownerFn); } } +function describeFunctionComponentFrame(fn, source, ownerFn) { + { + if (!fn) { + return ""; + } -var UpdateState = 0; -var ReplaceState = 1; -var ForceUpdate = 2; -var CaptureUpdate = 3; // Global state that is reset at the beginning of calling `processUpdateQueue`. -// It should only be read right after calling `processUpdateQueue`, via -// `checkHasForceUpdateAfterProcessing`. + var name = fn.displayName || fn.name || null; + var ownerName = null; -var hasForceUpdate = false; -var didWarnUpdateInsideUpdate; -var currentlyProcessingQueue; + if (ownerFn) { + ownerName = ownerFn.displayName || ownerFn.name || null; + } -{ - didWarnUpdateInsideUpdate = false; - currentlyProcessingQueue = null; + return describeComponentFrame(name, source, ownerName); + } } -function initializeUpdateQueue(fiber) { - var queue = { - baseState: fiber.memoizedState, - firstBaseUpdate: null, - lastBaseUpdate: null, - shared: { - pending: null, - lanes: NoLanes, - hiddenCallbacks: null - }, - callbacks: null - }; - fiber.updateQueue = queue; -} -function cloneUpdateQueue(current, workInProgress) { - // Clone the update queue from current. Unless it's already a clone. - var queue = workInProgress.updateQueue; - var currentQueue = current.updateQueue; +function describeUnknownElementTypeFrameInDEV(type, source, ownerFn) { + if (type == null) { + return ""; + } - if (queue === currentQueue) { - var clone = { - baseState: currentQueue.baseState, - firstBaseUpdate: currentQueue.firstBaseUpdate, - lastBaseUpdate: currentQueue.lastBaseUpdate, - shared: currentQueue.shared, - callbacks: null - }; - workInProgress.updateQueue = clone; + if (typeof type === "function") { + { + return describeFunctionComponentFrame(type, source, ownerFn); + } } -} -function createUpdate(lane) { - var update = { - lane: lane, - tag: UpdateState, - payload: null, - callback: null, - next: null - }; - return update; -} -function enqueueUpdate(fiber, update, lane) { - var updateQueue = fiber.updateQueue; - if (updateQueue === null) { - // Only occurs if the fiber has been unmounted. - return null; + if (typeof type === "string") { + return describeBuiltInComponentFrame(type, source, ownerFn); } - var sharedQueue = updateQueue.shared; + switch (type) { + case REACT_SUSPENSE_TYPE: + return describeBuiltInComponentFrame("Suspense", source, ownerFn); - { - if ( - currentlyProcessingQueue === sharedQueue && - !didWarnUpdateInsideUpdate - ) { - var componentName = getComponentNameFromFiber(fiber); + case REACT_SUSPENSE_LIST_TYPE: + return describeBuiltInComponentFrame("SuspenseList", source, ownerFn); + } - error( - "An update (setState, replaceState, or forceUpdate) was scheduled " + - "from inside an update function. Update functions should be pure, " + - "with zero side-effects. Consider using componentDidUpdate or a " + - "callback.\n\nPlease update the following component: %s", - componentName - ); + if (typeof type === "object") { + switch (type.$$typeof) { + case REACT_FORWARD_REF_TYPE: + return describeFunctionComponentFrame(type.render, source, ownerFn); - didWarnUpdateInsideUpdate = true; + case REACT_MEMO_TYPE: + // Memo may contain any component type so we recursively resolve it. + return describeUnknownElementTypeFrameInDEV(type.type, source, ownerFn); + + case REACT_LAZY_TYPE: { + var lazyComponent = type; + var payload = lazyComponent._payload; + var init = lazyComponent._init; + + try { + // Lazy may contain any component type so we recursively resolve it. + return describeUnknownElementTypeFrameInDEV( + init(payload), + source, + ownerFn + ); + } catch (x) {} + } } } - if (isUnsafeClassRenderPhaseUpdate()) { - // This is an unsafe render phase update. Add directly to the update - // queue so we can process it immediately during the current render. - var pending = sharedQueue.pending; + return ""; +} - if (pending === null) { - // This is the first update. Create a circular list. - update.next = update; - } else { - update.next = pending.next; - pending.next = update; - } +// $FlowFixMe[method-unbinding] +var hasOwnProperty = Object.prototype.hasOwnProperty; - sharedQueue.pending = update; // Update the childLanes even though we're most likely already rendering - // this fiber. This is for backwards compatibility in the case where you - // update a different component during render phase than the one that is - // currently renderings (a pattern that is accompanied by a warning). +var loggedTypeFailures = {}; +var ReactDebugCurrentFrame$1 = ReactSharedInternals.ReactDebugCurrentFrame; - return unsafe_markUpdateLaneFromFiberToRoot(fiber, lane); - } else { - return enqueueConcurrentClassUpdate(fiber, sharedQueue, update, lane); +function setCurrentlyValidatingElement(element) { + { + if (element) { + var owner = element._owner; + var stack = describeUnknownElementTypeFrameInDEV( + element.type, + element._source, + owner ? owner.type : null + ); + ReactDebugCurrentFrame$1.setExtraStackFrame(stack); + } else { + ReactDebugCurrentFrame$1.setExtraStackFrame(null); + } } } -function entangleTransitions(root, fiber, lane) { - var updateQueue = fiber.updateQueue; - if (updateQueue === null) { - // Only occurs if the fiber has been unmounted. - return; - } +function checkPropTypes(typeSpecs, values, location, componentName, element) { + { + // $FlowFixMe This is okay but Flow doesn't know it. + var has = Function.call.bind(hasOwnProperty); - var sharedQueue = updateQueue.shared; + for (var typeSpecName in typeSpecs) { + if (has(typeSpecs, typeSpecName)) { + var error$1 = void 0; // Prop type validation may throw. In case they do, we don't want to + // fail the render phase where it didn't fail before. So we log it. + // After these have been cleaned up, we'll let them throw. - if (isTransitionLane(lane)) { - var queueLanes = sharedQueue.lanes; // If any entangled lanes are no longer pending on the root, then they must - // have finished. We can remove them from the shared queue, which represents - // a superset of the actually pending lanes. In some cases we may entangle - // more than we need to, but that's OK. In fact it's worse if we *don't* - // entangle when we should. + try { + // This is intentionally an invariant that gets caught. It's the same + // behavior as without this statement except with a better message. + if (typeof typeSpecs[typeSpecName] !== "function") { + // eslint-disable-next-line react-internal/prod-error-codes + var err = Error( + (componentName || "React class") + + ": " + + location + + " type `" + + typeSpecName + + "` is invalid; " + + "it must be a function, usually from the `prop-types` package, but received `" + + typeof typeSpecs[typeSpecName] + + "`." + + "This often happens because of typos such as `PropTypes.function` instead of `PropTypes.func`." + ); + err.name = "Invariant Violation"; + throw err; + } - queueLanes = intersectLanes(queueLanes, root.pendingLanes); // Entangle the new transition lane with the other transition lanes. + error$1 = typeSpecs[typeSpecName]( + values, + typeSpecName, + componentName, + location, + null, + "SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED" + ); + } catch (ex) { + error$1 = ex; + } - var newQueueLanes = mergeLanes(queueLanes, lane); - sharedQueue.lanes = newQueueLanes; // Even if queue.lanes already include lane, we don't know for certain if - // the lane finished since the last time we entangled it. So we need to - // entangle it again, just to be sure. + if (error$1 && !(error$1 instanceof Error)) { + setCurrentlyValidatingElement(element); - markRootEntangled(root, newQueueLanes); - } -} -function enqueueCapturedUpdate(workInProgress, capturedUpdate) { - // Captured updates are updates that are thrown by a child during the render - // phase. They should be discarded if the render is aborted. Therefore, - // we should only put them on the work-in-progress queue, not the current one. - var queue = workInProgress.updateQueue; // Check if the work-in-progress queue is a clone. + error( + "%s: type specification of %s" + + " `%s` is invalid; the type checker " + + "function must return `null` or an `Error` but returned a %s. " + + "You may have forgotten to pass an argument to the type checker " + + "creator (arrayOf, instanceOf, objectOf, oneOf, oneOfType, and " + + "shape all require an argument).", + componentName || "React class", + location, + typeSpecName, + typeof error$1 + ); - var current = workInProgress.alternate; + setCurrentlyValidatingElement(null); + } - if (current !== null) { - var currentQueue = current.updateQueue; + if ( + error$1 instanceof Error && + !(error$1.message in loggedTypeFailures) + ) { + // Only monitor this failure once because there tends to be a lot of the + // same error. + loggedTypeFailures[error$1.message] = true; + setCurrentlyValidatingElement(element); - if (queue === currentQueue) { - // The work-in-progress queue is the same as current. This happens when - // we bail out on a parent fiber that then captures an error thrown by - // a child. Since we want to append the update only to the work-in - // -progress queue, we need to clone the updates. We usually clone during - // processUpdateQueue, but that didn't happen in this case because we - // skipped over the parent when we bailed out. - var newFirst = null; - var newLast = null; - var firstBaseUpdate = queue.firstBaseUpdate; + error("Failed %s type: %s", location, error$1.message); - if (firstBaseUpdate !== null) { - // Loop through the updates and clone them. - var update = firstBaseUpdate; + setCurrentlyValidatingElement(null); + } + } + } + } +} - do { - var clone = { - lane: update.lane, - tag: update.tag, - payload: update.payload, - // When this update is rebased, we should not fire its - // callback again. - callback: null, - next: null - }; +var valueStack = []; +var fiberStack; - if (newLast === null) { - newFirst = newLast = clone; - } else { - newLast.next = clone; - newLast = clone; - } // $FlowFixMe[incompatible-type] we bail out when we get a null +{ + fiberStack = []; +} - update = update.next; - } while (update !== null); // Append the captured update the end of the cloned list. +var index = -1; - if (newLast === null) { - newFirst = newLast = capturedUpdate; - } else { - newLast.next = capturedUpdate; - newLast = capturedUpdate; - } - } else { - // There are no base updates. - newFirst = newLast = capturedUpdate; - } +function createCursor(defaultValue) { + return { + current: defaultValue + }; +} - queue = { - baseState: currentQueue.baseState, - firstBaseUpdate: newFirst, - lastBaseUpdate: newLast, - shared: currentQueue.shared, - callbacks: currentQueue.callbacks - }; - workInProgress.updateQueue = queue; - return; +function pop(cursor, fiber) { + if (index < 0) { + { + error("Unexpected pop."); } - } // Append the update to the end of the list. - - var lastBaseUpdate = queue.lastBaseUpdate; - if (lastBaseUpdate === null) { - queue.firstBaseUpdate = capturedUpdate; - } else { - lastBaseUpdate.next = capturedUpdate; + return; } - queue.lastBaseUpdate = capturedUpdate; -} - -function getStateFromUpdate( - workInProgress, - queue, - update, - prevState, - nextProps, - instance -) { - switch (update.tag) { - case ReplaceState: { - var payload = update.payload; + { + if (fiber !== fiberStack[index]) { + error("Unexpected Fiber popped."); + } + } - if (typeof payload === "function") { - // Updater function - { - enterDisallowedContextReadInDEV(); - } + cursor.current = valueStack[index]; + valueStack[index] = null; - var nextState = payload.call(instance, prevState, nextProps); + { + fiberStack[index] = null; + } - { - if (workInProgress.mode & StrictLegacyMode) { - setIsStrictModeForDevtools(true); + index--; +} - try { - payload.call(instance, prevState, nextProps); - } finally { - setIsStrictModeForDevtools(false); - } - } +function push(cursor, value, fiber) { + index++; + valueStack[index] = cursor.current; - exitDisallowedContextReadInDEV(); - } + { + fiberStack[index] = fiber; + } - return nextState; - } // State object + cursor.current = value; +} - return payload; - } +var warnedAboutMissingGetChildContext; - case CaptureUpdate: { - workInProgress.flags = - (workInProgress.flags & ~ShouldCapture) | DidCapture; +{ + warnedAboutMissingGetChildContext = {}; +} + +var emptyContextObject = {}; + +{ + Object.freeze(emptyContextObject); +} // A cursor to the current merged context object on the stack. + +var contextStackCursor$1 = createCursor(emptyContextObject); // A cursor to a boolean indicating whether the context has changed. + +var didPerformWorkStackCursor = createCursor(false); // Keep track of the previous context object that was on the stack. +// We use this to get access to the parent context after we have already +// pushed the next context provider, and now need to merge their contexts. + +var previousContext = emptyContextObject; + +function getUnmaskedContext( + workInProgress, + Component, + didPushOwnContextIfProvider +) { + { + if (didPushOwnContextIfProvider && isContextProvider(Component)) { + // If the fiber is a context provider itself, when we read its context + // we may have already pushed its own child context on the stack. A context + // provider should not "see" its own child context. Therefore we read the + // previous (parent) context instead for a context provider. + return previousContext; } - // Intentional fallthrough - case UpdateState: { - var _payload = update.payload; - var partialState; + return contextStackCursor$1.current; + } +} - if (typeof _payload === "function") { - // Updater function - { - enterDisallowedContextReadInDEV(); - } +function cacheContext(workInProgress, unmaskedContext, maskedContext) { + { + var instance = workInProgress.stateNode; + instance.__reactInternalMemoizedUnmaskedChildContext = unmaskedContext; + instance.__reactInternalMemoizedMaskedChildContext = maskedContext; + } +} - partialState = _payload.call(instance, prevState, nextProps); +function getMaskedContext(workInProgress, unmaskedContext) { + { + var type = workInProgress.type; + var contextTypes = type.contextTypes; - { - if (workInProgress.mode & StrictLegacyMode) { - setIsStrictModeForDevtools(true); + if (!contextTypes) { + return emptyContextObject; + } // Avoid recreating masked context unless unmasked context has changed. + // Failing to do this will result in unnecessary calls to componentWillReceiveProps. + // This may trigger infinite loops if componentWillReceiveProps calls setState. - try { - _payload.call(instance, prevState, nextProps); - } finally { - setIsStrictModeForDevtools(false); - } - } + var instance = workInProgress.stateNode; - exitDisallowedContextReadInDEV(); - } - } else { - // Partial state object - partialState = _payload; - } + if ( + instance && + instance.__reactInternalMemoizedUnmaskedChildContext === unmaskedContext + ) { + return instance.__reactInternalMemoizedMaskedChildContext; + } - if (partialState === null || partialState === undefined) { - // Null and undefined are treated as no-ops. - return prevState; - } // Merge the partial state and the previous state. + var context = {}; - return assign({}, prevState, partialState); + for (var key in contextTypes) { + context[key] = unmaskedContext[key]; } - case ForceUpdate: { - hasForceUpdate = true; - return prevState; + { + var name = getComponentNameFromFiber(workInProgress) || "Unknown"; + checkPropTypes(contextTypes, context, "context", name); + } // Cache unmasked context so we can avoid recreating masked context unless necessary. + // Context is created before the class component is instantiated so check for instance. + + if (instance) { + cacheContext(workInProgress, unmaskedContext, context); } - } - return prevState; + return context; + } } -function processUpdateQueue(workInProgress, props, instance, renderLanes) { - // This is always non-null on a ClassComponent or HostRoot - var queue = workInProgress.updateQueue; - hasForceUpdate = false; - +function hasContextChanged() { { - currentlyProcessingQueue = queue.shared; + return didPerformWorkStackCursor.current; } +} - var firstBaseUpdate = queue.firstBaseUpdate; - var lastBaseUpdate = queue.lastBaseUpdate; // Check if there are pending updates. If so, transfer them to the base queue. - - var pendingQueue = queue.shared.pending; +function isContextProvider(type) { + { + var childContextTypes = type.childContextTypes; + return childContextTypes !== null && childContextTypes !== undefined; + } +} - if (pendingQueue !== null) { - queue.shared.pending = null; // The pending queue is circular. Disconnect the pointer between first - // and last so that it's non-circular. +function popContext(fiber) { + { + pop(didPerformWorkStackCursor, fiber); + pop(contextStackCursor$1, fiber); + } +} - var lastPendingUpdate = pendingQueue; - var firstPendingUpdate = lastPendingUpdate.next; - lastPendingUpdate.next = null; // Append pending updates to base queue +function popTopLevelContextObject(fiber) { + { + pop(didPerformWorkStackCursor, fiber); + pop(contextStackCursor$1, fiber); + } +} - if (lastBaseUpdate === null) { - firstBaseUpdate = firstPendingUpdate; - } else { - lastBaseUpdate.next = firstPendingUpdate; +function pushTopLevelContextObject(fiber, context, didChange) { + { + if (contextStackCursor$1.current !== emptyContextObject) { + throw new Error( + "Unexpected context found on stack. " + + "This error is likely caused by a bug in React. Please file an issue." + ); } - lastBaseUpdate = lastPendingUpdate; // If there's a current queue, and it's different from the base queue, then - // we need to transfer the updates to that queue, too. Because the base - // queue is a singly-linked list with no cycles, we can append to both - // lists and take advantage of structural sharing. - // TODO: Pass `current` as argument + push(contextStackCursor$1, context, fiber); + push(didPerformWorkStackCursor, didChange, fiber); + } +} - var current = workInProgress.alternate; +function processChildContext(fiber, type, parentContext) { + { + var instance = fiber.stateNode; + var childContextTypes = type.childContextTypes; // TODO (bvaughn) Replace this behavior with an invariant() in the future. + // It has only been added in Fiber to match the (unintentional) behavior in Stack. - if (current !== null) { - // This is always non-null on a ClassComponent or HostRoot - var currentQueue = current.updateQueue; - var currentLastBaseUpdate = currentQueue.lastBaseUpdate; + if (typeof instance.getChildContext !== "function") { + { + var componentName = getComponentNameFromFiber(fiber) || "Unknown"; - if (currentLastBaseUpdate !== lastBaseUpdate) { - if (currentLastBaseUpdate === null) { - currentQueue.firstBaseUpdate = firstPendingUpdate; - } else { - currentLastBaseUpdate.next = firstPendingUpdate; - } + if (!warnedAboutMissingGetChildContext[componentName]) { + warnedAboutMissingGetChildContext[componentName] = true; - currentQueue.lastBaseUpdate = lastPendingUpdate; + error( + "%s.childContextTypes is specified but there is no getChildContext() method " + + "on the instance. You can either define getChildContext() on %s or remove " + + "childContextTypes from it.", + componentName, + componentName + ); + } } + + return parentContext; } - } // These values may change as we process the queue. - if (firstBaseUpdate !== null) { - // Iterate through the list of updates to compute the result. - var newState = queue.baseState; // TODO: Don't need to accumulate this. Instead, we can remove renderLanes - // from the original lanes. + var childContext = instance.getChildContext(); - var newLanes = NoLanes; - var newBaseState = null; - var newFirstBaseUpdate = null; - var newLastBaseUpdate = null; - var update = firstBaseUpdate; - - do { - // An extra OffscreenLane bit is added to updates that were made to - // a hidden tree, so that we can distinguish them from updates that were - // already there when the tree was hidden. - var updateLane = removeLanes(update.lane, OffscreenLane); - var isHiddenUpdate = updateLane !== update.lane; // Check if this update was made while the tree was hidden. If so, then - // it's not a "base" update and we should disregard the extra base lanes - // that were added to renderLanes when we entered the Offscreen tree. - - var shouldSkipUpdate = isHiddenUpdate - ? !isSubsetOfLanes(getWorkInProgressRootRenderLanes(), updateLane) - : !isSubsetOfLanes(renderLanes, updateLane); + for (var contextKey in childContext) { + if (!(contextKey in childContextTypes)) { + throw new Error( + (getComponentNameFromFiber(fiber) || "Unknown") + + '.getChildContext(): key "' + + contextKey + + '" is not defined in childContextTypes.' + ); + } + } - if (shouldSkipUpdate) { - // Priority is insufficient. Skip this update. If this is the first - // skipped update, the previous update/state is the new base - // update/state. - var clone = { - lane: updateLane, - tag: update.tag, - payload: update.payload, - callback: update.callback, - next: null - }; + { + var name = getComponentNameFromFiber(fiber) || "Unknown"; + checkPropTypes(childContextTypes, childContext, "child context", name); + } - if (newLastBaseUpdate === null) { - newFirstBaseUpdate = newLastBaseUpdate = clone; - newBaseState = newState; - } else { - newLastBaseUpdate = newLastBaseUpdate.next = clone; - } // Update the remaining priority in the queue. + return assign({}, parentContext, childContext); + } +} - newLanes = mergeLanes(newLanes, updateLane); - } else { - // This update does have sufficient priority. - if (newLastBaseUpdate !== null) { - var _clone = { - // This update is going to be committed so we never want uncommit - // it. Using NoLane works because 0 is a subset of all bitmasks, so - // this will never be skipped by the check above. - lane: NoLane, - tag: update.tag, - payload: update.payload, - // When this update is rebased, we should not fire its - // callback again. - callback: null, - next: null - }; - newLastBaseUpdate = newLastBaseUpdate.next = _clone; - } // Process this update. +function pushContextProvider(workInProgress) { + { + var instance = workInProgress.stateNode; // We push the context as early as possible to ensure stack integrity. + // If the instance does not exist yet, we will push null at first, + // and replace it on the stack later when invalidating the context. - newState = getStateFromUpdate( - workInProgress, - queue, - update, - newState, - props, - instance - ); - var callback = update.callback; + var memoizedMergedChildContext = + (instance && instance.__reactInternalMemoizedMergedChildContext) || + emptyContextObject; // Remember the parent context so we can merge with it later. + // Inherit the parent's did-perform-work value to avoid inadvertently blocking updates. - if (callback !== null) { - workInProgress.flags |= Callback; + previousContext = contextStackCursor$1.current; + push(contextStackCursor$1, memoizedMergedChildContext, workInProgress); + push( + didPerformWorkStackCursor, + didPerformWorkStackCursor.current, + workInProgress + ); + return true; + } +} - if (isHiddenUpdate) { - workInProgress.flags |= Visibility; - } +function invalidateContextProvider(workInProgress, type, didChange) { + { + var instance = workInProgress.stateNode; - var callbacks = queue.callbacks; + if (!instance) { + throw new Error( + "Expected to have an instance by this point. " + + "This error is likely caused by a bug in React. Please file an issue." + ); + } - if (callbacks === null) { - queue.callbacks = [callback]; - } else { - callbacks.push(callback); - } - } - } // $FlowFixMe[incompatible-type] we bail out when we get a null + if (didChange) { + // Merge parent and own context. + // Skip this if we're not updating due to sCU. + // This avoids unnecessarily recomputing memoized values. + var mergedContext = processChildContext( + workInProgress, + type, + previousContext + ); + instance.__reactInternalMemoizedMergedChildContext = mergedContext; // Replace the old (or empty) context with the new one. + // It is important to unwind the context in the reverse order. - update = update.next; + pop(didPerformWorkStackCursor, workInProgress); + pop(contextStackCursor$1, workInProgress); // Now push the new context and mark that it has changed. - if (update === null) { - pendingQueue = queue.shared.pending; + push(contextStackCursor$1, mergedContext, workInProgress); + push(didPerformWorkStackCursor, didChange, workInProgress); + } else { + pop(didPerformWorkStackCursor, workInProgress); + push(didPerformWorkStackCursor, didChange, workInProgress); + } + } +} - if (pendingQueue === null) { - break; - } else { - // An update was scheduled from inside a reducer. Add the new - // pending updates to the end of the list and keep processing. - var _lastPendingUpdate = pendingQueue; // Intentionally unsound. Pending updates form a circular list, but we - // unravel them when transferring them to the base queue. +function findCurrentUnmaskedContext(fiber) { + { + // Currently this is only used with renderSubtreeIntoContainer; not sure if it + // makes sense elsewhere + if (!isFiberMounted(fiber) || fiber.tag !== ClassComponent) { + throw new Error( + "Expected subtree parent to be a mounted class component. " + + "This error is likely caused by a bug in React. Please file an issue." + ); + } - var _firstPendingUpdate = _lastPendingUpdate.next; - _lastPendingUpdate.next = null; - update = _firstPendingUpdate; - queue.lastBaseUpdate = _lastPendingUpdate; - queue.shared.pending = null; - } - } - } while (true); + var node = fiber; - if (newLastBaseUpdate === null) { - newBaseState = newState; - } + do { + switch (node.tag) { + case HostRoot: + return node.stateNode.context; - queue.baseState = newBaseState; - queue.firstBaseUpdate = newFirstBaseUpdate; - queue.lastBaseUpdate = newLastBaseUpdate; + case ClassComponent: { + var Component = node.type; - if (firstBaseUpdate === null) { - // `queue.lanes` is used for entangling transitions. We can set it back to - // zero once the queue is empty. - queue.shared.lanes = NoLanes; - } // Set the remaining expiration time to be whatever is remaining in the queue. - // This should be fine because the only two other things that contribute to - // expiration time are props and context. We're already in the middle of the - // begin phase by the time we start processing the queue, so we've already - // dealt with the props. Context in components that specify - // shouldComponentUpdate is tricky; but we'll have to account for - // that regardless. + if (isContextProvider(Component)) { + return node.stateNode.__reactInternalMemoizedMergedChildContext; + } - markSkippedUpdateLanes(newLanes); - workInProgress.lanes = newLanes; - workInProgress.memoizedState = newState; - } + break; + } + } // $FlowFixMe[incompatible-type] we bail out when we get a null - { - currentlyProcessingQueue = null; - } -} + node = node.return; + } while (node !== null); -function callCallback(callback, context) { - if (typeof callback !== "function") { throw new Error( - "Invalid argument passed as callback. Expected a function. Instead " + - ("received: " + callback) + "Found unexpected detached subtree parent. " + + "This error is likely caused by a bug in React. Please file an issue." ); } - - callback.call(context); } -function resetHasForceUpdateBeforeProcessing() { - hasForceUpdate = false; +var LegacyRoot = 0; +var ConcurrentRoot = 1; + +// We use the existence of the state object as an indicator that the component +// is hidden. +var OffscreenVisible = + /* */ + 1; +var OffscreenDetached = + /* */ + 2; +var OffscreenPassiveEffectsConnected = + /* */ + 4; +function isOffscreenManual(offscreenFiber) { + return ( + offscreenFiber.memoizedProps !== null && + offscreenFiber.memoizedProps.mode === "manual" + ); } -function checkHasForceUpdateAfterProcessing() { - return hasForceUpdate; + +/** + * inlined Object.is polyfill to avoid requiring consumers ship their own + * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is + */ +function is(x, y) { + return ( + (x === y && (x !== 0 || 1 / x === 1 / y)) || (x !== x && y !== y) // eslint-disable-line no-self-compare + ); } -function deferHiddenCallbacks(updateQueue) { - // When an update finishes on a hidden component, its callback should not - // be fired until/unless the component is made visible again. Stash the - // callback on the shared queue object so it can be fired later. - var newHiddenCallbacks = updateQueue.callbacks; - if (newHiddenCallbacks !== null) { - var existingHiddenCallbacks = updateQueue.shared.hiddenCallbacks; +var objectIs = typeof Object.is === "function" ? Object.is : is; // $FlowFixMe[method-unbinding] - if (existingHiddenCallbacks === null) { - updateQueue.shared.hiddenCallbacks = newHiddenCallbacks; - } else { - updateQueue.shared.hiddenCallbacks = - existingHiddenCallbacks.concat(newHiddenCallbacks); - } +var syncQueue = null; +var includesLegacySyncCallbacks = false; +var isFlushingSyncQueue = false; +function scheduleSyncCallback(callback) { + // Push this callback into an internal queue. We'll flush these either in + // the next tick, or earlier if something calls `flushSyncCallbackQueue`. + if (syncQueue === null) { + syncQueue = [callback]; + } else { + // Push onto existing queue. Don't need to schedule a callback because + // we already scheduled one when we created the queue. + syncQueue.push(callback); } } -function commitHiddenCallbacks(updateQueue, context) { - // This component is switching from hidden -> visible. Commit any callbacks - // that were previously deferred. - var hiddenCallbacks = updateQueue.shared.hiddenCallbacks; - - if (hiddenCallbacks !== null) { - updateQueue.shared.hiddenCallbacks = null; - - for (var i = 0; i < hiddenCallbacks.length; i++) { - var callback = hiddenCallbacks[i]; - callCallback(callback, context); - } +function scheduleLegacySyncCallback(callback) { + includesLegacySyncCallbacks = true; + scheduleSyncCallback(callback); +} +function flushSyncCallbacksOnlyInLegacyMode() { + // Only flushes the queue if there's a legacy sync callback scheduled. + // TODO: There's only a single type of callback: performSyncOnWorkOnRoot. So + // it might make more sense for the queue to be a list of roots instead of a + // list of generic callbacks. Then we can have two: one for legacy roots, one + // for concurrent roots. And this method would only flush the legacy ones. + if (includesLegacySyncCallbacks) { + flushSyncCallbacks(); } } -function commitCallbacks(updateQueue, context) { - var callbacks = updateQueue.callbacks; +function flushSyncCallbacks() { + if (!isFlushingSyncQueue && syncQueue !== null) { + // Prevent re-entrance. + isFlushingSyncQueue = true; // Set the event priority to discrete + // TODO: Is this necessary anymore? The only user code that runs in this + // queue is in the render or commit phases, which already set the + // event priority. Should be able to remove. - if (callbacks !== null) { - updateQueue.callbacks = null; + var previousUpdatePriority = getCurrentUpdatePriority(); + setCurrentUpdatePriority(DiscreteEventPriority); + var errors = null; + var queue = syncQueue; // $FlowFixMe[incompatible-use] found when upgrading Flow - for (var i = 0; i < callbacks.length; i++) { - var callback = callbacks[i]; - callCallback(callback, context); + for (var i = 0; i < queue.length; i++) { + // $FlowFixMe[incompatible-use] found when upgrading Flow + var callback = queue[i]; + + try { + do { + var isSync = true; // $FlowFixMe[incompatible-type] we bail out when we get a null + + callback = callback(isSync); + } while (callback !== null); + } catch (error) { + // Collect errors so we can rethrow them at the end + if (errors === null) { + errors = [error]; + } else { + errors.push(error); + } + } } - } -} -/** - * Performs equality by iterating through keys on an object and returning false - * when any key has values which are not strictly equal between the arguments. - * Returns true when the values of all keys are strictly equal. - */ + syncQueue = null; + includesLegacySyncCallbacks = false; + setCurrentUpdatePriority(previousUpdatePriority); + isFlushingSyncQueue = false; -function shallowEqual(objA, objB) { - if (objectIs(objA, objB)) { - return true; - } + if (errors !== null) { + if (errors.length > 1) { + if (typeof AggregateError === "function") { + // eslint-disable-next-line no-undef + throw new AggregateError(errors); + } else { + for (var _i = 1; _i < errors.length; _i++) { + scheduleCallback$1( + ImmediatePriority, + throwError.bind(null, errors[_i]) + ); + } - if ( - typeof objA !== "object" || - objA === null || - typeof objB !== "object" || - objB === null - ) { - return false; + var firstError = errors[0]; + throw firstError; + } + } else { + var error = errors[0]; + throw error; + } + } } - var keysA = Object.keys(objA); - var keysB = Object.keys(objB); + return null; +} - if (keysA.length !== keysB.length) { - return false; - } // Test for A's keys different from B. +function throwError(error) { + throw error; +} - for (var i = 0; i < keysA.length; i++) { - var currentKey = keysA[i]; +// This is imported by the event replaying implementation in React DOM. It's +// in a separate file to break a circular dependency between the renderer and +// the reconciler. +function isRootDehydrated(root) { + var currentState = root.current.memoizedState; + return currentState.isDehydrated; +} - if ( - !hasOwnProperty.call(objB, currentKey) || - !objectIs(objA[currentKey], objB[currentKey]) - ) { - return false; +var contextStackCursor = createCursor(null); +var contextFiberStackCursor = createCursor(null); +var rootInstanceStackCursor = createCursor(null); + +function requiredContext(c) { + { + if (c === null) { + error( + "Expected host context to exist. This error is likely caused by a bug " + + "in React. Please file an issue." + ); } } - return true; + return c; } -function describeFiber(fiber) { - var owner = fiber._debugOwner ? fiber._debugOwner.type : null; - var source = fiber._debugSource; +function getRootHostContainer() { + var rootInstance = requiredContext(rootInstanceStackCursor.current); + return rootInstance; +} - switch (fiber.tag) { - case HostHoistable: - case HostSingleton: - case HostComponent: - return describeBuiltInComponentFrame(fiber.type, source, owner); +function pushHostContainer(fiber, nextRootInstance) { + // Push current root instance onto the stack; + // This allows us to reset root when portals are popped. + push(rootInstanceStackCursor, nextRootInstance, fiber); // Track the context and the Fiber that provided it. + // This enables us to pop only Fibers that provide unique contexts. - case LazyComponent: - return describeBuiltInComponentFrame("Lazy", source, owner); + push(contextFiberStackCursor, fiber, fiber); // Finally, we need to push the host context to the stack. + // However, we can't just call getRootHostContext() and push it because + // we'd have a different number of entries on the stack depending on + // whether getRootHostContext() throws somewhere in renderer code or not. + // So we push an empty value first. This lets us safely unwind on errors. - case SuspenseComponent: - return describeBuiltInComponentFrame("Suspense", source, owner); + push(contextStackCursor, null, fiber); + var nextRootContext = getRootHostContext(); // Now that we know this function doesn't throw, replace it. - case SuspenseListComponent: - return describeBuiltInComponentFrame("SuspenseList", source, owner); + pop(contextStackCursor, fiber); + push(contextStackCursor, nextRootContext, fiber); +} - case FunctionComponent: - case IndeterminateComponent: - case SimpleMemoComponent: - return describeFunctionComponentFrame(fiber.type, source, owner); +function popHostContainer(fiber) { + pop(contextStackCursor, fiber); + pop(contextFiberStackCursor, fiber); + pop(rootInstanceStackCursor, fiber); +} - case ForwardRef: - return describeFunctionComponentFrame(fiber.type.render, source, owner); +function getHostContext() { + var context = requiredContext(contextStackCursor.current); + return context; +} - case ClassComponent: - return describeClassComponentFrame(fiber.type, source, owner); +function pushHostContext(fiber) { + var context = requiredContext(contextStackCursor.current); + var nextContext = getChildHostContext(context, fiber.type); // Don't push this Fiber's context unless it's unique. - default: - return ""; - } + if (context === nextContext) { + return; + } // Track the context and the Fiber that provided it. + // This enables us to pop only Fibers that provide unique contexts. + + push(contextFiberStackCursor, fiber, fiber); + push(contextStackCursor, nextContext, fiber); } -function getStackByFiberInDevAndProd(workInProgress) { - try { - var info = ""; - var node = workInProgress; +function popHostContext(fiber) { + // Do not pop unless this Fiber provided the current context. + // pushHostContext() only pushes Fibers that provide unique contexts. + if (contextFiberStackCursor.current !== fiber) { + return; + } - do { - info += describeFiber(node); // $FlowFixMe[incompatible-type] we bail out when we get a null + pop(contextStackCursor, fiber); + pop(contextFiberStackCursor, fiber); +} - node = node.return; - } while (node); +var isHydrating = false; // This flag allows for warning supression when we expect there to be mismatches +// due to earlier mismatches or a suspended fiber. - return info; - } catch (x) { - return "\nError generating stack: " + x.message + "\n" + x.stack; +var didSuspendOrErrorDEV = false; // Hydration errors that were thrown inside this boundary + +var hydrationErrors = null; +function didSuspendOrErrorWhileHydratingDEV() { + { + return didSuspendOrErrorDEV; } } -var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame; -var current = null; -var isRendering = false; -function getCurrentFiberOwnerNameInDevOrNull() { +function prepareToHydrateHostInstance(fiber, hostContext) { { - if (current === null) { - return null; - } - - var owner = current._debugOwner; - - if (owner !== null && typeof owner !== "undefined") { - return getComponentNameFromFiber(owner); - } + throw new Error( + "Expected prepareToHydrateHostInstance() to never be called. " + + "This error is likely caused by a bug in React. Please file an issue." + ); } - - return null; } -function getCurrentFiberStackInDev() { +function prepareToHydrateHostTextInstance(fiber) { { - if (current === null) { - return ""; - } // Safe because if current fiber exists, we are reconciling, - // and it is guaranteed to be the work-in-progress version. - - return getStackByFiberInDevAndProd(current); + throw new Error( + "Expected prepareToHydrateHostTextInstance() to never be called. " + + "This error is likely caused by a bug in React. Please file an issue." + ); } } -function resetCurrentFiber() { +function prepareToHydrateHostSuspenseInstance(fiber) { { - ReactDebugCurrentFrame.getCurrentStack = null; - current = null; - isRendering = false; + throw new Error( + "Expected prepareToHydrateHostSuspenseInstance() to never be called. " + + "This error is likely caused by a bug in React. Please file an issue." + ); } } -function setCurrentFiber(fiber) { + +function popHydrationState(fiber) { { - ReactDebugCurrentFrame.getCurrentStack = - fiber === null ? null : getCurrentFiberStackInDev; - current = fiber; - isRendering = false; + return false; } } -function getCurrentFiber() { - { - return current; + +function upgradeHydrationErrorsToRecoverable() { + if (hydrationErrors !== null) { + // Successfully completed a forced client render. The errors that occurred + // during the hydration attempt are now recovered. We will log them in + // commit phase, once the entire tree has finished. + queueRecoverableErrors(hydrationErrors); + hydrationErrors = null; } } -function setIsRendering(rendering) { - { - isRendering = rendering; + +function getIsHydrating() { + return isHydrating; +} + +function queueHydrationError(error) { + if (hydrationErrors === null) { + hydrationErrors = [error]; + } else { + hydrationErrors.push(error); } } -var ReactStrictModeWarnings = { - recordUnsafeLifecycleWarnings: function (fiber, instance) {}, - flushPendingUnsafeLifecycleWarnings: function () {}, - recordLegacyContextWarning: function (fiber, instance) {}, - flushLegacyContextWarning: function () {}, - discardPendingWarnings: function () {} -}; +// we wait until the current render is over (either finished or interrupted) +// before adding it to the fiber/hook queue. Push to this array so we can +// access the queue, fiber, update, et al later. -{ - var findStrictRoot = function (fiber) { - var maybeStrictRoot = null; - var node = fiber; +var concurrentQueues = []; +var concurrentQueuesIndex = 0; +var concurrentlyUpdatedLanes = NoLanes; +function finishQueueingConcurrentUpdates() { + var endIndex = concurrentQueuesIndex; + concurrentQueuesIndex = 0; + concurrentlyUpdatedLanes = NoLanes; + var i = 0; - while (node !== null) { - if (node.mode & StrictLegacyMode) { - maybeStrictRoot = node; + while (i < endIndex) { + var fiber = concurrentQueues[i]; + concurrentQueues[i++] = null; + var queue = concurrentQueues[i]; + concurrentQueues[i++] = null; + var update = concurrentQueues[i]; + concurrentQueues[i++] = null; + var lane = concurrentQueues[i]; + concurrentQueues[i++] = null; + + if (queue !== null && update !== null) { + var pending = queue.pending; + + if (pending === null) { + // This is the first update. Create a circular list. + update.next = update; + } else { + update.next = pending.next; + pending.next = update; } - node = node.return; + queue.pending = update; } - return maybeStrictRoot; - }; - - var setToSortedString = function (set) { - var array = []; - set.forEach(function (value) { - array.push(value); - }); - return array.sort().join(", "); - }; + if (lane !== NoLane) { + markUpdateLaneFromFiberToRoot(fiber, update, lane); + } + } +} +function getConcurrentlyUpdatedLanes() { + return concurrentlyUpdatedLanes; +} - var pendingComponentWillMountWarnings = []; - var pendingUNSAFE_ComponentWillMountWarnings = []; - var pendingComponentWillReceivePropsWarnings = []; - var pendingUNSAFE_ComponentWillReceivePropsWarnings = []; - var pendingComponentWillUpdateWarnings = []; - var pendingUNSAFE_ComponentWillUpdateWarnings = []; // Tracks components we have already warned about. +function enqueueUpdate$1(fiber, queue, update, lane) { + // Don't update the `childLanes` on the return path yet. If we already in + // the middle of rendering, wait until after it has completed. + concurrentQueues[concurrentQueuesIndex++] = fiber; + concurrentQueues[concurrentQueuesIndex++] = queue; + concurrentQueues[concurrentQueuesIndex++] = update; + concurrentQueues[concurrentQueuesIndex++] = lane; + concurrentlyUpdatedLanes = mergeLanes(concurrentlyUpdatedLanes, lane); // The fiber's `lane` field is used in some places to check if any work is + // scheduled, to perform an eager bailout, so we need to update it immediately. + // TODO: We should probably move this to the "shared" queue instead. - var didWarnAboutUnsafeLifecycles = new Set(); + fiber.lanes = mergeLanes(fiber.lanes, lane); + var alternate = fiber.alternate; - ReactStrictModeWarnings.recordUnsafeLifecycleWarnings = function ( - fiber, - instance - ) { - // Dedupe strategy: Warn once per component. - if (didWarnAboutUnsafeLifecycles.has(fiber.type)) { - return; - } + if (alternate !== null) { + alternate.lanes = mergeLanes(alternate.lanes, lane); + } +} - if ( - typeof instance.componentWillMount === "function" && // Don't warn about react-lifecycles-compat polyfilled components. - instance.componentWillMount.__suppressDeprecationWarning !== true - ) { - pendingComponentWillMountWarnings.push(fiber); - } +function enqueueConcurrentHookUpdate(fiber, queue, update, lane) { + var concurrentQueue = queue; + var concurrentUpdate = update; + enqueueUpdate$1(fiber, concurrentQueue, concurrentUpdate, lane); + return getRootForUpdatedFiber(fiber); +} +function enqueueConcurrentHookUpdateAndEagerlyBailout(fiber, queue, update) { + // This function is used to queue an update that doesn't need a rerender. The + // only reason we queue it is in case there's a subsequent higher priority + // update that causes it to be rebased. + var lane = NoLane; + var concurrentQueue = queue; + var concurrentUpdate = update; + enqueueUpdate$1(fiber, concurrentQueue, concurrentUpdate, lane); // Usually we can rely on the upcoming render phase to process the concurrent + // queue. However, since this is a bail out, we're not scheduling any work + // here. So the update we just queued will leak until something else happens + // to schedule work (if ever). + // + // Check if we're currently in the middle of rendering a tree, and if not, + // process the queue immediately to prevent a leak. - if ( - fiber.mode & StrictLegacyMode && - typeof instance.UNSAFE_componentWillMount === "function" - ) { - pendingUNSAFE_ComponentWillMountWarnings.push(fiber); - } + var isConcurrentlyRendering = getWorkInProgressRoot() !== null; - if ( - typeof instance.componentWillReceiveProps === "function" && - instance.componentWillReceiveProps.__suppressDeprecationWarning !== true - ) { - pendingComponentWillReceivePropsWarnings.push(fiber); - } + if (!isConcurrentlyRendering) { + finishQueueingConcurrentUpdates(); + } +} +function enqueueConcurrentClassUpdate(fiber, queue, update, lane) { + var concurrentQueue = queue; + var concurrentUpdate = update; + enqueueUpdate$1(fiber, concurrentQueue, concurrentUpdate, lane); + return getRootForUpdatedFiber(fiber); +} +function enqueueConcurrentRenderForLane(fiber, lane) { + enqueueUpdate$1(fiber, null, null, lane); + return getRootForUpdatedFiber(fiber); +} // Calling this function outside this module should only be done for backwards +// compatibility and should always be accompanied by a warning. - if ( - fiber.mode & StrictLegacyMode && - typeof instance.UNSAFE_componentWillReceiveProps === "function" - ) { - pendingUNSAFE_ComponentWillReceivePropsWarnings.push(fiber); - } +function unsafe_markUpdateLaneFromFiberToRoot(sourceFiber, lane) { + // NOTE: For Hyrum's Law reasons, if an infinite update loop is detected, it + // should throw before `markUpdateLaneFromFiberToRoot` is called. But this is + // undefined behavior and we can change it if we need to; it just so happens + // that, at the time of this writing, there's an internal product test that + // happens to rely on this. + var root = getRootForUpdatedFiber(sourceFiber); + markUpdateLaneFromFiberToRoot(sourceFiber, null, lane); + return root; +} - if ( - typeof instance.componentWillUpdate === "function" && - instance.componentWillUpdate.__suppressDeprecationWarning !== true - ) { - pendingComponentWillUpdateWarnings.push(fiber); - } +function markUpdateLaneFromFiberToRoot(sourceFiber, update, lane) { + // Update the source fiber's lanes + sourceFiber.lanes = mergeLanes(sourceFiber.lanes, lane); + var alternate = sourceFiber.alternate; - if ( - fiber.mode & StrictLegacyMode && - typeof instance.UNSAFE_componentWillUpdate === "function" - ) { - pendingUNSAFE_ComponentWillUpdateWarnings.push(fiber); - } - }; + if (alternate !== null) { + alternate.lanes = mergeLanes(alternate.lanes, lane); + } // Walk the parent path to the root and update the child lanes. - ReactStrictModeWarnings.flushPendingUnsafeLifecycleWarnings = function () { - // We do an initial pass to gather component names - var componentWillMountUniqueNames = new Set(); + var isHidden = false; + var parent = sourceFiber.return; + var node = sourceFiber; - if (pendingComponentWillMountWarnings.length > 0) { - pendingComponentWillMountWarnings.forEach(function (fiber) { - componentWillMountUniqueNames.add( - getComponentNameFromFiber(fiber) || "Component" - ); - didWarnAboutUnsafeLifecycles.add(fiber.type); - }); - pendingComponentWillMountWarnings = []; + while (parent !== null) { + parent.childLanes = mergeLanes(parent.childLanes, lane); + alternate = parent.alternate; + + if (alternate !== null) { + alternate.childLanes = mergeLanes(alternate.childLanes, lane); } - var UNSAFE_componentWillMountUniqueNames = new Set(); + if (parent.tag === OffscreenComponent) { + // Check if this offscreen boundary is currently hidden. + // + // The instance may be null if the Offscreen parent was unmounted. Usually + // the parent wouldn't be reachable in that case because we disconnect + // fibers from the tree when they are deleted. However, there's a weird + // edge case where setState is called on a fiber that was interrupted + // before it ever mounted. Because it never mounts, it also never gets + // deleted. Because it never gets deleted, its return pointer never gets + // disconnected. Which means it may be attached to a deleted Offscreen + // parent node. (This discovery suggests it may be better for memory usage + // if we don't attach the `return` pointer until the commit phase, though + // in order to do that we'd need some other way to track the return + // pointer during the initial render, like on the stack.) + // + // This case is always accompanied by a warning, but we still need to + // account for it. (There may be other cases that we haven't discovered, + // too.) + var offscreenInstance = parent.stateNode; - if (pendingUNSAFE_ComponentWillMountWarnings.length > 0) { - pendingUNSAFE_ComponentWillMountWarnings.forEach(function (fiber) { - UNSAFE_componentWillMountUniqueNames.add( - getComponentNameFromFiber(fiber) || "Component" - ); - didWarnAboutUnsafeLifecycles.add(fiber.type); - }); - pendingUNSAFE_ComponentWillMountWarnings = []; + if ( + offscreenInstance !== null && + !(offscreenInstance._visibility & OffscreenVisible) + ) { + isHidden = true; + } } - var componentWillReceivePropsUniqueNames = new Set(); + node = parent; + parent = parent.return; + } - if (pendingComponentWillReceivePropsWarnings.length > 0) { - pendingComponentWillReceivePropsWarnings.forEach(function (fiber) { - componentWillReceivePropsUniqueNames.add( - getComponentNameFromFiber(fiber) || "Component" - ); - didWarnAboutUnsafeLifecycles.add(fiber.type); - }); - pendingComponentWillReceivePropsWarnings = []; - } + if (isHidden && update !== null && node.tag === HostRoot) { + var root = node.stateNode; + markHiddenUpdate(root, update, lane); + } +} - var UNSAFE_componentWillReceivePropsUniqueNames = new Set(); +function getRootForUpdatedFiber(sourceFiber) { + // TODO: We will detect and infinite update loop and throw even if this fiber + // has already unmounted. This isn't really necessary but it happens to be the + // current behavior we've used for several release cycles. Consider not + // performing this check if the updated fiber already unmounted, since it's + // not possible for that to cause an infinite update loop. + throwIfInfiniteUpdateLoopDetected(); // When a setState happens, we must ensure the root is scheduled. Because + // update queues do not have a backpointer to the root, the only way to do + // this currently is to walk up the return path. This used to not be a big + // deal because we would have to walk up the return path to set + // the `childLanes`, anyway, but now those two traversals happen at + // different times. + // TODO: Consider adding a `root` backpointer on the update queue. - if (pendingUNSAFE_ComponentWillReceivePropsWarnings.length > 0) { - pendingUNSAFE_ComponentWillReceivePropsWarnings.forEach(function (fiber) { - UNSAFE_componentWillReceivePropsUniqueNames.add( - getComponentNameFromFiber(fiber) || "Component" - ); - didWarnAboutUnsafeLifecycles.add(fiber.type); - }); - pendingUNSAFE_ComponentWillReceivePropsWarnings = []; - } + detectUpdateOnUnmountedFiber(sourceFiber, sourceFiber); + var node = sourceFiber; + var parent = node.return; - var componentWillUpdateUniqueNames = new Set(); + while (parent !== null) { + detectUpdateOnUnmountedFiber(sourceFiber, node); + node = parent; + parent = node.return; + } - if (pendingComponentWillUpdateWarnings.length > 0) { - pendingComponentWillUpdateWarnings.forEach(function (fiber) { - componentWillUpdateUniqueNames.add( - getComponentNameFromFiber(fiber) || "Component" - ); - didWarnAboutUnsafeLifecycles.add(fiber.type); - }); - pendingComponentWillUpdateWarnings = []; + return node.tag === HostRoot ? node.stateNode : null; +} + +function detectUpdateOnUnmountedFiber(sourceFiber, parent) { + { + var alternate = parent.alternate; + + if ( + alternate === null && + (parent.flags & (Placement | Hydrating)) !== NoFlags$1 + ) { + warnAboutUpdateOnNotYetMountedFiberInDEV(sourceFiber); } + } +} - var UNSAFE_componentWillUpdateUniqueNames = new Set(); +var UpdateState = 0; +var ReplaceState = 1; +var ForceUpdate = 2; +var CaptureUpdate = 3; // Global state that is reset at the beginning of calling `processUpdateQueue`. +// It should only be read right after calling `processUpdateQueue`, via +// `checkHasForceUpdateAfterProcessing`. - if (pendingUNSAFE_ComponentWillUpdateWarnings.length > 0) { - pendingUNSAFE_ComponentWillUpdateWarnings.forEach(function (fiber) { - UNSAFE_componentWillUpdateUniqueNames.add( - getComponentNameFromFiber(fiber) || "Component" - ); - didWarnAboutUnsafeLifecycles.add(fiber.type); - }); - pendingUNSAFE_ComponentWillUpdateWarnings = []; - } // Finally, we flush all the warnings - // UNSAFE_ ones before the deprecated ones, since they'll be 'louder' +var hasForceUpdate = false; +var didWarnUpdateInsideUpdate; +var currentlyProcessingQueue; - if (UNSAFE_componentWillMountUniqueNames.size > 0) { - var sortedNames = setToSortedString(UNSAFE_componentWillMountUniqueNames); +{ + didWarnUpdateInsideUpdate = false; + currentlyProcessingQueue = null; +} - error( - "Using UNSAFE_componentWillMount in strict mode is not recommended and may indicate bugs in your code. " + - "See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n" + - "* Move code with side effects to componentDidMount, and set initial state in the constructor.\n" + - "\nPlease update the following components: %s", - sortedNames - ); - } +function initializeUpdateQueue(fiber) { + var queue = { + baseState: fiber.memoizedState, + firstBaseUpdate: null, + lastBaseUpdate: null, + shared: { + pending: null, + lanes: NoLanes, + hiddenCallbacks: null + }, + callbacks: null + }; + fiber.updateQueue = queue; +} +function cloneUpdateQueue(current, workInProgress) { + // Clone the update queue from current. Unless it's already a clone. + var queue = workInProgress.updateQueue; + var currentQueue = current.updateQueue; - if (UNSAFE_componentWillReceivePropsUniqueNames.size > 0) { - var _sortedNames = setToSortedString( - UNSAFE_componentWillReceivePropsUniqueNames - ); + if (queue === currentQueue) { + var clone = { + baseState: currentQueue.baseState, + firstBaseUpdate: currentQueue.firstBaseUpdate, + lastBaseUpdate: currentQueue.lastBaseUpdate, + shared: currentQueue.shared, + callbacks: null + }; + workInProgress.updateQueue = clone; + } +} +function createUpdate(lane) { + var update = { + lane: lane, + tag: UpdateState, + payload: null, + callback: null, + next: null + }; + return update; +} +function enqueueUpdate(fiber, update, lane) { + var updateQueue = fiber.updateQueue; - error( - "Using UNSAFE_componentWillReceiveProps in strict mode is not recommended " + - "and may indicate bugs in your code. " + - "See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n" + - "* Move data fetching code or side effects to componentDidUpdate.\n" + - "* If you're updating state whenever props change, " + - "refactor your code to use memoization techniques or move it to " + - "static getDerivedStateFromProps. Learn more at: https://reactjs.org/link/derived-state\n" + - "\nPlease update the following components: %s", - _sortedNames - ); - } + if (updateQueue === null) { + // Only occurs if the fiber has been unmounted. + return null; + } - if (UNSAFE_componentWillUpdateUniqueNames.size > 0) { - var _sortedNames2 = setToSortedString( - UNSAFE_componentWillUpdateUniqueNames - ); + var sharedQueue = updateQueue.shared; + + { + if ( + currentlyProcessingQueue === sharedQueue && + !didWarnUpdateInsideUpdate + ) { + var componentName = getComponentNameFromFiber(fiber); error( - "Using UNSAFE_componentWillUpdate in strict mode is not recommended " + - "and may indicate bugs in your code. " + - "See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n" + - "* Move data fetching code or side effects to componentDidUpdate.\n" + - "\nPlease update the following components: %s", - _sortedNames2 + "An update (setState, replaceState, or forceUpdate) was scheduled " + + "from inside an update function. Update functions should be pure, " + + "with zero side-effects. Consider using componentDidUpdate or a " + + "callback.\n\nPlease update the following component: %s", + componentName ); - } - - if (componentWillMountUniqueNames.size > 0) { - var _sortedNames3 = setToSortedString(componentWillMountUniqueNames); - warn( - "componentWillMount has been renamed, and is not recommended for use. " + - "See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n" + - "* Move code with side effects to componentDidMount, and set initial state in the constructor.\n" + - "* Rename componentWillMount to UNSAFE_componentWillMount to suppress " + - "this warning in non-strict mode. In React 18.x, only the UNSAFE_ name will work. " + - "To rename all deprecated lifecycles to their new names, you can run " + - "`npx react-codemod rename-unsafe-lifecycles` in your project source folder.\n" + - "\nPlease update the following components: %s", - _sortedNames3 - ); + didWarnUpdateInsideUpdate = true; } + } - if (componentWillReceivePropsUniqueNames.size > 0) { - var _sortedNames4 = setToSortedString( - componentWillReceivePropsUniqueNames - ); + if (isUnsafeClassRenderPhaseUpdate()) { + // This is an unsafe render phase update. Add directly to the update + // queue so we can process it immediately during the current render. + var pending = sharedQueue.pending; - warn( - "componentWillReceiveProps has been renamed, and is not recommended for use. " + - "See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n" + - "* Move data fetching code or side effects to componentDidUpdate.\n" + - "* If you're updating state whenever props change, refactor your " + - "code to use memoization techniques or move it to " + - "static getDerivedStateFromProps. Learn more at: https://reactjs.org/link/derived-state\n" + - "* Rename componentWillReceiveProps to UNSAFE_componentWillReceiveProps to suppress " + - "this warning in non-strict mode. In React 18.x, only the UNSAFE_ name will work. " + - "To rename all deprecated lifecycles to their new names, you can run " + - "`npx react-codemod rename-unsafe-lifecycles` in your project source folder.\n" + - "\nPlease update the following components: %s", - _sortedNames4 - ); + if (pending === null) { + // This is the first update. Create a circular list. + update.next = update; + } else { + update.next = pending.next; + pending.next = update; } - if (componentWillUpdateUniqueNames.size > 0) { - var _sortedNames5 = setToSortedString(componentWillUpdateUniqueNames); + sharedQueue.pending = update; // Update the childLanes even though we're most likely already rendering + // this fiber. This is for backwards compatibility in the case where you + // update a different component during render phase than the one that is + // currently renderings (a pattern that is accompanied by a warning). - warn( - "componentWillUpdate has been renamed, and is not recommended for use. " + - "See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n" + - "* Move data fetching code or side effects to componentDidUpdate.\n" + - "* Rename componentWillUpdate to UNSAFE_componentWillUpdate to suppress " + - "this warning in non-strict mode. In React 18.x, only the UNSAFE_ name will work. " + - "To rename all deprecated lifecycles to their new names, you can run " + - "`npx react-codemod rename-unsafe-lifecycles` in your project source folder.\n" + - "\nPlease update the following components: %s", - _sortedNames5 - ); - } - }; + return unsafe_markUpdateLaneFromFiberToRoot(fiber, lane); + } else { + return enqueueConcurrentClassUpdate(fiber, sharedQueue, update, lane); + } +} +function entangleTransitions(root, fiber, lane) { + var updateQueue = fiber.updateQueue; - var pendingLegacyContextWarning = new Map(); // Tracks components we have already warned about. + if (updateQueue === null) { + // Only occurs if the fiber has been unmounted. + return; + } - var didWarnAboutLegacyContext = new Set(); + var sharedQueue = updateQueue.shared; - ReactStrictModeWarnings.recordLegacyContextWarning = function ( - fiber, - instance - ) { - var strictRoot = findStrictRoot(fiber); + if (isTransitionLane(lane)) { + var queueLanes = sharedQueue.lanes; // If any entangled lanes are no longer pending on the root, then they must + // have finished. We can remove them from the shared queue, which represents + // a superset of the actually pending lanes. In some cases we may entangle + // more than we need to, but that's OK. In fact it's worse if we *don't* + // entangle when we should. - if (strictRoot === null) { - error( - "Expected to find a StrictMode component in a strict mode tree. " + - "This error is likely caused by a bug in React. Please file an issue." - ); + queueLanes = intersectLanes(queueLanes, root.pendingLanes); // Entangle the new transition lane with the other transition lanes. - return; - } // Dedup strategy: Warn once per component. + var newQueueLanes = mergeLanes(queueLanes, lane); + sharedQueue.lanes = newQueueLanes; // Even if queue.lanes already include lane, we don't know for certain if + // the lane finished since the last time we entangled it. So we need to + // entangle it again, just to be sure. - if (didWarnAboutLegacyContext.has(fiber.type)) { - return; - } + markRootEntangled(root, newQueueLanes); + } +} +function enqueueCapturedUpdate(workInProgress, capturedUpdate) { + // Captured updates are updates that are thrown by a child during the render + // phase. They should be discarded if the render is aborted. Therefore, + // we should only put them on the work-in-progress queue, not the current one. + var queue = workInProgress.updateQueue; // Check if the work-in-progress queue is a clone. - var warningsForRoot = pendingLegacyContextWarning.get(strictRoot); + var current = workInProgress.alternate; - if ( - fiber.type.contextTypes != null || - fiber.type.childContextTypes != null || - (instance !== null && typeof instance.getChildContext === "function") - ) { - if (warningsForRoot === undefined) { - warningsForRoot = []; - pendingLegacyContextWarning.set(strictRoot, warningsForRoot); - } + if (current !== null) { + var currentQueue = current.updateQueue; - warningsForRoot.push(fiber); - } - }; + if (queue === currentQueue) { + // The work-in-progress queue is the same as current. This happens when + // we bail out on a parent fiber that then captures an error thrown by + // a child. Since we want to append the update only to the work-in + // -progress queue, we need to clone the updates. We usually clone during + // processUpdateQueue, but that didn't happen in this case because we + // skipped over the parent when we bailed out. + var newFirst = null; + var newLast = null; + var firstBaseUpdate = queue.firstBaseUpdate; - ReactStrictModeWarnings.flushLegacyContextWarning = function () { - pendingLegacyContextWarning.forEach(function (fiberArray, strictRoot) { - if (fiberArray.length === 0) { - return; - } + if (firstBaseUpdate !== null) { + // Loop through the updates and clone them. + var update = firstBaseUpdate; - var firstFiber = fiberArray[0]; - var uniqueNames = new Set(); - fiberArray.forEach(function (fiber) { - uniqueNames.add(getComponentNameFromFiber(fiber) || "Component"); - didWarnAboutLegacyContext.add(fiber.type); - }); - var sortedNames = setToSortedString(uniqueNames); + do { + var clone = { + lane: update.lane, + tag: update.tag, + payload: update.payload, + // When this update is rebased, we should not fire its + // callback again. + callback: null, + next: null + }; - try { - setCurrentFiber(firstFiber); + if (newLast === null) { + newFirst = newLast = clone; + } else { + newLast.next = clone; + newLast = clone; + } // $FlowFixMe[incompatible-type] we bail out when we get a null - error( - "Legacy context API has been detected within a strict-mode tree." + - "\n\nThe old API will be supported in all 16.x releases, but applications " + - "using it should migrate to the new version." + - "\n\nPlease update the following components: %s" + - "\n\nLearn more about this warning here: https://reactjs.org/link/legacy-context", - sortedNames - ); - } finally { - resetCurrentFiber(); + update = update.next; + } while (update !== null); // Append the captured update the end of the cloned list. + + if (newLast === null) { + newFirst = newLast = capturedUpdate; + } else { + newLast.next = capturedUpdate; + newLast = capturedUpdate; + } + } else { + // There are no base updates. + newFirst = newLast = capturedUpdate; } - }); - }; - ReactStrictModeWarnings.discardPendingWarnings = function () { - pendingComponentWillMountWarnings = []; - pendingUNSAFE_ComponentWillMountWarnings = []; - pendingComponentWillReceivePropsWarnings = []; - pendingUNSAFE_ComponentWillReceivePropsWarnings = []; - pendingComponentWillUpdateWarnings = []; - pendingUNSAFE_ComponentWillUpdateWarnings = []; - pendingLegacyContextWarning = new Map(); - }; -} + queue = { + baseState: currentQueue.baseState, + firstBaseUpdate: newFirst, + lastBaseUpdate: newLast, + shared: currentQueue.shared, + callbacks: currentQueue.callbacks + }; + workInProgress.updateQueue = queue; + return; + } + } // Append the update to the end of the list. -/* - * The `'' + value` pattern (used in perf-sensitive code) throws for Symbol - * and Temporal.* types. See https://github.com/facebook/react/pull/22064. - * - * The functions in this module will throw an easier-to-understand, - * easier-to-debug exception with a clear errors message message explaining the - * problem. (Instead of a confusing exception thrown inside the implementation - * of the `value` object). - */ -// $FlowFixMe only called in DEV, so void return is not possible. -function typeName(value) { - { - // toStringTag is needed for namespaced types like Temporal.Instant - var hasToStringTag = typeof Symbol === "function" && Symbol.toStringTag; - var type = - (hasToStringTag && value[Symbol.toStringTag]) || - value.constructor.name || - "Object"; // $FlowFixMe + var lastBaseUpdate = queue.lastBaseUpdate; - return type; + if (lastBaseUpdate === null) { + queue.firstBaseUpdate = capturedUpdate; + } else { + lastBaseUpdate.next = capturedUpdate; } -} // $FlowFixMe only called in DEV, so void return is not possible. -function willCoercionThrow(value) { - { - try { - testStringCoercion(value); - return false; - } catch (e) { - return true; - } - } + queue.lastBaseUpdate = capturedUpdate; } -function testStringCoercion(value) { - // If you ended up here by following an exception call stack, here's what's - // happened: you supplied an object or symbol value to React (as a prop, key, - // DOM attribute, CSS property, string ref, etc.) and when React tried to - // coerce it to a string using `'' + value`, an exception was thrown. - // - // The most common types that will cause this exception are `Symbol` instances - // and Temporal objects like `Temporal.Instant`. But any object that has a - // `valueOf` or `[Symbol.toPrimitive]` method that throws will also cause this - // exception. (Library authors do this to prevent users from using built-in - // numeric operators like `+` or comparison operators like `>=` because custom - // methods are needed to perform accurate arithmetic or comparison.) - // - // To fix the problem, coerce this object or symbol value to a string before - // passing it to React. The most reliable way is usually `String(value)`. - // - // To find which value is throwing, check the browser or debugger console. - // Before this exception was thrown, there should be `console.error` output - // that shows the type (Symbol, Temporal.PlainDate, etc.) that caused the - // problem and how that type was used: key, atrribute, input value prop, etc. - // In most cases, this console output also shows the component and its - // ancestor components where the exception happened. - // - // eslint-disable-next-line react-internal/safe-string-coercion - return "" + value; -} -function checkKeyStringCoercion(value) { - { - if (willCoercionThrow(value)) { - error( - "The provided key is an unsupported type %s." + - " This value must be coerced to a string before before using it here.", - typeName(value) - ); - - return testStringCoercion(value); // throw (to help callers find troubleshooting comments) - } - } -} -function checkPropStringCoercion(value, propName) { - { - if (willCoercionThrow(value)) { - error( - "The provided `%s` prop is an unsupported type %s." + - " This value must be coerced to a string before before using it here.", - propName, - typeName(value) - ); - - return testStringCoercion(value); // throw (to help callers find troubleshooting comments) - } - } -} +function getStateFromUpdate( + workInProgress, + queue, + update, + prevState, + nextProps, + instance +) { + switch (update.tag) { + case ReplaceState: { + var payload = update.payload; -var ReactCurrentActQueue$2 = ReactSharedInternals.ReactCurrentActQueue; // An error that is thrown (e.g. by `use`) to trigger Suspense. If we -// detect this is caught by userspace, we'll log a warning in development. + if (typeof payload === "function") { + // Updater function + { + enterDisallowedContextReadInDEV(); + } -var SuspenseException = new Error( - "Suspense Exception: This is not a real error! It's an implementation " + - "detail of `use` to interrupt the current render. You must either " + - "rethrow it immediately, or move the `use` call outside of the " + - "`try/catch` block. Capturing without rethrowing will lead to " + - "unexpected behavior.\n\n" + - "To handle async errors, wrap your component in an error boundary, or " + - "call the promise's `.catch` method and pass the result to `use`" -); -var SuspenseyCommitException = new Error( - "Suspense Exception: This is not a real error, and should not leak into " + - "userspace. If you're seeing this, it's likely a bug in React." -); // This is a noop thenable that we use to trigger a fallback in throwException. -// TODO: It would be better to refactor throwException into multiple functions -// so we can trigger a fallback directly without having to check the type. But -// for now this will do. + var nextState = payload.call(instance, prevState, nextProps); -var noopSuspenseyCommitThenable = { - then: function () {} -}; -function createThenableState() { - // The ThenableState is created the first time a component suspends. If it - // suspends again, we'll reuse the same state. - return []; -} -function isThenableResolved(thenable) { - var status = thenable.status; - return status === "fulfilled" || status === "rejected"; -} + { + if (workInProgress.mode & StrictLegacyMode) { + setIsStrictModeForDevtools(true); -function noop$1() {} + try { + payload.call(instance, prevState, nextProps); + } finally { + setIsStrictModeForDevtools(false); + } + } -function trackUsedThenable(thenableState, thenable, index) { - if (ReactCurrentActQueue$2.current !== null) { - ReactCurrentActQueue$2.didUsePromise = true; - } + exitDisallowedContextReadInDEV(); + } - var previous = thenableState[index]; + return nextState; + } // State object - if (previous === undefined) { - thenableState.push(thenable); - } else { - if (previous !== thenable) { - // Reuse the previous thenable, and drop the new one. We can assume - // they represent the same value, because components are idempotent. - // Avoid an unhandled rejection errors for the Promises that we'll - // intentionally ignore. - thenable.then(noop$1, noop$1); - thenable = previous; + return payload; } - } // We use an expando to track the status and result of a thenable so that we - // can synchronously unwrap the value. Think of this as an extension of the - // Promise API, or a custom interface that is a superset of Thenable. - // - // If the thenable doesn't have a status, set it to "pending" and attach - // a listener that will update its status and result when it resolves. - switch (thenable.status) { - case "fulfilled": { - var fulfilledValue = thenable.value; - return fulfilledValue; + case CaptureUpdate: { + workInProgress.flags = + (workInProgress.flags & ~ShouldCapture) | DidCapture; } + // Intentional fallthrough - case "rejected": { - var rejectedError = thenable.reason; - throw rejectedError; - } + case UpdateState: { + var _payload = update.payload; + var partialState; - default: { - if (typeof thenable.status === "string") { - // Only instrument the thenable if the status if not defined. If - // it's defined, but an unknown value, assume it's been instrumented by - // some custom userspace implementation. We treat it as "pending". - // Attach a dummy listener, to ensure that any lazy initialization can - // happen. Flight lazily parses JSON when the value is actually awaited. - thenable.then(noop$1, noop$1); - } else { - var pendingThenable = thenable; - pendingThenable.status = "pending"; - pendingThenable.then( - function (fulfilledValue) { - if (thenable.status === "pending") { - var fulfilledThenable = thenable; - fulfilledThenable.status = "fulfilled"; - fulfilledThenable.value = fulfilledValue; - } - }, - function (error) { - if (thenable.status === "pending") { - var rejectedThenable = thenable; - rejectedThenable.status = "rejected"; - rejectedThenable.reason = error; + if (typeof _payload === "function") { + // Updater function + { + enterDisallowedContextReadInDEV(); + } + + partialState = _payload.call(instance, prevState, nextProps); + + { + if (workInProgress.mode & StrictLegacyMode) { + setIsStrictModeForDevtools(true); + + try { + _payload.call(instance, prevState, nextProps); + } finally { + setIsStrictModeForDevtools(false); } } - ); - } // Check one more time in case the thenable resolved synchronously. - - switch (thenable.status) { - case "fulfilled": { - var fulfilledThenable = thenable; - return fulfilledThenable.value; - } - case "rejected": { - var rejectedThenable = thenable; - throw rejectedThenable.reason; + exitDisallowedContextReadInDEV(); } - } // Suspend. - // - // Throwing here is an implementation detail that allows us to unwind the - // call stack. But we shouldn't allow it to leak into userspace. Throw an - // opaque placeholder value instead of the actual thenable. If it doesn't - // get captured by the work loop, log a warning, because that means - // something in userspace must have caught it. + } else { + // Partial state object + partialState = _payload; + } - suspendedThenable = thenable; + if (partialState === null || partialState === undefined) { + // Null and undefined are treated as no-ops. + return prevState; + } // Merge the partial state and the previous state. - { - needsToResetSuspendedThenableDEV = true; - } + return assign({}, prevState, partialState); + } - throw SuspenseException; + case ForceUpdate: { + hasForceUpdate = true; + return prevState; } } -} -// passed to the rest of the Suspense implementation — which, for historical -// reasons, expects to receive a thenable. -var suspendedThenable = null; -var needsToResetSuspendedThenableDEV = false; -function getSuspendedThenable() { - // This is called right after `use` suspends by throwing an exception. `use` - // throws an opaque value instead of the thenable itself so that it can't be - // caught in userspace. Then the work loop accesses the actual thenable using - // this function. - if (suspendedThenable === null) { - throw new Error( - "Expected a suspended thenable. This is a bug in React. Please file " + - "an issue." - ); - } + return prevState; +} - var thenable = suspendedThenable; - suspendedThenable = null; +function processUpdateQueue(workInProgress, props, instance, renderLanes) { + // This is always non-null on a ClassComponent or HostRoot + var queue = workInProgress.updateQueue; + hasForceUpdate = false; { - needsToResetSuspendedThenableDEV = false; + currentlyProcessingQueue = queue.shared; } - return thenable; -} -function checkIfUseWrappedInTryCatch() { - { - // This was set right before SuspenseException was thrown, and it should - // have been cleared when the exception was handled. If it wasn't, - // it must have been caught by userspace. - if (needsToResetSuspendedThenableDEV) { - needsToResetSuspendedThenableDEV = false; - return true; - } - } + var firstBaseUpdate = queue.firstBaseUpdate; + var lastBaseUpdate = queue.lastBaseUpdate; // Check if there are pending updates. If so, transfer them to the base queue. - return false; -} + var pendingQueue = queue.shared.pending; -var thenableState$1 = null; -var thenableIndexCounter$1 = 0; -var didWarnAboutMaps; -var didWarnAboutGenerators; -var didWarnAboutStringRefs; -var ownerHasKeyUseWarning; -var ownerHasFunctionTypeWarning; + if (pendingQueue !== null) { + queue.shared.pending = null; // The pending queue is circular. Disconnect the pointer between first + // and last so that it's non-circular. -var warnForMissingKey = function (child, returnFiber) {}; - -{ - didWarnAboutMaps = false; - didWarnAboutGenerators = false; - didWarnAboutStringRefs = {}; - /** - * Warn if there's no key explicitly set on dynamic arrays of children or - * object keys are not valid. This allows us to keep track of children between - * updates. - */ - - ownerHasKeyUseWarning = {}; - ownerHasFunctionTypeWarning = {}; + var lastPendingUpdate = pendingQueue; + var firstPendingUpdate = lastPendingUpdate.next; + lastPendingUpdate.next = null; // Append pending updates to base queue - warnForMissingKey = function (child, returnFiber) { - if (child === null || typeof child !== "object") { - return; + if (lastBaseUpdate === null) { + firstBaseUpdate = firstPendingUpdate; + } else { + lastBaseUpdate.next = firstPendingUpdate; } - if (!child._store || child._store.validated || child.key != null) { - return; - } + lastBaseUpdate = lastPendingUpdate; // If there's a current queue, and it's different from the base queue, then + // we need to transfer the updates to that queue, too. Because the base + // queue is a singly-linked list with no cycles, we can append to both + // lists and take advantage of structural sharing. + // TODO: Pass `current` as argument - if (typeof child._store !== "object") { - throw new Error( - "React Component in warnForMissingKey should have a _store. " + - "This error is likely caused by a bug in React. Please file an issue." - ); - } // $FlowFixMe unable to narrow type from mixed to writable object + var current = workInProgress.alternate; - child._store.validated = true; - var componentName = getComponentNameFromFiber(returnFiber) || "Component"; + if (current !== null) { + // This is always non-null on a ClassComponent or HostRoot + var currentQueue = current.updateQueue; + var currentLastBaseUpdate = currentQueue.lastBaseUpdate; - if (ownerHasKeyUseWarning[componentName]) { - return; - } + if (currentLastBaseUpdate !== lastBaseUpdate) { + if (currentLastBaseUpdate === null) { + currentQueue.firstBaseUpdate = firstPendingUpdate; + } else { + currentLastBaseUpdate.next = firstPendingUpdate; + } - ownerHasKeyUseWarning[componentName] = true; + currentQueue.lastBaseUpdate = lastPendingUpdate; + } + } + } // These values may change as we process the queue. - error( - "Each child in a list should have a unique " + - '"key" prop. See https://reactjs.org/link/warning-keys for ' + - "more information." - ); - }; -} + if (firstBaseUpdate !== null) { + // Iterate through the list of updates to compute the result. + var newState = queue.baseState; // TODO: Don't need to accumulate this. Instead, we can remove renderLanes + // from the original lanes. -function isReactClass(type) { - return type.prototype && type.prototype.isReactComponent; -} + var newLanes = NoLanes; + var newBaseState = null; + var newFirstBaseUpdate = null; + var newLastBaseUpdate = null; + var update = firstBaseUpdate; -function unwrapThenable(thenable) { - var index = thenableIndexCounter$1; - thenableIndexCounter$1 += 1; + do { + // An extra OffscreenLane bit is added to updates that were made to + // a hidden tree, so that we can distinguish them from updates that were + // already there when the tree was hidden. + var updateLane = removeLanes(update.lane, OffscreenLane); + var isHiddenUpdate = updateLane !== update.lane; // Check if this update was made while the tree was hidden. If so, then + // it's not a "base" update and we should disregard the extra base lanes + // that were added to renderLanes when we entered the Offscreen tree. - if (thenableState$1 === null) { - thenableState$1 = createThenableState(); - } + var shouldSkipUpdate = isHiddenUpdate + ? !isSubsetOfLanes(getWorkInProgressRootRenderLanes(), updateLane) + : !isSubsetOfLanes(renderLanes, updateLane); - return trackUsedThenable(thenableState$1, thenable, index); -} + if (shouldSkipUpdate) { + // Priority is insufficient. Skip this update. If this is the first + // skipped update, the previous update/state is the new base + // update/state. + var clone = { + lane: updateLane, + tag: update.tag, + payload: update.payload, + callback: update.callback, + next: null + }; -function coerceRef(returnFiber, current, element) { - var mixedRef = element.ref; + if (newLastBaseUpdate === null) { + newFirstBaseUpdate = newLastBaseUpdate = clone; + newBaseState = newState; + } else { + newLastBaseUpdate = newLastBaseUpdate.next = clone; + } // Update the remaining priority in the queue. - if ( - mixedRef !== null && - typeof mixedRef !== "function" && - typeof mixedRef !== "object" - ) { - { - if ( - // We warn in ReactElement.js if owner and self are equal for string refs - // because these cannot be automatically converted to an arrow function - // using a codemod. Therefore, we don't have to warn about string refs again. - !( - element._owner && - element._self && - element._owner.stateNode !== element._self - ) && // Will already throw with "Function components cannot have string refs" - !(element._owner && element._owner.tag !== ClassComponent) && // Will already warn with "Function components cannot be given refs" - !(typeof element.type === "function" && !isReactClass(element.type)) && // Will already throw with "Element ref was specified as a string (someStringRef) but no owner was set" - element._owner - ) { - var componentName = - getComponentNameFromFiber(returnFiber) || "Component"; + newLanes = mergeLanes(newLanes, updateLane); + } else { + // This update does have sufficient priority. + if (newLastBaseUpdate !== null) { + var _clone = { + // This update is going to be committed so we never want uncommit + // it. Using NoLane works because 0 is a subset of all bitmasks, so + // this will never be skipped by the check above. + lane: NoLane, + tag: update.tag, + payload: update.payload, + // When this update is rebased, we should not fire its + // callback again. + callback: null, + next: null + }; + newLastBaseUpdate = newLastBaseUpdate.next = _clone; + } // Process this update. - if (!didWarnAboutStringRefs[componentName]) { - error( - 'Component "%s" contains the string ref "%s". Support for string refs ' + - "will be removed in a future major release. We recommend using " + - "useRef() or createRef() instead. " + - "Learn more about using refs safely here: " + - "https://reactjs.org/link/strict-mode-string-ref", - componentName, - mixedRef - ); + newState = getStateFromUpdate( + workInProgress, + queue, + update, + newState, + props, + instance + ); + var callback = update.callback; - didWarnAboutStringRefs[componentName] = true; - } - } - } + if (callback !== null) { + workInProgress.flags |= Callback; - if (element._owner) { - var owner = element._owner; - var inst; + if (isHiddenUpdate) { + workInProgress.flags |= Visibility; + } - if (owner) { - var ownerFiber = owner; + var callbacks = queue.callbacks; - if (ownerFiber.tag !== ClassComponent) { - throw new Error( - "Function components cannot have string refs. " + - "We recommend using useRef() instead. " + - "Learn more about using refs safely here: " + - "https://reactjs.org/link/strict-mode-string-ref" - ); + if (callbacks === null) { + queue.callbacks = [callback]; + } else { + callbacks.push(callback); + } } + } // $FlowFixMe[incompatible-type] we bail out when we get a null - inst = ownerFiber.stateNode; - } - - if (!inst) { - throw new Error( - "Missing owner for string ref " + - mixedRef + - ". This error is likely caused by a " + - "bug in React. Please file an issue." - ); - } // Assigning this to a const so Flow knows it won't change in the closure - - var resolvedInst = inst; + update = update.next; - { - checkPropStringCoercion(mixedRef, "ref"); - } + if (update === null) { + pendingQueue = queue.shared.pending; - var stringRef = "" + mixedRef; // Check if previous string ref matches new string ref + if (pendingQueue === null) { + break; + } else { + // An update was scheduled from inside a reducer. Add the new + // pending updates to the end of the list and keep processing. + var _lastPendingUpdate = pendingQueue; // Intentionally unsound. Pending updates form a circular list, but we + // unravel them when transferring them to the base queue. - if ( - current !== null && - current.ref !== null && - typeof current.ref === "function" && - current.ref._stringRef === stringRef - ) { - return current.ref; + var _firstPendingUpdate = _lastPendingUpdate.next; + _lastPendingUpdate.next = null; + update = _firstPendingUpdate; + queue.lastBaseUpdate = _lastPendingUpdate; + queue.shared.pending = null; + } } + } while (true); - var ref = function (value) { - var refs = resolvedInst.refs; + if (newLastBaseUpdate === null) { + newBaseState = newState; + } - if (value === null) { - delete refs[stringRef]; - } else { - refs[stringRef] = value; - } - }; + queue.baseState = newBaseState; + queue.firstBaseUpdate = newFirstBaseUpdate; + queue.lastBaseUpdate = newLastBaseUpdate; - ref._stringRef = stringRef; - return ref; - } else { - if (typeof mixedRef !== "string") { - throw new Error( - "Expected ref to be a function, a string, an object returned by React.createRef(), or null." - ); - } + if (firstBaseUpdate === null) { + // `queue.lanes` is used for entangling transitions. We can set it back to + // zero once the queue is empty. + queue.shared.lanes = NoLanes; + } // Set the remaining expiration time to be whatever is remaining in the queue. + // This should be fine because the only two other things that contribute to + // expiration time are props and context. We're already in the middle of the + // begin phase by the time we start processing the queue, so we've already + // dealt with the props. Context in components that specify + // shouldComponentUpdate is tricky; but we'll have to account for + // that regardless. - if (!element._owner) { - throw new Error( - "Element ref was specified as a string (" + - mixedRef + - ") but no owner was set. This could happen for one of" + - " the following reasons:\n" + - "1. You may be adding a ref to a function component\n" + - "2. You may be adding a ref to a component that was not created inside a component's render method\n" + - "3. You have multiple copies of React loaded\n" + - "See https://reactjs.org/link/refs-must-have-owner for more information." - ); - } - } + markSkippedUpdateLanes(newLanes); + workInProgress.lanes = newLanes; + workInProgress.memoizedState = newState; } - return mixedRef; + { + currentlyProcessingQueue = null; + } } -function throwOnInvalidObjectType(returnFiber, newChild) { - // $FlowFixMe[method-unbinding] - var childString = Object.prototype.toString.call(newChild); - throw new Error( - "Objects are not valid as a React child (found: " + - (childString === "[object Object]" - ? "object with keys {" + Object.keys(newChild).join(", ") + "}" - : childString) + - "). " + - "If you meant to render a collection of children, use an array " + - "instead." - ); -} +function callCallback(callback, context) { + if (typeof callback !== "function") { + throw new Error( + "Invalid argument passed as callback. Expected a function. Instead " + + ("received: " + callback) + ); + } -function warnOnFunctionType(returnFiber) { - { - var componentName = getComponentNameFromFiber(returnFiber) || "Component"; + callback.call(context); +} - if (ownerHasFunctionTypeWarning[componentName]) { - return; - } +function resetHasForceUpdateBeforeProcessing() { + hasForceUpdate = false; +} +function checkHasForceUpdateAfterProcessing() { + return hasForceUpdate; +} +function deferHiddenCallbacks(updateQueue) { + // When an update finishes on a hidden component, its callback should not + // be fired until/unless the component is made visible again. Stash the + // callback on the shared queue object so it can be fired later. + var newHiddenCallbacks = updateQueue.callbacks; - ownerHasFunctionTypeWarning[componentName] = true; + if (newHiddenCallbacks !== null) { + var existingHiddenCallbacks = updateQueue.shared.hiddenCallbacks; - error( - "Functions are not valid as a React child. This may happen if " + - "you return a Component instead of from render. " + - "Or maybe you meant to call this function rather than return it." - ); + if (existingHiddenCallbacks === null) { + updateQueue.shared.hiddenCallbacks = newHiddenCallbacks; + } else { + updateQueue.shared.hiddenCallbacks = + existingHiddenCallbacks.concat(newHiddenCallbacks); + } } } +function commitHiddenCallbacks(updateQueue, context) { + // This component is switching from hidden -> visible. Commit any callbacks + // that were previously deferred. + var hiddenCallbacks = updateQueue.shared.hiddenCallbacks; -function resolveLazy(lazyType) { - var payload = lazyType._payload; - var init = lazyType._init; - return init(payload); -} // This wrapper function exists because I expect to clone the code in each path -// to be able to optimize each path individually by branching early. This needs -// a compiler or we can do it manually. Helpers that don't need this branching -// live outside of this function. + if (hiddenCallbacks !== null) { + updateQueue.shared.hiddenCallbacks = null; -function createChildReconciler(shouldTrackSideEffects) { - function deleteChild(returnFiber, childToDelete) { - if (!shouldTrackSideEffects) { - // Noop. - return; + for (var i = 0; i < hiddenCallbacks.length; i++) { + var callback = hiddenCallbacks[i]; + callCallback(callback, context); } + } +} +function commitCallbacks(updateQueue, context) { + var callbacks = updateQueue.callbacks; - var deletions = returnFiber.deletions; + if (callbacks !== null) { + updateQueue.callbacks = null; - if (deletions === null) { - returnFiber.deletions = [childToDelete]; - returnFiber.flags |= ChildDeletion; - } else { - deletions.push(childToDelete); + for (var i = 0; i < callbacks.length; i++) { + var callback = callbacks[i]; + callCallback(callback, context); } } +} - function deleteRemainingChildren(returnFiber, currentFirstChild) { - if (!shouldTrackSideEffects) { - // Noop. - return null; - } // TODO: For the shouldClone case, this could be micro-optimized a bit by - // assuming that after the first child we've already added everything. - - var childToDelete = currentFirstChild; +/** + * Performs equality by iterating through keys on an object and returning false + * when any key has values which are not strictly equal between the arguments. + * Returns true when the values of all keys are strictly equal. + */ - while (childToDelete !== null) { - deleteChild(returnFiber, childToDelete); - childToDelete = childToDelete.sibling; - } +function shallowEqual(objA, objB) { + if (objectIs(objA, objB)) { + return true; + } - return null; + if ( + typeof objA !== "object" || + objA === null || + typeof objB !== "object" || + objB === null + ) { + return false; } - function mapRemainingChildren(returnFiber, currentFirstChild) { - // Add the remaining children to a temporary map so that we can find them by - // keys quickly. Implicit (null) keys get added to this set with their index - // instead. - var existingChildren = new Map(); - var existingChild = currentFirstChild; + var keysA = Object.keys(objA); + var keysB = Object.keys(objB); - while (existingChild !== null) { - if (existingChild.key !== null) { - existingChildren.set(existingChild.key, existingChild); - } else { - existingChildren.set(existingChild.index, existingChild); - } + if (keysA.length !== keysB.length) { + return false; + } // Test for A's keys different from B. - existingChild = existingChild.sibling; - } + for (var i = 0; i < keysA.length; i++) { + var currentKey = keysA[i]; - return existingChildren; + if ( + !hasOwnProperty.call(objB, currentKey) || + !objectIs(objA[currentKey], objB[currentKey]) + ) { + return false; + } } - function useFiber(fiber, pendingProps) { - // We currently set sibling to null and index to 0 here because it is easy - // to forget to do before returning it. E.g. for the single child case. - var clone = createWorkInProgress(fiber, pendingProps); - clone.index = 0; - clone.sibling = null; - return clone; - } + return true; +} - function placeChild(newFiber, lastPlacedIndex, newIndex) { - newFiber.index = newIndex; +function describeFiber(fiber) { + var owner = fiber._debugOwner ? fiber._debugOwner.type : null; + var source = fiber._debugSource; - if (!shouldTrackSideEffects) { - // During hydration, the useId algorithm needs to know which fibers are - // part of a list of children (arrays, iterators). - newFiber.flags |= Forked; - return lastPlacedIndex; - } + switch (fiber.tag) { + case HostHoistable: + case HostSingleton: + case HostComponent: + return describeBuiltInComponentFrame(fiber.type, source, owner); - var current = newFiber.alternate; + case LazyComponent: + return describeBuiltInComponentFrame("Lazy", source, owner); - if (current !== null) { - var oldIndex = current.index; + case SuspenseComponent: + return describeBuiltInComponentFrame("Suspense", source, owner); - if (oldIndex < lastPlacedIndex) { - // This is a move. - newFiber.flags |= Placement | PlacementDEV; - return lastPlacedIndex; - } else { - // This item can stay in place. - return oldIndex; - } - } else { - // This is an insertion. - newFiber.flags |= Placement | PlacementDEV; - return lastPlacedIndex; - } - } + case SuspenseListComponent: + return describeBuiltInComponentFrame("SuspenseList", source, owner); - function placeSingleChild(newFiber) { - // This is simpler for the single child case. We only need to do a - // placement for inserting new children. - if (shouldTrackSideEffects && newFiber.alternate === null) { - newFiber.flags |= Placement | PlacementDEV; - } + case FunctionComponent: + case IndeterminateComponent: + case SimpleMemoComponent: + return describeFunctionComponentFrame(fiber.type, source, owner); - return newFiber; + case ForwardRef: + return describeFunctionComponentFrame(fiber.type.render, source, owner); + + case ClassComponent: + return describeClassComponentFrame(fiber.type, source, owner); + + default: + return ""; } +} - function updateTextNode(returnFiber, current, textContent, lanes) { - if (current === null || current.tag !== HostText) { - // Insert - var created = createFiberFromText(textContent, returnFiber.mode, lanes); - created.return = returnFiber; - return created; - } else { - // Update - var existing = useFiber(current, textContent); - existing.return = returnFiber; - return existing; - } - } - - function updateElement(returnFiber, current, element, lanes) { - var elementType = element.type; - - if (elementType === REACT_FRAGMENT_TYPE) { - return updateFragment( - returnFiber, - current, - element.props.children, - lanes, - element.key - ); - } - - if (current !== null) { - if ( - current.elementType === elementType || // Keep this check inline so it only runs on the false path: - isCompatibleFamilyForHotReloading(current, element) || // Lazy types should reconcile their resolved type. - // We need to do this after the Hot Reloading check above, - // because hot reloading has different semantics than prod because - // it doesn't resuspend. So we can't let the call below suspend. - (typeof elementType === "object" && - elementType !== null && - elementType.$$typeof === REACT_LAZY_TYPE && - resolveLazy(elementType) === current.type) - ) { - // Move based on index - var existing = useFiber(current, element.props); - existing.ref = coerceRef(returnFiber, current, element); - existing.return = returnFiber; +function getStackByFiberInDevAndProd(workInProgress) { + try { + var info = ""; + var node = workInProgress; - { - existing._debugSource = element._source; - existing._debugOwner = element._owner; - } + do { + info += describeFiber(node); // $FlowFixMe[incompatible-type] we bail out when we get a null - return existing; - } - } // Insert + node = node.return; + } while (node); - var created = createFiberFromElement(element, returnFiber.mode, lanes); - created.ref = coerceRef(returnFiber, current, element); - created.return = returnFiber; - return created; + return info; + } catch (x) { + return "\nError generating stack: " + x.message + "\n" + x.stack; } +} - function updatePortal(returnFiber, current, portal, lanes) { - if ( - current === null || - current.tag !== HostPortal || - current.stateNode.containerInfo !== portal.containerInfo || - current.stateNode.implementation !== portal.implementation - ) { - // Insert - var created = createFiberFromPortal(portal, returnFiber.mode, lanes); - created.return = returnFiber; - return created; - } else { - // Update - var existing = useFiber(current, portal.children || []); - existing.return = returnFiber; - return existing; +var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame; +var current = null; +var isRendering = false; +function getCurrentFiberOwnerNameInDevOrNull() { + { + if (current === null) { + return null; } - } - function updateFragment(returnFiber, current, fragment, lanes, key) { - if (current === null || current.tag !== Fragment) { - // Insert - var created = createFiberFromFragment( - fragment, - returnFiber.mode, - lanes, - key - ); - created.return = returnFiber; - return created; - } else { - // Update - var existing = useFiber(current, fragment); - existing.return = returnFiber; - return existing; - } - } + var owner = current._debugOwner; - function createChild(returnFiber, newChild, lanes) { - if ( - (typeof newChild === "string" && newChild !== "") || - typeof newChild === "number" - ) { - // Text nodes don't have keys. If the previous node is implicitly keyed - // we can continue to replace it without aborting even if it is not a text - // node. - var created = createFiberFromText("" + newChild, returnFiber.mode, lanes); - created.return = returnFiber; - return created; + if (owner !== null && typeof owner !== "undefined") { + return getComponentNameFromFiber(owner); } + } - if (typeof newChild === "object" && newChild !== null) { - switch (newChild.$$typeof) { - case REACT_ELEMENT_TYPE: { - var _created = createFiberFromElement( - newChild, - returnFiber.mode, - lanes - ); - - _created.ref = coerceRef(returnFiber, null, newChild); - _created.return = returnFiber; - return _created; - } - - case REACT_PORTAL_TYPE: { - var _created2 = createFiberFromPortal( - newChild, - returnFiber.mode, - lanes - ); + return null; +} - _created2.return = returnFiber; - return _created2; - } +function getCurrentFiberStackInDev() { + { + if (current === null) { + return ""; + } // Safe because if current fiber exists, we are reconciling, + // and it is guaranteed to be the work-in-progress version. - case REACT_LAZY_TYPE: { - var payload = newChild._payload; - var init = newChild._init; - return createChild(returnFiber, init(payload), lanes); - } - } + return getStackByFiberInDevAndProd(current); + } +} - if (isArray(newChild) || getIteratorFn(newChild)) { - var _created3 = createFiberFromFragment( - newChild, - returnFiber.mode, - lanes, - null - ); +function resetCurrentFiber() { + { + ReactDebugCurrentFrame.getCurrentStack = null; + current = null; + isRendering = false; + } +} +function setCurrentFiber(fiber) { + { + ReactDebugCurrentFrame.getCurrentStack = + fiber === null ? null : getCurrentFiberStackInDev; + current = fiber; + isRendering = false; + } +} +function getCurrentFiber() { + { + return current; + } +} +function setIsRendering(rendering) { + { + isRendering = rendering; + } +} - _created3.return = returnFiber; - return _created3; - } // Usable node types - // - // Unwrap the inner value and recursively call this function again. +var ReactStrictModeWarnings = { + recordUnsafeLifecycleWarnings: function (fiber, instance) {}, + flushPendingUnsafeLifecycleWarnings: function () {}, + recordLegacyContextWarning: function (fiber, instance) {}, + flushLegacyContextWarning: function () {}, + discardPendingWarnings: function () {} +}; - if (typeof newChild.then === "function") { - var thenable = newChild; - return createChild(returnFiber, unwrapThenable(thenable), lanes); - } +{ + var findStrictRoot = function (fiber) { + var maybeStrictRoot = null; + var node = fiber; - if ( - newChild.$$typeof === REACT_CONTEXT_TYPE || - newChild.$$typeof === REACT_SERVER_CONTEXT_TYPE - ) { - var context = newChild; - return createChild( - returnFiber, - readContextDuringReconcilation(returnFiber, context, lanes), - lanes - ); + while (node !== null) { + if (node.mode & StrictLegacyMode) { + maybeStrictRoot = node; } - throwOnInvalidObjectType(returnFiber, newChild); + node = node.return; } - { - if (typeof newChild === "function") { - warnOnFunctionType(returnFiber); - } - } + return maybeStrictRoot; + }; - return null; - } + var setToSortedString = function (set) { + var array = []; + set.forEach(function (value) { + array.push(value); + }); + return array.sort().join(", "); + }; - function updateSlot(returnFiber, oldFiber, newChild, lanes) { - // Update the fiber if the keys match, otherwise return null. - var key = oldFiber !== null ? oldFiber.key : null; + var pendingComponentWillMountWarnings = []; + var pendingUNSAFE_ComponentWillMountWarnings = []; + var pendingComponentWillReceivePropsWarnings = []; + var pendingUNSAFE_ComponentWillReceivePropsWarnings = []; + var pendingComponentWillUpdateWarnings = []; + var pendingUNSAFE_ComponentWillUpdateWarnings = []; // Tracks components we have already warned about. - if ( - (typeof newChild === "string" && newChild !== "") || - typeof newChild === "number" - ) { - // Text nodes don't have keys. If the previous node is implicitly keyed - // we can continue to replace it without aborting even if it is not a text - // node. - if (key !== null) { - return null; - } + var didWarnAboutUnsafeLifecycles = new Set(); - return updateTextNode(returnFiber, oldFiber, "" + newChild, lanes); + ReactStrictModeWarnings.recordUnsafeLifecycleWarnings = function ( + fiber, + instance + ) { + // Dedupe strategy: Warn once per component. + if (didWarnAboutUnsafeLifecycles.has(fiber.type)) { + return; } - if (typeof newChild === "object" && newChild !== null) { - switch (newChild.$$typeof) { - case REACT_ELEMENT_TYPE: { - if (newChild.key === key) { - return updateElement(returnFiber, oldFiber, newChild, lanes); - } else { - return null; - } - } - - case REACT_PORTAL_TYPE: { - if (newChild.key === key) { - return updatePortal(returnFiber, oldFiber, newChild, lanes); - } else { - return null; - } - } - - case REACT_LAZY_TYPE: { - var payload = newChild._payload; - var init = newChild._init; - return updateSlot(returnFiber, oldFiber, init(payload), lanes); - } - } - - if (isArray(newChild) || getIteratorFn(newChild)) { - if (key !== null) { - return null; - } - - return updateFragment(returnFiber, oldFiber, newChild, lanes, null); - } // Usable node types - // - // Unwrap the inner value and recursively call this function again. - - if (typeof newChild.then === "function") { - var thenable = newChild; - return updateSlot( - returnFiber, - oldFiber, - unwrapThenable(thenable), - lanes - ); - } - - if ( - newChild.$$typeof === REACT_CONTEXT_TYPE || - newChild.$$typeof === REACT_SERVER_CONTEXT_TYPE - ) { - var context = newChild; - return updateSlot( - returnFiber, - oldFiber, - readContextDuringReconcilation(returnFiber, context, lanes), - lanes - ); - } + if ( + typeof instance.componentWillMount === "function" && // Don't warn about react-lifecycles-compat polyfilled components. + instance.componentWillMount.__suppressDeprecationWarning !== true + ) { + pendingComponentWillMountWarnings.push(fiber); + } - throwOnInvalidObjectType(returnFiber, newChild); + if ( + fiber.mode & StrictLegacyMode && + typeof instance.UNSAFE_componentWillMount === "function" + ) { + pendingUNSAFE_ComponentWillMountWarnings.push(fiber); } - { - if (typeof newChild === "function") { - warnOnFunctionType(returnFiber); - } + if ( + typeof instance.componentWillReceiveProps === "function" && + instance.componentWillReceiveProps.__suppressDeprecationWarning !== true + ) { + pendingComponentWillReceivePropsWarnings.push(fiber); } - return null; - } + if ( + fiber.mode & StrictLegacyMode && + typeof instance.UNSAFE_componentWillReceiveProps === "function" + ) { + pendingUNSAFE_ComponentWillReceivePropsWarnings.push(fiber); + } - function updateFromMap( - existingChildren, - returnFiber, - newIdx, - newChild, - lanes - ) { if ( - (typeof newChild === "string" && newChild !== "") || - typeof newChild === "number" + typeof instance.componentWillUpdate === "function" && + instance.componentWillUpdate.__suppressDeprecationWarning !== true ) { - // Text nodes don't have keys, so we neither have to check the old nor - // new node for the key. If both are text nodes, they match. - var matchedFiber = existingChildren.get(newIdx) || null; - return updateTextNode(returnFiber, matchedFiber, "" + newChild, lanes); + pendingComponentWillUpdateWarnings.push(fiber); } - if (typeof newChild === "object" && newChild !== null) { - switch (newChild.$$typeof) { - case REACT_ELEMENT_TYPE: { - var _matchedFiber = - existingChildren.get( - newChild.key === null ? newIdx : newChild.key - ) || null; + if ( + fiber.mode & StrictLegacyMode && + typeof instance.UNSAFE_componentWillUpdate === "function" + ) { + pendingUNSAFE_ComponentWillUpdateWarnings.push(fiber); + } + }; - return updateElement(returnFiber, _matchedFiber, newChild, lanes); - } + ReactStrictModeWarnings.flushPendingUnsafeLifecycleWarnings = function () { + // We do an initial pass to gather component names + var componentWillMountUniqueNames = new Set(); - case REACT_PORTAL_TYPE: { - var _matchedFiber2 = - existingChildren.get( - newChild.key === null ? newIdx : newChild.key - ) || null; + if (pendingComponentWillMountWarnings.length > 0) { + pendingComponentWillMountWarnings.forEach(function (fiber) { + componentWillMountUniqueNames.add( + getComponentNameFromFiber(fiber) || "Component" + ); + didWarnAboutUnsafeLifecycles.add(fiber.type); + }); + pendingComponentWillMountWarnings = []; + } - return updatePortal(returnFiber, _matchedFiber2, newChild, lanes); - } + var UNSAFE_componentWillMountUniqueNames = new Set(); - case REACT_LAZY_TYPE: - var payload = newChild._payload; - var init = newChild._init; - return updateFromMap( - existingChildren, - returnFiber, - newIdx, - init(payload), - lanes - ); - } + if (pendingUNSAFE_ComponentWillMountWarnings.length > 0) { + pendingUNSAFE_ComponentWillMountWarnings.forEach(function (fiber) { + UNSAFE_componentWillMountUniqueNames.add( + getComponentNameFromFiber(fiber) || "Component" + ); + didWarnAboutUnsafeLifecycles.add(fiber.type); + }); + pendingUNSAFE_ComponentWillMountWarnings = []; + } - if (isArray(newChild) || getIteratorFn(newChild)) { - var _matchedFiber3 = existingChildren.get(newIdx) || null; + var componentWillReceivePropsUniqueNames = new Set(); - return updateFragment( - returnFiber, - _matchedFiber3, - newChild, - lanes, - null + if (pendingComponentWillReceivePropsWarnings.length > 0) { + pendingComponentWillReceivePropsWarnings.forEach(function (fiber) { + componentWillReceivePropsUniqueNames.add( + getComponentNameFromFiber(fiber) || "Component" ); - } // Usable node types - // - // Unwrap the inner value and recursively call this function again. + didWarnAboutUnsafeLifecycles.add(fiber.type); + }); + pendingComponentWillReceivePropsWarnings = []; + } - if (typeof newChild.then === "function") { - var thenable = newChild; - return updateFromMap( - existingChildren, - returnFiber, - newIdx, - unwrapThenable(thenable), - lanes - ); - } + var UNSAFE_componentWillReceivePropsUniqueNames = new Set(); - if ( - newChild.$$typeof === REACT_CONTEXT_TYPE || - newChild.$$typeof === REACT_SERVER_CONTEXT_TYPE - ) { - var context = newChild; - return updateFromMap( - existingChildren, - returnFiber, - newIdx, - readContextDuringReconcilation(returnFiber, context, lanes), - lanes + if (pendingUNSAFE_ComponentWillReceivePropsWarnings.length > 0) { + pendingUNSAFE_ComponentWillReceivePropsWarnings.forEach(function (fiber) { + UNSAFE_componentWillReceivePropsUniqueNames.add( + getComponentNameFromFiber(fiber) || "Component" ); - } - - throwOnInvalidObjectType(returnFiber, newChild); + didWarnAboutUnsafeLifecycles.add(fiber.type); + }); + pendingUNSAFE_ComponentWillReceivePropsWarnings = []; } - { - if (typeof newChild === "function") { - warnOnFunctionType(returnFiber); - } - } + var componentWillUpdateUniqueNames = new Set(); - return null; - } - /** - * Warns if there is a duplicate or missing key - */ + if (pendingComponentWillUpdateWarnings.length > 0) { + pendingComponentWillUpdateWarnings.forEach(function (fiber) { + componentWillUpdateUniqueNames.add( + getComponentNameFromFiber(fiber) || "Component" + ); + didWarnAboutUnsafeLifecycles.add(fiber.type); + }); + pendingComponentWillUpdateWarnings = []; + } - function warnOnInvalidKey(child, knownKeys, returnFiber) { - { - if (typeof child !== "object" || child === null) { - return knownKeys; - } + var UNSAFE_componentWillUpdateUniqueNames = new Set(); - switch (child.$$typeof) { - case REACT_ELEMENT_TYPE: - case REACT_PORTAL_TYPE: - warnForMissingKey(child, returnFiber); - var key = child.key; + if (pendingUNSAFE_ComponentWillUpdateWarnings.length > 0) { + pendingUNSAFE_ComponentWillUpdateWarnings.forEach(function (fiber) { + UNSAFE_componentWillUpdateUniqueNames.add( + getComponentNameFromFiber(fiber) || "Component" + ); + didWarnAboutUnsafeLifecycles.add(fiber.type); + }); + pendingUNSAFE_ComponentWillUpdateWarnings = []; + } // Finally, we flush all the warnings + // UNSAFE_ ones before the deprecated ones, since they'll be 'louder' - if (typeof key !== "string") { - break; - } + if (UNSAFE_componentWillMountUniqueNames.size > 0) { + var sortedNames = setToSortedString(UNSAFE_componentWillMountUniqueNames); - if (knownKeys === null) { - knownKeys = new Set(); - knownKeys.add(key); - break; - } + error( + "Using UNSAFE_componentWillMount in strict mode is not recommended and may indicate bugs in your code. " + + "See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n" + + "* Move code with side effects to componentDidMount, and set initial state in the constructor.\n" + + "\nPlease update the following components: %s", + sortedNames + ); + } - if (!knownKeys.has(key)) { - knownKeys.add(key); - break; - } + if (UNSAFE_componentWillReceivePropsUniqueNames.size > 0) { + var _sortedNames = setToSortedString( + UNSAFE_componentWillReceivePropsUniqueNames + ); - error( - "Encountered two children with the same key, `%s`. " + - "Keys should be unique so that components maintain their identity " + - "across updates. Non-unique keys may cause children to be " + - "duplicated and/or omitted — the behavior is unsupported and " + - "could change in a future version.", - key - ); + error( + "Using UNSAFE_componentWillReceiveProps in strict mode is not recommended " + + "and may indicate bugs in your code. " + + "See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n" + + "* Move data fetching code or side effects to componentDidUpdate.\n" + + "* If you're updating state whenever props change, " + + "refactor your code to use memoization techniques or move it to " + + "static getDerivedStateFromProps. Learn more at: https://reactjs.org/link/derived-state\n" + + "\nPlease update the following components: %s", + _sortedNames + ); + } - break; + if (UNSAFE_componentWillUpdateUniqueNames.size > 0) { + var _sortedNames2 = setToSortedString( + UNSAFE_componentWillUpdateUniqueNames + ); - case REACT_LAZY_TYPE: - var payload = child._payload; - var init = child._init; - warnOnInvalidKey(init(payload), knownKeys, returnFiber); - break; - } + error( + "Using UNSAFE_componentWillUpdate in strict mode is not recommended " + + "and may indicate bugs in your code. " + + "See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n" + + "* Move data fetching code or side effects to componentDidUpdate.\n" + + "\nPlease update the following components: %s", + _sortedNames2 + ); } - return knownKeys; - } - - function reconcileChildrenArray( - returnFiber, - currentFirstChild, - newChildren, - lanes - ) { - // This algorithm can't optimize by searching from both ends since we - // don't have backpointers on fibers. I'm trying to see how far we can get - // with that model. If it ends up not being worth the tradeoffs, we can - // add it later. - // Even with a two ended optimization, we'd want to optimize for the case - // where there are few changes and brute force the comparison instead of - // going for the Map. It'd like to explore hitting that path first in - // forward-only mode and only go for the Map once we notice that we need - // lots of look ahead. This doesn't handle reversal as well as two ended - // search but that's unusual. Besides, for the two ended optimization to - // work on Iterables, we'd need to copy the whole set. - // In this first iteration, we'll just live with hitting the bad case - // (adding everything to a Map) in for every insert/move. - // If you change this code, also update reconcileChildrenIterator() which - // uses the same algorithm. - { - // First, validate keys. - var knownKeys = null; + if (componentWillMountUniqueNames.size > 0) { + var _sortedNames3 = setToSortedString(componentWillMountUniqueNames); - for (var i = 0; i < newChildren.length; i++) { - var child = newChildren[i]; - knownKeys = warnOnInvalidKey(child, knownKeys, returnFiber); - } + warn( + "componentWillMount has been renamed, and is not recommended for use. " + + "See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n" + + "* Move code with side effects to componentDidMount, and set initial state in the constructor.\n" + + "* Rename componentWillMount to UNSAFE_componentWillMount to suppress " + + "this warning in non-strict mode. In React 18.x, only the UNSAFE_ name will work. " + + "To rename all deprecated lifecycles to their new names, you can run " + + "`npx react-codemod rename-unsafe-lifecycles` in your project source folder.\n" + + "\nPlease update the following components: %s", + _sortedNames3 + ); } - var resultingFirstChild = null; - var previousNewFiber = null; - var oldFiber = currentFirstChild; - var lastPlacedIndex = 0; - var newIdx = 0; - var nextOldFiber = null; - - for (; oldFiber !== null && newIdx < newChildren.length; newIdx++) { - if (oldFiber.index > newIdx) { - nextOldFiber = oldFiber; - oldFiber = null; - } else { - nextOldFiber = oldFiber.sibling; - } + if (componentWillReceivePropsUniqueNames.size > 0) { + var _sortedNames4 = setToSortedString( + componentWillReceivePropsUniqueNames + ); - var newFiber = updateSlot( - returnFiber, - oldFiber, - newChildren[newIdx], - lanes + warn( + "componentWillReceiveProps has been renamed, and is not recommended for use. " + + "See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n" + + "* Move data fetching code or side effects to componentDidUpdate.\n" + + "* If you're updating state whenever props change, refactor your " + + "code to use memoization techniques or move it to " + + "static getDerivedStateFromProps. Learn more at: https://reactjs.org/link/derived-state\n" + + "* Rename componentWillReceiveProps to UNSAFE_componentWillReceiveProps to suppress " + + "this warning in non-strict mode. In React 18.x, only the UNSAFE_ name will work. " + + "To rename all deprecated lifecycles to their new names, you can run " + + "`npx react-codemod rename-unsafe-lifecycles` in your project source folder.\n" + + "\nPlease update the following components: %s", + _sortedNames4 ); + } - if (newFiber === null) { - // TODO: This breaks on empty slots like null children. That's - // unfortunate because it triggers the slow path all the time. We need - // a better way to communicate whether this was a miss or null, - // boolean, undefined, etc. - if (oldFiber === null) { - oldFiber = nextOldFiber; - } + if (componentWillUpdateUniqueNames.size > 0) { + var _sortedNames5 = setToSortedString(componentWillUpdateUniqueNames); - break; - } + warn( + "componentWillUpdate has been renamed, and is not recommended for use. " + + "See https://reactjs.org/link/unsafe-component-lifecycles for details.\n\n" + + "* Move data fetching code or side effects to componentDidUpdate.\n" + + "* Rename componentWillUpdate to UNSAFE_componentWillUpdate to suppress " + + "this warning in non-strict mode. In React 18.x, only the UNSAFE_ name will work. " + + "To rename all deprecated lifecycles to their new names, you can run " + + "`npx react-codemod rename-unsafe-lifecycles` in your project source folder.\n" + + "\nPlease update the following components: %s", + _sortedNames5 + ); + } + }; - if (shouldTrackSideEffects) { - if (oldFiber && newFiber.alternate === null) { - // We matched the slot, but we didn't reuse the existing fiber, so we - // need to delete the existing child. - deleteChild(returnFiber, oldFiber); - } - } + var pendingLegacyContextWarning = new Map(); // Tracks components we have already warned about. - lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx); + var didWarnAboutLegacyContext = new Set(); - if (previousNewFiber === null) { - // TODO: Move out of the loop. This only happens for the first run. - resultingFirstChild = newFiber; - } else { - // TODO: Defer siblings if we're not at the right index for this slot. - // I.e. if we had null values before, then we want to defer this - // for each null value. However, we also don't want to call updateSlot - // with the previous one. - previousNewFiber.sibling = newFiber; - } + ReactStrictModeWarnings.recordLegacyContextWarning = function ( + fiber, + instance + ) { + var strictRoot = findStrictRoot(fiber); - previousNewFiber = newFiber; - oldFiber = nextOldFiber; - } + if (strictRoot === null) { + error( + "Expected to find a StrictMode component in a strict mode tree. " + + "This error is likely caused by a bug in React. Please file an issue." + ); - if (newIdx === newChildren.length) { - // We've reached the end of the new children. We can delete the rest. - deleteRemainingChildren(returnFiber, oldFiber); + return; + } // Dedup strategy: Warn once per component. - return resultingFirstChild; + if (didWarnAboutLegacyContext.has(fiber.type)) { + return; } - if (oldFiber === null) { - // If we don't have any more existing children we can choose a fast path - // since the rest will all be insertions. - for (; newIdx < newChildren.length; newIdx++) { - var _newFiber = createChild(returnFiber, newChildren[newIdx], lanes); - - if (_newFiber === null) { - continue; - } - - lastPlacedIndex = placeChild(_newFiber, lastPlacedIndex, newIdx); - - if (previousNewFiber === null) { - // TODO: Move out of the loop. This only happens for the first run. - resultingFirstChild = _newFiber; - } else { - previousNewFiber.sibling = _newFiber; - } + var warningsForRoot = pendingLegacyContextWarning.get(strictRoot); - previousNewFiber = _newFiber; + if ( + fiber.type.contextTypes != null || + fiber.type.childContextTypes != null || + (instance !== null && typeof instance.getChildContext === "function") + ) { + if (warningsForRoot === undefined) { + warningsForRoot = []; + pendingLegacyContextWarning.set(strictRoot, warningsForRoot); } - return resultingFirstChild; - } // Add all children to a key map for quick lookups. - - var existingChildren = mapRemainingChildren(returnFiber, oldFiber); // Keep scanning and use the map to restore deleted items as moves. - - for (; newIdx < newChildren.length; newIdx++) { - var _newFiber2 = updateFromMap( - existingChildren, - returnFiber, - newIdx, - newChildren[newIdx], - lanes - ); + warningsForRoot.push(fiber); + } + }; - if (_newFiber2 !== null) { - if (shouldTrackSideEffects) { - if (_newFiber2.alternate !== null) { - // The new fiber is a work in progress, but if there exists a - // current, that means that we reused the fiber. We need to delete - // it from the child list so that we don't add it to the deletion - // list. - existingChildren.delete( - _newFiber2.key === null ? newIdx : _newFiber2.key - ); - } - } + ReactStrictModeWarnings.flushLegacyContextWarning = function () { + pendingLegacyContextWarning.forEach(function (fiberArray, strictRoot) { + if (fiberArray.length === 0) { + return; + } - lastPlacedIndex = placeChild(_newFiber2, lastPlacedIndex, newIdx); + var firstFiber = fiberArray[0]; + var uniqueNames = new Set(); + fiberArray.forEach(function (fiber) { + uniqueNames.add(getComponentNameFromFiber(fiber) || "Component"); + didWarnAboutLegacyContext.add(fiber.type); + }); + var sortedNames = setToSortedString(uniqueNames); - if (previousNewFiber === null) { - resultingFirstChild = _newFiber2; - } else { - previousNewFiber.sibling = _newFiber2; - } + try { + setCurrentFiber(firstFiber); - previousNewFiber = _newFiber2; + error( + "Legacy context API has been detected within a strict-mode tree." + + "\n\nThe old API will be supported in all 16.x releases, but applications " + + "using it should migrate to the new version." + + "\n\nPlease update the following components: %s" + + "\n\nLearn more about this warning here: https://reactjs.org/link/legacy-context", + sortedNames + ); + } finally { + resetCurrentFiber(); } - } + }); + }; - if (shouldTrackSideEffects) { - // Any existing children that weren't consumed above were deleted. We need - // to add them to the deletion list. - existingChildren.forEach(function (child) { - return deleteChild(returnFiber, child); - }); - } + ReactStrictModeWarnings.discardPendingWarnings = function () { + pendingComponentWillMountWarnings = []; + pendingUNSAFE_ComponentWillMountWarnings = []; + pendingComponentWillReceivePropsWarnings = []; + pendingUNSAFE_ComponentWillReceivePropsWarnings = []; + pendingComponentWillUpdateWarnings = []; + pendingUNSAFE_ComponentWillUpdateWarnings = []; + pendingLegacyContextWarning = new Map(); + }; +} - return resultingFirstChild; +/* + * The `'' + value` pattern (used in perf-sensitive code) throws for Symbol + * and Temporal.* types. See https://github.com/facebook/react/pull/22064. + * + * The functions in this module will throw an easier-to-understand, + * easier-to-debug exception with a clear errors message message explaining the + * problem. (Instead of a confusing exception thrown inside the implementation + * of the `value` object). + */ +// $FlowFixMe only called in DEV, so void return is not possible. +function typeName(value) { + { + // toStringTag is needed for namespaced types like Temporal.Instant + var hasToStringTag = typeof Symbol === "function" && Symbol.toStringTag; + var type = + (hasToStringTag && value[Symbol.toStringTag]) || + value.constructor.name || + "Object"; // $FlowFixMe + + return type; } +} // $FlowFixMe only called in DEV, so void return is not possible. - function reconcileChildrenIterator( - returnFiber, - currentFirstChild, - newChildrenIterable, - lanes - ) { - // This is the same implementation as reconcileChildrenArray(), - // but using the iterator instead. - var iteratorFn = getIteratorFn(newChildrenIterable); +function willCoercionThrow(value) { + { + try { + testStringCoercion(value); + return false; + } catch (e) { + return true; + } + } +} - if (typeof iteratorFn !== "function") { - throw new Error( - "An object is not an iterable. This error is likely caused by a bug in " + - "React. Please file an issue." +function testStringCoercion(value) { + // If you ended up here by following an exception call stack, here's what's + // happened: you supplied an object or symbol value to React (as a prop, key, + // DOM attribute, CSS property, string ref, etc.) and when React tried to + // coerce it to a string using `'' + value`, an exception was thrown. + // + // The most common types that will cause this exception are `Symbol` instances + // and Temporal objects like `Temporal.Instant`. But any object that has a + // `valueOf` or `[Symbol.toPrimitive]` method that throws will also cause this + // exception. (Library authors do this to prevent users from using built-in + // numeric operators like `+` or comparison operators like `>=` because custom + // methods are needed to perform accurate arithmetic or comparison.) + // + // To fix the problem, coerce this object or symbol value to a string before + // passing it to React. The most reliable way is usually `String(value)`. + // + // To find which value is throwing, check the browser or debugger console. + // Before this exception was thrown, there should be `console.error` output + // that shows the type (Symbol, Temporal.PlainDate, etc.) that caused the + // problem and how that type was used: key, atrribute, input value prop, etc. + // In most cases, this console output also shows the component and its + // ancestor components where the exception happened. + // + // eslint-disable-next-line react-internal/safe-string-coercion + return "" + value; +} +function checkKeyStringCoercion(value) { + { + if (willCoercionThrow(value)) { + error( + "The provided key is an unsupported type %s." + + " This value must be coerced to a string before before using it here.", + typeName(value) ); + + return testStringCoercion(value); // throw (to help callers find troubleshooting comments) } + } +} +function checkPropStringCoercion(value, propName) { + { + if (willCoercionThrow(value)) { + error( + "The provided `%s` prop is an unsupported type %s." + + " This value must be coerced to a string before before using it here.", + propName, + typeName(value) + ); - { - // We don't support rendering Generators because it's a mutation. - // See https://github.com/facebook/react/issues/12995 - if ( - typeof Symbol === "function" && // $FlowFixMe Flow doesn't know about toStringTag - newChildrenIterable[Symbol.toStringTag] === "Generator" - ) { - if (!didWarnAboutGenerators) { - error( - "Using Generators as children is unsupported and will likely yield " + - "unexpected results because enumerating a generator mutates it. " + - "You may convert it to an array with `Array.from()` or the " + - "`[...spread]` operator before rendering. Keep in mind " + - "you might need to polyfill these features for older browsers." - ); - } + return testStringCoercion(value); // throw (to help callers find troubleshooting comments) + } + } +} - didWarnAboutGenerators = true; - } // Warn about using Maps as children +var ReactCurrentActQueue$2 = ReactSharedInternals.ReactCurrentActQueue; // An error that is thrown (e.g. by `use`) to trigger Suspense. If we +// detect this is caught by userspace, we'll log a warning in development. - if (newChildrenIterable.entries === iteratorFn) { - if (!didWarnAboutMaps) { - error( - "Using Maps as children is not supported. " + - "Use an array of keyed ReactElements instead." - ); - } +var SuspenseException = new Error( + "Suspense Exception: This is not a real error! It's an implementation " + + "detail of `use` to interrupt the current render. You must either " + + "rethrow it immediately, or move the `use` call outside of the " + + "`try/catch` block. Capturing without rethrowing will lead to " + + "unexpected behavior.\n\n" + + "To handle async errors, wrap your component in an error boundary, or " + + "call the promise's `.catch` method and pass the result to `use`" +); +var SuspenseyCommitException = new Error( + "Suspense Exception: This is not a real error, and should not leak into " + + "userspace. If you're seeing this, it's likely a bug in React." +); // This is a noop thenable that we use to trigger a fallback in throwException. +// TODO: It would be better to refactor throwException into multiple functions +// so we can trigger a fallback directly without having to check the type. But +// for now this will do. - didWarnAboutMaps = true; - } // First, validate keys. - // We'll get a different iterator later for the main pass. +var noopSuspenseyCommitThenable = { + then: function () {} +}; +function createThenableState() { + // The ThenableState is created the first time a component suspends. If it + // suspends again, we'll reuse the same state. + return []; +} +function isThenableResolved(thenable) { + var status = thenable.status; + return status === "fulfilled" || status === "rejected"; +} - var _newChildren = iteratorFn.call(newChildrenIterable); +function noop() {} - if (_newChildren) { - var knownKeys = null; +function trackUsedThenable(thenableState, thenable, index) { + if (ReactCurrentActQueue$2.current !== null) { + ReactCurrentActQueue$2.didUsePromise = true; + } - var _step = _newChildren.next(); + var previous = thenableState[index]; - for (; !_step.done; _step = _newChildren.next()) { - var child = _step.value; - knownKeys = warnOnInvalidKey(child, knownKeys, returnFiber); - } - } + if (previous === undefined) { + thenableState.push(thenable); + } else { + if (previous !== thenable) { + // Reuse the previous thenable, and drop the new one. We can assume + // they represent the same value, because components are idempotent. + // Avoid an unhandled rejection errors for the Promises that we'll + // intentionally ignore. + thenable.then(noop, noop); + thenable = previous; } - - var newChildren = iteratorFn.call(newChildrenIterable); - - if (newChildren == null) { - throw new Error("An iterable object provided no iterator."); + } // We use an expando to track the status and result of a thenable so that we + // can synchronously unwrap the value. Think of this as an extension of the + // Promise API, or a custom interface that is a superset of Thenable. + // + // If the thenable doesn't have a status, set it to "pending" and attach + // a listener that will update its status and result when it resolves. + + switch (thenable.status) { + case "fulfilled": { + var fulfilledValue = thenable.value; + return fulfilledValue; } - var resultingFirstChild = null; - var previousNewFiber = null; - var oldFiber = currentFirstChild; - var lastPlacedIndex = 0; - var newIdx = 0; - var nextOldFiber = null; - var step = newChildren.next(); + case "rejected": { + var rejectedError = thenable.reason; + throw rejectedError; + } - for ( - ; - oldFiber !== null && !step.done; - newIdx++, step = newChildren.next() - ) { - if (oldFiber.index > newIdx) { - nextOldFiber = oldFiber; - oldFiber = null; + default: { + if (typeof thenable.status === "string") { + // Only instrument the thenable if the status if not defined. If + // it's defined, but an unknown value, assume it's been instrumented by + // some custom userspace implementation. We treat it as "pending". + // Attach a dummy listener, to ensure that any lazy initialization can + // happen. Flight lazily parses JSON when the value is actually awaited. + thenable.then(noop, noop); } else { - nextOldFiber = oldFiber.sibling; - } - - var newFiber = updateSlot(returnFiber, oldFiber, step.value, lanes); + var pendingThenable = thenable; + pendingThenable.status = "pending"; + pendingThenable.then( + function (fulfilledValue) { + if (thenable.status === "pending") { + var fulfilledThenable = thenable; + fulfilledThenable.status = "fulfilled"; + fulfilledThenable.value = fulfilledValue; + } + }, + function (error) { + if (thenable.status === "pending") { + var rejectedThenable = thenable; + rejectedThenable.status = "rejected"; + rejectedThenable.reason = error; + } + } + ); + } // Check one more time in case the thenable resolved synchronously. - if (newFiber === null) { - // TODO: This breaks on empty slots like null children. That's - // unfortunate because it triggers the slow path all the time. We need - // a better way to communicate whether this was a miss or null, - // boolean, undefined, etc. - if (oldFiber === null) { - oldFiber = nextOldFiber; + switch (thenable.status) { + case "fulfilled": { + var fulfilledThenable = thenable; + return fulfilledThenable.value; } - break; - } - - if (shouldTrackSideEffects) { - if (oldFiber && newFiber.alternate === null) { - // We matched the slot, but we didn't reuse the existing fiber, so we - // need to delete the existing child. - deleteChild(returnFiber, oldFiber); + case "rejected": { + var rejectedThenable = thenable; + throw rejectedThenable.reason; } - } + } // Suspend. + // + // Throwing here is an implementation detail that allows us to unwind the + // call stack. But we shouldn't allow it to leak into userspace. Throw an + // opaque placeholder value instead of the actual thenable. If it doesn't + // get captured by the work loop, log a warning, because that means + // something in userspace must have caught it. - lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx); + suspendedThenable = thenable; - if (previousNewFiber === null) { - // TODO: Move out of the loop. This only happens for the first run. - resultingFirstChild = newFiber; - } else { - // TODO: Defer siblings if we're not at the right index for this slot. - // I.e. if we had null values before, then we want to defer this - // for each null value. However, we also don't want to call updateSlot - // with the previous one. - previousNewFiber.sibling = newFiber; + { + needsToResetSuspendedThenableDEV = true; } - previousNewFiber = newFiber; - oldFiber = nextOldFiber; + throw SuspenseException; } + } +} +// passed to the rest of the Suspense implementation — which, for historical +// reasons, expects to receive a thenable. - if (step.done) { - // We've reached the end of the new children. We can delete the rest. - deleteRemainingChildren(returnFiber, oldFiber); +var suspendedThenable = null; +var needsToResetSuspendedThenableDEV = false; +function getSuspendedThenable() { + // This is called right after `use` suspends by throwing an exception. `use` + // throws an opaque value instead of the thenable itself so that it can't be + // caught in userspace. Then the work loop accesses the actual thenable using + // this function. + if (suspendedThenable === null) { + throw new Error( + "Expected a suspended thenable. This is a bug in React. Please file " + + "an issue." + ); + } - return resultingFirstChild; + var thenable = suspendedThenable; + suspendedThenable = null; + + { + needsToResetSuspendedThenableDEV = false; + } + + return thenable; +} +function checkIfUseWrappedInTryCatch() { + { + // This was set right before SuspenseException was thrown, and it should + // have been cleared when the exception was handled. If it wasn't, + // it must have been caught by userspace. + if (needsToResetSuspendedThenableDEV) { + needsToResetSuspendedThenableDEV = false; + return true; } + } - if (oldFiber === null) { - // If we don't have any more existing children we can choose a fast path - // since the rest will all be insertions. - for (; !step.done; newIdx++, step = newChildren.next()) { - var _newFiber3 = createChild(returnFiber, step.value, lanes); + return false; +} - if (_newFiber3 === null) { - continue; - } +var thenableState$1 = null; +var thenableIndexCounter$1 = 0; +var didWarnAboutMaps; +var didWarnAboutGenerators; +var didWarnAboutStringRefs; +var ownerHasKeyUseWarning; +var ownerHasFunctionTypeWarning; - lastPlacedIndex = placeChild(_newFiber3, lastPlacedIndex, newIdx); +var warnForMissingKey = function (child, returnFiber) {}; - if (previousNewFiber === null) { - // TODO: Move out of the loop. This only happens for the first run. - resultingFirstChild = _newFiber3; - } else { - previousNewFiber.sibling = _newFiber3; - } +{ + didWarnAboutMaps = false; + didWarnAboutGenerators = false; + didWarnAboutStringRefs = {}; + /** + * Warn if there's no key explicitly set on dynamic arrays of children or + * object keys are not valid. This allows us to keep track of children between + * updates. + */ - previousNewFiber = _newFiber3; - } + ownerHasKeyUseWarning = {}; + ownerHasFunctionTypeWarning = {}; - return resultingFirstChild; - } // Add all children to a key map for quick lookups. + warnForMissingKey = function (child, returnFiber) { + if (child === null || typeof child !== "object") { + return; + } - var existingChildren = mapRemainingChildren(returnFiber, oldFiber); // Keep scanning and use the map to restore deleted items as moves. + if (!child._store || child._store.validated || child.key != null) { + return; + } - for (; !step.done; newIdx++, step = newChildren.next()) { - var _newFiber4 = updateFromMap( - existingChildren, - returnFiber, - newIdx, - step.value, - lanes + if (typeof child._store !== "object") { + throw new Error( + "React Component in warnForMissingKey should have a _store. " + + "This error is likely caused by a bug in React. Please file an issue." ); + } // $FlowFixMe unable to narrow type from mixed to writable object - if (_newFiber4 !== null) { - if (shouldTrackSideEffects) { - if (_newFiber4.alternate !== null) { - // The new fiber is a work in progress, but if there exists a - // current, that means that we reused the fiber. We need to delete - // it from the child list so that we don't add it to the deletion - // list. - existingChildren.delete( - _newFiber4.key === null ? newIdx : _newFiber4.key - ); - } - } + child._store.validated = true; + var componentName = getComponentNameFromFiber(returnFiber) || "Component"; - lastPlacedIndex = placeChild(_newFiber4, lastPlacedIndex, newIdx); + if (ownerHasKeyUseWarning[componentName]) { + return; + } - if (previousNewFiber === null) { - resultingFirstChild = _newFiber4; - } else { - previousNewFiber.sibling = _newFiber4; - } + ownerHasKeyUseWarning[componentName] = true; - previousNewFiber = _newFiber4; - } - } + error( + "Each child in a list should have a unique " + + '"key" prop. See https://reactjs.org/link/warning-keys for ' + + "more information." + ); + }; +} - if (shouldTrackSideEffects) { - // Any existing children that weren't consumed above were deleted. We need - // to add them to the deletion list. - existingChildren.forEach(function (child) { - return deleteChild(returnFiber, child); - }); - } +function isReactClass(type) { + return type.prototype && type.prototype.isReactComponent; +} - return resultingFirstChild; - } +function unwrapThenable(thenable) { + var index = thenableIndexCounter$1; + thenableIndexCounter$1 += 1; - function reconcileSingleTextNode( - returnFiber, - currentFirstChild, - textContent, - lanes - ) { - // There's no need to check for keys on text nodes since we don't have a - // way to define them. - if (currentFirstChild !== null && currentFirstChild.tag === HostText) { - // We already have an existing node so let's just update it and delete - // the rest. - deleteRemainingChildren(returnFiber, currentFirstChild.sibling); - var existing = useFiber(currentFirstChild, textContent); - existing.return = returnFiber; - return existing; - } // The existing first child is not a text node so we need to create one - // and delete the existing ones. - - deleteRemainingChildren(returnFiber, currentFirstChild); - var created = createFiberFromText(textContent, returnFiber.mode, lanes); - created.return = returnFiber; - return created; + if (thenableState$1 === null) { + thenableState$1 = createThenableState(); } - function reconcileSingleElement( - returnFiber, - currentFirstChild, - element, - lanes + return trackUsedThenable(thenableState$1, thenable, index); +} + +function coerceRef(returnFiber, current, element) { + var mixedRef = element.ref; + + if ( + mixedRef !== null && + typeof mixedRef !== "function" && + typeof mixedRef !== "object" ) { - var key = element.key; - var child = currentFirstChild; + { + if ( + // We warn in ReactElement.js if owner and self are equal for string refs + // because these cannot be automatically converted to an arrow function + // using a codemod. Therefore, we don't have to warn about string refs again. + !( + element._owner && + element._self && + element._owner.stateNode !== element._self + ) && // Will already throw with "Function components cannot have string refs" + !(element._owner && element._owner.tag !== ClassComponent) && // Will already warn with "Function components cannot be given refs" + !(typeof element.type === "function" && !isReactClass(element.type)) && // Will already throw with "Element ref was specified as a string (someStringRef) but no owner was set" + element._owner + ) { + var componentName = + getComponentNameFromFiber(returnFiber) || "Component"; - while (child !== null) { - // TODO: If key === null and child.key === null, then this only applies to - // the first item in the list. - if (child.key === key) { - var elementType = element.type; + if (!didWarnAboutStringRefs[componentName]) { + error( + 'Component "%s" contains the string ref "%s". Support for string refs ' + + "will be removed in a future major release. We recommend using " + + "useRef() or createRef() instead. " + + "Learn more about using refs safely here: " + + "https://reactjs.org/link/strict-mode-string-ref", + componentName, + mixedRef + ); - if (elementType === REACT_FRAGMENT_TYPE) { - if (child.tag === Fragment) { - deleteRemainingChildren(returnFiber, child.sibling); - var existing = useFiber(child, element.props.children); - existing.return = returnFiber; + didWarnAboutStringRefs[componentName] = true; + } + } + } - { - existing._debugSource = element._source; - existing._debugOwner = element._owner; - } + if (element._owner) { + var owner = element._owner; + var inst; - return existing; - } - } else { - if ( - child.elementType === elementType || // Keep this check inline so it only runs on the false path: - isCompatibleFamilyForHotReloading(child, element) || // Lazy types should reconcile their resolved type. - // We need to do this after the Hot Reloading check above, - // because hot reloading has different semantics than prod because - // it doesn't resuspend. So we can't let the call below suspend. - (typeof elementType === "object" && - elementType !== null && - elementType.$$typeof === REACT_LAZY_TYPE && - resolveLazy(elementType) === child.type) - ) { - deleteRemainingChildren(returnFiber, child.sibling); + if (owner) { + var ownerFiber = owner; - var _existing = useFiber(child, element.props); + if (ownerFiber.tag !== ClassComponent) { + throw new Error( + "Function components cannot have string refs. " + + "We recommend using useRef() instead. " + + "Learn more about using refs safely here: " + + "https://reactjs.org/link/strict-mode-string-ref" + ); + } - _existing.ref = coerceRef(returnFiber, child, element); - _existing.return = returnFiber; + inst = ownerFiber.stateNode; + } - { - _existing._debugSource = element._source; - _existing._debugOwner = element._owner; - } + if (!inst) { + throw new Error( + "Missing owner for string ref " + + mixedRef + + ". This error is likely caused by a " + + "bug in React. Please file an issue." + ); + } // Assigning this to a const so Flow knows it won't change in the closure - return _existing; - } - } // Didn't match. + var resolvedInst = inst; - deleteRemainingChildren(returnFiber, child); - break; - } else { - deleteChild(returnFiber, child); + { + checkPropStringCoercion(mixedRef, "ref"); } - child = child.sibling; - } + var stringRef = "" + mixedRef; // Check if previous string ref matches new string ref - if (element.type === REACT_FRAGMENT_TYPE) { - var created = createFiberFromFragment( - element.props.children, - returnFiber.mode, - lanes, - element.key - ); - created.return = returnFiber; - return created; + if ( + current !== null && + current.ref !== null && + typeof current.ref === "function" && + current.ref._stringRef === stringRef + ) { + return current.ref; + } + + var ref = function (value) { + var refs = resolvedInst.refs; + + if (value === null) { + delete refs[stringRef]; + } else { + refs[stringRef] = value; + } + }; + + ref._stringRef = stringRef; + return ref; } else { - var _created4 = createFiberFromElement(element, returnFiber.mode, lanes); + if (typeof mixedRef !== "string") { + throw new Error( + "Expected ref to be a function, a string, an object returned by React.createRef(), or null." + ); + } - _created4.ref = coerceRef(returnFiber, currentFirstChild, element); - _created4.return = returnFiber; - return _created4; + if (!element._owner) { + throw new Error( + "Element ref was specified as a string (" + + mixedRef + + ") but no owner was set. This could happen for one of" + + " the following reasons:\n" + + "1. You may be adding a ref to a function component\n" + + "2. You may be adding a ref to a component that was not created inside a component's render method\n" + + "3. You have multiple copies of React loaded\n" + + "See https://reactjs.org/link/refs-must-have-owner for more information." + ); + } } } - function reconcileSinglePortal( - returnFiber, - currentFirstChild, - portal, - lanes - ) { - var key = portal.key; - var child = currentFirstChild; + return mixedRef; +} - while (child !== null) { - // TODO: If key === null and child.key === null, then this only applies to - // the first item in the list. - if (child.key === key) { - if ( - child.tag === HostPortal && - child.stateNode.containerInfo === portal.containerInfo && - child.stateNode.implementation === portal.implementation - ) { - deleteRemainingChildren(returnFiber, child.sibling); - var existing = useFiber(child, portal.children || []); - existing.return = returnFiber; - return existing; - } else { - deleteRemainingChildren(returnFiber, child); - break; - } - } else { - deleteChild(returnFiber, child); - } +function throwOnInvalidObjectType(returnFiber, newChild) { + // $FlowFixMe[method-unbinding] + var childString = Object.prototype.toString.call(newChild); + throw new Error( + "Objects are not valid as a React child (found: " + + (childString === "[object Object]" + ? "object with keys {" + Object.keys(newChild).join(", ") + "}" + : childString) + + "). " + + "If you meant to render a collection of children, use an array " + + "instead." + ); +} - child = child.sibling; +function warnOnFunctionType(returnFiber) { + { + var componentName = getComponentNameFromFiber(returnFiber) || "Component"; + + if (ownerHasFunctionTypeWarning[componentName]) { + return; } - var created = createFiberFromPortal(portal, returnFiber.mode, lanes); - created.return = returnFiber; - return created; - } // This API will tag the children with the side-effect of the reconciliation - // itself. They will be added to the side-effect list as we pass through the - // children and the parent. + ownerHasFunctionTypeWarning[componentName] = true; - function reconcileChildFibersImpl( - returnFiber, - currentFirstChild, - newChild, - lanes - ) { - // This function is not recursive. - // If the top level item is an array, we treat it as a set of children, - // not as a fragment. Nested arrays on the other hand will be treated as - // fragment nodes. Recursion happens at the normal flow. - // Handle top level unkeyed fragments as if they were arrays. - // This leads to an ambiguity between <>{[...]} and <>.... - // We treat the ambiguous cases above the same. - // TODO: Let's use recursion like we do for Usable nodes? - var isUnkeyedTopLevelFragment = - typeof newChild === "object" && - newChild !== null && - newChild.type === REACT_FRAGMENT_TYPE && - newChild.key === null; + error( + "Functions are not valid as a React child. This may happen if " + + "you return a Component instead of from render. " + + "Or maybe you meant to call this function rather than return it." + ); + } +} - if (isUnkeyedTopLevelFragment) { - newChild = newChild.props.children; - } // Handle object types +function resolveLazy(lazyType) { + var payload = lazyType._payload; + var init = lazyType._init; + return init(payload); +} // This wrapper function exists because I expect to clone the code in each path +// to be able to optimize each path individually by branching early. This needs +// a compiler or we can do it manually. Helpers that don't need this branching +// live outside of this function. - if (typeof newChild === "object" && newChild !== null) { - switch (newChild.$$typeof) { - case REACT_ELEMENT_TYPE: - return placeSingleChild( - reconcileSingleElement( - returnFiber, - currentFirstChild, - newChild, - lanes - ) - ); +function createChildReconciler(shouldTrackSideEffects) { + function deleteChild(returnFiber, childToDelete) { + if (!shouldTrackSideEffects) { + // Noop. + return; + } - case REACT_PORTAL_TYPE: - return placeSingleChild( - reconcileSinglePortal( - returnFiber, - currentFirstChild, - newChild, - lanes - ) - ); + var deletions = returnFiber.deletions; - case REACT_LAZY_TYPE: - var payload = newChild._payload; - var init = newChild._init; // TODO: This function is supposed to be non-recursive. + if (deletions === null) { + returnFiber.deletions = [childToDelete]; + returnFiber.flags |= ChildDeletion; + } else { + deletions.push(childToDelete); + } + } - return reconcileChildFibers( - returnFiber, - currentFirstChild, - init(payload), - lanes - ); - } + function deleteRemainingChildren(returnFiber, currentFirstChild) { + if (!shouldTrackSideEffects) { + // Noop. + return null; + } // TODO: For the shouldClone case, this could be micro-optimized a bit by + // assuming that after the first child we've already added everything. - if (isArray(newChild)) { - return reconcileChildrenArray( - returnFiber, - currentFirstChild, - newChild, - lanes - ); - } + var childToDelete = currentFirstChild; - if (getIteratorFn(newChild)) { - return reconcileChildrenIterator( - returnFiber, - currentFirstChild, - newChild, - lanes - ); - } // Usables are a valid React node type. When React encounters a Usable in - // a child position, it unwraps it using the same algorithm as `use`. For - // example, for promises, React will throw an exception to unwind the - // stack, then replay the component once the promise resolves. - // - // A difference from `use` is that React will keep unwrapping the value - // until it reaches a non-Usable type. - // - // e.g. Usable>> should resolve to T - // - // The structure is a bit unfortunate. Ideally, we shouldn't need to - // replay the entire begin phase of the parent fiber in order to reconcile - // the children again. This would require a somewhat significant refactor, - // because reconcilation happens deep within the begin phase, and - // depending on the type of work, not always at the end. We should - // consider as an future improvement. + while (childToDelete !== null) { + deleteChild(returnFiber, childToDelete); + childToDelete = childToDelete.sibling; + } - if (typeof newChild.then === "function") { - var thenable = newChild; - return reconcileChildFibersImpl( - returnFiber, - currentFirstChild, - unwrapThenable(thenable), - lanes - ); - } + return null; + } - if ( - newChild.$$typeof === REACT_CONTEXT_TYPE || - newChild.$$typeof === REACT_SERVER_CONTEXT_TYPE - ) { - var context = newChild; - return reconcileChildFibersImpl( - returnFiber, - currentFirstChild, - readContextDuringReconcilation(returnFiber, context, lanes), - lanes - ); - } + function mapRemainingChildren(returnFiber, currentFirstChild) { + // Add the remaining children to a temporary map so that we can find them by + // keys quickly. Implicit (null) keys get added to this set with their index + // instead. + var existingChildren = new Map(); + var existingChild = currentFirstChild; - throwOnInvalidObjectType(returnFiber, newChild); - } + while (existingChild !== null) { + if (existingChild.key !== null) { + existingChildren.set(existingChild.key, existingChild); + } else { + existingChildren.set(existingChild.index, existingChild); + } - if ( - (typeof newChild === "string" && newChild !== "") || - typeof newChild === "number" - ) { - return placeSingleChild( - reconcileSingleTextNode( - returnFiber, - currentFirstChild, - "" + newChild, - lanes - ) - ); + existingChild = existingChild.sibling; } - { - if (typeof newChild === "function") { - warnOnFunctionType(returnFiber); - } - } // Remaining cases are all treated as empty. - - return deleteRemainingChildren(returnFiber, currentFirstChild); + return existingChildren; } - function reconcileChildFibers( - returnFiber, - currentFirstChild, - newChild, - lanes - ) { - // This indirection only exists so we can reset `thenableState` at the end. - // It should get inlined by Closure. - thenableIndexCounter$1 = 0; - var firstChildFiber = reconcileChildFibersImpl( - returnFiber, - currentFirstChild, - newChild, - lanes - ); - thenableState$1 = null; // Don't bother to reset `thenableIndexCounter` to 0 because it always gets - // set at the beginning. - - return firstChildFiber; + function useFiber(fiber, pendingProps) { + // We currently set sibling to null and index to 0 here because it is easy + // to forget to do before returning it. E.g. for the single child case. + var clone = createWorkInProgress(fiber, pendingProps); + clone.index = 0; + clone.sibling = null; + return clone; } - return reconcileChildFibers; -} + function placeChild(newFiber, lastPlacedIndex, newIndex) { + newFiber.index = newIndex; -var reconcileChildFibers = createChildReconciler(true); -var mountChildFibers = createChildReconciler(false); -function resetChildReconcilerOnUnwind() { - // On unwind, clear any pending thenables that were used. - thenableState$1 = null; - thenableIndexCounter$1 = 0; -} -function cloneChildFibers(current, workInProgress) { - if (current !== null && workInProgress.child !== current.child) { - throw new Error("Resuming work not yet implemented."); - } + if (!shouldTrackSideEffects) { + // During hydration, the useId algorithm needs to know which fibers are + // part of a list of children (arrays, iterators). + newFiber.flags |= Forked; + return lastPlacedIndex; + } - if (workInProgress.child === null) { - return; - } + var current = newFiber.alternate; - var currentChild = workInProgress.child; - var newChild = createWorkInProgress(currentChild, currentChild.pendingProps); - workInProgress.child = newChild; - newChild.return = workInProgress; + if (current !== null) { + var oldIndex = current.index; - while (currentChild.sibling !== null) { - currentChild = currentChild.sibling; - newChild = newChild.sibling = createWorkInProgress( - currentChild, - currentChild.pendingProps - ); - newChild.return = workInProgress; + if (oldIndex < lastPlacedIndex) { + // This is a move. + newFiber.flags |= Placement | PlacementDEV; + return lastPlacedIndex; + } else { + // This item can stay in place. + return oldIndex; + } + } else { + // This is an insertion. + newFiber.flags |= Placement | PlacementDEV; + return lastPlacedIndex; + } } - newChild.sibling = null; -} // Reset a workInProgress child set to prepare it for a second pass. - -function resetChildFibers(workInProgress, lanes) { - var child = workInProgress.child; + function placeSingleChild(newFiber) { + // This is simpler for the single child case. We only need to do a + // placement for inserting new children. + if (shouldTrackSideEffects && newFiber.alternate === null) { + newFiber.flags |= Placement | PlacementDEV; + } - while (child !== null) { - resetWorkInProgress(child, lanes); - child = child.sibling; + return newFiber; } -} -// TODO: This isn't being used yet, but it's intended to replace the -// InvisibleParentContext that is currently managed by SuspenseContext. - -var currentTreeHiddenStackCursor = createCursor(null); -var prevRenderLanesStackCursor = createCursor(NoLanes); -function pushHiddenContext(fiber, context) { - var prevRenderLanes = getRenderLanes(); - push(prevRenderLanesStackCursor, prevRenderLanes, fiber); - push(currentTreeHiddenStackCursor, context, fiber); // When rendering a subtree that's currently hidden, we must include all - // lanes that would have rendered if the hidden subtree hadn't been deferred. - // That is, in order to reveal content from hidden -> visible, we must commit - // all the updates that we skipped when we originally hid the tree. + function updateTextNode(returnFiber, current, textContent, lanes) { + if (current === null || current.tag !== HostText) { + // Insert + var created = createFiberFromText(textContent, returnFiber.mode, lanes); + created.return = returnFiber; + return created; + } else { + // Update + var existing = useFiber(current, textContent); + existing.return = returnFiber; + return existing; + } + } - setRenderLanes(mergeLanes(prevRenderLanes, context.baseLanes)); -} -function reuseHiddenContextOnStack(fiber) { - // This subtree is not currently hidden, so we don't need to add any lanes - // to the render lanes. But we still need to push something to avoid a - // context mismatch. Reuse the existing context on the stack. - push(prevRenderLanesStackCursor, getRenderLanes(), fiber); - push( - currentTreeHiddenStackCursor, - currentTreeHiddenStackCursor.current, - fiber - ); -} -function popHiddenContext(fiber) { - // Restore the previous render lanes from the stack - setRenderLanes(prevRenderLanesStackCursor.current); - pop(currentTreeHiddenStackCursor, fiber); - pop(prevRenderLanesStackCursor, fiber); -} -function isCurrentTreeHidden() { - return currentTreeHiddenStackCursor.current !== null; -} + function updateElement(returnFiber, current, element, lanes) { + var elementType = element.type; -// suspends, i.e. it's the nearest `catch` block on the stack. + if (elementType === REACT_FRAGMENT_TYPE) { + return updateFragment( + returnFiber, + current, + element.props.children, + lanes, + element.key + ); + } -var suspenseHandlerStackCursor = createCursor(null); // Represents the outermost boundary that is not visible in the current tree. -// Everything above this is the "shell". When this is null, it means we're -// rendering in the shell of the app. If it's non-null, it means we're rendering -// deeper than the shell, inside a new tree that wasn't already visible. -// -// The main way we use this concept is to determine whether showing a fallback -// would result in a desirable or undesirable loading state. Activing a fallback -// in the shell is considered an undersirable loading state, because it would -// mean hiding visible (albeit stale) content in the current tree — we prefer to -// show the stale content, rather than switch to a fallback. But showing a -// fallback in a new tree is fine, because there's no stale content to -// prefer instead. + if (current !== null) { + if ( + current.elementType === elementType || // Keep this check inline so it only runs on the false path: + isCompatibleFamilyForHotReloading(current, element) || // Lazy types should reconcile their resolved type. + // We need to do this after the Hot Reloading check above, + // because hot reloading has different semantics than prod because + // it doesn't resuspend. So we can't let the call below suspend. + (typeof elementType === "object" && + elementType !== null && + elementType.$$typeof === REACT_LAZY_TYPE && + resolveLazy(elementType) === current.type) + ) { + // Move based on index + var existing = useFiber(current, element.props); + existing.ref = coerceRef(returnFiber, current, element); + existing.return = returnFiber; -var shellBoundary = null; -function getShellBoundary() { - return shellBoundary; -} -function pushPrimaryTreeSuspenseHandler(handler) { - // TODO: Pass as argument - var current = handler.alternate; - // propagated a single level. For example, when ForceSuspenseFallback is set, - // it should only force the nearest Suspense boundary into fallback mode. + { + existing._debugSource = element._source; + existing._debugOwner = element._owner; + } - pushSuspenseListContext( - handler, - setDefaultShallowSuspenseListContext(suspenseStackCursor.current) - ); // Experimental feature: Some Suspense boundaries are marked as having an - // to push a nested Suspense handler, because it will get replaced by the - // outer fallback, anyway. Consider this as a future optimization. + return existing; + } + } // Insert - push(suspenseHandlerStackCursor, handler, handler); + var created = createFiberFromElement(element, returnFiber.mode, lanes); + created.ref = coerceRef(returnFiber, current, element); + created.return = returnFiber; + return created; + } - if (shellBoundary === null) { - if (current === null || isCurrentTreeHidden()) { - // This boundary is not visible in the current UI. - shellBoundary = handler; + function updatePortal(returnFiber, current, portal, lanes) { + if ( + current === null || + current.tag !== HostPortal || + current.stateNode.containerInfo !== portal.containerInfo || + current.stateNode.implementation !== portal.implementation + ) { + // Insert + var created = createFiberFromPortal(portal, returnFiber.mode, lanes); + created.return = returnFiber; + return created; } else { - var prevState = current.memoizedState; + // Update + var existing = useFiber(current, portal.children || []); + existing.return = returnFiber; + return existing; + } + } - if (prevState !== null) { - // This boundary is showing a fallback in the current UI. - shellBoundary = handler; - } + function updateFragment(returnFiber, current, fragment, lanes, key) { + if (current === null || current.tag !== Fragment) { + // Insert + var created = createFiberFromFragment( + fragment, + returnFiber.mode, + lanes, + key + ); + created.return = returnFiber; + return created; + } else { + // Update + var existing = useFiber(current, fragment); + existing.return = returnFiber; + return existing; } } -} -function pushFallbackTreeSuspenseHandler(fiber) { - // We're about to render the fallback. If something in the fallback suspends, - // it's akin to throwing inside of a `catch` block. This boundary should not - // capture. Reuse the existing handler on the stack. - reuseSuspenseHandlerOnStack(fiber); -} -function pushOffscreenSuspenseHandler(fiber) { - if (fiber.tag === OffscreenComponent) { - // A SuspenseList context is only pushed here to avoid a push/pop mismatch. - // Reuse the current value on the stack. - // TODO: We can avoid needing to push here by by forking popSuspenseHandler - // into separate functions for Suspense and Offscreen. - pushSuspenseListContext(fiber, suspenseStackCursor.current); - push(suspenseHandlerStackCursor, fiber, fiber); - if (shellBoundary !== null); - else { - var current = fiber.alternate; + function createChild(returnFiber, newChild, lanes) { + if ( + (typeof newChild === "string" && newChild !== "") || + typeof newChild === "number" + ) { + // Text nodes don't have keys. If the previous node is implicitly keyed + // we can continue to replace it without aborting even if it is not a text + // node. + var created = createFiberFromText("" + newChild, returnFiber.mode, lanes); + created.return = returnFiber; + return created; + } - if (current !== null) { - var prevState = current.memoizedState; + if (typeof newChild === "object" && newChild !== null) { + switch (newChild.$$typeof) { + case REACT_ELEMENT_TYPE: { + var _created = createFiberFromElement( + newChild, + returnFiber.mode, + lanes + ); - if (prevState !== null) { - // This is the first boundary in the stack that's already showing - // a fallback. So everything outside is considered the shell. - shellBoundary = fiber; + _created.ref = coerceRef(returnFiber, null, newChild); + _created.return = returnFiber; + return _created; } - } - } - } else { - // This is a LegacyHidden component. - reuseSuspenseHandlerOnStack(fiber); - } -} -function reuseSuspenseHandlerOnStack(fiber) { - pushSuspenseListContext(fiber, suspenseStackCursor.current); - push(suspenseHandlerStackCursor, getSuspenseHandler(), fiber); -} -function getSuspenseHandler() { - return suspenseHandlerStackCursor.current; -} -function popSuspenseHandler(fiber) { - pop(suspenseHandlerStackCursor, fiber); - if (shellBoundary === fiber) { - // Popping back into the shell. - shellBoundary = null; - } - - popSuspenseListContext(fiber); -} // SuspenseList context -// TODO: Move to a separate module? We may change the SuspenseList -// implementation to hide/show in the commit phase, anyway. + case REACT_PORTAL_TYPE: { + var _created2 = createFiberFromPortal( + newChild, + returnFiber.mode, + lanes + ); -var DefaultSuspenseContext = 0; -var SubtreeSuspenseContextMask = 1; // ForceSuspenseFallback can be used by SuspenseList to force newly added -// items into their fallback state during one of the render passes. + _created2.return = returnFiber; + return _created2; + } -var ForceSuspenseFallback = 2; -var suspenseStackCursor = createCursor(DefaultSuspenseContext); -function hasSuspenseListContext(parentContext, flag) { - return (parentContext & flag) !== 0; -} -function setDefaultShallowSuspenseListContext(parentContext) { - return parentContext & SubtreeSuspenseContextMask; -} -function setShallowSuspenseListContext(parentContext, shallowContext) { - return (parentContext & SubtreeSuspenseContextMask) | shallowContext; -} -function pushSuspenseListContext(fiber, newContext) { - push(suspenseStackCursor, newContext, fiber); -} -function popSuspenseListContext(fiber) { - pop(suspenseStackCursor, fiber); -} - -// A non-null SuspenseState means that it is blocked for one reason or another. -// - A non-null dehydrated field means it's blocked pending hydration. -// - A non-null dehydrated field can use isSuspenseInstancePending or -// isSuspenseInstanceFallback to query the reason for being dehydrated. -// - A null dehydrated field means it's blocked by something suspending and -// we're currently showing a fallback instead. - -function findFirstSuspended(row) { - var node = row; + case REACT_LAZY_TYPE: { + var payload = newChild._payload; + var init = newChild._init; + return createChild(returnFiber, init(payload), lanes); + } + } - while (node !== null) { - if (node.tag === SuspenseComponent) { - var state = node.memoizedState; + if (isArray(newChild) || getIteratorFn(newChild)) { + var _created3 = createFiberFromFragment( + newChild, + returnFiber.mode, + lanes, + null + ); - if (state !== null) { - var dehydrated = state.dehydrated; + _created3.return = returnFiber; + return _created3; + } // Usable node types + // + // Unwrap the inner value and recursively call this function again. - if ( - dehydrated === null || - isSuspenseInstancePending() || - isSuspenseInstanceFallback() - ) { - return node; - } + if (typeof newChild.then === "function") { + var thenable = newChild; + return createChild(returnFiber, unwrapThenable(thenable), lanes); } - } else if ( - node.tag === SuspenseListComponent && // revealOrder undefined can't be trusted because it don't - // keep track of whether it suspended or not. - node.memoizedProps.revealOrder !== undefined - ) { - var didSuspend = (node.flags & DidCapture) !== NoFlags$1; - if (didSuspend) { - return node; + if ( + newChild.$$typeof === REACT_CONTEXT_TYPE || + newChild.$$typeof === REACT_SERVER_CONTEXT_TYPE + ) { + var context = newChild; + return createChild( + returnFiber, + readContextDuringReconcilation(returnFiber, context, lanes), + lanes + ); } - } else if (node.child !== null) { - node.child.return = node; - node = node.child; - continue; + + throwOnInvalidObjectType(returnFiber, newChild); } - if (node === row) { - return null; + { + if (typeof newChild === "function") { + warnOnFunctionType(returnFiber); + } } - while (node.sibling === null) { - if (node.return === null || node.return === row) { + return null; + } + + function updateSlot(returnFiber, oldFiber, newChild, lanes) { + // Update the fiber if the keys match, otherwise return null. + var key = oldFiber !== null ? oldFiber.key : null; + + if ( + (typeof newChild === "string" && newChild !== "") || + typeof newChild === "number" + ) { + // Text nodes don't have keys. If the previous node is implicitly keyed + // we can continue to replace it without aborting even if it is not a text + // node. + if (key !== null) { return null; } - node = node.return; + return updateTextNode(returnFiber, oldFiber, "" + newChild, lanes); } - node.sibling.return = node.return; - node = node.sibling; - } - - return null; -} + if (typeof newChild === "object" && newChild !== null) { + switch (newChild.$$typeof) { + case REACT_ELEMENT_TYPE: { + if (newChild.key === key) { + return updateElement(returnFiber, oldFiber, newChild, lanes); + } else { + return null; + } + } -var NoFlags = - /* */ - 0; // Represents whether effect should fire. + case REACT_PORTAL_TYPE: { + if (newChild.key === key) { + return updatePortal(returnFiber, oldFiber, newChild, lanes); + } else { + return null; + } + } -var HasEffect = - /* */ - 1; // Represents the phase in which the effect (not the clean-up) fires. + case REACT_LAZY_TYPE: { + var payload = newChild._payload; + var init = newChild._init; + return updateSlot(returnFiber, oldFiber, init(payload), lanes); + } + } -var Insertion = - /* */ - 2; -var Layout = - /* */ - 4; -var Passive = - /* */ - 8; + if (isArray(newChild) || getIteratorFn(newChild)) { + if (key !== null) { + return null; + } -// and should be reset before starting a new render. -// This tracks which mutable sources need to be reset after a render. + return updateFragment(returnFiber, oldFiber, newChild, lanes, null); + } // Usable node types + // + // Unwrap the inner value and recursively call this function again. -var workInProgressSources = []; -var rendererSigil$1; + if (typeof newChild.then === "function") { + var thenable = newChild; + return updateSlot( + returnFiber, + oldFiber, + unwrapThenable(thenable), + lanes + ); + } -{ - // Used to detect multiple renderers using the same mutable source. - rendererSigil$1 = {}; -} + if ( + newChild.$$typeof === REACT_CONTEXT_TYPE || + newChild.$$typeof === REACT_SERVER_CONTEXT_TYPE + ) { + var context = newChild; + return updateSlot( + returnFiber, + oldFiber, + readContextDuringReconcilation(returnFiber, context, lanes), + lanes + ); + } -function markSourceAsDirty(mutableSource) { - workInProgressSources.push(mutableSource); -} -function resetWorkInProgressVersions() { - for (var i = 0; i < workInProgressSources.length; i++) { - var mutableSource = workInProgressSources[i]; + throwOnInvalidObjectType(returnFiber, newChild); + } { - mutableSource._workInProgressVersionSecondary = null; + if (typeof newChild === "function") { + warnOnFunctionType(returnFiber); + } } - } - workInProgressSources.length = 0; -} -function getWorkInProgressVersion(mutableSource) { - { - return mutableSource._workInProgressVersionSecondary; - } -} -function setWorkInProgressVersion(mutableSource, version) { - { - mutableSource._workInProgressVersionSecondary = version; + return null; } - workInProgressSources.push(mutableSource); -} -function warnAboutMultipleRenderersDEV(mutableSource) { - { - { - if (mutableSource._currentSecondaryRenderer == null) { - mutableSource._currentSecondaryRenderer = rendererSigil$1; - } else if (mutableSource._currentSecondaryRenderer !== rendererSigil$1) { - error( - "Detected multiple renderers concurrently rendering the " + - "same mutable source. This is currently unsupported." - ); - } + function updateFromMap( + existingChildren, + returnFiber, + newIdx, + newChild, + lanes + ) { + if ( + (typeof newChild === "string" && newChild !== "") || + typeof newChild === "number" + ) { + // Text nodes don't have keys, so we neither have to check the old nor + // new node for the key. If both are text nodes, they match. + var matchedFiber = existingChildren.get(newIdx) || null; + return updateTextNode(returnFiber, matchedFiber, "" + newChild, lanes); } - } -} // Eager reads the version of a mutable source and stores it on the root. -var ReactCurrentDispatcher$1 = ReactSharedInternals.ReactCurrentDispatcher, - ReactCurrentBatchConfig$2 = ReactSharedInternals.ReactCurrentBatchConfig; -var didWarnAboutMismatchedHooksForComponent; -var didWarnUncachedGetSnapshot; -var didWarnAboutUseWrappedInTryCatch; + if (typeof newChild === "object" && newChild !== null) { + switch (newChild.$$typeof) { + case REACT_ELEMENT_TYPE: { + var _matchedFiber = + existingChildren.get( + newChild.key === null ? newIdx : newChild.key + ) || null; -{ - didWarnAboutMismatchedHooksForComponent = new Set(); - didWarnAboutUseWrappedInTryCatch = new Set(); -} // These are set right before calling the component. - -var renderLanes$1 = NoLanes; // The work-in-progress fiber. I've named it differently to distinguish it from -// the work-in-progress hook. - -var currentlyRenderingFiber$1 = null; // Hooks are stored as a linked list on the fiber's memoizedState field. The -// current hook list is the list that belongs to the current fiber. The -// work-in-progress hook list is a new list that will be added to the -// work-in-progress fiber. - -var currentHook = null; -var workInProgressHook = null; // Whether an update was scheduled at any point during the render phase. This -// does not get reset if we do another render pass; only when we're completely -// finished evaluating this component. This is an optimization so we know -// whether we need to clear render phase updates after a throw. - -var didScheduleRenderPhaseUpdate = false; // Where an update was scheduled only during the current render pass. This -// gets reset after each attempt. -// TODO: Maybe there's some way to consolidate this with -// `didScheduleRenderPhaseUpdate`. Or with `numberOfReRenders`. + return updateElement(returnFiber, _matchedFiber, newChild, lanes); + } -var didScheduleRenderPhaseUpdateDuringThisPass = false; -var shouldDoubleInvokeUserFnsInHooksDEV = false; // Counts the number of useId hooks in this component. + case REACT_PORTAL_TYPE: { + var _matchedFiber2 = + existingChildren.get( + newChild.key === null ? newIdx : newChild.key + ) || null; -var thenableIndexCounter = 0; -var thenableState = null; // Used for ids that are generated completely client-side (i.e. not during -// hydration). This counter is global, so client ids are not stable across -// render attempts. + return updatePortal(returnFiber, _matchedFiber2, newChild, lanes); + } -var globalClientIdCounter = 0; -var RE_RENDER_LIMIT = 25; // In DEV, this is the name of the currently executing primitive hook + case REACT_LAZY_TYPE: + var payload = newChild._payload; + var init = newChild._init; + return updateFromMap( + existingChildren, + returnFiber, + newIdx, + init(payload), + lanes + ); + } -var currentHookNameInDev = null; // In DEV, this list ensures that hooks are called in the same order between renders. -// The list stores the order of hooks used during the initial render (mount). -// Subsequent renders (updates) reference this list. + if (isArray(newChild) || getIteratorFn(newChild)) { + var _matchedFiber3 = existingChildren.get(newIdx) || null; -var hookTypesDev = null; -var hookTypesUpdateIndexDev = -1; // In DEV, this tracks whether currently rendering component needs to ignore -// the dependencies for Hooks that need them (e.g. useEffect or useMemo). -// When true, such Hooks will always be "remounted". Only used during hot reload. + return updateFragment( + returnFiber, + _matchedFiber3, + newChild, + lanes, + null + ); + } // Usable node types + // + // Unwrap the inner value and recursively call this function again. -var ignorePreviousDependencies = false; + if (typeof newChild.then === "function") { + var thenable = newChild; + return updateFromMap( + existingChildren, + returnFiber, + newIdx, + unwrapThenable(thenable), + lanes + ); + } -function mountHookTypesDev() { - { - var hookName = currentHookNameInDev; + if ( + newChild.$$typeof === REACT_CONTEXT_TYPE || + newChild.$$typeof === REACT_SERVER_CONTEXT_TYPE + ) { + var context = newChild; + return updateFromMap( + existingChildren, + returnFiber, + newIdx, + readContextDuringReconcilation(returnFiber, context, lanes), + lanes + ); + } - if (hookTypesDev === null) { - hookTypesDev = [hookName]; - } else { - hookTypesDev.push(hookName); + throwOnInvalidObjectType(returnFiber, newChild); } - } -} - -function updateHookTypesDev() { - { - var hookName = currentHookNameInDev; - if (hookTypesDev !== null) { - hookTypesUpdateIndexDev++; - - if (hookTypesDev[hookTypesUpdateIndexDev] !== hookName) { - warnOnHookMismatchInDev(hookName); + { + if (typeof newChild === "function") { + warnOnFunctionType(returnFiber); } } - } -} -function checkDepsAreArrayDev(deps) { - { - if (deps !== undefined && deps !== null && !isArray(deps)) { - // Verify deps, but only on mount to avoid extra checks. - // It's unlikely their type would change as usually you define them inline. - error( - "%s received a final argument that is not an array (instead, received `%s`). When " + - "specified, the final argument must be an array.", - currentHookNameInDev, - typeof deps - ); - } + return null; } -} + /** + * Warns if there is a duplicate or missing key + */ -function warnOnHookMismatchInDev(currentHookName) { - { - var componentName = getComponentNameFromFiber(currentlyRenderingFiber$1); + function warnOnInvalidKey(child, knownKeys, returnFiber) { + { + if (typeof child !== "object" || child === null) { + return knownKeys; + } - if (!didWarnAboutMismatchedHooksForComponent.has(componentName)) { - didWarnAboutMismatchedHooksForComponent.add(componentName); + switch (child.$$typeof) { + case REACT_ELEMENT_TYPE: + case REACT_PORTAL_TYPE: + warnForMissingKey(child, returnFiber); + var key = child.key; - if (hookTypesDev !== null) { - var table = ""; - var secondColumnStart = 30; + if (typeof key !== "string") { + break; + } - for (var i = 0; i <= hookTypesUpdateIndexDev; i++) { - var oldHookName = hookTypesDev[i]; - var newHookName = - i === hookTypesUpdateIndexDev ? currentHookName : oldHookName; - var row = i + 1 + ". " + oldHookName; // Extra space so second column lines up - // lol @ IE not supporting String#repeat + if (knownKeys === null) { + knownKeys = new Set(); + knownKeys.add(key); + break; + } - while (row.length < secondColumnStart) { - row += " "; + if (!knownKeys.has(key)) { + knownKeys.add(key); + break; } - row += newHookName + "\n"; - table += row; - } + error( + "Encountered two children with the same key, `%s`. " + + "Keys should be unique so that components maintain their identity " + + "across updates. Non-unique keys may cause children to be " + + "duplicated and/or omitted — the behavior is unsupported and " + + "could change in a future version.", + key + ); - error( - "React has detected a change in the order of Hooks called by %s. " + - "This will lead to bugs and errors if not fixed. " + - "For more information, read the Rules of Hooks: https://reactjs.org/link/rules-of-hooks\n\n" + - " Previous render Next render\n" + - " ------------------------------------------------------\n" + - "%s" + - " ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n", - componentName, - table - ); + break; + + case REACT_LAZY_TYPE: + var payload = child._payload; + var init = child._init; + warnOnInvalidKey(init(payload), knownKeys, returnFiber); + break; } } - } -} - -function throwInvalidHookError() { - throw new Error( - "Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for" + - " one of the following reasons:\n" + - "1. You might have mismatching versions of React and the renderer (such as React DOM)\n" + - "2. You might be breaking the Rules of Hooks\n" + - "3. You might have more than one copy of React in the same app\n" + - "See https://reactjs.org/link/invalid-hook-call for tips about how to debug and fix this problem." - ); -} -function areHookInputsEqual(nextDeps, prevDeps) { - { - if (ignorePreviousDependencies) { - // Only true when this component is being hot reloaded. - return false; - } + return knownKeys; } - if (prevDeps === null) { + function reconcileChildrenArray( + returnFiber, + currentFirstChild, + newChildren, + lanes + ) { + // This algorithm can't optimize by searching from both ends since we + // don't have backpointers on fibers. I'm trying to see how far we can get + // with that model. If it ends up not being worth the tradeoffs, we can + // add it later. + // Even with a two ended optimization, we'd want to optimize for the case + // where there are few changes and brute force the comparison instead of + // going for the Map. It'd like to explore hitting that path first in + // forward-only mode and only go for the Map once we notice that we need + // lots of look ahead. This doesn't handle reversal as well as two ended + // search but that's unusual. Besides, for the two ended optimization to + // work on Iterables, we'd need to copy the whole set. + // In this first iteration, we'll just live with hitting the bad case + // (adding everything to a Map) in for every insert/move. + // If you change this code, also update reconcileChildrenIterator() which + // uses the same algorithm. { - error( - "%s received a final argument during this render, but not during " + - "the previous render. Even though the final argument is optional, " + - "its type cannot change between renders.", - currentHookNameInDev - ); - } + // First, validate keys. + var knownKeys = null; - return false; - } + for (var i = 0; i < newChildren.length; i++) { + var child = newChildren[i]; + knownKeys = warnOnInvalidKey(child, knownKeys, returnFiber); + } + } - { - // Don't bother comparing lengths in prod because these arrays should be - // passed inline. - if (nextDeps.length !== prevDeps.length) { - error( - "The final argument passed to %s changed size between renders. The " + - "order and size of this array must remain constant.\n\n" + - "Previous: %s\n" + - "Incoming: %s", - currentHookNameInDev, - "[" + prevDeps.join(", ") + "]", - "[" + nextDeps.join(", ") + "]" - ); - } - } // $FlowFixMe[incompatible-use] found when upgrading Flow + var resultingFirstChild = null; + var previousNewFiber = null; + var oldFiber = currentFirstChild; + var lastPlacedIndex = 0; + var newIdx = 0; + var nextOldFiber = null; - for (var i = 0; i < prevDeps.length && i < nextDeps.length; i++) { - // $FlowFixMe[incompatible-use] found when upgrading Flow - if (objectIs(nextDeps[i], prevDeps[i])) { - continue; - } + for (; oldFiber !== null && newIdx < newChildren.length; newIdx++) { + if (oldFiber.index > newIdx) { + nextOldFiber = oldFiber; + oldFiber = null; + } else { + nextOldFiber = oldFiber.sibling; + } - return false; - } + var newFiber = updateSlot( + returnFiber, + oldFiber, + newChildren[newIdx], + lanes + ); - return true; -} + if (newFiber === null) { + // TODO: This breaks on empty slots like null children. That's + // unfortunate because it triggers the slow path all the time. We need + // a better way to communicate whether this was a miss or null, + // boolean, undefined, etc. + if (oldFiber === null) { + oldFiber = nextOldFiber; + } -function renderWithHooks( - current, - workInProgress, - Component, - props, - secondArg, - nextRenderLanes -) { - renderLanes$1 = nextRenderLanes; - currentlyRenderingFiber$1 = workInProgress; + break; + } - { - hookTypesDev = current !== null ? current._debugHookTypes : null; - hookTypesUpdateIndexDev = -1; // Used for hot reloading: + if (shouldTrackSideEffects) { + if (oldFiber && newFiber.alternate === null) { + // We matched the slot, but we didn't reuse the existing fiber, so we + // need to delete the existing child. + deleteChild(returnFiber, oldFiber); + } + } - ignorePreviousDependencies = - current !== null && current.type !== workInProgress.type; - } + lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx); - workInProgress.memoizedState = null; - workInProgress.updateQueue = null; - workInProgress.lanes = NoLanes; // The following should have already been reset - // currentHook = null; - // workInProgressHook = null; - // didScheduleRenderPhaseUpdate = false; - // localIdCounter = 0; - // thenableIndexCounter = 0; - // thenableState = null; - // TODO Warn if no hooks are used at all during mount, then some are used during update. - // Currently we will identify the update render as a mount because memoizedState === null. - // This is tricky because it's valid for certain types of components (e.g. React.lazy) - // Using memoizedState to differentiate between mount/update only works if at least one stateful hook is used. - // Non-stateful hooks (e.g. context) don't get added to memoizedState, - // so memoizedState would be null during updates and mounts. + if (previousNewFiber === null) { + // TODO: Move out of the loop. This only happens for the first run. + resultingFirstChild = newFiber; + } else { + // TODO: Defer siblings if we're not at the right index for this slot. + // I.e. if we had null values before, then we want to defer this + // for each null value. However, we also don't want to call updateSlot + // with the previous one. + previousNewFiber.sibling = newFiber; + } - { - if (current !== null && current.memoizedState !== null) { - ReactCurrentDispatcher$1.current = HooksDispatcherOnUpdateInDEV; - } else if (hookTypesDev !== null) { - // This dispatcher handles an edge case where a component is updating, - // but no stateful hooks have been used. - // We want to match the production code behavior (which will use HooksDispatcherOnMount), - // but with the extra DEV validation to ensure hooks ordering hasn't changed. - // This dispatcher does that. - ReactCurrentDispatcher$1.current = - HooksDispatcherOnMountWithHookTypesInDEV; - } else { - ReactCurrentDispatcher$1.current = HooksDispatcherOnMountInDEV; + previousNewFiber = newFiber; + oldFiber = nextOldFiber; } - } // In Strict Mode, during development, user functions are double invoked to - // help detect side effects. The logic for how this is implemented for in - // hook components is a bit complex so let's break it down. - // - // We will invoke the entire component function twice. However, during the - // second invocation of the component, the hook state from the first - // invocation will be reused. That means things like `useMemo` functions won't - // run again, because the deps will match and the memoized result will - // be reused. - // - // We want memoized functions to run twice, too, so account for this, user - // functions are double invoked during the *first* invocation of the component - // function, and are *not* double invoked during the second incovation: - // - // - First execution of component function: user functions are double invoked - // - Second execution of component function (in Strict Mode, during - // development): user functions are not double invoked. - // - // This is intentional for a few reasons; most importantly, it's because of - // how `use` works when something suspends: it reuses the promise that was - // passed during the first attempt. This is itself a form of memoization. - // We need to be able to memoize the reactive inputs to the `use` call using - // a hook (i.e. `useMemo`), which means, the reactive inputs to `use` must - // come from the same component invocation as the output. - // - // There are plenty of tests to ensure this behavior is correct. - var shouldDoubleRenderDEV = - (workInProgress.mode & StrictLegacyMode) !== NoMode; - shouldDoubleInvokeUserFnsInHooksDEV = shouldDoubleRenderDEV; - var children = Component(props, secondArg); - shouldDoubleInvokeUserFnsInHooksDEV = false; // Check if there was a render phase update + if (newIdx === newChildren.length) { + // We've reached the end of the new children. We can delete the rest. + deleteRemainingChildren(returnFiber, oldFiber); - if (didScheduleRenderPhaseUpdateDuringThisPass) { - // Keep rendering until the component stabilizes (there are no more render - // phase updates). - children = renderWithHooksAgain( - workInProgress, - Component, - props, - secondArg - ); - } + return resultingFirstChild; + } - if (shouldDoubleRenderDEV) { - // In development, components are invoked twice to help detect side effects. - setIsStrictModeForDevtools(true); + if (oldFiber === null) { + // If we don't have any more existing children we can choose a fast path + // since the rest will all be insertions. + for (; newIdx < newChildren.length; newIdx++) { + var _newFiber = createChild(returnFiber, newChildren[newIdx], lanes); - try { - children = renderWithHooksAgain( - workInProgress, - Component, - props, - secondArg - ); - } finally { - setIsStrictModeForDevtools(false); - } - } + if (_newFiber === null) { + continue; + } - finishRenderingHooks(current, workInProgress); - return children; -} + lastPlacedIndex = placeChild(_newFiber, lastPlacedIndex, newIdx); -function finishRenderingHooks(current, workInProgress) { - // We can assume the previous dispatcher is always this one, since we set it - // at the beginning of the render phase and there's no re-entrance. - ReactCurrentDispatcher$1.current = ContextOnlyDispatcher; + if (previousNewFiber === null) { + // TODO: Move out of the loop. This only happens for the first run. + resultingFirstChild = _newFiber; + } else { + previousNewFiber.sibling = _newFiber; + } - { - workInProgress._debugHookTypes = hookTypesDev; - } // This check uses currentHook so that it works the same in DEV and prod bundles. - // hookTypesDev could catch more cases (e.g. context) but only in DEV bundles. + previousNewFiber = _newFiber; + } - var didRenderTooFewHooks = currentHook !== null && currentHook.next !== null; - renderLanes$1 = NoLanes; - currentlyRenderingFiber$1 = null; - currentHook = null; - workInProgressHook = null; + return resultingFirstChild; + } // Add all children to a key map for quick lookups. - { - currentHookNameInDev = null; - hookTypesDev = null; - hookTypesUpdateIndexDev = -1; // Confirm that a static flag was not added or removed since the last - // render. If this fires, it suggests that we incorrectly reset the static - // flags in some other part of the codebase. This has happened before, for - // example, in the SuspenseList implementation. + var existingChildren = mapRemainingChildren(returnFiber, oldFiber); // Keep scanning and use the map to restore deleted items as moves. - if ( - current !== null && - (current.flags & StaticMask) !== (workInProgress.flags & StaticMask) && // Disable this warning in legacy mode, because legacy Suspense is weird - // and creates false positives. To make this work in legacy mode, we'd - // need to mark fibers that commit in an incomplete state, somehow. For - // now I'll disable the warning that most of the bugs that would trigger - // it are either exclusive to concurrent mode or exist in both. - (current.mode & ConcurrentMode) !== NoMode - ) { - error( - "Internal React error: Expected static flag was missing. Please " + - "notify the React team." + for (; newIdx < newChildren.length; newIdx++) { + var _newFiber2 = updateFromMap( + existingChildren, + returnFiber, + newIdx, + newChildren[newIdx], + lanes ); - } - } - didScheduleRenderPhaseUpdate = false; // This is reset by checkDidRenderIdHook - // localIdCounter = 0; + if (_newFiber2 !== null) { + if (shouldTrackSideEffects) { + if (_newFiber2.alternate !== null) { + // The new fiber is a work in progress, but if there exists a + // current, that means that we reused the fiber. We need to delete + // it from the child list so that we don't add it to the deletion + // list. + existingChildren.delete( + _newFiber2.key === null ? newIdx : _newFiber2.key + ); + } + } - thenableIndexCounter = 0; - thenableState = null; - - if (didRenderTooFewHooks) { - throw new Error( - "Rendered fewer hooks than expected. This may be caused by an accidental " + - "early return statement." - ); - } - - { - if (checkIfUseWrappedInTryCatch()) { - var componentName = - getComponentNameFromFiber(workInProgress) || "Unknown"; + lastPlacedIndex = placeChild(_newFiber2, lastPlacedIndex, newIdx); - if (!didWarnAboutUseWrappedInTryCatch.has(componentName)) { - didWarnAboutUseWrappedInTryCatch.add(componentName); + if (previousNewFiber === null) { + resultingFirstChild = _newFiber2; + } else { + previousNewFiber.sibling = _newFiber2; + } - error( - "`use` was called from inside a try/catch block. This is not allowed " + - "and can lead to unexpected behavior. To handle errors triggered " + - "by `use`, wrap your component in a error boundary." - ); + previousNewFiber = _newFiber2; } } - } -} -function replaySuspendedComponentWithHooks( - current, - workInProgress, - Component, - props, - secondArg -) { - // This function is used to replay a component that previously suspended, - // after its data resolves. - // - // It's a simplified version of renderWithHooks, but it doesn't need to do - // most of the set up work because they weren't reset when we suspended; they - // only get reset when the component either completes (finishRenderingHooks) - // or unwinds (resetHooksOnUnwind). - { - hookTypesUpdateIndexDev = -1; // Used for hot reloading: + if (shouldTrackSideEffects) { + // Any existing children that weren't consumed above were deleted. We need + // to add them to the deletion list. + existingChildren.forEach(function (child) { + return deleteChild(returnFiber, child); + }); + } - ignorePreviousDependencies = - current !== null && current.type !== workInProgress.type; + return resultingFirstChild; } - var children = renderWithHooksAgain( - workInProgress, - Component, - props, - secondArg - ); - finishRenderingHooks(current, workInProgress); - return children; -} - -function renderWithHooksAgain(workInProgress, Component, props, secondArg) { - // This is used to perform another render pass. It's used when setState is - // called during render, and for double invoking components in Strict Mode - // during development. - // - // The state from the previous pass is reused whenever possible. So, state - // updates that were already processed are not processed again, and memoized - // functions (`useMemo`) are not invoked again. - // - // Keep rendering in a loop for as long as render phase updates continue to - // be scheduled. Use a counter to prevent infinite loops. - var numberOfReRenders = 0; - var children; - - do { - if (didScheduleRenderPhaseUpdateDuringThisPass) { - // It's possible that a use() value depended on a state that was updated in - // this rerender, so we need to watch for different thenables this time. - thenableState = null; - } - - thenableIndexCounter = 0; - didScheduleRenderPhaseUpdateDuringThisPass = false; + function reconcileChildrenIterator( + returnFiber, + currentFirstChild, + newChildrenIterable, + lanes + ) { + // This is the same implementation as reconcileChildrenArray(), + // but using the iterator instead. + var iteratorFn = getIteratorFn(newChildrenIterable); - if (numberOfReRenders >= RE_RENDER_LIMIT) { + if (typeof iteratorFn !== "function") { throw new Error( - "Too many re-renders. React limits the number of renders to prevent " + - "an infinite loop." + "An object is not an iterable. This error is likely caused by a bug in " + + "React. Please file an issue." ); } - numberOfReRenders += 1; - { - // Even when hot reloading, allow dependencies to stabilize - // after first render to prevent infinite render phase updates. - ignorePreviousDependencies = false; - } // Start over from the beginning of the list - - currentHook = null; - workInProgressHook = null; - workInProgress.updateQueue = null; + // We don't support rendering Generators because it's a mutation. + // See https://github.com/facebook/react/issues/12995 + if ( + typeof Symbol === "function" && // $FlowFixMe Flow doesn't know about toStringTag + newChildrenIterable[Symbol.toStringTag] === "Generator" + ) { + if (!didWarnAboutGenerators) { + error( + "Using Generators as children is unsupported and will likely yield " + + "unexpected results because enumerating a generator mutates it. " + + "You may convert it to an array with `Array.from()` or the " + + "`[...spread]` operator before rendering. Keep in mind " + + "you might need to polyfill these features for older browsers." + ); + } - { - // Also validate hook order for cascading updates. - hookTypesUpdateIndexDev = -1; - } + didWarnAboutGenerators = true; + } // Warn about using Maps as children - ReactCurrentDispatcher$1.current = HooksDispatcherOnRerenderInDEV; - children = Component(props, secondArg); - } while (didScheduleRenderPhaseUpdateDuringThisPass); + if (newChildrenIterable.entries === iteratorFn) { + if (!didWarnAboutMaps) { + error( + "Using Maps as children is not supported. " + + "Use an array of keyed ReactElements instead." + ); + } - return children; -} -function bailoutHooks(current, workInProgress, lanes) { - workInProgress.updateQueue = current.updateQueue; // TODO: Don't need to reset the flags here, because they're reset in the - // complete phase (bubbleProperties). + didWarnAboutMaps = true; + } // First, validate keys. + // We'll get a different iterator later for the main pass. - if ((workInProgress.mode & StrictEffectsMode) !== NoMode) { - workInProgress.flags &= ~( - MountPassiveDev | - MountLayoutDev | - Passive$1 | - Update - ); - } else { - workInProgress.flags &= ~(Passive$1 | Update); - } + var _newChildren = iteratorFn.call(newChildrenIterable); - current.lanes = removeLanes(current.lanes, lanes); -} -function resetHooksAfterThrow() { - // This is called immediaetly after a throw. It shouldn't reset the entire - // module state, because the work loop might decide to replay the component - // again without rewinding. - // - // It should only reset things like the current dispatcher, to prevent hooks - // from being called outside of a component. - // We can assume the previous dispatcher is always this one, since we set it - // at the beginning of the render phase and there's no re-entrance. - ReactCurrentDispatcher$1.current = ContextOnlyDispatcher; -} -function resetHooksOnUnwind() { - if (didScheduleRenderPhaseUpdate) { - // There were render phase updates. These are only valid for this render - // phase, which we are now aborting. Remove the updates from the queues so - // they do not persist to the next render. Do not remove updates from hooks - // that weren't processed. - // - // Only reset the updates from the queue if it has a clone. If it does - // not have a clone, that means it wasn't processed, and the updates were - // scheduled before we entered the render phase. - var hook = currentlyRenderingFiber$1.memoizedState; + if (_newChildren) { + var knownKeys = null; - while (hook !== null) { - var queue = hook.queue; + var _step = _newChildren.next(); - if (queue !== null) { - queue.pending = null; + for (; !_step.done; _step = _newChildren.next()) { + var child = _step.value; + knownKeys = warnOnInvalidKey(child, knownKeys, returnFiber); + } } + } - hook = hook.next; + var newChildren = iteratorFn.call(newChildrenIterable); + + if (newChildren == null) { + throw new Error("An iterable object provided no iterator."); } - didScheduleRenderPhaseUpdate = false; - } + var resultingFirstChild = null; + var previousNewFiber = null; + var oldFiber = currentFirstChild; + var lastPlacedIndex = 0; + var newIdx = 0; + var nextOldFiber = null; + var step = newChildren.next(); - renderLanes$1 = NoLanes; - currentlyRenderingFiber$1 = null; - currentHook = null; - workInProgressHook = null; + for ( + ; + oldFiber !== null && !step.done; + newIdx++, step = newChildren.next() + ) { + if (oldFiber.index > newIdx) { + nextOldFiber = oldFiber; + oldFiber = null; + } else { + nextOldFiber = oldFiber.sibling; + } - { - hookTypesDev = null; - hookTypesUpdateIndexDev = -1; - currentHookNameInDev = null; - } + var newFiber = updateSlot(returnFiber, oldFiber, step.value, lanes); - didScheduleRenderPhaseUpdateDuringThisPass = false; - thenableIndexCounter = 0; - thenableState = null; -} + if (newFiber === null) { + // TODO: This breaks on empty slots like null children. That's + // unfortunate because it triggers the slow path all the time. We need + // a better way to communicate whether this was a miss or null, + // boolean, undefined, etc. + if (oldFiber === null) { + oldFiber = nextOldFiber; + } -function mountWorkInProgressHook() { - var hook = { - memoizedState: null, - baseState: null, - baseQueue: null, - queue: null, - next: null - }; + break; + } - if (workInProgressHook === null) { - // This is the first hook in the list - currentlyRenderingFiber$1.memoizedState = workInProgressHook = hook; - } else { - // Append to the end of the list - workInProgressHook = workInProgressHook.next = hook; - } - - return workInProgressHook; -} + if (shouldTrackSideEffects) { + if (oldFiber && newFiber.alternate === null) { + // We matched the slot, but we didn't reuse the existing fiber, so we + // need to delete the existing child. + deleteChild(returnFiber, oldFiber); + } + } -function updateWorkInProgressHook() { - // This function is used both for updates and for re-renders triggered by a - // render phase update. It assumes there is either a current hook we can - // clone, or a work-in-progress hook from a previous render pass that we can - // use as a base. - var nextCurrentHook; + lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx); - if (currentHook === null) { - var current = currentlyRenderingFiber$1.alternate; + if (previousNewFiber === null) { + // TODO: Move out of the loop. This only happens for the first run. + resultingFirstChild = newFiber; + } else { + // TODO: Defer siblings if we're not at the right index for this slot. + // I.e. if we had null values before, then we want to defer this + // for each null value. However, we also don't want to call updateSlot + // with the previous one. + previousNewFiber.sibling = newFiber; + } - if (current !== null) { - nextCurrentHook = current.memoizedState; - } else { - nextCurrentHook = null; + previousNewFiber = newFiber; + oldFiber = nextOldFiber; } - } else { - nextCurrentHook = currentHook.next; - } - - var nextWorkInProgressHook; - - if (workInProgressHook === null) { - nextWorkInProgressHook = currentlyRenderingFiber$1.memoizedState; - } else { - nextWorkInProgressHook = workInProgressHook.next; - } - if (nextWorkInProgressHook !== null) { - // There's already a work-in-progress. Reuse it. - workInProgressHook = nextWorkInProgressHook; - nextWorkInProgressHook = workInProgressHook.next; - currentHook = nextCurrentHook; - } else { - // Clone from the current hook. - if (nextCurrentHook === null) { - var currentFiber = currentlyRenderingFiber$1.alternate; + if (step.done) { + // We've reached the end of the new children. We can delete the rest. + deleteRemainingChildren(returnFiber, oldFiber); - if (currentFiber === null) { - // This is the initial render. This branch is reached when the component - // suspends, resumes, then renders an additional hook. - // Should never be reached because we should switch to the mount dispatcher first. - throw new Error( - "Update hook called on initial render. This is likely a bug in React. Please file an issue." - ); - } else { - // This is an update. We should always have a current hook. - throw new Error("Rendered more hooks than during the previous render."); - } + return resultingFirstChild; } - currentHook = nextCurrentHook; - var newHook = { - memoizedState: currentHook.memoizedState, - baseState: currentHook.baseState, - baseQueue: currentHook.baseQueue, - queue: currentHook.queue, - next: null - }; + if (oldFiber === null) { + // If we don't have any more existing children we can choose a fast path + // since the rest will all be insertions. + for (; !step.done; newIdx++, step = newChildren.next()) { + var _newFiber3 = createChild(returnFiber, step.value, lanes); - if (workInProgressHook === null) { - // This is the first hook in the list. - currentlyRenderingFiber$1.memoizedState = workInProgressHook = newHook; - } else { - // Append to the end of the list. - workInProgressHook = workInProgressHook.next = newHook; - } - } + if (_newFiber3 === null) { + continue; + } - return workInProgressHook; -} // NOTE: defining two versions of this function to avoid size impact when this feature is disabled. -// Previously this function was inlined, the additional `memoCache` property makes it not inlined. + lastPlacedIndex = placeChild(_newFiber3, lastPlacedIndex, newIdx); -var createFunctionComponentUpdateQueue; + if (previousNewFiber === null) { + // TODO: Move out of the loop. This only happens for the first run. + resultingFirstChild = _newFiber3; + } else { + previousNewFiber.sibling = _newFiber3; + } -{ - createFunctionComponentUpdateQueue = function () { - return { - lastEffect: null, - events: null, - stores: null, - memoCache: null - }; - }; -} + previousNewFiber = _newFiber3; + } -function use(usable) { - if (usable !== null && typeof usable === "object") { - // $FlowFixMe[method-unbinding] - if (typeof usable.then === "function") { - // This is a thenable. - var thenable = usable; // Track the position of the thenable within this fiber. + return resultingFirstChild; + } // Add all children to a key map for quick lookups. - var index = thenableIndexCounter; - thenableIndexCounter += 1; + var existingChildren = mapRemainingChildren(returnFiber, oldFiber); // Keep scanning and use the map to restore deleted items as moves. - if (thenableState === null) { - thenableState = createThenableState(); - } + for (; !step.done; newIdx++, step = newChildren.next()) { + var _newFiber4 = updateFromMap( + existingChildren, + returnFiber, + newIdx, + step.value, + lanes + ); - var result = trackUsedThenable(thenableState, thenable, index); + if (_newFiber4 !== null) { + if (shouldTrackSideEffects) { + if (_newFiber4.alternate !== null) { + // The new fiber is a work in progress, but if there exists a + // current, that means that we reused the fiber. We need to delete + // it from the child list so that we don't add it to the deletion + // list. + existingChildren.delete( + _newFiber4.key === null ? newIdx : _newFiber4.key + ); + } + } - if ( - currentlyRenderingFiber$1.alternate === null && - (workInProgressHook === null - ? currentlyRenderingFiber$1.memoizedState === null - : workInProgressHook.next === null) - ) { - // Initial render, and either this is the first time the component is - // called, or there were no Hooks called after this use() the previous - // time (perhaps because it threw). Subsequent Hook calls should use the - // mount dispatcher. - { - ReactCurrentDispatcher$1.current = HooksDispatcherOnMountInDEV; + lastPlacedIndex = placeChild(_newFiber4, lastPlacedIndex, newIdx); + + if (previousNewFiber === null) { + resultingFirstChild = _newFiber4; + } else { + previousNewFiber.sibling = _newFiber4; } + + previousNewFiber = _newFiber4; } + } - return result; - } else if ( - usable.$$typeof === REACT_CONTEXT_TYPE || - usable.$$typeof === REACT_SERVER_CONTEXT_TYPE - ) { - var context = usable; - return readContext(context); + if (shouldTrackSideEffects) { + // Any existing children that weren't consumed above were deleted. We need + // to add them to the deletion list. + existingChildren.forEach(function (child) { + return deleteChild(returnFiber, child); + }); } - } // eslint-disable-next-line react-internal/safe-string-coercion - throw new Error("An unsupported type was passed to use(): " + String(usable)); -} + return resultingFirstChild; + } -function useMemoCache(size) { - var memoCache = null; // Fast-path, load memo cache from wip fiber if already prepared + function reconcileSingleTextNode( + returnFiber, + currentFirstChild, + textContent, + lanes + ) { + // There's no need to check for keys on text nodes since we don't have a + // way to define them. + if (currentFirstChild !== null && currentFirstChild.tag === HostText) { + // We already have an existing node so let's just update it and delete + // the rest. + deleteRemainingChildren(returnFiber, currentFirstChild.sibling); + var existing = useFiber(currentFirstChild, textContent); + existing.return = returnFiber; + return existing; + } // The existing first child is not a text node so we need to create one + // and delete the existing ones. - var updateQueue = currentlyRenderingFiber$1.updateQueue; + deleteRemainingChildren(returnFiber, currentFirstChild); + var created = createFiberFromText(textContent, returnFiber.mode, lanes); + created.return = returnFiber; + return created; + } - if (updateQueue !== null) { - memoCache = updateQueue.memoCache; - } // Otherwise clone from the current fiber + function reconcileSingleElement( + returnFiber, + currentFirstChild, + element, + lanes + ) { + var key = element.key; + var child = currentFirstChild; - if (memoCache == null) { - var current = currentlyRenderingFiber$1.alternate; + while (child !== null) { + // TODO: If key === null and child.key === null, then this only applies to + // the first item in the list. + if (child.key === key) { + var elementType = element.type; - if (current !== null) { - var currentUpdateQueue = current.updateQueue; + if (elementType === REACT_FRAGMENT_TYPE) { + if (child.tag === Fragment) { + deleteRemainingChildren(returnFiber, child.sibling); + var existing = useFiber(child, element.props.children); + existing.return = returnFiber; - if (currentUpdateQueue !== null) { - var currentMemoCache = currentUpdateQueue.memoCache; + { + existing._debugSource = element._source; + existing._debugOwner = element._owner; + } - if (currentMemoCache != null) { - memoCache = { - data: currentMemoCache.data.map(function (array) { - return array.slice(); - }), - index: 0 - }; - } - } - } - } // Finally fall back to allocating a fresh instance of the cache + return existing; + } + } else { + if ( + child.elementType === elementType || // Keep this check inline so it only runs on the false path: + isCompatibleFamilyForHotReloading(child, element) || // Lazy types should reconcile their resolved type. + // We need to do this after the Hot Reloading check above, + // because hot reloading has different semantics than prod because + // it doesn't resuspend. So we can't let the call below suspend. + (typeof elementType === "object" && + elementType !== null && + elementType.$$typeof === REACT_LAZY_TYPE && + resolveLazy(elementType) === child.type) + ) { + deleteRemainingChildren(returnFiber, child.sibling); - if (memoCache == null) { - memoCache = { - data: [], - index: 0 - }; - } + var _existing = useFiber(child, element.props); - if (updateQueue === null) { - updateQueue = createFunctionComponentUpdateQueue(); - currentlyRenderingFiber$1.updateQueue = updateQueue; - } + _existing.ref = coerceRef(returnFiber, child, element); + _existing.return = returnFiber; - updateQueue.memoCache = memoCache; - var data = memoCache.data[memoCache.index]; + { + _existing._debugSource = element._source; + _existing._debugOwner = element._owner; + } - if (data === undefined) { - data = memoCache.data[memoCache.index] = new Array(size); + return _existing; + } + } // Didn't match. - for (var i = 0; i < size; i++) { - data[i] = REACT_MEMO_CACHE_SENTINEL; + deleteRemainingChildren(returnFiber, child); + break; + } else { + deleteChild(returnFiber, child); + } + + child = child.sibling; } - } else if (data.length !== size) { - // TODO: consider warning or throwing here - { - error( - "Expected a constant size argument for each invocation of useMemoCache. " + - "The previous cache was allocated with size %s but size %s was requested.", - data.length, - size + + if (element.type === REACT_FRAGMENT_TYPE) { + var created = createFiberFromFragment( + element.props.children, + returnFiber.mode, + lanes, + element.key ); + created.return = returnFiber; + return created; + } else { + var _created4 = createFiberFromElement(element, returnFiber.mode, lanes); + + _created4.ref = coerceRef(returnFiber, currentFirstChild, element); + _created4.return = returnFiber; + return _created4; } } - memoCache.index++; - return data; -} - -function basicStateReducer(state, action) { - // $FlowFixMe: Flow doesn't like mixed types - return typeof action === "function" ? action(state) : action; -} + function reconcileSinglePortal( + returnFiber, + currentFirstChild, + portal, + lanes + ) { + var key = portal.key; + var child = currentFirstChild; -function mountReducer(reducer, initialArg, init) { - var hook = mountWorkInProgressHook(); - var initialState; + while (child !== null) { + // TODO: If key === null and child.key === null, then this only applies to + // the first item in the list. + if (child.key === key) { + if ( + child.tag === HostPortal && + child.stateNode.containerInfo === portal.containerInfo && + child.stateNode.implementation === portal.implementation + ) { + deleteRemainingChildren(returnFiber, child.sibling); + var existing = useFiber(child, portal.children || []); + existing.return = returnFiber; + return existing; + } else { + deleteRemainingChildren(returnFiber, child); + break; + } + } else { + deleteChild(returnFiber, child); + } - if (init !== undefined) { - initialState = init(initialArg); - } else { - initialState = initialArg; - } + child = child.sibling; + } - hook.memoizedState = hook.baseState = initialState; - var queue = { - pending: null, - lanes: NoLanes, - dispatch: null, - lastRenderedReducer: reducer, - lastRenderedState: initialState - }; - hook.queue = queue; - var dispatch = (queue.dispatch = dispatchReducerAction.bind( - null, - currentlyRenderingFiber$1, - queue - )); - return [hook.memoizedState, dispatch]; -} + var created = createFiberFromPortal(portal, returnFiber.mode, lanes); + created.return = returnFiber; + return created; + } // This API will tag the children with the side-effect of the reconciliation + // itself. They will be added to the side-effect list as we pass through the + // children and the parent. -function updateReducer(reducer, initialArg, init) { - var hook = updateWorkInProgressHook(); - var queue = hook.queue; + function reconcileChildFibersImpl( + returnFiber, + currentFirstChild, + newChild, + lanes + ) { + // This function is not recursive. + // If the top level item is an array, we treat it as a set of children, + // not as a fragment. Nested arrays on the other hand will be treated as + // fragment nodes. Recursion happens at the normal flow. + // Handle top level unkeyed fragments as if they were arrays. + // This leads to an ambiguity between <>{[...]} and <>.... + // We treat the ambiguous cases above the same. + // TODO: Let's use recursion like we do for Usable nodes? + var isUnkeyedTopLevelFragment = + typeof newChild === "object" && + newChild !== null && + newChild.type === REACT_FRAGMENT_TYPE && + newChild.key === null; - if (queue === null) { - throw new Error( - "Should have a queue. This is likely a bug in React. Please file an issue." - ); - } + if (isUnkeyedTopLevelFragment) { + newChild = newChild.props.children; + } // Handle object types - queue.lastRenderedReducer = reducer; - var current = currentHook; // The last rebase update that is NOT part of the base state. + if (typeof newChild === "object" && newChild !== null) { + switch (newChild.$$typeof) { + case REACT_ELEMENT_TYPE: + return placeSingleChild( + reconcileSingleElement( + returnFiber, + currentFirstChild, + newChild, + lanes + ) + ); - var baseQueue = current.baseQueue; // The last pending update that hasn't been processed yet. + case REACT_PORTAL_TYPE: + return placeSingleChild( + reconcileSinglePortal( + returnFiber, + currentFirstChild, + newChild, + lanes + ) + ); - var pendingQueue = queue.pending; + case REACT_LAZY_TYPE: + var payload = newChild._payload; + var init = newChild._init; // TODO: This function is supposed to be non-recursive. - if (pendingQueue !== null) { - // We have new updates that haven't been processed yet. - // We'll add them to the base queue. - if (baseQueue !== null) { - // Merge the pending queue and the base queue. - var baseFirst = baseQueue.next; - var pendingFirst = pendingQueue.next; - baseQueue.next = pendingFirst; - pendingQueue.next = baseFirst; - } + return reconcileChildFibers( + returnFiber, + currentFirstChild, + init(payload), + lanes + ); + } - { - if (current.baseQueue !== baseQueue) { - // Internal invariant that should never happen, but feasibly could in - // the future if we implement resuming, or some form of that. - error( - "Internal error: Expected work-in-progress queue to be a clone. " + - "This is a bug in React." + if (isArray(newChild)) { + return reconcileChildrenArray( + returnFiber, + currentFirstChild, + newChild, + lanes ); } - } - - current.baseQueue = baseQueue = pendingQueue; - queue.pending = null; - } - - if (baseQueue !== null) { - // We have a queue to process. - var first = baseQueue.next; - var newState = current.baseState; - var newBaseState = null; - var newBaseQueueFirst = null; - var newBaseQueueLast = null; - var update = first; - do { - // An extra OffscreenLane bit is added to updates that were made to - // a hidden tree, so that we can distinguish them from updates that were - // already there when the tree was hidden. - var updateLane = removeLanes(update.lane, OffscreenLane); - var isHiddenUpdate = updateLane !== update.lane; // Check if this update was made while the tree was hidden. If so, then - // it's not a "base" update and we should disregard the extra base lanes - // that were added to renderLanes when we entered the Offscreen tree. - - var shouldSkipUpdate = isHiddenUpdate - ? !isSubsetOfLanes(getWorkInProgressRootRenderLanes(), updateLane) - : !isSubsetOfLanes(renderLanes$1, updateLane); - - if (shouldSkipUpdate) { - // Priority is insufficient. Skip this update. If this is the first - // skipped update, the previous update/state is the new base - // update/state. - var clone = { - lane: updateLane, - action: update.action, - hasEagerState: update.hasEagerState, - eagerState: update.eagerState, - next: null - }; - - if (newBaseQueueLast === null) { - newBaseQueueFirst = newBaseQueueLast = clone; - newBaseState = newState; - } else { - newBaseQueueLast = newBaseQueueLast.next = clone; - } // Update the remaining priority in the queue. - // TODO: Don't need to accumulate this. Instead, we can remove - // renderLanes from the original lanes. - - currentlyRenderingFiber$1.lanes = mergeLanes( - currentlyRenderingFiber$1.lanes, - updateLane + if (getIteratorFn(newChild)) { + return reconcileChildrenIterator( + returnFiber, + currentFirstChild, + newChild, + lanes ); - markSkippedUpdateLanes(updateLane); - } else { - // This update does have sufficient priority. - if (newBaseQueueLast !== null) { - var _clone = { - // This update is going to be committed so we never want uncommit - // it. Using NoLane works because 0 is a subset of all bitmasks, so - // this will never be skipped by the check above. - lane: NoLane, - action: update.action, - hasEagerState: update.hasEagerState, - eagerState: update.eagerState, - next: null - }; - newBaseQueueLast = newBaseQueueLast.next = _clone; - } // Process this update. - - var action = update.action; - - if (shouldDoubleInvokeUserFnsInHooksDEV) { - reducer(newState, action); - } + } // Usables are a valid React node type. When React encounters a Usable in + // a child position, it unwraps it using the same algorithm as `use`. For + // example, for promises, React will throw an exception to unwind the + // stack, then replay the component once the promise resolves. + // + // A difference from `use` is that React will keep unwrapping the value + // until it reaches a non-Usable type. + // + // e.g. Usable>> should resolve to T + // + // The structure is a bit unfortunate. Ideally, we shouldn't need to + // replay the entire begin phase of the parent fiber in order to reconcile + // the children again. This would require a somewhat significant refactor, + // because reconcilation happens deep within the begin phase, and + // depending on the type of work, not always at the end. We should + // consider as an future improvement. - if (update.hasEagerState) { - // If this update is a state update (not a reducer) and was processed eagerly, - // we can use the eagerly computed state - newState = update.eagerState; - } else { - newState = reducer(newState, action); - } + if (typeof newChild.then === "function") { + var thenable = newChild; + return reconcileChildFibersImpl( + returnFiber, + currentFirstChild, + unwrapThenable(thenable), + lanes + ); } - update = update.next; - } while (update !== null && update !== first); + if ( + newChild.$$typeof === REACT_CONTEXT_TYPE || + newChild.$$typeof === REACT_SERVER_CONTEXT_TYPE + ) { + var context = newChild; + return reconcileChildFibersImpl( + returnFiber, + currentFirstChild, + readContextDuringReconcilation(returnFiber, context, lanes), + lanes + ); + } - if (newBaseQueueLast === null) { - newBaseState = newState; - } else { - newBaseQueueLast.next = newBaseQueueFirst; - } // Mark that the fiber performed work, but only if the new state is - // different from the current state. + throwOnInvalidObjectType(returnFiber, newChild); + } - if (!objectIs(newState, hook.memoizedState)) { - markWorkInProgressReceivedUpdate(); + if ( + (typeof newChild === "string" && newChild !== "") || + typeof newChild === "number" + ) { + return placeSingleChild( + reconcileSingleTextNode( + returnFiber, + currentFirstChild, + "" + newChild, + lanes + ) + ); } - hook.memoizedState = newState; - hook.baseState = newBaseState; - hook.baseQueue = newBaseQueueLast; - queue.lastRenderedState = newState; - } + { + if (typeof newChild === "function") { + warnOnFunctionType(returnFiber); + } + } // Remaining cases are all treated as empty. - if (baseQueue === null) { - // `queue.lanes` is used for entangling transitions. We can set it back to - // zero once the queue is empty. - queue.lanes = NoLanes; + return deleteRemainingChildren(returnFiber, currentFirstChild); } - var dispatch = queue.dispatch; - return [hook.memoizedState, dispatch]; -} - -function rerenderReducer(reducer, initialArg, init) { - var hook = updateWorkInProgressHook(); - var queue = hook.queue; - - if (queue === null) { - throw new Error( - "Should have a queue. This is likely a bug in React. Please file an issue." + function reconcileChildFibers( + returnFiber, + currentFirstChild, + newChild, + lanes + ) { + // This indirection only exists so we can reset `thenableState` at the end. + // It should get inlined by Closure. + thenableIndexCounter$1 = 0; + var firstChildFiber = reconcileChildFibersImpl( + returnFiber, + currentFirstChild, + newChild, + lanes ); + thenableState$1 = null; // Don't bother to reset `thenableIndexCounter` to 0 because it always gets + // set at the beginning. + + return firstChildFiber; } - queue.lastRenderedReducer = reducer; // This is a re-render. Apply the new render phase updates to the previous - // work-in-progress hook. + return reconcileChildFibers; +} - var dispatch = queue.dispatch; - var lastRenderPhaseUpdate = queue.pending; - var newState = hook.memoizedState; +var reconcileChildFibers = createChildReconciler(true); +var mountChildFibers = createChildReconciler(false); +function resetChildReconcilerOnUnwind() { + // On unwind, clear any pending thenables that were used. + thenableState$1 = null; + thenableIndexCounter$1 = 0; +} +function cloneChildFibers(current, workInProgress) { + if (current !== null && workInProgress.child !== current.child) { + throw new Error("Resuming work not yet implemented."); + } - if (lastRenderPhaseUpdate !== null) { - // The queue doesn't persist past this render pass. - queue.pending = null; - var firstRenderPhaseUpdate = lastRenderPhaseUpdate.next; - var update = firstRenderPhaseUpdate; + if (workInProgress.child === null) { + return; + } - do { - // Process this render phase update. We don't have to check the - // priority because it will always be the same as the current - // render's. - var action = update.action; - newState = reducer(newState, action); - update = update.next; - } while (update !== firstRenderPhaseUpdate); // Mark that the fiber performed work, but only if the new state is - // different from the current state. + var currentChild = workInProgress.child; + var newChild = createWorkInProgress(currentChild, currentChild.pendingProps); + workInProgress.child = newChild; + newChild.return = workInProgress; - if (!objectIs(newState, hook.memoizedState)) { - markWorkInProgressReceivedUpdate(); - } + while (currentChild.sibling !== null) { + currentChild = currentChild.sibling; + newChild = newChild.sibling = createWorkInProgress( + currentChild, + currentChild.pendingProps + ); + newChild.return = workInProgress; + } - hook.memoizedState = newState; // Don't persist the state accumulated from the render phase updates to - // the base state unless the queue is empty. - // TODO: Not sure if this is the desired semantics, but it's what we - // do for gDSFP. I can't remember why. + newChild.sibling = null; +} // Reset a workInProgress child set to prepare it for a second pass. - if (hook.baseQueue === null) { - hook.baseState = newState; - } +function resetChildFibers(workInProgress, lanes) { + var child = workInProgress.child; - queue.lastRenderedState = newState; + while (child !== null) { + resetWorkInProgress(child, lanes); + child = child.sibling; } - - return [newState, dispatch]; } -function readFromUnsubscribedMutableSource(root, source, getSnapshot) { - { - warnAboutMultipleRenderersDEV(source); - } - - var getVersion = source._getVersion; - var version = getVersion(source._source); // Is it safe for this component to read from this source during the current render? +// TODO: This isn't being used yet, but it's intended to replace the +// InvisibleParentContext that is currently managed by SuspenseContext. - var isSafeToReadFromSource = false; // Check the version first. - // If this render has already been started with a specific version, - // we can use it alone to determine if we can safely read from the source. +var currentTreeHiddenStackCursor = createCursor(null); +var prevRenderLanesStackCursor = createCursor(NoLanes); +function pushHiddenContext(fiber, context) { + var prevRenderLanes = getRenderLanes(); + push(prevRenderLanesStackCursor, prevRenderLanes, fiber); + push(currentTreeHiddenStackCursor, context, fiber); // When rendering a subtree that's currently hidden, we must include all + // lanes that would have rendered if the hidden subtree hadn't been deferred. + // That is, in order to reveal content from hidden -> visible, we must commit + // all the updates that we skipped when we originally hid the tree. - var currentRenderVersion = getWorkInProgressVersion(source); + setRenderLanes(mergeLanes(prevRenderLanes, context.baseLanes)); +} +function reuseHiddenContextOnStack(fiber) { + // This subtree is not currently hidden, so we don't need to add any lanes + // to the render lanes. But we still need to push something to avoid a + // context mismatch. Reuse the existing context on the stack. + push(prevRenderLanesStackCursor, getRenderLanes(), fiber); + push( + currentTreeHiddenStackCursor, + currentTreeHiddenStackCursor.current, + fiber + ); +} +function popHiddenContext(fiber) { + // Restore the previous render lanes from the stack + setRenderLanes(prevRenderLanesStackCursor.current); + pop(currentTreeHiddenStackCursor, fiber); + pop(prevRenderLanesStackCursor, fiber); +} +function isCurrentTreeHidden() { + return currentTreeHiddenStackCursor.current !== null; +} - if (currentRenderVersion !== null) { - // It's safe to read if the store hasn't been mutated since the last time - // we read something. - isSafeToReadFromSource = currentRenderVersion === version; - } else { - // If there's no version, then this is the first time we've read from the - // source during the current render pass, so we need to do a bit more work. - // What we need to determine is if there are any hooks that already - // subscribed to the source, and if so, whether there are any pending - // mutations that haven't been synchronized yet. - // - // If there are no pending mutations, then `root.mutableReadLanes` will be - // empty, and we know we can safely read. - // - // If there *are* pending mutations, we may still be able to safely read - // if the currently rendering lanes are inclusive of the pending mutation - // lanes, since that guarantees that the value we're about to read from - // the source is consistent with the values that we read during the most - // recent mutation. - isSafeToReadFromSource = isSubsetOfLanes( - renderLanes$1, - root.mutableReadLanes - ); +// suspends, i.e. it's the nearest `catch` block on the stack. - if (isSafeToReadFromSource) { - // If it's safe to read from this source during the current render, - // store the version in case other components read from it. - // A changed version number will let those components know to throw and restart the render. - setWorkInProgressVersion(source, version); +var suspenseHandlerStackCursor = createCursor(null); // Represents the outermost boundary that is not visible in the current tree. +// Everything above this is the "shell". When this is null, it means we're +// rendering in the shell of the app. If it's non-null, it means we're rendering +// deeper than the shell, inside a new tree that wasn't already visible. +// +// The main way we use this concept is to determine whether showing a fallback +// would result in a desirable or undesirable loading state. Activing a fallback +// in the shell is considered an undersirable loading state, because it would +// mean hiding visible (albeit stale) content in the current tree — we prefer to +// show the stale content, rather than switch to a fallback. But showing a +// fallback in a new tree is fine, because there's no stale content to +// prefer instead. + +var shellBoundary = null; +function getShellBoundary() { + return shellBoundary; +} +function pushPrimaryTreeSuspenseHandler(handler) { + // TODO: Pass as argument + var current = handler.alternate; + // propagated a single level. For example, when ForceSuspenseFallback is set, + // it should only force the nearest Suspense boundary into fallback mode. + + pushSuspenseListContext( + handler, + setDefaultShallowSuspenseListContext(suspenseStackCursor.current) + ); // Experimental feature: Some Suspense boundaries are marked as having an + // to push a nested Suspense handler, because it will get replaced by the + // outer fallback, anyway. Consider this as a future optimization. + + push(suspenseHandlerStackCursor, handler, handler); + + if (shellBoundary === null) { + if (current === null || isCurrentTreeHidden()) { + // This boundary is not visible in the current UI. + shellBoundary = handler; + } else { + var prevState = current.memoizedState; + + if (prevState !== null) { + // This boundary is showing a fallback in the current UI. + shellBoundary = handler; + } } } +} +function pushFallbackTreeSuspenseHandler(fiber) { + // We're about to render the fallback. If something in the fallback suspends, + // it's akin to throwing inside of a `catch` block. This boundary should not + // capture. Reuse the existing handler on the stack. + reuseSuspenseHandlerOnStack(fiber); +} +function pushOffscreenSuspenseHandler(fiber) { + if (fiber.tag === OffscreenComponent) { + // A SuspenseList context is only pushed here to avoid a push/pop mismatch. + // Reuse the current value on the stack. + // TODO: We can avoid needing to push here by by forking popSuspenseHandler + // into separate functions for Suspense and Offscreen. + pushSuspenseListContext(fiber, suspenseStackCursor.current); + push(suspenseHandlerStackCursor, fiber, fiber); - if (isSafeToReadFromSource) { - var snapshot = getSnapshot(source._source); + if (shellBoundary !== null); + else { + var current = fiber.alternate; - { - if (typeof snapshot === "function") { - error( - "Mutable source should not return a function as the snapshot value. " + - "Functions may close over mutable values and cause tearing." - ); + if (current !== null) { + var prevState = current.memoizedState; + + if (prevState !== null) { + // This is the first boundary in the stack that's already showing + // a fallback. So everything outside is considered the shell. + shellBoundary = fiber; + } } } - - return snapshot; } else { - // This handles the special case of a mutable source being shared between renderers. - // In that case, if the source is mutated between the first and second renderer, - // The second renderer don't know that it needs to reset the WIP version during unwind, - // (because the hook only marks sources as dirty if it's written to their WIP version). - // That would cause this tear check to throw again and eventually be visible to the user. - // We can avoid this infinite loop by explicitly marking the source as dirty. - // - // This can lead to tearing in the first renderer when it resumes, - // but there's nothing we can do about that (short of throwing here and refusing to continue the render). - markSourceAsDirty(source); // Intentioally throw an error to force React to retry synchronously. During - // the synchronous retry, it will block interleaved mutations, so we should - // get a consistent read. Therefore, the following error should never be - // visible to the user. - // We expect this error not to be thrown during the synchronous retry, - // because we blocked interleaved mutations. - - throw new Error( - "Cannot read from mutable source during the current render without tearing. This may be a bug in React. Please file an issue." - ); + // This is a LegacyHidden component. + reuseSuspenseHandlerOnStack(fiber); } } +function reuseSuspenseHandlerOnStack(fiber) { + pushSuspenseListContext(fiber, suspenseStackCursor.current); + push(suspenseHandlerStackCursor, getSuspenseHandler(), fiber); +} +function getSuspenseHandler() { + return suspenseHandlerStackCursor.current; +} +function popSuspenseHandler(fiber) { + pop(suspenseHandlerStackCursor, fiber); -function useMutableSource(hook, source, getSnapshot, subscribe) { - var root = getWorkInProgressRoot(); - - if (root === null) { - throw new Error( - "Expected a work-in-progress root. This is a bug in React. Please file an issue." - ); + if (shellBoundary === fiber) { + // Popping back into the shell. + shellBoundary = null; } - var getVersion = source._getVersion; - var version = getVersion(source._source); - var dispatcher = ReactCurrentDispatcher$1.current; // eslint-disable-next-line prefer-const - - var _dispatcher$useState = dispatcher.useState(function () { - return readFromUnsubscribedMutableSource(root, source, getSnapshot); - }), - currentSnapshot = _dispatcher$useState[0], - setSnapshot = _dispatcher$useState[1]; + popSuspenseListContext(fiber); +} // SuspenseList context +// TODO: Move to a separate module? We may change the SuspenseList +// implementation to hide/show in the commit phase, anyway. - var snapshot = currentSnapshot; // Grab a handle to the state hook as well. - // We use it to clear the pending update queue if we have a new source. +var DefaultSuspenseContext = 0; +var SubtreeSuspenseContextMask = 1; // ForceSuspenseFallback can be used by SuspenseList to force newly added +// items into their fallback state during one of the render passes. - var stateHook = workInProgressHook; - var memoizedState = hook.memoizedState; - var refs = memoizedState.refs; - var prevGetSnapshot = refs.getSnapshot; - var prevSource = memoizedState.source; - var prevSubscribe = memoizedState.subscribe; - var fiber = currentlyRenderingFiber$1; - hook.memoizedState = { - refs: refs, - source: source, - subscribe: subscribe - }; // Sync the values needed by our subscription handler after each commit. +var ForceSuspenseFallback = 2; +var suspenseStackCursor = createCursor(DefaultSuspenseContext); +function hasSuspenseListContext(parentContext, flag) { + return (parentContext & flag) !== 0; +} +function setDefaultShallowSuspenseListContext(parentContext) { + return parentContext & SubtreeSuspenseContextMask; +} +function setShallowSuspenseListContext(parentContext, shallowContext) { + return (parentContext & SubtreeSuspenseContextMask) | shallowContext; +} +function pushSuspenseListContext(fiber, newContext) { + push(suspenseStackCursor, newContext, fiber); +} +function popSuspenseListContext(fiber) { + pop(suspenseStackCursor, fiber); +} - dispatcher.useEffect( - function () { - refs.getSnapshot = getSnapshot; // Normally the dispatch function for a state hook never changes, - // but this hook recreates the queue in certain cases to avoid updates from stale sources. - // handleChange() below needs to reference the dispatch function without re-subscribing, - // so we use a ref to ensure that it always has the latest version. +// A non-null SuspenseState means that it is blocked for one reason or another. +// - A non-null dehydrated field means it's blocked pending hydration. +// - A non-null dehydrated field can use isSuspenseInstancePending or +// isSuspenseInstanceFallback to query the reason for being dehydrated. +// - A null dehydrated field means it's blocked by something suspending and +// we're currently showing a fallback instead. - refs.setSnapshot = setSnapshot; // Check for a possible change between when we last rendered now. +function findFirstSuspended(row) { + var node = row; - var maybeNewVersion = getVersion(source._source); + while (node !== null) { + if (node.tag === SuspenseComponent) { + var state = node.memoizedState; - if (!objectIs(version, maybeNewVersion)) { - var maybeNewSnapshot = getSnapshot(source._source); + if (state !== null) { + var dehydrated = state.dehydrated; - { - if (typeof maybeNewSnapshot === "function") { - error( - "Mutable source should not return a function as the snapshot value. " + - "Functions may close over mutable values and cause tearing." - ); - } + if ( + dehydrated === null || + isSuspenseInstancePending() || + isSuspenseInstanceFallback() + ) { + return node; } - - if (!objectIs(snapshot, maybeNewSnapshot)) { - setSnapshot(maybeNewSnapshot); - var lane = requestUpdateLane(fiber); - markRootMutableRead(root, lane); - } // If the source mutated between render and now, - // there may be state updates already scheduled from the old source. - // Entangle the updates so that they render in the same batch. - - markRootEntangled(root, root.mutableReadLanes); } - }, - [getSnapshot, source, subscribe] - ); // If we got a new source or subscribe function, re-subscribe in a passive effect. - - dispatcher.useEffect( - function () { - var handleChange = function () { - var latestGetSnapshot = refs.getSnapshot; - var latestSetSnapshot = refs.setSnapshot; - - try { - latestSetSnapshot(latestGetSnapshot(source._source)); // Record a pending mutable source update with the same expiration time. + } else if ( + node.tag === SuspenseListComponent && // revealOrder undefined can't be trusted because it don't + // keep track of whether it suspended or not. + node.memoizedProps.revealOrder !== undefined + ) { + var didSuspend = (node.flags & DidCapture) !== NoFlags$1; - var lane = requestUpdateLane(fiber); - markRootMutableRead(root, lane); - } catch (error) { - // A selector might throw after a source mutation. - // e.g. it might try to read from a part of the store that no longer exists. - // In this case we should still schedule an update with React. - // Worst case the selector will throw again and then an error boundary will handle it. - latestSetSnapshot(function () { - throw error; - }); - } - }; + if (didSuspend) { + return node; + } + } else if (node.child !== null) { + node.child.return = node; + node = node.child; + continue; + } - var unsubscribe = subscribe(source._source, handleChange); + if (node === row) { + return null; + } - { - if (typeof unsubscribe !== "function") { - error( - "Mutable source subscribe function must return an unsubscribe function." - ); - } + while (node.sibling === null) { + if (node.return === null || node.return === row) { + return null; } - return unsubscribe; - }, - [source, subscribe] - ); // If any of the inputs to useMutableSource change, reading is potentially unsafe. - // - // If either the source or the subscription have changed we can't can't trust the update queue. - // Maybe the source changed in a way that the old subscription ignored but the new one depends on. - // - // If the getSnapshot function changed, we also shouldn't rely on the update queue. - // It's possible that the underlying source was mutated between the when the last "change" event fired, - // and when the current render (with the new getSnapshot function) is processed. - // - // In both cases, we need to throw away pending updates (since they are no longer relevant) - // and treat reading from the source as we do in the mount case. + node = node.return; + } - if ( - !objectIs(prevGetSnapshot, getSnapshot) || - !objectIs(prevSource, source) || - !objectIs(prevSubscribe, subscribe) - ) { - // Create a new queue and setState method, - // So if there are interleaved updates, they get pushed to the older queue. - // When this becomes current, the previous queue and dispatch method will be discarded, - // including any interleaving updates that occur. - var newQueue = { - pending: null, - lanes: NoLanes, - dispatch: null, - lastRenderedReducer: basicStateReducer, - lastRenderedState: snapshot - }; - newQueue.dispatch = setSnapshot = dispatchSetState.bind( - null, - currentlyRenderingFiber$1, - newQueue - ); - stateHook.queue = newQueue; - stateHook.baseQueue = null; - snapshot = readFromUnsubscribedMutableSource(root, source, getSnapshot); - stateHook.memoizedState = stateHook.baseState = snapshot; + node.sibling.return = node.return; + node = node.sibling; } - return snapshot; -} - -function mountMutableSource(source, getSnapshot, subscribe) { - var hook = mountWorkInProgressHook(); - hook.memoizedState = { - refs: { - getSnapshot: getSnapshot, - setSnapshot: null - }, - source: source, - subscribe: subscribe - }; - return useMutableSource(hook, source, getSnapshot, subscribe); -} - -function updateMutableSource(source, getSnapshot, subscribe) { - var hook = updateWorkInProgressHook(); - return useMutableSource(hook, source, getSnapshot, subscribe); + return null; } -function mountSyncExternalStore(subscribe, getSnapshot, getServerSnapshot) { - var fiber = currentlyRenderingFiber$1; - var hook = mountWorkInProgressHook(); - var nextSnapshot; +var NoFlags = + /* */ + 0; // Represents whether effect should fire. - { - nextSnapshot = getSnapshot(); +var HasEffect = + /* */ + 1; // Represents the phase in which the effect (not the clean-up) fires. - { - if (!didWarnUncachedGetSnapshot) { - var cachedSnapshot = getSnapshot(); +var Insertion = + /* */ + 2; +var Layout = + /* */ + 4; +var Passive = + /* */ + 8; - if (!objectIs(nextSnapshot, cachedSnapshot)) { - error( - "The result of getSnapshot should be cached to avoid an infinite loop" - ); +// and should be reset before starting a new render. +// This tracks which mutable sources need to be reset after a render. - didWarnUncachedGetSnapshot = true; - } - } - } // Unless we're rendering a blocking lane, schedule a consistency check. - // Right before committing, we will walk the tree and check if any of the - // stores were mutated. - // - // We won't do this if we're hydrating server-rendered content, because if - // the content is stale, it's already visible anyway. Instead we'll patch - // it up in a passive effect. +var workInProgressSources = []; +var rendererSigil$1; - var root = getWorkInProgressRoot(); +{ + // Used to detect multiple renderers using the same mutable source. + rendererSigil$1 = {}; +} - if (root === null) { - throw new Error( - "Expected a work-in-progress root. This is a bug in React. Please file an issue." - ); - } +function markSourceAsDirty(mutableSource) { + workInProgressSources.push(mutableSource); +} +function resetWorkInProgressVersions() { + for (var i = 0; i < workInProgressSources.length; i++) { + var mutableSource = workInProgressSources[i]; - if (!includesBlockingLane(root, renderLanes$1)) { - pushStoreConsistencyCheck(fiber, getSnapshot, nextSnapshot); + { + mutableSource._workInProgressVersionSecondary = null; } - } // Read the current snapshot from the store on every render. This breaks the - // normal rules of React, and only works because store updates are - // always synchronous. - - hook.memoizedState = nextSnapshot; - var inst = { - value: nextSnapshot, - getSnapshot: getSnapshot - }; - hook.queue = inst; // Schedule an effect to subscribe to the store. - - mountEffect(subscribeToStore.bind(null, fiber, inst, subscribe), [subscribe]); // Schedule an effect to update the mutable instance fields. We will update - // this whenever subscribe, getSnapshot, or value changes. Because there's no - // clean-up function, and we track the deps correctly, we can call pushEffect - // directly, without storing any additional state. For the same reason, we - // don't need to set a static flag, either. - // TODO: We can move this to the passive phase once we add a pre-commit - // consistency check. See the next comment. + } - fiber.flags |= Passive$1; - pushEffect( - HasEffect | Passive, - updateStoreInstance.bind(null, fiber, inst, nextSnapshot, getSnapshot), - undefined, - null - ); - return nextSnapshot; + workInProgressSources.length = 0; } - -function updateSyncExternalStore(subscribe, getSnapshot, getServerSnapshot) { - var fiber = currentlyRenderingFiber$1; - var hook = updateWorkInProgressHook(); // Read the current snapshot from the store on every render. This breaks the - // normal rules of React, and only works because store updates are - // always synchronous. - - var nextSnapshot = getSnapshot(); - +function getWorkInProgressVersion(mutableSource) { { - if (!didWarnUncachedGetSnapshot) { - var cachedSnapshot = getSnapshot(); + return mutableSource._workInProgressVersionSecondary; + } +} +function setWorkInProgressVersion(mutableSource, version) { + { + mutableSource._workInProgressVersionSecondary = version; + } - if (!objectIs(nextSnapshot, cachedSnapshot)) { + workInProgressSources.push(mutableSource); +} +function warnAboutMultipleRenderersDEV(mutableSource) { + { + { + if (mutableSource._currentSecondaryRenderer == null) { + mutableSource._currentSecondaryRenderer = rendererSigil$1; + } else if (mutableSource._currentSecondaryRenderer !== rendererSigil$1) { error( - "The result of getSnapshot should be cached to avoid an infinite loop" + "Detected multiple renderers concurrently rendering the " + + "same mutable source. This is currently unsupported." ); - - didWarnUncachedGetSnapshot = true; } } } +} // Eager reads the version of a mutable source and stores it on the root. - var prevSnapshot = (currentHook || hook).memoizedState; - var snapshotChanged = !objectIs(prevSnapshot, nextSnapshot); +var ReactCurrentDispatcher$1 = ReactSharedInternals.ReactCurrentDispatcher, + ReactCurrentBatchConfig$2 = ReactSharedInternals.ReactCurrentBatchConfig; +var didWarnAboutMismatchedHooksForComponent; +var didWarnUncachedGetSnapshot; +var didWarnAboutUseWrappedInTryCatch; - if (snapshotChanged) { - hook.memoizedState = nextSnapshot; - markWorkInProgressReceivedUpdate(); - } +{ + didWarnAboutMismatchedHooksForComponent = new Set(); + didWarnAboutUseWrappedInTryCatch = new Set(); +} // These are set right before calling the component. - var inst = hook.queue; - updateEffect(subscribeToStore.bind(null, fiber, inst, subscribe), [ - subscribe - ]); // Whenever getSnapshot or subscribe changes, we need to check in the - // commit phase if there was an interleaved mutation. In concurrent mode - // this can happen all the time, but even in synchronous mode, an earlier - // effect may have mutated the store. +var renderLanes$1 = NoLanes; // The work-in-progress fiber. I've named it differently to distinguish it from +// the work-in-progress hook. - if ( - inst.getSnapshot !== getSnapshot || - snapshotChanged || // Check if the susbcribe function changed. We can save some memory by - // checking whether we scheduled a subscription effect above. - (workInProgressHook !== null && - workInProgressHook.memoizedState.tag & HasEffect) - ) { - fiber.flags |= Passive$1; - pushEffect( - HasEffect | Passive, - updateStoreInstance.bind(null, fiber, inst, nextSnapshot, getSnapshot), - undefined, - null - ); // Unless we're rendering a blocking lane, schedule a consistency check. - // Right before committing, we will walk the tree and check if any of the - // stores were mutated. +var currentlyRenderingFiber$1 = null; // Hooks are stored as a linked list on the fiber's memoizedState field. The +// current hook list is the list that belongs to the current fiber. The +// work-in-progress hook list is a new list that will be added to the +// work-in-progress fiber. - var root = getWorkInProgressRoot(); +var currentHook = null; +var workInProgressHook = null; // Whether an update was scheduled at any point during the render phase. This +// does not get reset if we do another render pass; only when we're completely +// finished evaluating this component. This is an optimization so we know +// whether we need to clear render phase updates after a throw. - if (root === null) { - throw new Error( - "Expected a work-in-progress root. This is a bug in React. Please file an issue." - ); - } +var didScheduleRenderPhaseUpdate = false; // Where an update was scheduled only during the current render pass. This +// gets reset after each attempt. +// TODO: Maybe there's some way to consolidate this with +// `didScheduleRenderPhaseUpdate`. Or with `numberOfReRenders`. - if (!includesBlockingLane(root, renderLanes$1)) { - pushStoreConsistencyCheck(fiber, getSnapshot, nextSnapshot); - } - } +var didScheduleRenderPhaseUpdateDuringThisPass = false; +var shouldDoubleInvokeUserFnsInHooksDEV = false; // Counts the number of useId hooks in this component. - return nextSnapshot; -} +var thenableIndexCounter = 0; +var thenableState = null; // Used for ids that are generated completely client-side (i.e. not during +// hydration). This counter is global, so client ids are not stable across +// render attempts. -function pushStoreConsistencyCheck(fiber, getSnapshot, renderedSnapshot) { - fiber.flags |= StoreConsistency; - var check = { - getSnapshot: getSnapshot, - value: renderedSnapshot - }; - var componentUpdateQueue = currentlyRenderingFiber$1.updateQueue; +var globalClientIdCounter = 0; +var RE_RENDER_LIMIT = 25; // In DEV, this is the name of the currently executing primitive hook - if (componentUpdateQueue === null) { - componentUpdateQueue = createFunctionComponentUpdateQueue(); - currentlyRenderingFiber$1.updateQueue = componentUpdateQueue; - componentUpdateQueue.stores = [check]; - } else { - var stores = componentUpdateQueue.stores; +var currentHookNameInDev = null; // In DEV, this list ensures that hooks are called in the same order between renders. +// The list stores the order of hooks used during the initial render (mount). +// Subsequent renders (updates) reference this list. - if (stores === null) { - componentUpdateQueue.stores = [check]; +var hookTypesDev = null; +var hookTypesUpdateIndexDev = -1; // In DEV, this tracks whether currently rendering component needs to ignore +// the dependencies for Hooks that need them (e.g. useEffect or useMemo). +// When true, such Hooks will always be "remounted". Only used during hot reload. + +var ignorePreviousDependencies = false; + +function mountHookTypesDev() { + { + var hookName = currentHookNameInDev; + + if (hookTypesDev === null) { + hookTypesDev = [hookName]; } else { - stores.push(check); + hookTypesDev.push(hookName); } } } -function updateStoreInstance(fiber, inst, nextSnapshot, getSnapshot) { - // These are updated in the passive phase - inst.value = nextSnapshot; - inst.getSnapshot = getSnapshot; // Something may have been mutated in between render and commit. This could - // have been in an event that fired before the passive effects, or it could - // have been in a layout effect. In that case, we would have used the old - // snapsho and getSnapshot values to bail out. We need to check one more time. +function updateHookTypesDev() { + { + var hookName = currentHookNameInDev; - if (checkIfSnapshotChanged(inst)) { - // Force a re-render. - forceStoreRerender(fiber); - } -} + if (hookTypesDev !== null) { + hookTypesUpdateIndexDev++; -function subscribeToStore(fiber, inst, subscribe) { - var handleStoreChange = function () { - // The store changed. Check if the snapshot changed since the last time we - // read from the store. - if (checkIfSnapshotChanged(inst)) { - // Force a re-render. - forceStoreRerender(fiber); + if (hookTypesDev[hookTypesUpdateIndexDev] !== hookName) { + warnOnHookMismatchInDev(hookName); + } } - }; // Subscribe to the store and return a clean-up function. - - return subscribe(handleStoreChange); -} - -function checkIfSnapshotChanged(inst) { - var latestGetSnapshot = inst.getSnapshot; - var prevValue = inst.value; - - try { - var nextValue = latestGetSnapshot(); - return !objectIs(prevValue, nextValue); - } catch (error) { - return true; } } -function forceStoreRerender(fiber) { - var root = enqueueConcurrentRenderForLane(fiber, SyncLane); - - if (root !== null) { - scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); +function checkDepsAreArrayDev(deps) { + { + if (deps !== undefined && deps !== null && !isArray(deps)) { + // Verify deps, but only on mount to avoid extra checks. + // It's unlikely their type would change as usually you define them inline. + error( + "%s received a final argument that is not an array (instead, received `%s`). When " + + "specified, the final argument must be an array.", + currentHookNameInDev, + typeof deps + ); + } } } -function mountState(initialState) { - var hook = mountWorkInProgressHook(); - - if (typeof initialState === "function") { - // $FlowFixMe: Flow doesn't like mixed types - initialState = initialState(); - } +function warnOnHookMismatchInDev(currentHookName) { + { + var componentName = getComponentNameFromFiber(currentlyRenderingFiber$1); - hook.memoizedState = hook.baseState = initialState; - var queue = { - pending: null, - lanes: NoLanes, - dispatch: null, - lastRenderedReducer: basicStateReducer, - lastRenderedState: initialState - }; - hook.queue = queue; - var dispatch = (queue.dispatch = dispatchSetState.bind( - null, - currentlyRenderingFiber$1, - queue - )); - return [hook.memoizedState, dispatch]; -} + if (!didWarnAboutMismatchedHooksForComponent.has(componentName)) { + didWarnAboutMismatchedHooksForComponent.add(componentName); -function updateState(initialState) { - return updateReducer(basicStateReducer); -} + if (hookTypesDev !== null) { + var table = ""; + var secondColumnStart = 30; -function rerenderState(initialState) { - return rerenderReducer(basicStateReducer); -} + for (var i = 0; i <= hookTypesUpdateIndexDev; i++) { + var oldHookName = hookTypesDev[i]; + var newHookName = + i === hookTypesUpdateIndexDev ? currentHookName : oldHookName; + var row = i + 1 + ". " + oldHookName; // Extra space so second column lines up + // lol @ IE not supporting String#repeat -function pushEffect(tag, create, destroy, deps) { - var effect = { - tag: tag, - create: create, - destroy: destroy, - deps: deps, - // Circular - next: null - }; - var componentUpdateQueue = currentlyRenderingFiber$1.updateQueue; + while (row.length < secondColumnStart) { + row += " "; + } - if (componentUpdateQueue === null) { - componentUpdateQueue = createFunctionComponentUpdateQueue(); - currentlyRenderingFiber$1.updateQueue = componentUpdateQueue; - componentUpdateQueue.lastEffect = effect.next = effect; - } else { - var lastEffect = componentUpdateQueue.lastEffect; + row += newHookName + "\n"; + table += row; + } - if (lastEffect === null) { - componentUpdateQueue.lastEffect = effect.next = effect; - } else { - var firstEffect = lastEffect.next; - lastEffect.next = effect; - effect.next = firstEffect; - componentUpdateQueue.lastEffect = effect; + error( + "React has detected a change in the order of Hooks called by %s. " + + "This will lead to bugs and errors if not fixed. " + + "For more information, read the Rules of Hooks: https://reactjs.org/link/rules-of-hooks\n\n" + + " Previous render Next render\n" + + " ------------------------------------------------------\n" + + "%s" + + " ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n", + componentName, + table + ); + } } } - - return effect; } -var stackContainsErrorMessage = null; - -function getCallerStackFrame() { - // eslint-disable-next-line react-internal/prod-error-codes - var stackFrames = new Error("Error message").stack.split("\n"); // Some browsers (e.g. Chrome) include the error message in the stack - // but others (e.g. Firefox) do not. +function throwInvalidHookError() { + throw new Error( + "Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for" + + " one of the following reasons:\n" + + "1. You might have mismatching versions of React and the renderer (such as React DOM)\n" + + "2. You might be breaking the Rules of Hooks\n" + + "3. You might have more than one copy of React in the same app\n" + + "See https://reactjs.org/link/invalid-hook-call for tips about how to debug and fix this problem." + ); +} - if (stackContainsErrorMessage === null) { - stackContainsErrorMessage = stackFrames[0].includes("Error message"); +function areHookInputsEqual(nextDeps, prevDeps) { + { + if (ignorePreviousDependencies) { + // Only true when this component is being hot reloaded. + return false; + } } - return stackContainsErrorMessage - ? stackFrames.slice(3, 4).join("\n") - : stackFrames.slice(2, 3).join("\n"); -} - -function mountRef(initialValue) { - var hook = mountWorkInProgressHook(); - - if (enableUseRefAccessWarning) { + if (prevDeps === null) { { - // Support lazy initialization pattern shown in docs. - // We need to store the caller stack frame so that we don't warn on subsequent renders. - var hasBeenInitialized = initialValue != null; - var lazyInitGetterStack = null; - var didCheckForLazyInit = false; // Only warn once per component+hook. - - var didWarnAboutRead = false; - var didWarnAboutWrite = false; - var current = initialValue; - var ref = { - get current() { - if (!hasBeenInitialized) { - didCheckForLazyInit = true; - lazyInitGetterStack = getCallerStackFrame(); - } else if (currentlyRenderingFiber$1 !== null && !didWarnAboutRead) { - if ( - lazyInitGetterStack === null || - lazyInitGetterStack !== getCallerStackFrame() - ) { - didWarnAboutRead = true; - - warn( - "%s: Unsafe read of a mutable value during render.\n\n" + - "Reading from a ref during render is only safe if:\n" + - "1. The ref value has not been updated, or\n" + - "2. The ref holds a lazily-initialized value that is only set once.\n", - getComponentNameFromFiber(currentlyRenderingFiber$1) || - "Unknown" - ); - } - } - - return current; - }, + error( + "%s received a final argument during this render, but not during " + + "the previous render. Even though the final argument is optional, " + + "its type cannot change between renders.", + currentHookNameInDev + ); + } - set current(value) { - if (currentlyRenderingFiber$1 !== null && !didWarnAboutWrite) { - if (hasBeenInitialized || !didCheckForLazyInit) { - didWarnAboutWrite = true; + return false; + } - warn( - "%s: Unsafe write of a mutable value during render.\n\n" + - "Writing to a ref during render is only safe if the ref holds " + - "a lazily-initialized value that is only set once.\n", - getComponentNameFromFiber(currentlyRenderingFiber$1) || - "Unknown" - ); - } - } + { + // Don't bother comparing lengths in prod because these arrays should be + // passed inline. + if (nextDeps.length !== prevDeps.length) { + error( + "The final argument passed to %s changed size between renders. The " + + "order and size of this array must remain constant.\n\n" + + "Previous: %s\n" + + "Incoming: %s", + currentHookNameInDev, + "[" + prevDeps.join(", ") + "]", + "[" + nextDeps.join(", ") + "]" + ); + } + } // $FlowFixMe[incompatible-use] found when upgrading Flow - hasBeenInitialized = true; - current = value; - } - }; - Object.seal(ref); - hook.memoizedState = ref; - return ref; + for (var i = 0; i < prevDeps.length && i < nextDeps.length; i++) { + // $FlowFixMe[incompatible-use] found when upgrading Flow + if (objectIs(nextDeps[i], prevDeps[i])) { + continue; } - } else { - var _ref2 = { - current: initialValue - }; - hook.memoizedState = _ref2; - return _ref2; + + return false; } -} -function updateRef(initialValue) { - var hook = updateWorkInProgressHook(); - return hook.memoizedState; + return true; } -function mountEffectImpl(fiberFlags, hookFlags, create, deps) { - var hook = mountWorkInProgressHook(); - var nextDeps = deps === undefined ? null : deps; - currentlyRenderingFiber$1.flags |= fiberFlags; - hook.memoizedState = pushEffect( - HasEffect | hookFlags, - create, - undefined, - nextDeps - ); -} +function renderWithHooks( + current, + workInProgress, + Component, + props, + secondArg, + nextRenderLanes +) { + renderLanes$1 = nextRenderLanes; + currentlyRenderingFiber$1 = workInProgress; -function updateEffectImpl(fiberFlags, hookFlags, create, deps) { - var hook = updateWorkInProgressHook(); - var nextDeps = deps === undefined ? null : deps; - var destroy = undefined; // currentHook is null when rerendering after a render phase state update. + { + hookTypesDev = current !== null ? current._debugHookTypes : null; + hookTypesUpdateIndexDev = -1; // Used for hot reloading: - if (currentHook !== null) { - var prevEffect = currentHook.memoizedState; - destroy = prevEffect.destroy; + ignorePreviousDependencies = + current !== null && current.type !== workInProgress.type; + } - if (nextDeps !== null) { - var prevDeps = prevEffect.deps; + workInProgress.memoizedState = null; + workInProgress.updateQueue = null; + workInProgress.lanes = NoLanes; // The following should have already been reset + // currentHook = null; + // workInProgressHook = null; + // didScheduleRenderPhaseUpdate = false; + // localIdCounter = 0; + // thenableIndexCounter = 0; + // thenableState = null; + // TODO Warn if no hooks are used at all during mount, then some are used during update. + // Currently we will identify the update render as a mount because memoizedState === null. + // This is tricky because it's valid for certain types of components (e.g. React.lazy) + // Using memoizedState to differentiate between mount/update only works if at least one stateful hook is used. + // Non-stateful hooks (e.g. context) don't get added to memoizedState, + // so memoizedState would be null during updates and mounts. - if (areHookInputsEqual(nextDeps, prevDeps)) { - hook.memoizedState = pushEffect(hookFlags, create, destroy, nextDeps); - return; - } + { + if (current !== null && current.memoizedState !== null) { + ReactCurrentDispatcher$1.current = HooksDispatcherOnUpdateInDEV; + } else if (hookTypesDev !== null) { + // This dispatcher handles an edge case where a component is updating, + // but no stateful hooks have been used. + // We want to match the production code behavior (which will use HooksDispatcherOnMount), + // but with the extra DEV validation to ensure hooks ordering hasn't changed. + // This dispatcher does that. + ReactCurrentDispatcher$1.current = + HooksDispatcherOnMountWithHookTypesInDEV; + } else { + ReactCurrentDispatcher$1.current = HooksDispatcherOnMountInDEV; } - } + } // In Strict Mode, during development, user functions are double invoked to + // help detect side effects. The logic for how this is implemented for in + // hook components is a bit complex so let's break it down. + // + // We will invoke the entire component function twice. However, during the + // second invocation of the component, the hook state from the first + // invocation will be reused. That means things like `useMemo` functions won't + // run again, because the deps will match and the memoized result will + // be reused. + // + // We want memoized functions to run twice, too, so account for this, user + // functions are double invoked during the *first* invocation of the component + // function, and are *not* double invoked during the second incovation: + // + // - First execution of component function: user functions are double invoked + // - Second execution of component function (in Strict Mode, during + // development): user functions are not double invoked. + // + // This is intentional for a few reasons; most importantly, it's because of + // how `use` works when something suspends: it reuses the promise that was + // passed during the first attempt. This is itself a form of memoization. + // We need to be able to memoize the reactive inputs to the `use` call using + // a hook (i.e. `useMemo`), which means, the reactive inputs to `use` must + // come from the same component invocation as the output. + // + // There are plenty of tests to ensure this behavior is correct. - currentlyRenderingFiber$1.flags |= fiberFlags; - hook.memoizedState = pushEffect( - HasEffect | hookFlags, - create, - destroy, - nextDeps - ); -} + var shouldDoubleRenderDEV = + (workInProgress.mode & StrictLegacyMode) !== NoMode; + shouldDoubleInvokeUserFnsInHooksDEV = shouldDoubleRenderDEV; + var children = Component(props, secondArg); + shouldDoubleInvokeUserFnsInHooksDEV = false; // Check if there was a render phase update -function mountEffect(create, deps) { - if ((currentlyRenderingFiber$1.mode & StrictEffectsMode) !== NoMode) { - mountEffectImpl( - MountPassiveDev | Passive$1 | PassiveStatic, - Passive, - create, - deps + if (didScheduleRenderPhaseUpdateDuringThisPass) { + // Keep rendering until the component stabilizes (there are no more render + // phase updates). + children = renderWithHooksAgain( + workInProgress, + Component, + props, + secondArg ); - } else { - mountEffectImpl(Passive$1 | PassiveStatic, Passive, create, deps); } -} - -function updateEffect(create, deps) { - updateEffectImpl(Passive$1, Passive, create, deps); -} - -function mountInsertionEffect(create, deps) { - mountEffectImpl(Update, Insertion, create, deps); -} - -function updateInsertionEffect(create, deps) { - return updateEffectImpl(Update, Insertion, create, deps); -} -function mountLayoutEffect(create, deps) { - var fiberFlags = Update | LayoutStatic; + if (shouldDoubleRenderDEV) { + // In development, components are invoked twice to help detect side effects. + setIsStrictModeForDevtools(true); - if ((currentlyRenderingFiber$1.mode & StrictEffectsMode) !== NoMode) { - fiberFlags |= MountLayoutDev; + try { + children = renderWithHooksAgain( + workInProgress, + Component, + props, + secondArg + ); + } finally { + setIsStrictModeForDevtools(false); + } } - return mountEffectImpl(fiberFlags, Layout, create, deps); -} - -function updateLayoutEffect(create, deps) { - return updateEffectImpl(Update, Layout, create, deps); + finishRenderingHooks(current, workInProgress); + return children; } -function imperativeHandleEffect(create, ref) { - if (typeof ref === "function") { - var refCallback = ref; - var inst = create(); - refCallback(inst); - return function () { - refCallback(null); - }; - } else if (ref !== null && ref !== undefined) { - var refObject = ref; - - { - if (!refObject.hasOwnProperty("current")) { - error( - "Expected useImperativeHandle() first argument to either be a " + - "ref callback or React.createRef() object. Instead received: %s.", - "an object with keys {" + Object.keys(refObject).join(", ") + "}" - ); - } - } - - var _inst = create(); - - refObject.current = _inst; - return function () { - refObject.current = null; - }; - } -} +function finishRenderingHooks(current, workInProgress) { + // We can assume the previous dispatcher is always this one, since we set it + // at the beginning of the render phase and there's no re-entrance. + ReactCurrentDispatcher$1.current = ContextOnlyDispatcher; -function mountImperativeHandle(ref, create, deps) { { - if (typeof create !== "function") { - error( - "Expected useImperativeHandle() second argument to be a function " + - "that creates a handle. Instead received: %s.", - create !== null ? typeof create : "null" - ); - } - } // TODO: If deps are provided, should we skip comparing the ref itself? - - var effectDeps = - deps !== null && deps !== undefined ? deps.concat([ref]) : null; - var fiberFlags = Update | LayoutStatic; - - if ((currentlyRenderingFiber$1.mode & StrictEffectsMode) !== NoMode) { - fiberFlags |= MountLayoutDev; - } + workInProgress._debugHookTypes = hookTypesDev; + } // This check uses currentHook so that it works the same in DEV and prod bundles. + // hookTypesDev could catch more cases (e.g. context) but only in DEV bundles. - mountEffectImpl( - fiberFlags, - Layout, - imperativeHandleEffect.bind(null, create, ref), - effectDeps - ); -} + var didRenderTooFewHooks = currentHook !== null && currentHook.next !== null; + renderLanes$1 = NoLanes; + currentlyRenderingFiber$1 = null; + currentHook = null; + workInProgressHook = null; -function updateImperativeHandle(ref, create, deps) { { - if (typeof create !== "function") { + currentHookNameInDev = null; + hookTypesDev = null; + hookTypesUpdateIndexDev = -1; // Confirm that a static flag was not added or removed since the last + // render. If this fires, it suggests that we incorrectly reset the static + // flags in some other part of the codebase. This has happened before, for + // example, in the SuspenseList implementation. + + if ( + current !== null && + (current.flags & StaticMask) !== (workInProgress.flags & StaticMask) && // Disable this warning in legacy mode, because legacy Suspense is weird + // and creates false positives. To make this work in legacy mode, we'd + // need to mark fibers that commit in an incomplete state, somehow. For + // now I'll disable the warning that most of the bugs that would trigger + // it are either exclusive to concurrent mode or exist in both. + (current.mode & ConcurrentMode) !== NoMode + ) { error( - "Expected useImperativeHandle() second argument to be a function " + - "that creates a handle. Instead received: %s.", - create !== null ? typeof create : "null" + "Internal React error: Expected static flag was missing. Please " + + "notify the React team." ); } - } // TODO: If deps are provided, should we skip comparing the ref itself? - - var effectDeps = - deps !== null && deps !== undefined ? deps.concat([ref]) : null; - updateEffectImpl( - Update, - Layout, - imperativeHandleEffect.bind(null, create, ref), - effectDeps - ); -} + } -function mountDebugValue(value, formatterFn) { - // This hook is normally a no-op. - // The react-debug-hooks package injects its own implementation - // so that e.g. DevTools can display custom hook values. -} + didScheduleRenderPhaseUpdate = false; // This is reset by checkDidRenderIdHook + // localIdCounter = 0; -var updateDebugValue = mountDebugValue; + thenableIndexCounter = 0; + thenableState = null; -function mountCallback(callback, deps) { - var hook = mountWorkInProgressHook(); - var nextDeps = deps === undefined ? null : deps; - hook.memoizedState = [callback, nextDeps]; - return callback; -} + if (didRenderTooFewHooks) { + throw new Error( + "Rendered fewer hooks than expected. This may be caused by an accidental " + + "early return statement." + ); + } -function updateCallback(callback, deps) { - var hook = updateWorkInProgressHook(); - var nextDeps = deps === undefined ? null : deps; - var prevState = hook.memoizedState; + { + if (checkIfUseWrappedInTryCatch()) { + var componentName = + getComponentNameFromFiber(workInProgress) || "Unknown"; - if (nextDeps !== null) { - var prevDeps = prevState[1]; + if (!didWarnAboutUseWrappedInTryCatch.has(componentName)) { + didWarnAboutUseWrappedInTryCatch.add(componentName); - if (areHookInputsEqual(nextDeps, prevDeps)) { - return prevState[0]; + error( + "`use` was called from inside a try/catch block. This is not allowed " + + "and can lead to unexpected behavior. To handle errors triggered " + + "by `use`, wrap your component in a error boundary." + ); + } } } - - hook.memoizedState = [callback, nextDeps]; - return callback; } -function mountMemo(nextCreate, deps) { - var hook = mountWorkInProgressHook(); - var nextDeps = deps === undefined ? null : deps; +function replaySuspendedComponentWithHooks( + current, + workInProgress, + Component, + props, + secondArg +) { + // This function is used to replay a component that previously suspended, + // after its data resolves. + // + // It's a simplified version of renderWithHooks, but it doesn't need to do + // most of the set up work because they weren't reset when we suspended; they + // only get reset when the component either completes (finishRenderingHooks) + // or unwinds (resetHooksOnUnwind). + { + hookTypesUpdateIndexDev = -1; // Used for hot reloading: - if (shouldDoubleInvokeUserFnsInHooksDEV) { - nextCreate(); + ignorePreviousDependencies = + current !== null && current.type !== workInProgress.type; } - var nextValue = nextCreate(); - hook.memoizedState = [nextValue, nextDeps]; - return nextValue; + var children = renderWithHooksAgain( + workInProgress, + Component, + props, + secondArg + ); + finishRenderingHooks(current, workInProgress); + return children; } -function updateMemo(nextCreate, deps) { - var hook = updateWorkInProgressHook(); - var nextDeps = deps === undefined ? null : deps; - var prevState = hook.memoizedState; // Assume these are defined. If they're not, areHookInputsEqual will warn. +function renderWithHooksAgain(workInProgress, Component, props, secondArg) { + // This is used to perform another render pass. It's used when setState is + // called during render, and for double invoking components in Strict Mode + // during development. + // + // The state from the previous pass is reused whenever possible. So, state + // updates that were already processed are not processed again, and memoized + // functions (`useMemo`) are not invoked again. + // + // Keep rendering in a loop for as long as render phase updates continue to + // be scheduled. Use a counter to prevent infinite loops. + var numberOfReRenders = 0; + var children; - if (nextDeps !== null) { - var prevDeps = prevState[1]; + do { + if (didScheduleRenderPhaseUpdateDuringThisPass) { + // It's possible that a use() value depended on a state that was updated in + // this rerender, so we need to watch for different thenables this time. + thenableState = null; + } - if (areHookInputsEqual(nextDeps, prevDeps)) { - return prevState[0]; + thenableIndexCounter = 0; + didScheduleRenderPhaseUpdateDuringThisPass = false; + + if (numberOfReRenders >= RE_RENDER_LIMIT) { + throw new Error( + "Too many re-renders. React limits the number of renders to prevent " + + "an infinite loop." + ); } - } - if (shouldDoubleInvokeUserFnsInHooksDEV) { - nextCreate(); - } + numberOfReRenders += 1; - var nextValue = nextCreate(); - hook.memoizedState = [nextValue, nextDeps]; - return nextValue; -} + { + // Even when hot reloading, allow dependencies to stabilize + // after first render to prevent infinite render phase updates. + ignorePreviousDependencies = false; + } // Start over from the beginning of the list -function mountDeferredValue(value) { - var hook = mountWorkInProgressHook(); - hook.memoizedState = value; - return value; -} + currentHook = null; + workInProgressHook = null; + workInProgress.updateQueue = null; -function updateDeferredValue(value) { - var hook = updateWorkInProgressHook(); - var resolvedCurrentHook = currentHook; - var prevValue = resolvedCurrentHook.memoizedState; - return updateDeferredValueImpl(hook, prevValue, value); -} + { + // Also validate hook order for cascading updates. + hookTypesUpdateIndexDev = -1; + } -function rerenderDeferredValue(value) { - var hook = updateWorkInProgressHook(); + ReactCurrentDispatcher$1.current = HooksDispatcherOnRerenderInDEV; + children = Component(props, secondArg); + } while (didScheduleRenderPhaseUpdateDuringThisPass); - if (currentHook === null) { - // This is a rerender during a mount. - hook.memoizedState = value; - return value; + return children; +} +function bailoutHooks(current, workInProgress, lanes) { + workInProgress.updateQueue = current.updateQueue; // TODO: Don't need to reset the flags here, because they're reset in the + // complete phase (bubbleProperties). + + if ((workInProgress.mode & StrictEffectsMode) !== NoMode) { + workInProgress.flags &= ~( + MountPassiveDev | + MountLayoutDev | + Passive$1 | + Update + ); } else { - // This is a rerender during an update. - var prevValue = currentHook.memoizedState; - return updateDeferredValueImpl(hook, prevValue, value); + workInProgress.flags &= ~(Passive$1 | Update); } -} -function updateDeferredValueImpl(hook, prevValue, value) { - var shouldDeferValue = !includesOnlyNonUrgentLanes(renderLanes$1); + current.lanes = removeLanes(current.lanes, lanes); +} +function resetHooksAfterThrow() { + // This is called immediaetly after a throw. It shouldn't reset the entire + // module state, because the work loop might decide to replay the component + // again without rewinding. + // + // It should only reset things like the current dispatcher, to prevent hooks + // from being called outside of a component. + // We can assume the previous dispatcher is always this one, since we set it + // at the beginning of the render phase and there's no re-entrance. + ReactCurrentDispatcher$1.current = ContextOnlyDispatcher; +} +function resetHooksOnUnwind() { + if (didScheduleRenderPhaseUpdate) { + // There were render phase updates. These are only valid for this render + // phase, which we are now aborting. Remove the updates from the queues so + // they do not persist to the next render. Do not remove updates from hooks + // that weren't processed. + // + // Only reset the updates from the queue if it has a clone. If it does + // not have a clone, that means it wasn't processed, and the updates were + // scheduled before we entered the render phase. + var hook = currentlyRenderingFiber$1.memoizedState; - if (shouldDeferValue) { - // This is an urgent update. If the value has changed, keep using the - // previous value and spawn a deferred render to update it later. - if (!objectIs(value, prevValue)) { - // Schedule a deferred render - var deferredLane = claimNextTransitionLane(); - currentlyRenderingFiber$1.lanes = mergeLanes( - currentlyRenderingFiber$1.lanes, - deferredLane - ); - markSkippedUpdateLanes(deferredLane); // Set this to true to indicate that the rendered value is inconsistent - // from the latest value. The name "baseState" doesn't really match how we - // use it because we're reusing a state hook field instead of creating a - // new one. + while (hook !== null) { + var queue = hook.queue; - hook.baseState = true; - } // Reuse the previous value + if (queue !== null) { + queue.pending = null; + } - return prevValue; - } else { - // This is not an urgent update, so we can use the latest value regardless - // of what it is. No need to defer it. - // However, if we're currently inside a spawned render, then we need to mark - // this as an update to prevent the fiber from bailing out. - // - // `baseState` is true when the current value is different from the rendered - // value. The name doesn't really match how we use it because we're reusing - // a state hook field instead of creating a new one. - if (hook.baseState) { - // Flip this back to false. - hook.baseState = false; - markWorkInProgressReceivedUpdate(); + hook = hook.next; } - hook.memoizedState = value; - return value; + didScheduleRenderPhaseUpdate = false; } -} -function startTransition(setPending, callback, options) { - var previousPriority = getCurrentUpdatePriority(); - setCurrentUpdatePriority( - higherEventPriority(previousPriority, ContinuousEventPriority) - ); - var prevTransition = ReactCurrentBatchConfig$2.transition; - ReactCurrentBatchConfig$2.transition = null; - setPending(true); - var currentTransition = (ReactCurrentBatchConfig$2.transition = {}); + renderLanes$1 = NoLanes; + currentlyRenderingFiber$1 = null; + currentHook = null; + workInProgressHook = null; { - ReactCurrentBatchConfig$2.transition._updatedFibers = new Set(); - } - - try { - setPending(false); - callback(); - } finally { - setCurrentUpdatePriority(previousPriority); - ReactCurrentBatchConfig$2.transition = prevTransition; - - { - if (prevTransition === null && currentTransition._updatedFibers) { - var updatedFibersCount = currentTransition._updatedFibers.size; - - currentTransition._updatedFibers.clear(); - - if (updatedFibersCount > 10) { - warn( - "Detected a large number of updates inside startTransition. " + - "If this is due to a subscription please re-write it to use React provided hooks. " + - "Otherwise concurrent mode guarantees are off the table." - ); - } - } - } + hookTypesDev = null; + hookTypesUpdateIndexDev = -1; + currentHookNameInDev = null; } -} - -function mountTransition() { - var _mountState = mountState(false), - isPending = _mountState[0], - setPending = _mountState[1]; // The `start` method never changes. - - var start = startTransition.bind(null, setPending); - var hook = mountWorkInProgressHook(); - hook.memoizedState = start; - return [isPending, start]; -} - -function updateTransition() { - var _updateState = updateState(), - isPending = _updateState[0]; - - var hook = updateWorkInProgressHook(); - var start = hook.memoizedState; - return [isPending, start]; -} - -function rerenderTransition() { - var _rerenderState = rerenderState(), - isPending = _rerenderState[0]; - var hook = updateWorkInProgressHook(); - var start = hook.memoizedState; - return [isPending, start]; + didScheduleRenderPhaseUpdateDuringThisPass = false; + thenableIndexCounter = 0; + thenableState = null; } -function mountId() { - var hook = mountWorkInProgressHook(); - var root = getWorkInProgressRoot(); // TODO: In Fizz, id generation is specific to each server config. Maybe we - // should do this in Fiber, too? Deferring this decision for now because - // there's no other place to store the prefix except for an internal field on - // the public createRoot object, which the fiber tree does not currently have - // a reference to. - - var identifierPrefix = root.identifierPrefix; - var id; +function mountWorkInProgressHook() { + var hook = { + memoizedState: null, + baseState: null, + baseQueue: null, + queue: null, + next: null + }; - { - // Use a lowercase r prefix for client-generated ids. - var globalClientId = globalClientIdCounter++; - id = ":" + identifierPrefix + "r" + globalClientId.toString(32) + ":"; + if (workInProgressHook === null) { + // This is the first hook in the list + currentlyRenderingFiber$1.memoizedState = workInProgressHook = hook; + } else { + // Append to the end of the list + workInProgressHook = workInProgressHook.next = hook; } - hook.memoizedState = id; - return id; + return workInProgressHook; } -function updateId() { - var hook = updateWorkInProgressHook(); - var id = hook.memoizedState; - return id; -} +function updateWorkInProgressHook() { + // This function is used both for updates and for re-renders triggered by a + // render phase update. It assumes there is either a current hook we can + // clone, or a work-in-progress hook from a previous render pass that we can + // use as a base. + var nextCurrentHook; -function dispatchReducerAction(fiber, queue, action) { - { - if (typeof arguments[3] === "function") { - error( - "State updates from the useState() and useReducer() Hooks don't support the " + - "second callback argument. To execute a side effect after " + - "rendering, declare it in the component body with useEffect()." - ); + if (currentHook === null) { + var current = currentlyRenderingFiber$1.alternate; + + if (current !== null) { + nextCurrentHook = current.memoizedState; + } else { + nextCurrentHook = null; } + } else { + nextCurrentHook = currentHook.next; } - var lane = requestUpdateLane(fiber); - var update = { - lane: lane, - action: action, - hasEagerState: false, - eagerState: null, - next: null - }; + var nextWorkInProgressHook; - if (isRenderPhaseUpdate(fiber)) { - enqueueRenderPhaseUpdate(queue, update); + if (workInProgressHook === null) { + nextWorkInProgressHook = currentlyRenderingFiber$1.memoizedState; } else { - var root = enqueueConcurrentHookUpdate(fiber, queue, update, lane); - - if (root !== null) { - var eventTime = requestEventTime(); - scheduleUpdateOnFiber(root, fiber, lane, eventTime); - entangleTransitionUpdate(root, queue, lane); - } + nextWorkInProgressHook = workInProgressHook.next; } - markUpdateInDevTools(fiber, lane); -} + if (nextWorkInProgressHook !== null) { + // There's already a work-in-progress. Reuse it. + workInProgressHook = nextWorkInProgressHook; + nextWorkInProgressHook = workInProgressHook.next; + currentHook = nextCurrentHook; + } else { + // Clone from the current hook. + if (nextCurrentHook === null) { + var currentFiber = currentlyRenderingFiber$1.alternate; -function dispatchSetState(fiber, queue, action) { - { - if (typeof arguments[3] === "function") { - error( - "State updates from the useState() and useReducer() Hooks don't support the " + - "second callback argument. To execute a side effect after " + - "rendering, declare it in the component body with useEffect()." - ); + if (currentFiber === null) { + // This is the initial render. This branch is reached when the component + // suspends, resumes, then renders an additional hook. + // Should never be reached because we should switch to the mount dispatcher first. + throw new Error( + "Update hook called on initial render. This is likely a bug in React. Please file an issue." + ); + } else { + // This is an update. We should always have a current hook. + throw new Error("Rendered more hooks than during the previous render."); + } + } + + currentHook = nextCurrentHook; + var newHook = { + memoizedState: currentHook.memoizedState, + baseState: currentHook.baseState, + baseQueue: currentHook.baseQueue, + queue: currentHook.queue, + next: null + }; + + if (workInProgressHook === null) { + // This is the first hook in the list. + currentlyRenderingFiber$1.memoizedState = workInProgressHook = newHook; + } else { + // Append to the end of the list. + workInProgressHook = workInProgressHook.next = newHook; } } - var lane = requestUpdateLane(fiber); - var update = { - lane: lane, - action: action, - hasEagerState: false, - eagerState: null, - next: null - }; + return workInProgressHook; +} // NOTE: defining two versions of this function to avoid size impact when this feature is disabled. +// Previously this function was inlined, the additional `memoCache` property makes it not inlined. - if (isRenderPhaseUpdate(fiber)) { - enqueueRenderPhaseUpdate(queue, update); - } else { - var alternate = fiber.alternate; +var createFunctionComponentUpdateQueue; - if ( - fiber.lanes === NoLanes && - (alternate === null || alternate.lanes === NoLanes) - ) { - // The queue is currently empty, which means we can eagerly compute the - // next state before entering the render phase. If the new state is the - // same as the current state, we may be able to bail out entirely. - var lastRenderedReducer = queue.lastRenderedReducer; +{ + createFunctionComponentUpdateQueue = function () { + return { + lastEffect: null, + events: null, + stores: null, + memoCache: null + }; + }; +} - if (lastRenderedReducer !== null) { - var prevDispatcher; +function use(usable) { + if (usable !== null && typeof usable === "object") { + // $FlowFixMe[method-unbinding] + if (typeof usable.then === "function") { + // This is a thenable. + var thenable = usable; // Track the position of the thenable within this fiber. - { - prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnUpdateInDEV; - } + var index = thenableIndexCounter; + thenableIndexCounter += 1; - try { - var currentState = queue.lastRenderedState; - var eagerState = lastRenderedReducer(currentState, action); // Stash the eagerly computed state, and the reducer used to compute - // it, on the update object. If the reducer hasn't changed by the - // time we enter the render phase, then the eager state can be used - // without calling the reducer again. + if (thenableState === null) { + thenableState = createThenableState(); + } - update.hasEagerState = true; - update.eagerState = eagerState; + var result = trackUsedThenable(thenableState, thenable, index); - if (objectIs(eagerState, currentState)) { - // Fast path. We can bail out without scheduling React to re-render. - // It's still possible that we'll need to rebase this update later, - // if the component re-renders for a different reason and by that - // time the reducer has changed. - // TODO: Do we still need to entangle transitions in this case? - enqueueConcurrentHookUpdateAndEagerlyBailout(fiber, queue, update); - return; - } - } catch (error) { - // Suppress the error. It will throw again in the render phase. - } finally { - { - ReactCurrentDispatcher$1.current = prevDispatcher; - } + if ( + currentlyRenderingFiber$1.alternate === null && + (workInProgressHook === null + ? currentlyRenderingFiber$1.memoizedState === null + : workInProgressHook.next === null) + ) { + // Initial render, and either this is the first time the component is + // called, or there were no Hooks called after this use() the previous + // time (perhaps because it threw). Subsequent Hook calls should use the + // mount dispatcher. + { + ReactCurrentDispatcher$1.current = HooksDispatcherOnMountInDEV; } } - } - - var root = enqueueConcurrentHookUpdate(fiber, queue, update, lane); - if (root !== null) { - var eventTime = requestEventTime(); - scheduleUpdateOnFiber(root, fiber, lane, eventTime); - entangleTransitionUpdate(root, queue, lane); + return result; + } else if ( + usable.$$typeof === REACT_CONTEXT_TYPE || + usable.$$typeof === REACT_SERVER_CONTEXT_TYPE + ) { + var context = usable; + return readContext(context); } - } + } // eslint-disable-next-line react-internal/safe-string-coercion - markUpdateInDevTools(fiber, lane); + throw new Error("An unsupported type was passed to use(): " + String(usable)); } -function isRenderPhaseUpdate(fiber) { - var alternate = fiber.alternate; - return ( - fiber === currentlyRenderingFiber$1 || - (alternate !== null && alternate === currentlyRenderingFiber$1) - ); -} +function useMemoCache(size) { + var memoCache = null; // Fast-path, load memo cache from wip fiber if already prepared -function enqueueRenderPhaseUpdate(queue, update) { - // This is a render phase update. Stash it in a lazily-created map of - // queue -> linked list of updates. After this render pass, we'll restart - // and apply the stashed updates on top of the work-in-progress hook. - didScheduleRenderPhaseUpdateDuringThisPass = didScheduleRenderPhaseUpdate = - true; - var pending = queue.pending; + var updateQueue = currentlyRenderingFiber$1.updateQueue; - if (pending === null) { - // This is the first update. Create a circular list. - update.next = update; - } else { - update.next = pending.next; - pending.next = update; - } + if (updateQueue !== null) { + memoCache = updateQueue.memoCache; + } // Otherwise clone from the current fiber - queue.pending = update; -} // TODO: Move to ReactFiberConcurrentUpdates? + if (memoCache == null) { + var current = currentlyRenderingFiber$1.alternate; -function entangleTransitionUpdate(root, queue, lane) { - if (isTransitionLane(lane)) { - var queueLanes = queue.lanes; // If any entangled lanes are no longer pending on the root, then they - // must have finished. We can remove them from the shared queue, which - // represents a superset of the actually pending lanes. In some cases we - // may entangle more than we need to, but that's OK. In fact it's worse if - // we *don't* entangle when we should. + if (current !== null) { + var currentUpdateQueue = current.updateQueue; - queueLanes = intersectLanes(queueLanes, root.pendingLanes); // Entangle the new transition lane with the other transition lanes. + if (currentUpdateQueue !== null) { + var currentMemoCache = currentUpdateQueue.memoCache; - var newQueueLanes = mergeLanes(queueLanes, lane); - queue.lanes = newQueueLanes; // Even if queue.lanes already include lane, we don't know for certain if - // the lane finished since the last time we entangled it. So we need to - // entangle it again, just to be sure. + if (currentMemoCache != null) { + memoCache = { + data: currentMemoCache.data.map(function (array) { + return array.slice(); + }), + index: 0 + }; + } + } + } + } // Finally fall back to allocating a fresh instance of the cache - markRootEntangled(root, newQueueLanes); + if (memoCache == null) { + memoCache = { + data: [], + index: 0 + }; } -} -function markUpdateInDevTools(fiber, lane, action) { - { - markStateUpdateScheduled(fiber, lane); + if (updateQueue === null) { + updateQueue = createFunctionComponentUpdateQueue(); + currentlyRenderingFiber$1.updateQueue = updateQueue; } -} - -var ContextOnlyDispatcher = { - readContext: readContext, - useCallback: throwInvalidHookError, - useContext: throwInvalidHookError, - useEffect: throwInvalidHookError, - useImperativeHandle: throwInvalidHookError, - useInsertionEffect: throwInvalidHookError, - useLayoutEffect: throwInvalidHookError, - useMemo: throwInvalidHookError, - useReducer: throwInvalidHookError, - useRef: throwInvalidHookError, - useState: throwInvalidHookError, - useDebugValue: throwInvalidHookError, - useDeferredValue: throwInvalidHookError, - useTransition: throwInvalidHookError, - useMutableSource: throwInvalidHookError, - useSyncExternalStore: throwInvalidHookError, - useId: throwInvalidHookError -}; -{ - ContextOnlyDispatcher.use = throwInvalidHookError; -} + updateQueue.memoCache = memoCache; + var data = memoCache.data[memoCache.index]; -{ - ContextOnlyDispatcher.useMemoCache = throwInvalidHookError; -} + if (data === undefined) { + data = memoCache.data[memoCache.index] = new Array(size); -var HooksDispatcherOnMountInDEV = null; -var HooksDispatcherOnMountWithHookTypesInDEV = null; -var HooksDispatcherOnUpdateInDEV = null; -var HooksDispatcherOnRerenderInDEV = null; -var InvalidNestedHooksDispatcherOnMountInDEV = null; -var InvalidNestedHooksDispatcherOnUpdateInDEV = null; -var InvalidNestedHooksDispatcherOnRerenderInDEV = null; + for (var i = 0; i < size; i++) { + data[i] = REACT_MEMO_CACHE_SENTINEL; + } + } else if (data.length !== size) { + // TODO: consider warning or throwing here + { + error( + "Expected a constant size argument for each invocation of useMemoCache. " + + "The previous cache was allocated with size %s but size %s was requested.", + data.length, + size + ); + } + } -{ - var warnInvalidContextAccess = function () { - error( - "Context can only be read while React is rendering. " + - "In classes, you can read it in the render method or getDerivedStateFromProps. " + - "In function components, you can read it directly in the function body, but not " + - "inside Hooks like useReducer() or useMemo()." - ); + memoCache.index++; + return data; +} + +function basicStateReducer(state, action) { + // $FlowFixMe: Flow doesn't like mixed types + return typeof action === "function" ? action(state) : action; +} + +function mountReducer(reducer, initialArg, init) { + var hook = mountWorkInProgressHook(); + var initialState; + + if (init !== undefined) { + initialState = init(initialArg); + } else { + initialState = initialArg; + } + + hook.memoizedState = hook.baseState = initialState; + var queue = { + pending: null, + lanes: NoLanes, + dispatch: null, + lastRenderedReducer: reducer, + lastRenderedState: initialState }; + hook.queue = queue; + var dispatch = (queue.dispatch = dispatchReducerAction.bind( + null, + currentlyRenderingFiber$1, + queue + )); + return [hook.memoizedState, dispatch]; +} - var warnInvalidHookAccess = function () { - error( - "Do not call Hooks inside useEffect(...), useMemo(...), or other built-in Hooks. " + - "You can only call Hooks at the top level of your React function. " + - "For more information, see " + - "https://reactjs.org/link/rules-of-hooks" +function updateReducer(reducer, initialArg, init) { + var hook = updateWorkInProgressHook(); + var queue = hook.queue; + + if (queue === null) { + throw new Error( + "Should have a queue. This is likely a bug in React. Please file an issue." ); - }; + } - HooksDispatcherOnMountInDEV = { - readContext: function (context) { - return readContext(context); - }, - useCallback: function (callback, deps) { - currentHookNameInDev = "useCallback"; - mountHookTypesDev(); - checkDepsAreArrayDev(deps); - return mountCallback(callback, deps); - }, - useContext: function (context) { - currentHookNameInDev = "useContext"; - mountHookTypesDev(); - return readContext(context); - }, - useEffect: function (create, deps) { - currentHookNameInDev = "useEffect"; - mountHookTypesDev(); - checkDepsAreArrayDev(deps); - return mountEffect(create, deps); - }, - useImperativeHandle: function (ref, create, deps) { - currentHookNameInDev = "useImperativeHandle"; - mountHookTypesDev(); - checkDepsAreArrayDev(deps); - return mountImperativeHandle(ref, create, deps); - }, - useInsertionEffect: function (create, deps) { - currentHookNameInDev = "useInsertionEffect"; - mountHookTypesDev(); - checkDepsAreArrayDev(deps); - return mountInsertionEffect(create, deps); - }, - useLayoutEffect: function (create, deps) { - currentHookNameInDev = "useLayoutEffect"; - mountHookTypesDev(); - checkDepsAreArrayDev(deps); - return mountLayoutEffect(create, deps); - }, - useMemo: function (create, deps) { - currentHookNameInDev = "useMemo"; - mountHookTypesDev(); - checkDepsAreArrayDev(deps); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnMountInDEV; + queue.lastRenderedReducer = reducer; + var current = currentHook; // The last rebase update that is NOT part of the base state. - try { - return mountMemo(create, deps); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; - } - }, - useReducer: function (reducer, initialArg, init) { - currentHookNameInDev = "useReducer"; - mountHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnMountInDEV; + var baseQueue = current.baseQueue; // The last pending update that hasn't been processed yet. - try { - return mountReducer(reducer, initialArg, init); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; - } - }, - useRef: function (initialValue) { - currentHookNameInDev = "useRef"; - mountHookTypesDev(); - return mountRef(initialValue); - }, - useState: function (initialState) { - currentHookNameInDev = "useState"; - mountHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnMountInDEV; + var pendingQueue = queue.pending; - try { - return mountState(initialState); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; + if (pendingQueue !== null) { + // We have new updates that haven't been processed yet. + // We'll add them to the base queue. + if (baseQueue !== null) { + // Merge the pending queue and the base queue. + var baseFirst = baseQueue.next; + var pendingFirst = pendingQueue.next; + baseQueue.next = pendingFirst; + pendingQueue.next = baseFirst; + } + + { + if (current.baseQueue !== baseQueue) { + // Internal invariant that should never happen, but feasibly could in + // the future if we implement resuming, or some form of that. + error( + "Internal error: Expected work-in-progress queue to be a clone. " + + "This is a bug in React." + ); } - }, - useDebugValue: function (value, formatterFn) { - currentHookNameInDev = "useDebugValue"; - mountHookTypesDev(); - return mountDebugValue(); - }, - useDeferredValue: function (value) { - currentHookNameInDev = "useDeferredValue"; - mountHookTypesDev(); - return mountDeferredValue(value); - }, - useTransition: function () { - currentHookNameInDev = "useTransition"; - mountHookTypesDev(); - return mountTransition(); - }, - useMutableSource: function (source, getSnapshot, subscribe) { - currentHookNameInDev = "useMutableSource"; - mountHookTypesDev(); - return mountMutableSource(source, getSnapshot, subscribe); - }, - useSyncExternalStore: function (subscribe, getSnapshot, getServerSnapshot) { - currentHookNameInDev = "useSyncExternalStore"; - mountHookTypesDev(); - return mountSyncExternalStore(subscribe, getSnapshot); - }, - useId: function () { - currentHookNameInDev = "useId"; - mountHookTypesDev(); - return mountId(); } - }; - { - HooksDispatcherOnMountInDEV.use = use; + current.baseQueue = baseQueue = pendingQueue; + queue.pending = null; } - { - HooksDispatcherOnMountInDEV.useMemoCache = useMemoCache; - } + if (baseQueue !== null) { + // We have a queue to process. + var first = baseQueue.next; + var newState = current.baseState; + var newBaseState = null; + var newBaseQueueFirst = null; + var newBaseQueueLast = null; + var update = first; - HooksDispatcherOnMountWithHookTypesInDEV = { - readContext: function (context) { - return readContext(context); - }, - useCallback: function (callback, deps) { - currentHookNameInDev = "useCallback"; - updateHookTypesDev(); - return mountCallback(callback, deps); - }, - useContext: function (context) { - currentHookNameInDev = "useContext"; - updateHookTypesDev(); - return readContext(context); - }, - useEffect: function (create, deps) { - currentHookNameInDev = "useEffect"; - updateHookTypesDev(); - return mountEffect(create, deps); - }, - useImperativeHandle: function (ref, create, deps) { - currentHookNameInDev = "useImperativeHandle"; - updateHookTypesDev(); - return mountImperativeHandle(ref, create, deps); - }, - useInsertionEffect: function (create, deps) { - currentHookNameInDev = "useInsertionEffect"; - updateHookTypesDev(); - return mountInsertionEffect(create, deps); - }, - useLayoutEffect: function (create, deps) { - currentHookNameInDev = "useLayoutEffect"; - updateHookTypesDev(); - return mountLayoutEffect(create, deps); - }, - useMemo: function (create, deps) { - currentHookNameInDev = "useMemo"; - updateHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnMountInDEV; + do { + // An extra OffscreenLane bit is added to updates that were made to + // a hidden tree, so that we can distinguish them from updates that were + // already there when the tree was hidden. + var updateLane = removeLanes(update.lane, OffscreenLane); + var isHiddenUpdate = updateLane !== update.lane; // Check if this update was made while the tree was hidden. If so, then + // it's not a "base" update and we should disregard the extra base lanes + // that were added to renderLanes when we entered the Offscreen tree. - try { - return mountMemo(create, deps); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; - } - }, - useReducer: function (reducer, initialArg, init) { - currentHookNameInDev = "useReducer"; - updateHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnMountInDEV; + var shouldSkipUpdate = isHiddenUpdate + ? !isSubsetOfLanes(getWorkInProgressRootRenderLanes(), updateLane) + : !isSubsetOfLanes(renderLanes$1, updateLane); - try { - return mountReducer(reducer, initialArg, init); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; - } - }, - useRef: function (initialValue) { - currentHookNameInDev = "useRef"; - updateHookTypesDev(); - return mountRef(initialValue); - }, - useState: function (initialState) { - currentHookNameInDev = "useState"; - updateHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnMountInDEV; + if (shouldSkipUpdate) { + // Priority is insufficient. Skip this update. If this is the first + // skipped update, the previous update/state is the new base + // update/state. + var clone = { + lane: updateLane, + action: update.action, + hasEagerState: update.hasEagerState, + eagerState: update.eagerState, + next: null + }; - try { - return mountState(initialState); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; + if (newBaseQueueLast === null) { + newBaseQueueFirst = newBaseQueueLast = clone; + newBaseState = newState; + } else { + newBaseQueueLast = newBaseQueueLast.next = clone; + } // Update the remaining priority in the queue. + // TODO: Don't need to accumulate this. Instead, we can remove + // renderLanes from the original lanes. + + currentlyRenderingFiber$1.lanes = mergeLanes( + currentlyRenderingFiber$1.lanes, + updateLane + ); + markSkippedUpdateLanes(updateLane); + } else { + // This update does have sufficient priority. + if (newBaseQueueLast !== null) { + var _clone = { + // This update is going to be committed so we never want uncommit + // it. Using NoLane works because 0 is a subset of all bitmasks, so + // this will never be skipped by the check above. + lane: NoLane, + action: update.action, + hasEagerState: update.hasEagerState, + eagerState: update.eagerState, + next: null + }; + newBaseQueueLast = newBaseQueueLast.next = _clone; + } // Process this update. + + var action = update.action; + + if (shouldDoubleInvokeUserFnsInHooksDEV) { + reducer(newState, action); + } + + if (update.hasEagerState) { + // If this update is a state update (not a reducer) and was processed eagerly, + // we can use the eagerly computed state + newState = update.eagerState; + } else { + newState = reducer(newState, action); + } } - }, - useDebugValue: function (value, formatterFn) { - currentHookNameInDev = "useDebugValue"; - updateHookTypesDev(); - return mountDebugValue(); - }, - useDeferredValue: function (value) { - currentHookNameInDev = "useDeferredValue"; - updateHookTypesDev(); - return mountDeferredValue(value); - }, - useTransition: function () { - currentHookNameInDev = "useTransition"; - updateHookTypesDev(); - return mountTransition(); - }, - useMutableSource: function (source, getSnapshot, subscribe) { - currentHookNameInDev = "useMutableSource"; - updateHookTypesDev(); - return mountMutableSource(source, getSnapshot, subscribe); - }, - useSyncExternalStore: function (subscribe, getSnapshot, getServerSnapshot) { - currentHookNameInDev = "useSyncExternalStore"; - updateHookTypesDev(); - return mountSyncExternalStore(subscribe, getSnapshot); - }, - useId: function () { - currentHookNameInDev = "useId"; - updateHookTypesDev(); - return mountId(); + + update = update.next; + } while (update !== null && update !== first); + + if (newBaseQueueLast === null) { + newBaseState = newState; + } else { + newBaseQueueLast.next = newBaseQueueFirst; + } // Mark that the fiber performed work, but only if the new state is + // different from the current state. + + if (!objectIs(newState, hook.memoizedState)) { + markWorkInProgressReceivedUpdate(); } - }; - { - HooksDispatcherOnMountWithHookTypesInDEV.use = use; + hook.memoizedState = newState; + hook.baseState = newBaseState; + hook.baseQueue = newBaseQueueLast; + queue.lastRenderedState = newState; } - { - HooksDispatcherOnMountWithHookTypesInDEV.useMemoCache = useMemoCache; + if (baseQueue === null) { + // `queue.lanes` is used for entangling transitions. We can set it back to + // zero once the queue is empty. + queue.lanes = NoLanes; } - HooksDispatcherOnUpdateInDEV = { - readContext: function (context) { - return readContext(context); - }, - useCallback: function (callback, deps) { - currentHookNameInDev = "useCallback"; - updateHookTypesDev(); - return updateCallback(callback, deps); - }, - useContext: function (context) { - currentHookNameInDev = "useContext"; - updateHookTypesDev(); - return readContext(context); - }, - useEffect: function (create, deps) { - currentHookNameInDev = "useEffect"; - updateHookTypesDev(); - return updateEffect(create, deps); - }, - useImperativeHandle: function (ref, create, deps) { - currentHookNameInDev = "useImperativeHandle"; - updateHookTypesDev(); - return updateImperativeHandle(ref, create, deps); - }, - useInsertionEffect: function (create, deps) { - currentHookNameInDev = "useInsertionEffect"; - updateHookTypesDev(); - return updateInsertionEffect(create, deps); - }, - useLayoutEffect: function (create, deps) { - currentHookNameInDev = "useLayoutEffect"; - updateHookTypesDev(); - return updateLayoutEffect(create, deps); - }, - useMemo: function (create, deps) { - currentHookNameInDev = "useMemo"; - updateHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnUpdateInDEV; + var dispatch = queue.dispatch; + return [hook.memoizedState, dispatch]; +} - try { - return updateMemo(create, deps); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; - } - }, - useReducer: function (reducer, initialArg, init) { - currentHookNameInDev = "useReducer"; - updateHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnUpdateInDEV; +function rerenderReducer(reducer, initialArg, init) { + var hook = updateWorkInProgressHook(); + var queue = hook.queue; - try { - return updateReducer(reducer, initialArg, init); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; - } - }, - useRef: function (initialValue) { - currentHookNameInDev = "useRef"; - updateHookTypesDev(); - return updateRef(); - }, - useState: function (initialState) { - currentHookNameInDev = "useState"; - updateHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnUpdateInDEV; + if (queue === null) { + throw new Error( + "Should have a queue. This is likely a bug in React. Please file an issue." + ); + } - try { - return updateState(initialState); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; - } - }, - useDebugValue: function (value, formatterFn) { - currentHookNameInDev = "useDebugValue"; - updateHookTypesDev(); - return updateDebugValue(); - }, - useDeferredValue: function (value) { - currentHookNameInDev = "useDeferredValue"; - updateHookTypesDev(); - return updateDeferredValue(value); - }, - useTransition: function () { - currentHookNameInDev = "useTransition"; - updateHookTypesDev(); - return updateTransition(); - }, - useMutableSource: function (source, getSnapshot, subscribe) { - currentHookNameInDev = "useMutableSource"; - updateHookTypesDev(); - return updateMutableSource(source, getSnapshot, subscribe); - }, - useSyncExternalStore: function (subscribe, getSnapshot, getServerSnapshot) { - currentHookNameInDev = "useSyncExternalStore"; - updateHookTypesDev(); - return updateSyncExternalStore(subscribe, getSnapshot); - }, - useId: function () { - currentHookNameInDev = "useId"; - updateHookTypesDev(); - return updateId(); + queue.lastRenderedReducer = reducer; // This is a re-render. Apply the new render phase updates to the previous + // work-in-progress hook. + + var dispatch = queue.dispatch; + var lastRenderPhaseUpdate = queue.pending; + var newState = hook.memoizedState; + + if (lastRenderPhaseUpdate !== null) { + // The queue doesn't persist past this render pass. + queue.pending = null; + var firstRenderPhaseUpdate = lastRenderPhaseUpdate.next; + var update = firstRenderPhaseUpdate; + + do { + // Process this render phase update. We don't have to check the + // priority because it will always be the same as the current + // render's. + var action = update.action; + newState = reducer(newState, action); + update = update.next; + } while (update !== firstRenderPhaseUpdate); // Mark that the fiber performed work, but only if the new state is + // different from the current state. + + if (!objectIs(newState, hook.memoizedState)) { + markWorkInProgressReceivedUpdate(); } - }; - { - HooksDispatcherOnUpdateInDEV.use = use; + hook.memoizedState = newState; // Don't persist the state accumulated from the render phase updates to + // the base state unless the queue is empty. + // TODO: Not sure if this is the desired semantics, but it's what we + // do for gDSFP. I can't remember why. + + if (hook.baseQueue === null) { + hook.baseState = newState; + } + + queue.lastRenderedState = newState; } + return [newState, dispatch]; +} + +function readFromUnsubscribedMutableSource(root, source, getSnapshot) { { - HooksDispatcherOnUpdateInDEV.useMemoCache = useMemoCache; + warnAboutMultipleRenderersDEV(source); } - HooksDispatcherOnRerenderInDEV = { - readContext: function (context) { - return readContext(context); - }, - useCallback: function (callback, deps) { - currentHookNameInDev = "useCallback"; - updateHookTypesDev(); - return updateCallback(callback, deps); - }, - useContext: function (context) { - currentHookNameInDev = "useContext"; - updateHookTypesDev(); - return readContext(context); - }, - useEffect: function (create, deps) { - currentHookNameInDev = "useEffect"; - updateHookTypesDev(); - return updateEffect(create, deps); - }, - useImperativeHandle: function (ref, create, deps) { - currentHookNameInDev = "useImperativeHandle"; - updateHookTypesDev(); - return updateImperativeHandle(ref, create, deps); - }, - useInsertionEffect: function (create, deps) { - currentHookNameInDev = "useInsertionEffect"; - updateHookTypesDev(); - return updateInsertionEffect(create, deps); - }, - useLayoutEffect: function (create, deps) { - currentHookNameInDev = "useLayoutEffect"; - updateHookTypesDev(); - return updateLayoutEffect(create, deps); - }, - useMemo: function (create, deps) { - currentHookNameInDev = "useMemo"; - updateHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnRerenderInDEV; + var getVersion = source._getVersion; + var version = getVersion(source._source); // Is it safe for this component to read from this source during the current render? - try { - return updateMemo(create, deps); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; - } - }, - useReducer: function (reducer, initialArg, init) { - currentHookNameInDev = "useReducer"; - updateHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnRerenderInDEV; + var isSafeToReadFromSource = false; // Check the version first. + // If this render has already been started with a specific version, + // we can use it alone to determine if we can safely read from the source. - try { - return rerenderReducer(reducer, initialArg, init); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; - } - }, - useRef: function (initialValue) { - currentHookNameInDev = "useRef"; - updateHookTypesDev(); - return updateRef(); - }, - useState: function (initialState) { - currentHookNameInDev = "useState"; - updateHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnRerenderInDEV; + var currentRenderVersion = getWorkInProgressVersion(source); - try { - return rerenderState(initialState); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; + if (currentRenderVersion !== null) { + // It's safe to read if the store hasn't been mutated since the last time + // we read something. + isSafeToReadFromSource = currentRenderVersion === version; + } else { + // If there's no version, then this is the first time we've read from the + // source during the current render pass, so we need to do a bit more work. + // What we need to determine is if there are any hooks that already + // subscribed to the source, and if so, whether there are any pending + // mutations that haven't been synchronized yet. + // + // If there are no pending mutations, then `root.mutableReadLanes` will be + // empty, and we know we can safely read. + // + // If there *are* pending mutations, we may still be able to safely read + // if the currently rendering lanes are inclusive of the pending mutation + // lanes, since that guarantees that the value we're about to read from + // the source is consistent with the values that we read during the most + // recent mutation. + isSafeToReadFromSource = isSubsetOfLanes( + renderLanes$1, + root.mutableReadLanes + ); + + if (isSafeToReadFromSource) { + // If it's safe to read from this source during the current render, + // store the version in case other components read from it. + // A changed version number will let those components know to throw and restart the render. + setWorkInProgressVersion(source, version); + } + } + + if (isSafeToReadFromSource) { + var snapshot = getSnapshot(source._source); + + { + if (typeof snapshot === "function") { + error( + "Mutable source should not return a function as the snapshot value. " + + "Functions may close over mutable values and cause tearing." + ); } - }, - useDebugValue: function (value, formatterFn) { - currentHookNameInDev = "useDebugValue"; - updateHookTypesDev(); - return updateDebugValue(); - }, - useDeferredValue: function (value) { - currentHookNameInDev = "useDeferredValue"; - updateHookTypesDev(); - return rerenderDeferredValue(value); - }, - useTransition: function () { - currentHookNameInDev = "useTransition"; - updateHookTypesDev(); - return rerenderTransition(); - }, - useMutableSource: function (source, getSnapshot, subscribe) { - currentHookNameInDev = "useMutableSource"; - updateHookTypesDev(); - return updateMutableSource(source, getSnapshot, subscribe); - }, - useSyncExternalStore: function (subscribe, getSnapshot, getServerSnapshot) { - currentHookNameInDev = "useSyncExternalStore"; - updateHookTypesDev(); - return updateSyncExternalStore(subscribe, getSnapshot); - }, - useId: function () { - currentHookNameInDev = "useId"; - updateHookTypesDev(); - return updateId(); } - }; - { - HooksDispatcherOnRerenderInDEV.use = use; + return snapshot; + } else { + // This handles the special case of a mutable source being shared between renderers. + // In that case, if the source is mutated between the first and second renderer, + // The second renderer don't know that it needs to reset the WIP version during unwind, + // (because the hook only marks sources as dirty if it's written to their WIP version). + // That would cause this tear check to throw again and eventually be visible to the user. + // We can avoid this infinite loop by explicitly marking the source as dirty. + // + // This can lead to tearing in the first renderer when it resumes, + // but there's nothing we can do about that (short of throwing here and refusing to continue the render). + markSourceAsDirty(source); // Intentioally throw an error to force React to retry synchronously. During + // the synchronous retry, it will block interleaved mutations, so we should + // get a consistent read. Therefore, the following error should never be + // visible to the user. + // We expect this error not to be thrown during the synchronous retry, + // because we blocked interleaved mutations. + + throw new Error( + "Cannot read from mutable source during the current render without tearing. This may be a bug in React. Please file an issue." + ); } +} - { - HooksDispatcherOnRerenderInDEV.useMemoCache = useMemoCache; +function useMutableSource(hook, source, getSnapshot, subscribe) { + var root = getWorkInProgressRoot(); + + if (root === null) { + throw new Error( + "Expected a work-in-progress root. This is a bug in React. Please file an issue." + ); } - InvalidNestedHooksDispatcherOnMountInDEV = { - readContext: function (context) { - warnInvalidContextAccess(); - return readContext(context); - }, - useCallback: function (callback, deps) { - currentHookNameInDev = "useCallback"; - warnInvalidHookAccess(); - mountHookTypesDev(); - return mountCallback(callback, deps); - }, - useContext: function (context) { - currentHookNameInDev = "useContext"; - warnInvalidHookAccess(); - mountHookTypesDev(); - return readContext(context); - }, - useEffect: function (create, deps) { - currentHookNameInDev = "useEffect"; - warnInvalidHookAccess(); - mountHookTypesDev(); - return mountEffect(create, deps); - }, - useImperativeHandle: function (ref, create, deps) { - currentHookNameInDev = "useImperativeHandle"; - warnInvalidHookAccess(); - mountHookTypesDev(); - return mountImperativeHandle(ref, create, deps); - }, - useInsertionEffect: function (create, deps) { - currentHookNameInDev = "useInsertionEffect"; - warnInvalidHookAccess(); - mountHookTypesDev(); - return mountInsertionEffect(create, deps); - }, - useLayoutEffect: function (create, deps) { - currentHookNameInDev = "useLayoutEffect"; - warnInvalidHookAccess(); - mountHookTypesDev(); - return mountLayoutEffect(create, deps); - }, - useMemo: function (create, deps) { - currentHookNameInDev = "useMemo"; - warnInvalidHookAccess(); - mountHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnMountInDEV; + var getVersion = source._getVersion; + var version = getVersion(source._source); + var dispatcher = ReactCurrentDispatcher$1.current; // eslint-disable-next-line prefer-const - try { - return mountMemo(create, deps); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; - } - }, - useReducer: function (reducer, initialArg, init) { - currentHookNameInDev = "useReducer"; - warnInvalidHookAccess(); - mountHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnMountInDEV; + var _dispatcher$useState = dispatcher.useState(function () { + return readFromUnsubscribedMutableSource(root, source, getSnapshot); + }), + currentSnapshot = _dispatcher$useState[0], + setSnapshot = _dispatcher$useState[1]; - try { - return mountReducer(reducer, initialArg, init); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; + var snapshot = currentSnapshot; // Grab a handle to the state hook as well. + // We use it to clear the pending update queue if we have a new source. + + var stateHook = workInProgressHook; + var memoizedState = hook.memoizedState; + var refs = memoizedState.refs; + var prevGetSnapshot = refs.getSnapshot; + var prevSource = memoizedState.source; + var prevSubscribe = memoizedState.subscribe; + var fiber = currentlyRenderingFiber$1; + hook.memoizedState = { + refs: refs, + source: source, + subscribe: subscribe + }; // Sync the values needed by our subscription handler after each commit. + + dispatcher.useEffect( + function () { + refs.getSnapshot = getSnapshot; // Normally the dispatch function for a state hook never changes, + // but this hook recreates the queue in certain cases to avoid updates from stale sources. + // handleChange() below needs to reference the dispatch function without re-subscribing, + // so we use a ref to ensure that it always has the latest version. + + refs.setSnapshot = setSnapshot; // Check for a possible change between when we last rendered now. + + var maybeNewVersion = getVersion(source._source); + + if (!objectIs(version, maybeNewVersion)) { + var maybeNewSnapshot = getSnapshot(source._source); + + { + if (typeof maybeNewSnapshot === "function") { + error( + "Mutable source should not return a function as the snapshot value. " + + "Functions may close over mutable values and cause tearing." + ); + } + } + + if (!objectIs(snapshot, maybeNewSnapshot)) { + setSnapshot(maybeNewSnapshot); + var lane = requestUpdateLane(fiber); + markRootMutableRead(root, lane); + } // If the source mutated between render and now, + // there may be state updates already scheduled from the old source. + // Entangle the updates so that they render in the same batch. + + markRootEntangled(root, root.mutableReadLanes); } }, - useRef: function (initialValue) { - currentHookNameInDev = "useRef"; - warnInvalidHookAccess(); - mountHookTypesDev(); - return mountRef(initialValue); - }, - useState: function (initialState) { - currentHookNameInDev = "useState"; - warnInvalidHookAccess(); - mountHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnMountInDEV; + [getSnapshot, source, subscribe] + ); // If we got a new source or subscribe function, re-subscribe in a passive effect. - try { - return mountState(initialState); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; + dispatcher.useEffect( + function () { + var handleChange = function () { + var latestGetSnapshot = refs.getSnapshot; + var latestSetSnapshot = refs.setSnapshot; + + try { + latestSetSnapshot(latestGetSnapshot(source._source)); // Record a pending mutable source update with the same expiration time. + + var lane = requestUpdateLane(fiber); + markRootMutableRead(root, lane); + } catch (error) { + // A selector might throw after a source mutation. + // e.g. it might try to read from a part of the store that no longer exists. + // In this case we should still schedule an update with React. + // Worst case the selector will throw again and then an error boundary will handle it. + latestSetSnapshot(function () { + throw error; + }); + } + }; + + var unsubscribe = subscribe(source._source, handleChange); + + { + if (typeof unsubscribe !== "function") { + error( + "Mutable source subscribe function must return an unsubscribe function." + ); + } } + + return unsubscribe; }, - useDebugValue: function (value, formatterFn) { - currentHookNameInDev = "useDebugValue"; - warnInvalidHookAccess(); - mountHookTypesDev(); - return mountDebugValue(); - }, - useDeferredValue: function (value) { - currentHookNameInDev = "useDeferredValue"; - warnInvalidHookAccess(); - mountHookTypesDev(); - return mountDeferredValue(value); - }, - useTransition: function () { - currentHookNameInDev = "useTransition"; - warnInvalidHookAccess(); - mountHookTypesDev(); - return mountTransition(); - }, - useMutableSource: function (source, getSnapshot, subscribe) { - currentHookNameInDev = "useMutableSource"; - warnInvalidHookAccess(); - mountHookTypesDev(); - return mountMutableSource(source, getSnapshot, subscribe); - }, - useSyncExternalStore: function (subscribe, getSnapshot, getServerSnapshot) { - currentHookNameInDev = "useSyncExternalStore"; - warnInvalidHookAccess(); - mountHookTypesDev(); - return mountSyncExternalStore(subscribe, getSnapshot); - }, - useId: function () { - currentHookNameInDev = "useId"; - warnInvalidHookAccess(); - mountHookTypesDev(); - return mountId(); - } - }; + [source, subscribe] + ); // If any of the inputs to useMutableSource change, reading is potentially unsafe. + // + // If either the source or the subscription have changed we can't can't trust the update queue. + // Maybe the source changed in a way that the old subscription ignored but the new one depends on. + // + // If the getSnapshot function changed, we also shouldn't rely on the update queue. + // It's possible that the underlying source was mutated between the when the last "change" event fired, + // and when the current render (with the new getSnapshot function) is processed. + // + // In both cases, we need to throw away pending updates (since they are no longer relevant) + // and treat reading from the source as we do in the mount case. - { - InvalidNestedHooksDispatcherOnMountInDEV.use = function (usable) { - warnInvalidHookAccess(); - return use(usable); + if ( + !objectIs(prevGetSnapshot, getSnapshot) || + !objectIs(prevSource, source) || + !objectIs(prevSubscribe, subscribe) + ) { + // Create a new queue and setState method, + // So if there are interleaved updates, they get pushed to the older queue. + // When this becomes current, the previous queue and dispatch method will be discarded, + // including any interleaving updates that occur. + var newQueue = { + pending: null, + lanes: NoLanes, + dispatch: null, + lastRenderedReducer: basicStateReducer, + lastRenderedState: snapshot }; + newQueue.dispatch = setSnapshot = dispatchSetState.bind( + null, + currentlyRenderingFiber$1, + newQueue + ); + stateHook.queue = newQueue; + stateHook.baseQueue = null; + snapshot = readFromUnsubscribedMutableSource(root, source, getSnapshot); + stateHook.memoizedState = stateHook.baseState = snapshot; } - { - InvalidNestedHooksDispatcherOnMountInDEV.useMemoCache = function (size) { - warnInvalidHookAccess(); - return useMemoCache(size); - }; - } + return snapshot; +} - InvalidNestedHooksDispatcherOnUpdateInDEV = { - readContext: function (context) { - warnInvalidContextAccess(); - return readContext(context); - }, - useCallback: function (callback, deps) { - currentHookNameInDev = "useCallback"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateCallback(callback, deps); - }, - useContext: function (context) { - currentHookNameInDev = "useContext"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return readContext(context); - }, - useEffect: function (create, deps) { - currentHookNameInDev = "useEffect"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateEffect(create, deps); - }, - useImperativeHandle: function (ref, create, deps) { - currentHookNameInDev = "useImperativeHandle"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateImperativeHandle(ref, create, deps); - }, - useInsertionEffect: function (create, deps) { - currentHookNameInDev = "useInsertionEffect"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateInsertionEffect(create, deps); - }, - useLayoutEffect: function (create, deps) { - currentHookNameInDev = "useLayoutEffect"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateLayoutEffect(create, deps); +function mountMutableSource(source, getSnapshot, subscribe) { + var hook = mountWorkInProgressHook(); + hook.memoizedState = { + refs: { + getSnapshot: getSnapshot, + setSnapshot: null }, - useMemo: function (create, deps) { - currentHookNameInDev = "useMemo"; - warnInvalidHookAccess(); - updateHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnUpdateInDEV; + source: source, + subscribe: subscribe + }; + return useMutableSource(hook, source, getSnapshot, subscribe); +} - try { - return updateMemo(create, deps); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; - } - }, - useReducer: function (reducer, initialArg, init) { - currentHookNameInDev = "useReducer"; - warnInvalidHookAccess(); - updateHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnUpdateInDEV; +function updateMutableSource(source, getSnapshot, subscribe) { + var hook = updateWorkInProgressHook(); + return useMutableSource(hook, source, getSnapshot, subscribe); +} - try { - return updateReducer(reducer, initialArg, init); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; - } - }, - useRef: function (initialValue) { - currentHookNameInDev = "useRef"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateRef(); - }, - useState: function (initialState) { - currentHookNameInDev = "useState"; - warnInvalidHookAccess(); - updateHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnUpdateInDEV; +function mountSyncExternalStore(subscribe, getSnapshot, getServerSnapshot) { + var fiber = currentlyRenderingFiber$1; + var hook = mountWorkInProgressHook(); + var nextSnapshot; - try { - return updateState(initialState); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; + { + nextSnapshot = getSnapshot(); + + { + if (!didWarnUncachedGetSnapshot) { + var cachedSnapshot = getSnapshot(); + + if (!objectIs(nextSnapshot, cachedSnapshot)) { + error( + "The result of getSnapshot should be cached to avoid an infinite loop" + ); + + didWarnUncachedGetSnapshot = true; + } } - }, - useDebugValue: function (value, formatterFn) { - currentHookNameInDev = "useDebugValue"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateDebugValue(); - }, - useDeferredValue: function (value) { - currentHookNameInDev = "useDeferredValue"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateDeferredValue(value); - }, - useTransition: function () { - currentHookNameInDev = "useTransition"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateTransition(); - }, - useMutableSource: function (source, getSnapshot, subscribe) { - currentHookNameInDev = "useMutableSource"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateMutableSource(source, getSnapshot, subscribe); - }, - useSyncExternalStore: function (subscribe, getSnapshot, getServerSnapshot) { - currentHookNameInDev = "useSyncExternalStore"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateSyncExternalStore(subscribe, getSnapshot); - }, - useId: function () { - currentHookNameInDev = "useId"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateId(); + } // Unless we're rendering a blocking lane, schedule a consistency check. + // Right before committing, we will walk the tree and check if any of the + // stores were mutated. + // + // We won't do this if we're hydrating server-rendered content, because if + // the content is stale, it's already visible anyway. Instead we'll patch + // it up in a passive effect. + + var root = getWorkInProgressRoot(); + + if (root === null) { + throw new Error( + "Expected a work-in-progress root. This is a bug in React. Please file an issue." + ); + } + + if (!includesBlockingLane(root, renderLanes$1)) { + pushStoreConsistencyCheck(fiber, getSnapshot, nextSnapshot); } + } // Read the current snapshot from the store on every render. This breaks the + // normal rules of React, and only works because store updates are + // always synchronous. + + hook.memoizedState = nextSnapshot; + var inst = { + value: nextSnapshot, + getSnapshot: getSnapshot }; + hook.queue = inst; // Schedule an effect to subscribe to the store. + + mountEffect(subscribeToStore.bind(null, fiber, inst, subscribe), [subscribe]); // Schedule an effect to update the mutable instance fields. We will update + // this whenever subscribe, getSnapshot, or value changes. Because there's no + // clean-up function, and we track the deps correctly, we can call pushEffect + // directly, without storing any additional state. For the same reason, we + // don't need to set a static flag, either. + // TODO: We can move this to the passive phase once we add a pre-commit + // consistency check. See the next comment. + + fiber.flags |= Passive$1; + pushEffect( + HasEffect | Passive, + updateStoreInstance.bind(null, fiber, inst, nextSnapshot, getSnapshot), + undefined, + null + ); + return nextSnapshot; +} + +function updateSyncExternalStore(subscribe, getSnapshot, getServerSnapshot) { + var fiber = currentlyRenderingFiber$1; + var hook = updateWorkInProgressHook(); // Read the current snapshot from the store on every render. This breaks the + // normal rules of React, and only works because store updates are + // always synchronous. + + var nextSnapshot = getSnapshot(); { - InvalidNestedHooksDispatcherOnUpdateInDEV.use = function (usable) { - warnInvalidHookAccess(); - return use(usable); - }; + if (!didWarnUncachedGetSnapshot) { + var cachedSnapshot = getSnapshot(); + + if (!objectIs(nextSnapshot, cachedSnapshot)) { + error( + "The result of getSnapshot should be cached to avoid an infinite loop" + ); + + didWarnUncachedGetSnapshot = true; + } + } } - { - InvalidNestedHooksDispatcherOnUpdateInDEV.useMemoCache = function (size) { - warnInvalidHookAccess(); - return useMemoCache(size); - }; + var prevSnapshot = (currentHook || hook).memoizedState; + var snapshotChanged = !objectIs(prevSnapshot, nextSnapshot); + + if (snapshotChanged) { + hook.memoizedState = nextSnapshot; + markWorkInProgressReceivedUpdate(); } - InvalidNestedHooksDispatcherOnRerenderInDEV = { - readContext: function (context) { - warnInvalidContextAccess(); - return readContext(context); - }, - useCallback: function (callback, deps) { - currentHookNameInDev = "useCallback"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateCallback(callback, deps); - }, - useContext: function (context) { - currentHookNameInDev = "useContext"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return readContext(context); - }, - useEffect: function (create, deps) { - currentHookNameInDev = "useEffect"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateEffect(create, deps); - }, - useImperativeHandle: function (ref, create, deps) { - currentHookNameInDev = "useImperativeHandle"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateImperativeHandle(ref, create, deps); - }, - useInsertionEffect: function (create, deps) { - currentHookNameInDev = "useInsertionEffect"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateInsertionEffect(create, deps); - }, - useLayoutEffect: function (create, deps) { - currentHookNameInDev = "useLayoutEffect"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateLayoutEffect(create, deps); - }, - useMemo: function (create, deps) { - currentHookNameInDev = "useMemo"; - warnInvalidHookAccess(); - updateHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnUpdateInDEV; + var inst = hook.queue; + updateEffect(subscribeToStore.bind(null, fiber, inst, subscribe), [ + subscribe + ]); // Whenever getSnapshot or subscribe changes, we need to check in the + // commit phase if there was an interleaved mutation. In concurrent mode + // this can happen all the time, but even in synchronous mode, an earlier + // effect may have mutated the store. - try { - return updateMemo(create, deps); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; - } - }, - useReducer: function (reducer, initialArg, init) { - currentHookNameInDev = "useReducer"; - warnInvalidHookAccess(); - updateHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnUpdateInDEV; + if ( + inst.getSnapshot !== getSnapshot || + snapshotChanged || // Check if the susbcribe function changed. We can save some memory by + // checking whether we scheduled a subscription effect above. + (workInProgressHook !== null && + workInProgressHook.memoizedState.tag & HasEffect) + ) { + fiber.flags |= Passive$1; + pushEffect( + HasEffect | Passive, + updateStoreInstance.bind(null, fiber, inst, nextSnapshot, getSnapshot), + undefined, + null + ); // Unless we're rendering a blocking lane, schedule a consistency check. + // Right before committing, we will walk the tree and check if any of the + // stores were mutated. - try { - return rerenderReducer(reducer, initialArg, init); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; - } - }, - useRef: function (initialValue) { - currentHookNameInDev = "useRef"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateRef(); - }, - useState: function (initialState) { - currentHookNameInDev = "useState"; - warnInvalidHookAccess(); - updateHookTypesDev(); - var prevDispatcher = ReactCurrentDispatcher$1.current; - ReactCurrentDispatcher$1.current = - InvalidNestedHooksDispatcherOnUpdateInDEV; + var root = getWorkInProgressRoot(); - try { - return rerenderState(initialState); - } finally { - ReactCurrentDispatcher$1.current = prevDispatcher; - } - }, - useDebugValue: function (value, formatterFn) { - currentHookNameInDev = "useDebugValue"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateDebugValue(); - }, - useDeferredValue: function (value) { - currentHookNameInDev = "useDeferredValue"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return rerenderDeferredValue(value); - }, - useTransition: function () { - currentHookNameInDev = "useTransition"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return rerenderTransition(); - }, - useMutableSource: function (source, getSnapshot, subscribe) { - currentHookNameInDev = "useMutableSource"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateMutableSource(source, getSnapshot, subscribe); - }, - useSyncExternalStore: function (subscribe, getSnapshot, getServerSnapshot) { - currentHookNameInDev = "useSyncExternalStore"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateSyncExternalStore(subscribe, getSnapshot); - }, - useId: function () { - currentHookNameInDev = "useId"; - warnInvalidHookAccess(); - updateHookTypesDev(); - return updateId(); + if (root === null) { + throw new Error( + "Expected a work-in-progress root. This is a bug in React. Please file an issue." + ); } - }; - { - InvalidNestedHooksDispatcherOnRerenderInDEV.use = function (usable) { - warnInvalidHookAccess(); - return use(usable); - }; + if (!includesBlockingLane(root, renderLanes$1)) { + pushStoreConsistencyCheck(fiber, getSnapshot, nextSnapshot); + } } - { - InvalidNestedHooksDispatcherOnRerenderInDEV.useMemoCache = function (size) { - warnInvalidHookAccess(); - return useMemoCache(size); - }; - } + return nextSnapshot; } -var now = Scheduler.unstable_now; -var commitTime = 0; -var layoutEffectStartTime = -1; -var profilerStartTime = -1; -var passiveEffectStartTime = -1; -/** - * Tracks whether the current update was a nested/cascading update (scheduled from a layout effect). - * - * The overall sequence is: - * 1. render - * 2. commit (and call `onRender`, `onCommit`) - * 3. check for nested updates - * 4. flush passive effects (and call `onPostCommit`) - * - * Nested updates are identified in step 3 above, - * but step 4 still applies to the work that was just committed. - * We use two flags to track nested updates then: - * one tracks whether the upcoming update is a nested update, - * and the other tracks whether the current update was a nested update. - * The first value gets synced to the second at the start of the render phase. - */ - -var currentUpdateIsNested = false; -var nestedUpdateScheduled = false; +function pushStoreConsistencyCheck(fiber, getSnapshot, renderedSnapshot) { + fiber.flags |= StoreConsistency; + var check = { + getSnapshot: getSnapshot, + value: renderedSnapshot + }; + var componentUpdateQueue = currentlyRenderingFiber$1.updateQueue; -function isCurrentUpdateNested() { - return currentUpdateIsNested; -} + if (componentUpdateQueue === null) { + componentUpdateQueue = createFunctionComponentUpdateQueue(); + currentlyRenderingFiber$1.updateQueue = componentUpdateQueue; + componentUpdateQueue.stores = [check]; + } else { + var stores = componentUpdateQueue.stores; -function markNestedUpdateScheduled() { - { - nestedUpdateScheduled = true; + if (stores === null) { + componentUpdateQueue.stores = [check]; + } else { + stores.push(check); + } } } -function resetNestedUpdateFlag() { - { - currentUpdateIsNested = false; - nestedUpdateScheduled = false; - } -} +function updateStoreInstance(fiber, inst, nextSnapshot, getSnapshot) { + // These are updated in the passive phase + inst.value = nextSnapshot; + inst.getSnapshot = getSnapshot; // Something may have been mutated in between render and commit. This could + // have been in an event that fired before the passive effects, or it could + // have been in a layout effect. In that case, we would have used the old + // snapsho and getSnapshot values to bail out. We need to check one more time. -function syncNestedUpdateFlag() { - { - currentUpdateIsNested = nestedUpdateScheduled; - nestedUpdateScheduled = false; + if (checkIfSnapshotChanged(inst)) { + // Force a re-render. + forceStoreRerender(fiber); } } -function getCommitTime() { - return commitTime; -} +function subscribeToStore(fiber, inst, subscribe) { + var handleStoreChange = function () { + // The store changed. Check if the snapshot changed since the last time we + // read from the store. + if (checkIfSnapshotChanged(inst)) { + // Force a re-render. + forceStoreRerender(fiber); + } + }; // Subscribe to the store and return a clean-up function. -function recordCommitTime() { - commitTime = now(); + return subscribe(handleStoreChange); } -function startProfilerTimer(fiber) { - profilerStartTime = now(); +function checkIfSnapshotChanged(inst) { + var latestGetSnapshot = inst.getSnapshot; + var prevValue = inst.value; - if (fiber.actualStartTime < 0) { - fiber.actualStartTime = now(); + try { + var nextValue = latestGetSnapshot(); + return !objectIs(prevValue, nextValue); + } catch (error) { + return true; } } -function stopProfilerTimerIfRunning(fiber) { - profilerStartTime = -1; -} - -function stopProfilerTimerIfRunningAndRecordDelta(fiber, overrideBaseTime) { - if (profilerStartTime >= 0) { - var elapsedTime = now() - profilerStartTime; - fiber.actualDuration += elapsedTime; - - if (overrideBaseTime) { - fiber.selfBaseDuration = elapsedTime; - } +function forceStoreRerender(fiber) { + var root = enqueueConcurrentRenderForLane(fiber, SyncLane); - profilerStartTime = -1; + if (root !== null) { + scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); } } -function recordLayoutEffectDuration(fiber) { - if (layoutEffectStartTime >= 0) { - var elapsedTime = now() - layoutEffectStartTime; - layoutEffectStartTime = -1; // Store duration on the next nearest Profiler ancestor - // Or the root (for the DevTools Profiler to read) - - var parentFiber = fiber.return; +function mountState(initialState) { + var hook = mountWorkInProgressHook(); - while (parentFiber !== null) { - switch (parentFiber.tag) { - case HostRoot: - var root = parentFiber.stateNode; - root.effectDuration += elapsedTime; - return; + if (typeof initialState === "function") { + // $FlowFixMe: Flow doesn't like mixed types + initialState = initialState(); + } - case Profiler: - var parentStateNode = parentFiber.stateNode; - parentStateNode.effectDuration += elapsedTime; - return; - } + hook.memoizedState = hook.baseState = initialState; + var queue = { + pending: null, + lanes: NoLanes, + dispatch: null, + lastRenderedReducer: basicStateReducer, + lastRenderedState: initialState + }; + hook.queue = queue; + var dispatch = (queue.dispatch = dispatchSetState.bind( + null, + currentlyRenderingFiber$1, + queue + )); + return [hook.memoizedState, dispatch]; +} - parentFiber = parentFiber.return; +function updateState(initialState) { + return updateReducer(basicStateReducer); +} + +function rerenderState(initialState) { + return rerenderReducer(basicStateReducer); +} + +function pushEffect(tag, create, destroy, deps) { + var effect = { + tag: tag, + create: create, + destroy: destroy, + deps: deps, + // Circular + next: null + }; + var componentUpdateQueue = currentlyRenderingFiber$1.updateQueue; + + if (componentUpdateQueue === null) { + componentUpdateQueue = createFunctionComponentUpdateQueue(); + currentlyRenderingFiber$1.updateQueue = componentUpdateQueue; + componentUpdateQueue.lastEffect = effect.next = effect; + } else { + var lastEffect = componentUpdateQueue.lastEffect; + + if (lastEffect === null) { + componentUpdateQueue.lastEffect = effect.next = effect; + } else { + var firstEffect = lastEffect.next; + lastEffect.next = effect; + effect.next = firstEffect; + componentUpdateQueue.lastEffect = effect; } } + + return effect; } -function recordPassiveEffectDuration(fiber) { - if (passiveEffectStartTime >= 0) { - var elapsedTime = now() - passiveEffectStartTime; - passiveEffectStartTime = -1; // Store duration on the next nearest Profiler ancestor - // Or the root (for the DevTools Profiler to read) +var stackContainsErrorMessage = null; - var parentFiber = fiber.return; +function getCallerStackFrame() { + // eslint-disable-next-line react-internal/prod-error-codes + var stackFrames = new Error("Error message").stack.split("\n"); // Some browsers (e.g. Chrome) include the error message in the stack + // but others (e.g. Firefox) do not. - while (parentFiber !== null) { - switch (parentFiber.tag) { - case HostRoot: - var root = parentFiber.stateNode; + if (stackContainsErrorMessage === null) { + stackContainsErrorMessage = stackFrames[0].includes("Error message"); + } - if (root !== null) { - root.passiveEffectDuration += elapsedTime; - } + return stackContainsErrorMessage + ? stackFrames.slice(3, 4).join("\n") + : stackFrames.slice(2, 3).join("\n"); +} - return; +function mountRef(initialValue) { + var hook = mountWorkInProgressHook(); - case Profiler: - var parentStateNode = parentFiber.stateNode; + if (enableUseRefAccessWarning) { + { + // Support lazy initialization pattern shown in docs. + // We need to store the caller stack frame so that we don't warn on subsequent renders. + var hasBeenInitialized = initialValue != null; + var lazyInitGetterStack = null; + var didCheckForLazyInit = false; // Only warn once per component+hook. - if (parentStateNode !== null) { - // Detached fibers have their state node cleared out. - // In this case, the return pointer is also cleared out, - // so we won't be able to report the time spent in this Profiler's subtree. - parentStateNode.passiveEffectDuration += elapsedTime; + var didWarnAboutRead = false; + var didWarnAboutWrite = false; + var current = initialValue; + var ref = { + get current() { + if (!hasBeenInitialized) { + didCheckForLazyInit = true; + lazyInitGetterStack = getCallerStackFrame(); + } else if (currentlyRenderingFiber$1 !== null && !didWarnAboutRead) { + if ( + lazyInitGetterStack === null || + lazyInitGetterStack !== getCallerStackFrame() + ) { + didWarnAboutRead = true; + + warn( + "%s: Unsafe read of a mutable value during render.\n\n" + + "Reading from a ref during render is only safe if:\n" + + "1. The ref value has not been updated, or\n" + + "2. The ref holds a lazily-initialized value that is only set once.\n", + getComponentNameFromFiber(currentlyRenderingFiber$1) || + "Unknown" + ); + } } - return; - } + return current; + }, - parentFiber = parentFiber.return; + set current(value) { + if (currentlyRenderingFiber$1 !== null && !didWarnAboutWrite) { + if (hasBeenInitialized || !didCheckForLazyInit) { + didWarnAboutWrite = true; + + warn( + "%s: Unsafe write of a mutable value during render.\n\n" + + "Writing to a ref during render is only safe if the ref holds " + + "a lazily-initialized value that is only set once.\n", + getComponentNameFromFiber(currentlyRenderingFiber$1) || + "Unknown" + ); + } + } + + hasBeenInitialized = true; + current = value; + } + }; + Object.seal(ref); + hook.memoizedState = ref; + return ref; } + } else { + var _ref2 = { + current: initialValue + }; + hook.memoizedState = _ref2; + return _ref2; } } -function startLayoutEffectTimer() { - layoutEffectStartTime = now(); +function updateRef(initialValue) { + var hook = updateWorkInProgressHook(); + return hook.memoizedState; } -function startPassiveEffectTimer() { - passiveEffectStartTime = now(); +function mountEffectImpl(fiberFlags, hookFlags, create, deps) { + var hook = mountWorkInProgressHook(); + var nextDeps = deps === undefined ? null : deps; + currentlyRenderingFiber$1.flags |= fiberFlags; + hook.memoizedState = pushEffect( + HasEffect | hookFlags, + create, + undefined, + nextDeps + ); } -function transferActualDuration(fiber) { - // Transfer time spent rendering these children so we don't lose it - // after we rerender. This is used as a helper in special cases - // where we should count the work of multiple passes. - var child = fiber.child; +function updateEffectImpl(fiberFlags, hookFlags, create, deps) { + var hook = updateWorkInProgressHook(); + var nextDeps = deps === undefined ? null : deps; + var destroy = undefined; // currentHook is null when rerendering after a render phase state update. - while (child) { - // $FlowFixMe[unsafe-addition] addition with possible null/undefined value - fiber.actualDuration += child.actualDuration; - child = child.sibling; - } -} + if (currentHook !== null) { + var prevEffect = currentHook.memoizedState; + destroy = prevEffect.destroy; -function resolveDefaultProps(Component, baseProps) { - if (Component && Component.defaultProps) { - // Resolve default props. Taken from ReactElement - var props = assign({}, baseProps); - var defaultProps = Component.defaultProps; + if (nextDeps !== null) { + var prevDeps = prevEffect.deps; - for (var propName in defaultProps) { - if (props[propName] === undefined) { - props[propName] = defaultProps[propName]; + if (areHookInputsEqual(nextDeps, prevDeps)) { + hook.memoizedState = pushEffect(hookFlags, create, destroy, nextDeps); + return; } } + } - return props; + currentlyRenderingFiber$1.flags |= fiberFlags; + hook.memoizedState = pushEffect( + HasEffect | hookFlags, + create, + destroy, + nextDeps + ); +} + +function mountEffect(create, deps) { + if ((currentlyRenderingFiber$1.mode & StrictEffectsMode) !== NoMode) { + mountEffectImpl( + MountPassiveDev | Passive$1 | PassiveStatic, + Passive, + create, + deps + ); + } else { + mountEffectImpl(Passive$1 | PassiveStatic, Passive, create, deps); } +} - return baseProps; +function updateEffect(create, deps) { + updateEffectImpl(Passive$1, Passive, create, deps); } -var fakeInternalInstance = {}; -var didWarnAboutStateAssignmentForComponent; -var didWarnAboutUninitializedState; -var didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate; -var didWarnAboutLegacyLifecyclesAndDerivedState; -var didWarnAboutUndefinedDerivedState; -var didWarnAboutDirectlyAssigningPropsToState; -var didWarnAboutContextTypeAndContextTypes; -var didWarnAboutInvalidateContextType; -var didWarnOnInvalidCallback; +function mountInsertionEffect(create, deps) { + mountEffectImpl(Update, Insertion, create, deps); +} -{ - didWarnAboutStateAssignmentForComponent = new Set(); - didWarnAboutUninitializedState = new Set(); - didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate = new Set(); - didWarnAboutLegacyLifecyclesAndDerivedState = new Set(); - didWarnAboutDirectlyAssigningPropsToState = new Set(); - didWarnAboutUndefinedDerivedState = new Set(); - didWarnAboutContextTypeAndContextTypes = new Set(); - didWarnAboutInvalidateContextType = new Set(); - didWarnOnInvalidCallback = new Set(); // This is so gross but it's at least non-critical and can be removed if - // it causes problems. This is meant to give a nicer error message for - // ReactDOM15.unstable_renderSubtreeIntoContainer(reactDOM16Component, - // ...)) which otherwise throws a "_processChildContext is not a function" - // exception. - - Object.defineProperty(fakeInternalInstance, "_processChildContext", { - enumerable: false, - value: function () { - throw new Error( - "_processChildContext is not available in React 16+. This likely " + - "means you have multiple copies of React and are attempting to nest " + - "a React 15 tree inside a React 16 tree using " + - "unstable_renderSubtreeIntoContainer, which isn't supported. Try " + - "to make sure you have only one copy of React (and ideally, switch " + - "to ReactDOM.createPortal)." - ); - } - }); - Object.freeze(fakeInternalInstance); +function updateInsertionEffect(create, deps) { + return updateEffectImpl(Update, Insertion, create, deps); } -function warnOnInvalidCallback(callback, callerName) { - { - if (callback === null || typeof callback === "function") { - return; - } - - var key = callerName + "_" + callback; - - if (!didWarnOnInvalidCallback.has(key)) { - didWarnOnInvalidCallback.add(key); +function mountLayoutEffect(create, deps) { + var fiberFlags = Update | LayoutStatic; - error( - "%s(...): Expected the last optional `callback` argument to be a " + - "function. Instead received: %s.", - callerName, - callback - ); - } + if ((currentlyRenderingFiber$1.mode & StrictEffectsMode) !== NoMode) { + fiberFlags |= MountLayoutDev; } + + return mountEffectImpl(fiberFlags, Layout, create, deps); } -function warnOnUndefinedDerivedState(type, partialState) { - { - if (partialState === undefined) { - var componentName = getComponentNameFromType(type) || "Component"; +function updateLayoutEffect(create, deps) { + return updateEffectImpl(Update, Layout, create, deps); +} - if (!didWarnAboutUndefinedDerivedState.has(componentName)) { - didWarnAboutUndefinedDerivedState.add(componentName); +function imperativeHandleEffect(create, ref) { + if (typeof ref === "function") { + var refCallback = ref; + var inst = create(); + refCallback(inst); + return function () { + refCallback(null); + }; + } else if (ref !== null && ref !== undefined) { + var refObject = ref; + { + if (!refObject.hasOwnProperty("current")) { error( - "%s.getDerivedStateFromProps(): A valid state object (or null) must be returned. " + - "You have returned undefined.", - componentName + "Expected useImperativeHandle() first argument to either be a " + + "ref callback or React.createRef() object. Instead received: %s.", + "an object with keys {" + Object.keys(refObject).join(", ") + "}" ); } } + + var _inst = create(); + + refObject.current = _inst; + return function () { + refObject.current = null; + }; } } -function applyDerivedStateFromProps( - workInProgress, - ctor, - getDerivedStateFromProps, - nextProps -) { - var prevState = workInProgress.memoizedState; - var partialState = getDerivedStateFromProps(nextProps, prevState); - +function mountImperativeHandle(ref, create, deps) { { - if (workInProgress.mode & StrictLegacyMode) { - setIsStrictModeForDevtools(true); - - try { - // Invoke the function an extra time to help detect side-effects. - partialState = getDerivedStateFromProps(nextProps, prevState); - } finally { - setIsStrictModeForDevtools(false); - } + if (typeof create !== "function") { + error( + "Expected useImperativeHandle() second argument to be a function " + + "that creates a handle. Instead received: %s.", + create !== null ? typeof create : "null" + ); } + } // TODO: If deps are provided, should we skip comparing the ref itself? - warnOnUndefinedDerivedState(ctor, partialState); - } // Merge the partial state and the previous state. - - var memoizedState = - partialState === null || partialState === undefined - ? prevState - : assign({}, prevState, partialState); - workInProgress.memoizedState = memoizedState; // Once the update queue is empty, persist the derived state onto the - // base state. + var effectDeps = + deps !== null && deps !== undefined ? deps.concat([ref]) : null; + var fiberFlags = Update | LayoutStatic; - if (workInProgress.lanes === NoLanes) { - // Queue is always non-null for classes - var updateQueue = workInProgress.updateQueue; - updateQueue.baseState = memoizedState; + if ((currentlyRenderingFiber$1.mode & StrictEffectsMode) !== NoMode) { + fiberFlags |= MountLayoutDev; } + + mountEffectImpl( + fiberFlags, + Layout, + imperativeHandleEffect.bind(null, create, ref), + effectDeps + ); } -var classComponentUpdater = { - isMounted: isMounted, - // $FlowFixMe[missing-local-annot] - enqueueSetState: function (inst, payload, callback) { - var fiber = get(inst); - var lane = requestUpdateLane(fiber); - var update = createUpdate(lane); - update.payload = payload; +function updateImperativeHandle(ref, create, deps) { + { + if (typeof create !== "function") { + error( + "Expected useImperativeHandle() second argument to be a function " + + "that creates a handle. Instead received: %s.", + create !== null ? typeof create : "null" + ); + } + } // TODO: If deps are provided, should we skip comparing the ref itself? - if (callback !== undefined && callback !== null) { - { - warnOnInvalidCallback(callback, "setState"); - } + var effectDeps = + deps !== null && deps !== undefined ? deps.concat([ref]) : null; + updateEffectImpl( + Update, + Layout, + imperativeHandleEffect.bind(null, create, ref), + effectDeps + ); +} - update.callback = callback; - } +function mountDebugValue(value, formatterFn) { + // This hook is normally a no-op. + // The react-debug-hooks package injects its own implementation + // so that e.g. DevTools can display custom hook values. +} - var root = enqueueUpdate(fiber, update, lane); +var updateDebugValue = mountDebugValue; - if (root !== null) { - var eventTime = requestEventTime(); - scheduleUpdateOnFiber(root, fiber, lane, eventTime); - entangleTransitions(root, fiber, lane); - } +function mountCallback(callback, deps) { + var hook = mountWorkInProgressHook(); + var nextDeps = deps === undefined ? null : deps; + hook.memoizedState = [callback, nextDeps]; + return callback; +} - { - markStateUpdateScheduled(fiber, lane); - } - }, - enqueueReplaceState: function (inst, payload, callback) { - var fiber = get(inst); - var lane = requestUpdateLane(fiber); - var update = createUpdate(lane); - update.tag = ReplaceState; - update.payload = payload; +function updateCallback(callback, deps) { + var hook = updateWorkInProgressHook(); + var nextDeps = deps === undefined ? null : deps; + var prevState = hook.memoizedState; - if (callback !== undefined && callback !== null) { - { - warnOnInvalidCallback(callback, "replaceState"); - } + if (nextDeps !== null) { + var prevDeps = prevState[1]; - update.callback = callback; + if (areHookInputsEqual(nextDeps, prevDeps)) { + return prevState[0]; } + } - var root = enqueueUpdate(fiber, update, lane); + hook.memoizedState = [callback, nextDeps]; + return callback; +} - if (root !== null) { - var eventTime = requestEventTime(); - scheduleUpdateOnFiber(root, fiber, lane, eventTime); - entangleTransitions(root, fiber, lane); - } +function mountMemo(nextCreate, deps) { + var hook = mountWorkInProgressHook(); + var nextDeps = deps === undefined ? null : deps; - { - markStateUpdateScheduled(fiber, lane); - } - }, - // $FlowFixMe[missing-local-annot] - enqueueForceUpdate: function (inst, callback) { - var fiber = get(inst); - var lane = requestUpdateLane(fiber); - var update = createUpdate(lane); - update.tag = ForceUpdate; + if (shouldDoubleInvokeUserFnsInHooksDEV) { + nextCreate(); + } - if (callback !== undefined && callback !== null) { - { - warnOnInvalidCallback(callback, "forceUpdate"); - } + var nextValue = nextCreate(); + hook.memoizedState = [nextValue, nextDeps]; + return nextValue; +} - update.callback = callback; - } +function updateMemo(nextCreate, deps) { + var hook = updateWorkInProgressHook(); + var nextDeps = deps === undefined ? null : deps; + var prevState = hook.memoizedState; // Assume these are defined. If they're not, areHookInputsEqual will warn. - var root = enqueueUpdate(fiber, update, lane); + if (nextDeps !== null) { + var prevDeps = prevState[1]; - if (root !== null) { - var eventTime = requestEventTime(); - scheduleUpdateOnFiber(root, fiber, lane, eventTime); - entangleTransitions(root, fiber, lane); - } - - { - markForceUpdateScheduled(fiber, lane); + if (areHookInputsEqual(nextDeps, prevDeps)) { + return prevState[0]; } } -}; - -function checkShouldComponentUpdate( - workInProgress, - ctor, - oldProps, - newProps, - oldState, - newState, - nextContext -) { - var instance = workInProgress.stateNode; - if (typeof instance.shouldComponentUpdate === "function") { - var shouldUpdate = instance.shouldComponentUpdate( - newProps, - newState, - nextContext - ); + if (shouldDoubleInvokeUserFnsInHooksDEV) { + nextCreate(); + } - { - if (workInProgress.mode & StrictLegacyMode) { - setIsStrictModeForDevtools(true); + var nextValue = nextCreate(); + hook.memoizedState = [nextValue, nextDeps]; + return nextValue; +} - try { - // Invoke the function an extra time to help detect side-effects. - shouldUpdate = instance.shouldComponentUpdate( - newProps, - newState, - nextContext - ); - } finally { - setIsStrictModeForDevtools(false); - } - } +function mountDeferredValue(value) { + var hook = mountWorkInProgressHook(); + hook.memoizedState = value; + return value; +} - if (shouldUpdate === undefined) { - error( - "%s.shouldComponentUpdate(): Returned undefined instead of a " + - "boolean value. Make sure to return true or false.", - getComponentNameFromType(ctor) || "Component" - ); - } - } +function updateDeferredValue(value) { + var hook = updateWorkInProgressHook(); + var resolvedCurrentHook = currentHook; + var prevValue = resolvedCurrentHook.memoizedState; + return updateDeferredValueImpl(hook, prevValue, value); +} - return shouldUpdate; - } +function rerenderDeferredValue(value) { + var hook = updateWorkInProgressHook(); - if (ctor.prototype && ctor.prototype.isPureReactComponent) { - return ( - !shallowEqual(oldProps, newProps) || !shallowEqual(oldState, newState) - ); + if (currentHook === null) { + // This is a rerender during a mount. + hook.memoizedState = value; + return value; + } else { + // This is a rerender during an update. + var prevValue = currentHook.memoizedState; + return updateDeferredValueImpl(hook, prevValue, value); } - - return true; } -function checkClassInstance(workInProgress, ctor, newProps) { - var instance = workInProgress.stateNode; +function updateDeferredValueImpl(hook, prevValue, value) { + var shouldDeferValue = !includesOnlyNonUrgentLanes(renderLanes$1); - { - var name = getComponentNameFromType(ctor) || "Component"; - var renderPresent = instance.render; + if (shouldDeferValue) { + // This is an urgent update. If the value has changed, keep using the + // previous value and spawn a deferred render to update it later. + if (!objectIs(value, prevValue)) { + // Schedule a deferred render + var deferredLane = claimNextTransitionLane(); + currentlyRenderingFiber$1.lanes = mergeLanes( + currentlyRenderingFiber$1.lanes, + deferredLane + ); + markSkippedUpdateLanes(deferredLane); // Set this to true to indicate that the rendered value is inconsistent + // from the latest value. The name "baseState" doesn't really match how we + // use it because we're reusing a state hook field instead of creating a + // new one. - if (!renderPresent) { - if (ctor.prototype && typeof ctor.prototype.render === "function") { - error( - "%s(...): No `render` method found on the returned component " + - "instance: did you accidentally return an object from the constructor?", - name - ); - } else { - error( - "%s(...): No `render` method found on the returned component " + - "instance: you may have forgotten to define `render`.", - name - ); - } - } + hook.baseState = true; + } // Reuse the previous value - if ( - instance.getInitialState && - !instance.getInitialState.isReactClassApproved && - !instance.state - ) { - error( - "getInitialState was defined on %s, a plain JavaScript class. " + - "This is only supported for classes created using React.createClass. " + - "Did you mean to define a state property instead?", - name - ); + return prevValue; + } else { + // This is not an urgent update, so we can use the latest value regardless + // of what it is. No need to defer it. + // However, if we're currently inside a spawned render, then we need to mark + // this as an update to prevent the fiber from bailing out. + // + // `baseState` is true when the current value is different from the rendered + // value. The name doesn't really match how we use it because we're reusing + // a state hook field instead of creating a new one. + if (hook.baseState) { + // Flip this back to false. + hook.baseState = false; + markWorkInProgressReceivedUpdate(); } - if ( - instance.getDefaultProps && - !instance.getDefaultProps.isReactClassApproved - ) { - error( - "getDefaultProps was defined on %s, a plain JavaScript class. " + - "This is only supported for classes created using React.createClass. " + - "Use a static property to define defaultProps instead.", - name - ); - } + hook.memoizedState = value; + return value; + } +} - if (instance.propTypes) { - error( - "propTypes was defined as an instance property on %s. Use a static " + - "property to define propTypes instead.", - name - ); - } +function startTransition(setPending, callback, options) { + var previousPriority = getCurrentUpdatePriority(); + setCurrentUpdatePriority( + higherEventPriority(previousPriority, ContinuousEventPriority) + ); + var prevTransition = ReactCurrentBatchConfig$2.transition; + ReactCurrentBatchConfig$2.transition = null; + setPending(true); + var currentTransition = (ReactCurrentBatchConfig$2.transition = {}); - if (instance.contextType) { - error( - "contextType was defined as an instance property on %s. Use a static " + - "property to define contextType instead.", - name - ); - } + { + ReactCurrentBatchConfig$2.transition._updatedFibers = new Set(); + } + + try { + setPending(false); + callback(); + } finally { + setCurrentUpdatePriority(previousPriority); + ReactCurrentBatchConfig$2.transition = prevTransition; { - if (instance.contextTypes) { - error( - "contextTypes was defined as an instance property on %s. Use a static " + - "property to define contextTypes instead.", - name - ); - } + if (prevTransition === null && currentTransition._updatedFibers) { + var updatedFibersCount = currentTransition._updatedFibers.size; - if ( - ctor.contextType && - ctor.contextTypes && - !didWarnAboutContextTypeAndContextTypes.has(ctor) - ) { - didWarnAboutContextTypeAndContextTypes.add(ctor); + currentTransition._updatedFibers.clear(); - error( - "%s declares both contextTypes and contextType static properties. " + - "The legacy contextTypes property will be ignored.", - name - ); + if (updatedFibersCount > 10) { + warn( + "Detected a large number of updates inside startTransition. " + + "If this is due to a subscription please re-write it to use React provided hooks. " + + "Otherwise concurrent mode guarantees are off the table." + ); + } } } + } +} - if (typeof instance.componentShouldUpdate === "function") { - error( - "%s has a method called " + - "componentShouldUpdate(). Did you mean shouldComponentUpdate()? " + - "The name is phrased as a question because the function is " + - "expected to return a value.", - name - ); - } +function mountTransition() { + var _mountState = mountState(false), + isPending = _mountState[0], + setPending = _mountState[1]; // The `start` method never changes. - if ( - ctor.prototype && - ctor.prototype.isPureReactComponent && - typeof instance.shouldComponentUpdate !== "undefined" - ) { - error( - "%s has a method called shouldComponentUpdate(). " + - "shouldComponentUpdate should not be used when extending React.PureComponent. " + - "Please extend React.Component if shouldComponentUpdate is used.", - getComponentNameFromType(ctor) || "A pure component" - ); - } + var start = startTransition.bind(null, setPending); + var hook = mountWorkInProgressHook(); + hook.memoizedState = start; + return [isPending, start]; +} - if (typeof instance.componentDidUnmount === "function") { - error( - "%s has a method called " + - "componentDidUnmount(). But there is no such lifecycle method. " + - "Did you mean componentWillUnmount()?", - name - ); - } - - if (typeof instance.componentDidReceiveProps === "function") { - error( - "%s has a method called " + - "componentDidReceiveProps(). But there is no such lifecycle method. " + - "If you meant to update the state in response to changing props, " + - "use componentWillReceiveProps(). If you meant to fetch data or " + - "run side-effects or mutations after React has updated the UI, use componentDidUpdate().", - name - ); - } +function updateTransition() { + var _updateState = updateState(), + isPending = _updateState[0]; - if (typeof instance.componentWillRecieveProps === "function") { - error( - "%s has a method called " + - "componentWillRecieveProps(). Did you mean componentWillReceiveProps()?", - name - ); - } + var hook = updateWorkInProgressHook(); + var start = hook.memoizedState; + return [isPending, start]; +} - if (typeof instance.UNSAFE_componentWillRecieveProps === "function") { - error( - "%s has a method called " + - "UNSAFE_componentWillRecieveProps(). Did you mean UNSAFE_componentWillReceiveProps()?", - name - ); - } +function rerenderTransition() { + var _rerenderState = rerenderState(), + isPending = _rerenderState[0]; - var hasMutatedProps = instance.props !== newProps; + var hook = updateWorkInProgressHook(); + var start = hook.memoizedState; + return [isPending, start]; +} - if (instance.props !== undefined && hasMutatedProps) { - error( - "%s(...): When calling super() in `%s`, make sure to pass " + - "up the same props that your component's constructor was passed.", - name, - name - ); - } +function mountId() { + var hook = mountWorkInProgressHook(); + var root = getWorkInProgressRoot(); // TODO: In Fizz, id generation is specific to each server config. Maybe we + // should do this in Fiber, too? Deferring this decision for now because + // there's no other place to store the prefix except for an internal field on + // the public createRoot object, which the fiber tree does not currently have + // a reference to. - if (instance.defaultProps) { - error( - "Setting defaultProps as an instance property on %s is not supported and will be ignored." + - " Instead, define defaultProps as a static property on %s.", - name, - name - ); - } + var identifierPrefix = root.identifierPrefix; + var id; - if ( - typeof instance.getSnapshotBeforeUpdate === "function" && - typeof instance.componentDidUpdate !== "function" && - !didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate.has(ctor) - ) { - didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate.add(ctor); + { + // Use a lowercase r prefix for client-generated ids. + var globalClientId = globalClientIdCounter++; + id = ":" + identifierPrefix + "r" + globalClientId.toString(32) + ":"; + } - error( - "%s: getSnapshotBeforeUpdate() should be used with componentDidUpdate(). " + - "This component defines getSnapshotBeforeUpdate() only.", - getComponentNameFromType(ctor) - ); - } + hook.memoizedState = id; + return id; +} - if (typeof instance.getDerivedStateFromProps === "function") { - error( - "%s: getDerivedStateFromProps() is defined as an instance method " + - "and will be ignored. Instead, declare it as a static method.", - name - ); - } +function updateId() { + var hook = updateWorkInProgressHook(); + var id = hook.memoizedState; + return id; +} - if (typeof instance.getDerivedStateFromError === "function") { +function dispatchReducerAction(fiber, queue, action) { + { + if (typeof arguments[3] === "function") { error( - "%s: getDerivedStateFromError() is defined as an instance method " + - "and will be ignored. Instead, declare it as a static method.", - name + "State updates from the useState() and useReducer() Hooks don't support the " + + "second callback argument. To execute a side effect after " + + "rendering, declare it in the component body with useEffect()." ); } + } - if (typeof ctor.getSnapshotBeforeUpdate === "function") { - error( - "%s: getSnapshotBeforeUpdate() is defined as a static method " + - "and will be ignored. Instead, declare it as an instance method.", - name - ); - } + var lane = requestUpdateLane(fiber); + var update = { + lane: lane, + action: action, + hasEagerState: false, + eagerState: null, + next: null + }; - var state = instance.state; + if (isRenderPhaseUpdate(fiber)) { + enqueueRenderPhaseUpdate(queue, update); + } else { + var root = enqueueConcurrentHookUpdate(fiber, queue, update, lane); - if (state && (typeof state !== "object" || isArray(state))) { - error("%s.state: must be set to an object or null", name); + if (root !== null) { + var eventTime = requestEventTime(); + scheduleUpdateOnFiber(root, fiber, lane, eventTime); + entangleTransitionUpdate(root, queue, lane); } + } - if ( - typeof instance.getChildContext === "function" && - typeof ctor.childContextTypes !== "object" - ) { + markUpdateInDevTools(fiber, lane); +} + +function dispatchSetState(fiber, queue, action) { + { + if (typeof arguments[3] === "function") { error( - "%s.getChildContext(): childContextTypes must be defined in order to " + - "use getChildContext().", - name + "State updates from the useState() and useReducer() Hooks don't support the " + + "second callback argument. To execute a side effect after " + + "rendering, declare it in the component body with useEffect()." ); } } -} -function adoptClassInstance(workInProgress, instance) { - instance.updater = classComponentUpdater; - workInProgress.stateNode = instance; // The instance needs access to the fiber so that it can schedule updates + var lane = requestUpdateLane(fiber); + var update = { + lane: lane, + action: action, + hasEagerState: false, + eagerState: null, + next: null + }; - set(instance, workInProgress); + if (isRenderPhaseUpdate(fiber)) { + enqueueRenderPhaseUpdate(queue, update); + } else { + var alternate = fiber.alternate; - { - instance._reactInternalInstance = fakeInternalInstance; - } -} + if ( + fiber.lanes === NoLanes && + (alternate === null || alternate.lanes === NoLanes) + ) { + // The queue is currently empty, which means we can eagerly compute the + // next state before entering the render phase. If the new state is the + // same as the current state, we may be able to bail out entirely. + var lastRenderedReducer = queue.lastRenderedReducer; -function constructClassInstance(workInProgress, ctor, props) { - var isLegacyContextConsumer = false; - var unmaskedContext = emptyContextObject; - var context = emptyContextObject; - var contextType = ctor.contextType; + if (lastRenderedReducer !== null) { + var prevDispatcher; - { - if ("contextType" in ctor) { - var isValid = // Allow null for conditional declaration - contextType === null || - (contextType !== undefined && - contextType.$$typeof === REACT_CONTEXT_TYPE && - contextType._context === undefined); // Not a + { + prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnUpdateInDEV; + } - if (!isValid && !didWarnAboutInvalidateContextType.has(ctor)) { - didWarnAboutInvalidateContextType.add(ctor); - var addendum = ""; + try { + var currentState = queue.lastRenderedState; + var eagerState = lastRenderedReducer(currentState, action); // Stash the eagerly computed state, and the reducer used to compute + // it, on the update object. If the reducer hasn't changed by the + // time we enter the render phase, then the eager state can be used + // without calling the reducer again. - if (contextType === undefined) { - addendum = - " However, it is set to undefined. " + - "This can be caused by a typo or by mixing up named and default imports. " + - "This can also happen due to a circular dependency, so " + - "try moving the createContext() call to a separate file."; - } else if (typeof contextType !== "object") { - addendum = " However, it is set to a " + typeof contextType + "."; - } else if (contextType.$$typeof === REACT_PROVIDER_TYPE) { - addendum = " Did you accidentally pass the Context.Provider instead?"; - } else if (contextType._context !== undefined) { - // - addendum = " Did you accidentally pass the Context.Consumer instead?"; - } else { - addendum = - " However, it is set to an object with keys {" + - Object.keys(contextType).join(", ") + - "}."; - } + update.hasEagerState = true; + update.eagerState = eagerState; - error( - "%s defines an invalid contextType. " + - "contextType should point to the Context object returned by React.createContext().%s", - getComponentNameFromType(ctor) || "Component", - addendum - ); + if (objectIs(eagerState, currentState)) { + // Fast path. We can bail out without scheduling React to re-render. + // It's still possible that we'll need to rebase this update later, + // if the component re-renders for a different reason and by that + // time the reducer has changed. + // TODO: Do we still need to entangle transitions in this case? + enqueueConcurrentHookUpdateAndEagerlyBailout(fiber, queue, update); + return; + } + } catch (error) { + // Suppress the error. It will throw again in the render phase. + } finally { + { + ReactCurrentDispatcher$1.current = prevDispatcher; + } + } } } - } - if (typeof contextType === "object" && contextType !== null) { - context = readContext(contextType); - } else { - unmaskedContext = getUnmaskedContext(workInProgress, ctor, true); - var contextTypes = ctor.contextTypes; - isLegacyContextConsumer = - contextTypes !== null && contextTypes !== undefined; - context = isLegacyContextConsumer - ? getMaskedContext(workInProgress, unmaskedContext) - : emptyContextObject; - } - - var instance = new ctor(props, context); // Instantiate twice to help detect side-effects. - - { - if (workInProgress.mode & StrictLegacyMode) { - setIsStrictModeForDevtools(true); + var root = enqueueConcurrentHookUpdate(fiber, queue, update, lane); - try { - instance = new ctor(props, context); // eslint-disable-line no-new - } finally { - setIsStrictModeForDevtools(false); - } + if (root !== null) { + var eventTime = requestEventTime(); + scheduleUpdateOnFiber(root, fiber, lane, eventTime); + entangleTransitionUpdate(root, queue, lane); } } - var state = (workInProgress.memoizedState = - instance.state !== null && instance.state !== undefined - ? instance.state - : null); - adoptClassInstance(workInProgress, instance); - - { - if (typeof ctor.getDerivedStateFromProps === "function" && state === null) { - var componentName = getComponentNameFromType(ctor) || "Component"; - - if (!didWarnAboutUninitializedState.has(componentName)) { - didWarnAboutUninitializedState.add(componentName); - - error( - "`%s` uses `getDerivedStateFromProps` but its initial state is " + - "%s. This is not recommended. Instead, define the initial state by " + - "assigning an object to `this.state` in the constructor of `%s`. " + - "This ensures that `getDerivedStateFromProps` arguments have a consistent shape.", - componentName, - instance.state === null ? "null" : "undefined", - componentName - ); - } - } // If new component APIs are defined, "unsafe" lifecycles won't be called. - // Warn about these lifecycles if they are present. - // Don't warn about react-lifecycles-compat polyfilled methods though. - - if ( - typeof ctor.getDerivedStateFromProps === "function" || - typeof instance.getSnapshotBeforeUpdate === "function" - ) { - var foundWillMountName = null; - var foundWillReceivePropsName = null; - var foundWillUpdateName = null; + markUpdateInDevTools(fiber, lane); +} - if ( - typeof instance.componentWillMount === "function" && - instance.componentWillMount.__suppressDeprecationWarning !== true - ) { - foundWillMountName = "componentWillMount"; - } else if (typeof instance.UNSAFE_componentWillMount === "function") { - foundWillMountName = "UNSAFE_componentWillMount"; - } +function isRenderPhaseUpdate(fiber) { + var alternate = fiber.alternate; + return ( + fiber === currentlyRenderingFiber$1 || + (alternate !== null && alternate === currentlyRenderingFiber$1) + ); +} - if ( - typeof instance.componentWillReceiveProps === "function" && - instance.componentWillReceiveProps.__suppressDeprecationWarning !== true - ) { - foundWillReceivePropsName = "componentWillReceiveProps"; - } else if ( - typeof instance.UNSAFE_componentWillReceiveProps === "function" - ) { - foundWillReceivePropsName = "UNSAFE_componentWillReceiveProps"; - } +function enqueueRenderPhaseUpdate(queue, update) { + // This is a render phase update. Stash it in a lazily-created map of + // queue -> linked list of updates. After this render pass, we'll restart + // and apply the stashed updates on top of the work-in-progress hook. + didScheduleRenderPhaseUpdateDuringThisPass = didScheduleRenderPhaseUpdate = + true; + var pending = queue.pending; - if ( - typeof instance.componentWillUpdate === "function" && - instance.componentWillUpdate.__suppressDeprecationWarning !== true - ) { - foundWillUpdateName = "componentWillUpdate"; - } else if (typeof instance.UNSAFE_componentWillUpdate === "function") { - foundWillUpdateName = "UNSAFE_componentWillUpdate"; - } + if (pending === null) { + // This is the first update. Create a circular list. + update.next = update; + } else { + update.next = pending.next; + pending.next = update; + } - if ( - foundWillMountName !== null || - foundWillReceivePropsName !== null || - foundWillUpdateName !== null - ) { - var _componentName = getComponentNameFromType(ctor) || "Component"; + queue.pending = update; +} // TODO: Move to ReactFiberConcurrentUpdates? - var newApiName = - typeof ctor.getDerivedStateFromProps === "function" - ? "getDerivedStateFromProps()" - : "getSnapshotBeforeUpdate()"; +function entangleTransitionUpdate(root, queue, lane) { + if (isTransitionLane(lane)) { + var queueLanes = queue.lanes; // If any entangled lanes are no longer pending on the root, then they + // must have finished. We can remove them from the shared queue, which + // represents a superset of the actually pending lanes. In some cases we + // may entangle more than we need to, but that's OK. In fact it's worse if + // we *don't* entangle when we should. - if (!didWarnAboutLegacyLifecyclesAndDerivedState.has(_componentName)) { - didWarnAboutLegacyLifecyclesAndDerivedState.add(_componentName); + queueLanes = intersectLanes(queueLanes, root.pendingLanes); // Entangle the new transition lane with the other transition lanes. - error( - "Unsafe legacy lifecycles will not be called for components using new component APIs.\n\n" + - "%s uses %s but also contains the following legacy lifecycles:%s%s%s\n\n" + - "The above lifecycles should be removed. Learn more about this warning here:\n" + - "https://reactjs.org/link/unsafe-component-lifecycles", - _componentName, - newApiName, - foundWillMountName !== null ? "\n " + foundWillMountName : "", - foundWillReceivePropsName !== null - ? "\n " + foundWillReceivePropsName - : "", - foundWillUpdateName !== null ? "\n " + foundWillUpdateName : "" - ); - } - } - } - } // Cache unmasked context so we can avoid recreating masked context unless necessary. - // ReactFiberContext usually updates this cache but can't for newly-created instances. + var newQueueLanes = mergeLanes(queueLanes, lane); + queue.lanes = newQueueLanes; // Even if queue.lanes already include lane, we don't know for certain if + // the lane finished since the last time we entangled it. So we need to + // entangle it again, just to be sure. - if (isLegacyContextConsumer) { - cacheContext(workInProgress, unmaskedContext, context); + markRootEntangled(root, newQueueLanes); } - - return instance; } -function callComponentWillMount(workInProgress, instance) { - var oldState = instance.state; - - if (typeof instance.componentWillMount === "function") { - instance.componentWillMount(); - } - - if (typeof instance.UNSAFE_componentWillMount === "function") { - instance.UNSAFE_componentWillMount(); +function markUpdateInDevTools(fiber, lane, action) { + { + markStateUpdateScheduled(fiber, lane); } +} - if (oldState !== instance.state) { - { - error( - "%s.componentWillMount(): Assigning directly to this.state is " + - "deprecated (except inside a component's " + - "constructor). Use setState instead.", - getComponentNameFromFiber(workInProgress) || "Component" - ); - } +var ContextOnlyDispatcher = { + readContext: readContext, + useCallback: throwInvalidHookError, + useContext: throwInvalidHookError, + useEffect: throwInvalidHookError, + useImperativeHandle: throwInvalidHookError, + useInsertionEffect: throwInvalidHookError, + useLayoutEffect: throwInvalidHookError, + useMemo: throwInvalidHookError, + useReducer: throwInvalidHookError, + useRef: throwInvalidHookError, + useState: throwInvalidHookError, + useDebugValue: throwInvalidHookError, + useDeferredValue: throwInvalidHookError, + useTransition: throwInvalidHookError, + useMutableSource: throwInvalidHookError, + useSyncExternalStore: throwInvalidHookError, + useId: throwInvalidHookError +}; - classComponentUpdater.enqueueReplaceState(instance, instance.state, null); - } +{ + ContextOnlyDispatcher.use = throwInvalidHookError; } -function callComponentWillReceiveProps( - workInProgress, - instance, - newProps, - nextContext -) { - var oldState = instance.state; - - if (typeof instance.componentWillReceiveProps === "function") { - instance.componentWillReceiveProps(newProps, nextContext); - } +{ + ContextOnlyDispatcher.useMemoCache = throwInvalidHookError; +} - if (typeof instance.UNSAFE_componentWillReceiveProps === "function") { - instance.UNSAFE_componentWillReceiveProps(newProps, nextContext); - } +var HooksDispatcherOnMountInDEV = null; +var HooksDispatcherOnMountWithHookTypesInDEV = null; +var HooksDispatcherOnUpdateInDEV = null; +var HooksDispatcherOnRerenderInDEV = null; +var InvalidNestedHooksDispatcherOnMountInDEV = null; +var InvalidNestedHooksDispatcherOnUpdateInDEV = null; +var InvalidNestedHooksDispatcherOnRerenderInDEV = null; - if (instance.state !== oldState) { - { - var componentName = - getComponentNameFromFiber(workInProgress) || "Component"; +{ + var warnInvalidContextAccess = function () { + error( + "Context can only be read while React is rendering. " + + "In classes, you can read it in the render method or getDerivedStateFromProps. " + + "In function components, you can read it directly in the function body, but not " + + "inside Hooks like useReducer() or useMemo()." + ); + }; - if (!didWarnAboutStateAssignmentForComponent.has(componentName)) { - didWarnAboutStateAssignmentForComponent.add(componentName); + var warnInvalidHookAccess = function () { + error( + "Do not call Hooks inside useEffect(...), useMemo(...), or other built-in Hooks. " + + "You can only call Hooks at the top level of your React function. " + + "For more information, see " + + "https://reactjs.org/link/rules-of-hooks" + ); + }; - error( - "%s.componentWillReceiveProps(): Assigning directly to " + - "this.state is deprecated (except inside a component's " + - "constructor). Use setState instead.", - componentName - ); + HooksDispatcherOnMountInDEV = { + readContext: function (context) { + return readContext(context); + }, + useCallback: function (callback, deps) { + currentHookNameInDev = "useCallback"; + mountHookTypesDev(); + checkDepsAreArrayDev(deps); + return mountCallback(callback, deps); + }, + useContext: function (context) { + currentHookNameInDev = "useContext"; + mountHookTypesDev(); + return readContext(context); + }, + useEffect: function (create, deps) { + currentHookNameInDev = "useEffect"; + mountHookTypesDev(); + checkDepsAreArrayDev(deps); + return mountEffect(create, deps); + }, + useImperativeHandle: function (ref, create, deps) { + currentHookNameInDev = "useImperativeHandle"; + mountHookTypesDev(); + checkDepsAreArrayDev(deps); + return mountImperativeHandle(ref, create, deps); + }, + useInsertionEffect: function (create, deps) { + currentHookNameInDev = "useInsertionEffect"; + mountHookTypesDev(); + checkDepsAreArrayDev(deps); + return mountInsertionEffect(create, deps); + }, + useLayoutEffect: function (create, deps) { + currentHookNameInDev = "useLayoutEffect"; + mountHookTypesDev(); + checkDepsAreArrayDev(deps); + return mountLayoutEffect(create, deps); + }, + useMemo: function (create, deps) { + currentHookNameInDev = "useMemo"; + mountHookTypesDev(); + checkDepsAreArrayDev(deps); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnMountInDEV; + + try { + return mountMemo(create, deps); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; } - } + }, + useReducer: function (reducer, initialArg, init) { + currentHookNameInDev = "useReducer"; + mountHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnMountInDEV; - classComponentUpdater.enqueueReplaceState(instance, instance.state, null); - } -} // Invokes the mount life-cycles on a previously never rendered instance. + try { + return mountReducer(reducer, initialArg, init); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; + } + }, + useRef: function (initialValue) { + currentHookNameInDev = "useRef"; + mountHookTypesDev(); + return mountRef(initialValue); + }, + useState: function (initialState) { + currentHookNameInDev = "useState"; + mountHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnMountInDEV; + + try { + return mountState(initialState); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; + } + }, + useDebugValue: function (value, formatterFn) { + currentHookNameInDev = "useDebugValue"; + mountHookTypesDev(); + return mountDebugValue(); + }, + useDeferredValue: function (value) { + currentHookNameInDev = "useDeferredValue"; + mountHookTypesDev(); + return mountDeferredValue(value); + }, + useTransition: function () { + currentHookNameInDev = "useTransition"; + mountHookTypesDev(); + return mountTransition(); + }, + useMutableSource: function (source, getSnapshot, subscribe) { + currentHookNameInDev = "useMutableSource"; + mountHookTypesDev(); + return mountMutableSource(source, getSnapshot, subscribe); + }, + useSyncExternalStore: function (subscribe, getSnapshot, getServerSnapshot) { + currentHookNameInDev = "useSyncExternalStore"; + mountHookTypesDev(); + return mountSyncExternalStore(subscribe, getSnapshot); + }, + useId: function () { + currentHookNameInDev = "useId"; + mountHookTypesDev(); + return mountId(); + } + }; -function mountClassInstance(workInProgress, ctor, newProps, renderLanes) { { - checkClassInstance(workInProgress, ctor, newProps); + HooksDispatcherOnMountInDEV.use = use; } - var instance = workInProgress.stateNode; - instance.props = newProps; - instance.state = workInProgress.memoizedState; - instance.refs = {}; - initializeUpdateQueue(workInProgress); - var contextType = ctor.contextType; - - if (typeof contextType === "object" && contextType !== null) { - instance.context = readContext(contextType); - } else { - var unmaskedContext = getUnmaskedContext(workInProgress, ctor, true); - instance.context = getMaskedContext(workInProgress, unmaskedContext); + { + HooksDispatcherOnMountInDEV.useMemoCache = useMemoCache; } - { - if (instance.state === newProps) { - var componentName = getComponentNameFromType(ctor) || "Component"; + HooksDispatcherOnMountWithHookTypesInDEV = { + readContext: function (context) { + return readContext(context); + }, + useCallback: function (callback, deps) { + currentHookNameInDev = "useCallback"; + updateHookTypesDev(); + return mountCallback(callback, deps); + }, + useContext: function (context) { + currentHookNameInDev = "useContext"; + updateHookTypesDev(); + return readContext(context); + }, + useEffect: function (create, deps) { + currentHookNameInDev = "useEffect"; + updateHookTypesDev(); + return mountEffect(create, deps); + }, + useImperativeHandle: function (ref, create, deps) { + currentHookNameInDev = "useImperativeHandle"; + updateHookTypesDev(); + return mountImperativeHandle(ref, create, deps); + }, + useInsertionEffect: function (create, deps) { + currentHookNameInDev = "useInsertionEffect"; + updateHookTypesDev(); + return mountInsertionEffect(create, deps); + }, + useLayoutEffect: function (create, deps) { + currentHookNameInDev = "useLayoutEffect"; + updateHookTypesDev(); + return mountLayoutEffect(create, deps); + }, + useMemo: function (create, deps) { + currentHookNameInDev = "useMemo"; + updateHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnMountInDEV; - if (!didWarnAboutDirectlyAssigningPropsToState.has(componentName)) { - didWarnAboutDirectlyAssigningPropsToState.add(componentName); + try { + return mountMemo(create, deps); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; + } + }, + useReducer: function (reducer, initialArg, init) { + currentHookNameInDev = "useReducer"; + updateHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnMountInDEV; - error( - "%s: It is not recommended to assign props directly to state " + - "because updates to props won't be reflected in state. " + - "In most cases, it is better to use props directly.", - componentName - ); + try { + return mountReducer(reducer, initialArg, init); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; } - } + }, + useRef: function (initialValue) { + currentHookNameInDev = "useRef"; + updateHookTypesDev(); + return mountRef(initialValue); + }, + useState: function (initialState) { + currentHookNameInDev = "useState"; + updateHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnMountInDEV; - if (workInProgress.mode & StrictLegacyMode) { - ReactStrictModeWarnings.recordLegacyContextWarning( - workInProgress, - instance - ); + try { + return mountState(initialState); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; + } + }, + useDebugValue: function (value, formatterFn) { + currentHookNameInDev = "useDebugValue"; + updateHookTypesDev(); + return mountDebugValue(); + }, + useDeferredValue: function (value) { + currentHookNameInDev = "useDeferredValue"; + updateHookTypesDev(); + return mountDeferredValue(value); + }, + useTransition: function () { + currentHookNameInDev = "useTransition"; + updateHookTypesDev(); + return mountTransition(); + }, + useMutableSource: function (source, getSnapshot, subscribe) { + currentHookNameInDev = "useMutableSource"; + updateHookTypesDev(); + return mountMutableSource(source, getSnapshot, subscribe); + }, + useSyncExternalStore: function (subscribe, getSnapshot, getServerSnapshot) { + currentHookNameInDev = "useSyncExternalStore"; + updateHookTypesDev(); + return mountSyncExternalStore(subscribe, getSnapshot); + }, + useId: function () { + currentHookNameInDev = "useId"; + updateHookTypesDev(); + return mountId(); } + }; - ReactStrictModeWarnings.recordUnsafeLifecycleWarnings( - workInProgress, - instance - ); - } - - instance.state = workInProgress.memoizedState; - var getDerivedStateFromProps = ctor.getDerivedStateFromProps; - - if (typeof getDerivedStateFromProps === "function") { - applyDerivedStateFromProps( - workInProgress, - ctor, - getDerivedStateFromProps, - newProps - ); - instance.state = workInProgress.memoizedState; - } // In order to support react-lifecycles-compat polyfilled components, - // Unsafe lifecycles should not be invoked for components using the new APIs. - - if ( - typeof ctor.getDerivedStateFromProps !== "function" && - typeof instance.getSnapshotBeforeUpdate !== "function" && - (typeof instance.UNSAFE_componentWillMount === "function" || - typeof instance.componentWillMount === "function") - ) { - callComponentWillMount(workInProgress, instance); // If we had additional state updates during this life-cycle, let's - // process them now. - - processUpdateQueue(workInProgress, newProps, instance, renderLanes); - instance.state = workInProgress.memoizedState; - } - - if (typeof instance.componentDidMount === "function") { - var fiberFlags = Update | LayoutStatic; - - if ((workInProgress.mode & StrictEffectsMode) !== NoMode) { - fiberFlags |= MountLayoutDev; - } - - workInProgress.flags |= fiberFlags; - } -} - -function resumeMountClassInstance(workInProgress, ctor, newProps, renderLanes) { - var instance = workInProgress.stateNode; - var oldProps = workInProgress.memoizedProps; - instance.props = oldProps; - var oldContext = instance.context; - var contextType = ctor.contextType; - var nextContext = emptyContextObject; - - if (typeof contextType === "object" && contextType !== null) { - nextContext = readContext(contextType); - } else { - var nextLegacyUnmaskedContext = getUnmaskedContext( - workInProgress, - ctor, - true - ); - nextContext = getMaskedContext(workInProgress, nextLegacyUnmaskedContext); + { + HooksDispatcherOnMountWithHookTypesInDEV.use = use; } - var getDerivedStateFromProps = ctor.getDerivedStateFromProps; - var hasNewLifecycles = - typeof getDerivedStateFromProps === "function" || - typeof instance.getSnapshotBeforeUpdate === "function"; // Note: During these life-cycles, instance.props/instance.state are what - // ever the previously attempted to render - not the "current". However, - // during componentDidUpdate we pass the "current" props. - // In order to support react-lifecycles-compat polyfilled components, - // Unsafe lifecycles should not be invoked for components using the new APIs. - - if ( - !hasNewLifecycles && - (typeof instance.UNSAFE_componentWillReceiveProps === "function" || - typeof instance.componentWillReceiveProps === "function") - ) { - if (oldProps !== newProps || oldContext !== nextContext) { - callComponentWillReceiveProps( - workInProgress, - instance, - newProps, - nextContext - ); - } + { + HooksDispatcherOnMountWithHookTypesInDEV.useMemoCache = useMemoCache; } - resetHasForceUpdateBeforeProcessing(); - var oldState = workInProgress.memoizedState; - var newState = (instance.state = oldState); - processUpdateQueue(workInProgress, newProps, instance, renderLanes); - newState = workInProgress.memoizedState; + HooksDispatcherOnUpdateInDEV = { + readContext: function (context) { + return readContext(context); + }, + useCallback: function (callback, deps) { + currentHookNameInDev = "useCallback"; + updateHookTypesDev(); + return updateCallback(callback, deps); + }, + useContext: function (context) { + currentHookNameInDev = "useContext"; + updateHookTypesDev(); + return readContext(context); + }, + useEffect: function (create, deps) { + currentHookNameInDev = "useEffect"; + updateHookTypesDev(); + return updateEffect(create, deps); + }, + useImperativeHandle: function (ref, create, deps) { + currentHookNameInDev = "useImperativeHandle"; + updateHookTypesDev(); + return updateImperativeHandle(ref, create, deps); + }, + useInsertionEffect: function (create, deps) { + currentHookNameInDev = "useInsertionEffect"; + updateHookTypesDev(); + return updateInsertionEffect(create, deps); + }, + useLayoutEffect: function (create, deps) { + currentHookNameInDev = "useLayoutEffect"; + updateHookTypesDev(); + return updateLayoutEffect(create, deps); + }, + useMemo: function (create, deps) { + currentHookNameInDev = "useMemo"; + updateHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnUpdateInDEV; - if ( - oldProps === newProps && - oldState === newState && - !hasContextChanged() && - !checkHasForceUpdateAfterProcessing() - ) { - // If an update was already in progress, we should schedule an Update - // effect even though we're bailing out, so that cWU/cDU are called. - if (typeof instance.componentDidMount === "function") { - var fiberFlags = Update | LayoutStatic; + try { + return updateMemo(create, deps); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; + } + }, + useReducer: function (reducer, initialArg, init) { + currentHookNameInDev = "useReducer"; + updateHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnUpdateInDEV; - if ((workInProgress.mode & StrictEffectsMode) !== NoMode) { - fiberFlags |= MountLayoutDev; + try { + return updateReducer(reducer, initialArg, init); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; } + }, + useRef: function (initialValue) { + currentHookNameInDev = "useRef"; + updateHookTypesDev(); + return updateRef(); + }, + useState: function (initialState) { + currentHookNameInDev = "useState"; + updateHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnUpdateInDEV; - workInProgress.flags |= fiberFlags; + try { + return updateState(initialState); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; + } + }, + useDebugValue: function (value, formatterFn) { + currentHookNameInDev = "useDebugValue"; + updateHookTypesDev(); + return updateDebugValue(); + }, + useDeferredValue: function (value) { + currentHookNameInDev = "useDeferredValue"; + updateHookTypesDev(); + return updateDeferredValue(value); + }, + useTransition: function () { + currentHookNameInDev = "useTransition"; + updateHookTypesDev(); + return updateTransition(); + }, + useMutableSource: function (source, getSnapshot, subscribe) { + currentHookNameInDev = "useMutableSource"; + updateHookTypesDev(); + return updateMutableSource(source, getSnapshot, subscribe); + }, + useSyncExternalStore: function (subscribe, getSnapshot, getServerSnapshot) { + currentHookNameInDev = "useSyncExternalStore"; + updateHookTypesDev(); + return updateSyncExternalStore(subscribe, getSnapshot); + }, + useId: function () { + currentHookNameInDev = "useId"; + updateHookTypesDev(); + return updateId(); } + }; - return false; + { + HooksDispatcherOnUpdateInDEV.use = use; } - if (typeof getDerivedStateFromProps === "function") { - applyDerivedStateFromProps( - workInProgress, - ctor, - getDerivedStateFromProps, - newProps - ); - newState = workInProgress.memoizedState; + { + HooksDispatcherOnUpdateInDEV.useMemoCache = useMemoCache; } - var shouldUpdate = - checkHasForceUpdateAfterProcessing() || - checkShouldComponentUpdate( - workInProgress, - ctor, - oldProps, - newProps, - oldState, - newState, - nextContext - ); - - if (shouldUpdate) { - // In order to support react-lifecycles-compat polyfilled components, - // Unsafe lifecycles should not be invoked for components using the new APIs. - if ( - !hasNewLifecycles && - (typeof instance.UNSAFE_componentWillMount === "function" || - typeof instance.componentWillMount === "function") - ) { - if (typeof instance.componentWillMount === "function") { - instance.componentWillMount(); - } - - if (typeof instance.UNSAFE_componentWillMount === "function") { - instance.UNSAFE_componentWillMount(); - } - } - - if (typeof instance.componentDidMount === "function") { - var _fiberFlags = Update | LayoutStatic; - - if ((workInProgress.mode & StrictEffectsMode) !== NoMode) { - _fiberFlags |= MountLayoutDev; - } - - workInProgress.flags |= _fiberFlags; - } - } else { - // If an update was already in progress, we should schedule an Update - // effect even though we're bailing out, so that cWU/cDU are called. - if (typeof instance.componentDidMount === "function") { - var _fiberFlags2 = Update | LayoutStatic; + HooksDispatcherOnRerenderInDEV = { + readContext: function (context) { + return readContext(context); + }, + useCallback: function (callback, deps) { + currentHookNameInDev = "useCallback"; + updateHookTypesDev(); + return updateCallback(callback, deps); + }, + useContext: function (context) { + currentHookNameInDev = "useContext"; + updateHookTypesDev(); + return readContext(context); + }, + useEffect: function (create, deps) { + currentHookNameInDev = "useEffect"; + updateHookTypesDev(); + return updateEffect(create, deps); + }, + useImperativeHandle: function (ref, create, deps) { + currentHookNameInDev = "useImperativeHandle"; + updateHookTypesDev(); + return updateImperativeHandle(ref, create, deps); + }, + useInsertionEffect: function (create, deps) { + currentHookNameInDev = "useInsertionEffect"; + updateHookTypesDev(); + return updateInsertionEffect(create, deps); + }, + useLayoutEffect: function (create, deps) { + currentHookNameInDev = "useLayoutEffect"; + updateHookTypesDev(); + return updateLayoutEffect(create, deps); + }, + useMemo: function (create, deps) { + currentHookNameInDev = "useMemo"; + updateHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnRerenderInDEV; - if ((workInProgress.mode & StrictEffectsMode) !== NoMode) { - _fiberFlags2 |= MountLayoutDev; + try { + return updateMemo(create, deps); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; } + }, + useReducer: function (reducer, initialArg, init) { + currentHookNameInDev = "useReducer"; + updateHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnRerenderInDEV; - workInProgress.flags |= _fiberFlags2; - } // If shouldComponentUpdate returned false, we should still update the - // memoized state to indicate that this work can be reused. - - workInProgress.memoizedProps = newProps; - workInProgress.memoizedState = newState; - } // Update the existing instance's state, props, and context pointers even - // if shouldComponentUpdate returns false. - - instance.props = newProps; - instance.state = newState; - instance.context = nextContext; - return shouldUpdate; -} // Invokes the update life-cycles and returns false if it shouldn't rerender. - -function updateClassInstance( - current, - workInProgress, - ctor, - newProps, - renderLanes -) { - var instance = workInProgress.stateNode; - cloneUpdateQueue(current, workInProgress); - var unresolvedOldProps = workInProgress.memoizedProps; - var oldProps = - workInProgress.type === workInProgress.elementType - ? unresolvedOldProps - : resolveDefaultProps(workInProgress.type, unresolvedOldProps); - instance.props = oldProps; - var unresolvedNewProps = workInProgress.pendingProps; - var oldContext = instance.context; - var contextType = ctor.contextType; - var nextContext = emptyContextObject; - - if (typeof contextType === "object" && contextType !== null) { - nextContext = readContext(contextType); - } else { - var nextUnmaskedContext = getUnmaskedContext(workInProgress, ctor, true); - nextContext = getMaskedContext(workInProgress, nextUnmaskedContext); - } - - var getDerivedStateFromProps = ctor.getDerivedStateFromProps; - var hasNewLifecycles = - typeof getDerivedStateFromProps === "function" || - typeof instance.getSnapshotBeforeUpdate === "function"; // Note: During these life-cycles, instance.props/instance.state are what - // ever the previously attempted to render - not the "current". However, - // during componentDidUpdate we pass the "current" props. - // In order to support react-lifecycles-compat polyfilled components, - // Unsafe lifecycles should not be invoked for components using the new APIs. - - if ( - !hasNewLifecycles && - (typeof instance.UNSAFE_componentWillReceiveProps === "function" || - typeof instance.componentWillReceiveProps === "function") - ) { - if ( - unresolvedOldProps !== unresolvedNewProps || - oldContext !== nextContext - ) { - callComponentWillReceiveProps( - workInProgress, - instance, - newProps, - nextContext - ); - } - } - - resetHasForceUpdateBeforeProcessing(); - var oldState = workInProgress.memoizedState; - var newState = (instance.state = oldState); - processUpdateQueue(workInProgress, newProps, instance, renderLanes); - newState = workInProgress.memoizedState; - - if ( - unresolvedOldProps === unresolvedNewProps && - oldState === newState && - !hasContextChanged() && - !checkHasForceUpdateAfterProcessing() && - !enableLazyContextPropagation - ) { - // If an update was already in progress, we should schedule an Update - // effect even though we're bailing out, so that cWU/cDU are called. - if (typeof instance.componentDidUpdate === "function") { - if ( - unresolvedOldProps !== current.memoizedProps || - oldState !== current.memoizedState - ) { - workInProgress.flags |= Update; + try { + return rerenderReducer(reducer, initialArg, init); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; } - } + }, + useRef: function (initialValue) { + currentHookNameInDev = "useRef"; + updateHookTypesDev(); + return updateRef(); + }, + useState: function (initialState) { + currentHookNameInDev = "useState"; + updateHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnRerenderInDEV; - if (typeof instance.getSnapshotBeforeUpdate === "function") { - if ( - unresolvedOldProps !== current.memoizedProps || - oldState !== current.memoizedState - ) { - workInProgress.flags |= Snapshot; + try { + return rerenderState(initialState); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; } + }, + useDebugValue: function (value, formatterFn) { + currentHookNameInDev = "useDebugValue"; + updateHookTypesDev(); + return updateDebugValue(); + }, + useDeferredValue: function (value) { + currentHookNameInDev = "useDeferredValue"; + updateHookTypesDev(); + return rerenderDeferredValue(value); + }, + useTransition: function () { + currentHookNameInDev = "useTransition"; + updateHookTypesDev(); + return rerenderTransition(); + }, + useMutableSource: function (source, getSnapshot, subscribe) { + currentHookNameInDev = "useMutableSource"; + updateHookTypesDev(); + return updateMutableSource(source, getSnapshot, subscribe); + }, + useSyncExternalStore: function (subscribe, getSnapshot, getServerSnapshot) { + currentHookNameInDev = "useSyncExternalStore"; + updateHookTypesDev(); + return updateSyncExternalStore(subscribe, getSnapshot); + }, + useId: function () { + currentHookNameInDev = "useId"; + updateHookTypesDev(); + return updateId(); } + }; - return false; + { + HooksDispatcherOnRerenderInDEV.use = use; } - if (typeof getDerivedStateFromProps === "function") { - applyDerivedStateFromProps( - workInProgress, - ctor, - getDerivedStateFromProps, - newProps - ); - newState = workInProgress.memoizedState; + { + HooksDispatcherOnRerenderInDEV.useMemoCache = useMemoCache; } - var shouldUpdate = - checkHasForceUpdateAfterProcessing() || - checkShouldComponentUpdate( - workInProgress, - ctor, - oldProps, - newProps, - oldState, - newState, - nextContext - ) || // TODO: In some cases, we'll end up checking if context has changed twice, - // both before and after `shouldComponentUpdate` has been called. Not ideal, - // but I'm loath to refactor this function. This only happens for memoized - // components so it's not that common. - enableLazyContextPropagation; - - if (shouldUpdate) { - // In order to support react-lifecycles-compat polyfilled components, - // Unsafe lifecycles should not be invoked for components using the new APIs. - if ( - !hasNewLifecycles && - (typeof instance.UNSAFE_componentWillUpdate === "function" || - typeof instance.componentWillUpdate === "function") - ) { - if (typeof instance.componentWillUpdate === "function") { - instance.componentWillUpdate(newProps, newState, nextContext); - } - - if (typeof instance.UNSAFE_componentWillUpdate === "function") { - instance.UNSAFE_componentWillUpdate(newProps, newState, nextContext); - } - } - - if (typeof instance.componentDidUpdate === "function") { - workInProgress.flags |= Update; - } + InvalidNestedHooksDispatcherOnMountInDEV = { + readContext: function (context) { + warnInvalidContextAccess(); + return readContext(context); + }, + useCallback: function (callback, deps) { + currentHookNameInDev = "useCallback"; + warnInvalidHookAccess(); + mountHookTypesDev(); + return mountCallback(callback, deps); + }, + useContext: function (context) { + currentHookNameInDev = "useContext"; + warnInvalidHookAccess(); + mountHookTypesDev(); + return readContext(context); + }, + useEffect: function (create, deps) { + currentHookNameInDev = "useEffect"; + warnInvalidHookAccess(); + mountHookTypesDev(); + return mountEffect(create, deps); + }, + useImperativeHandle: function (ref, create, deps) { + currentHookNameInDev = "useImperativeHandle"; + warnInvalidHookAccess(); + mountHookTypesDev(); + return mountImperativeHandle(ref, create, deps); + }, + useInsertionEffect: function (create, deps) { + currentHookNameInDev = "useInsertionEffect"; + warnInvalidHookAccess(); + mountHookTypesDev(); + return mountInsertionEffect(create, deps); + }, + useLayoutEffect: function (create, deps) { + currentHookNameInDev = "useLayoutEffect"; + warnInvalidHookAccess(); + mountHookTypesDev(); + return mountLayoutEffect(create, deps); + }, + useMemo: function (create, deps) { + currentHookNameInDev = "useMemo"; + warnInvalidHookAccess(); + mountHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnMountInDEV; - if (typeof instance.getSnapshotBeforeUpdate === "function") { - workInProgress.flags |= Snapshot; - } - } else { - // If an update was already in progress, we should schedule an Update - // effect even though we're bailing out, so that cWU/cDU are called. - if (typeof instance.componentDidUpdate === "function") { - if ( - unresolvedOldProps !== current.memoizedProps || - oldState !== current.memoizedState - ) { - workInProgress.flags |= Update; + try { + return mountMemo(create, deps); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; } - } + }, + useReducer: function (reducer, initialArg, init) { + currentHookNameInDev = "useReducer"; + warnInvalidHookAccess(); + mountHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnMountInDEV; - if (typeof instance.getSnapshotBeforeUpdate === "function") { - if ( - unresolvedOldProps !== current.memoizedProps || - oldState !== current.memoizedState - ) { - workInProgress.flags |= Snapshot; + try { + return mountReducer(reducer, initialArg, init); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; } - } // If shouldComponentUpdate returned false, we should still update the - // memoized props/state to indicate that this work can be reused. - - workInProgress.memoizedProps = newProps; - workInProgress.memoizedState = newState; - } // Update the existing instance's state, props, and context pointers even - // if shouldComponentUpdate returns false. - - instance.props = newProps; - instance.state = newState; - instance.context = nextContext; - return shouldUpdate; -} - -function createCapturedValueAtFiber(value, source) { - // If the value is an error, call this function immediately after it is thrown - // so the stack is accurate. - return { - value: value, - source: source, - stack: getStackByFiberInDevAndProd(source), - digest: null - }; -} -function createCapturedValue(value, digest, stack) { - return { - value: value, - source: null, - stack: stack != null ? stack : null, - digest: digest != null ? digest : null - }; -} - -if ( - typeof ReactNativePrivateInterface.ReactFiberErrorDialog.showErrorDialog !== - "function" -) { - throw new Error( - "Expected ReactFiberErrorDialog.showErrorDialog to be a function." - ); -} - -function showErrorDialog(boundary, errorInfo) { - var capturedError = { - componentStack: errorInfo.stack !== null ? errorInfo.stack : "", - error: errorInfo.value, - errorBoundary: - boundary !== null && boundary.tag === ClassComponent - ? boundary.stateNode - : null - }; - return ReactNativePrivateInterface.ReactFiberErrorDialog.showErrorDialog( - capturedError - ); -} - -function logCapturedError(boundary, errorInfo) { - try { - var logError = showErrorDialog(boundary, errorInfo); // Allow injected showErrorDialog() to prevent default console.error logging. - // This enables renderers like ReactNative to better manage redbox behavior. + }, + useRef: function (initialValue) { + currentHookNameInDev = "useRef"; + warnInvalidHookAccess(); + mountHookTypesDev(); + return mountRef(initialValue); + }, + useState: function (initialState) { + currentHookNameInDev = "useState"; + warnInvalidHookAccess(); + mountHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnMountInDEV; - if (logError === false) { - return; + try { + return mountState(initialState); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; + } + }, + useDebugValue: function (value, formatterFn) { + currentHookNameInDev = "useDebugValue"; + warnInvalidHookAccess(); + mountHookTypesDev(); + return mountDebugValue(); + }, + useDeferredValue: function (value) { + currentHookNameInDev = "useDeferredValue"; + warnInvalidHookAccess(); + mountHookTypesDev(); + return mountDeferredValue(value); + }, + useTransition: function () { + currentHookNameInDev = "useTransition"; + warnInvalidHookAccess(); + mountHookTypesDev(); + return mountTransition(); + }, + useMutableSource: function (source, getSnapshot, subscribe) { + currentHookNameInDev = "useMutableSource"; + warnInvalidHookAccess(); + mountHookTypesDev(); + return mountMutableSource(source, getSnapshot, subscribe); + }, + useSyncExternalStore: function (subscribe, getSnapshot, getServerSnapshot) { + currentHookNameInDev = "useSyncExternalStore"; + warnInvalidHookAccess(); + mountHookTypesDev(); + return mountSyncExternalStore(subscribe, getSnapshot); + }, + useId: function () { + currentHookNameInDev = "useId"; + warnInvalidHookAccess(); + mountHookTypesDev(); + return mountId(); } + }; - var error = errorInfo.value; + { + InvalidNestedHooksDispatcherOnMountInDEV.use = function (usable) { + warnInvalidHookAccess(); + return use(usable); + }; + } - if (true) { - var source = errorInfo.source; - var stack = errorInfo.stack; - var componentStack = stack !== null ? stack : ""; // Browsers support silencing uncaught errors by calling - // `preventDefault()` in window `error` handler. - // We record this information as an expando on the error. + { + InvalidNestedHooksDispatcherOnMountInDEV.useMemoCache = function (size) { + warnInvalidHookAccess(); + return useMemoCache(size); + }; + } - if (error != null && error._suppressLogging) { - if (boundary.tag === ClassComponent) { - // The error is recoverable and was silenced. - // Ignore it and don't print the stack addendum. - // This is handy for testing error boundaries without noise. - return; - } // The error is fatal. Since the silencing might have - // been accidental, we'll surface it anyway. - // However, the browser would have silenced the original error - // so we'll print it first, and then print the stack addendum. + InvalidNestedHooksDispatcherOnUpdateInDEV = { + readContext: function (context) { + warnInvalidContextAccess(); + return readContext(context); + }, + useCallback: function (callback, deps) { + currentHookNameInDev = "useCallback"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateCallback(callback, deps); + }, + useContext: function (context) { + currentHookNameInDev = "useContext"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return readContext(context); + }, + useEffect: function (create, deps) { + currentHookNameInDev = "useEffect"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateEffect(create, deps); + }, + useImperativeHandle: function (ref, create, deps) { + currentHookNameInDev = "useImperativeHandle"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateImperativeHandle(ref, create, deps); + }, + useInsertionEffect: function (create, deps) { + currentHookNameInDev = "useInsertionEffect"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateInsertionEffect(create, deps); + }, + useLayoutEffect: function (create, deps) { + currentHookNameInDev = "useLayoutEffect"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateLayoutEffect(create, deps); + }, + useMemo: function (create, deps) { + currentHookNameInDev = "useMemo"; + warnInvalidHookAccess(); + updateHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnUpdateInDEV; - console["error"](error); // Don't transform to our wrapper - // For a more detailed description of this block, see: - // https://github.com/facebook/react/pull/13384 + try { + return updateMemo(create, deps); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; } + }, + useReducer: function (reducer, initialArg, init) { + currentHookNameInDev = "useReducer"; + warnInvalidHookAccess(); + updateHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnUpdateInDEV; - var componentName = source ? getComponentNameFromFiber(source) : null; - var componentNameMessage = componentName - ? "The above error occurred in the <" + componentName + "> component:" - : "The above error occurred in one of your React components:"; - var errorBoundaryMessage; - - if (boundary.tag === HostRoot) { - errorBoundaryMessage = - "Consider adding an error boundary to your tree to customize error handling behavior.\n" + - "Visit https://reactjs.org/link/error-boundaries to learn more about error boundaries."; - } else { - var errorBoundaryName = - getComponentNameFromFiber(boundary) || "Anonymous"; - errorBoundaryMessage = - "React will try to recreate this component tree from scratch " + - ("using the error boundary you provided, " + errorBoundaryName + "."); + try { + return updateReducer(reducer, initialArg, init); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; } + }, + useRef: function (initialValue) { + currentHookNameInDev = "useRef"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateRef(); + }, + useState: function (initialState) { + currentHookNameInDev = "useState"; + warnInvalidHookAccess(); + updateHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnUpdateInDEV; - var combinedMessage = - componentNameMessage + - "\n" + - componentStack + - "\n\n" + - ("" + errorBoundaryMessage); // In development, we provide our own message with just the component stack. - // We don't include the original error message and JS stack because the browser - // has already printed it. Even if the application swallows the error, it is still - // displayed by the browser thanks to the DEV-only fake event trick in ReactErrorUtils. - - console["error"](combinedMessage); // Don't transform to our wrapper - } - } catch (e) { - // This method must not throw, or React internal state will get messed up. - // If console.error is overridden, or logCapturedError() shows a dialog that throws, - // we want to report this error outside of the normal stack as a last resort. - // https://github.com/facebook/react/issues/13188 - setTimeout(function () { - throw e; - }); - } -} - -function createRootErrorUpdate(fiber, errorInfo, lane) { - var update = createUpdate(lane); // Unmount the root by rendering null. - - update.tag = CaptureUpdate; // Caution: React DevTools currently depends on this property - // being called "element". - - update.payload = { - element: null + try { + return updateState(initialState); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; + } + }, + useDebugValue: function (value, formatterFn) { + currentHookNameInDev = "useDebugValue"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateDebugValue(); + }, + useDeferredValue: function (value) { + currentHookNameInDev = "useDeferredValue"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateDeferredValue(value); + }, + useTransition: function () { + currentHookNameInDev = "useTransition"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateTransition(); + }, + useMutableSource: function (source, getSnapshot, subscribe) { + currentHookNameInDev = "useMutableSource"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateMutableSource(source, getSnapshot, subscribe); + }, + useSyncExternalStore: function (subscribe, getSnapshot, getServerSnapshot) { + currentHookNameInDev = "useSyncExternalStore"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateSyncExternalStore(subscribe, getSnapshot); + }, + useId: function () { + currentHookNameInDev = "useId"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateId(); + } }; - var error = errorInfo.value; - update.callback = function () { - onUncaughtError(error); - logCapturedError(fiber, errorInfo); - }; + { + InvalidNestedHooksDispatcherOnUpdateInDEV.use = function (usable) { + warnInvalidHookAccess(); + return use(usable); + }; + } - return update; -} + { + InvalidNestedHooksDispatcherOnUpdateInDEV.useMemoCache = function (size) { + warnInvalidHookAccess(); + return useMemoCache(size); + }; + } -function createClassErrorUpdate(fiber, errorInfo, lane) { - var update = createUpdate(lane); - update.tag = CaptureUpdate; - var getDerivedStateFromError = fiber.type.getDerivedStateFromError; + InvalidNestedHooksDispatcherOnRerenderInDEV = { + readContext: function (context) { + warnInvalidContextAccess(); + return readContext(context); + }, + useCallback: function (callback, deps) { + currentHookNameInDev = "useCallback"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateCallback(callback, deps); + }, + useContext: function (context) { + currentHookNameInDev = "useContext"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return readContext(context); + }, + useEffect: function (create, deps) { + currentHookNameInDev = "useEffect"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateEffect(create, deps); + }, + useImperativeHandle: function (ref, create, deps) { + currentHookNameInDev = "useImperativeHandle"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateImperativeHandle(ref, create, deps); + }, + useInsertionEffect: function (create, deps) { + currentHookNameInDev = "useInsertionEffect"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateInsertionEffect(create, deps); + }, + useLayoutEffect: function (create, deps) { + currentHookNameInDev = "useLayoutEffect"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateLayoutEffect(create, deps); + }, + useMemo: function (create, deps) { + currentHookNameInDev = "useMemo"; + warnInvalidHookAccess(); + updateHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnUpdateInDEV; - if (typeof getDerivedStateFromError === "function") { - var error$1 = errorInfo.value; + try { + return updateMemo(create, deps); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; + } + }, + useReducer: function (reducer, initialArg, init) { + currentHookNameInDev = "useReducer"; + warnInvalidHookAccess(); + updateHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnUpdateInDEV; - update.payload = function () { - return getDerivedStateFromError(error$1); - }; + try { + return rerenderReducer(reducer, initialArg, init); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; + } + }, + useRef: function (initialValue) { + currentHookNameInDev = "useRef"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateRef(); + }, + useState: function (initialState) { + currentHookNameInDev = "useState"; + warnInvalidHookAccess(); + updateHookTypesDev(); + var prevDispatcher = ReactCurrentDispatcher$1.current; + ReactCurrentDispatcher$1.current = + InvalidNestedHooksDispatcherOnUpdateInDEV; - update.callback = function () { - { - markFailedErrorBoundaryForHotReloading(fiber); + try { + return rerenderState(initialState); + } finally { + ReactCurrentDispatcher$1.current = prevDispatcher; } + }, + useDebugValue: function (value, formatterFn) { + currentHookNameInDev = "useDebugValue"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateDebugValue(); + }, + useDeferredValue: function (value) { + currentHookNameInDev = "useDeferredValue"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return rerenderDeferredValue(value); + }, + useTransition: function () { + currentHookNameInDev = "useTransition"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return rerenderTransition(); + }, + useMutableSource: function (source, getSnapshot, subscribe) { + currentHookNameInDev = "useMutableSource"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateMutableSource(source, getSnapshot, subscribe); + }, + useSyncExternalStore: function (subscribe, getSnapshot, getServerSnapshot) { + currentHookNameInDev = "useSyncExternalStore"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateSyncExternalStore(subscribe, getSnapshot); + }, + useId: function () { + currentHookNameInDev = "useId"; + warnInvalidHookAccess(); + updateHookTypesDev(); + return updateId(); + } + }; - logCapturedError(fiber, errorInfo); + { + InvalidNestedHooksDispatcherOnRerenderInDEV.use = function (usable) { + warnInvalidHookAccess(); + return use(usable); }; } - var inst = fiber.stateNode; + { + InvalidNestedHooksDispatcherOnRerenderInDEV.useMemoCache = function (size) { + warnInvalidHookAccess(); + return useMemoCache(size); + }; + } +} - if (inst !== null && typeof inst.componentDidCatch === "function") { - // $FlowFixMe[missing-this-annot] - update.callback = function callback() { - { - markFailedErrorBoundaryForHotReloading(fiber); - } +var now = Scheduler.unstable_now; +var commitTime = 0; +var layoutEffectStartTime = -1; +var profilerStartTime = -1; +var passiveEffectStartTime = -1; +/** + * Tracks whether the current update was a nested/cascading update (scheduled from a layout effect). + * + * The overall sequence is: + * 1. render + * 2. commit (and call `onRender`, `onCommit`) + * 3. check for nested updates + * 4. flush passive effects (and call `onPostCommit`) + * + * Nested updates are identified in step 3 above, + * but step 4 still applies to the work that was just committed. + * We use two flags to track nested updates then: + * one tracks whether the upcoming update is a nested update, + * and the other tracks whether the current update was a nested update. + * The first value gets synced to the second at the start of the render phase. + */ - logCapturedError(fiber, errorInfo); +var currentUpdateIsNested = false; +var nestedUpdateScheduled = false; - if (typeof getDerivedStateFromError !== "function") { - // To preserve the preexisting retry behavior of error boundaries, - // we keep track of which ones already failed during this batch. - // This gets reset before we yield back to the browser. - // TODO: Warn in strict mode if getDerivedStateFromError is - // not defined. - markLegacyErrorBoundaryAsFailed(this); - } +function isCurrentUpdateNested() { + return currentUpdateIsNested; +} - var error$1 = errorInfo.value; - var stack = errorInfo.stack; - this.componentDidCatch(error$1, { - componentStack: stack !== null ? stack : "" - }); +function markNestedUpdateScheduled() { + { + nestedUpdateScheduled = true; + } +} - { - if (typeof getDerivedStateFromError !== "function") { - // If componentDidCatch is the only error boundary method defined, - // then it needs to call setState to recover from errors. - // If no state update is scheduled then the boundary will swallow the error. - if (!includesSomeLane(fiber.lanes, SyncLane)) { - error( - "%s: Error boundaries should implement getDerivedStateFromError(). " + - "In that method, return a state update to display an error message or fallback UI.", - getComponentNameFromFiber(fiber) || "Unknown" - ); - } - } - } - }; +function resetNestedUpdateFlag() { + { + currentUpdateIsNested = false; + nestedUpdateScheduled = false; } +} - return update; +function syncNestedUpdateFlag() { + { + currentUpdateIsNested = nestedUpdateScheduled; + nestedUpdateScheduled = false; + } } -function resetSuspendedComponent(sourceFiber, rootRenderLanes) { - // A legacy mode Suspense quirk, only relevant to hook components. +function getCommitTime() { + return commitTime; +} - var tag = sourceFiber.tag; +function recordCommitTime() { + commitTime = now(); +} - if ( - (sourceFiber.mode & ConcurrentMode) === NoMode && - (tag === FunctionComponent || - tag === ForwardRef || - tag === SimpleMemoComponent) - ) { - var currentSource = sourceFiber.alternate; +function startProfilerTimer(fiber) { + profilerStartTime = now(); - if (currentSource) { - sourceFiber.updateQueue = currentSource.updateQueue; - sourceFiber.memoizedState = currentSource.memoizedState; - sourceFiber.lanes = currentSource.lanes; - } else { - sourceFiber.updateQueue = null; - sourceFiber.memoizedState = null; - } + if (fiber.actualStartTime < 0) { + fiber.actualStartTime = now(); } } -function markSuspenseBoundaryShouldCapture( - suspenseBoundary, - returnFiber, - sourceFiber, - root, - rootRenderLanes -) { - // This marks a Suspense boundary so that when we're unwinding the stack, - // it captures the suspended "exception" and does a second (fallback) pass. - if ((suspenseBoundary.mode & ConcurrentMode) === NoMode) { - // Legacy Mode Suspense - // - // If the boundary is in legacy mode, we should *not* - // suspend the commit. Pretend as if the suspended component rendered - // null and keep rendering. When the Suspense boundary completes, - // we'll do a second pass to render the fallback. - if (suspenseBoundary === returnFiber) { - // Special case where we suspended while reconciling the children of - // a Suspense boundary's inner Offscreen wrapper fiber. This happens - // when a React.lazy component is a direct child of a - // Suspense boundary. - // - // Suspense boundaries are implemented as multiple fibers, but they - // are a single conceptual unit. The legacy mode behavior where we - // pretend the suspended fiber committed as `null` won't work, - // because in this case the "suspended" fiber is the inner - // Offscreen wrapper. - // - // Because the contents of the boundary haven't started rendering - // yet (i.e. nothing in the tree has partially rendered) we can - // switch to the regular, concurrent mode behavior: mark the - // boundary with ShouldCapture and enter the unwind phase. - suspenseBoundary.flags |= ShouldCapture; - } else { - suspenseBoundary.flags |= DidCapture; - sourceFiber.flags |= ForceUpdateForLegacySuspense; // We're going to commit this fiber even though it didn't complete. - // But we shouldn't call any lifecycle methods or callbacks. Remove - // all lifecycle effect tags. - - sourceFiber.flags &= ~(LifecycleEffectMask | Incomplete); - - if (sourceFiber.tag === ClassComponent) { - var currentSourceFiber = sourceFiber.alternate; +function stopProfilerTimerIfRunning(fiber) { + profilerStartTime = -1; +} - if (currentSourceFiber === null) { - // This is a new mount. Change the tag so it's not mistaken for a - // completed class component. For example, we should not call - // componentWillUnmount if it is deleted. - sourceFiber.tag = IncompleteClassComponent; - } else { - // When we try rendering again, we should not reuse the current fiber, - // since it's known to be in an inconsistent state. Use a force update to - // prevent a bail out. - var update = createUpdate(SyncLane); - update.tag = ForceUpdate; - enqueueUpdate(sourceFiber, update, SyncLane); - } - } // The source fiber did not complete. Mark it with Sync priority to - // indicate that it still has pending work. +function stopProfilerTimerIfRunningAndRecordDelta(fiber, overrideBaseTime) { + if (profilerStartTime >= 0) { + var elapsedTime = now() - profilerStartTime; + fiber.actualDuration += elapsedTime; - sourceFiber.lanes = mergeLanes(sourceFiber.lanes, SyncLane); + if (overrideBaseTime) { + fiber.selfBaseDuration = elapsedTime; } - return suspenseBoundary; - } // Confirmed that the boundary is in a concurrent mode tree. Continue - // with the normal suspend path. - // - // After this we'll use a set of heuristics to determine whether this - // render pass will run to completion or restart or "suspend" the commit. - // The actual logic for this is spread out in different places. - // - // This first principle is that if we're going to suspend when we complete - // a root, then we should also restart if we get an update or ping that - // might unsuspend it, and vice versa. The only reason to suspend is - // because you think you might want to restart before committing. However, - // it doesn't make sense to restart only while in the period we're suspended. - // - // Restarting too aggressively is also not good because it starves out any - // intermediate loading state. So we use heuristics to determine when. - // Suspense Heuristics - // - // If nothing threw a Promise or all the same fallbacks are already showing, - // then don't suspend/restart. - // - // If this is an initial render of a new tree of Suspense boundaries and - // those trigger a fallback, then don't suspend/restart. We want to ensure - // that we can show the initial loading state as quickly as possible. - // - // If we hit a "Delayed" case, such as when we'd switch from content back into - // a fallback, then we should always suspend/restart. Transitions apply - // to this case. If none is defined, JND is used instead. - // - // If we're already showing a fallback and it gets "retried", allowing us to show - // another level, but there's still an inner boundary that would show a fallback, - // then we suspend/restart for 500ms since the last time we showed a fallback - // anywhere in the tree. This effectively throttles progressive loading into a - // consistent train of commits. This also gives us an opportunity to restart to - // get to the completed state slightly earlier. - // - // If there's ambiguity due to batching it's resolved in preference of: - // 1) "delayed", 2) "initial render", 3) "retry". - // - // We want to ensure that a "busy" state doesn't get force committed. We want to - // ensure that new initial loading states can commit as soon as possible. + profilerStartTime = -1; + } +} - suspenseBoundary.flags |= ShouldCapture; // TODO: I think we can remove this, since we now use `DidCapture` in - // the begin phase to prevent an early bailout. +function recordLayoutEffectDuration(fiber) { + if (layoutEffectStartTime >= 0) { + var elapsedTime = now() - layoutEffectStartTime; + layoutEffectStartTime = -1; // Store duration on the next nearest Profiler ancestor + // Or the root (for the DevTools Profiler to read) - suspenseBoundary.lanes = rootRenderLanes; - return suspenseBoundary; -} + var parentFiber = fiber.return; -function throwException( - root, - returnFiber, - sourceFiber, - value, - rootRenderLanes -) { - // The source fiber did not complete. - sourceFiber.flags |= Incomplete; + while (parentFiber !== null) { + switch (parentFiber.tag) { + case HostRoot: + var root = parentFiber.stateNode; + root.effectDuration += elapsedTime; + return; - { - if (isDevToolsPresent) { - // If we have pending work still, restore the original updaters - restorePendingUpdaters(root, rootRenderLanes); + case Profiler: + var parentStateNode = parentFiber.stateNode; + parentStateNode.effectDuration += elapsedTime; + return; + } + + parentFiber = parentFiber.return; } } +} - if ( - value !== null && - typeof value === "object" && - typeof value.then === "function" - ) { - // This is a wakeable. The component suspended. - var wakeable = value; - resetSuspendedComponent(sourceFiber); - - var suspenseBoundary = getSuspenseHandler(); - - if (suspenseBoundary !== null) { - switch (suspenseBoundary.tag) { - case SuspenseComponent: { - // If this suspense boundary is not already showing a fallback, mark - // the in-progress render as suspended. We try to perform this logic - // as soon as soon as possible during the render phase, so the work - // loop can know things like whether it's OK to switch to other tasks, - // or whether it can wait for data to resolve before continuing. - // TODO: Most of these checks are already performed when entering a - // Suspense boundary. We should track the information on the stack so - // we don't have to recompute it on demand. This would also allow us - // to unify with `use` which needs to perform this logic even sooner, - // before `throwException` is called. - if (sourceFiber.mode & ConcurrentMode) { - if (getShellBoundary() === null) { - // Suspended in the "shell" of the app. This is an undesirable - // loading state. We should avoid committing this tree. - renderDidSuspendDelayIfPossible(); - } else { - // If we suspended deeper than the shell, we don't need to delay - // the commmit. However, we still call renderDidSuspend if this is - // a new boundary, to tell the work loop that a new fallback has - // appeared during this render. - // TODO: Theoretically we should be able to delete this branch. - // It's currently used for two things: 1) to throttle the - // appearance of successive loading states, and 2) in - // SuspenseList, to determine whether the children include any - // pending fallbacks. For 1, we should apply throttling to all - // retries, not just ones that render an additional fallback. For - // 2, we should check subtreeFlags instead. Then we can delete - // this branch. - var current = suspenseBoundary.alternate; +function recordPassiveEffectDuration(fiber) { + if (passiveEffectStartTime >= 0) { + var elapsedTime = now() - passiveEffectStartTime; + passiveEffectStartTime = -1; // Store duration on the next nearest Profiler ancestor + // Or the root (for the DevTools Profiler to read) - if (current === null) { - renderDidSuspend(); - } - } - } + var parentFiber = fiber.return; - suspenseBoundary.flags &= ~ForceClientRender; - markSuspenseBoundaryShouldCapture( - suspenseBoundary, - returnFiber, - sourceFiber, - root, - rootRenderLanes - ); // Retry listener - // - // If the fallback does commit, we need to attach a different type of - // listener. This one schedules an update on the Suspense boundary to - // turn the fallback state off. - // - // Stash the wakeable on the boundary fiber so we can access it in the - // commit phase. - // - // When the wakeable resolves, we'll attempt to render the boundary - // again ("retry"). - // Check if this is a Suspensey resource. We do not attach retry - // listeners to these, because we don't actually need them for - // rendering. Only for committing. Instead, if a fallback commits - // and the only thing that suspended was a Suspensey resource, we - // retry immediately. - // TODO: Refactor throwException so that we don't have to do this type - // check. The caller already knows what the cause was. + while (parentFiber !== null) { + switch (parentFiber.tag) { + case HostRoot: + var root = parentFiber.stateNode; - var isSuspenseyResource = wakeable === noopSuspenseyCommitThenable; + if (root !== null) { + root.passiveEffectDuration += elapsedTime; + } - if (isSuspenseyResource) { - suspenseBoundary.flags |= ScheduleRetry; - } else { - var retryQueue = suspenseBoundary.updateQueue; + return; - if (retryQueue === null) { - suspenseBoundary.updateQueue = new Set([wakeable]); - } else { - retryQueue.add(wakeable); - } - } + case Profiler: + var parentStateNode = parentFiber.stateNode; - break; - } + if (parentStateNode !== null) { + // Detached fibers have their state node cleared out. + // In this case, the return pointer is also cleared out, + // so we won't be able to report the time spent in this Profiler's subtree. + parentStateNode.passiveEffectDuration += elapsedTime; + } - case OffscreenComponent: { - if (suspenseBoundary.mode & ConcurrentMode) { - suspenseBoundary.flags |= ShouldCapture; + return; + } - var _isSuspenseyResource = wakeable === noopSuspenseyCommitThenable; + parentFiber = parentFiber.return; + } + } +} - if (_isSuspenseyResource) { - suspenseBoundary.flags |= ScheduleRetry; - } else { - var offscreenQueue = suspenseBoundary.updateQueue; +function startLayoutEffectTimer() { + layoutEffectStartTime = now(); +} - if (offscreenQueue === null) { - var newOffscreenQueue = { - transitions: null, - markerInstances: null, - retryQueue: new Set([wakeable]) - }; - suspenseBoundary.updateQueue = newOffscreenQueue; - } else { - var _retryQueue = offscreenQueue.retryQueue; +function startPassiveEffectTimer() { + passiveEffectStartTime = now(); +} - if (_retryQueue === null) { - offscreenQueue.retryQueue = new Set([wakeable]); - } else { - _retryQueue.add(wakeable); - } - } - } +function transferActualDuration(fiber) { + // Transfer time spent rendering these children so we don't lose it + // after we rerender. This is used as a helper in special cases + // where we should count the work of multiple passes. + var child = fiber.child; - break; - } - } - // eslint-disable-next-line no-fallthrough + while (child) { + // $FlowFixMe[unsafe-addition] addition with possible null/undefined value + fiber.actualDuration += child.actualDuration; + child = child.sibling; + } +} - default: { - throw new Error( - "Unexpected Suspense handler tag (" + - suspenseBoundary.tag + - "). This " + - "is a bug in React." - ); - } - } // We only attach ping listeners in concurrent mode. Legacy Suspense always - // commits fallbacks synchronously, so there are no pings. +function resolveDefaultProps(Component, baseProps) { + if (Component && Component.defaultProps) { + // Resolve default props. Taken from ReactElement + var props = assign({}, baseProps); + var defaultProps = Component.defaultProps; - if (suspenseBoundary.mode & ConcurrentMode) { - attachPingListener(root, wakeable, rootRenderLanes); + for (var propName in defaultProps) { + if (props[propName] === undefined) { + props[propName] = defaultProps[propName]; } + } + + return props; + } + + return baseProps; +} + +var fakeInternalInstance = {}; +var didWarnAboutStateAssignmentForComponent; +var didWarnAboutUninitializedState; +var didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate; +var didWarnAboutLegacyLifecyclesAndDerivedState; +var didWarnAboutUndefinedDerivedState; +var didWarnAboutDirectlyAssigningPropsToState; +var didWarnAboutContextTypeAndContextTypes; +var didWarnAboutInvalidateContextType; +var didWarnOnInvalidCallback; + +{ + didWarnAboutStateAssignmentForComponent = new Set(); + didWarnAboutUninitializedState = new Set(); + didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate = new Set(); + didWarnAboutLegacyLifecyclesAndDerivedState = new Set(); + didWarnAboutDirectlyAssigningPropsToState = new Set(); + didWarnAboutUndefinedDerivedState = new Set(); + didWarnAboutContextTypeAndContextTypes = new Set(); + didWarnAboutInvalidateContextType = new Set(); + didWarnOnInvalidCallback = new Set(); // This is so gross but it's at least non-critical and can be removed if + // it causes problems. This is meant to give a nicer error message for + // ReactDOM15.unstable_renderSubtreeIntoContainer(reactDOM16Component, + // ...)) which otherwise throws a "_processChildContext is not a function" + // exception. + + Object.defineProperty(fakeInternalInstance, "_processChildContext", { + enumerable: false, + value: function () { + throw new Error( + "_processChildContext is not available in React 16+. This likely " + + "means you have multiple copies of React and are attempting to nest " + + "a React 15 tree inside a React 16 tree using " + + "unstable_renderSubtreeIntoContainer, which isn't supported. Try " + + "to make sure you have only one copy of React (and ideally, switch " + + "to ReactDOM.createPortal)." + ); + } + }); + Object.freeze(fakeInternalInstance); +} +function warnOnInvalidCallback(callback, callerName) { + { + if (callback === null || typeof callback === "function") { return; - } else { - // No boundary was found. Unless this is a sync update, this is OK. - // We can suspend and wait for more data to arrive. - if (root.tag === ConcurrentRoot) { - // In a concurrent root, suspending without a Suspense boundary is - // allowed. It will suspend indefinitely without committing. - // - // TODO: Should we have different behavior for discrete updates? What - // about flushSync? Maybe it should put the tree into an inert state, - // and potentially log a warning. Revisit this for a future release. - attachPingListener(root, wakeable, rootRenderLanes); - renderDidSuspendDelayIfPossible(); - return; - } else { - // In a legacy root, suspending without a boundary is always an error. - var uncaughtSuspenseError = new Error( - "A component suspended while responding to synchronous input. This " + - "will cause the UI to be replaced with a loading indicator. To " + - "fix, updates that suspend should be wrapped " + - "with startTransition." + } + + var key = callerName + "_" + callback; + + if (!didWarnOnInvalidCallback.has(key)) { + didWarnOnInvalidCallback.add(key); + + error( + "%s(...): Expected the last optional `callback` argument to be a " + + "function. Instead received: %s.", + callerName, + callback + ); + } + } +} + +function warnOnUndefinedDerivedState(type, partialState) { + { + if (partialState === undefined) { + var componentName = getComponentNameFromType(type) || "Component"; + + if (!didWarnAboutUndefinedDerivedState.has(componentName)) { + didWarnAboutUndefinedDerivedState.add(componentName); + + error( + "%s.getDerivedStateFromProps(): A valid state object (or null) must be returned. " + + "You have returned undefined.", + componentName ); - value = uncaughtSuspenseError; } } } +} - value = createCapturedValueAtFiber(value, sourceFiber); - renderDidError(value); // We didn't find a boundary that could handle this type of exception. Start - // over and traverse parent path again, this time treating the exception - // as an error. +function applyDerivedStateFromProps( + workInProgress, + ctor, + getDerivedStateFromProps, + nextProps +) { + var prevState = workInProgress.memoizedState; + var partialState = getDerivedStateFromProps(nextProps, prevState); - var workInProgress = returnFiber; + { + if (workInProgress.mode & StrictLegacyMode) { + setIsStrictModeForDevtools(true); - do { - switch (workInProgress.tag) { - case HostRoot: { - var _errorInfo = value; - workInProgress.flags |= ShouldCapture; - var lane = pickArbitraryLane(rootRenderLanes); - workInProgress.lanes = mergeLanes(workInProgress.lanes, lane); - var update = createRootErrorUpdate(workInProgress, _errorInfo, lane); - enqueueCapturedUpdate(workInProgress, update); - return; + try { + // Invoke the function an extra time to help detect side-effects. + partialState = getDerivedStateFromProps(nextProps, prevState); + } finally { + setIsStrictModeForDevtools(false); + } + } + + warnOnUndefinedDerivedState(ctor, partialState); + } // Merge the partial state and the previous state. + + var memoizedState = + partialState === null || partialState === undefined + ? prevState + : assign({}, prevState, partialState); + workInProgress.memoizedState = memoizedState; // Once the update queue is empty, persist the derived state onto the + // base state. + + if (workInProgress.lanes === NoLanes) { + // Queue is always non-null for classes + var updateQueue = workInProgress.updateQueue; + updateQueue.baseState = memoizedState; + } +} + +var classComponentUpdater = { + isMounted: isMounted, + // $FlowFixMe[missing-local-annot] + enqueueSetState: function (inst, payload, callback) { + var fiber = get(inst); + var lane = requestUpdateLane(fiber); + var update = createUpdate(lane); + update.payload = payload; + + if (callback !== undefined && callback !== null) { + { + warnOnInvalidCallback(callback, "setState"); } - case ClassComponent: - // Capture and retry - var errorInfo = value; - var ctor = workInProgress.type; - var instance = workInProgress.stateNode; + update.callback = callback; + } - if ( - (workInProgress.flags & DidCapture) === NoFlags$1 && - (typeof ctor.getDerivedStateFromError === "function" || - (instance !== null && - typeof instance.componentDidCatch === "function" && - !isAlreadyFailedLegacyErrorBoundary(instance))) - ) { - workInProgress.flags |= ShouldCapture; + var root = enqueueUpdate(fiber, update, lane); - var _lane = pickArbitraryLane(rootRenderLanes); + if (root !== null) { + var eventTime = requestEventTime(); + scheduleUpdateOnFiber(root, fiber, lane, eventTime); + entangleTransitions(root, fiber, lane); + } - workInProgress.lanes = mergeLanes(workInProgress.lanes, _lane); // Schedule the error boundary to re-render using updated state + { + markStateUpdateScheduled(fiber, lane); + } + }, + enqueueReplaceState: function (inst, payload, callback) { + var fiber = get(inst); + var lane = requestUpdateLane(fiber); + var update = createUpdate(lane); + update.tag = ReplaceState; + update.payload = payload; - var _update = createClassErrorUpdate( - workInProgress, - errorInfo, - _lane - ); + if (callback !== undefined && callback !== null) { + { + warnOnInvalidCallback(callback, "replaceState"); + } - enqueueCapturedUpdate(workInProgress, _update); - return; - } + update.callback = callback; + } - break; - } // $FlowFixMe[incompatible-type] we bail out when we get a null + var root = enqueueUpdate(fiber, update, lane); - workInProgress = workInProgress.return; - } while (workInProgress !== null); -} + if (root !== null) { + var eventTime = requestEventTime(); + scheduleUpdateOnFiber(root, fiber, lane, eventTime); + entangleTransitions(root, fiber, lane); + } -var ReactCurrentOwner$2 = ReactSharedInternals.ReactCurrentOwner; // A special exception that's used to unwind the stack when an update flows -// into a dehydrated boundary. + { + markStateUpdateScheduled(fiber, lane); + } + }, + // $FlowFixMe[missing-local-annot] + enqueueForceUpdate: function (inst, callback) { + var fiber = get(inst); + var lane = requestUpdateLane(fiber); + var update = createUpdate(lane); + update.tag = ForceUpdate; -var SelectiveHydrationException = new Error( - "This is not a real error. It's an implementation detail of React's " + - "selective hydration feature. If this leaks into userspace, it's a bug in " + - "React. Please file an issue." -); -var didReceiveUpdate = false; -var didWarnAboutBadClass; -var didWarnAboutModulePatternComponent; -var didWarnAboutContextTypeOnFunctionComponent; -var didWarnAboutGetDerivedStateOnFunctionComponent; -var didWarnAboutFunctionRefs; -var didWarnAboutReassigningProps; -var didWarnAboutRevealOrder; -var didWarnAboutTailOptions; -var didWarnAboutDefaultPropsOnFunctionComponent; + if (callback !== undefined && callback !== null) { + { + warnOnInvalidCallback(callback, "forceUpdate"); + } -{ - didWarnAboutBadClass = {}; - didWarnAboutModulePatternComponent = {}; - didWarnAboutContextTypeOnFunctionComponent = {}; - didWarnAboutGetDerivedStateOnFunctionComponent = {}; - didWarnAboutFunctionRefs = {}; - didWarnAboutReassigningProps = false; - didWarnAboutRevealOrder = {}; - didWarnAboutTailOptions = {}; - didWarnAboutDefaultPropsOnFunctionComponent = {}; -} + update.callback = callback; + } -function reconcileChildren(current, workInProgress, nextChildren, renderLanes) { - if (current === null) { - // If this is a fresh new component that hasn't been rendered yet, we - // won't update its child set by applying minimal side-effects. Instead, - // we will add them all to the child before it gets rendered. That means - // we can optimize this reconciliation pass by not tracking side-effects. - workInProgress.child = mountChildFibers( - workInProgress, - null, - nextChildren, - renderLanes - ); - } else { - // If the current child is the same as the work in progress, it means that - // we haven't yet started any work on these children. Therefore, we use - // the clone algorithm to create a copy of all the current children. - // If we had any progressed work already, that is invalid at this point so - // let's throw it out. - workInProgress.child = reconcileChildFibers( - workInProgress, - current.child, - nextChildren, - renderLanes - ); + var root = enqueueUpdate(fiber, update, lane); + + if (root !== null) { + var eventTime = requestEventTime(); + scheduleUpdateOnFiber(root, fiber, lane, eventTime); + entangleTransitions(root, fiber, lane); + } + + { + markForceUpdateScheduled(fiber, lane); + } } -} +}; -function forceUnmountCurrentAndReconcile( - current, +function checkShouldComponentUpdate( workInProgress, - nextChildren, - renderLanes + ctor, + oldProps, + newProps, + oldState, + newState, + nextContext ) { - // This function is fork of reconcileChildren. It's used in cases where we - // want to reconcile without matching against the existing set. This has the - // effect of all current children being unmounted; even if the type and key - // are the same, the old child is unmounted and a new child is created. - // - // To do this, we're going to go through the reconcile algorithm twice. In - // the first pass, we schedule a deletion for all the current children by - // passing null. - workInProgress.child = reconcileChildFibers( - workInProgress, - current.child, - null, - renderLanes - ); // In the second pass, we mount the new children. The trick here is that we - // pass null in place of where we usually pass the current child set. This has - // the effect of remounting all children regardless of whether their - // identities match. + var instance = workInProgress.stateNode; - workInProgress.child = reconcileChildFibers( - workInProgress, - null, - nextChildren, - renderLanes - ); -} + if (typeof instance.shouldComponentUpdate === "function") { + var shouldUpdate = instance.shouldComponentUpdate( + newProps, + newState, + nextContext + ); -function updateForwardRef( - current, - workInProgress, - Component, - nextProps, - renderLanes -) { - // TODO: current can be non-null here even if the component - // hasn't yet mounted. This happens after the first render suspends. - // We'll need to figure out if this is fine or can cause issues. - { - if (workInProgress.type !== workInProgress.elementType) { - // Lazy component props can't be validated in createElement - // because they're only guaranteed to be resolved here. - var innerPropTypes = Component.propTypes; + { + if (workInProgress.mode & StrictLegacyMode) { + setIsStrictModeForDevtools(true); - if (innerPropTypes) { - checkPropTypes( - innerPropTypes, - nextProps, // Resolved props - "prop", - getComponentNameFromType(Component) + try { + // Invoke the function an extra time to help detect side-effects. + shouldUpdate = instance.shouldComponentUpdate( + newProps, + newState, + nextContext + ); + } finally { + setIsStrictModeForDevtools(false); + } + } + + if (shouldUpdate === undefined) { + error( + "%s.shouldComponentUpdate(): Returned undefined instead of a " + + "boolean value. Make sure to return true or false.", + getComponentNameFromType(ctor) || "Component" ); } } - } - - var render = Component.render; - var ref = workInProgress.ref; // The rest is a fork of updateFunctionComponent - - var nextChildren; - prepareToReadContext(workInProgress, renderLanes); - - { - markComponentRenderStarted(workInProgress); - } - - { - ReactCurrentOwner$2.current = workInProgress; - setIsRendering(true); - nextChildren = renderWithHooks( - current, - workInProgress, - render, - nextProps, - ref, - renderLanes - ); - setIsRendering(false); - } - { - markComponentRenderStopped(); + return shouldUpdate; } - if (current !== null && !didReceiveUpdate) { - bailoutHooks(current, workInProgress, renderLanes); - return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes); + if (ctor.prototype && ctor.prototype.isPureReactComponent) { + return ( + !shallowEqual(oldProps, newProps) || !shallowEqual(oldState, newState) + ); } - workInProgress.flags |= PerformedWork; - reconcileChildren(current, workInProgress, nextChildren, renderLanes); - return workInProgress.child; + return true; } -function updateMemoComponent( - current, - workInProgress, - Component, - nextProps, - renderLanes -) { - if (current === null) { - var type = Component.type; +function checkClassInstance(workInProgress, ctor, newProps) { + var instance = workInProgress.stateNode; + + { + var name = getComponentNameFromType(ctor) || "Component"; + var renderPresent = instance.render; + + if (!renderPresent) { + if (ctor.prototype && typeof ctor.prototype.render === "function") { + error( + "%s(...): No `render` method found on the returned component " + + "instance: did you accidentally return an object from the constructor?", + name + ); + } else { + error( + "%s(...): No `render` method found on the returned component " + + "instance: you may have forgotten to define `render`.", + name + ); + } + } if ( - isSimpleFunctionComponent(type) && - Component.compare === null && // SimpleMemoComponent codepath doesn't resolve outer props either. - Component.defaultProps === undefined + instance.getInitialState && + !instance.getInitialState.isReactClassApproved && + !instance.state ) { - var resolvedType = type; - - { - resolvedType = resolveFunctionForHotReloading(type); - } // If this is a plain function component without default props, - // and with only the default shallow comparison, we upgrade it - // to a SimpleMemoComponent to allow fast path updates. + error( + "getInitialState was defined on %s, a plain JavaScript class. " + + "This is only supported for classes created using React.createClass. " + + "Did you mean to define a state property instead?", + name + ); + } - workInProgress.tag = SimpleMemoComponent; - workInProgress.type = resolvedType; + if ( + instance.getDefaultProps && + !instance.getDefaultProps.isReactClassApproved + ) { + error( + "getDefaultProps was defined on %s, a plain JavaScript class. " + + "This is only supported for classes created using React.createClass. " + + "Use a static property to define defaultProps instead.", + name + ); + } - { - validateFunctionComponentInDev(workInProgress, type); - } + if (instance.propTypes) { + error( + "propTypes was defined as an instance property on %s. Use a static " + + "property to define propTypes instead.", + name + ); + } - return updateSimpleMemoComponent( - current, - workInProgress, - resolvedType, - nextProps, - renderLanes + if (instance.contextType) { + error( + "contextType was defined as an instance property on %s. Use a static " + + "property to define contextType instead.", + name ); } { - var innerPropTypes = type.propTypes; - - if (innerPropTypes) { - // Inner memo component props aren't currently validated in createElement. - // We could move it there, but we'd still need this for lazy code path. - checkPropTypes( - innerPropTypes, - nextProps, // Resolved props - "prop", - getComponentNameFromType(type) + if (instance.contextTypes) { + error( + "contextTypes was defined as an instance property on %s. Use a static " + + "property to define contextTypes instead.", + name ); } - if (Component.defaultProps !== undefined) { - var componentName = getComponentNameFromType(type) || "Unknown"; - - if (!didWarnAboutDefaultPropsOnFunctionComponent[componentName]) { - error( - "%s: Support for defaultProps will be removed from memo components " + - "in a future major release. Use JavaScript default parameters instead.", - componentName - ); + if ( + ctor.contextType && + ctor.contextTypes && + !didWarnAboutContextTypeAndContextTypes.has(ctor) + ) { + didWarnAboutContextTypeAndContextTypes.add(ctor); - didWarnAboutDefaultPropsOnFunctionComponent[componentName] = true; - } + error( + "%s declares both contextTypes and contextType static properties. " + + "The legacy contextTypes property will be ignored.", + name + ); } } - var child = createFiberFromTypeAndProps( - Component.type, - null, - nextProps, - workInProgress, - workInProgress.mode, - renderLanes - ); - child.ref = workInProgress.ref; - child.return = workInProgress; - workInProgress.child = child; - return child; - } - - { - var _type = Component.type; - var _innerPropTypes = _type.propTypes; - - if (_innerPropTypes) { - // Inner memo component props aren't currently validated in createElement. - // We could move it there, but we'd still need this for lazy code path. - checkPropTypes( - _innerPropTypes, - nextProps, // Resolved props - "prop", - getComponentNameFromType(_type) + if (typeof instance.componentShouldUpdate === "function") { + error( + "%s has a method called " + + "componentShouldUpdate(). Did you mean shouldComponentUpdate()? " + + "The name is phrased as a question because the function is " + + "expected to return a value.", + name ); } - } - - var currentChild = current.child; // This is always exactly one child - - var hasScheduledUpdateOrContext = checkScheduledUpdateOrContext( - current, - renderLanes - ); - - if (!hasScheduledUpdateOrContext) { - // This will be the props with resolved defaultProps, - // unlike current.memoizedProps which will be the unresolved ones. - var prevProps = currentChild.memoizedProps; // Default to shallow comparison - - var compare = Component.compare; - compare = compare !== null ? compare : shallowEqual; - if (compare(prevProps, nextProps) && current.ref === workInProgress.ref) { - return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes); + if ( + ctor.prototype && + ctor.prototype.isPureReactComponent && + typeof instance.shouldComponentUpdate !== "undefined" + ) { + error( + "%s has a method called shouldComponentUpdate(). " + + "shouldComponentUpdate should not be used when extending React.PureComponent. " + + "Please extend React.Component if shouldComponentUpdate is used.", + getComponentNameFromType(ctor) || "A pure component" + ); } - } // React DevTools reads this flag. - workInProgress.flags |= PerformedWork; - var newChild = createWorkInProgress(currentChild, nextProps); - newChild.ref = workInProgress.ref; - newChild.return = workInProgress; - workInProgress.child = newChild; - return newChild; -} + if (typeof instance.componentDidUnmount === "function") { + error( + "%s has a method called " + + "componentDidUnmount(). But there is no such lifecycle method. " + + "Did you mean componentWillUnmount()?", + name + ); + } -function updateSimpleMemoComponent( - current, - workInProgress, - Component, - nextProps, - renderLanes -) { - // TODO: current can be non-null here even if the component - // hasn't yet mounted. This happens when the inner render suspends. - // We'll need to figure out if this is fine or can cause issues. - { - if (workInProgress.type !== workInProgress.elementType) { - // Lazy component props can't be validated in createElement - // because they're only guaranteed to be resolved here. - var outerMemoType = workInProgress.elementType; + if (typeof instance.componentDidReceiveProps === "function") { + error( + "%s has a method called " + + "componentDidReceiveProps(). But there is no such lifecycle method. " + + "If you meant to update the state in response to changing props, " + + "use componentWillReceiveProps(). If you meant to fetch data or " + + "run side-effects or mutations after React has updated the UI, use componentDidUpdate().", + name + ); + } - if (outerMemoType.$$typeof === REACT_LAZY_TYPE) { - // We warn when you define propTypes on lazy() - // so let's just skip over it to find memo() outer wrapper. - // Inner props for memo are validated later. - var lazyComponent = outerMemoType; - var payload = lazyComponent._payload; - var init = lazyComponent._init; + if (typeof instance.componentWillRecieveProps === "function") { + error( + "%s has a method called " + + "componentWillRecieveProps(). Did you mean componentWillReceiveProps()?", + name + ); + } - try { - outerMemoType = init(payload); - } catch (x) { - outerMemoType = null; - } // Inner propTypes will be validated in the function component path. + if (typeof instance.UNSAFE_componentWillRecieveProps === "function") { + error( + "%s has a method called " + + "UNSAFE_componentWillRecieveProps(). Did you mean UNSAFE_componentWillReceiveProps()?", + name + ); + } - var outerPropTypes = outerMemoType && outerMemoType.propTypes; + var hasMutatedProps = instance.props !== newProps; - if (outerPropTypes) { - checkPropTypes( - outerPropTypes, - nextProps, // Resolved (SimpleMemoComponent has no defaultProps) - "prop", - getComponentNameFromType(outerMemoType) - ); - } - } + if (instance.props !== undefined && hasMutatedProps) { + error( + "%s(...): When calling super() in `%s`, make sure to pass " + + "up the same props that your component's constructor was passed.", + name, + name + ); } - } - if (current !== null) { - var prevProps = current.memoizedProps; + if (instance.defaultProps) { + error( + "Setting defaultProps as an instance property on %s is not supported and will be ignored." + + " Instead, define defaultProps as a static property on %s.", + name, + name + ); + } if ( - shallowEqual(prevProps, nextProps) && - current.ref === workInProgress.ref && // Prevent bailout if the implementation changed due to hot reload. - workInProgress.type === current.type + typeof instance.getSnapshotBeforeUpdate === "function" && + typeof instance.componentDidUpdate !== "function" && + !didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate.has(ctor) ) { - didReceiveUpdate = false; // The props are shallowly equal. Reuse the previous props object, like we - // would during a normal fiber bailout. - // - // We don't have strong guarantees that the props object is referentially - // equal during updates where we can't bail out anyway — like if the props - // are shallowly equal, but there's a local state or context update in the - // same batch. - // - // However, as a principle, we should aim to make the behavior consistent - // across different ways of memoizing a component. For example, React.memo - // has a different internal Fiber layout if you pass a normal function - // component (SimpleMemoComponent) versus if you pass a different type - // like forwardRef (MemoComponent). But this is an implementation detail. - // Wrapping a component in forwardRef (or React.lazy, etc) shouldn't - // affect whether the props object is reused during a bailout. - - workInProgress.pendingProps = nextProps = prevProps; + didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate.add(ctor); - if (!checkScheduledUpdateOrContext(current, renderLanes)) { - // The pending lanes were cleared at the beginning of beginWork. We're - // about to bail out, but there might be other lanes that weren't - // included in the current render. Usually, the priority level of the - // remaining updates is accumulated during the evaluation of the - // component (i.e. when processing the update queue). But since since - // we're bailing out early *without* evaluating the component, we need - // to account for it here, too. Reset to the value of the current fiber. - // NOTE: This only applies to SimpleMemoComponent, not MemoComponent, - // because a MemoComponent fiber does not have hooks or an update queue; - // rather, it wraps around an inner component, which may or may not - // contains hooks. - // TODO: Move the reset at in beginWork out of the common path so that - // this is no longer necessary. - workInProgress.lanes = current.lanes; - return bailoutOnAlreadyFinishedWork( - current, - workInProgress, - renderLanes - ); - } else if ((current.flags & ForceUpdateForLegacySuspense) !== NoFlags$1) { - // This is a special case that only exists for legacy mode. - // See https://github.com/facebook/react/pull/19216. - didReceiveUpdate = true; - } + error( + "%s: getSnapshotBeforeUpdate() should be used with componentDidUpdate(). " + + "This component defines getSnapshotBeforeUpdate() only.", + getComponentNameFromType(ctor) + ); } - } - return updateFunctionComponent( - current, - workInProgress, - Component, - nextProps, - renderLanes - ); -} + if (typeof instance.getDerivedStateFromProps === "function") { + error( + "%s: getDerivedStateFromProps() is defined as an instance method " + + "and will be ignored. Instead, declare it as a static method.", + name + ); + } -function updateOffscreenComponent(current, workInProgress, renderLanes) { - var nextProps = workInProgress.pendingProps; - var nextChildren = nextProps.children; - var nextIsDetached = - (workInProgress.stateNode._pendingVisibility & OffscreenDetached) !== 0; - var prevState = current !== null ? current.memoizedState : null; - markRef$1(current, workInProgress); + if (typeof instance.getDerivedStateFromError === "function") { + error( + "%s: getDerivedStateFromError() is defined as an instance method " + + "and will be ignored. Instead, declare it as a static method.", + name + ); + } - if ( - nextProps.mode === "hidden" || - nextProps.mode === "unstable-defer-without-hiding" || - nextIsDetached - ) { - // Rendering a hidden tree. - var didSuspend = (workInProgress.flags & DidCapture) !== NoFlags$1; + if (typeof ctor.getSnapshotBeforeUpdate === "function") { + error( + "%s: getSnapshotBeforeUpdate() is defined as a static method " + + "and will be ignored. Instead, declare it as an instance method.", + name + ); + } - if (didSuspend) { - // Something suspended inside a hidden tree - // Include the base lanes from the last render - var nextBaseLanes = - prevState !== null - ? mergeLanes(prevState.baseLanes, renderLanes) - : renderLanes; + var state = instance.state; - if (current !== null) { - // Reset to the current children - var currentChild = (workInProgress.child = current.child); // The current render suspended, but there may be other lanes with - // pending work. We can't read `childLanes` from the current Offscreen - // fiber because we reset it when it was deferred; however, we can read - // the pending lanes from the child fibers. + if (state && (typeof state !== "object" || isArray(state))) { + error("%s.state: must be set to an object or null", name); + } - var currentChildLanes = NoLanes; + if ( + typeof instance.getChildContext === "function" && + typeof ctor.childContextTypes !== "object" + ) { + error( + "%s.getChildContext(): childContextTypes must be defined in order to " + + "use getChildContext().", + name + ); + } + } +} - while (currentChild !== null) { - currentChildLanes = mergeLanes( - mergeLanes(currentChildLanes, currentChild.lanes), - currentChild.childLanes - ); - currentChild = currentChild.sibling; - } +function adoptClassInstance(workInProgress, instance) { + instance.updater = classComponentUpdater; + workInProgress.stateNode = instance; // The instance needs access to the fiber so that it can schedule updates - var lanesWeJustAttempted = nextBaseLanes; - var remainingChildLanes = removeLanes( - currentChildLanes, - lanesWeJustAttempted - ); - workInProgress.childLanes = remainingChildLanes; - } else { - workInProgress.childLanes = NoLanes; - workInProgress.child = null; - } + set(instance, workInProgress); - return deferHiddenOffscreenComponent( - current, - workInProgress, - nextBaseLanes - ); - } + { + instance._reactInternalInstance = fakeInternalInstance; + } +} - if ((workInProgress.mode & ConcurrentMode) === NoMode) { - // In legacy sync mode, don't defer the subtree. Render it now. - // TODO: Consider how Offscreen should work with transitions in the future - var nextState = { - baseLanes: NoLanes, - cachePool: null - }; - workInProgress.memoizedState = nextState; +function constructClassInstance(workInProgress, ctor, props) { + var isLegacyContextConsumer = false; + var unmaskedContext = emptyContextObject; + var context = emptyContextObject; + var contextType = ctor.contextType; - reuseHiddenContextOnStack(workInProgress); - pushOffscreenSuspenseHandler(workInProgress); - } else if (!includesSomeLane(renderLanes, OffscreenLane)) { - // We're hidden, and we're not rendering at Offscreen. We will bail out - // and resume this tree later. - // Schedule this fiber to re-render at Offscreen priority - workInProgress.lanes = workInProgress.childLanes = - laneToLanes(OffscreenLane); // Include the base lanes from the last render + { + if ("contextType" in ctor) { + var isValid = // Allow null for conditional declaration + contextType === null || + (contextType !== undefined && + contextType.$$typeof === REACT_CONTEXT_TYPE && + contextType._context === undefined); // Not a - var _nextBaseLanes = - prevState !== null - ? mergeLanes(prevState.baseLanes, renderLanes) - : renderLanes; + if (!isValid && !didWarnAboutInvalidateContextType.has(ctor)) { + didWarnAboutInvalidateContextType.add(ctor); + var addendum = ""; - return deferHiddenOffscreenComponent( - current, - workInProgress, - _nextBaseLanes - ); - } else { - // This is the second render. The surrounding visible content has already - // committed. Now we resume rendering the hidden tree. - // Rendering at offscreen, so we can clear the base lanes. - var _nextState = { - baseLanes: NoLanes, - cachePool: null - }; - workInProgress.memoizedState = _nextState; + if (contextType === undefined) { + addendum = + " However, it is set to undefined. " + + "This can be caused by a typo or by mixing up named and default imports. " + + "This can also happen due to a circular dependency, so " + + "try moving the createContext() call to a separate file."; + } else if (typeof contextType !== "object") { + addendum = " However, it is set to a " + typeof contextType + "."; + } else if (contextType.$$typeof === REACT_PROVIDER_TYPE) { + addendum = " Did you accidentally pass the Context.Provider instead?"; + } else if (contextType._context !== undefined) { + // + addendum = " Did you accidentally pass the Context.Consumer instead?"; + } else { + addendum = + " However, it is set to an object with keys {" + + Object.keys(contextType).join(", ") + + "}."; + } - if (prevState !== null) { - pushHiddenContext(workInProgress, prevState); - } else { - reuseHiddenContextOnStack(workInProgress); + error( + "%s defines an invalid contextType. " + + "contextType should point to the Context object returned by React.createContext().%s", + getComponentNameFromType(ctor) || "Component", + addendum + ); } - - pushOffscreenSuspenseHandler(workInProgress); } + } + + if (typeof contextType === "object" && contextType !== null) { + context = readContext(contextType); } else { - // Rendering a visible tree. - if (prevState !== null) { - pushHiddenContext(workInProgress, prevState); - reuseSuspenseHandlerOnStack(workInProgress); // Since we're not hidden anymore, reset the state + unmaskedContext = getUnmaskedContext(workInProgress, ctor, true); + var contextTypes = ctor.contextTypes; + isLegacyContextConsumer = + contextTypes !== null && contextTypes !== undefined; + context = isLegacyContextConsumer + ? getMaskedContext(workInProgress, unmaskedContext) + : emptyContextObject; + } - workInProgress.memoizedState = null; - } else { - // to avoid a push/pop misalignment. + var instance = new ctor(props, context); // Instantiate twice to help detect side-effects. - reuseHiddenContextOnStack(workInProgress); - reuseSuspenseHandlerOnStack(workInProgress); + { + if (workInProgress.mode & StrictLegacyMode) { + setIsStrictModeForDevtools(true); + + try { + instance = new ctor(props, context); // eslint-disable-line no-new + } finally { + setIsStrictModeForDevtools(false); + } } } - reconcileChildren(current, workInProgress, nextChildren, renderLanes); - return workInProgress.child; -} - -function deferHiddenOffscreenComponent( - current, - workInProgress, - nextBaseLanes, - renderLanes -) { - var nextState = { - baseLanes: nextBaseLanes, - // Save the cache pool so we can resume later. - cachePool: null - }; - workInProgress.memoizedState = nextState; - // to avoid a push/pop misalignment. - - reuseHiddenContextOnStack(workInProgress); - pushOffscreenSuspenseHandler(workInProgress); + var state = (workInProgress.memoizedState = + instance.state !== null && instance.state !== undefined + ? instance.state + : null); + adoptClassInstance(workInProgress, instance); - return null; -} // Note: These happen to have identical begin phases, for now. We shouldn't hold -// ourselves to this constraint, though. If the behavior diverges, we should -// fork the function. + { + if (typeof ctor.getDerivedStateFromProps === "function" && state === null) { + var componentName = getComponentNameFromType(ctor) || "Component"; -var updateLegacyHiddenComponent = updateOffscreenComponent; + if (!didWarnAboutUninitializedState.has(componentName)) { + didWarnAboutUninitializedState.add(componentName); -function updateFragment(current, workInProgress, renderLanes) { - var nextChildren = workInProgress.pendingProps; - reconcileChildren(current, workInProgress, nextChildren, renderLanes); - return workInProgress.child; -} + error( + "`%s` uses `getDerivedStateFromProps` but its initial state is " + + "%s. This is not recommended. Instead, define the initial state by " + + "assigning an object to `this.state` in the constructor of `%s`. " + + "This ensures that `getDerivedStateFromProps` arguments have a consistent shape.", + componentName, + instance.state === null ? "null" : "undefined", + componentName + ); + } + } // If new component APIs are defined, "unsafe" lifecycles won't be called. + // Warn about these lifecycles if they are present. + // Don't warn about react-lifecycles-compat polyfilled methods though. -function updateMode(current, workInProgress, renderLanes) { - var nextChildren = workInProgress.pendingProps.children; - reconcileChildren(current, workInProgress, nextChildren, renderLanes); - return workInProgress.child; -} + if ( + typeof ctor.getDerivedStateFromProps === "function" || + typeof instance.getSnapshotBeforeUpdate === "function" + ) { + var foundWillMountName = null; + var foundWillReceivePropsName = null; + var foundWillUpdateName = null; -function updateProfiler(current, workInProgress, renderLanes) { - { - workInProgress.flags |= Update; + if ( + typeof instance.componentWillMount === "function" && + instance.componentWillMount.__suppressDeprecationWarning !== true + ) { + foundWillMountName = "componentWillMount"; + } else if (typeof instance.UNSAFE_componentWillMount === "function") { + foundWillMountName = "UNSAFE_componentWillMount"; + } - { - // Reset effect durations for the next eventual effect phase. - // These are reset during render to allow the DevTools commit hook a chance to read them, - var stateNode = workInProgress.stateNode; - stateNode.effectDuration = 0; - stateNode.passiveEffectDuration = 0; - } - } + if ( + typeof instance.componentWillReceiveProps === "function" && + instance.componentWillReceiveProps.__suppressDeprecationWarning !== true + ) { + foundWillReceivePropsName = "componentWillReceiveProps"; + } else if ( + typeof instance.UNSAFE_componentWillReceiveProps === "function" + ) { + foundWillReceivePropsName = "UNSAFE_componentWillReceiveProps"; + } - var nextProps = workInProgress.pendingProps; - var nextChildren = nextProps.children; - reconcileChildren(current, workInProgress, nextChildren, renderLanes); - return workInProgress.child; -} + if ( + typeof instance.componentWillUpdate === "function" && + instance.componentWillUpdate.__suppressDeprecationWarning !== true + ) { + foundWillUpdateName = "componentWillUpdate"; + } else if (typeof instance.UNSAFE_componentWillUpdate === "function") { + foundWillUpdateName = "UNSAFE_componentWillUpdate"; + } -function markRef$1(current, workInProgress) { - var ref = workInProgress.ref; + if ( + foundWillMountName !== null || + foundWillReceivePropsName !== null || + foundWillUpdateName !== null + ) { + var _componentName = getComponentNameFromType(ctor) || "Component"; - if ( - (current === null && ref !== null) || - (current !== null && current.ref !== ref) - ) { - // Schedule a Ref effect - workInProgress.flags |= Ref; - workInProgress.flags |= RefStatic; - } -} + var newApiName = + typeof ctor.getDerivedStateFromProps === "function" + ? "getDerivedStateFromProps()" + : "getSnapshotBeforeUpdate()"; -function updateFunctionComponent( - current, - workInProgress, - Component, - nextProps, - renderLanes -) { - { - if (workInProgress.type !== workInProgress.elementType) { - // Lazy component props can't be validated in createElement - // because they're only guaranteed to be resolved here. - var innerPropTypes = Component.propTypes; + if (!didWarnAboutLegacyLifecyclesAndDerivedState.has(_componentName)) { + didWarnAboutLegacyLifecyclesAndDerivedState.add(_componentName); - if (innerPropTypes) { - checkPropTypes( - innerPropTypes, - nextProps, // Resolved props - "prop", - getComponentNameFromType(Component) - ); + error( + "Unsafe legacy lifecycles will not be called for components using new component APIs.\n\n" + + "%s uses %s but also contains the following legacy lifecycles:%s%s%s\n\n" + + "The above lifecycles should be removed. Learn more about this warning here:\n" + + "https://reactjs.org/link/unsafe-component-lifecycles", + _componentName, + newApiName, + foundWillMountName !== null ? "\n " + foundWillMountName : "", + foundWillReceivePropsName !== null + ? "\n " + foundWillReceivePropsName + : "", + foundWillUpdateName !== null ? "\n " + foundWillUpdateName : "" + ); + } } } - } - - var context; + } // Cache unmasked context so we can avoid recreating masked context unless necessary. + // ReactFiberContext usually updates this cache but can't for newly-created instances. - { - var unmaskedContext = getUnmaskedContext(workInProgress, Component, true); - context = getMaskedContext(workInProgress, unmaskedContext); + if (isLegacyContextConsumer) { + cacheContext(workInProgress, unmaskedContext, context); } - var nextChildren; - prepareToReadContext(workInProgress, renderLanes); + return instance; +} - { - markComponentRenderStarted(workInProgress); - } +function callComponentWillMount(workInProgress, instance) { + var oldState = instance.state; - { - ReactCurrentOwner$2.current = workInProgress; - setIsRendering(true); - nextChildren = renderWithHooks( - current, - workInProgress, - Component, - nextProps, - context, - renderLanes - ); - setIsRendering(false); + if (typeof instance.componentWillMount === "function") { + instance.componentWillMount(); } - { - markComponentRenderStopped(); + if (typeof instance.UNSAFE_componentWillMount === "function") { + instance.UNSAFE_componentWillMount(); } - if (current !== null && !didReceiveUpdate) { - bailoutHooks(current, workInProgress, renderLanes); - return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes); + if (oldState !== instance.state) { + { + error( + "%s.componentWillMount(): Assigning directly to this.state is " + + "deprecated (except inside a component's " + + "constructor). Use setState instead.", + getComponentNameFromFiber(workInProgress) || "Component" + ); + } + + classComponentUpdater.enqueueReplaceState(instance, instance.state, null); } - - workInProgress.flags |= PerformedWork; - reconcileChildren(current, workInProgress, nextChildren, renderLanes); - return workInProgress.child; } -function replayFunctionComponent( - current, +function callComponentWillReceiveProps( workInProgress, - nextProps, - Component, - renderLanes + instance, + newProps, + nextContext ) { - // This function is used to replay a component that previously suspended, - // after its data resolves. It's a simplified version of - // updateFunctionComponent that reuses the hooks from the previous attempt. - var context; + var oldState = instance.state; - { - var unmaskedContext = getUnmaskedContext(workInProgress, Component, true); - context = getMaskedContext(workInProgress, unmaskedContext); + if (typeof instance.componentWillReceiveProps === "function") { + instance.componentWillReceiveProps(newProps, nextContext); } - prepareToReadContext(workInProgress, renderLanes); - - { - markComponentRenderStarted(workInProgress); + if (typeof instance.UNSAFE_componentWillReceiveProps === "function") { + instance.UNSAFE_componentWillReceiveProps(newProps, nextContext); } - var nextChildren = replaySuspendedComponentWithHooks( - current, - workInProgress, - Component, - nextProps, - context - ); + if (instance.state !== oldState) { + { + var componentName = + getComponentNameFromFiber(workInProgress) || "Component"; - { - markComponentRenderStopped(); + if (!didWarnAboutStateAssignmentForComponent.has(componentName)) { + didWarnAboutStateAssignmentForComponent.add(componentName); + + error( + "%s.componentWillReceiveProps(): Assigning directly to " + + "this.state is deprecated (except inside a component's " + + "constructor). Use setState instead.", + componentName + ); + } + } + + classComponentUpdater.enqueueReplaceState(instance, instance.state, null); } +} // Invokes the mount life-cycles on a previously never rendered instance. - if (current !== null && !didReceiveUpdate) { - bailoutHooks(current, workInProgress, renderLanes); - return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes); +function mountClassInstance(workInProgress, ctor, newProps, renderLanes) { + { + checkClassInstance(workInProgress, ctor, newProps); } - workInProgress.flags |= PerformedWork; - reconcileChildren(current, workInProgress, nextChildren, renderLanes); - return workInProgress.child; -} + var instance = workInProgress.stateNode; + instance.props = newProps; + instance.state = workInProgress.memoizedState; + instance.refs = {}; + initializeUpdateQueue(workInProgress); + var contextType = ctor.contextType; + + if (typeof contextType === "object" && contextType !== null) { + instance.context = readContext(contextType); + } else { + var unmaskedContext = getUnmaskedContext(workInProgress, ctor, true); + instance.context = getMaskedContext(workInProgress, unmaskedContext); + } -function updateClassComponent( - current, - workInProgress, - Component, - nextProps, - renderLanes -) { { - // This is used by DevTools to force a boundary to error. - switch (shouldError(workInProgress)) { - case false: { - var _instance = workInProgress.stateNode; - var ctor = workInProgress.type; // TODO This way of resetting the error boundary state is a hack. - // Is there a better way to do this? + if (instance.state === newProps) { + var componentName = getComponentNameFromType(ctor) || "Component"; - var tempInstance = new ctor( - workInProgress.memoizedProps, - _instance.context + if (!didWarnAboutDirectlyAssigningPropsToState.has(componentName)) { + didWarnAboutDirectlyAssigningPropsToState.add(componentName); + + error( + "%s: It is not recommended to assign props directly to state " + + "because updates to props won't be reflected in state. " + + "In most cases, it is better to use props directly.", + componentName ); - var state = tempInstance.state; + } + } - _instance.updater.enqueueSetState(_instance, state, null); + if (workInProgress.mode & StrictLegacyMode) { + ReactStrictModeWarnings.recordLegacyContextWarning( + workInProgress, + instance + ); + } - break; - } + ReactStrictModeWarnings.recordUnsafeLifecycleWarnings( + workInProgress, + instance + ); + } - case true: { - workInProgress.flags |= DidCapture; - workInProgress.flags |= ShouldCapture; // eslint-disable-next-line react-internal/prod-error-codes + instance.state = workInProgress.memoizedState; + var getDerivedStateFromProps = ctor.getDerivedStateFromProps; - var error$1 = new Error("Simulated error coming from DevTools"); - var lane = pickArbitraryLane(renderLanes); - workInProgress.lanes = mergeLanes(workInProgress.lanes, lane); // Schedule the error boundary to re-render using updated state + if (typeof getDerivedStateFromProps === "function") { + applyDerivedStateFromProps( + workInProgress, + ctor, + getDerivedStateFromProps, + newProps + ); + instance.state = workInProgress.memoizedState; + } // In order to support react-lifecycles-compat polyfilled components, + // Unsafe lifecycles should not be invoked for components using the new APIs. - var update = createClassErrorUpdate( - workInProgress, - createCapturedValueAtFiber(error$1, workInProgress), - lane - ); - enqueueCapturedUpdate(workInProgress, update); - break; - } - } + if ( + typeof ctor.getDerivedStateFromProps !== "function" && + typeof instance.getSnapshotBeforeUpdate !== "function" && + (typeof instance.UNSAFE_componentWillMount === "function" || + typeof instance.componentWillMount === "function") + ) { + callComponentWillMount(workInProgress, instance); // If we had additional state updates during this life-cycle, let's + // process them now. - if (workInProgress.type !== workInProgress.elementType) { - // Lazy component props can't be validated in createElement - // because they're only guaranteed to be resolved here. - var innerPropTypes = Component.propTypes; + processUpdateQueue(workInProgress, newProps, instance, renderLanes); + instance.state = workInProgress.memoizedState; + } - if (innerPropTypes) { - checkPropTypes( - innerPropTypes, - nextProps, // Resolved props - "prop", - getComponentNameFromType(Component) - ); - } - } - } // Push context providers early to prevent context stack mismatches. - // During mounting we don't know the child context yet as the instance doesn't exist. - // We will invalidate the child context in finishClassComponent() right after rendering. + if (typeof instance.componentDidMount === "function") { + var fiberFlags = Update | LayoutStatic; - var hasContext; + if ((workInProgress.mode & StrictEffectsMode) !== NoMode) { + fiberFlags |= MountLayoutDev; + } - if (isContextProvider(Component)) { - hasContext = true; - pushContextProvider(workInProgress); - } else { - hasContext = false; + workInProgress.flags |= fiberFlags; } +} - prepareToReadContext(workInProgress, renderLanes); +function resumeMountClassInstance(workInProgress, ctor, newProps, renderLanes) { var instance = workInProgress.stateNode; - var shouldUpdate; - - if (instance === null) { - resetSuspendedCurrentOnMountInLegacyMode(current, workInProgress); // In the initial pass we might need to construct the instance. + var oldProps = workInProgress.memoizedProps; + instance.props = oldProps; + var oldContext = instance.context; + var contextType = ctor.contextType; + var nextContext = emptyContextObject; - constructClassInstance(workInProgress, Component, nextProps); - mountClassInstance(workInProgress, Component, nextProps, renderLanes); - shouldUpdate = true; - } else if (current === null) { - // In a resume, we'll already have an instance we can reuse. - shouldUpdate = resumeMountClassInstance( - workInProgress, - Component, - nextProps, - renderLanes - ); + if (typeof contextType === "object" && contextType !== null) { + nextContext = readContext(contextType); } else { - shouldUpdate = updateClassInstance( - current, + var nextLegacyUnmaskedContext = getUnmaskedContext( workInProgress, - Component, - nextProps, - renderLanes + ctor, + true ); + nextContext = getMaskedContext(workInProgress, nextLegacyUnmaskedContext); } - var nextUnitOfWork = finishClassComponent( - current, - workInProgress, - Component, - shouldUpdate, - hasContext, - renderLanes - ); - - { - var inst = workInProgress.stateNode; - - if (shouldUpdate && inst.props !== nextProps) { - if (!didWarnAboutReassigningProps) { - error( - "It looks like %s is reassigning its own `this.props` while rendering. " + - "This is not supported and can lead to confusing bugs.", - getComponentNameFromFiber(workInProgress) || "a component" - ); - } + var getDerivedStateFromProps = ctor.getDerivedStateFromProps; + var hasNewLifecycles = + typeof getDerivedStateFromProps === "function" || + typeof instance.getSnapshotBeforeUpdate === "function"; // Note: During these life-cycles, instance.props/instance.state are what + // ever the previously attempted to render - not the "current". However, + // during componentDidUpdate we pass the "current" props. + // In order to support react-lifecycles-compat polyfilled components, + // Unsafe lifecycles should not be invoked for components using the new APIs. - didWarnAboutReassigningProps = true; + if ( + !hasNewLifecycles && + (typeof instance.UNSAFE_componentWillReceiveProps === "function" || + typeof instance.componentWillReceiveProps === "function") + ) { + if (oldProps !== newProps || oldContext !== nextContext) { + callComponentWillReceiveProps( + workInProgress, + instance, + newProps, + nextContext + ); } } - return nextUnitOfWork; -} + resetHasForceUpdateBeforeProcessing(); + var oldState = workInProgress.memoizedState; + var newState = (instance.state = oldState); + processUpdateQueue(workInProgress, newProps, instance, renderLanes); + newState = workInProgress.memoizedState; -function finishClassComponent( - current, - workInProgress, - Component, - shouldUpdate, - hasContext, - renderLanes -) { - // Refs should update even if shouldComponentUpdate returns false - markRef$1(current, workInProgress); - var didCaptureError = (workInProgress.flags & DidCapture) !== NoFlags$1; + if ( + oldProps === newProps && + oldState === newState && + !hasContextChanged() && + !checkHasForceUpdateAfterProcessing() + ) { + // If an update was already in progress, we should schedule an Update + // effect even though we're bailing out, so that cWU/cDU are called. + if (typeof instance.componentDidMount === "function") { + var fiberFlags = Update | LayoutStatic; - if (!shouldUpdate && !didCaptureError) { - // Context providers should defer to sCU for rendering - if (hasContext) { - invalidateContextProvider(workInProgress, Component, false); + if ((workInProgress.mode & StrictEffectsMode) !== NoMode) { + fiberFlags |= MountLayoutDev; + } + + workInProgress.flags |= fiberFlags; } - return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes); + return false; } - var instance = workInProgress.stateNode; // Rerender + if (typeof getDerivedStateFromProps === "function") { + applyDerivedStateFromProps( + workInProgress, + ctor, + getDerivedStateFromProps, + newProps + ); + newState = workInProgress.memoizedState; + } - ReactCurrentOwner$2.current = workInProgress; - var nextChildren; + var shouldUpdate = + checkHasForceUpdateAfterProcessing() || + checkShouldComponentUpdate( + workInProgress, + ctor, + oldProps, + newProps, + oldState, + newState, + nextContext + ); - if ( - didCaptureError && - typeof Component.getDerivedStateFromError !== "function" - ) { - // If we captured an error, but getDerivedStateFromError is not defined, - // unmount all the children. componentDidCatch will schedule an update to - // re-render a fallback. This is temporary until we migrate everyone to - // the new API. - // TODO: Warn in a future release. - nextChildren = null; + if (shouldUpdate) { + // In order to support react-lifecycles-compat polyfilled components, + // Unsafe lifecycles should not be invoked for components using the new APIs. + if ( + !hasNewLifecycles && + (typeof instance.UNSAFE_componentWillMount === "function" || + typeof instance.componentWillMount === "function") + ) { + if (typeof instance.componentWillMount === "function") { + instance.componentWillMount(); + } - { - stopProfilerTimerIfRunning(); - } - } else { - { - markComponentRenderStarted(workInProgress); + if (typeof instance.UNSAFE_componentWillMount === "function") { + instance.UNSAFE_componentWillMount(); + } } - { - setIsRendering(true); - nextChildren = instance.render(); - - if (workInProgress.mode & StrictLegacyMode) { - setIsStrictModeForDevtools(true); + if (typeof instance.componentDidMount === "function") { + var _fiberFlags = Update | LayoutStatic; - try { - instance.render(); - } finally { - setIsStrictModeForDevtools(false); - } + if ((workInProgress.mode & StrictEffectsMode) !== NoMode) { + _fiberFlags |= MountLayoutDev; } - setIsRendering(false); + workInProgress.flags |= _fiberFlags; } + } else { + // If an update was already in progress, we should schedule an Update + // effect even though we're bailing out, so that cWU/cDU are called. + if (typeof instance.componentDidMount === "function") { + var _fiberFlags2 = Update | LayoutStatic; - { - markComponentRenderStopped(); - } - } // React DevTools reads this flag. + if ((workInProgress.mode & StrictEffectsMode) !== NoMode) { + _fiberFlags2 |= MountLayoutDev; + } - workInProgress.flags |= PerformedWork; + workInProgress.flags |= _fiberFlags2; + } // If shouldComponentUpdate returned false, we should still update the + // memoized state to indicate that this work can be reused. - if (current !== null && didCaptureError) { - // If we're recovering from an error, reconcile without reusing any of - // the existing children. Conceptually, the normal children and the children - // that are shown on error are two different sets, so we shouldn't reuse - // normal children even if their identities match. - forceUnmountCurrentAndReconcile( - current, - workInProgress, - nextChildren, - renderLanes - ); - } else { - reconcileChildren(current, workInProgress, nextChildren, renderLanes); - } // Memoize state using the values we just used to render. - // TODO: Restructure so we never read values from the instance. + workInProgress.memoizedProps = newProps; + workInProgress.memoizedState = newState; + } // Update the existing instance's state, props, and context pointers even + // if shouldComponentUpdate returns false. - workInProgress.memoizedState = instance.state; // The context might have changed so we need to recalculate it. + instance.props = newProps; + instance.state = newState; + instance.context = nextContext; + return shouldUpdate; +} // Invokes the update life-cycles and returns false if it shouldn't rerender. - if (hasContext) { - invalidateContextProvider(workInProgress, Component, true); - } +function updateClassInstance( + current, + workInProgress, + ctor, + newProps, + renderLanes +) { + var instance = workInProgress.stateNode; + cloneUpdateQueue(current, workInProgress); + var unresolvedOldProps = workInProgress.memoizedProps; + var oldProps = + workInProgress.type === workInProgress.elementType + ? unresolvedOldProps + : resolveDefaultProps(workInProgress.type, unresolvedOldProps); + instance.props = oldProps; + var unresolvedNewProps = workInProgress.pendingProps; + var oldContext = instance.context; + var contextType = ctor.contextType; + var nextContext = emptyContextObject; - return workInProgress.child; -} + if (typeof contextType === "object" && contextType !== null) { + nextContext = readContext(contextType); + } else { + var nextUnmaskedContext = getUnmaskedContext(workInProgress, ctor, true); + nextContext = getMaskedContext(workInProgress, nextUnmaskedContext); + } -function pushHostRootContext(workInProgress) { - var root = workInProgress.stateNode; + var getDerivedStateFromProps = ctor.getDerivedStateFromProps; + var hasNewLifecycles = + typeof getDerivedStateFromProps === "function" || + typeof instance.getSnapshotBeforeUpdate === "function"; // Note: During these life-cycles, instance.props/instance.state are what + // ever the previously attempted to render - not the "current". However, + // during componentDidUpdate we pass the "current" props. + // In order to support react-lifecycles-compat polyfilled components, + // Unsafe lifecycles should not be invoked for components using the new APIs. - if (root.pendingContext) { - pushTopLevelContextObject( - workInProgress, - root.pendingContext, - root.pendingContext !== root.context - ); - } else if (root.context) { - // Should always be set - pushTopLevelContextObject(workInProgress, root.context, false); + if ( + !hasNewLifecycles && + (typeof instance.UNSAFE_componentWillReceiveProps === "function" || + typeof instance.componentWillReceiveProps === "function") + ) { + if ( + unresolvedOldProps !== unresolvedNewProps || + oldContext !== nextContext + ) { + callComponentWillReceiveProps( + workInProgress, + instance, + newProps, + nextContext + ); + } } - pushHostContainer(workInProgress, root.containerInfo); -} + resetHasForceUpdateBeforeProcessing(); + var oldState = workInProgress.memoizedState; + var newState = (instance.state = oldState); + processUpdateQueue(workInProgress, newProps, instance, renderLanes); + newState = workInProgress.memoizedState; + + if ( + unresolvedOldProps === unresolvedNewProps && + oldState === newState && + !hasContextChanged() && + !checkHasForceUpdateAfterProcessing() && + !enableLazyContextPropagation + ) { + // If an update was already in progress, we should schedule an Update + // effect even though we're bailing out, so that cWU/cDU are called. + if (typeof instance.componentDidUpdate === "function") { + if ( + unresolvedOldProps !== current.memoizedProps || + oldState !== current.memoizedState + ) { + workInProgress.flags |= Update; + } + } + + if (typeof instance.getSnapshotBeforeUpdate === "function") { + if ( + unresolvedOldProps !== current.memoizedProps || + oldState !== current.memoizedState + ) { + workInProgress.flags |= Snapshot; + } + } -function updateHostRoot(current, workInProgress, renderLanes) { - pushHostRootContext(workInProgress); + return false; + } - if (current === null) { - throw new Error("Should have a current fiber. This is a bug in React."); + if (typeof getDerivedStateFromProps === "function") { + applyDerivedStateFromProps( + workInProgress, + ctor, + getDerivedStateFromProps, + newProps + ); + newState = workInProgress.memoizedState; } - var nextProps = workInProgress.pendingProps; - var prevState = workInProgress.memoizedState; - var prevChildren = prevState.element; - cloneUpdateQueue(current, workInProgress); - processUpdateQueue(workInProgress, nextProps, null, renderLanes); - var nextState = workInProgress.memoizedState; - // being called "element". + var shouldUpdate = + checkHasForceUpdateAfterProcessing() || + checkShouldComponentUpdate( + workInProgress, + ctor, + oldProps, + newProps, + oldState, + newState, + nextContext + ) || // TODO: In some cases, we'll end up checking if context has changed twice, + // both before and after `shouldComponentUpdate` has been called. Not ideal, + // but I'm loath to refactor this function. This only happens for memoized + // components so it's not that common. + enableLazyContextPropagation; - var nextChildren = nextState.element; + if (shouldUpdate) { + // In order to support react-lifecycles-compat polyfilled components, + // Unsafe lifecycles should not be invoked for components using the new APIs. + if ( + !hasNewLifecycles && + (typeof instance.UNSAFE_componentWillUpdate === "function" || + typeof instance.componentWillUpdate === "function") + ) { + if (typeof instance.componentWillUpdate === "function") { + instance.componentWillUpdate(newProps, newState, nextContext); + } - { - if (nextChildren === prevChildren) { - return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes); + if (typeof instance.UNSAFE_componentWillUpdate === "function") { + instance.UNSAFE_componentWillUpdate(newProps, newState, nextContext); + } } - reconcileChildren(current, workInProgress, nextChildren, renderLanes); - } + if (typeof instance.componentDidUpdate === "function") { + workInProgress.flags |= Update; + } - return workInProgress.child; -} + if (typeof instance.getSnapshotBeforeUpdate === "function") { + workInProgress.flags |= Snapshot; + } + } else { + // If an update was already in progress, we should schedule an Update + // effect even though we're bailing out, so that cWU/cDU are called. + if (typeof instance.componentDidUpdate === "function") { + if ( + unresolvedOldProps !== current.memoizedProps || + oldState !== current.memoizedState + ) { + workInProgress.flags |= Update; + } + } -function updateHostComponent$1(current, workInProgress, renderLanes) { - pushHostContext(workInProgress); - var nextProps = workInProgress.pendingProps; - var prevProps = current !== null ? current.memoizedProps : null; - var nextChildren = nextProps.children; + if (typeof instance.getSnapshotBeforeUpdate === "function") { + if ( + unresolvedOldProps !== current.memoizedProps || + oldState !== current.memoizedState + ) { + workInProgress.flags |= Snapshot; + } + } // If shouldComponentUpdate returned false, we should still update the + // memoized props/state to indicate that this work can be reused. - if (prevProps !== null && shouldSetTextContent()) { - // If we're switching from a direct text child to a normal child, or to - // empty, we need to schedule the text content to be reset. - workInProgress.flags |= ContentReset; - } + workInProgress.memoizedProps = newProps; + workInProgress.memoizedState = newState; + } // Update the existing instance's state, props, and context pointers even + // if shouldComponentUpdate returns false. - markRef$1(current, workInProgress); - reconcileChildren(current, workInProgress, nextChildren, renderLanes); - return workInProgress.child; + instance.props = newProps; + instance.state = newState; + instance.context = nextContext; + return shouldUpdate; } -function updateHostText$1(current, workInProgress) { - // immediately after. - - return null; +function createCapturedValueAtFiber(value, source) { + // If the value is an error, call this function immediately after it is thrown + // so the stack is accurate. + return { + value: value, + source: source, + stack: getStackByFiberInDevAndProd(source), + digest: null + }; +} +function createCapturedValue(value, digest, stack) { + return { + value: value, + source: null, + stack: stack != null ? stack : null, + digest: digest != null ? digest : null + }; } -function mountLazyComponent( - _current, - workInProgress, - elementType, - renderLanes +if ( + typeof ReactNativePrivateInterface.ReactFiberErrorDialog.showErrorDialog !== + "function" ) { - resetSuspendedCurrentOnMountInLegacyMode(_current, workInProgress); - var props = workInProgress.pendingProps; - var lazyComponent = elementType; - var payload = lazyComponent._payload; - var init = lazyComponent._init; - var Component = init(payload); // Store the unwrapped component in the type. - - workInProgress.type = Component; - var resolvedTag = (workInProgress.tag = resolveLazyComponentTag(Component)); - var resolvedProps = resolveDefaultProps(Component, props); - var child; - - switch (resolvedTag) { - case FunctionComponent: { - { - validateFunctionComponentInDev(workInProgress, Component); - workInProgress.type = Component = - resolveFunctionForHotReloading(Component); - } + throw new Error( + "Expected ReactFiberErrorDialog.showErrorDialog to be a function." + ); +} - child = updateFunctionComponent( - null, - workInProgress, - Component, - resolvedProps, - renderLanes - ); - return child; - } +function showErrorDialog(boundary, errorInfo) { + var capturedError = { + componentStack: errorInfo.stack !== null ? errorInfo.stack : "", + error: errorInfo.value, + errorBoundary: + boundary !== null && boundary.tag === ClassComponent + ? boundary.stateNode + : null + }; + return ReactNativePrivateInterface.ReactFiberErrorDialog.showErrorDialog( + capturedError + ); +} - case ClassComponent: { - { - workInProgress.type = Component = - resolveClassForHotReloading(Component); - } +function logCapturedError(boundary, errorInfo) { + try { + var logError = showErrorDialog(boundary, errorInfo); // Allow injected showErrorDialog() to prevent default console.error logging. + // This enables renderers like ReactNative to better manage redbox behavior. - child = updateClassComponent( - null, - workInProgress, - Component, - resolvedProps, - renderLanes - ); - return child; + if (logError === false) { + return; } - case ForwardRef: { - { - workInProgress.type = Component = - resolveForwardRefForHotReloading(Component); - } + var error = errorInfo.value; - child = updateForwardRef( - null, - workInProgress, - Component, - resolvedProps, - renderLanes - ); - return child; - } + if (true) { + var source = errorInfo.source; + var stack = errorInfo.stack; + var componentStack = stack !== null ? stack : ""; // Browsers support silencing uncaught errors by calling + // `preventDefault()` in window `error` handler. + // We record this information as an expando on the error. - case MemoComponent: { - { - if (workInProgress.type !== workInProgress.elementType) { - var outerPropTypes = Component.propTypes; + if (error != null && error._suppressLogging) { + if (boundary.tag === ClassComponent) { + // The error is recoverable and was silenced. + // Ignore it and don't print the stack addendum. + // This is handy for testing error boundaries without noise. + return; + } // The error is fatal. Since the silencing might have + // been accidental, we'll surface it anyway. + // However, the browser would have silenced the original error + // so we'll print it first, and then print the stack addendum. - if (outerPropTypes) { - checkPropTypes( - outerPropTypes, - resolvedProps, // Resolved for outer only - "prop", - getComponentNameFromType(Component) - ); - } - } + console["error"](error); // Don't transform to our wrapper + // For a more detailed description of this block, see: + // https://github.com/facebook/react/pull/13384 } - child = updateMemoComponent( - null, - workInProgress, - Component, - resolveDefaultProps(Component.type, resolvedProps), // The inner type can have defaults too - renderLanes - ); - return child; - } - } + var componentName = source ? getComponentNameFromFiber(source) : null; + var componentNameMessage = componentName + ? "The above error occurred in the <" + componentName + "> component:" + : "The above error occurred in one of your React components:"; + var errorBoundaryMessage; + + if (boundary.tag === HostRoot) { + errorBoundaryMessage = + "Consider adding an error boundary to your tree to customize error handling behavior.\n" + + "Visit https://reactjs.org/link/error-boundaries to learn more about error boundaries."; + } else { + var errorBoundaryName = + getComponentNameFromFiber(boundary) || "Anonymous"; + errorBoundaryMessage = + "React will try to recreate this component tree from scratch " + + ("using the error boundary you provided, " + errorBoundaryName + "."); + } - var hint = ""; + var combinedMessage = + componentNameMessage + + "\n" + + componentStack + + "\n\n" + + ("" + errorBoundaryMessage); // In development, we provide our own message with just the component stack. + // We don't include the original error message and JS stack because the browser + // has already printed it. Even if the application swallows the error, it is still + // displayed by the browser thanks to the DEV-only fake event trick in ReactErrorUtils. - { - if ( - Component !== null && - typeof Component === "object" && - Component.$$typeof === REACT_LAZY_TYPE - ) { - hint = " Did you wrap a component in React.lazy() more than once?"; + console["error"](combinedMessage); // Don't transform to our wrapper } - } // This message intentionally doesn't mention ForwardRef or MemoComponent - // because the fact that it's a separate type of work is an - // implementation detail. - - throw new Error( - "Element type is invalid. Received a promise that resolves to: " + - Component + - ". " + - ("Lazy element type must resolve to a class or function." + hint) - ); + } catch (e) { + // This method must not throw, or React internal state will get messed up. + // If console.error is overridden, or logCapturedError() shows a dialog that throws, + // we want to report this error outside of the normal stack as a last resort. + // https://github.com/facebook/react/issues/13188 + setTimeout(function () { + throw e; + }); + } } -function mountIncompleteClassComponent( - _current, - workInProgress, - Component, - nextProps, - renderLanes -) { - resetSuspendedCurrentOnMountInLegacyMode(_current, workInProgress); // Promote the fiber to a class and try rendering again. +function createRootErrorUpdate(fiber, errorInfo, lane) { + var update = createUpdate(lane); // Unmount the root by rendering null. - workInProgress.tag = ClassComponent; // The rest of this function is a fork of `updateClassComponent` - // Push context providers early to prevent context stack mismatches. - // During mounting we don't know the child context yet as the instance doesn't exist. - // We will invalidate the child context in finishClassComponent() right after rendering. + update.tag = CaptureUpdate; // Caution: React DevTools currently depends on this property + // being called "element". - var hasContext; + update.payload = { + element: null + }; + var error = errorInfo.value; - if (isContextProvider(Component)) { - hasContext = true; - pushContextProvider(workInProgress); - } else { - hasContext = false; - } + update.callback = function () { + onUncaughtError(error); + logCapturedError(fiber, errorInfo); + }; - prepareToReadContext(workInProgress, renderLanes); - constructClassInstance(workInProgress, Component, nextProps); - mountClassInstance(workInProgress, Component, nextProps, renderLanes); - return finishClassComponent( - null, - workInProgress, - Component, - true, - hasContext, - renderLanes - ); + return update; } -function mountIndeterminateComponent( - _current, - workInProgress, - Component, - renderLanes -) { - resetSuspendedCurrentOnMountInLegacyMode(_current, workInProgress); - var props = workInProgress.pendingProps; - var context; - - { - var unmaskedContext = getUnmaskedContext(workInProgress, Component, false); - context = getMaskedContext(workInProgress, unmaskedContext); - } - - prepareToReadContext(workInProgress, renderLanes); - var value; - - { - markComponentRenderStarted(workInProgress); - } +function createClassErrorUpdate(fiber, errorInfo, lane) { + var update = createUpdate(lane); + update.tag = CaptureUpdate; + var getDerivedStateFromError = fiber.type.getDerivedStateFromError; - { - if ( - Component.prototype && - typeof Component.prototype.render === "function" - ) { - var componentName = getComponentNameFromType(Component) || "Unknown"; + if (typeof getDerivedStateFromError === "function") { + var error$1 = errorInfo.value; - if (!didWarnAboutBadClass[componentName]) { - error( - "The <%s /> component appears to have a render method, but doesn't extend React.Component. " + - "This is likely to cause errors. Change %s to extend React.Component instead.", - componentName, - componentName - ); + update.payload = function () { + return getDerivedStateFromError(error$1); + }; - didWarnAboutBadClass[componentName] = true; + update.callback = function () { + { + markFailedErrorBoundaryForHotReloading(fiber); } - } - - if (workInProgress.mode & StrictLegacyMode) { - ReactStrictModeWarnings.recordLegacyContextWarning(workInProgress, null); - } - setIsRendering(true); - ReactCurrentOwner$2.current = workInProgress; - value = renderWithHooks( - null, - workInProgress, - Component, - props, - context, - renderLanes - ); - setIsRendering(false); + logCapturedError(fiber, errorInfo); + }; } - { - markComponentRenderStopped(); - } // React DevTools reads this flag. - - workInProgress.flags |= PerformedWork; + var inst = fiber.stateNode; - { - // Support for module components is deprecated and is removed behind a flag. - // Whether or not it would crash later, we want to show a good message in DEV first. - if ( - typeof value === "object" && - value !== null && - typeof value.render === "function" && - value.$$typeof === undefined - ) { - var _componentName = getComponentNameFromType(Component) || "Unknown"; + if (inst !== null && typeof inst.componentDidCatch === "function") { + // $FlowFixMe[missing-this-annot] + update.callback = function callback() { + { + markFailedErrorBoundaryForHotReloading(fiber); + } - if (!didWarnAboutModulePatternComponent[_componentName]) { - error( - "The <%s /> component appears to be a function component that returns a class instance. " + - "Change %s to a class that extends React.Component instead. " + - "If you can't use a class try assigning the prototype on the function as a workaround. " + - "`%s.prototype = React.Component.prototype`. Don't use an arrow function since it " + - "cannot be called with `new` by React.", - _componentName, - _componentName, - _componentName - ); + logCapturedError(fiber, errorInfo); - didWarnAboutModulePatternComponent[_componentName] = true; + if (typeof getDerivedStateFromError !== "function") { + // To preserve the preexisting retry behavior of error boundaries, + // we keep track of which ones already failed during this batch. + // This gets reset before we yield back to the browser. + // TODO: Warn in strict mode if getDerivedStateFromError is + // not defined. + markLegacyErrorBoundaryAsFailed(this); } - } - } - - if ( - // Run these checks in production only if the flag is off. - // Eventually we'll delete this branch altogether. - typeof value === "object" && - value !== null && - typeof value.render === "function" && - value.$$typeof === undefined - ) { - { - var _componentName2 = getComponentNameFromType(Component) || "Unknown"; - if (!didWarnAboutModulePatternComponent[_componentName2]) { - error( - "The <%s /> component appears to be a function component that returns a class instance. " + - "Change %s to a class that extends React.Component instead. " + - "If you can't use a class try assigning the prototype on the function as a workaround. " + - "`%s.prototype = React.Component.prototype`. Don't use an arrow function since it " + - "cannot be called with `new` by React.", - _componentName2, - _componentName2, - _componentName2 - ); + var error$1 = errorInfo.value; + var stack = errorInfo.stack; + this.componentDidCatch(error$1, { + componentStack: stack !== null ? stack : "" + }); - didWarnAboutModulePatternComponent[_componentName2] = true; + { + if (typeof getDerivedStateFromError !== "function") { + // If componentDidCatch is the only error boundary method defined, + // then it needs to call setState to recover from errors. + // If no state update is scheduled then the boundary will swallow the error. + if (!includesSomeLane(fiber.lanes, SyncLane)) { + error( + "%s: Error boundaries should implement getDerivedStateFromError(). " + + "In that method, return a state update to display an error message or fallback UI.", + getComponentNameFromFiber(fiber) || "Unknown" + ); + } + } } - } // Proceed under the assumption that this is a class instance + }; + } - workInProgress.tag = ClassComponent; // Throw out any hooks that were used. + return update; +} - workInProgress.memoizedState = null; - workInProgress.updateQueue = null; // Push context providers early to prevent context stack mismatches. - // During mounting we don't know the child context yet as the instance doesn't exist. - // We will invalidate the child context in finishClassComponent() right after rendering. +function resetSuspendedComponent(sourceFiber, rootRenderLanes) { + // A legacy mode Suspense quirk, only relevant to hook components. - var hasContext = false; + var tag = sourceFiber.tag; - if (isContextProvider(Component)) { - hasContext = true; - pushContextProvider(workInProgress); + if ( + (sourceFiber.mode & ConcurrentMode) === NoMode && + (tag === FunctionComponent || + tag === ForwardRef || + tag === SimpleMemoComponent) + ) { + var currentSource = sourceFiber.alternate; + + if (currentSource) { + sourceFiber.updateQueue = currentSource.updateQueue; + sourceFiber.memoizedState = currentSource.memoizedState; + sourceFiber.lanes = currentSource.lanes; } else { - hasContext = false; + sourceFiber.updateQueue = null; + sourceFiber.memoizedState = null; } + } +} - workInProgress.memoizedState = - value.state !== null && value.state !== undefined ? value.state : null; - initializeUpdateQueue(workInProgress); - adoptClassInstance(workInProgress, value); - mountClassInstance(workInProgress, Component, props, renderLanes); - return finishClassComponent( - null, - workInProgress, - Component, - true, - hasContext, - renderLanes - ); - } else { - // Proceed under the assumption that this is a function component - workInProgress.tag = FunctionComponent; +function markSuspenseBoundaryShouldCapture( + suspenseBoundary, + returnFiber, + sourceFiber, + root, + rootRenderLanes +) { + // This marks a Suspense boundary so that when we're unwinding the stack, + // it captures the suspended "exception" and does a second (fallback) pass. + if ((suspenseBoundary.mode & ConcurrentMode) === NoMode) { + // Legacy Mode Suspense + // + // If the boundary is in legacy mode, we should *not* + // suspend the commit. Pretend as if the suspended component rendered + // null and keep rendering. When the Suspense boundary completes, + // we'll do a second pass to render the fallback. + if (suspenseBoundary === returnFiber) { + // Special case where we suspended while reconciling the children of + // a Suspense boundary's inner Offscreen wrapper fiber. This happens + // when a React.lazy component is a direct child of a + // Suspense boundary. + // + // Suspense boundaries are implemented as multiple fibers, but they + // are a single conceptual unit. The legacy mode behavior where we + // pretend the suspended fiber committed as `null` won't work, + // because in this case the "suspended" fiber is the inner + // Offscreen wrapper. + // + // Because the contents of the boundary haven't started rendering + // yet (i.e. nothing in the tree has partially rendered) we can + // switch to the regular, concurrent mode behavior: mark the + // boundary with ShouldCapture and enter the unwind phase. + suspenseBoundary.flags |= ShouldCapture; + } else { + suspenseBoundary.flags |= DidCapture; + sourceFiber.flags |= ForceUpdateForLegacySuspense; // We're going to commit this fiber even though it didn't complete. + // But we shouldn't call any lifecycle methods or callbacks. Remove + // all lifecycle effect tags. - reconcileChildren(null, workInProgress, value, renderLanes); + sourceFiber.flags &= ~(LifecycleEffectMask | Incomplete); - { - validateFunctionComponentInDev(workInProgress, Component); - } + if (sourceFiber.tag === ClassComponent) { + var currentSourceFiber = sourceFiber.alternate; - return workInProgress.child; - } -} + if (currentSourceFiber === null) { + // This is a new mount. Change the tag so it's not mistaken for a + // completed class component. For example, we should not call + // componentWillUnmount if it is deleted. + sourceFiber.tag = IncompleteClassComponent; + } else { + // When we try rendering again, we should not reuse the current fiber, + // since it's known to be in an inconsistent state. Use a force update to + // prevent a bail out. + var update = createUpdate(SyncLane); + update.tag = ForceUpdate; + enqueueUpdate(sourceFiber, update, SyncLane); + } + } // The source fiber did not complete. Mark it with Sync priority to + // indicate that it still has pending work. -function validateFunctionComponentInDev(workInProgress, Component) { - { - if (Component) { - if (Component.childContextTypes) { - error( - "%s(...): childContextTypes cannot be defined on a function component.", - Component.displayName || Component.name || "Component" - ); - } + sourceFiber.lanes = mergeLanes(sourceFiber.lanes, SyncLane); } - if (workInProgress.ref !== null) { - var info = ""; - var ownerName = getCurrentFiberOwnerNameInDevOrNull(); - - if (ownerName) { - info += "\n\nCheck the render method of `" + ownerName + "`."; - } + return suspenseBoundary; + } // Confirmed that the boundary is in a concurrent mode tree. Continue + // with the normal suspend path. + // + // After this we'll use a set of heuristics to determine whether this + // render pass will run to completion or restart or "suspend" the commit. + // The actual logic for this is spread out in different places. + // + // This first principle is that if we're going to suspend when we complete + // a root, then we should also restart if we get an update or ping that + // might unsuspend it, and vice versa. The only reason to suspend is + // because you think you might want to restart before committing. However, + // it doesn't make sense to restart only while in the period we're suspended. + // + // Restarting too aggressively is also not good because it starves out any + // intermediate loading state. So we use heuristics to determine when. + // Suspense Heuristics + // + // If nothing threw a Promise or all the same fallbacks are already showing, + // then don't suspend/restart. + // + // If this is an initial render of a new tree of Suspense boundaries and + // those trigger a fallback, then don't suspend/restart. We want to ensure + // that we can show the initial loading state as quickly as possible. + // + // If we hit a "Delayed" case, such as when we'd switch from content back into + // a fallback, then we should always suspend/restart. Transitions apply + // to this case. If none is defined, JND is used instead. + // + // If we're already showing a fallback and it gets "retried", allowing us to show + // another level, but there's still an inner boundary that would show a fallback, + // then we suspend/restart for 500ms since the last time we showed a fallback + // anywhere in the tree. This effectively throttles progressive loading into a + // consistent train of commits. This also gives us an opportunity to restart to + // get to the completed state slightly earlier. + // + // If there's ambiguity due to batching it's resolved in preference of: + // 1) "delayed", 2) "initial render", 3) "retry". + // + // We want to ensure that a "busy" state doesn't get force committed. We want to + // ensure that new initial loading states can commit as soon as possible. - var warningKey = ownerName || ""; - var debugSource = workInProgress._debugSource; + suspenseBoundary.flags |= ShouldCapture; // TODO: I think we can remove this, since we now use `DidCapture` in + // the begin phase to prevent an early bailout. - if (debugSource) { - warningKey = debugSource.fileName + ":" + debugSource.lineNumber; - } + suspenseBoundary.lanes = rootRenderLanes; + return suspenseBoundary; +} - if (!didWarnAboutFunctionRefs[warningKey]) { - didWarnAboutFunctionRefs[warningKey] = true; +function throwException( + root, + returnFiber, + sourceFiber, + value, + rootRenderLanes +) { + // The source fiber did not complete. + sourceFiber.flags |= Incomplete; - error( - "Function components cannot be given refs. " + - "Attempts to access this ref will fail. " + - "Did you mean to use React.forwardRef()?%s", - info - ); - } + { + if (isDevToolsPresent) { + // If we have pending work still, restore the original updaters + restorePendingUpdaters(root, rootRenderLanes); } + } - if (Component.defaultProps !== undefined) { - var componentName = getComponentNameFromType(Component) || "Unknown"; - - if (!didWarnAboutDefaultPropsOnFunctionComponent[componentName]) { - error( - "%s: Support for defaultProps will be removed from function components " + - "in a future major release. Use JavaScript default parameters instead.", - componentName - ); + if ( + value !== null && + typeof value === "object" && + typeof value.then === "function" + ) { + // This is a wakeable. The component suspended. + var wakeable = value; + resetSuspendedComponent(sourceFiber); - didWarnAboutDefaultPropsOnFunctionComponent[componentName] = true; - } - } + var suspenseBoundary = getSuspenseHandler(); - if (typeof Component.getDerivedStateFromProps === "function") { - var _componentName3 = getComponentNameFromType(Component) || "Unknown"; + if (suspenseBoundary !== null) { + switch (suspenseBoundary.tag) { + case SuspenseComponent: { + // If this suspense boundary is not already showing a fallback, mark + // the in-progress render as suspended. We try to perform this logic + // as soon as soon as possible during the render phase, so the work + // loop can know things like whether it's OK to switch to other tasks, + // or whether it can wait for data to resolve before continuing. + // TODO: Most of these checks are already performed when entering a + // Suspense boundary. We should track the information on the stack so + // we don't have to recompute it on demand. This would also allow us + // to unify with `use` which needs to perform this logic even sooner, + // before `throwException` is called. + if (sourceFiber.mode & ConcurrentMode) { + if (getShellBoundary() === null) { + // Suspended in the "shell" of the app. This is an undesirable + // loading state. We should avoid committing this tree. + renderDidSuspendDelayIfPossible(); + } else { + // If we suspended deeper than the shell, we don't need to delay + // the commmit. However, we still call renderDidSuspend if this is + // a new boundary, to tell the work loop that a new fallback has + // appeared during this render. + // TODO: Theoretically we should be able to delete this branch. + // It's currently used for two things: 1) to throttle the + // appearance of successive loading states, and 2) in + // SuspenseList, to determine whether the children include any + // pending fallbacks. For 1, we should apply throttling to all + // retries, not just ones that render an additional fallback. For + // 2, we should check subtreeFlags instead. Then we can delete + // this branch. + var current = suspenseBoundary.alternate; - if (!didWarnAboutGetDerivedStateOnFunctionComponent[_componentName3]) { - error( - "%s: Function components do not support getDerivedStateFromProps.", - _componentName3 - ); + if (current === null) { + renderDidSuspend(); + } + } + } - didWarnAboutGetDerivedStateOnFunctionComponent[_componentName3] = true; - } - } + suspenseBoundary.flags &= ~ForceClientRender; + markSuspenseBoundaryShouldCapture( + suspenseBoundary, + returnFiber, + sourceFiber, + root, + rootRenderLanes + ); // Retry listener + // + // If the fallback does commit, we need to attach a different type of + // listener. This one schedules an update on the Suspense boundary to + // turn the fallback state off. + // + // Stash the wakeable on the boundary fiber so we can access it in the + // commit phase. + // + // When the wakeable resolves, we'll attempt to render the boundary + // again ("retry"). + // Check if this is a Suspensey resource. We do not attach retry + // listeners to these, because we don't actually need them for + // rendering. Only for committing. Instead, if a fallback commits + // and the only thing that suspended was a Suspensey resource, we + // retry immediately. + // TODO: Refactor throwException so that we don't have to do this type + // check. The caller already knows what the cause was. - if ( - typeof Component.contextType === "object" && - Component.contextType !== null - ) { - var _componentName4 = getComponentNameFromType(Component) || "Unknown"; + var isSuspenseyResource = wakeable === noopSuspenseyCommitThenable; - if (!didWarnAboutContextTypeOnFunctionComponent[_componentName4]) { - error( - "%s: Function components do not support contextType.", - _componentName4 - ); + if (isSuspenseyResource) { + suspenseBoundary.flags |= ScheduleRetry; + } else { + var retryQueue = suspenseBoundary.updateQueue; - didWarnAboutContextTypeOnFunctionComponent[_componentName4] = true; - } - } - } -} + if (retryQueue === null) { + suspenseBoundary.updateQueue = new Set([wakeable]); + } else { + retryQueue.add(wakeable); + } + } -var SUSPENDED_MARKER = { - dehydrated: null, - treeContext: null, - retryLane: NoLane -}; + break; + } -function mountSuspenseOffscreenState(renderLanes) { - return { - baseLanes: renderLanes, - cachePool: getSuspendedCache() - }; -} + case OffscreenComponent: { + if (suspenseBoundary.mode & ConcurrentMode) { + suspenseBoundary.flags |= ShouldCapture; -function updateSuspenseOffscreenState(prevOffscreenState, renderLanes) { - var cachePool = null; + var _isSuspenseyResource = wakeable === noopSuspenseyCommitThenable; - return { - baseLanes: mergeLanes(prevOffscreenState.baseLanes, renderLanes), - cachePool: cachePool - }; -} // TODO: Probably should inline this back + if (_isSuspenseyResource) { + suspenseBoundary.flags |= ScheduleRetry; + } else { + var offscreenQueue = suspenseBoundary.updateQueue; -function shouldRemainOnFallback(current, workInProgress, renderLanes) { - // If we're already showing a fallback, there are cases where we need to - // remain on that fallback regardless of whether the content has resolved. - // For example, SuspenseList coordinates when nested content appears. - // TODO: For compatibility with offscreen prerendering, this should also check - // whether the current fiber (if it exists) was visible in the previous tree. - if (current !== null) { - var suspenseState = current.memoizedState; + if (offscreenQueue === null) { + var newOffscreenQueue = { + transitions: null, + markerInstances: null, + retryQueue: new Set([wakeable]) + }; + suspenseBoundary.updateQueue = newOffscreenQueue; + } else { + var _retryQueue = offscreenQueue.retryQueue; - if (suspenseState === null) { - // Currently showing content. Don't hide it, even if ForceSuspenseFallback - // is true. More precise name might be "ForceRemainSuspenseFallback". - // Note: This is a factoring smell. Can't remain on a fallback if there's - // no fallback to remain on. - return false; - } - } // Not currently showing content. Consult the Suspense context. + if (_retryQueue === null) { + offscreenQueue.retryQueue = new Set([wakeable]); + } else { + _retryQueue.add(wakeable); + } + } + } - var suspenseContext = suspenseStackCursor.current; - return hasSuspenseListContext(suspenseContext, ForceSuspenseFallback); -} + break; + } + } + // eslint-disable-next-line no-fallthrough -function getRemainingWorkInPrimaryTree(current, renderLanes) { - // TODO: Should not remove render lanes that were pinged during this render - return removeLanes(current.childLanes, renderLanes); -} + default: { + throw new Error( + "Unexpected Suspense handler tag (" + + suspenseBoundary.tag + + "). This " + + "is a bug in React." + ); + } + } // We only attach ping listeners in concurrent mode. Legacy Suspense always + // commits fallbacks synchronously, so there are no pings. -function updateSuspenseComponent(current, workInProgress, renderLanes) { - var nextProps = workInProgress.pendingProps; // This is used by DevTools to force a boundary to suspend. + if (suspenseBoundary.mode & ConcurrentMode) { + attachPingListener(root, wakeable, rootRenderLanes); + } - { - if (shouldSuspend(workInProgress)) { - workInProgress.flags |= DidCapture; + return; + } else { + // No boundary was found. Unless this is a sync update, this is OK. + // We can suspend and wait for more data to arrive. + if (root.tag === ConcurrentRoot) { + // In a concurrent root, suspending without a Suspense boundary is + // allowed. It will suspend indefinitely without committing. + // + // TODO: Should we have different behavior for discrete updates? What + // about flushSync? Maybe it should put the tree into an inert state, + // and potentially log a warning. Revisit this for a future release. + attachPingListener(root, wakeable, rootRenderLanes); + renderDidSuspendDelayIfPossible(); + return; + } else { + // In a legacy root, suspending without a boundary is always an error. + var uncaughtSuspenseError = new Error( + "A component suspended while responding to synchronous input. This " + + "will cause the UI to be replaced with a loading indicator. To " + + "fix, updates that suspend should be wrapped " + + "with startTransition." + ); + value = uncaughtSuspenseError; + } } } - var showFallback = false; - var didSuspend = (workInProgress.flags & DidCapture) !== NoFlags$1; + value = createCapturedValueAtFiber(value, sourceFiber); + renderDidError(value); // We didn't find a boundary that could handle this type of exception. Start + // over and traverse parent path again, this time treating the exception + // as an error. - if (didSuspend || shouldRemainOnFallback(current)) { - // Something in this boundary's subtree already suspended. Switch to - // rendering the fallback children. - showFallback = true; - workInProgress.flags &= ~DidCapture; - } // OK, the next part is confusing. We're about to reconcile the Suspense - // boundary's children. This involves some custom reconciliation logic. Two - // main reasons this is so complicated. - // - // First, Legacy Mode has different semantics for backwards compatibility. The - // primary tree will commit in an inconsistent state, so when we do the - // second pass to render the fallback, we do some exceedingly, uh, clever - // hacks to make that not totally break. Like transferring effects and - // deletions from hidden tree. In Concurrent Mode, it's much simpler, - // because we bailout on the primary tree completely and leave it in its old - // state, no effects. Same as what we do for Offscreen (except that - // Offscreen doesn't have the first render pass). - // - // Second is hydration. During hydration, the Suspense fiber has a slightly - // different layout, where the child points to a dehydrated fragment, which - // contains the DOM rendered by the server. - // - // Third, even if you set all that aside, Suspense is like error boundaries in - // that we first we try to render one tree, and if that fails, we render again - // and switch to a different tree. Like a try/catch block. So we have to track - // which branch we're currently rendering. Ideally we would model this using - // a stack. + var workInProgress = returnFiber; - if (current === null) { - var nextPrimaryChildren = nextProps.children; - var nextFallbackChildren = nextProps.fallback; + do { + switch (workInProgress.tag) { + case HostRoot: { + var _errorInfo = value; + workInProgress.flags |= ShouldCapture; + var lane = pickArbitraryLane(rootRenderLanes); + workInProgress.lanes = mergeLanes(workInProgress.lanes, lane); + var update = createRootErrorUpdate(workInProgress, _errorInfo, lane); + enqueueCapturedUpdate(workInProgress, update); + return; + } - if (showFallback) { - pushFallbackTreeSuspenseHandler(workInProgress); - var fallbackFragment = mountSuspenseFallbackChildren( - workInProgress, - nextPrimaryChildren, - nextFallbackChildren, - renderLanes - ); - var primaryChildFragment = workInProgress.child; - primaryChildFragment.memoizedState = - mountSuspenseOffscreenState(renderLanes); - workInProgress.memoizedState = SUSPENDED_MARKER; + case ClassComponent: + // Capture and retry + var errorInfo = value; + var ctor = workInProgress.type; + var instance = workInProgress.stateNode; - return fallbackFragment; - } else if (typeof nextProps.unstable_expectedLoadTime === "number") { - // This is a CPU-bound tree. Skip this tree and show a placeholder to - // unblock the surrounding content. Then immediately retry after the - // initial commit. - pushFallbackTreeSuspenseHandler(workInProgress); + if ( + (workInProgress.flags & DidCapture) === NoFlags$1 && + (typeof ctor.getDerivedStateFromError === "function" || + (instance !== null && + typeof instance.componentDidCatch === "function" && + !isAlreadyFailedLegacyErrorBoundary(instance))) + ) { + workInProgress.flags |= ShouldCapture; - var _fallbackFragment = mountSuspenseFallbackChildren( - workInProgress, - nextPrimaryChildren, - nextFallbackChildren, - renderLanes - ); + var _lane = pickArbitraryLane(rootRenderLanes); - var _primaryChildFragment = workInProgress.child; - _primaryChildFragment.memoizedState = - mountSuspenseOffscreenState(renderLanes); - workInProgress.memoizedState = SUSPENDED_MARKER; // TODO: Transition Tracing is not yet implemented for CPU Suspense. - // Since nothing actually suspended, there will nothing to ping this to - // get it started back up to attempt the next item. While in terms of - // priority this work has the same priority as this current render, it's - // not part of the same transition once the transition has committed. If - // it's sync, we still want to yield so that it can be painted. - // Conceptually, this is really the same as pinging. We can use any - // RetryLane even if it's the one currently rendering since we're leaving - // it behind on this node. + workInProgress.lanes = mergeLanes(workInProgress.lanes, _lane); // Schedule the error boundary to re-render using updated state - workInProgress.lanes = SomeRetryLane; - return _fallbackFragment; - } else { - pushPrimaryTreeSuspenseHandler(workInProgress); - return mountSuspensePrimaryChildren(workInProgress, nextPrimaryChildren); - } - } else { - // This is an update. - // Special path for hydration - var prevState = current.memoizedState; + var _update = createClassErrorUpdate( + workInProgress, + errorInfo, + _lane + ); - if (prevState !== null) { - var _dehydrated = prevState.dehydrated; + enqueueCapturedUpdate(workInProgress, _update); + return; + } - if (_dehydrated !== null) { - return updateDehydratedSuspenseComponent( - current, - workInProgress, - didSuspend, - nextProps, - _dehydrated, - prevState, - renderLanes - ); - } - } + break; + } // $FlowFixMe[incompatible-type] we bail out when we get a null - if (showFallback) { - pushFallbackTreeSuspenseHandler(workInProgress); - var _nextFallbackChildren = nextProps.fallback; - var _nextPrimaryChildren = nextProps.children; - var fallbackChildFragment = updateSuspenseFallbackChildren( - current, - workInProgress, - _nextPrimaryChildren, - _nextFallbackChildren, - renderLanes - ); - var _primaryChildFragment2 = workInProgress.child; - var prevOffscreenState = current.child.memoizedState; - _primaryChildFragment2.memoizedState = - prevOffscreenState === null - ? mountSuspenseOffscreenState(renderLanes) - : updateSuspenseOffscreenState(prevOffscreenState, renderLanes); + workInProgress = workInProgress.return; + } while (workInProgress !== null); +} - _primaryChildFragment2.childLanes = getRemainingWorkInPrimaryTree( - current, - renderLanes - ); - workInProgress.memoizedState = SUSPENDED_MARKER; - return fallbackChildFragment; - } else { - pushPrimaryTreeSuspenseHandler(workInProgress); - var _nextPrimaryChildren2 = nextProps.children; +var ReactCurrentOwner$2 = ReactSharedInternals.ReactCurrentOwner; // A special exception that's used to unwind the stack when an update flows +// into a dehydrated boundary. - var _primaryChildFragment3 = updateSuspensePrimaryChildren( - current, - workInProgress, - _nextPrimaryChildren2, - renderLanes - ); +var SelectiveHydrationException = new Error( + "This is not a real error. It's an implementation detail of React's " + + "selective hydration feature. If this leaks into userspace, it's a bug in " + + "React. Please file an issue." +); +var didReceiveUpdate = false; +var didWarnAboutBadClass; +var didWarnAboutModulePatternComponent; +var didWarnAboutContextTypeOnFunctionComponent; +var didWarnAboutGetDerivedStateOnFunctionComponent; +var didWarnAboutFunctionRefs; +var didWarnAboutReassigningProps; +var didWarnAboutRevealOrder; +var didWarnAboutTailOptions; +var didWarnAboutDefaultPropsOnFunctionComponent; - workInProgress.memoizedState = null; - return _primaryChildFragment3; - } +{ + didWarnAboutBadClass = {}; + didWarnAboutModulePatternComponent = {}; + didWarnAboutContextTypeOnFunctionComponent = {}; + didWarnAboutGetDerivedStateOnFunctionComponent = {}; + didWarnAboutFunctionRefs = {}; + didWarnAboutReassigningProps = false; + didWarnAboutRevealOrder = {}; + didWarnAboutTailOptions = {}; + didWarnAboutDefaultPropsOnFunctionComponent = {}; +} + +function reconcileChildren(current, workInProgress, nextChildren, renderLanes) { + if (current === null) { + // If this is a fresh new component that hasn't been rendered yet, we + // won't update its child set by applying minimal side-effects. Instead, + // we will add them all to the child before it gets rendered. That means + // we can optimize this reconciliation pass by not tracking side-effects. + workInProgress.child = mountChildFibers( + workInProgress, + null, + nextChildren, + renderLanes + ); + } else { + // If the current child is the same as the work in progress, it means that + // we haven't yet started any work on these children. Therefore, we use + // the clone algorithm to create a copy of all the current children. + // If we had any progressed work already, that is invalid at this point so + // let's throw it out. + workInProgress.child = reconcileChildFibers( + workInProgress, + current.child, + nextChildren, + renderLanes + ); } } -function mountSuspensePrimaryChildren( +function forceUnmountCurrentAndReconcile( + current, workInProgress, - primaryChildren, + nextChildren, renderLanes ) { - var mode = workInProgress.mode; - var primaryChildProps = { - mode: "visible", - children: primaryChildren - }; - var primaryChildFragment = mountWorkInProgressOffscreenFiber( - primaryChildProps, - mode + // This function is fork of reconcileChildren. It's used in cases where we + // want to reconcile without matching against the existing set. This has the + // effect of all current children being unmounted; even if the type and key + // are the same, the old child is unmounted and a new child is created. + // + // To do this, we're going to go through the reconcile algorithm twice. In + // the first pass, we schedule a deletion for all the current children by + // passing null. + workInProgress.child = reconcileChildFibers( + workInProgress, + current.child, + null, + renderLanes + ); // In the second pass, we mount the new children. The trick here is that we + // pass null in place of where we usually pass the current child set. This has + // the effect of remounting all children regardless of whether their + // identities match. + + workInProgress.child = reconcileChildFibers( + workInProgress, + null, + nextChildren, + renderLanes ); - primaryChildFragment.return = workInProgress; - workInProgress.child = primaryChildFragment; - return primaryChildFragment; } -function mountSuspenseFallbackChildren( +function updateForwardRef( + current, workInProgress, - primaryChildren, - fallbackChildren, + Component, + nextProps, renderLanes ) { - var mode = workInProgress.mode; - var progressedPrimaryFragment = workInProgress.child; - var primaryChildProps = { - mode: "hidden", - children: primaryChildren - }; - var primaryChildFragment; - var fallbackChildFragment; - - if ( - (mode & ConcurrentMode) === NoMode && - progressedPrimaryFragment !== null - ) { - // In legacy mode, we commit the primary tree as if it successfully - // completed, even though it's in an inconsistent state. - primaryChildFragment = progressedPrimaryFragment; - primaryChildFragment.childLanes = NoLanes; - primaryChildFragment.pendingProps = primaryChildProps; + // TODO: current can be non-null here even if the component + // hasn't yet mounted. This happens after the first render suspends. + // We'll need to figure out if this is fine or can cause issues. + { + if (workInProgress.type !== workInProgress.elementType) { + // Lazy component props can't be validated in createElement + // because they're only guaranteed to be resolved here. + var innerPropTypes = Component.propTypes; - if (workInProgress.mode & ProfileMode) { - // Reset the durations from the first pass so they aren't included in the - // final amounts. This seems counterintuitive, since we're intentionally - // not measuring part of the render phase, but this makes it match what we - // do in Concurrent Mode. - primaryChildFragment.actualDuration = 0; - primaryChildFragment.actualStartTime = -1; - primaryChildFragment.selfBaseDuration = 0; - primaryChildFragment.treeBaseDuration = 0; + if (innerPropTypes) { + checkPropTypes( + innerPropTypes, + nextProps, // Resolved props + "prop", + getComponentNameFromType(Component) + ); + } } + } - fallbackChildFragment = createFiberFromFragment( - fallbackChildren, - mode, - renderLanes, - null - ); - } else { - primaryChildFragment = mountWorkInProgressOffscreenFiber( - primaryChildProps, - mode - ); - fallbackChildFragment = createFiberFromFragment( - fallbackChildren, - mode, - renderLanes, - null + var render = Component.render; + var ref = workInProgress.ref; // The rest is a fork of updateFunctionComponent + + var nextChildren; + prepareToReadContext(workInProgress, renderLanes); + + { + markComponentRenderStarted(workInProgress); + } + + { + ReactCurrentOwner$2.current = workInProgress; + setIsRendering(true); + nextChildren = renderWithHooks( + current, + workInProgress, + render, + nextProps, + ref, + renderLanes ); + setIsRendering(false); } - primaryChildFragment.return = workInProgress; - fallbackChildFragment.return = workInProgress; - primaryChildFragment.sibling = fallbackChildFragment; - workInProgress.child = primaryChildFragment; - return fallbackChildFragment; -} + { + markComponentRenderStopped(); + } -function mountWorkInProgressOffscreenFiber(offscreenProps, mode, renderLanes) { - // The props argument to `createFiberFromOffscreen` is `any` typed, so we use - // this wrapper function to constrain it. - return createFiberFromOffscreen(offscreenProps, mode, NoLanes, null); -} + if (current !== null && !didReceiveUpdate) { + bailoutHooks(current, workInProgress, renderLanes); + return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes); + } -function updateWorkInProgressOffscreenFiber(current, offscreenProps) { - // The props argument to `createWorkInProgress` is `any` typed, so we use this - // wrapper function to constrain it. - return createWorkInProgress(current, offscreenProps); + workInProgress.flags |= PerformedWork; + reconcileChildren(current, workInProgress, nextChildren, renderLanes); + return workInProgress.child; } -function updateSuspensePrimaryChildren( +function updateMemoComponent( current, workInProgress, - primaryChildren, + Component, + nextProps, renderLanes ) { - var currentPrimaryChildFragment = current.child; - var currentFallbackChildFragment = currentPrimaryChildFragment.sibling; - var primaryChildFragment = updateWorkInProgressOffscreenFiber( - currentPrimaryChildFragment, + if (current === null) { + var type = Component.type; + + if ( + isSimpleFunctionComponent(type) && + Component.compare === null && // SimpleMemoComponent codepath doesn't resolve outer props either. + Component.defaultProps === undefined + ) { + var resolvedType = type; + + { + resolvedType = resolveFunctionForHotReloading(type); + } // If this is a plain function component without default props, + // and with only the default shallow comparison, we upgrade it + // to a SimpleMemoComponent to allow fast path updates. + + workInProgress.tag = SimpleMemoComponent; + workInProgress.type = resolvedType; + + { + validateFunctionComponentInDev(workInProgress, type); + } + + return updateSimpleMemoComponent( + current, + workInProgress, + resolvedType, + nextProps, + renderLanes + ); + } + { - mode: "visible", - children: primaryChildren + var innerPropTypes = type.propTypes; + + if (innerPropTypes) { + // Inner memo component props aren't currently validated in createElement. + // We could move it there, but we'd still need this for lazy code path. + checkPropTypes( + innerPropTypes, + nextProps, // Resolved props + "prop", + getComponentNameFromType(type) + ); + } + + if (Component.defaultProps !== undefined) { + var componentName = getComponentNameFromType(type) || "Unknown"; + + if (!didWarnAboutDefaultPropsOnFunctionComponent[componentName]) { + error( + "%s: Support for defaultProps will be removed from memo components " + + "in a future major release. Use JavaScript default parameters instead.", + componentName + ); + + didWarnAboutDefaultPropsOnFunctionComponent[componentName] = true; + } + } } - ); - if ((workInProgress.mode & ConcurrentMode) === NoMode) { - primaryChildFragment.lanes = renderLanes; + var child = createFiberFromTypeAndProps( + Component.type, + null, + nextProps, + workInProgress, + workInProgress.mode, + renderLanes + ); + child.ref = workInProgress.ref; + child.return = workInProgress; + workInProgress.child = child; + return child; } - primaryChildFragment.return = workInProgress; - primaryChildFragment.sibling = null; - - if (currentFallbackChildFragment !== null) { - // Delete the fallback child fragment - var deletions = workInProgress.deletions; + { + var _type = Component.type; + var _innerPropTypes = _type.propTypes; - if (deletions === null) { - workInProgress.deletions = [currentFallbackChildFragment]; - workInProgress.flags |= ChildDeletion; - } else { - deletions.push(currentFallbackChildFragment); + if (_innerPropTypes) { + // Inner memo component props aren't currently validated in createElement. + // We could move it there, but we'd still need this for lazy code path. + checkPropTypes( + _innerPropTypes, + nextProps, // Resolved props + "prop", + getComponentNameFromType(_type) + ); } } - workInProgress.child = primaryChildFragment; - return primaryChildFragment; + var currentChild = current.child; // This is always exactly one child + + var hasScheduledUpdateOrContext = checkScheduledUpdateOrContext( + current, + renderLanes + ); + + if (!hasScheduledUpdateOrContext) { + // This will be the props with resolved defaultProps, + // unlike current.memoizedProps which will be the unresolved ones. + var prevProps = currentChild.memoizedProps; // Default to shallow comparison + + var compare = Component.compare; + compare = compare !== null ? compare : shallowEqual; + + if (compare(prevProps, nextProps) && current.ref === workInProgress.ref) { + return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes); + } + } // React DevTools reads this flag. + + workInProgress.flags |= PerformedWork; + var newChild = createWorkInProgress(currentChild, nextProps); + newChild.ref = workInProgress.ref; + newChild.return = workInProgress; + workInProgress.child = newChild; + return newChild; } -function updateSuspenseFallbackChildren( +function updateSimpleMemoComponent( current, workInProgress, - primaryChildren, - fallbackChildren, + Component, + nextProps, renderLanes ) { - var mode = workInProgress.mode; - var currentPrimaryChildFragment = current.child; - var currentFallbackChildFragment = currentPrimaryChildFragment.sibling; - var primaryChildProps = { - mode: "hidden", - children: primaryChildren - }; - var primaryChildFragment; + // TODO: current can be non-null here even if the component + // hasn't yet mounted. This happens when the inner render suspends. + // We'll need to figure out if this is fine or can cause issues. + { + if (workInProgress.type !== workInProgress.elementType) { + // Lazy component props can't be validated in createElement + // because they're only guaranteed to be resolved here. + var outerMemoType = workInProgress.elementType; - if ( - // In legacy mode, we commit the primary tree as if it successfully - // completed, even though it's in an inconsistent state. - (mode & ConcurrentMode) === NoMode && // Make sure we're on the second pass, i.e. the primary child fragment was - // already cloned. In legacy mode, the only case where this isn't true is - // when DevTools forces us to display a fallback; we skip the first render - // pass entirely and go straight to rendering the fallback. (In Concurrent - // Mode, SuspenseList can also trigger this scenario, but this is a legacy- - // only codepath.) - workInProgress.child !== currentPrimaryChildFragment - ) { - var progressedPrimaryFragment = workInProgress.child; - primaryChildFragment = progressedPrimaryFragment; - primaryChildFragment.childLanes = NoLanes; - primaryChildFragment.pendingProps = primaryChildProps; + if (outerMemoType.$$typeof === REACT_LAZY_TYPE) { + // We warn when you define propTypes on lazy() + // so let's just skip over it to find memo() outer wrapper. + // Inner props for memo are validated later. + var lazyComponent = outerMemoType; + var payload = lazyComponent._payload; + var init = lazyComponent._init; - if (workInProgress.mode & ProfileMode) { - // Reset the durations from the first pass so they aren't included in the - // final amounts. This seems counterintuitive, since we're intentionally - // not measuring part of the render phase, but this makes it match what we - // do in Concurrent Mode. - primaryChildFragment.actualDuration = 0; - primaryChildFragment.actualStartTime = -1; - primaryChildFragment.selfBaseDuration = - currentPrimaryChildFragment.selfBaseDuration; - primaryChildFragment.treeBaseDuration = - currentPrimaryChildFragment.treeBaseDuration; - } // The fallback fiber was added as a deletion during the first pass. - // However, since we're going to remain on the fallback, we no longer want - // to delete it. + try { + outerMemoType = init(payload); + } catch (x) { + outerMemoType = null; + } // Inner propTypes will be validated in the function component path. - workInProgress.deletions = null; - } else { - primaryChildFragment = updateWorkInProgressOffscreenFiber( - currentPrimaryChildFragment, - primaryChildProps - ); // Since we're reusing a current tree, we need to reuse the flags, too. - // (We don't do this in legacy mode, because in legacy mode we don't re-use - // the current tree; see previous branch.) + var outerPropTypes = outerMemoType && outerMemoType.propTypes; - primaryChildFragment.subtreeFlags = - currentPrimaryChildFragment.subtreeFlags & StaticMask; + if (outerPropTypes) { + checkPropTypes( + outerPropTypes, + nextProps, // Resolved (SimpleMemoComponent has no defaultProps) + "prop", + getComponentNameFromType(outerMemoType) + ); + } + } + } } - var fallbackChildFragment; + if (current !== null) { + var prevProps = current.memoizedProps; - if (currentFallbackChildFragment !== null) { - fallbackChildFragment = createWorkInProgress( - currentFallbackChildFragment, - fallbackChildren - ); - } else { - fallbackChildFragment = createFiberFromFragment( - fallbackChildren, - mode, - renderLanes, - null - ); // Needs a placement effect because the parent (the Suspense boundary) already - // mounted but this is a new fiber. + if ( + shallowEqual(prevProps, nextProps) && + current.ref === workInProgress.ref && // Prevent bailout if the implementation changed due to hot reload. + workInProgress.type === current.type + ) { + didReceiveUpdate = false; // The props are shallowly equal. Reuse the previous props object, like we + // would during a normal fiber bailout. + // + // We don't have strong guarantees that the props object is referentially + // equal during updates where we can't bail out anyway — like if the props + // are shallowly equal, but there's a local state or context update in the + // same batch. + // + // However, as a principle, we should aim to make the behavior consistent + // across different ways of memoizing a component. For example, React.memo + // has a different internal Fiber layout if you pass a normal function + // component (SimpleMemoComponent) versus if you pass a different type + // like forwardRef (MemoComponent). But this is an implementation detail. + // Wrapping a component in forwardRef (or React.lazy, etc) shouldn't + // affect whether the props object is reused during a bailout. - fallbackChildFragment.flags |= Placement; + workInProgress.pendingProps = nextProps = prevProps; + + if (!checkScheduledUpdateOrContext(current, renderLanes)) { + // The pending lanes were cleared at the beginning of beginWork. We're + // about to bail out, but there might be other lanes that weren't + // included in the current render. Usually, the priority level of the + // remaining updates is accumulated during the evaluation of the + // component (i.e. when processing the update queue). But since since + // we're bailing out early *without* evaluating the component, we need + // to account for it here, too. Reset to the value of the current fiber. + // NOTE: This only applies to SimpleMemoComponent, not MemoComponent, + // because a MemoComponent fiber does not have hooks or an update queue; + // rather, it wraps around an inner component, which may or may not + // contains hooks. + // TODO: Move the reset at in beginWork out of the common path so that + // this is no longer necessary. + workInProgress.lanes = current.lanes; + return bailoutOnAlreadyFinishedWork( + current, + workInProgress, + renderLanes + ); + } else if ((current.flags & ForceUpdateForLegacySuspense) !== NoFlags$1) { + // This is a special case that only exists for legacy mode. + // See https://github.com/facebook/react/pull/19216. + didReceiveUpdate = true; + } + } } - fallbackChildFragment.return = workInProgress; - primaryChildFragment.return = workInProgress; - primaryChildFragment.sibling = fallbackChildFragment; - workInProgress.child = primaryChildFragment; - return fallbackChildFragment; + return updateFunctionComponent( + current, + workInProgress, + Component, + nextProps, + renderLanes + ); } -function retrySuspenseComponentWithoutHydrating( - current, - workInProgress, - renderLanes, - recoverableError -) { - // Falling back to client rendering. Because this has performance - // implications, it's considered a recoverable error, even though the user - // likely won't observe anything wrong with the UI. - // - // The error is passed in as an argument to enforce that every caller provide - // a custom message, or explicitly opt out (currently the only path that opts - // out is legacy mode; every concurrent path provides an error). - if (recoverableError !== null) { - queueHydrationError(recoverableError); - } // This will add the old fiber to the deletion list - - reconcileChildFibers(workInProgress, current.child, null, renderLanes); // We're now not suspended nor dehydrated. - +function updateOffscreenComponent(current, workInProgress, renderLanes) { var nextProps = workInProgress.pendingProps; - var primaryChildren = nextProps.children; - var primaryChildFragment = mountSuspensePrimaryChildren( - workInProgress, - primaryChildren - ); // Needs a placement effect because the parent (the Suspense boundary) already - // mounted but this is a new fiber. + var nextChildren = nextProps.children; + var nextIsDetached = + (workInProgress.stateNode._pendingVisibility & OffscreenDetached) !== 0; + var prevState = current !== null ? current.memoizedState : null; + markRef$1(current, workInProgress); - primaryChildFragment.flags |= Placement; - workInProgress.memoizedState = null; - return primaryChildFragment; -} + if ( + nextProps.mode === "hidden" || + nextProps.mode === "unstable-defer-without-hiding" || + nextIsDetached + ) { + // Rendering a hidden tree. + var didSuspend = (workInProgress.flags & DidCapture) !== NoFlags$1; -function mountSuspenseFallbackAfterRetryWithoutHydrating( - current, - workInProgress, - primaryChildren, - fallbackChildren, - renderLanes -) { - var fiberMode = workInProgress.mode; - var primaryChildProps = { - mode: "visible", - children: primaryChildren - }; - var primaryChildFragment = mountWorkInProgressOffscreenFiber( - primaryChildProps, - fiberMode - ); - var fallbackChildFragment = createFiberFromFragment( - fallbackChildren, - fiberMode, - renderLanes, - null - ); // Needs a placement effect because the parent (the Suspense - // boundary) already mounted but this is a new fiber. + if (didSuspend) { + // Something suspended inside a hidden tree + // Include the base lanes from the last render + var nextBaseLanes = + prevState !== null + ? mergeLanes(prevState.baseLanes, renderLanes) + : renderLanes; - fallbackChildFragment.flags |= Placement; - primaryChildFragment.return = workInProgress; - fallbackChildFragment.return = workInProgress; - primaryChildFragment.sibling = fallbackChildFragment; - workInProgress.child = primaryChildFragment; + if (current !== null) { + // Reset to the current children + var currentChild = (workInProgress.child = current.child); // The current render suspended, but there may be other lanes with + // pending work. We can't read `childLanes` from the current Offscreen + // fiber because we reset it when it was deferred; however, we can read + // the pending lanes from the child fibers. - if ((workInProgress.mode & ConcurrentMode) !== NoMode) { - // We will have dropped the effect list which contains the - // deletion. We need to reconcile to delete the current child. - reconcileChildFibers(workInProgress, current.child, null, renderLanes); - } + var currentChildLanes = NoLanes; - return fallbackChildFragment; -} + while (currentChild !== null) { + currentChildLanes = mergeLanes( + mergeLanes(currentChildLanes, currentChild.lanes), + currentChild.childLanes + ); + currentChild = currentChild.sibling; + } -function updateDehydratedSuspenseComponent( - current, - workInProgress, - didSuspend, - nextProps, - suspenseInstance, - suspenseState, - renderLanes -) { - if (!didSuspend) { - // This is the first render pass. Attempt to hydrate. - pushPrimaryTreeSuspenseHandler(workInProgress); // We should never be hydrating at this point because it is the first pass, + var lanesWeJustAttempted = nextBaseLanes; + var remainingChildLanes = removeLanes( + currentChildLanes, + lanesWeJustAttempted + ); + workInProgress.childLanes = remainingChildLanes; + } else { + workInProgress.childLanes = NoLanes; + workInProgress.child = null; + } - if ((workInProgress.mode & ConcurrentMode) === NoMode) { - return retrySuspenseComponentWithoutHydrating( + return deferHiddenOffscreenComponent( current, workInProgress, - renderLanes, - null + nextBaseLanes ); } - if (isSuspenseInstanceFallback()) { - // This boundary is in a permanent fallback state. In this case, we'll never - // get an update and we'll never be able to hydrate the final content. Let's just try the - // client side render instead. - var digest, message, stack; - - { - var _getSuspenseInstanceF = getSuspenseInstanceFallbackErrorDetails(); + if ((workInProgress.mode & ConcurrentMode) === NoMode) { + // In legacy sync mode, don't defer the subtree. Render it now. + // TODO: Consider how Offscreen should work with transitions in the future + var nextState = { + baseLanes: NoLanes, + cachePool: null + }; + workInProgress.memoizedState = nextState; - digest = _getSuspenseInstanceF.digest; - message = _getSuspenseInstanceF.message; - stack = _getSuspenseInstanceF.stack; - } + reuseHiddenContextOnStack(workInProgress); + pushOffscreenSuspenseHandler(workInProgress); + } else if (!includesSomeLane(renderLanes, OffscreenLane)) { + // We're hidden, and we're not rendering at Offscreen. We will bail out + // and resume this tree later. + // Schedule this fiber to re-render at Offscreen priority + workInProgress.lanes = workInProgress.childLanes = + laneToLanes(OffscreenLane); // Include the base lanes from the last render - var error; + var _nextBaseLanes = + prevState !== null + ? mergeLanes(prevState.baseLanes, renderLanes) + : renderLanes; - if (message) { - // eslint-disable-next-line react-internal/prod-error-codes - error = new Error(message); + return deferHiddenOffscreenComponent( + current, + workInProgress, + _nextBaseLanes + ); + } else { + // This is the second render. The surrounding visible content has already + // committed. Now we resume rendering the hidden tree. + // Rendering at offscreen, so we can clear the base lanes. + var _nextState = { + baseLanes: NoLanes, + cachePool: null + }; + workInProgress.memoizedState = _nextState; + + if (prevState !== null) { + pushHiddenContext(workInProgress, prevState); } else { - error = new Error( - "The server could not finish this Suspense boundary, likely " + - "due to an error during server rendering. Switched to " + - "client rendering." - ); + reuseHiddenContextOnStack(workInProgress); } - error.digest = digest; - var capturedValue = createCapturedValue(error, digest, stack); - return retrySuspenseComponentWithoutHydrating( - current, - workInProgress, - renderLanes, - capturedValue - ); + pushOffscreenSuspenseHandler(workInProgress); } - // any context has changed, we need to treat is as if the input might have changed. + } else { + // Rendering a visible tree. + if (prevState !== null) { + pushHiddenContext(workInProgress, prevState); + reuseSuspenseHandlerOnStack(workInProgress); // Since we're not hidden anymore, reset the state - var hasContextChanged = includesSomeLane(renderLanes, current.childLanes); + workInProgress.memoizedState = null; + } else { + // to avoid a push/pop misalignment. - if (didReceiveUpdate || hasContextChanged) { - // This boundary has changed since the first render. This means that we are now unable to - // hydrate it. We might still be able to hydrate it using a higher priority lane. - var root = getWorkInProgressRoot(); + reuseHiddenContextOnStack(workInProgress); + reuseSuspenseHandlerOnStack(workInProgress); + } + } - if (root !== null) { - var attemptHydrationAtLane = getBumpedLaneForHydration( - root, - renderLanes - ); + reconcileChildren(current, workInProgress, nextChildren, renderLanes); + return workInProgress.child; +} - if ( - attemptHydrationAtLane !== NoLane && - attemptHydrationAtLane !== suspenseState.retryLane - ) { - // Intentionally mutating since this render will get interrupted. This - // is one of the very rare times where we mutate the current tree - // during the render phase. - suspenseState.retryLane = attemptHydrationAtLane; // TODO: Ideally this would inherit the event time of the current render +function deferHiddenOffscreenComponent( + current, + workInProgress, + nextBaseLanes, + renderLanes +) { + var nextState = { + baseLanes: nextBaseLanes, + // Save the cache pool so we can resume later. + cachePool: null + }; + workInProgress.memoizedState = nextState; + // to avoid a push/pop misalignment. - var eventTime = NoTimestamp; - enqueueConcurrentRenderForLane(current, attemptHydrationAtLane); - scheduleUpdateOnFiber( - root, - current, - attemptHydrationAtLane, - eventTime - ); // Throw a special object that signals to the work loop that it should - // interrupt the current render. - // - // Because we're inside a React-only execution stack, we don't - // strictly need to throw here — we could instead modify some internal - // work loop state. But using an exception means we don't need to - // check for this case on every iteration of the work loop. So doing - // it this way moves the check out of the fast path. + reuseHiddenContextOnStack(workInProgress); + pushOffscreenSuspenseHandler(workInProgress); - throw SelectiveHydrationException; - } - } // If we did not selectively hydrate, we'll continue rendering without - // hydrating. Mark this tree as suspended to prevent it from committing - // outside a transition. - // - // This path should only happen if the hydration lane already suspended. - // Currently, it also happens during sync updates because there is no - // hydration lane for sync updates. - // TODO: We should ideally have a sync hydration lane that we can apply to do - // a pass where we hydrate this subtree in place using the previous Context and then - // reapply the update afterwards. + return null; +} // Note: These happen to have identical begin phases, for now. We shouldn't hold +// ourselves to this constraint, though. If the behavior diverges, we should +// fork the function. - renderDidSuspendDelayIfPossible(); - return retrySuspenseComponentWithoutHydrating( - current, - workInProgress, - renderLanes, - null - ); - } else if (isSuspenseInstancePending()) { - // This component is still pending more data from the server, so we can't hydrate its - // content. We treat it as if this component suspended itself. It might seem as if - // we could just try to render it client-side instead. However, this will perform a - // lot of unnecessary work and is unlikely to complete since it often will suspend - // on missing data anyway. Additionally, the server might be able to render more - // than we can on the client yet. In that case we'd end up with more fallback states - // on the client than if we just leave it alone. If the server times out or errors - // these should update this boundary to the permanent Fallback state instead. - // Mark it as having captured (i.e. suspended). - workInProgress.flags |= DidCapture; // Leave the child in place. I.e. the dehydrated fragment. +var updateLegacyHiddenComponent = updateOffscreenComponent; - workInProgress.child = current.child; // Register a callback to retry this boundary once the server has sent the result. +function updateFragment(current, workInProgress, renderLanes) { + var nextChildren = workInProgress.pendingProps; + reconcileChildren(current, workInProgress, nextChildren, renderLanes); + return workInProgress.child; +} - retryDehydratedSuspenseBoundary.bind(null, current); - registerSuspenseInstanceRetry(); - return null; - } else { - var primaryChildren = nextProps.children; - var primaryChildFragment = mountSuspensePrimaryChildren( - workInProgress, - primaryChildren - ); // Mark the children as hydrating. This is a fast path to know whether this - // tree is part of a hydrating tree. This is used to determine if a child - // node has fully mounted yet, and for scheduling event replaying. - // Conceptually this is similar to Placement in that a new subtree is - // inserted into the React tree here. It just happens to not need DOM - // mutations because it already exists. +function updateMode(current, workInProgress, renderLanes) { + var nextChildren = workInProgress.pendingProps.children; + reconcileChildren(current, workInProgress, nextChildren, renderLanes); + return workInProgress.child; +} - primaryChildFragment.flags |= Hydrating; - return primaryChildFragment; +function updateProfiler(current, workInProgress, renderLanes) { + { + workInProgress.flags |= Update; + + { + // Reset effect durations for the next eventual effect phase. + // These are reset during render to allow the DevTools commit hook a chance to read them, + var stateNode = workInProgress.stateNode; + stateNode.effectDuration = 0; + stateNode.passiveEffectDuration = 0; } - } else { - // This is the second render pass. We already attempted to hydrated, but - // something either suspended or errored. - if (workInProgress.flags & ForceClientRender) { - // Something errored during hydration. Try again without hydrating. - pushPrimaryTreeSuspenseHandler(workInProgress); - workInProgress.flags &= ~ForceClientRender; + } - var _capturedValue = createCapturedValue( - new Error( - "There was an error while hydrating this Suspense boundary. " + - "Switched to client rendering." - ) - ); + var nextProps = workInProgress.pendingProps; + var nextChildren = nextProps.children; + reconcileChildren(current, workInProgress, nextChildren, renderLanes); + return workInProgress.child; +} - return retrySuspenseComponentWithoutHydrating( - current, - workInProgress, - renderLanes, - _capturedValue - ); - } else if (workInProgress.memoizedState !== null) { - // Something suspended and we should still be in dehydrated mode. - // Leave the existing child in place. - // Push to avoid a mismatch - pushFallbackTreeSuspenseHandler(workInProgress); - workInProgress.child = current.child; // The dehydrated completion pass expects this flag to be there - // but the normal suspense pass doesn't. +function markRef$1(current, workInProgress) { + var ref = workInProgress.ref; - workInProgress.flags |= DidCapture; - return null; - } else { - // Suspended but we should no longer be in dehydrated mode. - // Therefore we now have to render the fallback. - pushFallbackTreeSuspenseHandler(workInProgress); - var nextPrimaryChildren = nextProps.children; - var nextFallbackChildren = nextProps.fallback; - var fallbackChildFragment = - mountSuspenseFallbackAfterRetryWithoutHydrating( - current, - workInProgress, - nextPrimaryChildren, - nextFallbackChildren, - renderLanes + if ( + (current === null && ref !== null) || + (current !== null && current.ref !== ref) + ) { + // Schedule a Ref effect + workInProgress.flags |= Ref; + workInProgress.flags |= RefStatic; + } +} + +function updateFunctionComponent( + current, + workInProgress, + Component, + nextProps, + renderLanes +) { + { + if (workInProgress.type !== workInProgress.elementType) { + // Lazy component props can't be validated in createElement + // because they're only guaranteed to be resolved here. + var innerPropTypes = Component.propTypes; + + if (innerPropTypes) { + checkPropTypes( + innerPropTypes, + nextProps, // Resolved props + "prop", + getComponentNameFromType(Component) ); - var _primaryChildFragment4 = workInProgress.child; - _primaryChildFragment4.memoizedState = - mountSuspenseOffscreenState(renderLanes); - workInProgress.memoizedState = SUSPENDED_MARKER; - return fallbackChildFragment; + } } } -} -function scheduleSuspenseWorkOnFiber(fiber, renderLanes, propagationRoot) { - fiber.lanes = mergeLanes(fiber.lanes, renderLanes); - var alternate = fiber.alternate; + var context; + + { + var unmaskedContext = getUnmaskedContext(workInProgress, Component, true); + context = getMaskedContext(workInProgress, unmaskedContext); + } + + var nextChildren; + prepareToReadContext(workInProgress, renderLanes); + + { + markComponentRenderStarted(workInProgress); + } + + { + ReactCurrentOwner$2.current = workInProgress; + setIsRendering(true); + nextChildren = renderWithHooks( + current, + workInProgress, + Component, + nextProps, + context, + renderLanes + ); + setIsRendering(false); + } + + { + markComponentRenderStopped(); + } - if (alternate !== null) { - alternate.lanes = mergeLanes(alternate.lanes, renderLanes); + if (current !== null && !didReceiveUpdate) { + bailoutHooks(current, workInProgress, renderLanes); + return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes); } - scheduleContextWorkOnParentPath(fiber.return, renderLanes, propagationRoot); + workInProgress.flags |= PerformedWork; + reconcileChildren(current, workInProgress, nextChildren, renderLanes); + return workInProgress.child; } -function propagateSuspenseContextChange( +function replayFunctionComponent( + current, workInProgress, - firstChild, + nextProps, + Component, renderLanes ) { - // Mark any Suspense boundaries with fallbacks as having work to do. - // If they were previously forced into fallbacks, they may now be able - // to unblock. - var node = firstChild; - - while (node !== null) { - if (node.tag === SuspenseComponent) { - var state = node.memoizedState; - - if (state !== null) { - scheduleSuspenseWorkOnFiber(node, renderLanes, workInProgress); - } - } else if (node.tag === SuspenseListComponent) { - // If the tail is hidden there might not be an Suspense boundaries - // to schedule work on. In this case we have to schedule it on the - // list itself. - // We don't have to traverse to the children of the list since - // the list will propagate the change when it rerenders. - scheduleSuspenseWorkOnFiber(node, renderLanes, workInProgress); - } else if (node.child !== null) { - node.child.return = node; - node = node.child; - continue; - } - - if (node === workInProgress) { - return; - } // $FlowFixMe[incompatible-use] found when upgrading Flow + // This function is used to replay a component that previously suspended, + // after its data resolves. It's a simplified version of + // updateFunctionComponent that reuses the hooks from the previous attempt. + var context; - while (node.sibling === null) { - // $FlowFixMe[incompatible-use] found when upgrading Flow - if (node.return === null || node.return === workInProgress) { - return; - } + { + var unmaskedContext = getUnmaskedContext(workInProgress, Component, true); + context = getMaskedContext(workInProgress, unmaskedContext); + } - node = node.return; - } // $FlowFixMe[incompatible-use] found when upgrading Flow + prepareToReadContext(workInProgress, renderLanes); - node.sibling.return = node.return; - node = node.sibling; + { + markComponentRenderStarted(workInProgress); } -} - -function findLastContentRow(firstChild) { - // This is going to find the last row among these children that is already - // showing content on the screen, as opposed to being in fallback state or - // new. If a row has multiple Suspense boundaries, any of them being in the - // fallback state, counts as the whole row being in a fallback state. - // Note that the "rows" will be workInProgress, but any nested children - // will still be current since we haven't rendered them yet. The mounted - // order may not be the same as the new order. We use the new order. - var row = firstChild; - var lastContentRow = null; - while (row !== null) { - var currentRow = row.alternate; // New rows can't be content rows. + var nextChildren = replaySuspendedComponentWithHooks( + current, + workInProgress, + Component, + nextProps, + context + ); - if (currentRow !== null && findFirstSuspended(currentRow) === null) { - lastContentRow = row; - } + { + markComponentRenderStopped(); + } - row = row.sibling; + if (current !== null && !didReceiveUpdate) { + bailoutHooks(current, workInProgress, renderLanes); + return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes); } - return lastContentRow; + workInProgress.flags |= PerformedWork; + reconcileChildren(current, workInProgress, nextChildren, renderLanes); + return workInProgress.child; } -function validateRevealOrder(revealOrder) { +function updateClassComponent( + current, + workInProgress, + Component, + nextProps, + renderLanes +) { { - if ( - revealOrder !== undefined && - revealOrder !== "forwards" && - revealOrder !== "backwards" && - revealOrder !== "together" && - !didWarnAboutRevealOrder[revealOrder] - ) { - didWarnAboutRevealOrder[revealOrder] = true; + // This is used by DevTools to force a boundary to error. + switch (shouldError(workInProgress)) { + case false: { + var _instance = workInProgress.stateNode; + var ctor = workInProgress.type; // TODO This way of resetting the error boundary state is a hack. + // Is there a better way to do this? - if (typeof revealOrder === "string") { - switch (revealOrder.toLowerCase()) { - case "together": - case "forwards": - case "backwards": { - error( - '"%s" is not a valid value for revealOrder on . ' + - 'Use lowercase "%s" instead.', - revealOrder, - revealOrder.toLowerCase() - ); + var tempInstance = new ctor( + workInProgress.memoizedProps, + _instance.context + ); + var state = tempInstance.state; - break; - } + _instance.updater.enqueueSetState(_instance, state, null); - case "forward": - case "backward": { - error( - '"%s" is not a valid value for revealOrder on . ' + - 'React uses the -s suffix in the spelling. Use "%ss" instead.', - revealOrder, - revealOrder.toLowerCase() - ); + break; + } - break; - } + case true: { + workInProgress.flags |= DidCapture; + workInProgress.flags |= ShouldCapture; // eslint-disable-next-line react-internal/prod-error-codes - default: - error( - '"%s" is not a supported revealOrder on . ' + - 'Did you mean "together", "forwards" or "backwards"?', - revealOrder - ); + var error$1 = new Error("Simulated error coming from DevTools"); + var lane = pickArbitraryLane(renderLanes); + workInProgress.lanes = mergeLanes(workInProgress.lanes, lane); // Schedule the error boundary to re-render using updated state - break; - } - } else { - error( - "%s is not a supported value for revealOrder on . " + - 'Did you mean "together", "forwards" or "backwards"?', - revealOrder + var update = createClassErrorUpdate( + workInProgress, + createCapturedValueAtFiber(error$1, workInProgress), + lane + ); + enqueueCapturedUpdate(workInProgress, update); + break; + } + } + + if (workInProgress.type !== workInProgress.elementType) { + // Lazy component props can't be validated in createElement + // because they're only guaranteed to be resolved here. + var innerPropTypes = Component.propTypes; + + if (innerPropTypes) { + checkPropTypes( + innerPropTypes, + nextProps, // Resolved props + "prop", + getComponentNameFromType(Component) ); } } + } // Push context providers early to prevent context stack mismatches. + // During mounting we don't know the child context yet as the instance doesn't exist. + // We will invalidate the child context in finishClassComponent() right after rendering. + + var hasContext; + + if (isContextProvider(Component)) { + hasContext = true; + pushContextProvider(workInProgress); + } else { + hasContext = false; } -} -function validateTailOptions(tailMode, revealOrder) { + prepareToReadContext(workInProgress, renderLanes); + var instance = workInProgress.stateNode; + var shouldUpdate; + + if (instance === null) { + resetSuspendedCurrentOnMountInLegacyMode(current, workInProgress); // In the initial pass we might need to construct the instance. + + constructClassInstance(workInProgress, Component, nextProps); + mountClassInstance(workInProgress, Component, nextProps, renderLanes); + shouldUpdate = true; + } else if (current === null) { + // In a resume, we'll already have an instance we can reuse. + shouldUpdate = resumeMountClassInstance( + workInProgress, + Component, + nextProps, + renderLanes + ); + } else { + shouldUpdate = updateClassInstance( + current, + workInProgress, + Component, + nextProps, + renderLanes + ); + } + + var nextUnitOfWork = finishClassComponent( + current, + workInProgress, + Component, + shouldUpdate, + hasContext, + renderLanes + ); + { - if (tailMode !== undefined && !didWarnAboutTailOptions[tailMode]) { - if (tailMode !== "collapsed" && tailMode !== "hidden") { - didWarnAboutTailOptions[tailMode] = true; - - error( - '"%s" is not a supported value for tail on . ' + - 'Did you mean "collapsed" or "hidden"?', - tailMode - ); - } else if (revealOrder !== "forwards" && revealOrder !== "backwards") { - didWarnAboutTailOptions[tailMode] = true; + var inst = workInProgress.stateNode; + if (shouldUpdate && inst.props !== nextProps) { + if (!didWarnAboutReassigningProps) { error( - ' is only valid if revealOrder is ' + - '"forwards" or "backwards". ' + - 'Did you mean to specify revealOrder="forwards"?', - tailMode + "It looks like %s is reassigning its own `this.props` while rendering. " + + "This is not supported and can lead to confusing bugs.", + getComponentNameFromFiber(workInProgress) || "a component" ); } + + didWarnAboutReassigningProps = true; } } -} - -function validateSuspenseListNestedChild(childSlot, index) { - { - var isAnArray = isArray(childSlot); - var isIterable = - !isAnArray && typeof getIteratorFn(childSlot) === "function"; - if (isAnArray || isIterable) { - var type = isAnArray ? "array" : "iterable"; + return nextUnitOfWork; +} - error( - "A nested %s was passed to row #%s in . Wrap it in " + - "an additional SuspenseList to configure its revealOrder: " + - " ... " + - "{%s} ... " + - "", - type, - index, - type - ); +function finishClassComponent( + current, + workInProgress, + Component, + shouldUpdate, + hasContext, + renderLanes +) { + // Refs should update even if shouldComponentUpdate returns false + markRef$1(current, workInProgress); + var didCaptureError = (workInProgress.flags & DidCapture) !== NoFlags$1; - return false; + if (!shouldUpdate && !didCaptureError) { + // Context providers should defer to sCU for rendering + if (hasContext) { + invalidateContextProvider(workInProgress, Component, false); } + + return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes); } - return true; -} + var instance = workInProgress.stateNode; // Rerender -function validateSuspenseListChildren(children, revealOrder) { - { - if ( - (revealOrder === "forwards" || revealOrder === "backwards") && - children !== undefined && - children !== null && - children !== false - ) { - if (isArray(children)) { - for (var i = 0; i < children.length; i++) { - if (!validateSuspenseListNestedChild(children[i], i)) { - return; - } - } - } else { - var iteratorFn = getIteratorFn(children); + ReactCurrentOwner$2.current = workInProgress; + var nextChildren; - if (typeof iteratorFn === "function") { - var childrenIterator = iteratorFn.call(children); + if ( + didCaptureError && + typeof Component.getDerivedStateFromError !== "function" + ) { + // If we captured an error, but getDerivedStateFromError is not defined, + // unmount all the children. componentDidCatch will schedule an update to + // re-render a fallback. This is temporary until we migrate everyone to + // the new API. + // TODO: Warn in a future release. + nextChildren = null; - if (childrenIterator) { - var step = childrenIterator.next(); - var _i = 0; + { + stopProfilerTimerIfRunning(); + } + } else { + { + markComponentRenderStarted(workInProgress); + } - for (; !step.done; step = childrenIterator.next()) { - if (!validateSuspenseListNestedChild(step.value, _i)) { - return; - } + { + setIsRendering(true); + nextChildren = instance.render(); - _i++; - } - } - } else { - error( - 'A single row was passed to a . ' + - "This is not useful since it needs multiple rows. " + - "Did you mean to pass multiple children or an array?", - revealOrder - ); + if (workInProgress.mode & StrictLegacyMode) { + setIsStrictModeForDevtools(true); + + try { + instance.render(); + } finally { + setIsStrictModeForDevtools(false); } } - } - } -} -function initSuspenseListRenderState( - workInProgress, - isBackwards, - tail, - lastContentRow, - tailMode -) { - var renderState = workInProgress.memoizedState; + setIsRendering(false); + } - if (renderState === null) { - workInProgress.memoizedState = { - isBackwards: isBackwards, - rendering: null, - renderingStartTime: 0, - last: lastContentRow, - tail: tail, - tailMode: tailMode - }; - } else { - // We can reuse the existing object from previous renders. - renderState.isBackwards = isBackwards; - renderState.rendering = null; - renderState.renderingStartTime = 0; - renderState.last = lastContentRow; - renderState.tail = tail; - renderState.tailMode = tailMode; - } -} // This can end up rendering this component multiple passes. -// The first pass splits the children fibers into two sets. A head and tail. -// We first render the head. If anything is in fallback state, we do another -// pass through beginWork to rerender all children (including the tail) with -// the force suspend context. If the first render didn't have anything in -// in fallback state. Then we render each row in the tail one-by-one. -// That happens in the completeWork phase without going back to beginWork. + { + markComponentRenderStopped(); + } + } // React DevTools reads this flag. -function updateSuspenseListComponent(current, workInProgress, renderLanes) { - var nextProps = workInProgress.pendingProps; - var revealOrder = nextProps.revealOrder; - var tailMode = nextProps.tail; - var newChildren = nextProps.children; - validateRevealOrder(revealOrder); - validateTailOptions(tailMode, revealOrder); - validateSuspenseListChildren(newChildren, revealOrder); - reconcileChildren(current, workInProgress, newChildren, renderLanes); - var suspenseContext = suspenseStackCursor.current; - var shouldForceFallback = hasSuspenseListContext( - suspenseContext, - ForceSuspenseFallback - ); + workInProgress.flags |= PerformedWork; - if (shouldForceFallback) { - suspenseContext = setShallowSuspenseListContext( - suspenseContext, - ForceSuspenseFallback + if (current !== null && didCaptureError) { + // If we're recovering from an error, reconcile without reusing any of + // the existing children. Conceptually, the normal children and the children + // that are shown on error are two different sets, so we shouldn't reuse + // normal children even if their identities match. + forceUnmountCurrentAndReconcile( + current, + workInProgress, + nextChildren, + renderLanes ); - workInProgress.flags |= DidCapture; } else { - var didSuspendBefore = - current !== null && (current.flags & DidCapture) !== NoFlags$1; + reconcileChildren(current, workInProgress, nextChildren, renderLanes); + } // Memoize state using the values we just used to render. + // TODO: Restructure so we never read values from the instance. - if (didSuspendBefore) { - // If we previously forced a fallback, we need to schedule work - // on any nested boundaries to let them know to try to render - // again. This is the same as context updating. - propagateSuspenseContextChange( - workInProgress, - workInProgress.child, - renderLanes - ); - } + workInProgress.memoizedState = instance.state; // The context might have changed so we need to recalculate it. - suspenseContext = setDefaultShallowSuspenseListContext(suspenseContext); + if (hasContext) { + invalidateContextProvider(workInProgress, Component, true); } - pushSuspenseListContext(workInProgress, suspenseContext); - - if ((workInProgress.mode & ConcurrentMode) === NoMode) { - // In legacy mode, SuspenseList doesn't work so we just - // use make it a noop by treating it as the default revealOrder. - workInProgress.memoizedState = null; - } else { - switch (revealOrder) { - case "forwards": { - var lastContentRow = findLastContentRow(workInProgress.child); - var tail; - - if (lastContentRow === null) { - // The whole list is part of the tail. - // TODO: We could fast path by just rendering the tail now. - tail = workInProgress.child; - workInProgress.child = null; - } else { - // Disconnect the tail rows after the content row. - // We're going to render them separately later. - tail = lastContentRow.sibling; - lastContentRow.sibling = null; - } - - initSuspenseListRenderState( - workInProgress, - false, // isBackwards - tail, - lastContentRow, - tailMode - ); - break; - } + return workInProgress.child; +} - case "backwards": { - // We're going to find the first row that has existing content. - // At the same time we're going to reverse the list of everything - // we pass in the meantime. That's going to be our tail in reverse - // order. - var _tail = null; - var row = workInProgress.child; - workInProgress.child = null; +function pushHostRootContext(workInProgress) { + var root = workInProgress.stateNode; - while (row !== null) { - var currentRow = row.alternate; // New rows can't be content rows. + if (root.pendingContext) { + pushTopLevelContextObject( + workInProgress, + root.pendingContext, + root.pendingContext !== root.context + ); + } else if (root.context) { + // Should always be set + pushTopLevelContextObject(workInProgress, root.context, false); + } - if (currentRow !== null && findFirstSuspended(currentRow) === null) { - // This is the beginning of the main content. - workInProgress.child = row; - break; - } + pushHostContainer(workInProgress, root.containerInfo); +} - var nextRow = row.sibling; - row.sibling = _tail; - _tail = row; - row = nextRow; - } // TODO: If workInProgress.child is null, we can continue on the tail immediately. +function updateHostRoot(current, workInProgress, renderLanes) { + pushHostRootContext(workInProgress); - initSuspenseListRenderState( - workInProgress, - true, // isBackwards - _tail, - null, // last - tailMode - ); - break; - } + if (current === null) { + throw new Error("Should have a current fiber. This is a bug in React."); + } - case "together": { - initSuspenseListRenderState( - workInProgress, - false, // isBackwards - null, // tail - null, // last - undefined - ); - break; - } + var nextProps = workInProgress.pendingProps; + var prevState = workInProgress.memoizedState; + var prevChildren = prevState.element; + cloneUpdateQueue(current, workInProgress); + processUpdateQueue(workInProgress, nextProps, null, renderLanes); + var nextState = workInProgress.memoizedState; + // being called "element". - default: { - // The default reveal order is the same as not having - // a boundary. - workInProgress.memoizedState = null; - } + var nextChildren = nextState.element; + + { + if (nextChildren === prevChildren) { + return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes); } + + reconcileChildren(current, workInProgress, nextChildren, renderLanes); } return workInProgress.child; } -function updatePortalComponent(current, workInProgress, renderLanes) { - pushHostContainer(workInProgress, workInProgress.stateNode.containerInfo); - var nextChildren = workInProgress.pendingProps; +function updateHostComponent$1(current, workInProgress, renderLanes) { + pushHostContext(workInProgress); + var nextProps = workInProgress.pendingProps; + var prevProps = current !== null ? current.memoizedProps : null; + var nextChildren = nextProps.children; - if (current === null) { - // Portals are special because we don't append the children during mount - // but at commit. Therefore we need to track insertions which the normal - // flow doesn't do during mount. This doesn't happen at the root because - // the root always starts with a "current" with a null child. - // TODO: Consider unifying this with how the root works. - workInProgress.child = reconcileChildFibers( - workInProgress, - null, - nextChildren, - renderLanes - ); - } else { - reconcileChildren(current, workInProgress, nextChildren, renderLanes); + if (prevProps !== null && shouldSetTextContent()) { + // If we're switching from a direct text child to a normal child, or to + // empty, we need to schedule the text content to be reset. + workInProgress.flags |= ContentReset; } + markRef$1(current, workInProgress); + reconcileChildren(current, workInProgress, nextChildren, renderLanes); return workInProgress.child; } -var hasWarnedAboutUsingNoValuePropOnContextProvider = false; +function updateHostText$1(current, workInProgress) { + // immediately after. -function updateContextProvider(current, workInProgress, renderLanes) { - var providerType = workInProgress.type; - var context = providerType._context; - var newProps = workInProgress.pendingProps; - var oldProps = workInProgress.memoizedProps; - var newValue = newProps.value; + return null; +} - { - if (!("value" in newProps)) { - if (!hasWarnedAboutUsingNoValuePropOnContextProvider) { - hasWarnedAboutUsingNoValuePropOnContextProvider = true; +function mountLazyComponent( + _current, + workInProgress, + elementType, + renderLanes +) { + resetSuspendedCurrentOnMountInLegacyMode(_current, workInProgress); + var props = workInProgress.pendingProps; + var lazyComponent = elementType; + var payload = lazyComponent._payload; + var init = lazyComponent._init; + var Component = init(payload); // Store the unwrapped component in the type. - error( - "The `value` prop is required for the ``. Did you misspell it or forget to pass it?" - ); + workInProgress.type = Component; + var resolvedTag = (workInProgress.tag = resolveLazyComponentTag(Component)); + var resolvedProps = resolveDefaultProps(Component, props); + var child; + + switch (resolvedTag) { + case FunctionComponent: { + { + validateFunctionComponentInDev(workInProgress, Component); + workInProgress.type = Component = + resolveFunctionForHotReloading(Component); } + + child = updateFunctionComponent( + null, + workInProgress, + Component, + resolvedProps, + renderLanes + ); + return child; } - var providerPropTypes = workInProgress.type.propTypes; + case ClassComponent: { + { + workInProgress.type = Component = + resolveClassForHotReloading(Component); + } - if (providerPropTypes) { - checkPropTypes(providerPropTypes, newProps, "prop", "Context.Provider"); + child = updateClassComponent( + null, + workInProgress, + Component, + resolvedProps, + renderLanes + ); + return child; } - } - pushProvider(workInProgress, context, newValue); + case ForwardRef: { + { + workInProgress.type = Component = + resolveForwardRefForHotReloading(Component); + } - { - if (oldProps !== null) { - var oldValue = oldProps.value; + child = updateForwardRef( + null, + workInProgress, + Component, + resolvedProps, + renderLanes + ); + return child; + } - if (objectIs(oldValue, newValue)) { - // No change. Bailout early if children are the same. - if (oldProps.children === newProps.children && !hasContextChanged()) { - return bailoutOnAlreadyFinishedWork( - current, - workInProgress, - renderLanes - ); + case MemoComponent: { + { + if (workInProgress.type !== workInProgress.elementType) { + var outerPropTypes = Component.propTypes; + + if (outerPropTypes) { + checkPropTypes( + outerPropTypes, + resolvedProps, // Resolved for outer only + "prop", + getComponentNameFromType(Component) + ); + } } - } else { - // The context value changed. Search for matching consumers and schedule - // them to update. - propagateContextChange(workInProgress, context, renderLanes); } + + child = updateMemoComponent( + null, + workInProgress, + Component, + resolveDefaultProps(Component.type, resolvedProps), // The inner type can have defaults too + renderLanes + ); + return child; } } - var newChildren = newProps.children; - reconcileChildren(current, workInProgress, newChildren, renderLanes); - return workInProgress.child; + var hint = ""; + + { + if ( + Component !== null && + typeof Component === "object" && + Component.$$typeof === REACT_LAZY_TYPE + ) { + hint = " Did you wrap a component in React.lazy() more than once?"; + } + } // This message intentionally doesn't mention ForwardRef or MemoComponent + // because the fact that it's a separate type of work is an + // implementation detail. + + throw new Error( + "Element type is invalid. Received a promise that resolves to: " + + Component + + ". " + + ("Lazy element type must resolve to a class or function." + hint) + ); } -var hasWarnedAboutUsingContextAsConsumer = false; +function mountIncompleteClassComponent( + _current, + workInProgress, + Component, + nextProps, + renderLanes +) { + resetSuspendedCurrentOnMountInLegacyMode(_current, workInProgress); // Promote the fiber to a class and try rendering again. -function updateContextConsumer(current, workInProgress, renderLanes) { - var context = workInProgress.type; // The logic below for Context differs depending on PROD or DEV mode. In - // DEV mode, we create a separate object for Context.Consumer that acts - // like a proxy to Context. This proxy object adds unnecessary code in PROD - // so we use the old behaviour (Context.Consumer references Context) to - // reduce size and overhead. The separate object references context via - // a property called "_context", which also gives us the ability to check - // in DEV mode if this property exists or not and warn if it does not. + workInProgress.tag = ClassComponent; // The rest of this function is a fork of `updateClassComponent` + // Push context providers early to prevent context stack mismatches. + // During mounting we don't know the child context yet as the instance doesn't exist. + // We will invalidate the child context in finishClassComponent() right after rendering. - { - if (context._context === undefined) { - // This may be because it's a Context (rather than a Consumer). - // Or it may be because it's older React where they're the same thing. - // We only want to warn if we're sure it's a new React. - if (context !== context.Consumer) { - if (!hasWarnedAboutUsingContextAsConsumer) { - hasWarnedAboutUsingContextAsConsumer = true; + var hasContext; - error( - "Rendering directly is not supported and will be removed in " + - "a future major release. Did you mean to render instead?" - ); - } - } - } else { - context = context._context; - } + if (isContextProvider(Component)) { + hasContext = true; + pushContextProvider(workInProgress); + } else { + hasContext = false; } - var newProps = workInProgress.pendingProps; - var render = newProps.children; + prepareToReadContext(workInProgress, renderLanes); + constructClassInstance(workInProgress, Component, nextProps); + mountClassInstance(workInProgress, Component, nextProps, renderLanes); + return finishClassComponent( + null, + workInProgress, + Component, + true, + hasContext, + renderLanes + ); +} + +function mountIndeterminateComponent( + _current, + workInProgress, + Component, + renderLanes +) { + resetSuspendedCurrentOnMountInLegacyMode(_current, workInProgress); + var props = workInProgress.pendingProps; + var context; { - if (typeof render !== "function") { - error( - "A context consumer was rendered with multiple children, or a child " + - "that isn't a function. A context consumer expects a single child " + - "that is a function. If you did pass a function, make sure there " + - "is no trailing or leading whitespace around it." - ); - } + var unmaskedContext = getUnmaskedContext(workInProgress, Component, false); + context = getMaskedContext(workInProgress, unmaskedContext); } prepareToReadContext(workInProgress, renderLanes); - var newValue = readContext(context); + var value; { markComponentRenderStarted(workInProgress); } - var newChildren; - { - ReactCurrentOwner$2.current = workInProgress; + if ( + Component.prototype && + typeof Component.prototype.render === "function" + ) { + var componentName = getComponentNameFromType(Component) || "Unknown"; + + if (!didWarnAboutBadClass[componentName]) { + error( + "The <%s /> component appears to have a render method, but doesn't extend React.Component. " + + "This is likely to cause errors. Change %s to extend React.Component instead.", + componentName, + componentName + ); + + didWarnAboutBadClass[componentName] = true; + } + } + + if (workInProgress.mode & StrictLegacyMode) { + ReactStrictModeWarnings.recordLegacyContextWarning(workInProgress, null); + } + setIsRendering(true); - newChildren = render(newValue); + ReactCurrentOwner$2.current = workInProgress; + value = renderWithHooks( + null, + workInProgress, + Component, + props, + context, + renderLanes + ); setIsRendering(false); } @@ -16950,10845 +16041,11600 @@ function updateContextConsumer(current, workInProgress, renderLanes) { } // React DevTools reads this flag. workInProgress.flags |= PerformedWork; - reconcileChildren(current, workInProgress, newChildren, renderLanes); - return workInProgress.child; -} -function markWorkInProgressReceivedUpdate() { - didReceiveUpdate = true; -} + { + // Support for module components is deprecated and is removed behind a flag. + // Whether or not it would crash later, we want to show a good message in DEV first. + if ( + typeof value === "object" && + value !== null && + typeof value.render === "function" && + value.$$typeof === undefined + ) { + var _componentName = getComponentNameFromType(Component) || "Unknown"; -function resetSuspendedCurrentOnMountInLegacyMode(current, workInProgress) { - if ((workInProgress.mode & ConcurrentMode) === NoMode) { - if (current !== null) { - // A lazy component only mounts if it suspended inside a non- - // concurrent tree, in an inconsistent state. We want to treat it like - // a new mount, even though an empty version of it already committed. - // Disconnect the alternate pointers. - current.alternate = null; - workInProgress.alternate = null; // Since this is conceptually a new fiber, schedule a Placement effect + if (!didWarnAboutModulePatternComponent[_componentName]) { + error( + "The <%s /> component appears to be a function component that returns a class instance. " + + "Change %s to a class that extends React.Component instead. " + + "If you can't use a class try assigning the prototype on the function as a workaround. " + + "`%s.prototype = React.Component.prototype`. Don't use an arrow function since it " + + "cannot be called with `new` by React.", + _componentName, + _componentName, + _componentName + ); - workInProgress.flags |= Placement; + didWarnAboutModulePatternComponent[_componentName] = true; + } } } -} -function bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes) { - if (current !== null) { - // Reuse previous dependencies - workInProgress.dependencies = current.dependencies; - } + if ( + // Run these checks in production only if the flag is off. + // Eventually we'll delete this branch altogether. + typeof value === "object" && + value !== null && + typeof value.render === "function" && + value.$$typeof === undefined + ) { + { + var _componentName2 = getComponentNameFromType(Component) || "Unknown"; - { - // Don't update "base" render times for bailouts. - stopProfilerTimerIfRunning(); - } + if (!didWarnAboutModulePatternComponent[_componentName2]) { + error( + "The <%s /> component appears to be a function component that returns a class instance. " + + "Change %s to a class that extends React.Component instead. " + + "If you can't use a class try assigning the prototype on the function as a workaround. " + + "`%s.prototype = React.Component.prototype`. Don't use an arrow function since it " + + "cannot be called with `new` by React.", + _componentName2, + _componentName2, + _componentName2 + ); - markSkippedUpdateLanes(workInProgress.lanes); // Check if the children have any pending work. + didWarnAboutModulePatternComponent[_componentName2] = true; + } + } // Proceed under the assumption that this is a class instance + + workInProgress.tag = ClassComponent; // Throw out any hooks that were used. + + workInProgress.memoizedState = null; + workInProgress.updateQueue = null; // Push context providers early to prevent context stack mismatches. + // During mounting we don't know the child context yet as the instance doesn't exist. + // We will invalidate the child context in finishClassComponent() right after rendering. + + var hasContext = false; + + if (isContextProvider(Component)) { + hasContext = true; + pushContextProvider(workInProgress); + } else { + hasContext = false; + } + + workInProgress.memoizedState = + value.state !== null && value.state !== undefined ? value.state : null; + initializeUpdateQueue(workInProgress); + adoptClassInstance(workInProgress, value); + mountClassInstance(workInProgress, Component, props, renderLanes); + return finishClassComponent( + null, + workInProgress, + Component, + true, + hasContext, + renderLanes + ); + } else { + // Proceed under the assumption that this is a function component + workInProgress.tag = FunctionComponent; + + reconcileChildren(null, workInProgress, value, renderLanes); - if (!includesSomeLane(renderLanes, workInProgress.childLanes)) { - // The children don't have any work either. We can skip them. - // TODO: Once we add back resuming, we should check if the children are - // a work-in-progress set. If so, we need to transfer their effects. { - return null; + validateFunctionComponentInDev(workInProgress, Component); } - } // This fiber doesn't have work, but its subtree does. Clone the child - // fibers and continue. - cloneChildFibers(current, workInProgress); - return workInProgress.child; + return workInProgress.child; + } } -function remountFiber(current, oldWorkInProgress, newWorkInProgress) { +function validateFunctionComponentInDev(workInProgress, Component) { { - var returnFiber = oldWorkInProgress.return; + if (Component) { + if (Component.childContextTypes) { + error( + "%s(...): childContextTypes cannot be defined on a function component.", + Component.displayName || Component.name || "Component" + ); + } + } - if (returnFiber === null) { - // eslint-disable-next-line react-internal/prod-error-codes - throw new Error("Cannot swap the root fiber."); - } // Disconnect from the old current. - // It will get deleted. + if (workInProgress.ref !== null) { + var info = ""; + var ownerName = getCurrentFiberOwnerNameInDevOrNull(); - current.alternate = null; - oldWorkInProgress.alternate = null; // Connect to the new tree. + if (ownerName) { + info += "\n\nCheck the render method of `" + ownerName + "`."; + } + + var warningKey = ownerName || ""; + var debugSource = workInProgress._debugSource; - newWorkInProgress.index = oldWorkInProgress.index; - newWorkInProgress.sibling = oldWorkInProgress.sibling; - newWorkInProgress.return = oldWorkInProgress.return; - newWorkInProgress.ref = oldWorkInProgress.ref; // Replace the child/sibling pointers above it. + if (debugSource) { + warningKey = debugSource.fileName + ":" + debugSource.lineNumber; + } - if (oldWorkInProgress === returnFiber.child) { - returnFiber.child = newWorkInProgress; - } else { - var prevSibling = returnFiber.child; + if (!didWarnAboutFunctionRefs[warningKey]) { + didWarnAboutFunctionRefs[warningKey] = true; - if (prevSibling === null) { - // eslint-disable-next-line react-internal/prod-error-codes - throw new Error("Expected parent to have a child."); - } // $FlowFixMe[incompatible-use] found when upgrading Flow + error( + "Function components cannot be given refs. " + + "Attempts to access this ref will fail. " + + "Did you mean to use React.forwardRef()?%s", + info + ); + } + } - while (prevSibling.sibling !== oldWorkInProgress) { - // $FlowFixMe[incompatible-use] found when upgrading Flow - prevSibling = prevSibling.sibling; + if (Component.defaultProps !== undefined) { + var componentName = getComponentNameFromType(Component) || "Unknown"; - if (prevSibling === null) { - // eslint-disable-next-line react-internal/prod-error-codes - throw new Error("Expected to find the previous sibling."); - } - } // $FlowFixMe[incompatible-use] found when upgrading Flow + if (!didWarnAboutDefaultPropsOnFunctionComponent[componentName]) { + error( + "%s: Support for defaultProps will be removed from function components " + + "in a future major release. Use JavaScript default parameters instead.", + componentName + ); - prevSibling.sibling = newWorkInProgress; - } // Delete the old fiber and place the new one. - // Since the old fiber is disconnected, we have to schedule it manually. + didWarnAboutDefaultPropsOnFunctionComponent[componentName] = true; + } + } - var deletions = returnFiber.deletions; + if (typeof Component.getDerivedStateFromProps === "function") { + var _componentName3 = getComponentNameFromType(Component) || "Unknown"; - if (deletions === null) { - returnFiber.deletions = [current]; - returnFiber.flags |= ChildDeletion; - } else { - deletions.push(current); + if (!didWarnAboutGetDerivedStateOnFunctionComponent[_componentName3]) { + error( + "%s: Function components do not support getDerivedStateFromProps.", + _componentName3 + ); + + didWarnAboutGetDerivedStateOnFunctionComponent[_componentName3] = true; + } } - newWorkInProgress.flags |= Placement; // Restart work from the new fiber. + if ( + typeof Component.contextType === "object" && + Component.contextType !== null + ) { + var _componentName4 = getComponentNameFromType(Component) || "Unknown"; - return newWorkInProgress; + if (!didWarnAboutContextTypeOnFunctionComponent[_componentName4]) { + error( + "%s: Function components do not support contextType.", + _componentName4 + ); + + didWarnAboutContextTypeOnFunctionComponent[_componentName4] = true; + } + } } } -function checkScheduledUpdateOrContext(current, renderLanes) { - // Before performing an early bailout, we must check if there are pending - // updates or context. - var updateLanes = current.lanes; - - if (includesSomeLane(updateLanes, renderLanes)) { - return true; - } // No pending update, but because context is propagated lazily, we need +var SUSPENDED_MARKER = { + dehydrated: null, + treeContext: null, + retryLane: NoLane +}; - return false; +function mountSuspenseOffscreenState(renderLanes) { + return { + baseLanes: renderLanes, + cachePool: getSuspendedCache() + }; } -function attemptEarlyBailoutIfNoScheduledUpdate( - current, - workInProgress, - renderLanes -) { - // This fiber does not have any pending work. Bailout without entering - // the begin phase. There's still some bookkeeping we that needs to be done - // in this optimized path, mostly pushing stuff onto the stack. - switch (workInProgress.tag) { - case HostRoot: - pushHostRootContext(workInProgress); - break; - - case HostSingleton: - case HostComponent: - pushHostContext(workInProgress); - break; +function updateSuspenseOffscreenState(prevOffscreenState, renderLanes) { + var cachePool = null; - case ClassComponent: { - var Component = workInProgress.type; + return { + baseLanes: mergeLanes(prevOffscreenState.baseLanes, renderLanes), + cachePool: cachePool + }; +} // TODO: Probably should inline this back - if (isContextProvider(Component)) { - pushContextProvider(workInProgress); - } +function shouldRemainOnFallback(current, workInProgress, renderLanes) { + // If we're already showing a fallback, there are cases where we need to + // remain on that fallback regardless of whether the content has resolved. + // For example, SuspenseList coordinates when nested content appears. + // TODO: For compatibility with offscreen prerendering, this should also check + // whether the current fiber (if it exists) was visible in the previous tree. + if (current !== null) { + var suspenseState = current.memoizedState; - break; + if (suspenseState === null) { + // Currently showing content. Don't hide it, even if ForceSuspenseFallback + // is true. More precise name might be "ForceRemainSuspenseFallback". + // Note: This is a factoring smell. Can't remain on a fallback if there's + // no fallback to remain on. + return false; } + } // Not currently showing content. Consult the Suspense context. - case HostPortal: - pushHostContainer(workInProgress, workInProgress.stateNode.containerInfo); - break; + var suspenseContext = suspenseStackCursor.current; + return hasSuspenseListContext(suspenseContext, ForceSuspenseFallback); +} - case ContextProvider: { - var newValue = workInProgress.memoizedProps.value; - var context = workInProgress.type._context; - pushProvider(workInProgress, context, newValue); - break; - } +function getRemainingWorkInPrimaryTree(current, renderLanes) { + // TODO: Should not remove render lanes that were pinged during this render + return removeLanes(current.childLanes, renderLanes); +} - case Profiler: - { - // Profiler should only call onRender when one of its descendants actually rendered. - var hasChildWork = includesSomeLane( - renderLanes, - workInProgress.childLanes - ); +function updateSuspenseComponent(current, workInProgress, renderLanes) { + var nextProps = workInProgress.pendingProps; // This is used by DevTools to force a boundary to suspend. - if (hasChildWork) { - workInProgress.flags |= Update; - } + { + if (shouldSuspend(workInProgress)) { + workInProgress.flags |= DidCapture; + } + } - { - // Reset effect durations for the next eventual effect phase. - // These are reset during render to allow the DevTools commit hook a chance to read them, - var stateNode = workInProgress.stateNode; - stateNode.effectDuration = 0; - stateNode.passiveEffectDuration = 0; - } - } + var showFallback = false; + var didSuspend = (workInProgress.flags & DidCapture) !== NoFlags$1; - break; + if (didSuspend || shouldRemainOnFallback(current)) { + // Something in this boundary's subtree already suspended. Switch to + // rendering the fallback children. + showFallback = true; + workInProgress.flags &= ~DidCapture; + } // OK, the next part is confusing. We're about to reconcile the Suspense + // boundary's children. This involves some custom reconciliation logic. Two + // main reasons this is so complicated. + // + // First, Legacy Mode has different semantics for backwards compatibility. The + // primary tree will commit in an inconsistent state, so when we do the + // second pass to render the fallback, we do some exceedingly, uh, clever + // hacks to make that not totally break. Like transferring effects and + // deletions from hidden tree. In Concurrent Mode, it's much simpler, + // because we bailout on the primary tree completely and leave it in its old + // state, no effects. Same as what we do for Offscreen (except that + // Offscreen doesn't have the first render pass). + // + // Second is hydration. During hydration, the Suspense fiber has a slightly + // different layout, where the child points to a dehydrated fragment, which + // contains the DOM rendered by the server. + // + // Third, even if you set all that aside, Suspense is like error boundaries in + // that we first we try to render one tree, and if that fails, we render again + // and switch to a different tree. Like a try/catch block. So we have to track + // which branch we're currently rendering. Ideally we would model this using + // a stack. - case SuspenseComponent: { - var state = workInProgress.memoizedState; + if (current === null) { + var nextPrimaryChildren = nextProps.children; + var nextFallbackChildren = nextProps.fallback; - if (state !== null) { - if (state.dehydrated !== null) { - // We're not going to render the children, so this is just to maintain - // push/pop symmetry - pushPrimaryTreeSuspenseHandler(workInProgress); // We know that this component will suspend again because if it has - // been unsuspended it has committed as a resolved Suspense component. - // If it needs to be retried, it should have work scheduled on it. + if (showFallback) { + pushFallbackTreeSuspenseHandler(workInProgress); + var fallbackFragment = mountSuspenseFallbackChildren( + workInProgress, + nextPrimaryChildren, + nextFallbackChildren, + renderLanes + ); + var primaryChildFragment = workInProgress.child; + primaryChildFragment.memoizedState = + mountSuspenseOffscreenState(renderLanes); + workInProgress.memoizedState = SUSPENDED_MARKER; - workInProgress.flags |= DidCapture; // We should never render the children of a dehydrated boundary until we - // upgrade it. We return null instead of bailoutOnAlreadyFinishedWork. + return fallbackFragment; + } else if (typeof nextProps.unstable_expectedLoadTime === "number") { + // This is a CPU-bound tree. Skip this tree and show a placeholder to + // unblock the surrounding content. Then immediately retry after the + // initial commit. + pushFallbackTreeSuspenseHandler(workInProgress); - return null; - } // If this boundary is currently timed out, we need to decide - // whether to retry the primary children, or to skip over it and - // go straight to the fallback. Check the priority of the primary - // child fragment. + var _fallbackFragment = mountSuspenseFallbackChildren( + workInProgress, + nextPrimaryChildren, + nextFallbackChildren, + renderLanes + ); - var primaryChildFragment = workInProgress.child; - var primaryChildLanes = primaryChildFragment.childLanes; + var _primaryChildFragment = workInProgress.child; + _primaryChildFragment.memoizedState = + mountSuspenseOffscreenState(renderLanes); + workInProgress.memoizedState = SUSPENDED_MARKER; // TODO: Transition Tracing is not yet implemented for CPU Suspense. + // Since nothing actually suspended, there will nothing to ping this to + // get it started back up to attempt the next item. While in terms of + // priority this work has the same priority as this current render, it's + // not part of the same transition once the transition has committed. If + // it's sync, we still want to yield so that it can be painted. + // Conceptually, this is really the same as pinging. We can use any + // RetryLane even if it's the one currently rendering since we're leaving + // it behind on this node. - if (includesSomeLane(renderLanes, primaryChildLanes)) { - // The primary children have pending work. Use the normal path - // to attempt to render the primary children again. - return updateSuspenseComponent(current, workInProgress, renderLanes); - } else { - // The primary child fragment does not have pending work marked - // on it - pushPrimaryTreeSuspenseHandler(workInProgress); // The primary children do not have pending work with sufficient - // priority. Bailout. + workInProgress.lanes = SomeRetryLane; + return _fallbackFragment; + } else { + pushPrimaryTreeSuspenseHandler(workInProgress); + return mountSuspensePrimaryChildren(workInProgress, nextPrimaryChildren); + } + } else { + // This is an update. + // Special path for hydration + var prevState = current.memoizedState; - var child = bailoutOnAlreadyFinishedWork( - current, - workInProgress, - renderLanes - ); + if (prevState !== null) { + var _dehydrated = prevState.dehydrated; - if (child !== null) { - // The fallback children have pending work. Skip over the - // primary children and work on the fallback. - return child.sibling; - } else { - // Note: We can return `null` here because we already checked - // whether there were nested context consumers, via the call to - // `bailoutOnAlreadyFinishedWork` above. - return null; - } - } - } else { - pushPrimaryTreeSuspenseHandler(workInProgress); + if (_dehydrated !== null) { + return updateDehydratedSuspenseComponent( + current, + workInProgress, + didSuspend, + nextProps, + _dehydrated, + prevState, + renderLanes + ); } - - break; } - case SuspenseListComponent: { - var didSuspendBefore = (current.flags & DidCapture) !== NoFlags$1; + if (showFallback) { + pushFallbackTreeSuspenseHandler(workInProgress); + var _nextFallbackChildren = nextProps.fallback; + var _nextPrimaryChildren = nextProps.children; + var fallbackChildFragment = updateSuspenseFallbackChildren( + current, + workInProgress, + _nextPrimaryChildren, + _nextFallbackChildren, + renderLanes + ); + var _primaryChildFragment2 = workInProgress.child; + var prevOffscreenState = current.child.memoizedState; + _primaryChildFragment2.memoizedState = + prevOffscreenState === null + ? mountSuspenseOffscreenState(renderLanes) + : updateSuspenseOffscreenState(prevOffscreenState, renderLanes); - var _hasChildWork = includesSomeLane( - renderLanes, - workInProgress.childLanes + _primaryChildFragment2.childLanes = getRemainingWorkInPrimaryTree( + current, + renderLanes ); + workInProgress.memoizedState = SUSPENDED_MARKER; + return fallbackChildFragment; + } else { + pushPrimaryTreeSuspenseHandler(workInProgress); + var _nextPrimaryChildren2 = nextProps.children; - if (didSuspendBefore) { - if (_hasChildWork) { - // If something was in fallback state last time, and we have all the - // same children then we're still in progressive loading state. - // Something might get unblocked by state updates or retries in the - // tree which will affect the tail. So we need to use the normal - // path to compute the correct tail. - return updateSuspenseListComponent( - current, - workInProgress, - renderLanes - ); - } // If none of the children had any work, that means that none of - // them got retried so they'll still be blocked in the same way - // as before. We can fast bail out. + var _primaryChildFragment3 = updateSuspensePrimaryChildren( + current, + workInProgress, + _nextPrimaryChildren2, + renderLanes + ); - workInProgress.flags |= DidCapture; - } // If nothing suspended before and we're rendering the same children, - // then the tail doesn't matter. Anything new that suspends will work - // in the "together" mode, so we can continue from the state we had. + workInProgress.memoizedState = null; + return _primaryChildFragment3; + } + } +} - var renderState = workInProgress.memoizedState; +function mountSuspensePrimaryChildren( + workInProgress, + primaryChildren, + renderLanes +) { + var mode = workInProgress.mode; + var primaryChildProps = { + mode: "visible", + children: primaryChildren + }; + var primaryChildFragment = mountWorkInProgressOffscreenFiber( + primaryChildProps, + mode + ); + primaryChildFragment.return = workInProgress; + workInProgress.child = primaryChildFragment; + return primaryChildFragment; +} - if (renderState !== null) { - // Reset to the "together" mode in case we've started a different - // update in the past but didn't complete it. - renderState.rendering = null; - renderState.tail = null; - renderState.lastEffect = null; - } +function mountSuspenseFallbackChildren( + workInProgress, + primaryChildren, + fallbackChildren, + renderLanes +) { + var mode = workInProgress.mode; + var progressedPrimaryFragment = workInProgress.child; + var primaryChildProps = { + mode: "hidden", + children: primaryChildren + }; + var primaryChildFragment; + var fallbackChildFragment; - pushSuspenseListContext(workInProgress, suspenseStackCursor.current); + if ( + (mode & ConcurrentMode) === NoMode && + progressedPrimaryFragment !== null + ) { + // In legacy mode, we commit the primary tree as if it successfully + // completed, even though it's in an inconsistent state. + primaryChildFragment = progressedPrimaryFragment; + primaryChildFragment.childLanes = NoLanes; + primaryChildFragment.pendingProps = primaryChildProps; - if (_hasChildWork) { - break; - } else { - // If none of the children had any work, that means that none of - // them got retried so they'll still be blocked in the same way - // as before. We can fast bail out. - return null; - } + if (workInProgress.mode & ProfileMode) { + // Reset the durations from the first pass so they aren't included in the + // final amounts. This seems counterintuitive, since we're intentionally + // not measuring part of the render phase, but this makes it match what we + // do in Concurrent Mode. + primaryChildFragment.actualDuration = 0; + primaryChildFragment.actualStartTime = -1; + primaryChildFragment.selfBaseDuration = 0; + primaryChildFragment.treeBaseDuration = 0; } - case OffscreenComponent: - case LegacyHiddenComponent: { - // Need to check if the tree still needs to be deferred. This is - // almost identical to the logic used in the normal update path, - // so we'll just enter that. The only difference is we'll bail out - // at the next level instead of this one, because the child props - // have not changed. Which is fine. - // TODO: Probably should refactor `beginWork` to split the bailout - // path from the normal path. I'm tempted to do a labeled break here - // but I won't :) - workInProgress.lanes = NoLanes; - return updateOffscreenComponent(current, workInProgress, renderLanes); + fallbackChildFragment = createFiberFromFragment( + fallbackChildren, + mode, + renderLanes, + null + ); + } else { + primaryChildFragment = mountWorkInProgressOffscreenFiber( + primaryChildProps, + mode + ); + fallbackChildFragment = createFiberFromFragment( + fallbackChildren, + mode, + renderLanes, + null + ); + } + + primaryChildFragment.return = workInProgress; + fallbackChildFragment.return = workInProgress; + primaryChildFragment.sibling = fallbackChildFragment; + workInProgress.child = primaryChildFragment; + return fallbackChildFragment; +} + +function mountWorkInProgressOffscreenFiber(offscreenProps, mode, renderLanes) { + // The props argument to `createFiberFromOffscreen` is `any` typed, so we use + // this wrapper function to constrain it. + return createFiberFromOffscreen(offscreenProps, mode, NoLanes, null); +} + +function updateWorkInProgressOffscreenFiber(current, offscreenProps) { + // The props argument to `createWorkInProgress` is `any` typed, so we use this + // wrapper function to constrain it. + return createWorkInProgress(current, offscreenProps); +} + +function updateSuspensePrimaryChildren( + current, + workInProgress, + primaryChildren, + renderLanes +) { + var currentPrimaryChildFragment = current.child; + var currentFallbackChildFragment = currentPrimaryChildFragment.sibling; + var primaryChildFragment = updateWorkInProgressOffscreenFiber( + currentPrimaryChildFragment, + { + mode: "visible", + children: primaryChildren } + ); + + if ((workInProgress.mode & ConcurrentMode) === NoMode) { + primaryChildFragment.lanes = renderLanes; } - return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes); -} + primaryChildFragment.return = workInProgress; + primaryChildFragment.sibling = null; -function beginWork$1(current, workInProgress, renderLanes) { - { - if (workInProgress._debugNeedsRemount && current !== null) { - // This will restart the begin phase with a new fiber. - return remountFiber( - current, - workInProgress, - createFiberFromTypeAndProps( - workInProgress.type, - workInProgress.key, - workInProgress.pendingProps, - workInProgress._debugOwner || null, - workInProgress.mode, - workInProgress.lanes - ) - ); + if (currentFallbackChildFragment !== null) { + // Delete the fallback child fragment + var deletions = workInProgress.deletions; + + if (deletions === null) { + workInProgress.deletions = [currentFallbackChildFragment]; + workInProgress.flags |= ChildDeletion; + } else { + deletions.push(currentFallbackChildFragment); } } - if (current !== null) { - var oldProps = current.memoizedProps; - var newProps = workInProgress.pendingProps; + workInProgress.child = primaryChildFragment; + return primaryChildFragment; +} - if ( - oldProps !== newProps || - hasContextChanged() || // Force a re-render if the implementation changed due to hot reload: - workInProgress.type !== current.type - ) { - // If props or context changed, mark the fiber as having performed work. - // This may be unset if the props are determined to be equal later (memo). - didReceiveUpdate = true; - } else { - // Neither props nor legacy context changes. Check if there's a pending - // update or context change. - var hasScheduledUpdateOrContext = checkScheduledUpdateOrContext( - current, - renderLanes - ); +function updateSuspenseFallbackChildren( + current, + workInProgress, + primaryChildren, + fallbackChildren, + renderLanes +) { + var mode = workInProgress.mode; + var currentPrimaryChildFragment = current.child; + var currentFallbackChildFragment = currentPrimaryChildFragment.sibling; + var primaryChildProps = { + mode: "hidden", + children: primaryChildren + }; + var primaryChildFragment; - if ( - !hasScheduledUpdateOrContext && // If this is the second pass of an error or suspense boundary, there - // may not be work scheduled on `current`, so we check for this flag. - (workInProgress.flags & DidCapture) === NoFlags$1 - ) { - // No pending updates or context. Bail out now. - didReceiveUpdate = false; - return attemptEarlyBailoutIfNoScheduledUpdate( - current, - workInProgress, - renderLanes - ); - } + if ( + // In legacy mode, we commit the primary tree as if it successfully + // completed, even though it's in an inconsistent state. + (mode & ConcurrentMode) === NoMode && // Make sure we're on the second pass, i.e. the primary child fragment was + // already cloned. In legacy mode, the only case where this isn't true is + // when DevTools forces us to display a fallback; we skip the first render + // pass entirely and go straight to rendering the fallback. (In Concurrent + // Mode, SuspenseList can also trigger this scenario, but this is a legacy- + // only codepath.) + workInProgress.child !== currentPrimaryChildFragment + ) { + var progressedPrimaryFragment = workInProgress.child; + primaryChildFragment = progressedPrimaryFragment; + primaryChildFragment.childLanes = NoLanes; + primaryChildFragment.pendingProps = primaryChildProps; - if ((current.flags & ForceUpdateForLegacySuspense) !== NoFlags$1) { - // This is a special case that only exists for legacy mode. - // See https://github.com/facebook/react/pull/19216. - didReceiveUpdate = true; - } else { - // An update was scheduled on this fiber, but there are no new props - // nor legacy context. Set this to false. If an update queue or context - // consumer produces a changed value, it will set this to true. Otherwise, - // the component will assume the children have not changed and bail out. - didReceiveUpdate = false; - } - } + if (workInProgress.mode & ProfileMode) { + // Reset the durations from the first pass so they aren't included in the + // final amounts. This seems counterintuitive, since we're intentionally + // not measuring part of the render phase, but this makes it match what we + // do in Concurrent Mode. + primaryChildFragment.actualDuration = 0; + primaryChildFragment.actualStartTime = -1; + primaryChildFragment.selfBaseDuration = + currentPrimaryChildFragment.selfBaseDuration; + primaryChildFragment.treeBaseDuration = + currentPrimaryChildFragment.treeBaseDuration; + } // The fallback fiber was added as a deletion during the first pass. + // However, since we're going to remain on the fallback, we no longer want + // to delete it. + + workInProgress.deletions = null; } else { - didReceiveUpdate = false; - } // Before entering the begin phase, clear pending update priority. - // TODO: This assumes that we're about to evaluate the component and process - // the update queue. However, there's an exception: SimpleMemoComponent - // sometimes bails out later in the begin phase. This indicates that we should - // move this assignment out of the common path and into each branch. + primaryChildFragment = updateWorkInProgressOffscreenFiber( + currentPrimaryChildFragment, + primaryChildProps + ); // Since we're reusing a current tree, we need to reuse the flags, too. + // (We don't do this in legacy mode, because in legacy mode we don't re-use + // the current tree; see previous branch.) - workInProgress.lanes = NoLanes; + primaryChildFragment.subtreeFlags = + currentPrimaryChildFragment.subtreeFlags & StaticMask; + } - switch (workInProgress.tag) { - case IndeterminateComponent: { - return mountIndeterminateComponent( - current, - workInProgress, - workInProgress.type, - renderLanes - ); - } + var fallbackChildFragment; - case LazyComponent: { - var elementType = workInProgress.elementType; - return mountLazyComponent( - current, - workInProgress, - elementType, - renderLanes - ); - } + if (currentFallbackChildFragment !== null) { + fallbackChildFragment = createWorkInProgress( + currentFallbackChildFragment, + fallbackChildren + ); + } else { + fallbackChildFragment = createFiberFromFragment( + fallbackChildren, + mode, + renderLanes, + null + ); // Needs a placement effect because the parent (the Suspense boundary) already + // mounted but this is a new fiber. - case FunctionComponent: { - var Component = workInProgress.type; - var unresolvedProps = workInProgress.pendingProps; - var resolvedProps = - workInProgress.elementType === Component - ? unresolvedProps - : resolveDefaultProps(Component, unresolvedProps); - return updateFunctionComponent( - current, - workInProgress, - Component, - resolvedProps, - renderLanes - ); - } + fallbackChildFragment.flags |= Placement; + } + + fallbackChildFragment.return = workInProgress; + primaryChildFragment.return = workInProgress; + primaryChildFragment.sibling = fallbackChildFragment; + workInProgress.child = primaryChildFragment; + return fallbackChildFragment; +} + +function retrySuspenseComponentWithoutHydrating( + current, + workInProgress, + renderLanes, + recoverableError +) { + // Falling back to client rendering. Because this has performance + // implications, it's considered a recoverable error, even though the user + // likely won't observe anything wrong with the UI. + // + // The error is passed in as an argument to enforce that every caller provide + // a custom message, or explicitly opt out (currently the only path that opts + // out is legacy mode; every concurrent path provides an error). + if (recoverableError !== null) { + queueHydrationError(recoverableError); + } // This will add the old fiber to the deletion list + + reconcileChildFibers(workInProgress, current.child, null, renderLanes); // We're now not suspended nor dehydrated. + + var nextProps = workInProgress.pendingProps; + var primaryChildren = nextProps.children; + var primaryChildFragment = mountSuspensePrimaryChildren( + workInProgress, + primaryChildren + ); // Needs a placement effect because the parent (the Suspense boundary) already + // mounted but this is a new fiber. + + primaryChildFragment.flags |= Placement; + workInProgress.memoizedState = null; + return primaryChildFragment; +} + +function mountSuspenseFallbackAfterRetryWithoutHydrating( + current, + workInProgress, + primaryChildren, + fallbackChildren, + renderLanes +) { + var fiberMode = workInProgress.mode; + var primaryChildProps = { + mode: "visible", + children: primaryChildren + }; + var primaryChildFragment = mountWorkInProgressOffscreenFiber( + primaryChildProps, + fiberMode + ); + var fallbackChildFragment = createFiberFromFragment( + fallbackChildren, + fiberMode, + renderLanes, + null + ); // Needs a placement effect because the parent (the Suspense + // boundary) already mounted but this is a new fiber. + + fallbackChildFragment.flags |= Placement; + primaryChildFragment.return = workInProgress; + fallbackChildFragment.return = workInProgress; + primaryChildFragment.sibling = fallbackChildFragment; + workInProgress.child = primaryChildFragment; - case ClassComponent: { - var _Component = workInProgress.type; - var _unresolvedProps = workInProgress.pendingProps; + if ((workInProgress.mode & ConcurrentMode) !== NoMode) { + // We will have dropped the effect list which contains the + // deletion. We need to reconcile to delete the current child. + reconcileChildFibers(workInProgress, current.child, null, renderLanes); + } - var _resolvedProps = - workInProgress.elementType === _Component - ? _unresolvedProps - : resolveDefaultProps(_Component, _unresolvedProps); + return fallbackChildFragment; +} - return updateClassComponent( +function updateDehydratedSuspenseComponent( + current, + workInProgress, + didSuspend, + nextProps, + suspenseInstance, + suspenseState, + renderLanes +) { + if (!didSuspend) { + // This is the first render pass. Attempt to hydrate. + pushPrimaryTreeSuspenseHandler(workInProgress); // We should never be hydrating at this point because it is the first pass, + + if ((workInProgress.mode & ConcurrentMode) === NoMode) { + return retrySuspenseComponentWithoutHydrating( current, workInProgress, - _Component, - _resolvedProps, - renderLanes + renderLanes, + null ); } - case HostRoot: - return updateHostRoot(current, workInProgress, renderLanes); - - case HostHoistable: - - // eslint-disable-next-line no-fallthrough - - case HostSingleton: - - // eslint-disable-next-line no-fallthrough - - case HostComponent: - return updateHostComponent$1(current, workInProgress, renderLanes); - - case HostText: - return updateHostText$1(); + if (isSuspenseInstanceFallback()) { + // This boundary is in a permanent fallback state. In this case, we'll never + // get an update and we'll never be able to hydrate the final content. Let's just try the + // client side render instead. + var digest, message, stack; - case SuspenseComponent: - return updateSuspenseComponent(current, workInProgress, renderLanes); + { + var _getSuspenseInstanceF = getSuspenseInstanceFallbackErrorDetails(); - case HostPortal: - return updatePortalComponent(current, workInProgress, renderLanes); + digest = _getSuspenseInstanceF.digest; + message = _getSuspenseInstanceF.message; + stack = _getSuspenseInstanceF.stack; + } - case ForwardRef: { - var type = workInProgress.type; - var _unresolvedProps2 = workInProgress.pendingProps; + var error; - var _resolvedProps2 = - workInProgress.elementType === type - ? _unresolvedProps2 - : resolveDefaultProps(type, _unresolvedProps2); + if (message) { + // eslint-disable-next-line react-internal/prod-error-codes + error = new Error(message); + } else { + error = new Error( + "The server could not finish this Suspense boundary, likely " + + "due to an error during server rendering. Switched to " + + "client rendering." + ); + } - return updateForwardRef( + error.digest = digest; + var capturedValue = createCapturedValue(error, digest, stack); + return retrySuspenseComponentWithoutHydrating( current, workInProgress, - type, - _resolvedProps2, - renderLanes + renderLanes, + capturedValue ); } + // any context has changed, we need to treat is as if the input might have changed. - case Fragment: - return updateFragment(current, workInProgress, renderLanes); - - case Mode: - return updateMode(current, workInProgress, renderLanes); - - case Profiler: - return updateProfiler(current, workInProgress, renderLanes); - - case ContextProvider: - return updateContextProvider(current, workInProgress, renderLanes); + var hasContextChanged = includesSomeLane(renderLanes, current.childLanes); - case ContextConsumer: - return updateContextConsumer(current, workInProgress, renderLanes); + if (didReceiveUpdate || hasContextChanged) { + // This boundary has changed since the first render. This means that we are now unable to + // hydrate it. We might still be able to hydrate it using a higher priority lane. + var root = getWorkInProgressRoot(); - case MemoComponent: { - var _type2 = workInProgress.type; - var _unresolvedProps3 = workInProgress.pendingProps; // Resolve outer props first, then resolve inner props. + if (root !== null) { + var attemptHydrationAtLane = getBumpedLaneForHydration( + root, + renderLanes + ); - var _resolvedProps3 = resolveDefaultProps(_type2, _unresolvedProps3); + if ( + attemptHydrationAtLane !== NoLane && + attemptHydrationAtLane !== suspenseState.retryLane + ) { + // Intentionally mutating since this render will get interrupted. This + // is one of the very rare times where we mutate the current tree + // during the render phase. + suspenseState.retryLane = attemptHydrationAtLane; // TODO: Ideally this would inherit the event time of the current render - { - if (workInProgress.type !== workInProgress.elementType) { - var outerPropTypes = _type2.propTypes; + var eventTime = NoTimestamp; + enqueueConcurrentRenderForLane(current, attemptHydrationAtLane); + scheduleUpdateOnFiber( + root, + current, + attemptHydrationAtLane, + eventTime + ); // Throw a special object that signals to the work loop that it should + // interrupt the current render. + // + // Because we're inside a React-only execution stack, we don't + // strictly need to throw here — we could instead modify some internal + // work loop state. But using an exception means we don't need to + // check for this case on every iteration of the work loop. So doing + // it this way moves the check out of the fast path. - if (outerPropTypes) { - checkPropTypes( - outerPropTypes, - _resolvedProps3, // Resolved for outer only - "prop", - getComponentNameFromType(_type2) - ); - } + throw SelectiveHydrationException; } - } - - _resolvedProps3 = resolveDefaultProps(_type2.type, _resolvedProps3); - return updateMemoComponent( - current, - workInProgress, - _type2, - _resolvedProps3, - renderLanes - ); - } + } // If we did not selectively hydrate, we'll continue rendering without + // hydrating. Mark this tree as suspended to prevent it from committing + // outside a transition. + // + // This path should only happen if the hydration lane already suspended. + // Currently, it also happens during sync updates because there is no + // hydration lane for sync updates. + // TODO: We should ideally have a sync hydration lane that we can apply to do + // a pass where we hydrate this subtree in place using the previous Context and then + // reapply the update afterwards. - case SimpleMemoComponent: { - return updateSimpleMemoComponent( + renderDidSuspendDelayIfPossible(); + return retrySuspenseComponentWithoutHydrating( current, workInProgress, - workInProgress.type, - workInProgress.pendingProps, - renderLanes + renderLanes, + null ); - } - - case IncompleteClassComponent: { - var _Component2 = workInProgress.type; - var _unresolvedProps4 = workInProgress.pendingProps; + } else if (isSuspenseInstancePending()) { + // This component is still pending more data from the server, so we can't hydrate its + // content. We treat it as if this component suspended itself. It might seem as if + // we could just try to render it client-side instead. However, this will perform a + // lot of unnecessary work and is unlikely to complete since it often will suspend + // on missing data anyway. Additionally, the server might be able to render more + // than we can on the client yet. In that case we'd end up with more fallback states + // on the client than if we just leave it alone. If the server times out or errors + // these should update this boundary to the permanent Fallback state instead. + // Mark it as having captured (i.e. suspended). + workInProgress.flags |= DidCapture; // Leave the child in place. I.e. the dehydrated fragment. - var _resolvedProps4 = - workInProgress.elementType === _Component2 - ? _unresolvedProps4 - : resolveDefaultProps(_Component2, _unresolvedProps4); + workInProgress.child = current.child; // Register a callback to retry this boundary once the server has sent the result. - return mountIncompleteClassComponent( - current, + retryDehydratedSuspenseBoundary.bind(null, current); + registerSuspenseInstanceRetry(); + return null; + } else { + var primaryChildren = nextProps.children; + var primaryChildFragment = mountSuspensePrimaryChildren( workInProgress, - _Component2, - _resolvedProps4, - renderLanes - ); - } + primaryChildren + ); // Mark the children as hydrating. This is a fast path to know whether this + // tree is part of a hydrating tree. This is used to determine if a child + // node has fully mounted yet, and for scheduling event replaying. + // Conceptually this is similar to Placement in that a new subtree is + // inserted into the React tree here. It just happens to not need DOM + // mutations because it already exists. - case SuspenseListComponent: { - return updateSuspenseListComponent(current, workInProgress, renderLanes); + primaryChildFragment.flags |= Hydrating; + return primaryChildFragment; } + } else { + // This is the second render pass. We already attempted to hydrated, but + // something either suspended or errored. + if (workInProgress.flags & ForceClientRender) { + // Something errored during hydration. Try again without hydrating. + pushPrimaryTreeSuspenseHandler(workInProgress); + workInProgress.flags &= ~ForceClientRender; - case ScopeComponent: { - break; - } + var _capturedValue = createCapturedValue( + new Error( + "There was an error while hydrating this Suspense boundary. " + + "Switched to client rendering." + ) + ); - case OffscreenComponent: { - return updateOffscreenComponent(current, workInProgress, renderLanes); - } + return retrySuspenseComponentWithoutHydrating( + current, + workInProgress, + renderLanes, + _capturedValue + ); + } else if (workInProgress.memoizedState !== null) { + // Something suspended and we should still be in dehydrated mode. + // Leave the existing child in place. + // Push to avoid a mismatch + pushFallbackTreeSuspenseHandler(workInProgress); + workInProgress.child = current.child; // The dehydrated completion pass expects this flag to be there + // but the normal suspense pass doesn't. - case LegacyHiddenComponent: { - { - return updateLegacyHiddenComponent( + workInProgress.flags |= DidCapture; + return null; + } else { + // Suspended but we should no longer be in dehydrated mode. + // Therefore we now have to render the fallback. + pushFallbackTreeSuspenseHandler(workInProgress); + var nextPrimaryChildren = nextProps.children; + var nextFallbackChildren = nextProps.fallback; + var fallbackChildFragment = + mountSuspenseFallbackAfterRetryWithoutHydrating( current, workInProgress, + nextPrimaryChildren, + nextFallbackChildren, renderLanes ); - } + var _primaryChildFragment4 = workInProgress.child; + _primaryChildFragment4.memoizedState = + mountSuspenseOffscreenState(renderLanes); + workInProgress.memoizedState = SUSPENDED_MARKER; + return fallbackChildFragment; } } - - throw new Error( - "Unknown unit of work tag (" + - workInProgress.tag + - "). This error is likely caused by a bug in " + - "React. Please file an issue." - ); } -var valueCursor = createCursor(null); +function scheduleSuspenseWorkOnFiber(fiber, renderLanes, propagationRoot) { + fiber.lanes = mergeLanes(fiber.lanes, renderLanes); + var alternate = fiber.alternate; -var renderer2CursorDEV; + if (alternate !== null) { + alternate.lanes = mergeLanes(alternate.lanes, renderLanes); + } -{ - renderer2CursorDEV = createCursor(null); + scheduleContextWorkOnParentPath(fiber.return, renderLanes, propagationRoot); } -var rendererSigil; +function propagateSuspenseContextChange( + workInProgress, + firstChild, + renderLanes +) { + // Mark any Suspense boundaries with fallbacks as having work to do. + // If they were previously forced into fallbacks, they may now be able + // to unblock. + var node = firstChild; -{ - // Use this to detect multiple renderers using the same context - rendererSigil = {}; -} + while (node !== null) { + if (node.tag === SuspenseComponent) { + var state = node.memoizedState; -var currentlyRenderingFiber = null; -var lastContextDependency = null; -var lastFullyObservedContext = null; -var isDisallowedContextReadInDEV = false; -function resetContextDependencies() { - // This is called right before React yields execution, to ensure `readContext` - // cannot be called outside the render phase. - currentlyRenderingFiber = null; - lastContextDependency = null; - lastFullyObservedContext = null; + if (state !== null) { + scheduleSuspenseWorkOnFiber(node, renderLanes, workInProgress); + } + } else if (node.tag === SuspenseListComponent) { + // If the tail is hidden there might not be an Suspense boundaries + // to schedule work on. In this case we have to schedule it on the + // list itself. + // We don't have to traverse to the children of the list since + // the list will propagate the change when it rerenders. + scheduleSuspenseWorkOnFiber(node, renderLanes, workInProgress); + } else if (node.child !== null) { + node.child.return = node; + node = node.child; + continue; + } - { - isDisallowedContextReadInDEV = false; - } -} -function enterDisallowedContextReadInDEV() { - { - isDisallowedContextReadInDEV = true; - } -} -function exitDisallowedContextReadInDEV() { - { - isDisallowedContextReadInDEV = false; + if (node === workInProgress) { + return; + } // $FlowFixMe[incompatible-use] found when upgrading Flow + + while (node.sibling === null) { + // $FlowFixMe[incompatible-use] found when upgrading Flow + if (node.return === null || node.return === workInProgress) { + return; + } + + node = node.return; + } // $FlowFixMe[incompatible-use] found when upgrading Flow + + node.sibling.return = node.return; + node = node.sibling; } } -function pushProvider(providerFiber, context, nextValue) { - { - push(valueCursor, context._currentValue2, providerFiber); - context._currentValue2 = nextValue; - { - push(renderer2CursorDEV, context._currentRenderer2, providerFiber); +function findLastContentRow(firstChild) { + // This is going to find the last row among these children that is already + // showing content on the screen, as opposed to being in fallback state or + // new. If a row has multiple Suspense boundaries, any of them being in the + // fallback state, counts as the whole row being in a fallback state. + // Note that the "rows" will be workInProgress, but any nested children + // will still be current since we haven't rendered them yet. The mounted + // order may not be the same as the new order. We use the new order. + var row = firstChild; + var lastContentRow = null; - if ( - context._currentRenderer2 !== undefined && - context._currentRenderer2 !== null && - context._currentRenderer2 !== rendererSigil - ) { - error( - "Detected multiple renderers concurrently rendering the " + - "same context provider. This is currently unsupported." - ); - } + while (row !== null) { + var currentRow = row.alternate; // New rows can't be content rows. - context._currentRenderer2 = rendererSigil; + if (currentRow !== null && findFirstSuspended(currentRow) === null) { + lastContentRow = row; } + + row = row.sibling; } + + return lastContentRow; } -function popProvider(context, providerFiber) { - var currentValue = valueCursor.current; +function validateRevealOrder(revealOrder) { { - if (currentValue === REACT_SERVER_CONTEXT_DEFAULT_VALUE_NOT_LOADED) { - context._currentValue2 = context._defaultValue; - } else { - context._currentValue2 = currentValue; - } + if ( + revealOrder !== undefined && + revealOrder !== "forwards" && + revealOrder !== "backwards" && + revealOrder !== "together" && + !didWarnAboutRevealOrder[revealOrder] + ) { + didWarnAboutRevealOrder[revealOrder] = true; - { - var currentRenderer2 = renderer2CursorDEV.current; - pop(renderer2CursorDEV, providerFiber); - context._currentRenderer2 = currentRenderer2; + if (typeof revealOrder === "string") { + switch (revealOrder.toLowerCase()) { + case "together": + case "forwards": + case "backwards": { + error( + '"%s" is not a valid value for revealOrder on . ' + + 'Use lowercase "%s" instead.', + revealOrder, + revealOrder.toLowerCase() + ); + + break; + } + + case "forward": + case "backward": { + error( + '"%s" is not a valid value for revealOrder on . ' + + 'React uses the -s suffix in the spelling. Use "%ss" instead.', + revealOrder, + revealOrder.toLowerCase() + ); + + break; + } + + default: + error( + '"%s" is not a supported revealOrder on . ' + + 'Did you mean "together", "forwards" or "backwards"?', + revealOrder + ); + + break; + } + } else { + error( + "%s is not a supported value for revealOrder on . " + + 'Did you mean "together", "forwards" or "backwards"?', + revealOrder + ); + } } } - - pop(valueCursor, providerFiber); } -function scheduleContextWorkOnParentPath(parent, renderLanes, propagationRoot) { - // Update the child lanes of all the ancestors, including the alternates. - var node = parent; - while (node !== null) { - var alternate = node.alternate; +function validateTailOptions(tailMode, revealOrder) { + { + if (tailMode !== undefined && !didWarnAboutTailOptions[tailMode]) { + if (tailMode !== "collapsed" && tailMode !== "hidden") { + didWarnAboutTailOptions[tailMode] = true; - if (!isSubsetOfLanes(node.childLanes, renderLanes)) { - node.childLanes = mergeLanes(node.childLanes, renderLanes); + error( + '"%s" is not a supported value for tail on . ' + + 'Did you mean "collapsed" or "hidden"?', + tailMode + ); + } else if (revealOrder !== "forwards" && revealOrder !== "backwards") { + didWarnAboutTailOptions[tailMode] = true; - if (alternate !== null) { - alternate.childLanes = mergeLanes(alternate.childLanes, renderLanes); + error( + ' is only valid if revealOrder is ' + + '"forwards" or "backwards". ' + + 'Did you mean to specify revealOrder="forwards"?', + tailMode + ); } - } else if ( - alternate !== null && - !isSubsetOfLanes(alternate.childLanes, renderLanes) - ) { - alternate.childLanes = mergeLanes(alternate.childLanes, renderLanes); - } else; - - if (node === propagationRoot) { - break; } - - node = node.return; } +} +function validateSuspenseListNestedChild(childSlot, index) { { - if (node !== propagationRoot) { + var isAnArray = isArray(childSlot); + var isIterable = + !isAnArray && typeof getIteratorFn(childSlot) === "function"; + + if (isAnArray || isIterable) { + var type = isAnArray ? "array" : "iterable"; + error( - "Expected to find the propagation root when scheduling context work. " + - "This error is likely caused by a bug in React. Please file an issue." + "A nested %s was passed to row #%s in . Wrap it in " + + "an additional SuspenseList to configure its revealOrder: " + + " ... " + + "{%s} ... " + + "", + type, + index, + type ); + + return false; } } + + return true; } -function propagateContextChange(workInProgress, context, renderLanes) { + +function validateSuspenseListChildren(children, revealOrder) { { - propagateContextChange_eager(workInProgress, context, renderLanes); + if ( + (revealOrder === "forwards" || revealOrder === "backwards") && + children !== undefined && + children !== null && + children !== false + ) { + if (isArray(children)) { + for (var i = 0; i < children.length; i++) { + if (!validateSuspenseListNestedChild(children[i], i)) { + return; + } + } + } else { + var iteratorFn = getIteratorFn(children); + + if (typeof iteratorFn === "function") { + var childrenIterator = iteratorFn.call(children); + + if (childrenIterator) { + var step = childrenIterator.next(); + var _i = 0; + + for (; !step.done; step = childrenIterator.next()) { + if (!validateSuspenseListNestedChild(step.value, _i)) { + return; + } + + _i++; + } + } + } else { + error( + 'A single row was passed to a . ' + + "This is not useful since it needs multiple rows. " + + "Did you mean to pass multiple children or an array?", + revealOrder + ); + } + } + } } } -function propagateContextChange_eager(workInProgress, context, renderLanes) { - var fiber = workInProgress.child; +function initSuspenseListRenderState( + workInProgress, + isBackwards, + tail, + lastContentRow, + tailMode +) { + var renderState = workInProgress.memoizedState; - if (fiber !== null) { - // Set the return pointer of the child to the work-in-progress fiber. - fiber.return = workInProgress; + if (renderState === null) { + workInProgress.memoizedState = { + isBackwards: isBackwards, + rendering: null, + renderingStartTime: 0, + last: lastContentRow, + tail: tail, + tailMode: tailMode + }; + } else { + // We can reuse the existing object from previous renders. + renderState.isBackwards = isBackwards; + renderState.rendering = null; + renderState.renderingStartTime = 0; + renderState.last = lastContentRow; + renderState.tail = tail; + renderState.tailMode = tailMode; } +} // This can end up rendering this component multiple passes. +// The first pass splits the children fibers into two sets. A head and tail. +// We first render the head. If anything is in fallback state, we do another +// pass through beginWork to rerender all children (including the tail) with +// the force suspend context. If the first render didn't have anything in +// in fallback state. Then we render each row in the tail one-by-one. +// That happens in the completeWork phase without going back to beginWork. - while (fiber !== null) { - var nextFiber = void 0; // Visit this fiber. - - var list = fiber.dependencies; +function updateSuspenseListComponent(current, workInProgress, renderLanes) { + var nextProps = workInProgress.pendingProps; + var revealOrder = nextProps.revealOrder; + var tailMode = nextProps.tail; + var newChildren = nextProps.children; + validateRevealOrder(revealOrder); + validateTailOptions(tailMode, revealOrder); + validateSuspenseListChildren(newChildren, revealOrder); + reconcileChildren(current, workInProgress, newChildren, renderLanes); + var suspenseContext = suspenseStackCursor.current; + var shouldForceFallback = hasSuspenseListContext( + suspenseContext, + ForceSuspenseFallback + ); - if (list !== null) { - nextFiber = fiber.child; - var dependency = list.firstContext; + if (shouldForceFallback) { + suspenseContext = setShallowSuspenseListContext( + suspenseContext, + ForceSuspenseFallback + ); + workInProgress.flags |= DidCapture; + } else { + var didSuspendBefore = + current !== null && (current.flags & DidCapture) !== NoFlags$1; - while (dependency !== null) { - // Check if the context matches. - if (dependency.context === context) { - // Match! Schedule an update on this fiber. - if (fiber.tag === ClassComponent) { - // Schedule a force update on the work-in-progress. - var lane = pickArbitraryLane(renderLanes); - var update = createUpdate(lane); - update.tag = ForceUpdate; // TODO: Because we don't have a work-in-progress, this will add the - // update to the current fiber, too, which means it will persist even if - // this render is thrown away. Since it's a race condition, not sure it's - // worth fixing. - // Inlined `enqueueUpdate` to remove interleaved update check + if (didSuspendBefore) { + // If we previously forced a fallback, we need to schedule work + // on any nested boundaries to let them know to try to render + // again. This is the same as context updating. + propagateSuspenseContextChange( + workInProgress, + workInProgress.child, + renderLanes + ); + } - var updateQueue = fiber.updateQueue; + suspenseContext = setDefaultShallowSuspenseListContext(suspenseContext); + } - if (updateQueue === null); - else { - var sharedQueue = updateQueue.shared; - var pending = sharedQueue.pending; + pushSuspenseListContext(workInProgress, suspenseContext); - if (pending === null) { - // This is the first update. Create a circular list. - update.next = update; - } else { - update.next = pending.next; - pending.next = update; - } + if ((workInProgress.mode & ConcurrentMode) === NoMode) { + // In legacy mode, SuspenseList doesn't work so we just + // use make it a noop by treating it as the default revealOrder. + workInProgress.memoizedState = null; + } else { + switch (revealOrder) { + case "forwards": { + var lastContentRow = findLastContentRow(workInProgress.child); + var tail; - sharedQueue.pending = update; - } - } + if (lastContentRow === null) { + // The whole list is part of the tail. + // TODO: We could fast path by just rendering the tail now. + tail = workInProgress.child; + workInProgress.child = null; + } else { + // Disconnect the tail rows after the content row. + // We're going to render them separately later. + tail = lastContentRow.sibling; + lastContentRow.sibling = null; + } - fiber.lanes = mergeLanes(fiber.lanes, renderLanes); - var alternate = fiber.alternate; + initSuspenseListRenderState( + workInProgress, + false, // isBackwards + tail, + lastContentRow, + tailMode + ); + break; + } - if (alternate !== null) { - alternate.lanes = mergeLanes(alternate.lanes, renderLanes); - } + case "backwards": { + // We're going to find the first row that has existing content. + // At the same time we're going to reverse the list of everything + // we pass in the meantime. That's going to be our tail in reverse + // order. + var _tail = null; + var row = workInProgress.child; + workInProgress.child = null; - scheduleContextWorkOnParentPath( - fiber.return, - renderLanes, - workInProgress - ); // Mark the updated lanes on the list, too. + while (row !== null) { + var currentRow = row.alternate; // New rows can't be content rows. - list.lanes = mergeLanes(list.lanes, renderLanes); // Since we already found a match, we can stop traversing the - // dependency list. + if (currentRow !== null && findFirstSuspended(currentRow) === null) { + // This is the beginning of the main content. + workInProgress.child = row; + break; + } - break; - } + var nextRow = row.sibling; + row.sibling = _tail; + _tail = row; + row = nextRow; + } // TODO: If workInProgress.child is null, we can continue on the tail immediately. - dependency = dependency.next; - } - } else if (fiber.tag === ContextProvider) { - // Don't scan deeper if this is a matching provider - nextFiber = fiber.type === workInProgress.type ? null : fiber.child; - } else if (fiber.tag === DehydratedFragment) { - // If a dehydrated suspense boundary is in this subtree, we don't know - // if it will have any context consumers in it. The best we can do is - // mark it as having updates. - var parentSuspense = fiber.return; + initSuspenseListRenderState( + workInProgress, + true, // isBackwards + _tail, + null, // last + tailMode + ); + break; + } - if (parentSuspense === null) { - throw new Error( - "We just came from a parent so we must have had a parent. This is a bug in React." + case "together": { + initSuspenseListRenderState( + workInProgress, + false, // isBackwards + null, // tail + null, // last + undefined ); + break; } - parentSuspense.lanes = mergeLanes(parentSuspense.lanes, renderLanes); - var _alternate = parentSuspense.alternate; + default: { + // The default reveal order is the same as not having + // a boundary. + workInProgress.memoizedState = null; + } + } + } - if (_alternate !== null) { - _alternate.lanes = mergeLanes(_alternate.lanes, renderLanes); - } // This is intentionally passing this fiber as the parent - // because we want to schedule this fiber as having work - // on its children. We'll use the childLanes on - // this fiber to indicate that a context has changed. + return workInProgress.child; +} - scheduleContextWorkOnParentPath( - parentSuspense, - renderLanes, - workInProgress - ); - nextFiber = fiber.sibling; - } else { - // Traverse down. - nextFiber = fiber.child; - } +function updatePortalComponent(current, workInProgress, renderLanes) { + pushHostContainer(workInProgress, workInProgress.stateNode.containerInfo); + var nextChildren = workInProgress.pendingProps; - if (nextFiber !== null) { - // Set the return pointer of the child to the work-in-progress fiber. - nextFiber.return = fiber; - } else { - // No child. Traverse to next sibling. - nextFiber = fiber; + if (current === null) { + // Portals are special because we don't append the children during mount + // but at commit. Therefore we need to track insertions which the normal + // flow doesn't do during mount. This doesn't happen at the root because + // the root always starts with a "current" with a null child. + // TODO: Consider unifying this with how the root works. + workInProgress.child = reconcileChildFibers( + workInProgress, + null, + nextChildren, + renderLanes + ); + } else { + reconcileChildren(current, workInProgress, nextChildren, renderLanes); + } - while (nextFiber !== null) { - if (nextFiber === workInProgress) { - // We're back to the root of this subtree. Exit. - nextFiber = null; - break; - } + return workInProgress.child; +} - var sibling = nextFiber.sibling; +var hasWarnedAboutUsingNoValuePropOnContextProvider = false; - if (sibling !== null) { - // Set the return pointer of the sibling to the work-in-progress fiber. - sibling.return = nextFiber.return; - nextFiber = sibling; - break; - } // No more siblings. Traverse up. +function updateContextProvider(current, workInProgress, renderLanes) { + var providerType = workInProgress.type; + var context = providerType._context; + var newProps = workInProgress.pendingProps; + var oldProps = workInProgress.memoizedProps; + var newValue = newProps.value; - nextFiber = nextFiber.return; + { + if (!("value" in newProps)) { + if (!hasWarnedAboutUsingNoValuePropOnContextProvider) { + hasWarnedAboutUsingNoValuePropOnContextProvider = true; + + error( + "The `value` prop is required for the ``. Did you misspell it or forget to pass it?" + ); } } - fiber = nextFiber; + var providerPropTypes = workInProgress.type.propTypes; + + if (providerPropTypes) { + checkPropTypes(providerPropTypes, newProps, "prop", "Context.Provider"); + } } -} -function prepareToReadContext(workInProgress, renderLanes) { - currentlyRenderingFiber = workInProgress; - lastContextDependency = null; - lastFullyObservedContext = null; - var dependencies = workInProgress.dependencies; - if (dependencies !== null) { - { - var firstContext = dependencies.firstContext; + pushProvider(workInProgress, context, newValue); - if (firstContext !== null) { - if (includesSomeLane(dependencies.lanes, renderLanes)) { - // Context list has a pending update. Mark that this fiber performed work. - markWorkInProgressReceivedUpdate(); - } // Reset the work-in-progress list + { + if (oldProps !== null) { + var oldValue = oldProps.value; - dependencies.firstContext = null; + if (objectIs(oldValue, newValue)) { + // No change. Bailout early if children are the same. + if (oldProps.children === newProps.children && !hasContextChanged()) { + return bailoutOnAlreadyFinishedWork( + current, + workInProgress, + renderLanes + ); + } + } else { + // The context value changed. Search for matching consumers and schedule + // them to update. + propagateContextChange(workInProgress, context, renderLanes); } } } -} -function readContext(context) { - { - // This warning would fire if you read context inside a Hook like useMemo. - // Unlike the class check below, it's not enforced in production for perf. - if (isDisallowedContextReadInDEV) { - error( - "Context can only be read while React is rendering. " + - "In classes, you can read it in the render method or getDerivedStateFromProps. " + - "In function components, you can read it directly in the function body, but not " + - "inside Hooks like useReducer() or useMemo()." - ); - } - } - - return readContextForConsumer(currentlyRenderingFiber, context); -} -function readContextDuringReconcilation(consumer, context, renderLanes) { - if (currentlyRenderingFiber === null) { - prepareToReadContext(consumer, renderLanes); - } - return readContextForConsumer(consumer, context); + var newChildren = newProps.children; + reconcileChildren(current, workInProgress, newChildren, renderLanes); + return workInProgress.child; } -function readContextForConsumer(consumer, context) { - var value = isPrimaryRenderer - ? context._currentValue - : context._currentValue2; +var hasWarnedAboutUsingContextAsConsumer = false; - if (lastFullyObservedContext === context); - else { - var contextItem = { - context: context, - memoizedValue: value, - next: null - }; +function updateContextConsumer(current, workInProgress, renderLanes) { + var context = workInProgress.type; // The logic below for Context differs depending on PROD or DEV mode. In + // DEV mode, we create a separate object for Context.Consumer that acts + // like a proxy to Context. This proxy object adds unnecessary code in PROD + // so we use the old behaviour (Context.Consumer references Context) to + // reduce size and overhead. The separate object references context via + // a property called "_context", which also gives us the ability to check + // in DEV mode if this property exists or not and warn if it does not. - if (lastContextDependency === null) { - if (consumer === null) { - throw new Error( - "Context can only be read while React is rendering. " + - "In classes, you can read it in the render method or getDerivedStateFromProps. " + - "In function components, you can read it directly in the function body, but not " + - "inside Hooks like useReducer() or useMemo()." - ); - } // This is the first dependency for this component. Create a new list. + { + if (context._context === undefined) { + // This may be because it's a Context (rather than a Consumer). + // Or it may be because it's older React where they're the same thing. + // We only want to warn if we're sure it's a new React. + if (context !== context.Consumer) { + if (!hasWarnedAboutUsingContextAsConsumer) { + hasWarnedAboutUsingContextAsConsumer = true; - lastContextDependency = contextItem; - consumer.dependencies = { - lanes: NoLanes, - firstContext: contextItem - }; + error( + "Rendering directly is not supported and will be removed in " + + "a future major release. Did you mean to render instead?" + ); + } + } } else { - // Append a new context item. - lastContextDependency = lastContextDependency.next = contextItem; + context = context._context; } } - return value; -} + var newProps = workInProgress.pendingProps; + var render = newProps.children; -var ReactCurrentBatchConfig$1 = ReactSharedInternals.ReactCurrentBatchConfig; -var NoTransition = null; -function requestCurrentTransition() { - return ReactCurrentBatchConfig$1.transition; -} // When retrying a Suspense/Offscreen boundary, we restore the cache that was -function getSuspendedCache() { { - return null; - } // This function is called when a Suspense boundary suspends. It returns the -} + if (typeof render !== "function") { + error( + "A context consumer was rendered with multiple children, or a child " + + "that isn't a function. A context consumer expects a single child " + + "that is a function. If you did pass a function, make sure there " + + "is no trailing or leading whitespace around it." + ); + } + } -function markUpdate(workInProgress) { - // Tag the fiber with an update effect. This turns a Placement into - // a PlacementAndUpdate. - workInProgress.flags |= Update; -} + prepareToReadContext(workInProgress, renderLanes); + var newValue = readContext(context); -function markRef(workInProgress) { - workInProgress.flags |= Ref | RefStatic; -} + { + markComponentRenderStarted(workInProgress); + } -function hadNoMutationsEffects(current, completedWork) { - var didBailout = current !== null && current.child === completedWork.child; + var newChildren; - if (didBailout) { - return true; + { + ReactCurrentOwner$2.current = workInProgress; + setIsRendering(true); + newChildren = render(newValue); + setIsRendering(false); } - if ((completedWork.flags & ChildDeletion) !== NoFlags$1) { - return false; - } // TODO: If we move the `hadNoMutationsEffects` call after `bubbleProperties` - // then we only have to check the `completedWork.subtreeFlags`. + { + markComponentRenderStopped(); + } // React DevTools reads this flag. + + workInProgress.flags |= PerformedWork; + reconcileChildren(current, workInProgress, newChildren, renderLanes); + return workInProgress.child; +} + +function markWorkInProgressReceivedUpdate() { + didReceiveUpdate = true; +} - var child = completedWork.child; +function resetSuspendedCurrentOnMountInLegacyMode(current, workInProgress) { + if ((workInProgress.mode & ConcurrentMode) === NoMode) { + if (current !== null) { + // A lazy component only mounts if it suspended inside a non- + // concurrent tree, in an inconsistent state. We want to treat it like + // a new mount, even though an empty version of it already committed. + // Disconnect the alternate pointers. + current.alternate = null; + workInProgress.alternate = null; // Since this is conceptually a new fiber, schedule a Placement effect - while (child !== null) { - if ( - (child.flags & MutationMask) !== NoFlags$1 || - (child.subtreeFlags & MutationMask) !== NoFlags$1 - ) { - return false; + workInProgress.flags |= Placement; } - - child = child.sibling; } - - return true; } -function appendAllChildren( - parent, - workInProgress, - needsVisibilityToggle, - isHidden -) { +function bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes) { + if (current !== null) { + // Reuse previous dependencies + workInProgress.dependencies = current.dependencies; + } + { - // We only have the top Fiber that was created but we need recurse down its - // children to find all the terminal nodes. - var _node = workInProgress.child; + // Don't update "base" render times for bailouts. + stopProfilerTimerIfRunning(); + } - while (_node !== null) { - // eslint-disable-next-line no-labels - if (_node.tag === HostComponent) { - var instance = _node.stateNode; + markSkippedUpdateLanes(workInProgress.lanes); // Check if the children have any pending work. - if (needsVisibilityToggle && isHidden) { - instance = cloneHiddenInstance(instance); - } + if (!includesSomeLane(renderLanes, workInProgress.childLanes)) { + // The children don't have any work either. We can skip them. + // TODO: Once we add back resuming, we should check if the children are + // a work-in-progress set. If so, we need to transfer their effects. + { + return null; + } + } // This fiber doesn't have work, but its subtree does. Clone the child + // fibers and continue. - appendInitialChild(parent, instance); - } else if (_node.tag === HostText) { - var _instance = _node.stateNode; + cloneChildFibers(current, workInProgress); + return workInProgress.child; +} - if (needsVisibilityToggle && isHidden) { - _instance = cloneHiddenTextInstance(); - } +function remountFiber(current, oldWorkInProgress, newWorkInProgress) { + { + var returnFiber = oldWorkInProgress.return; - appendInitialChild(parent, _instance); - } else if (_node.tag === HostPortal); - else if ( - _node.tag === OffscreenComponent && - _node.memoizedState !== null - ) { - // The children in this boundary are hidden. Toggle their visibility - // before appending. - var child = _node.child; + if (returnFiber === null) { + // eslint-disable-next-line react-internal/prod-error-codes + throw new Error("Cannot swap the root fiber."); + } // Disconnect from the old current. + // It will get deleted. - if (child !== null) { - child.return = _node; - } + current.alternate = null; + oldWorkInProgress.alternate = null; // Connect to the new tree. - appendAllChildren(parent, _node, true, true); - } else if (_node.child !== null) { - _node.child.return = _node; - _node = _node.child; - continue; - } + newWorkInProgress.index = oldWorkInProgress.index; + newWorkInProgress.sibling = oldWorkInProgress.sibling; + newWorkInProgress.return = oldWorkInProgress.return; + newWorkInProgress.ref = oldWorkInProgress.ref; // Replace the child/sibling pointers above it. - _node = _node; + if (oldWorkInProgress === returnFiber.child) { + returnFiber.child = newWorkInProgress; + } else { + var prevSibling = returnFiber.child; - if (_node === workInProgress) { - return; + if (prevSibling === null) { + // eslint-disable-next-line react-internal/prod-error-codes + throw new Error("Expected parent to have a child."); } // $FlowFixMe[incompatible-use] found when upgrading Flow - while (_node.sibling === null) { + while (prevSibling.sibling !== oldWorkInProgress) { // $FlowFixMe[incompatible-use] found when upgrading Flow - if (_node.return === null || _node.return === workInProgress) { - return; - } + prevSibling = prevSibling.sibling; - _node = _node.return; + if (prevSibling === null) { + // eslint-disable-next-line react-internal/prod-error-codes + throw new Error("Expected to find the previous sibling."); + } } // $FlowFixMe[incompatible-use] found when upgrading Flow - _node.sibling.return = _node.return; - _node = _node.sibling; + prevSibling.sibling = newWorkInProgress; + } // Delete the old fiber and place the new one. + // Since the old fiber is disconnected, we have to schedule it manually. + + var deletions = returnFiber.deletions; + + if (deletions === null) { + returnFiber.deletions = [current]; + returnFiber.flags |= ChildDeletion; + } else { + deletions.push(current); } + + newWorkInProgress.flags |= Placement; // Restart work from the new fiber. + + return newWorkInProgress; } -} // An unfortunate fork of appendAllChildren because we have two different parent types. +} -function appendAllChildrenToContainer( - containerChildSet, +function checkScheduledUpdateOrContext(current, renderLanes) { + // Before performing an early bailout, we must check if there are pending + // updates or context. + var updateLanes = current.lanes; + + if (includesSomeLane(updateLanes, renderLanes)) { + return true; + } // No pending update, but because context is propagated lazily, we need + + return false; +} + +function attemptEarlyBailoutIfNoScheduledUpdate( + current, workInProgress, - needsVisibilityToggle, - isHidden + renderLanes ) { - { - // We only have the top Fiber that was created but we need recurse down its - // children to find all the terminal nodes. - var node = workInProgress.child; - - while (node !== null) { - // eslint-disable-next-line no-labels - if (node.tag === HostComponent) { - var instance = node.stateNode; + // This fiber does not have any pending work. Bailout without entering + // the begin phase. There's still some bookkeeping we that needs to be done + // in this optimized path, mostly pushing stuff onto the stack. + switch (workInProgress.tag) { + case HostRoot: + pushHostRootContext(workInProgress); + break; - if (needsVisibilityToggle && isHidden) { - instance = cloneHiddenInstance(instance); - } + case HostSingleton: + case HostComponent: + pushHostContext(workInProgress); + break; - appendChildToContainerChildSet(containerChildSet, instance); - } else if (node.tag === HostText) { - var _instance2 = node.stateNode; + case ClassComponent: { + var Component = workInProgress.type; - if (needsVisibilityToggle && isHidden) { - _instance2 = cloneHiddenTextInstance(); - } + if (isContextProvider(Component)) { + pushContextProvider(workInProgress); + } - appendChildToContainerChildSet(containerChildSet, _instance2); - } else if (node.tag === HostPortal); - else if (node.tag === OffscreenComponent && node.memoizedState !== null) { - // The children in this boundary are hidden. Toggle their visibility - // before appending. - var child = node.child; + break; + } - if (child !== null) { - child.return = node; - } // If Offscreen is not in manual mode, detached tree is hidden from user space. + case HostPortal: + pushHostContainer(workInProgress, workInProgress.stateNode.containerInfo); + break; - var _needsVisibilityToggle = !isOffscreenManual(node); + case ContextProvider: { + var newValue = workInProgress.memoizedProps.value; + var context = workInProgress.type._context; + pushProvider(workInProgress, context, newValue); + break; + } - appendAllChildrenToContainer( - containerChildSet, - node, - _needsVisibilityToggle, - true + case Profiler: + { + // Profiler should only call onRender when one of its descendants actually rendered. + var hasChildWork = includesSomeLane( + renderLanes, + workInProgress.childLanes ); - } else if (node.child !== null) { - node.child.return = node; - node = node.child; - continue; - } - - node = node; - if (node === workInProgress) { - return; - } // $FlowFixMe[incompatible-use] found when upgrading Flow + if (hasChildWork) { + workInProgress.flags |= Update; + } - while (node.sibling === null) { - // $FlowFixMe[incompatible-use] found when upgrading Flow - if (node.return === null || node.return === workInProgress) { - return; + { + // Reset effect durations for the next eventual effect phase. + // These are reset during render to allow the DevTools commit hook a chance to read them, + var stateNode = workInProgress.stateNode; + stateNode.effectDuration = 0; + stateNode.passiveEffectDuration = 0; } + } - node = node.return; - } // $FlowFixMe[incompatible-use] found when upgrading Flow - - node.sibling.return = node.return; - node = node.sibling; - } - } -} + break; -function updateHostContainer(current, workInProgress) { - { - var portalOrRoot = workInProgress.stateNode; - var childrenUnchanged = hadNoMutationsEffects(current, workInProgress); + case SuspenseComponent: { + var state = workInProgress.memoizedState; - if (childrenUnchanged); - else { - var container = portalOrRoot.containerInfo; - var newChildSet = createContainerChildSet(container); // If children might have changed, we have to add them all to the set. + if (state !== null) { + if (state.dehydrated !== null) { + // We're not going to render the children, so this is just to maintain + // push/pop symmetry + pushPrimaryTreeSuspenseHandler(workInProgress); // We know that this component will suspend again because if it has + // been unsuspended it has committed as a resolved Suspense component. + // If it needs to be retried, it should have work scheduled on it. - appendAllChildrenToContainer(newChildSet, workInProgress, false, false); - portalOrRoot.pendingChildren = newChildSet; // Schedule an update on the container to swap out the container. + workInProgress.flags |= DidCapture; // We should never render the children of a dehydrated boundary until we + // upgrade it. We return null instead of bailoutOnAlreadyFinishedWork. - markUpdate(workInProgress); - finalizeContainerChildren(container, newChildSet); - } - } -} + return null; + } // If this boundary is currently timed out, we need to decide + // whether to retry the primary children, or to skip over it and + // go straight to the fallback. Check the priority of the primary + // child fragment. -function updateHostComponent( - current, - workInProgress, - type, - newProps, - renderLanes -) { - { - var currentInstance = current.stateNode; - var _oldProps = current.memoizedProps; // If there are no effects associated with this node, then none of our children had any updates. - // This guarantees that we can reuse all of them. + var primaryChildFragment = workInProgress.child; + var primaryChildLanes = primaryChildFragment.childLanes; - var childrenUnchanged = hadNoMutationsEffects(current, workInProgress); + if (includesSomeLane(renderLanes, primaryChildLanes)) { + // The primary children have pending work. Use the normal path + // to attempt to render the primary children again. + return updateSuspenseComponent(current, workInProgress, renderLanes); + } else { + // The primary child fragment does not have pending work marked + // on it + pushPrimaryTreeSuspenseHandler(workInProgress); // The primary children do not have pending work with sufficient + // priority. Bailout. - if (childrenUnchanged && _oldProps === newProps) { - // No changes, just reuse the existing instance. - // Note that this might release a previous clone. - workInProgress.stateNode = currentInstance; - return; - } + var child = bailoutOnAlreadyFinishedWork( + current, + workInProgress, + renderLanes + ); - var recyclableInstance = workInProgress.stateNode; + if (child !== null) { + // The fallback children have pending work. Skip over the + // primary children and work on the fallback. + return child.sibling; + } else { + // Note: We can return `null` here because we already checked + // whether there were nested context consumers, via the call to + // `bailoutOnAlreadyFinishedWork` above. + return null; + } + } + } else { + pushPrimaryTreeSuspenseHandler(workInProgress); + } - getHostContext(); + break; + } - var _updatePayload = null; + case SuspenseListComponent: { + var didSuspendBefore = (current.flags & DidCapture) !== NoFlags$1; - if (_oldProps !== newProps) { - _updatePayload = prepareUpdate( - recyclableInstance, - type, - _oldProps, - newProps + var _hasChildWork = includesSomeLane( + renderLanes, + workInProgress.childLanes ); - } - if (childrenUnchanged && _updatePayload === null) { - // No changes, just reuse the existing instance. - // Note that this might release a previous clone. - workInProgress.stateNode = currentInstance; - return; - } + if (didSuspendBefore) { + if (_hasChildWork) { + // If something was in fallback state last time, and we have all the + // same children then we're still in progressive loading state. + // Something might get unblocked by state updates or retries in the + // tree which will affect the tail. So we need to use the normal + // path to compute the correct tail. + return updateSuspenseListComponent( + current, + workInProgress, + renderLanes + ); + } // If none of the children had any work, that means that none of + // them got retried so they'll still be blocked in the same way + // as before. We can fast bail out. - var newInstance = cloneInstance( - currentInstance, - _updatePayload, - type, - _oldProps, - newProps, - workInProgress, - childrenUnchanged - ); + workInProgress.flags |= DidCapture; + } // If nothing suspended before and we're rendering the same children, + // then the tail doesn't matter. Anything new that suspends will work + // in the "together" mode, so we can continue from the state we had. - workInProgress.stateNode = newInstance; + var renderState = workInProgress.memoizedState; - if (childrenUnchanged) { - // If there are no other effects in this tree, we need to flag this node as having one. - // Even though we're not going to use it for anything. - // Otherwise parents won't know that there are new children to propagate upwards. - markUpdate(workInProgress); - } else { - // If children might have changed, we have to add them all to the set. - appendAllChildren(newInstance, workInProgress, false, false); - } - } -} // TODO: This should ideally move to begin phase, but currently the instance is -// not created until the complete phase. For our existing use cases, host nodes -// that suspend don't have children, so it doesn't matter. But that might not -// always be true in the future. + if (renderState !== null) { + // Reset to the "together" mode in case we've started a different + // update in the past but didn't complete it. + renderState.rendering = null; + renderState.tail = null; + renderState.lastEffect = null; + } -function preloadInstanceAndSuspendIfNeeded( - workInProgress, - type, - props, - renderLanes -) { - // Ask the renderer if this instance should suspend the commit. - { - // If this flag was set previously, we can remove it. The flag represents - // whether this particular set of props might ever need to suspend. The - // safest thing to do is for maySuspendCommit to always return true, but - // if the renderer is reasonably confident that the underlying resource - // won't be evicted, it can return false as a performance optimization. - workInProgress.flags &= ~SuspenseyCommit; - return; - } // Mark this fiber with a flag. We use this right before the commit phase to -} + pushSuspenseListContext(workInProgress, suspenseStackCursor.current); -function scheduleRetryEffect(workInProgress, retryQueue) { - var wakeables = retryQueue; + if (_hasChildWork) { + break; + } else { + // If none of the children had any work, that means that none of + // them got retried so they'll still be blocked in the same way + // as before. We can fast bail out. + return null; + } + } - if (wakeables !== null) { - // Schedule an effect to attach a retry listener to the promise. - // TODO: Move to passive phase - workInProgress.flags |= Update; - } else { - // This boundary suspended, but no wakeables were added to the retry - // queue. Check if the renderer suspended commit. If so, this means - // that once the fallback is committed, we can immediately retry - // rendering again, because rendering wasn't actually blocked. Only - // the commit phase. - // TODO: Consider a model where we always schedule an immediate retry, even - // for normal Suspense. That way the retry can partially render up to the - // first thing that suspends. - if (workInProgress.flags & ScheduleRetry) { - var retryLane = // TODO: This check should probably be moved into claimNextRetryLane - // I also suspect that we need some further consolidation of offscreen - // and retry lanes. - workInProgress.tag !== OffscreenComponent - ? claimNextRetryLane() - : OffscreenLane; - workInProgress.lanes = mergeLanes(workInProgress.lanes, retryLane); + case OffscreenComponent: + case LegacyHiddenComponent: { + // Need to check if the tree still needs to be deferred. This is + // almost identical to the logic used in the normal update path, + // so we'll just enter that. The only difference is we'll bail out + // at the next level instead of this one, because the child props + // have not changed. Which is fine. + // TODO: Probably should refactor `beginWork` to split the bailout + // path from the normal path. I'm tempted to do a labeled break here + // but I won't :) + workInProgress.lanes = NoLanes; + return updateOffscreenComponent(current, workInProgress, renderLanes); } } + + return bailoutOnAlreadyFinishedWork(current, workInProgress, renderLanes); } -function updateHostText(current, workInProgress, oldText, newText) { +function beginWork$1(current, workInProgress, renderLanes) { { - if (oldText !== newText) { - // If the text content differs, we'll create a new text instance for it. - var rootContainerInstance = getRootHostContainer(); - var currentHostContext = getHostContext(); - workInProgress.stateNode = createTextInstance( - newText, - rootContainerInstance, - currentHostContext, - workInProgress - ); // We'll have to mark it as having an effect, even though we won't use the effect for anything. - // This lets the parents know that at least one of their children has changed. - - markUpdate(workInProgress); - } else { - workInProgress.stateNode = current.stateNode; + if (workInProgress._debugNeedsRemount && current !== null) { + // This will restart the begin phase with a new fiber. + return remountFiber( + current, + workInProgress, + createFiberFromTypeAndProps( + workInProgress.type, + workInProgress.key, + workInProgress.pendingProps, + workInProgress._debugOwner || null, + workInProgress.mode, + workInProgress.lanes + ) + ); } } -} -function cutOffTailIfNeeded(renderState, hasRenderedATailFallback) { - switch (renderState.tailMode) { - case "hidden": { - // Any insertions at the end of the tail list after this point - // should be invisible. If there are already mounted boundaries - // anything before them are not considered for collapsing. - // Therefore we need to go through the whole tail to find if - // there are any. - var tailNode = renderState.tail; - var lastTailNode = null; + if (current !== null) { + var oldProps = current.memoizedProps; + var newProps = workInProgress.pendingProps; - while (tailNode !== null) { - if (tailNode.alternate !== null) { - lastTailNode = tailNode; - } + if ( + oldProps !== newProps || + hasContextChanged() || // Force a re-render if the implementation changed due to hot reload: + workInProgress.type !== current.type + ) { + // If props or context changed, mark the fiber as having performed work. + // This may be unset if the props are determined to be equal later (memo). + didReceiveUpdate = true; + } else { + // Neither props nor legacy context changes. Check if there's a pending + // update or context change. + var hasScheduledUpdateOrContext = checkScheduledUpdateOrContext( + current, + renderLanes + ); - tailNode = tailNode.sibling; - } // Next we're simply going to delete all insertions after the - // last rendered item. + if ( + !hasScheduledUpdateOrContext && // If this is the second pass of an error or suspense boundary, there + // may not be work scheduled on `current`, so we check for this flag. + (workInProgress.flags & DidCapture) === NoFlags$1 + ) { + // No pending updates or context. Bail out now. + didReceiveUpdate = false; + return attemptEarlyBailoutIfNoScheduledUpdate( + current, + workInProgress, + renderLanes + ); + } - if (lastTailNode === null) { - // All remaining items in the tail are insertions. - renderState.tail = null; + if ((current.flags & ForceUpdateForLegacySuspense) !== NoFlags$1) { + // This is a special case that only exists for legacy mode. + // See https://github.com/facebook/react/pull/19216. + didReceiveUpdate = true; } else { - // Detach the insertion after the last node that was already - // inserted. - lastTailNode.sibling = null; + // An update was scheduled on this fiber, but there are no new props + // nor legacy context. Set this to false. If an update queue or context + // consumer produces a changed value, it will set this to true. Otherwise, + // the component will assume the children have not changed and bail out. + didReceiveUpdate = false; } + } + } else { + didReceiveUpdate = false; + } // Before entering the begin phase, clear pending update priority. + // TODO: This assumes that we're about to evaluate the component and process + // the update queue. However, there's an exception: SimpleMemoComponent + // sometimes bails out later in the begin phase. This indicates that we should + // move this assignment out of the common path and into each branch. - break; + workInProgress.lanes = NoLanes; + + switch (workInProgress.tag) { + case IndeterminateComponent: { + return mountIndeterminateComponent( + current, + workInProgress, + workInProgress.type, + renderLanes + ); } - case "collapsed": { - // Any insertions at the end of the tail list after this point - // should be invisible. If there are already mounted boundaries - // anything before them are not considered for collapsing. - // Therefore we need to go through the whole tail to find if - // there are any. - var _tailNode = renderState.tail; - var _lastTailNode = null; + case LazyComponent: { + var elementType = workInProgress.elementType; + return mountLazyComponent( + current, + workInProgress, + elementType, + renderLanes + ); + } - while (_tailNode !== null) { - if (_tailNode.alternate !== null) { - _lastTailNode = _tailNode; - } + case FunctionComponent: { + var Component = workInProgress.type; + var unresolvedProps = workInProgress.pendingProps; + var resolvedProps = + workInProgress.elementType === Component + ? unresolvedProps + : resolveDefaultProps(Component, unresolvedProps); + return updateFunctionComponent( + current, + workInProgress, + Component, + resolvedProps, + renderLanes + ); + } - _tailNode = _tailNode.sibling; - } // Next we're simply going to delete all insertions after the - // last rendered item. + case ClassComponent: { + var _Component = workInProgress.type; + var _unresolvedProps = workInProgress.pendingProps; - if (_lastTailNode === null) { - // All remaining items in the tail are insertions. - if (!hasRenderedATailFallback && renderState.tail !== null) { - // We suspended during the head. We want to show at least one - // row at the tail. So we'll keep on and cut off the rest. - renderState.tail.sibling = null; - } else { - renderState.tail = null; - } - } else { - // Detach the insertion after the last node that was already - // inserted. - _lastTailNode.sibling = null; - } + var _resolvedProps = + workInProgress.elementType === _Component + ? _unresolvedProps + : resolveDefaultProps(_Component, _unresolvedProps); - break; + return updateClassComponent( + current, + workInProgress, + _Component, + _resolvedProps, + renderLanes + ); } - } -} -function bubbleProperties(completedWork) { - var didBailout = - completedWork.alternate !== null && - completedWork.alternate.child === completedWork.child; - var newChildLanes = NoLanes; - var subtreeFlags = NoFlags$1; + case HostRoot: + return updateHostRoot(current, workInProgress, renderLanes); - if (!didBailout) { - // Bubble up the earliest expiration time. - if ((completedWork.mode & ProfileMode) !== NoMode) { - // In profiling mode, resetChildExpirationTime is also used to reset - // profiler durations. - var actualDuration = completedWork.actualDuration; - var treeBaseDuration = completedWork.selfBaseDuration; - var child = completedWork.child; + case HostHoistable: - while (child !== null) { - newChildLanes = mergeLanes( - newChildLanes, - mergeLanes(child.lanes, child.childLanes) - ); - subtreeFlags |= child.subtreeFlags; - subtreeFlags |= child.flags; // When a fiber is cloned, its actualDuration is reset to 0. This value will - // only be updated if work is done on the fiber (i.e. it doesn't bailout). - // When work is done, it should bubble to the parent's actualDuration. If - // the fiber has not been cloned though, (meaning no work was done), then - // this value will reflect the amount of time spent working on a previous - // render. In that case it should not bubble. We determine whether it was - // cloned by comparing the child pointer. - // $FlowFixMe[unsafe-addition] addition with possible null/undefined value + // eslint-disable-next-line no-fallthrough - actualDuration += child.actualDuration; // $FlowFixMe[unsafe-addition] addition with possible null/undefined value + case HostSingleton: - treeBaseDuration += child.treeBaseDuration; - child = child.sibling; - } + // eslint-disable-next-line no-fallthrough - completedWork.actualDuration = actualDuration; - completedWork.treeBaseDuration = treeBaseDuration; - } else { - var _child = completedWork.child; + case HostComponent: + return updateHostComponent$1(current, workInProgress, renderLanes); - while (_child !== null) { - newChildLanes = mergeLanes( - newChildLanes, - mergeLanes(_child.lanes, _child.childLanes) - ); - subtreeFlags |= _child.subtreeFlags; - subtreeFlags |= _child.flags; // Update the return pointer so the tree is consistent. This is a code - // smell because it assumes the commit phase is never concurrent with - // the render phase. Will address during refactor to alternate model. + case HostText: + return updateHostText$1(); - _child.return = completedWork; - _child = _child.sibling; - } + case SuspenseComponent: + return updateSuspenseComponent(current, workInProgress, renderLanes); + + case HostPortal: + return updatePortalComponent(current, workInProgress, renderLanes); + + case ForwardRef: { + var type = workInProgress.type; + var _unresolvedProps2 = workInProgress.pendingProps; + + var _resolvedProps2 = + workInProgress.elementType === type + ? _unresolvedProps2 + : resolveDefaultProps(type, _unresolvedProps2); + + return updateForwardRef( + current, + workInProgress, + type, + _resolvedProps2, + renderLanes + ); } - completedWork.subtreeFlags |= subtreeFlags; - } else { - // Bubble up the earliest expiration time. - if ((completedWork.mode & ProfileMode) !== NoMode) { - // In profiling mode, resetChildExpirationTime is also used to reset - // profiler durations. - var _treeBaseDuration = completedWork.selfBaseDuration; - var _child2 = completedWork.child; + case Fragment: + return updateFragment(current, workInProgress, renderLanes); + + case Mode: + return updateMode(current, workInProgress, renderLanes); + + case Profiler: + return updateProfiler(current, workInProgress, renderLanes); + + case ContextProvider: + return updateContextProvider(current, workInProgress, renderLanes); + + case ContextConsumer: + return updateContextConsumer(current, workInProgress, renderLanes); - while (_child2 !== null) { - newChildLanes = mergeLanes( - newChildLanes, - mergeLanes(_child2.lanes, _child2.childLanes) - ); // "Static" flags share the lifetime of the fiber/hook they belong to, - // so we should bubble those up even during a bailout. All the other - // flags have a lifetime only of a single render + commit, so we should - // ignore them. + case MemoComponent: { + var _type2 = workInProgress.type; + var _unresolvedProps3 = workInProgress.pendingProps; // Resolve outer props first, then resolve inner props. - subtreeFlags |= _child2.subtreeFlags & StaticMask; - subtreeFlags |= _child2.flags & StaticMask; // $FlowFixMe[unsafe-addition] addition with possible null/undefined value + var _resolvedProps3 = resolveDefaultProps(_type2, _unresolvedProps3); - _treeBaseDuration += _child2.treeBaseDuration; - _child2 = _child2.sibling; + { + if (workInProgress.type !== workInProgress.elementType) { + var outerPropTypes = _type2.propTypes; + + if (outerPropTypes) { + checkPropTypes( + outerPropTypes, + _resolvedProps3, // Resolved for outer only + "prop", + getComponentNameFromType(_type2) + ); + } + } } - completedWork.treeBaseDuration = _treeBaseDuration; - } else { - var _child3 = completedWork.child; + _resolvedProps3 = resolveDefaultProps(_type2.type, _resolvedProps3); + return updateMemoComponent( + current, + workInProgress, + _type2, + _resolvedProps3, + renderLanes + ); + } - while (_child3 !== null) { - newChildLanes = mergeLanes( - newChildLanes, - mergeLanes(_child3.lanes, _child3.childLanes) - ); // "Static" flags share the lifetime of the fiber/hook they belong to, - // so we should bubble those up even during a bailout. All the other - // flags have a lifetime only of a single render + commit, so we should - // ignore them. + case SimpleMemoComponent: { + return updateSimpleMemoComponent( + current, + workInProgress, + workInProgress.type, + workInProgress.pendingProps, + renderLanes + ); + } - subtreeFlags |= _child3.subtreeFlags & StaticMask; - subtreeFlags |= _child3.flags & StaticMask; // Update the return pointer so the tree is consistent. This is a code - // smell because it assumes the commit phase is never concurrent with - // the render phase. Will address during refactor to alternate model. + case IncompleteClassComponent: { + var _Component2 = workInProgress.type; + var _unresolvedProps4 = workInProgress.pendingProps; - _child3.return = completedWork; - _child3 = _child3.sibling; - } + var _resolvedProps4 = + workInProgress.elementType === _Component2 + ? _unresolvedProps4 + : resolveDefaultProps(_Component2, _unresolvedProps4); + + return mountIncompleteClassComponent( + current, + workInProgress, + _Component2, + _resolvedProps4, + renderLanes + ); } - completedWork.subtreeFlags |= subtreeFlags; - } + case SuspenseListComponent: { + return updateSuspenseListComponent(current, workInProgress, renderLanes); + } - completedWork.childLanes = newChildLanes; - return didBailout; -} + case ScopeComponent: { + break; + } -function completeDehydratedSuspenseBoundary( - current, - workInProgress, - nextState -) { - var wasHydrated = popHydrationState(); + case OffscreenComponent: { + return updateOffscreenComponent(current, workInProgress, renderLanes); + } - if (nextState !== null && nextState.dehydrated !== null) { - // We might be inside a hydration state the first time we're picking up this - // Suspense boundary, and also after we've reentered it for further hydration. - if (current === null) { - if (!wasHydrated) { - throw new Error( - "A dehydrated suspense component was completed without a hydrated node. " + - "This is probably a bug in React." + case LegacyHiddenComponent: { + { + return updateLegacyHiddenComponent( + current, + workInProgress, + renderLanes ); } + } + } - prepareToHydrateHostSuspenseInstance(); - bubbleProperties(workInProgress); + throw new Error( + "Unknown unit of work tag (" + + workInProgress.tag + + "). This error is likely caused by a bug in " + + "React. Please file an issue." + ); +} - { - if ((workInProgress.mode & ProfileMode) !== NoMode) { - var isTimedOutSuspense = nextState !== null; +var valueCursor = createCursor(null); - if (isTimedOutSuspense) { - // Don't count time spent in a timed out Suspense subtree as part of the base duration. - var primaryChildFragment = workInProgress.child; +var renderer2CursorDEV; - if (primaryChildFragment !== null) { - // $FlowFixMe Flow doesn't support type casting in combination with the -= operator - workInProgress.treeBaseDuration -= - primaryChildFragment.treeBaseDuration; - } - } - } - } +{ + renderer2CursorDEV = createCursor(null); +} - return false; - } else { - if ((workInProgress.flags & DidCapture) === NoFlags$1) { - // This boundary did not suspend so it's now hydrated and unsuspended. - workInProgress.memoizedState = null; - } // If nothing suspended, we need to schedule an effect to mark this boundary - // as having hydrated so events know that they're free to be invoked. - // It's also a signal to replay events and the suspense callback. - // If something suspended, schedule an effect to attach retry listeners. - // So we might as well always mark this. +var rendererSigil; - workInProgress.flags |= Update; - bubbleProperties(workInProgress); +{ + // Use this to detect multiple renderers using the same context + rendererSigil = {}; +} - { - if ((workInProgress.mode & ProfileMode) !== NoMode) { - var _isTimedOutSuspense = nextState !== null; +var currentlyRenderingFiber = null; +var lastContextDependency = null; +var lastFullyObservedContext = null; +var isDisallowedContextReadInDEV = false; +function resetContextDependencies() { + // This is called right before React yields execution, to ensure `readContext` + // cannot be called outside the render phase. + currentlyRenderingFiber = null; + lastContextDependency = null; + lastFullyObservedContext = null; - if (_isTimedOutSuspense) { - // Don't count time spent in a timed out Suspense subtree as part of the base duration. - var _primaryChildFragment = workInProgress.child; + { + isDisallowedContextReadInDEV = false; + } +} +function enterDisallowedContextReadInDEV() { + { + isDisallowedContextReadInDEV = true; + } +} +function exitDisallowedContextReadInDEV() { + { + isDisallowedContextReadInDEV = false; + } +} +function pushProvider(providerFiber, context, nextValue) { + { + push(valueCursor, context._currentValue2, providerFiber); + context._currentValue2 = nextValue; - if (_primaryChildFragment !== null) { - // $FlowFixMe Flow doesn't support type casting in combination with the -= operator - workInProgress.treeBaseDuration -= - _primaryChildFragment.treeBaseDuration; - } - } - } + { + push(renderer2CursorDEV, context._currentRenderer2, providerFiber); + + if ( + context._currentRenderer2 !== undefined && + context._currentRenderer2 !== null && + context._currentRenderer2 !== rendererSigil + ) { + error( + "Detected multiple renderers concurrently rendering the " + + "same context provider. This is currently unsupported." + ); } - return false; + context._currentRenderer2 = rendererSigil; } - } else { - // Successfully completed this tree. If this was a forced client render, - // there may have been recoverable errors during first hydration - // attempt. If so, add them to a queue so we can log them in the - // commit phase. - upgradeHydrationErrorsToRecoverable(); // Fall through to normal Suspense path - - return true; } } +function popProvider(context, providerFiber) { + var currentValue = valueCursor.current; -function completeWork(current, workInProgress, renderLanes) { - var newProps = workInProgress.pendingProps; // Note: This intentionally doesn't check if we're hydrating because comparing - - switch (workInProgress.tag) { - case IndeterminateComponent: - case LazyComponent: - case SimpleMemoComponent: - case FunctionComponent: - case ForwardRef: - case Fragment: - case Mode: - case Profiler: - case ContextConsumer: - case MemoComponent: - bubbleProperties(workInProgress); - return null; + { + if (currentValue === REACT_SERVER_CONTEXT_DEFAULT_VALUE_NOT_LOADED) { + context._currentValue2 = context._defaultValue; + } else { + context._currentValue2 = currentValue; + } - case ClassComponent: { - var Component = workInProgress.type; + { + var currentRenderer2 = renderer2CursorDEV.current; + pop(renderer2CursorDEV, providerFiber); + context._currentRenderer2 = currentRenderer2; + } + } - if (isContextProvider(Component)) { - popContext(workInProgress); - } + pop(valueCursor, providerFiber); +} +function scheduleContextWorkOnParentPath(parent, renderLanes, propagationRoot) { + // Update the child lanes of all the ancestors, including the alternates. + var node = parent; - bubbleProperties(workInProgress); - return null; - } + while (node !== null) { + var alternate = node.alternate; - case HostRoot: { - var fiberRoot = workInProgress.stateNode; - popHostContainer(workInProgress); - popTopLevelContextObject(workInProgress); - resetWorkInProgressVersions(); + if (!isSubsetOfLanes(node.childLanes, renderLanes)) { + node.childLanes = mergeLanes(node.childLanes, renderLanes); - if (fiberRoot.pendingContext) { - fiberRoot.context = fiberRoot.pendingContext; - fiberRoot.pendingContext = null; + if (alternate !== null) { + alternate.childLanes = mergeLanes(alternate.childLanes, renderLanes); } + } else if ( + alternate !== null && + !isSubsetOfLanes(alternate.childLanes, renderLanes) + ) { + alternate.childLanes = mergeLanes(alternate.childLanes, renderLanes); + } else; - if (current === null || current.child === null) { - // If we hydrated, pop so that we can delete any remaining children - // that weren't hydrated. - var wasHydrated = popHydrationState(); + if (node === propagationRoot) { + break; + } - if (wasHydrated) { - // If we hydrated, then we'll need to schedule an update for - // the commit side-effects on the root. - markUpdate(workInProgress); - } else { - if (current !== null) { - var prevState = current.memoizedState; + node = node.return; + } - if ( - // Check if this is a client root - !prevState.isDehydrated || // Check if we reverted to client rendering (e.g. due to an error) - (workInProgress.flags & ForceClientRender) !== NoFlags$1 - ) { - // Schedule an effect to clear this container at the start of the - // next commit. This handles the case of React rendering into a - // container with previous children. It's also safe to do for - // updates too, because current.child would only be null if the - // previous render was null (so the container would already - // be empty). - workInProgress.flags |= Snapshot; // If this was a forced client render, there may have been - // recoverable errors during first hydration attempt. If so, add - // them to a queue so we can log them in the commit phase. + { + if (node !== propagationRoot) { + error( + "Expected to find the propagation root when scheduling context work. " + + "This error is likely caused by a bug in React. Please file an issue." + ); + } + } +} +function propagateContextChange(workInProgress, context, renderLanes) { + { + propagateContextChange_eager(workInProgress, context, renderLanes); + } +} - upgradeHydrationErrorsToRecoverable(); - } - } - } - } +function propagateContextChange_eager(workInProgress, context, renderLanes) { + var fiber = workInProgress.child; - updateHostContainer(current, workInProgress); - bubbleProperties(workInProgress); + if (fiber !== null) { + // Set the return pointer of the child to the work-in-progress fiber. + fiber.return = workInProgress; + } - return null; - } + while (fiber !== null) { + var nextFiber = void 0; // Visit this fiber. - case HostHoistable: - // eslint-disable-next-line-no-fallthrough + var list = fiber.dependencies; - case HostSingleton: - // eslint-disable-next-line-no-fallthrough + if (list !== null) { + nextFiber = fiber.child; + var dependency = list.firstContext; - case HostComponent: { - popHostContext(workInProgress); - var _type = workInProgress.type; + while (dependency !== null) { + // Check if the context matches. + if (dependency.context === context) { + // Match! Schedule an update on this fiber. + if (fiber.tag === ClassComponent) { + // Schedule a force update on the work-in-progress. + var lane = pickArbitraryLane(renderLanes); + var update = createUpdate(lane); + update.tag = ForceUpdate; // TODO: Because we don't have a work-in-progress, this will add the + // update to the current fiber, too, which means it will persist even if + // this render is thrown away. Since it's a race condition, not sure it's + // worth fixing. + // Inlined `enqueueUpdate` to remove interleaved update check - if (current !== null && workInProgress.stateNode != null) { - updateHostComponent(current, workInProgress, _type, newProps); + var updateQueue = fiber.updateQueue; - if (current.ref !== workInProgress.ref) { - markRef(workInProgress); - } - } else { - if (!newProps) { - if (workInProgress.stateNode === null) { - throw new Error( - "We must have new props for new mounts. This error is likely " + - "caused by a bug in React. Please file an issue." - ); - } // This can happen when we abort work. + if (updateQueue === null); + else { + var sharedQueue = updateQueue.shared; + var pending = sharedQueue.pending; - bubbleProperties(workInProgress); - return null; - } + if (pending === null) { + // This is the first update. Create a circular list. + update.next = update; + } else { + update.next = pending.next; + pending.next = update; + } - var _currentHostContext2 = getHostContext(); // TODO: Move createInstance to beginWork and keep it on a context - // "stack" as the parent. Then append children as we go in beginWork - // or completeWork depending on whether we want to add them top->down or - // bottom->up. Top->down is faster in IE11. + sharedQueue.pending = update; + } + } - var _wasHydrated2 = popHydrationState(); + fiber.lanes = mergeLanes(fiber.lanes, renderLanes); + var alternate = fiber.alternate; - if (_wasHydrated2) { - // TODO: Move this and createInstance step into the beginPhase - // to consolidate. - if (prepareToHydrateHostInstance()) { - // If changes to the hydrated node need to be applied at the - // commit-phase we mark this as such. - markUpdate(workInProgress); + if (alternate !== null) { + alternate.lanes = mergeLanes(alternate.lanes, renderLanes); } - } else { - var _rootContainerInstance = getRootHostContainer(); - var _instance3 = createInstance( - _type, - newProps, - _rootContainerInstance, - _currentHostContext2, + scheduleContextWorkOnParentPath( + fiber.return, + renderLanes, workInProgress - ); + ); // Mark the updated lanes on the list, too. - appendAllChildren(_instance3, workInProgress, false, false); - workInProgress.stateNode = _instance3; // Certain renderers require commit-time effects for initial mount. - } + list.lanes = mergeLanes(list.lanes, renderLanes); // Since we already found a match, we can stop traversing the + // dependency list. - if (workInProgress.ref !== null) { - // If there is a ref on a host node we need to schedule a callback - markRef(workInProgress); + break; } + + dependency = dependency.next; + } + } else if (fiber.tag === ContextProvider) { + // Don't scan deeper if this is a matching provider + nextFiber = fiber.type === workInProgress.type ? null : fiber.child; + } else if (fiber.tag === DehydratedFragment) { + // If a dehydrated suspense boundary is in this subtree, we don't know + // if it will have any context consumers in it. The best we can do is + // mark it as having updates. + var parentSuspense = fiber.return; + + if (parentSuspense === null) { + throw new Error( + "We just came from a parent so we must have had a parent. This is a bug in React." + ); } - bubbleProperties(workInProgress); // This must come at the very end of the complete phase, because it might - // throw to suspend, and if the resource immediately loads, the work loop - // will resume rendering as if the work-in-progress completed. So it must - // fully complete. + parentSuspense.lanes = mergeLanes(parentSuspense.lanes, renderLanes); + var _alternate = parentSuspense.alternate; - preloadInstanceAndSuspendIfNeeded(workInProgress); - return null; - } + if (_alternate !== null) { + _alternate.lanes = mergeLanes(_alternate.lanes, renderLanes); + } // This is intentionally passing this fiber as the parent + // because we want to schedule this fiber as having work + // on its children. We'll use the childLanes on + // this fiber to indicate that a context has changed. - case HostText: { - var newText = newProps; + scheduleContextWorkOnParentPath( + parentSuspense, + renderLanes, + workInProgress + ); + nextFiber = fiber.sibling; + } else { + // Traverse down. + nextFiber = fiber.child; + } - if (current && workInProgress.stateNode != null) { - var oldText = current.memoizedProps; // If we have an alternate, that means this is an update and we need - // to schedule a side-effect to do the updates. + if (nextFiber !== null) { + // Set the return pointer of the child to the work-in-progress fiber. + nextFiber.return = fiber; + } else { + // No child. Traverse to next sibling. + nextFiber = fiber; - updateHostText(current, workInProgress, oldText, newText); - } else { - if (typeof newText !== "string") { - if (workInProgress.stateNode === null) { - throw new Error( - "We must have new props for new mounts. This error is likely " + - "caused by a bug in React. Please file an issue." - ); - } // This can happen when we abort work. + while (nextFiber !== null) { + if (nextFiber === workInProgress) { + // We're back to the root of this subtree. Exit. + nextFiber = null; + break; } - var _rootContainerInstance2 = getRootHostContainer(); + var sibling = nextFiber.sibling; + + if (sibling !== null) { + // Set the return pointer of the sibling to the work-in-progress fiber. + sibling.return = nextFiber.return; + nextFiber = sibling; + break; + } // No more siblings. Traverse up. + + nextFiber = nextFiber.return; + } + } - var _currentHostContext3 = getHostContext(); + fiber = nextFiber; + } +} +function prepareToReadContext(workInProgress, renderLanes) { + currentlyRenderingFiber = workInProgress; + lastContextDependency = null; + lastFullyObservedContext = null; + var dependencies = workInProgress.dependencies; - var _wasHydrated3 = popHydrationState(); + if (dependencies !== null) { + { + var firstContext = dependencies.firstContext; - if (_wasHydrated3) { - if (prepareToHydrateHostTextInstance()) { - markUpdate(workInProgress); - } - } else { - workInProgress.stateNode = createTextInstance( - newText, - _rootContainerInstance2, - _currentHostContext3, - workInProgress - ); - } - } + if (firstContext !== null) { + if (includesSomeLane(dependencies.lanes, renderLanes)) { + // Context list has a pending update. Mark that this fiber performed work. + markWorkInProgressReceivedUpdate(); + } // Reset the work-in-progress list - bubbleProperties(workInProgress); - return null; + dependencies.firstContext = null; + } + } + } +} +function readContext(context) { + { + // This warning would fire if you read context inside a Hook like useMemo. + // Unlike the class check below, it's not enforced in production for perf. + if (isDisallowedContextReadInDEV) { + error( + "Context can only be read while React is rendering. " + + "In classes, you can read it in the render method or getDerivedStateFromProps. " + + "In function components, you can read it directly in the function body, but not " + + "inside Hooks like useReducer() or useMemo()." + ); } + } - case SuspenseComponent: { - popSuspenseHandler(workInProgress); - var nextState = workInProgress.memoizedState; // Special path for dehydrated boundaries. We may eventually move this - // to its own fiber type so that we can add other kinds of hydration - // boundaries that aren't associated with a Suspense tree. In anticipation - // of such a refactor, all the hydration logic is contained in - // this branch. + return readContextForConsumer(currentlyRenderingFiber, context); +} +function readContextDuringReconcilation(consumer, context, renderLanes) { + if (currentlyRenderingFiber === null) { + prepareToReadContext(consumer, renderLanes); + } - if ( - current === null || - (current.memoizedState !== null && - current.memoizedState.dehydrated !== null) - ) { - var fallthroughToNormalSuspensePath = - completeDehydratedSuspenseBoundary( - current, - workInProgress, - nextState - ); + return readContextForConsumer(consumer, context); +} - if (!fallthroughToNormalSuspensePath) { - if (workInProgress.flags & ForceClientRender) { - // Special case. There were remaining unhydrated nodes. We treat - // this as a mismatch. Revert to client rendering. - return workInProgress; - } else { - // Did not finish hydrating, either because this is the initial - // render or because something suspended. - return null; - } - } // Continue with the normal Suspense path. - } +function readContextForConsumer(consumer, context) { + var value = context._currentValue2; - if ((workInProgress.flags & DidCapture) !== NoFlags$1) { - // Something suspended. Re-render with the fallback children. - workInProgress.lanes = renderLanes; // Do not reset the effect list. + if (lastFullyObservedContext === context); + else { + var contextItem = { + context: context, + memoizedValue: value, + next: null + }; - if ((workInProgress.mode & ProfileMode) !== NoMode) { - transferActualDuration(workInProgress); - } // Don't bubble properties in this case. + if (lastContextDependency === null) { + if (consumer === null) { + throw new Error( + "Context can only be read while React is rendering. " + + "In classes, you can read it in the render method or getDerivedStateFromProps. " + + "In function components, you can read it directly in the function body, but not " + + "inside Hooks like useReducer() or useMemo()." + ); + } // This is the first dependency for this component. Create a new list. - return workInProgress; - } + lastContextDependency = contextItem; + consumer.dependencies = { + lanes: NoLanes, + firstContext: contextItem + }; + } else { + // Append a new context item. + lastContextDependency = lastContextDependency.next = contextItem; + } + } - var nextDidTimeout = nextState !== null; - var prevDidTimeout = current !== null && current.memoizedState !== null; - // a passive effect, which is when we process the transitions + return value; +} - if (nextDidTimeout !== prevDidTimeout) { - // an effect to toggle the subtree's visibility. When we switch from - // fallback -> primary, the inner Offscreen fiber schedules this effect - // as part of its normal complete phase. But when we switch from - // primary -> fallback, the inner Offscreen fiber does not have a complete - // phase. So we need to schedule its effect here. - // - // We also use this flag to connect/disconnect the effects, but the same - // logic applies: when re-connecting, the Offscreen fiber's complete - // phase will handle scheduling the effect. It's only when the fallback - // is active that we have to do anything special. +var ReactCurrentBatchConfig$1 = ReactSharedInternals.ReactCurrentBatchConfig; +var NoTransition = null; +function requestCurrentTransition() { + return ReactCurrentBatchConfig$1.transition; +} // When retrying a Suspense/Offscreen boundary, we restore the cache that was +function getSuspendedCache() { + { + return null; + } // This function is called when a Suspense boundary suspends. It returns the +} - if (nextDidTimeout) { - var _offscreenFiber2 = workInProgress.child; - _offscreenFiber2.flags |= Visibility; - } - } +function markUpdate(workInProgress) { + // Tag the fiber with an update effect. This turns a Placement into + // a PlacementAndUpdate. + workInProgress.flags |= Update; +} - var retryQueue = workInProgress.updateQueue; - scheduleRetryEffect(workInProgress, retryQueue); +function markRef(workInProgress) { + workInProgress.flags |= Ref | RefStatic; +} - bubbleProperties(workInProgress); +function hadNoMutationsEffects(current, completedWork) { + var didBailout = current !== null && current.child === completedWork.child; - { - if ((workInProgress.mode & ProfileMode) !== NoMode) { - if (nextDidTimeout) { - // Don't count time spent in a timed out Suspense subtree as part of the base duration. - var primaryChildFragment = workInProgress.child; + if (didBailout) { + return true; + } - if (primaryChildFragment !== null) { - // $FlowFixMe Flow doesn't support type casting in combination with the -= operator - workInProgress.treeBaseDuration -= - primaryChildFragment.treeBaseDuration; - } - } - } - } + if ((completedWork.flags & ChildDeletion) !== NoFlags$1) { + return false; + } // TODO: If we move the `hadNoMutationsEffects` call after `bubbleProperties` + // then we only have to check the `completedWork.subtreeFlags`. - return null; + var child = completedWork.child; + + while (child !== null) { + if ( + (child.flags & MutationMask) !== NoFlags$1 || + (child.subtreeFlags & MutationMask) !== NoFlags$1 + ) { + return false; } - case HostPortal: - popHostContainer(workInProgress); - updateHostContainer(current, workInProgress); + child = child.sibling; + } - bubbleProperties(workInProgress); - return null; + return true; +} - case ContextProvider: - // Pop provider fiber - var context = workInProgress.type._context; - popProvider(context, workInProgress); - bubbleProperties(workInProgress); - return null; +function appendAllChildren( + parent, + workInProgress, + needsVisibilityToggle, + isHidden +) { + { + // We only have the top Fiber that was created but we need recurse down its + // children to find all the terminal nodes. + var _node = workInProgress.child; - case IncompleteClassComponent: { - // Same as class component case. I put it down here so that the tags are - // sequential to ensure this switch is compiled to a jump table. - var _Component = workInProgress.type; + while (_node !== null) { + // eslint-disable-next-line no-labels + if (_node.tag === HostComponent) { + var instance = _node.stateNode; - if (isContextProvider(_Component)) { - popContext(workInProgress); - } + if (needsVisibilityToggle && isHidden) { + instance = cloneHiddenInstance(instance); + } - bubbleProperties(workInProgress); - return null; - } + appendInitialChild(parent, instance); + } else if (_node.tag === HostText) { + var _instance = _node.stateNode; + + if (needsVisibilityToggle && isHidden) { + _instance = cloneHiddenTextInstance(); + } + + appendInitialChild(parent, _instance); + } else if (_node.tag === HostPortal); + else if ( + _node.tag === OffscreenComponent && + _node.memoizedState !== null + ) { + // The children in this boundary are hidden. Toggle their visibility + // before appending. + var child = _node.child; - case SuspenseListComponent: { - popSuspenseListContext(workInProgress); - var renderState = workInProgress.memoizedState; + if (child !== null) { + child.return = _node; + } - if (renderState === null) { - // We're running in the default, "independent" mode. - // We don't do anything in this mode. - bubbleProperties(workInProgress); - return null; + appendAllChildren(parent, _node, true, true); + } else if (_node.child !== null) { + _node.child.return = _node; + _node = _node.child; + continue; } - var didSuspendAlready = (workInProgress.flags & DidCapture) !== NoFlags$1; - var renderedTail = renderState.rendering; + _node = _node; - if (renderedTail === null) { - // We just rendered the head. - if (!didSuspendAlready) { - // This is the first pass. We need to figure out if anything is still - // suspended in the rendered set. - // If new content unsuspended, but there's still some content that - // didn't. Then we need to do a second pass that forces everything - // to keep showing their fallbacks. - // We might be suspended if something in this render pass suspended, or - // something in the previous committed pass suspended. Otherwise, - // there's no chance so we can skip the expensive call to - // findFirstSuspended. - var cannotBeSuspended = - renderHasNotSuspendedYet() && - (current === null || (current.flags & DidCapture) === NoFlags$1); + if (_node === workInProgress) { + return; + } // $FlowFixMe[incompatible-use] found when upgrading Flow - if (!cannotBeSuspended) { - var row = workInProgress.child; + while (_node.sibling === null) { + // $FlowFixMe[incompatible-use] found when upgrading Flow + if (_node.return === null || _node.return === workInProgress) { + return; + } - while (row !== null) { - var suspended = findFirstSuspended(row); + _node = _node.return; + } // $FlowFixMe[incompatible-use] found when upgrading Flow - if (suspended !== null) { - didSuspendAlready = true; - workInProgress.flags |= DidCapture; - cutOffTailIfNeeded(renderState, false); // If this is a newly suspended tree, it might not get committed as - // part of the second pass. In that case nothing will subscribe to - // its thenables. Instead, we'll transfer its thenables to the - // SuspenseList so that it can retry if they resolve. - // There might be multiple of these in the list but since we're - // going to wait for all of them anyway, it doesn't really matter - // which ones gets to ping. In theory we could get clever and keep - // track of how many dependencies remain but it gets tricky because - // in the meantime, we can add/remove/change items and dependencies. - // We might bail out of the loop before finding any but that - // doesn't matter since that means that the other boundaries that - // we did find already has their listeners attached. + _node.sibling.return = _node.return; + _node = _node.sibling; + } + } +} // An unfortunate fork of appendAllChildren because we have two different parent types. - var _retryQueue = suspended.updateQueue; - workInProgress.updateQueue = _retryQueue; - scheduleRetryEffect(workInProgress, _retryQueue); // Rerender the whole list, but this time, we'll force fallbacks - // to stay in place. - // Reset the effect flags before doing the second pass since that's now invalid. - // Reset the child fibers to their original state. +function appendAllChildrenToContainer( + containerChildSet, + workInProgress, + needsVisibilityToggle, + isHidden +) { + { + // We only have the top Fiber that was created but we need recurse down its + // children to find all the terminal nodes. + var node = workInProgress.child; - workInProgress.subtreeFlags = NoFlags$1; - resetChildFibers(workInProgress, renderLanes); // Set up the Suspense List Context to force suspense and - // immediately rerender the children. + while (node !== null) { + // eslint-disable-next-line no-labels + if (node.tag === HostComponent) { + var instance = node.stateNode; - pushSuspenseListContext( - workInProgress, - setShallowSuspenseListContext( - suspenseStackCursor.current, - ForceSuspenseFallback - ) - ); // Don't bubble properties in this case. + if (needsVisibilityToggle && isHidden) { + instance = cloneHiddenInstance(instance); + } - return workInProgress.child; - } + appendChildToContainerChildSet(containerChildSet, instance); + } else if (node.tag === HostText) { + var _instance2 = node.stateNode; - row = row.sibling; - } - } + if (needsVisibilityToggle && isHidden) { + _instance2 = cloneHiddenTextInstance(); + } - if (renderState.tail !== null && now$1() > getRenderTargetTime()) { - // We have already passed our CPU deadline but we still have rows - // left in the tail. We'll just give up further attempts to render - // the main content and only render fallbacks. - workInProgress.flags |= DidCapture; - didSuspendAlready = true; - cutOffTailIfNeeded(renderState, false); // Since nothing actually suspended, there will nothing to ping this - // to get it started back up to attempt the next item. While in terms - // of priority this work has the same priority as this current render, - // it's not part of the same transition once the transition has - // committed. If it's sync, we still want to yield so that it can be - // painted. Conceptually, this is really the same as pinging. - // We can use any RetryLane even if it's the one currently rendering - // since we're leaving it behind on this node. + appendChildToContainerChildSet(containerChildSet, _instance2); + } else if (node.tag === HostPortal); + else if (node.tag === OffscreenComponent && node.memoizedState !== null) { + // The children in this boundary are hidden. Toggle their visibility + // before appending. + var child = node.child; - workInProgress.lanes = SomeRetryLane; - } - } else { - cutOffTailIfNeeded(renderState, false); - } // Next we're going to render the tail. - } else { - // Append the rendered row to the child list. - if (!didSuspendAlready) { - var _suspended = findFirstSuspended(renderedTail); + if (child !== null) { + child.return = node; + } // If Offscreen is not in manual mode, detached tree is hidden from user space. - if (_suspended !== null) { - workInProgress.flags |= DidCapture; - didSuspendAlready = true; // Ensure we transfer the update queue to the parent so that it doesn't - // get lost if this row ends up dropped during a second pass. + var _needsVisibilityToggle = !isOffscreenManual(node); - var _retryQueue2 = _suspended.updateQueue; - workInProgress.updateQueue = _retryQueue2; - scheduleRetryEffect(workInProgress, _retryQueue2); - cutOffTailIfNeeded(renderState, true); // This might have been modified. + appendAllChildrenToContainer( + containerChildSet, + node, + _needsVisibilityToggle, + true + ); + } else if (node.child !== null) { + node.child.return = node; + node = node.child; + continue; + } - if ( - renderState.tail === null && - renderState.tailMode === "hidden" && - !renderedTail.alternate && - !getIsHydrating() // We don't cut it if we're hydrating. - ) { - // We're done. - bubbleProperties(workInProgress); - return null; - } - } else if ( - // The time it took to render last row is greater than the remaining - // time we have to render. So rendering one more row would likely - // exceed it. - now$1() * 2 - renderState.renderingStartTime > - getRenderTargetTime() && - renderLanes !== OffscreenLane - ) { - // We have now passed our CPU deadline and we'll just give up further - // attempts to render the main content and only render fallbacks. - // The assumption is that this is usually faster. - workInProgress.flags |= DidCapture; - didSuspendAlready = true; - cutOffTailIfNeeded(renderState, false); // Since nothing actually suspended, there will nothing to ping this - // to get it started back up to attempt the next item. While in terms - // of priority this work has the same priority as this current render, - // it's not part of the same transition once the transition has - // committed. If it's sync, we still want to yield so that it can be - // painted. Conceptually, this is really the same as pinging. - // We can use any RetryLane even if it's the one currently rendering - // since we're leaving it behind on this node. + node = node; - workInProgress.lanes = SomeRetryLane; - } + if (node === workInProgress) { + return; + } // $FlowFixMe[incompatible-use] found when upgrading Flow + + while (node.sibling === null) { + // $FlowFixMe[incompatible-use] found when upgrading Flow + if (node.return === null || node.return === workInProgress) { + return; } - if (renderState.isBackwards) { - // The effect list of the backwards tail will have been added - // to the end. This breaks the guarantee that life-cycles fire in - // sibling order but that isn't a strong guarantee promised by React. - // Especially since these might also just pop in during future commits. - // Append to the beginning of the list. - renderedTail.sibling = workInProgress.child; - workInProgress.child = renderedTail; - } else { - var previousSibling = renderState.last; + node = node.return; + } // $FlowFixMe[incompatible-use] found when upgrading Flow - if (previousSibling !== null) { - previousSibling.sibling = renderedTail; - } else { - workInProgress.child = renderedTail; - } + node.sibling.return = node.return; + node = node.sibling; + } + } +} - renderState.last = renderedTail; - } - } +function updateHostContainer(current, workInProgress) { + { + var portalOrRoot = workInProgress.stateNode; + var childrenUnchanged = hadNoMutationsEffects(current, workInProgress); - if (renderState.tail !== null) { - // We still have tail rows to render. - // Pop a row. - var next = renderState.tail; - renderState.rendering = next; - renderState.tail = next.sibling; - renderState.renderingStartTime = now$1(); - next.sibling = null; // Restore the context. - // TODO: We can probably just avoid popping it instead and only - // setting it the first time we go from not suspended to suspended. + if (childrenUnchanged); + else { + var container = portalOrRoot.containerInfo; + var newChildSet = createContainerChildSet(container); // If children might have changed, we have to add them all to the set. - var suspenseContext = suspenseStackCursor.current; + appendAllChildrenToContainer(newChildSet, workInProgress, false, false); + portalOrRoot.pendingChildren = newChildSet; // Schedule an update on the container to swap out the container. - if (didSuspendAlready) { - suspenseContext = setShallowSuspenseListContext( - suspenseContext, - ForceSuspenseFallback - ); - } else { - suspenseContext = - setDefaultShallowSuspenseListContext(suspenseContext); - } + markUpdate(workInProgress); + finalizeContainerChildren(container, newChildSet); + } + } +} - pushSuspenseListContext(workInProgress, suspenseContext); // Do a pass over the next row. - // Don't bubble properties in this case. +function updateHostComponent( + current, + workInProgress, + type, + newProps, + renderLanes +) { + { + var currentInstance = current.stateNode; + var _oldProps = current.memoizedProps; // If there are no effects associated with this node, then none of our children had any updates. + // This guarantees that we can reuse all of them. - return next; - } + var childrenUnchanged = hadNoMutationsEffects(current, workInProgress); - bubbleProperties(workInProgress); - return null; + if (childrenUnchanged && _oldProps === newProps) { + // No changes, just reuse the existing instance. + // Note that this might release a previous clone. + workInProgress.stateNode = currentInstance; + return; } - case ScopeComponent: { - break; - } + var recyclableInstance = workInProgress.stateNode; - case OffscreenComponent: - case LegacyHiddenComponent: { - popSuspenseHandler(workInProgress); - popHiddenContext(workInProgress); - var _nextState = workInProgress.memoizedState; - var nextIsHidden = _nextState !== null; // Schedule a Visibility effect if the visibility has changed + getHostContext(); - if (workInProgress.tag === LegacyHiddenComponent); - else { - if (current !== null) { - var _prevState = current.memoizedState; - var prevIsHidden = _prevState !== null; + var _updatePayload = null; - if (prevIsHidden !== nextIsHidden) { - workInProgress.flags |= Visibility; - } - } else { - // On initial mount, we only need a Visibility effect if the tree - // is hidden. - if (nextIsHidden) { - workInProgress.flags |= Visibility; - } - } - } + if (_oldProps !== newProps) { + _updatePayload = prepareUpdate( + recyclableInstance, + type, + _oldProps, + newProps + ); + } - if (!nextIsHidden || (workInProgress.mode & ConcurrentMode) === NoMode) { - bubbleProperties(workInProgress); - } else { - // Don't bubble properties for hidden children unless we're rendering - // at offscreen priority. - if ( - includesSomeLane(renderLanes, OffscreenLane) && // Also don't bubble if the tree suspended - (workInProgress.flags & DidCapture) === NoLanes - ) { - bubbleProperties(workInProgress); // Check if there was an insertion or update in the hidden subtree. - // If so, we need to hide those nodes in the commit phase, so - // schedule a visibility effect. + if (childrenUnchanged && _updatePayload === null) { + // No changes, just reuse the existing instance. + // Note that this might release a previous clone. + workInProgress.stateNode = currentInstance; + return; + } - if ( - workInProgress.tag !== LegacyHiddenComponent && - workInProgress.subtreeFlags & (Placement | Update) - ) { - workInProgress.flags |= Visibility; - } - } - } + var newInstance = cloneInstance( + currentInstance, + _updatePayload, + type, + _oldProps, + newProps, + workInProgress, + childrenUnchanged + ); - var offscreenQueue = workInProgress.updateQueue; + workInProgress.stateNode = newInstance; - if (offscreenQueue !== null) { - var _retryQueue3 = offscreenQueue.retryQueue; - scheduleRetryEffect(workInProgress, _retryQueue3); - } - return null; + if (childrenUnchanged) { + // If there are no other effects in this tree, we need to flag this node as having one. + // Even though we're not going to use it for anything. + // Otherwise parents won't know that there are new children to propagate upwards. + markUpdate(workInProgress); + } else { + // If children might have changed, we have to add them all to the set. + appendAllChildren(newInstance, workInProgress, false, false); } + } +} // TODO: This should ideally move to begin phase, but currently the instance is +// not created until the complete phase. For our existing use cases, host nodes +// that suspend don't have children, so it doesn't matter. But that might not +// always be true in the future. - case CacheComponent: { - return null; - } +function preloadInstanceAndSuspendIfNeeded( + workInProgress, + type, + props, + renderLanes +) { + // Ask the renderer if this instance should suspend the commit. + { + // If this flag was set previously, we can remove it. The flag represents + // whether this particular set of props might ever need to suspend. The + // safest thing to do is for maySuspendCommit to always return true, but + // if the renderer is reasonably confident that the underlying resource + // won't be evicted, it can return false as a performance optimization. + workInProgress.flags &= ~SuspenseyCommit; + return; + } // Mark this fiber with a flag. We use this right before the commit phase to +} - case TracingMarkerComponent: { - return null; +function scheduleRetryEffect(workInProgress, retryQueue) { + var wakeables = retryQueue; + + if (wakeables !== null) { + // Schedule an effect to attach a retry listener to the promise. + // TODO: Move to passive phase + workInProgress.flags |= Update; + } else { + // This boundary suspended, but no wakeables were added to the retry + // queue. Check if the renderer suspended commit. If so, this means + // that once the fallback is committed, we can immediately retry + // rendering again, because rendering wasn't actually blocked. Only + // the commit phase. + // TODO: Consider a model where we always schedule an immediate retry, even + // for normal Suspense. That way the retry can partially render up to the + // first thing that suspends. + if (workInProgress.flags & ScheduleRetry) { + var retryLane = // TODO: This check should probably be moved into claimNextRetryLane + // I also suspect that we need some further consolidation of offscreen + // and retry lanes. + workInProgress.tag !== OffscreenComponent + ? claimNextRetryLane() + : OffscreenLane; + workInProgress.lanes = mergeLanes(workInProgress.lanes, retryLane); } } +} - throw new Error( - "Unknown unit of work tag (" + - workInProgress.tag + - "). This error is likely caused by a bug in " + - "React. Please file an issue." - ); +function updateHostText(current, workInProgress, oldText, newText) { + { + if (oldText !== newText) { + // If the text content differs, we'll create a new text instance for it. + var rootContainerInstance = getRootHostContainer(); + var currentHostContext = getHostContext(); + workInProgress.stateNode = createTextInstance( + newText, + rootContainerInstance, + currentHostContext, + workInProgress + ); // We'll have to mark it as having an effect, even though we won't use the effect for anything. + // This lets the parents know that at least one of their children has changed. + + markUpdate(workInProgress); + } else { + workInProgress.stateNode = current.stateNode; + } + } } -function unwindWork(current, workInProgress, renderLanes) { - switch (workInProgress.tag) { - case ClassComponent: { - var Component = workInProgress.type; +function cutOffTailIfNeeded(renderState, hasRenderedATailFallback) { + switch (renderState.tailMode) { + case "hidden": { + // Any insertions at the end of the tail list after this point + // should be invisible. If there are already mounted boundaries + // anything before them are not considered for collapsing. + // Therefore we need to go through the whole tail to find if + // there are any. + var tailNode = renderState.tail; + var lastTailNode = null; - if (isContextProvider(Component)) { - popContext(workInProgress); + while (tailNode !== null) { + if (tailNode.alternate !== null) { + lastTailNode = tailNode; + } + + tailNode = tailNode.sibling; + } // Next we're simply going to delete all insertions after the + // last rendered item. + + if (lastTailNode === null) { + // All remaining items in the tail are insertions. + renderState.tail = null; + } else { + // Detach the insertion after the last node that was already + // inserted. + lastTailNode.sibling = null; } - var flags = workInProgress.flags; + break; + } - if (flags & ShouldCapture) { - workInProgress.flags = (flags & ~ShouldCapture) | DidCapture; + case "collapsed": { + // Any insertions at the end of the tail list after this point + // should be invisible. If there are already mounted boundaries + // anything before them are not considered for collapsing. + // Therefore we need to go through the whole tail to find if + // there are any. + var _tailNode = renderState.tail; + var _lastTailNode = null; + + while (_tailNode !== null) { + if (_tailNode.alternate !== null) { + _lastTailNode = _tailNode; + } + + _tailNode = _tailNode.sibling; + } // Next we're simply going to delete all insertions after the + // last rendered item. - if ((workInProgress.mode & ProfileMode) !== NoMode) { - transferActualDuration(workInProgress); + if (_lastTailNode === null) { + // All remaining items in the tail are insertions. + if (!hasRenderedATailFallback && renderState.tail !== null) { + // We suspended during the head. We want to show at least one + // row at the tail. So we'll keep on and cut off the rest. + renderState.tail.sibling = null; + } else { + renderState.tail = null; } - - return workInProgress; + } else { + // Detach the insertion after the last node that was already + // inserted. + _lastTailNode.sibling = null; } - return null; + break; } + } +} - case HostRoot: { - popHostContainer(workInProgress); - popTopLevelContextObject(workInProgress); - resetWorkInProgressVersions(); - var _flags = workInProgress.flags; - - if ( - (_flags & ShouldCapture) !== NoFlags$1 && - (_flags & DidCapture) === NoFlags$1 - ) { - // There was an error during render that wasn't captured by a suspense - // boundary. Do a second pass on the root to unmount the children. - workInProgress.flags = (_flags & ~ShouldCapture) | DidCapture; - return workInProgress; - } // We unwound to the root without completing it. Exit. +function bubbleProperties(completedWork) { + var didBailout = + completedWork.alternate !== null && + completedWork.alternate.child === completedWork.child; + var newChildLanes = NoLanes; + var subtreeFlags = NoFlags$1; - return null; - } + if (!didBailout) { + // Bubble up the earliest expiration time. + if ((completedWork.mode & ProfileMode) !== NoMode) { + // In profiling mode, resetChildExpirationTime is also used to reset + // profiler durations. + var actualDuration = completedWork.actualDuration; + var treeBaseDuration = completedWork.selfBaseDuration; + var child = completedWork.child; - case HostHoistable: - case HostSingleton: - case HostComponent: { - // TODO: popHydrationState - popHostContext(workInProgress); - return null; - } + while (child !== null) { + newChildLanes = mergeLanes( + newChildLanes, + mergeLanes(child.lanes, child.childLanes) + ); + subtreeFlags |= child.subtreeFlags; + subtreeFlags |= child.flags; // When a fiber is cloned, its actualDuration is reset to 0. This value will + // only be updated if work is done on the fiber (i.e. it doesn't bailout). + // When work is done, it should bubble to the parent's actualDuration. If + // the fiber has not been cloned though, (meaning no work was done), then + // this value will reflect the amount of time spent working on a previous + // render. In that case it should not bubble. We determine whether it was + // cloned by comparing the child pointer. + // $FlowFixMe[unsafe-addition] addition with possible null/undefined value - case SuspenseComponent: { - popSuspenseHandler(workInProgress); - var suspenseState = workInProgress.memoizedState; + actualDuration += child.actualDuration; // $FlowFixMe[unsafe-addition] addition with possible null/undefined value - if (suspenseState !== null && suspenseState.dehydrated !== null) { - if (workInProgress.alternate === null) { - throw new Error( - "Threw in newly mounted dehydrated component. This is likely a bug in " + - "React. Please file an issue." - ); - } + treeBaseDuration += child.treeBaseDuration; + child = child.sibling; } - var _flags2 = workInProgress.flags; - - if (_flags2 & ShouldCapture) { - workInProgress.flags = (_flags2 & ~ShouldCapture) | DidCapture; // Captured a suspense effect. Re-render the boundary. + completedWork.actualDuration = actualDuration; + completedWork.treeBaseDuration = treeBaseDuration; + } else { + var _child = completedWork.child; - if ((workInProgress.mode & ProfileMode) !== NoMode) { - transferActualDuration(workInProgress); - } + while (_child !== null) { + newChildLanes = mergeLanes( + newChildLanes, + mergeLanes(_child.lanes, _child.childLanes) + ); + subtreeFlags |= _child.subtreeFlags; + subtreeFlags |= _child.flags; // Update the return pointer so the tree is consistent. This is a code + // smell because it assumes the commit phase is never concurrent with + // the render phase. Will address during refactor to alternate model. - return workInProgress; + _child.return = completedWork; + _child = _child.sibling; } - - return null; } - case SuspenseListComponent: { - popSuspenseListContext(workInProgress); // SuspenseList doesn't actually catch anything. It should've been - // caught by a nested boundary. If not, it should bubble through. + completedWork.subtreeFlags |= subtreeFlags; + } else { + // Bubble up the earliest expiration time. + if ((completedWork.mode & ProfileMode) !== NoMode) { + // In profiling mode, resetChildExpirationTime is also used to reset + // profiler durations. + var _treeBaseDuration = completedWork.selfBaseDuration; + var _child2 = completedWork.child; - return null; - } + while (_child2 !== null) { + newChildLanes = mergeLanes( + newChildLanes, + mergeLanes(_child2.lanes, _child2.childLanes) + ); // "Static" flags share the lifetime of the fiber/hook they belong to, + // so we should bubble those up even during a bailout. All the other + // flags have a lifetime only of a single render + commit, so we should + // ignore them. - case HostPortal: - popHostContainer(workInProgress); - return null; + subtreeFlags |= _child2.subtreeFlags & StaticMask; + subtreeFlags |= _child2.flags & StaticMask; // $FlowFixMe[unsafe-addition] addition with possible null/undefined value - case ContextProvider: - var context = workInProgress.type._context; - popProvider(context, workInProgress); - return null; + _treeBaseDuration += _child2.treeBaseDuration; + _child2 = _child2.sibling; + } - case OffscreenComponent: - case LegacyHiddenComponent: { - popSuspenseHandler(workInProgress); - popHiddenContext(workInProgress); - var _flags3 = workInProgress.flags; + completedWork.treeBaseDuration = _treeBaseDuration; + } else { + var _child3 = completedWork.child; - if (_flags3 & ShouldCapture) { - workInProgress.flags = (_flags3 & ~ShouldCapture) | DidCapture; // Captured a suspense effect. Re-render the boundary. + while (_child3 !== null) { + newChildLanes = mergeLanes( + newChildLanes, + mergeLanes(_child3.lanes, _child3.childLanes) + ); // "Static" flags share the lifetime of the fiber/hook they belong to, + // so we should bubble those up even during a bailout. All the other + // flags have a lifetime only of a single render + commit, so we should + // ignore them. - if ((workInProgress.mode & ProfileMode) !== NoMode) { - transferActualDuration(workInProgress); - } + subtreeFlags |= _child3.subtreeFlags & StaticMask; + subtreeFlags |= _child3.flags & StaticMask; // Update the return pointer so the tree is consistent. This is a code + // smell because it assumes the commit phase is never concurrent with + // the render phase. Will address during refactor to alternate model. - return workInProgress; + _child3.return = completedWork; + _child3 = _child3.sibling; } - - return null; } - case CacheComponent: - return null; - - case TracingMarkerComponent: - return null; - - default: - return null; + completedWork.subtreeFlags |= subtreeFlags; } + + completedWork.childLanes = newChildLanes; + return didBailout; } -function unwindInterruptedWork(current, interruptedWork, renderLanes) { - switch (interruptedWork.tag) { - case ClassComponent: { - var childContextTypes = interruptedWork.type.childContextTypes; +function completeDehydratedSuspenseBoundary( + current, + workInProgress, + nextState +) { + var wasHydrated = popHydrationState(); - if (childContextTypes !== null && childContextTypes !== undefined) { - popContext(interruptedWork); + if (nextState !== null && nextState.dehydrated !== null) { + // We might be inside a hydration state the first time we're picking up this + // Suspense boundary, and also after we've reentered it for further hydration. + if (current === null) { + if (!wasHydrated) { + throw new Error( + "A dehydrated suspense component was completed without a hydrated node. " + + "This is probably a bug in React." + ); } - break; - } + prepareToHydrateHostSuspenseInstance(); + bubbleProperties(workInProgress); - case HostRoot: { - popHostContainer(interruptedWork); - popTopLevelContextObject(interruptedWork); - resetWorkInProgressVersions(); - break; - } + { + if ((workInProgress.mode & ProfileMode) !== NoMode) { + var isTimedOutSuspense = nextState !== null; - case HostHoistable: - case HostSingleton: - case HostComponent: { - popHostContext(interruptedWork); - break; - } + if (isTimedOutSuspense) { + // Don't count time spent in a timed out Suspense subtree as part of the base duration. + var primaryChildFragment = workInProgress.child; - case HostPortal: - popHostContainer(interruptedWork); - break; + if (primaryChildFragment !== null) { + // $FlowFixMe Flow doesn't support type casting in combination with the -= operator + workInProgress.treeBaseDuration -= + primaryChildFragment.treeBaseDuration; + } + } + } + } + + return false; + } else { + if ((workInProgress.flags & DidCapture) === NoFlags$1) { + // This boundary did not suspend so it's now hydrated and unsuspended. + workInProgress.memoizedState = null; + } // If nothing suspended, we need to schedule an effect to mark this boundary + // as having hydrated so events know that they're free to be invoked. + // It's also a signal to replay events and the suspense callback. + // If something suspended, schedule an effect to attach retry listeners. + // So we might as well always mark this. + + workInProgress.flags |= Update; + bubbleProperties(workInProgress); + + { + if ((workInProgress.mode & ProfileMode) !== NoMode) { + var _isTimedOutSuspense = nextState !== null; - case SuspenseComponent: - popSuspenseHandler(interruptedWork); - break; + if (_isTimedOutSuspense) { + // Don't count time spent in a timed out Suspense subtree as part of the base duration. + var _primaryChildFragment = workInProgress.child; - case SuspenseListComponent: - popSuspenseListContext(interruptedWork); - break; + if (_primaryChildFragment !== null) { + // $FlowFixMe Flow doesn't support type casting in combination with the -= operator + workInProgress.treeBaseDuration -= + _primaryChildFragment.treeBaseDuration; + } + } + } + } - case ContextProvider: - var context = interruptedWork.type._context; - popProvider(context, interruptedWork); - break; + return false; + } + } else { + // Successfully completed this tree. If this was a forced client render, + // there may have been recoverable errors during first hydration + // attempt. If so, add them to a queue so we can log them in the + // commit phase. + upgradeHydrationErrorsToRecoverable(); // Fall through to normal Suspense path - case OffscreenComponent: - case LegacyHiddenComponent: - popSuspenseHandler(interruptedWork); - popHiddenContext(interruptedWork); - break; + return true; } } -var didWarnAboutUndefinedSnapshotBeforeUpdate = null; - -{ - didWarnAboutUndefinedSnapshotBeforeUpdate = new Set(); -} // Used during the commit phase to track the state of the Offscreen component stack. -// Allows us to avoid traversing the return path to find the nearest Offscreen ancestor. - -var offscreenSubtreeIsHidden = false; -var offscreenSubtreeWasHidden = false; -var PossiblyWeakSet = typeof WeakSet === "function" ? WeakSet : Set; -var nextEffect = null; // Used for Profiling builds to track updaters. - -var inProgressLanes = null; -var inProgressRoot = null; +function completeWork(current, workInProgress, renderLanes) { + var newProps = workInProgress.pendingProps; // Note: This intentionally doesn't check if we're hydrating because comparing -function shouldProfile(current) { - return ( - (current.mode & ProfileMode) !== NoMode && - (getExecutionContext() & CommitContext) !== NoContext - ); -} + switch (workInProgress.tag) { + case IndeterminateComponent: + case LazyComponent: + case SimpleMemoComponent: + case FunctionComponent: + case ForwardRef: + case Fragment: + case Mode: + case Profiler: + case ContextConsumer: + case MemoComponent: + bubbleProperties(workInProgress); + return null; -function reportUncaughtErrorInDEV(error) { - // Wrapping each small part of the commit phase into a guarded - // callback is a bit too slow (https://github.com/facebook/react/pull/21666). - // But we rely on it to surface errors to DEV tools like overlays - // (https://github.com/facebook/react/issues/21712). - // As a compromise, rethrow only caught errors in a guard. - { - invokeGuardedCallback(null, function () { - throw error; - }); - clearCaughtError(); - } -} + case ClassComponent: { + var Component = workInProgress.type; -function callComponentWillUnmountWithTimer(current, instance) { - instance.props = current.memoizedProps; - instance.state = current.memoizedState; + if (isContextProvider(Component)) { + popContext(workInProgress); + } - if (shouldProfile(current)) { - try { - startLayoutEffectTimer(); - instance.componentWillUnmount(); - } finally { - recordLayoutEffectDuration(current); + bubbleProperties(workInProgress); + return null; } - } else { - instance.componentWillUnmount(); - } -} // Capture errors so they don't interrupt unmounting. -function safelyCallComponentWillUnmount( - current, - nearestMountedAncestor, - instance -) { - try { - callComponentWillUnmountWithTimer(current, instance); - } catch (error) { - captureCommitPhaseError(current, nearestMountedAncestor, error); - } -} // Capture errors so they don't interrupt mounting. + case HostRoot: { + var fiberRoot = workInProgress.stateNode; + popHostContainer(workInProgress); + popTopLevelContextObject(workInProgress); + resetWorkInProgressVersions(); -function safelyAttachRef(current, nearestMountedAncestor) { - try { - commitAttachRef(current); - } catch (error) { - captureCommitPhaseError(current, nearestMountedAncestor, error); - } -} + if (fiberRoot.pendingContext) { + fiberRoot.context = fiberRoot.pendingContext; + fiberRoot.pendingContext = null; + } -function safelyDetachRef(current, nearestMountedAncestor) { - var ref = current.ref; - var refCleanup = current.refCleanup; + if (current === null || current.child === null) { + // If we hydrated, pop so that we can delete any remaining children + // that weren't hydrated. + var wasHydrated = popHydrationState(); - if (ref !== null) { - if (typeof refCleanup === "function") { - try { - if (shouldProfile(current)) { - try { - startLayoutEffectTimer(); - refCleanup(); - } finally { - recordLayoutEffectDuration(current); - } + if (wasHydrated) { + // If we hydrated, then we'll need to schedule an update for + // the commit side-effects on the root. + markUpdate(workInProgress); } else { - refCleanup(); - } - } catch (error) { - captureCommitPhaseError(current, nearestMountedAncestor, error); - } finally { - // `refCleanup` has been called. Nullify all references to it to prevent double invocation. - current.refCleanup = null; - var finishedWork = current.alternate; + if (current !== null) { + var prevState = current.memoizedState; - if (finishedWork != null) { - finishedWork.refCleanup = null; - } - } - } else if (typeof ref === "function") { - var retVal; + if ( + // Check if this is a client root + !prevState.isDehydrated || // Check if we reverted to client rendering (e.g. due to an error) + (workInProgress.flags & ForceClientRender) !== NoFlags$1 + ) { + // Schedule an effect to clear this container at the start of the + // next commit. This handles the case of React rendering into a + // container with previous children. It's also safe to do for + // updates too, because current.child would only be null if the + // previous render was null (so the container would already + // be empty). + workInProgress.flags |= Snapshot; // If this was a forced client render, there may have been + // recoverable errors during first hydration attempt. If so, add + // them to a queue so we can log them in the commit phase. - try { - if (shouldProfile(current)) { - try { - startLayoutEffectTimer(); - retVal = ref(null); - } finally { - recordLayoutEffectDuration(current); + upgradeHydrationErrorsToRecoverable(); + } } - } else { - retVal = ref(null); } - } catch (error) { - captureCommitPhaseError(current, nearestMountedAncestor, error); } - { - if (typeof retVal === "function") { - error( - "Unexpected return value from a callback ref in %s. " + - "A callback ref should not return a function.", - getComponentNameFromFiber(current) - ); - } - } - } else { - // $FlowFixMe unable to narrow type to RefObject - ref.current = null; + updateHostContainer(current, workInProgress); + bubbleProperties(workInProgress); + + return null; } - } -} -function safelyCallDestroy(current, nearestMountedAncestor, destroy) { - try { - destroy(); - } catch (error) { - captureCommitPhaseError(current, nearestMountedAncestor, error); - } -} -var shouldFireAfterActiveInstanceBlur = false; -function commitBeforeMutationEffects(root, firstChild) { - nextEffect = firstChild; - commitBeforeMutationEffects_begin(); // We no longer need to track the active instance fiber + case HostHoistable: + // eslint-disable-next-line-no-fallthrough - var shouldFire = shouldFireAfterActiveInstanceBlur; - shouldFireAfterActiveInstanceBlur = false; - return shouldFire; -} + case HostSingleton: + // eslint-disable-next-line-no-fallthrough -function commitBeforeMutationEffects_begin() { - while (nextEffect !== null) { - var fiber = nextEffect; // This phase is only used for beforeActiveInstanceBlur. + case HostComponent: { + popHostContext(workInProgress); + var _type = workInProgress.type; - var child = fiber.child; + if (current !== null && workInProgress.stateNode != null) { + updateHostComponent(current, workInProgress, _type, newProps); - if ( - (fiber.subtreeFlags & BeforeMutationMask) !== NoFlags$1 && - child !== null - ) { - child.return = fiber; - nextEffect = child; - } else { - commitBeforeMutationEffects_complete(); - } - } -} + if (current.ref !== workInProgress.ref) { + markRef(workInProgress); + } + } else { + if (!newProps) { + if (workInProgress.stateNode === null) { + throw new Error( + "We must have new props for new mounts. This error is likely " + + "caused by a bug in React. Please file an issue." + ); + } // This can happen when we abort work. -function commitBeforeMutationEffects_complete() { - while (nextEffect !== null) { - var fiber = nextEffect; - setCurrentFiber(fiber); + bubbleProperties(workInProgress); + return null; + } - try { - commitBeforeMutationEffectsOnFiber(fiber); - } catch (error) { - captureCommitPhaseError(fiber, fiber.return, error); - } + var _currentHostContext2 = getHostContext(); // TODO: Move createInstance to beginWork and keep it on a context + // "stack" as the parent. Then append children as we go in beginWork + // or completeWork depending on whether we want to add them top->down or + // bottom->up. Top->down is faster in IE11. - resetCurrentFiber(); - var sibling = fiber.sibling; + var _wasHydrated2 = popHydrationState(); - if (sibling !== null) { - sibling.return = fiber.return; - nextEffect = sibling; - return; - } + if (_wasHydrated2) { + // TODO: Move this and createInstance step into the beginPhase + // to consolidate. + if (prepareToHydrateHostInstance()) { + // If changes to the hydrated node need to be applied at the + // commit-phase we mark this as such. + markUpdate(workInProgress); + } + } else { + var _rootContainerInstance = getRootHostContainer(); - nextEffect = fiber.return; - } -} + var _instance3 = createInstance( + _type, + newProps, + _rootContainerInstance, + _currentHostContext2, + workInProgress + ); -function commitBeforeMutationEffectsOnFiber(finishedWork) { - var current = finishedWork.alternate; - var flags = finishedWork.flags; + appendAllChildren(_instance3, workInProgress, false, false); + workInProgress.stateNode = _instance3; // Certain renderers require commit-time effects for initial mount. + } - if ((flags & Snapshot) !== NoFlags$1) { - setCurrentFiber(finishedWork); - } + if (workInProgress.ref !== null) { + // If there is a ref on a host node we need to schedule a callback + markRef(workInProgress); + } + } - switch (finishedWork.tag) { - case FunctionComponent: { - break; - } + bubbleProperties(workInProgress); // This must come at the very end of the complete phase, because it might + // throw to suspend, and if the resource immediately loads, the work loop + // will resume rendering as if the work-in-progress completed. So it must + // fully complete. - case ForwardRef: - case SimpleMemoComponent: { - break; + preloadInstanceAndSuspendIfNeeded(workInProgress); + return null; } - case ClassComponent: { - if ((flags & Snapshot) !== NoFlags$1) { - if (current !== null) { - var prevProps = current.memoizedProps; - var prevState = current.memoizedState; - var instance = finishedWork.stateNode; // We could update instance props and state here, - // but instead we rely on them being set during last render. - // TODO: revisit this when we implement resuming. + case HostText: { + var newText = newProps; - { - if ( - finishedWork.type === finishedWork.elementType && - !didWarnAboutReassigningProps - ) { - if (instance.props !== finishedWork.memoizedProps) { - error( - "Expected %s props to match memoized props before " + - "getSnapshotBeforeUpdate. " + - "This might either be because of a bug in React, or because " + - "a component reassigns its own `this.props`. " + - "Please file an issue.", - getComponentNameFromFiber(finishedWork) || "instance" - ); - } + if (current && workInProgress.stateNode != null) { + var oldText = current.memoizedProps; // If we have an alternate, that means this is an update and we need + // to schedule a side-effect to do the updates. - if (instance.state !== finishedWork.memoizedState) { - error( - "Expected %s state to match memoized state before " + - "getSnapshotBeforeUpdate. " + - "This might either be because of a bug in React, or because " + - "a component reassigns its own `this.state`. " + - "Please file an issue.", - getComponentNameFromFiber(finishedWork) || "instance" - ); - } - } - } + updateHostText(current, workInProgress, oldText, newText); + } else { + if (typeof newText !== "string") { + if (workInProgress.stateNode === null) { + throw new Error( + "We must have new props for new mounts. This error is likely " + + "caused by a bug in React. Please file an issue." + ); + } // This can happen when we abort work. + } - var snapshot = instance.getSnapshotBeforeUpdate( - finishedWork.elementType === finishedWork.type - ? prevProps - : resolveDefaultProps(finishedWork.type, prevProps), - prevState - ); + var _rootContainerInstance2 = getRootHostContainer(); - { - var didWarnSet = didWarnAboutUndefinedSnapshotBeforeUpdate; + var _currentHostContext3 = getHostContext(); - if (snapshot === undefined && !didWarnSet.has(finishedWork.type)) { - didWarnSet.add(finishedWork.type); + var _wasHydrated3 = popHydrationState(); - error( - "%s.getSnapshotBeforeUpdate(): A snapshot value (or null) " + - "must be returned. You have returned undefined.", - getComponentNameFromFiber(finishedWork) - ); - } + if (_wasHydrated3) { + if (prepareToHydrateHostTextInstance()) { + markUpdate(workInProgress); } - - instance.__reactInternalSnapshotBeforeUpdate = snapshot; + } else { + workInProgress.stateNode = createTextInstance( + newText, + _rootContainerInstance2, + _currentHostContext3, + workInProgress + ); } } - break; + bubbleProperties(workInProgress); + return null; } - case HostRoot: { - break; - } + case SuspenseComponent: { + popSuspenseHandler(workInProgress); + var nextState = workInProgress.memoizedState; // Special path for dehydrated boundaries. We may eventually move this + // to its own fiber type so that we can add other kinds of hydration + // boundaries that aren't associated with a Suspense tree. In anticipation + // of such a refactor, all the hydration logic is contained in + // this branch. - case HostComponent: - case HostHoistable: - case HostSingleton: - case HostText: - case HostPortal: - case IncompleteClassComponent: - // Nothing to do for these component types - break; + if ( + current === null || + (current.memoizedState !== null && + current.memoizedState.dehydrated !== null) + ) { + var fallthroughToNormalSuspensePath = + completeDehydratedSuspenseBoundary( + current, + workInProgress, + nextState + ); - default: { - if ((flags & Snapshot) !== NoFlags$1) { - throw new Error( - "This unit of work tag should not have side-effects. This error is " + - "likely caused by a bug in React. Please file an issue." - ); + if (!fallthroughToNormalSuspensePath) { + if (workInProgress.flags & ForceClientRender) { + // Special case. There were remaining unhydrated nodes. We treat + // this as a mismatch. Revert to client rendering. + return workInProgress; + } else { + // Did not finish hydrating, either because this is the initial + // render or because something suspended. + return null; + } + } // Continue with the normal Suspense path. } - } - } - if ((flags & Snapshot) !== NoFlags$1) { - resetCurrentFiber(); - } -} + if ((workInProgress.flags & DidCapture) !== NoFlags$1) { + // Something suspended. Re-render with the fallback children. + workInProgress.lanes = renderLanes; // Do not reset the effect list. -function commitHookEffectListUnmount( - flags, - finishedWork, - nearestMountedAncestor -) { - var updateQueue = finishedWork.updateQueue; - var lastEffect = updateQueue !== null ? updateQueue.lastEffect : null; + if ((workInProgress.mode & ProfileMode) !== NoMode) { + transferActualDuration(workInProgress); + } // Don't bubble properties in this case. - if (lastEffect !== null) { - var firstEffect = lastEffect.next; - var effect = firstEffect; + return workInProgress; + } - do { - if ((effect.tag & flags) === flags) { - // Unmount - var destroy = effect.destroy; - effect.destroy = undefined; + var nextDidTimeout = nextState !== null; + var prevDidTimeout = current !== null && current.memoizedState !== null; + // a passive effect, which is when we process the transitions - if (destroy !== undefined) { - { - if ((flags & Passive) !== NoFlags) { - markComponentPassiveEffectUnmountStarted(finishedWork); - } else if ((flags & Layout) !== NoFlags) { - markComponentLayoutEffectUnmountStarted(finishedWork); - } - } + if (nextDidTimeout !== prevDidTimeout) { + // an effect to toggle the subtree's visibility. When we switch from + // fallback -> primary, the inner Offscreen fiber schedules this effect + // as part of its normal complete phase. But when we switch from + // primary -> fallback, the inner Offscreen fiber does not have a complete + // phase. So we need to schedule its effect here. + // + // We also use this flag to connect/disconnect the effects, but the same + // logic applies: when re-connecting, the Offscreen fiber's complete + // phase will handle scheduling the effect. It's only when the fallback + // is active that we have to do anything special. - { - if ((flags & Insertion) !== NoFlags) { - setIsRunningInsertionEffect(true); - } - } + if (nextDidTimeout) { + var _offscreenFiber2 = workInProgress.child; + _offscreenFiber2.flags |= Visibility; + } + } - safelyCallDestroy(finishedWork, nearestMountedAncestor, destroy); + var retryQueue = workInProgress.updateQueue; + scheduleRetryEffect(workInProgress, retryQueue); - { - if ((flags & Insertion) !== NoFlags) { - setIsRunningInsertionEffect(false); - } - } + bubbleProperties(workInProgress); - { - if ((flags & Passive) !== NoFlags) { - markComponentPassiveEffectUnmountStopped(); - } else if ((flags & Layout) !== NoFlags) { - markComponentLayoutEffectUnmountStopped(); + { + if ((workInProgress.mode & ProfileMode) !== NoMode) { + if (nextDidTimeout) { + // Don't count time spent in a timed out Suspense subtree as part of the base duration. + var primaryChildFragment = workInProgress.child; + + if (primaryChildFragment !== null) { + // $FlowFixMe Flow doesn't support type casting in combination with the -= operator + workInProgress.treeBaseDuration -= + primaryChildFragment.treeBaseDuration; } } } } - effect = effect.next; - } while (effect !== firstEffect); - } -} + return null; + } -function commitHookEffectListMount(flags, finishedWork) { - var updateQueue = finishedWork.updateQueue; - var lastEffect = updateQueue !== null ? updateQueue.lastEffect : null; + case HostPortal: + popHostContainer(workInProgress); + updateHostContainer(current, workInProgress); - if (lastEffect !== null) { - var firstEffect = lastEffect.next; - var effect = firstEffect; + bubbleProperties(workInProgress); + return null; - do { - if ((effect.tag & flags) === flags) { - { - if ((flags & Passive) !== NoFlags) { - markComponentPassiveEffectMountStarted(finishedWork); - } else if ((flags & Layout) !== NoFlags) { - markComponentLayoutEffectMountStarted(finishedWork); - } - } // Mount + case ContextProvider: + // Pop provider fiber + var context = workInProgress.type._context; + popProvider(context, workInProgress); + bubbleProperties(workInProgress); + return null; - var create = effect.create; + case IncompleteClassComponent: { + // Same as class component case. I put it down here so that the tags are + // sequential to ensure this switch is compiled to a jump table. + var _Component = workInProgress.type; - { - if ((flags & Insertion) !== NoFlags) { - setIsRunningInsertionEffect(true); - } - } + if (isContextProvider(_Component)) { + popContext(workInProgress); + } - effect.destroy = create(); + bubbleProperties(workInProgress); + return null; + } - { - if ((flags & Insertion) !== NoFlags) { - setIsRunningInsertionEffect(false); - } - } + case SuspenseListComponent: { + popSuspenseListContext(workInProgress); + var renderState = workInProgress.memoizedState; - { - if ((flags & Passive) !== NoFlags) { - markComponentPassiveEffectMountStopped(); - } else if ((flags & Layout) !== NoFlags) { - markComponentLayoutEffectMountStopped(); - } - } + if (renderState === null) { + // We're running in the default, "independent" mode. + // We don't do anything in this mode. + bubbleProperties(workInProgress); + return null; + } - { - var destroy = effect.destroy; + var didSuspendAlready = (workInProgress.flags & DidCapture) !== NoFlags$1; + var renderedTail = renderState.rendering; - if (destroy !== undefined && typeof destroy !== "function") { - var hookName = void 0; + if (renderedTail === null) { + // We just rendered the head. + if (!didSuspendAlready) { + // This is the first pass. We need to figure out if anything is still + // suspended in the rendered set. + // If new content unsuspended, but there's still some content that + // didn't. Then we need to do a second pass that forces everything + // to keep showing their fallbacks. + // We might be suspended if something in this render pass suspended, or + // something in the previous committed pass suspended. Otherwise, + // there's no chance so we can skip the expensive call to + // findFirstSuspended. + var cannotBeSuspended = + renderHasNotSuspendedYet() && + (current === null || (current.flags & DidCapture) === NoFlags$1); - if ((effect.tag & Layout) !== NoFlags$1) { - hookName = "useLayoutEffect"; - } else if ((effect.tag & Insertion) !== NoFlags$1) { - hookName = "useInsertionEffect"; - } else { - hookName = "useEffect"; - } + if (!cannotBeSuspended) { + var row = workInProgress.child; - var addendum = void 0; + while (row !== null) { + var suspended = findFirstSuspended(row); - if (destroy === null) { - addendum = - " You returned null. If your effect does not require clean " + - "up, return undefined (or nothing)."; - } else if (typeof destroy.then === "function") { - addendum = - "\n\nIt looks like you wrote " + - hookName + - "(async () => ...) or returned a Promise. " + - "Instead, write the async function inside your effect " + - "and call it immediately:\n\n" + - hookName + - "(() => {\n" + - " async function fetchData() {\n" + - " // You can await here\n" + - " const response = await MyAPI.getData(someId);\n" + - " // ...\n" + - " }\n" + - " fetchData();\n" + - "}, [someId]); // Or [] if effect doesn't need props or state\n\n" + - "Learn more about data fetching with Hooks: https://reactjs.org/link/hooks-data-fetching"; - } else { - addendum = " You returned: " + destroy; - } + if (suspended !== null) { + didSuspendAlready = true; + workInProgress.flags |= DidCapture; + cutOffTailIfNeeded(renderState, false); // If this is a newly suspended tree, it might not get committed as + // part of the second pass. In that case nothing will subscribe to + // its thenables. Instead, we'll transfer its thenables to the + // SuspenseList so that it can retry if they resolve. + // There might be multiple of these in the list but since we're + // going to wait for all of them anyway, it doesn't really matter + // which ones gets to ping. In theory we could get clever and keep + // track of how many dependencies remain but it gets tricky because + // in the meantime, we can add/remove/change items and dependencies. + // We might bail out of the loop before finding any but that + // doesn't matter since that means that the other boundaries that + // we did find already has their listeners attached. - error( - "%s must not return anything besides a function, " + - "which is used for clean-up.%s", - hookName, - addendum - ); + var _retryQueue = suspended.updateQueue; + workInProgress.updateQueue = _retryQueue; + scheduleRetryEffect(workInProgress, _retryQueue); // Rerender the whole list, but this time, we'll force fallbacks + // to stay in place. + // Reset the effect flags before doing the second pass since that's now invalid. + // Reset the child fibers to their original state. + + workInProgress.subtreeFlags = NoFlags$1; + resetChildFibers(workInProgress, renderLanes); // Set up the Suspense List Context to force suspense and + // immediately rerender the children. + + pushSuspenseListContext( + workInProgress, + setShallowSuspenseListContext( + suspenseStackCursor.current, + ForceSuspenseFallback + ) + ); // Don't bubble properties in this case. + + return workInProgress.child; + } + + row = row.sibling; + } } - } - } - effect = effect.next; - } while (effect !== firstEffect); - } -} + if (renderState.tail !== null && now$1() > getRenderTargetTime()) { + // We have already passed our CPU deadline but we still have rows + // left in the tail. We'll just give up further attempts to render + // the main content and only render fallbacks. + workInProgress.flags |= DidCapture; + didSuspendAlready = true; + cutOffTailIfNeeded(renderState, false); // Since nothing actually suspended, there will nothing to ping this + // to get it started back up to attempt the next item. While in terms + // of priority this work has the same priority as this current render, + // it's not part of the same transition once the transition has + // committed. If it's sync, we still want to yield so that it can be + // painted. Conceptually, this is really the same as pinging. + // We can use any RetryLane even if it's the one currently rendering + // since we're leaving it behind on this node. -function commitPassiveEffectDurations(finishedRoot, finishedWork) { - if (getExecutionContext() & CommitContext) { - // Only Profilers with work in their subtree will have an Update effect scheduled. - if ((finishedWork.flags & Update) !== NoFlags$1) { - switch (finishedWork.tag) { - case Profiler: { - var passiveEffectDuration = - finishedWork.stateNode.passiveEffectDuration; - var _finishedWork$memoize = finishedWork.memoizedProps, - id = _finishedWork$memoize.id, - onPostCommit = _finishedWork$memoize.onPostCommit; // This value will still reflect the previous commit phase. - // It does not get reset until the start of the next commit phase. + workInProgress.lanes = SomeRetryLane; + } + } else { + cutOffTailIfNeeded(renderState, false); + } // Next we're going to render the tail. + } else { + // Append the rendered row to the child list. + if (!didSuspendAlready) { + var _suspended = findFirstSuspended(renderedTail); + + if (_suspended !== null) { + workInProgress.flags |= DidCapture; + didSuspendAlready = true; // Ensure we transfer the update queue to the parent so that it doesn't + // get lost if this row ends up dropped during a second pass. - var commitTime = getCommitTime(); - var phase = finishedWork.alternate === null ? "mount" : "update"; + var _retryQueue2 = _suspended.updateQueue; + workInProgress.updateQueue = _retryQueue2; + scheduleRetryEffect(workInProgress, _retryQueue2); + cutOffTailIfNeeded(renderState, true); // This might have been modified. - { - if (isCurrentUpdateNested()) { - phase = "nested-update"; + if ( + renderState.tail === null && + renderState.tailMode === "hidden" && + !renderedTail.alternate && + !getIsHydrating() // We don't cut it if we're hydrating. + ) { + // We're done. + bubbleProperties(workInProgress); + return null; } - } - - if (typeof onPostCommit === "function") { - onPostCommit(id, phase, passiveEffectDuration, commitTime); - } // Bubble times to the next nearest ancestor Profiler. - // After we process that Profiler, we'll bubble further up. - - var parentFiber = finishedWork.return; + } else if ( + // The time it took to render last row is greater than the remaining + // time we have to render. So rendering one more row would likely + // exceed it. + now$1() * 2 - renderState.renderingStartTime > + getRenderTargetTime() && + renderLanes !== OffscreenLane + ) { + // We have now passed our CPU deadline and we'll just give up further + // attempts to render the main content and only render fallbacks. + // The assumption is that this is usually faster. + workInProgress.flags |= DidCapture; + didSuspendAlready = true; + cutOffTailIfNeeded(renderState, false); // Since nothing actually suspended, there will nothing to ping this + // to get it started back up to attempt the next item. While in terms + // of priority this work has the same priority as this current render, + // it's not part of the same transition once the transition has + // committed. If it's sync, we still want to yield so that it can be + // painted. Conceptually, this is really the same as pinging. + // We can use any RetryLane even if it's the one currently rendering + // since we're leaving it behind on this node. - outer: while (parentFiber !== null) { - switch (parentFiber.tag) { - case HostRoot: - var root = parentFiber.stateNode; - root.passiveEffectDuration += passiveEffectDuration; - break outer; + workInProgress.lanes = SomeRetryLane; + } + } - case Profiler: - var parentStateNode = parentFiber.stateNode; - parentStateNode.passiveEffectDuration += passiveEffectDuration; - break outer; - } + if (renderState.isBackwards) { + // The effect list of the backwards tail will have been added + // to the end. This breaks the guarantee that life-cycles fire in + // sibling order but that isn't a strong guarantee promised by React. + // Especially since these might also just pop in during future commits. + // Append to the beginning of the list. + renderedTail.sibling = workInProgress.child; + workInProgress.child = renderedTail; + } else { + var previousSibling = renderState.last; - parentFiber = parentFiber.return; + if (previousSibling !== null) { + previousSibling.sibling = renderedTail; + } else { + workInProgress.child = renderedTail; } - break; + renderState.last = renderedTail; } } - } - } -} - -function commitHookLayoutEffects(finishedWork, hookFlags) { - // At this point layout effects have already been destroyed (during mutation phase). - // This is done to prevent sibling component effects from interfering with each other, - // e.g. a destroy function in one component should never override a ref set - // by a create function in another component during the same commit. - if (shouldProfile(finishedWork)) { - try { - startLayoutEffectTimer(); - commitHookEffectListMount(hookFlags, finishedWork); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); - } - recordLayoutEffectDuration(finishedWork); - } else { - try { - commitHookEffectListMount(hookFlags, finishedWork); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); - } - } -} + if (renderState.tail !== null) { + // We still have tail rows to render. + // Pop a row. + var next = renderState.tail; + renderState.rendering = next; + renderState.tail = next.sibling; + renderState.renderingStartTime = now$1(); + next.sibling = null; // Restore the context. + // TODO: We can probably just avoid popping it instead and only + // setting it the first time we go from not suspended to suspended. -function commitClassLayoutLifecycles(finishedWork, current) { - var instance = finishedWork.stateNode; + var suspenseContext = suspenseStackCursor.current; - if (current === null) { - // We could update instance props and state here, - // but instead we rely on them being set during last render. - // TODO: revisit this when we implement resuming. - { - if ( - finishedWork.type === finishedWork.elementType && - !didWarnAboutReassigningProps - ) { - if (instance.props !== finishedWork.memoizedProps) { - error( - "Expected %s props to match memoized props before " + - "componentDidMount. " + - "This might either be because of a bug in React, or because " + - "a component reassigns its own `this.props`. " + - "Please file an issue.", - getComponentNameFromFiber(finishedWork) || "instance" + if (didSuspendAlready) { + suspenseContext = setShallowSuspenseListContext( + suspenseContext, + ForceSuspenseFallback ); + } else { + suspenseContext = + setDefaultShallowSuspenseListContext(suspenseContext); } - if (instance.state !== finishedWork.memoizedState) { - error( - "Expected %s state to match memoized state before " + - "componentDidMount. " + - "This might either be because of a bug in React, or because " + - "a component reassigns its own `this.state`. " + - "Please file an issue.", - getComponentNameFromFiber(finishedWork) || "instance" - ); - } - } - } + pushSuspenseListContext(workInProgress, suspenseContext); // Do a pass over the next row. + // Don't bubble properties in this case. - if (shouldProfile(finishedWork)) { - try { - startLayoutEffectTimer(); - instance.componentDidMount(); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); + return next; } - recordLayoutEffectDuration(finishedWork); - } else { - try { - instance.componentDidMount(); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); - } + bubbleProperties(workInProgress); + return null; } - } else { - var prevProps = - finishedWork.elementType === finishedWork.type - ? current.memoizedProps - : resolveDefaultProps(finishedWork.type, current.memoizedProps); - var prevState = current.memoizedState; // We could update instance props and state here, - // but instead we rely on them being set during last render. - // TODO: revisit this when we implement resuming. - { - if ( - finishedWork.type === finishedWork.elementType && - !didWarnAboutReassigningProps - ) { - if (instance.props !== finishedWork.memoizedProps) { - error( - "Expected %s props to match memoized props before " + - "componentDidUpdate. " + - "This might either be because of a bug in React, or because " + - "a component reassigns its own `this.props`. " + - "Please file an issue.", - getComponentNameFromFiber(finishedWork) || "instance" - ); - } + case ScopeComponent: { + break; + } - if (instance.state !== finishedWork.memoizedState) { - error( - "Expected %s state to match memoized state before " + - "componentDidUpdate. " + - "This might either be because of a bug in React, or because " + - "a component reassigns its own `this.state`. " + - "Please file an issue.", - getComponentNameFromFiber(finishedWork) || "instance" - ); + case OffscreenComponent: + case LegacyHiddenComponent: { + popSuspenseHandler(workInProgress); + popHiddenContext(workInProgress); + var _nextState = workInProgress.memoizedState; + var nextIsHidden = _nextState !== null; // Schedule a Visibility effect if the visibility has changed + + if (workInProgress.tag === LegacyHiddenComponent); + else { + if (current !== null) { + var _prevState = current.memoizedState; + var prevIsHidden = _prevState !== null; + + if (prevIsHidden !== nextIsHidden) { + workInProgress.flags |= Visibility; + } + } else { + // On initial mount, we only need a Visibility effect if the tree + // is hidden. + if (nextIsHidden) { + workInProgress.flags |= Visibility; + } } } - } - if (shouldProfile(finishedWork)) { - try { - startLayoutEffectTimer(); - instance.componentDidUpdate( - prevProps, - prevState, - instance.__reactInternalSnapshotBeforeUpdate - ); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); + if (!nextIsHidden || (workInProgress.mode & ConcurrentMode) === NoMode) { + bubbleProperties(workInProgress); + } else { + // Don't bubble properties for hidden children unless we're rendering + // at offscreen priority. + if ( + includesSomeLane(renderLanes, OffscreenLane) && // Also don't bubble if the tree suspended + (workInProgress.flags & DidCapture) === NoLanes + ) { + bubbleProperties(workInProgress); // Check if there was an insertion or update in the hidden subtree. + // If so, we need to hide those nodes in the commit phase, so + // schedule a visibility effect. + + if ( + workInProgress.tag !== LegacyHiddenComponent && + workInProgress.subtreeFlags & (Placement | Update) + ) { + workInProgress.flags |= Visibility; + } + } } - recordLayoutEffectDuration(finishedWork); - } else { - try { - instance.componentDidUpdate( - prevProps, - prevState, - instance.__reactInternalSnapshotBeforeUpdate - ); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); + var offscreenQueue = workInProgress.updateQueue; + + if (offscreenQueue !== null) { + var _retryQueue3 = offscreenQueue.retryQueue; + scheduleRetryEffect(workInProgress, _retryQueue3); } + return null; + } + + case CacheComponent: { + return null; + } + + case TracingMarkerComponent: { + return null; } } + + throw new Error( + "Unknown unit of work tag (" + + workInProgress.tag + + "). This error is likely caused by a bug in " + + "React. Please file an issue." + ); } -function commitClassCallbacks(finishedWork) { - // TODO: I think this is now always non-null by the time it reaches the - // commit phase. Consider removing the type check. - var updateQueue = finishedWork.updateQueue; +function unwindWork(current, workInProgress, renderLanes) { + switch (workInProgress.tag) { + case ClassComponent: { + var Component = workInProgress.type; - if (updateQueue !== null) { - var instance = finishedWork.stateNode; + if (isContextProvider(Component)) { + popContext(workInProgress); + } - { - if ( - finishedWork.type === finishedWork.elementType && - !didWarnAboutReassigningProps - ) { - if (instance.props !== finishedWork.memoizedProps) { - error( - "Expected %s props to match memoized props before " + - "processing the update queue. " + - "This might either be because of a bug in React, or because " + - "a component reassigns its own `this.props`. " + - "Please file an issue.", - getComponentNameFromFiber(finishedWork) || "instance" - ); - } + var flags = workInProgress.flags; - if (instance.state !== finishedWork.memoizedState) { - error( - "Expected %s state to match memoized state before " + - "processing the update queue. " + - "This might either be because of a bug in React, or because " + - "a component reassigns its own `this.state`. " + - "Please file an issue.", - getComponentNameFromFiber(finishedWork) || "instance" - ); + if (flags & ShouldCapture) { + workInProgress.flags = (flags & ~ShouldCapture) | DidCapture; + + if ((workInProgress.mode & ProfileMode) !== NoMode) { + transferActualDuration(workInProgress); } + + return workInProgress; } - } // We could update instance props and state here, - // but instead we rely on them being set during last render. - // TODO: revisit this when we implement resuming. - try { - commitCallbacks(updateQueue, instance); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); + return null; } - } -} -function commitHostComponentMount(finishedWork) { - var type = finishedWork.type; - var props = finishedWork.memoizedProps; - var instance = finishedWork.stateNode; + case HostRoot: { + popHostContainer(workInProgress); + popTopLevelContextObject(workInProgress); + resetWorkInProgressVersions(); + var _flags = workInProgress.flags; - try { - commitMount(instance, type, props, finishedWork); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); - } -} + if ( + (_flags & ShouldCapture) !== NoFlags$1 && + (_flags & DidCapture) === NoFlags$1 + ) { + // There was an error during render that wasn't captured by a suspense + // boundary. Do a second pass on the root to unmount the children. + workInProgress.flags = (_flags & ~ShouldCapture) | DidCapture; + return workInProgress; + } // We unwound to the root without completing it. Exit. -function commitProfilerUpdate(finishedWork, current) { - if (getExecutionContext() & CommitContext) { - try { - var _finishedWork$memoize2 = finishedWork.memoizedProps, - onCommit = _finishedWork$memoize2.onCommit, - onRender = _finishedWork$memoize2.onRender; - var effectDuration = finishedWork.stateNode.effectDuration; - var commitTime = getCommitTime(); - var phase = current === null ? "mount" : "update"; + return null; + } - if (enableProfilerNestedUpdatePhase) { - if (isCurrentUpdateNested()) { - phase = "nested-update"; + case HostHoistable: + case HostSingleton: + case HostComponent: { + // TODO: popHydrationState + popHostContext(workInProgress); + return null; + } + + case SuspenseComponent: { + popSuspenseHandler(workInProgress); + var suspenseState = workInProgress.memoizedState; + + if (suspenseState !== null && suspenseState.dehydrated !== null) { + if (workInProgress.alternate === null) { + throw new Error( + "Threw in newly mounted dehydrated component. This is likely a bug in " + + "React. Please file an issue." + ); } } - if (typeof onRender === "function") { - onRender( - finishedWork.memoizedProps.id, - phase, - finishedWork.actualDuration, - finishedWork.treeBaseDuration, - finishedWork.actualStartTime, - commitTime - ); - } + var _flags2 = workInProgress.flags; - if (enableProfilerCommitHooks) { - if (typeof onCommit === "function") { - onCommit( - finishedWork.memoizedProps.id, - phase, - effectDuration, - commitTime - ); - } // Schedule a passive effect for this Profiler to call onPostCommit hooks. - // This effect should be scheduled even if there is no onPostCommit callback for this Profiler, - // because the effect is also where times bubble to parent Profilers. + if (_flags2 & ShouldCapture) { + workInProgress.flags = (_flags2 & ~ShouldCapture) | DidCapture; // Captured a suspense effect. Re-render the boundary. - enqueuePendingPassiveProfilerEffect(finishedWork); // Propagate layout effect durations to the next nearest Profiler ancestor. - // Do not reset these values until the next render so DevTools has a chance to read them first. + if ((workInProgress.mode & ProfileMode) !== NoMode) { + transferActualDuration(workInProgress); + } - var parentFiber = finishedWork.return; + return workInProgress; + } - outer: while (parentFiber !== null) { - switch (parentFiber.tag) { - case HostRoot: - var root = parentFiber.stateNode; - root.effectDuration += effectDuration; - break outer; + return null; + } - case Profiler: - var parentStateNode = parentFiber.stateNode; - parentStateNode.effectDuration += effectDuration; - break outer; - } + case SuspenseListComponent: { + popSuspenseListContext(workInProgress); // SuspenseList doesn't actually catch anything. It should've been + // caught by a nested boundary. If not, it should bubble through. - parentFiber = parentFiber.return; - } - } - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); + return null; } - } -} -function commitLayoutEffectOnFiber( - finishedRoot, - current, - finishedWork, - committedLanes -) { - // When updating this function, also update reappearLayoutEffects, which does - // most of the same things when an offscreen tree goes from hidden -> visible. - var flags = finishedWork.flags; + case HostPortal: + popHostContainer(workInProgress); + return null; - switch (finishedWork.tag) { - case FunctionComponent: - case ForwardRef: - case SimpleMemoComponent: { - recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); + case ContextProvider: + var context = workInProgress.type._context; + popProvider(context, workInProgress); + return null; - if (flags & Update) { - commitHookLayoutEffects(finishedWork, Layout | HasEffect); + case OffscreenComponent: + case LegacyHiddenComponent: { + popSuspenseHandler(workInProgress); + popHiddenContext(workInProgress); + var _flags3 = workInProgress.flags; + + if (_flags3 & ShouldCapture) { + workInProgress.flags = (_flags3 & ~ShouldCapture) | DidCapture; // Captured a suspense effect. Re-render the boundary. + + if ((workInProgress.mode & ProfileMode) !== NoMode) { + transferActualDuration(workInProgress); + } + + return workInProgress; } - break; + return null; } - case ClassComponent: { - recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); + case CacheComponent: + return null; - if (flags & Update) { - commitClassLayoutLifecycles(finishedWork, current); - } + case TracingMarkerComponent: + return null; - if (flags & Callback) { - commitClassCallbacks(finishedWork); - } + default: + return null; + } +} + +function unwindInterruptedWork(current, interruptedWork, renderLanes) { + switch (interruptedWork.tag) { + case ClassComponent: { + var childContextTypes = interruptedWork.type.childContextTypes; - if (flags & Ref) { - safelyAttachRef(finishedWork, finishedWork.return); + if (childContextTypes !== null && childContextTypes !== undefined) { + popContext(interruptedWork); } break; } case HostRoot: { - recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); - - if (flags & Callback) { - // TODO: I think this is now always non-null by the time it reaches the - // commit phase. Consider removing the type check. - var updateQueue = finishedWork.updateQueue; - - if (updateQueue !== null) { - var instance = null; - - if (finishedWork.child !== null) { - switch (finishedWork.child.tag) { - case HostSingleton: - case HostComponent: - instance = getPublicInstance(finishedWork.child.stateNode); - break; - - case ClassComponent: - instance = finishedWork.child.stateNode; - break; - } - } - - try { - commitCallbacks(updateQueue, instance); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); - } - } - } - + popHostContainer(interruptedWork); + popTopLevelContextObject(interruptedWork); + resetWorkInProgressVersions(); break; } case HostHoistable: - // eslint-disable-next-line-no-fallthrough - case HostSingleton: case HostComponent: { - recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); // Renderers may schedule work to be done after host components are mounted - // (eg DOM renderer may schedule auto-focus for inputs and form controls). - // These effects should only be committed when components are first mounted, - // aka when there is no current/alternate. - - if (current === null && flags & Update) { - commitHostComponentMount(finishedWork); - } - - if (flags & Ref) { - safelyAttachRef(finishedWork, finishedWork.return); - } - + popHostContext(interruptedWork); break; } - case Profiler: { - recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); // TODO: Should this fire inside an offscreen tree? Or should it wait to - // fire when the tree becomes visible again. + case HostPortal: + popHostContainer(interruptedWork); + break; - if (flags & Update) { - commitProfilerUpdate(finishedWork, current); - } + case SuspenseComponent: + popSuspenseHandler(interruptedWork); + break; + case SuspenseListComponent: + popSuspenseListContext(interruptedWork); break; - } - case SuspenseComponent: { - recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); + case ContextProvider: + var context = interruptedWork.type._context; + popProvider(context, interruptedWork); + break; + case OffscreenComponent: + case LegacyHiddenComponent: + popSuspenseHandler(interruptedWork); + popHiddenContext(interruptedWork); break; - } + } +} - case OffscreenComponent: { - var isModernRoot = (finishedWork.mode & ConcurrentMode) !== NoMode; +var didWarnAboutUndefinedSnapshotBeforeUpdate = null; - if (isModernRoot) { - var isHidden = finishedWork.memoizedState !== null; - var newOffscreenSubtreeIsHidden = isHidden || offscreenSubtreeIsHidden; +{ + didWarnAboutUndefinedSnapshotBeforeUpdate = new Set(); +} // Used during the commit phase to track the state of the Offscreen component stack. +// Allows us to avoid traversing the return path to find the nearest Offscreen ancestor. - if (newOffscreenSubtreeIsHidden); - else { - // The Offscreen tree is visible. - var wasHidden = current !== null && current.memoizedState !== null; - var newOffscreenSubtreeWasHidden = - wasHidden || offscreenSubtreeWasHidden; - var prevOffscreenSubtreeIsHidden = offscreenSubtreeIsHidden; - var prevOffscreenSubtreeWasHidden = offscreenSubtreeWasHidden; - offscreenSubtreeIsHidden = newOffscreenSubtreeIsHidden; - offscreenSubtreeWasHidden = newOffscreenSubtreeWasHidden; +var offscreenSubtreeIsHidden = false; +var offscreenSubtreeWasHidden = false; +var PossiblyWeakSet = typeof WeakSet === "function" ? WeakSet : Set; +var nextEffect = null; // Used for Profiling builds to track updaters. - if (offscreenSubtreeWasHidden && !prevOffscreenSubtreeWasHidden) { - // This is the root of a reappearing boundary. As we continue - // traversing the layout effects, we must also re-mount layout - // effects that were unmounted when the Offscreen subtree was - // hidden. So this is a superset of the normal commitLayoutEffects. - var includeWorkInProgressEffects = - (finishedWork.subtreeFlags & LayoutMask) !== NoFlags$1; - recursivelyTraverseReappearLayoutEffects( - finishedRoot, - finishedWork, - includeWorkInProgressEffects - ); - } else { - recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); - } +var inProgressLanes = null; +var inProgressRoot = null; - offscreenSubtreeIsHidden = prevOffscreenSubtreeIsHidden; - offscreenSubtreeWasHidden = prevOffscreenSubtreeWasHidden; - } - } else { - recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); - } +function shouldProfile(current) { + return ( + (current.mode & ProfileMode) !== NoMode && + (getExecutionContext() & CommitContext) !== NoContext + ); +} - if (flags & Ref) { - var props = finishedWork.memoizedProps; +function reportUncaughtErrorInDEV(error) { + // Wrapping each small part of the commit phase into a guarded + // callback is a bit too slow (https://github.com/facebook/react/pull/21666). + // But we rely on it to surface errors to DEV tools like overlays + // (https://github.com/facebook/react/issues/21712). + // As a compromise, rethrow only caught errors in a guard. + { + invokeGuardedCallback(null, function () { + throw error; + }); + clearCaughtError(); + } +} - if (props.mode === "manual") { - safelyAttachRef(finishedWork, finishedWork.return); - } else { - safelyDetachRef(finishedWork, finishedWork.return); - } - } +function callComponentWillUnmountWithTimer(current, instance) { + instance.props = current.memoizedProps; + instance.state = current.memoizedState; - break; + if (shouldProfile(current)) { + try { + startLayoutEffectTimer(); + instance.componentWillUnmount(); + } finally { + recordLayoutEffectDuration(current); } + } else { + instance.componentWillUnmount(); + } +} // Capture errors so they don't interrupt unmounting. - default: { - recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); - break; - } +function safelyCallComponentWillUnmount( + current, + nearestMountedAncestor, + instance +) { + try { + callComponentWillUnmountWithTimer(current, instance); + } catch (error) { + captureCommitPhaseError(current, nearestMountedAncestor, error); + } +} // Capture errors so they don't interrupt mounting. + +function safelyAttachRef(current, nearestMountedAncestor) { + try { + commitAttachRef(current); + } catch (error) { + captureCommitPhaseError(current, nearestMountedAncestor, error); } } -function commitAttachRef(finishedWork) { - var ref = finishedWork.ref; +function safelyDetachRef(current, nearestMountedAncestor) { + var ref = current.ref; + var refCleanup = current.refCleanup; if (ref !== null) { - var instance = finishedWork.stateNode; - var instanceToUse; - - switch (finishedWork.tag) { - case HostHoistable: - case HostSingleton: - case HostComponent: - instanceToUse = getPublicInstance(instance); - break; + if (typeof refCleanup === "function") { + try { + if (shouldProfile(current)) { + try { + startLayoutEffectTimer(); + refCleanup(); + } finally { + recordLayoutEffectDuration(current); + } + } else { + refCleanup(); + } + } catch (error) { + captureCommitPhaseError(current, nearestMountedAncestor, error); + } finally { + // `refCleanup` has been called. Nullify all references to it to prevent double invocation. + current.refCleanup = null; + var finishedWork = current.alternate; - default: - instanceToUse = instance; - } // Moved outside to ensure DCE works with this flag + if (finishedWork != null) { + finishedWork.refCleanup = null; + } + } + } else if (typeof ref === "function") { + var retVal; - if (typeof ref === "function") { - if (shouldProfile(finishedWork)) { - try { - startLayoutEffectTimer(); - finishedWork.refCleanup = ref(instanceToUse); - } finally { - recordLayoutEffectDuration(finishedWork); + try { + if (shouldProfile(current)) { + try { + startLayoutEffectTimer(); + retVal = ref(null); + } finally { + recordLayoutEffectDuration(current); + } + } else { + retVal = ref(null); } - } else { - finishedWork.refCleanup = ref(instanceToUse); + } catch (error) { + captureCommitPhaseError(current, nearestMountedAncestor, error); } - } else { + { - if (!ref.hasOwnProperty("current")) { + if (typeof retVal === "function") { error( - "Unexpected ref object provided for %s. " + - "Use either a ref-setter function or React.createRef().", - getComponentNameFromFiber(finishedWork) + "Unexpected return value from a callback ref in %s. " + + "A callback ref should not return a function.", + getComponentNameFromFiber(current) ); } - } // $FlowFixMe unable to narrow type to the non-function case - - ref.current = instanceToUse; + } + } else { + // $FlowFixMe unable to narrow type to RefObject + ref.current = null; } } } -function detachFiberMutation(fiber) { - // Cut off the return pointer to disconnect it from the tree. - // This enables us to detect and warn against state updates on an unmounted component. - // It also prevents events from bubbling from within disconnected components. - // - // Ideally, we should also clear the child pointer of the parent alternate to let this - // get GC:ed but we don't know which for sure which parent is the current - // one so we'll settle for GC:ing the subtree of this child. - // This child itself will be GC:ed when the parent updates the next time. - // - // Note that we can't clear child or sibling pointers yet. - // They're needed for passive effects and for findDOMNode. - // We defer those fields, and all other cleanup, to the passive phase (see detachFiberAfterEffects). - // - // Don't reset the alternate yet, either. We need that so we can detach the - // alternate's fields in the passive phase. Clearing the return pointer is - // sufficient for findDOMNode semantics. - var alternate = fiber.alternate; - - if (alternate !== null) { - alternate.return = null; +function safelyCallDestroy(current, nearestMountedAncestor, destroy) { + try { + destroy(); + } catch (error) { + captureCommitPhaseError(current, nearestMountedAncestor, error); } - - fiber.return = null; -} - -function detachFiberAfterEffects(fiber) { - var alternate = fiber.alternate; - - if (alternate !== null) { - fiber.alternate = null; - detachFiberAfterEffects(alternate); - } // Clear cyclical Fiber fields. This level alone is designed to roughly - // approximate the planned Fiber refactor. In that world, `setState` will be - // bound to a special "instance" object instead of a Fiber. The Instance - // object will not have any of these fields. It will only be connected to - // the fiber tree via a single link at the root. So if this level alone is - // sufficient to fix memory issues, that bodes well for our plans. - - fiber.child = null; - fiber.deletions = null; - fiber.sibling = null; // The `stateNode` is cyclical because on host nodes it points to the host - - fiber.stateNode = null; - - { - fiber._debugOwner = null; - } // Theoretically, nothing in here should be necessary, because we already - // disconnected the fiber from the tree. So even if something leaks this - // particular fiber, it won't leak anything else. - - fiber.return = null; - fiber.dependencies = null; - fiber.memoizedProps = null; - fiber.memoizedState = null; - fiber.pendingProps = null; - fiber.stateNode = null; // TODO: Move to `commitPassiveUnmountInsideDeletedTreeOnFiber` instead. - - fiber.updateQueue = null; -} - -function emptyPortalContainer(current) { - var portal = current.stateNode; - var containerInfo = portal.containerInfo; - createContainerChildSet(containerInfo); } +var shouldFireAfterActiveInstanceBlur = false; +function commitBeforeMutationEffects(root, firstChild) { + nextEffect = firstChild; + commitBeforeMutationEffects_begin(); // We no longer need to track the active instance fiber -function commitPlacement(finishedWork) { - { - return; - } + var shouldFire = shouldFireAfterActiveInstanceBlur; + shouldFireAfterActiveInstanceBlur = false; + return shouldFire; } -function commitDeletionEffects(root, returnFiber, deletedFiber) { - { - // Detach refs and call componentWillUnmount() on the whole subtree. - commitDeletionEffectsOnFiber(root, returnFiber, deletedFiber); - } - - detachFiberMutation(deletedFiber); -} +function commitBeforeMutationEffects_begin() { + while (nextEffect !== null) { + var fiber = nextEffect; // This phase is only used for beforeActiveInstanceBlur. -function recursivelyTraverseDeletionEffects( - finishedRoot, - nearestMountedAncestor, - parent -) { - // TODO: Use a static flag to skip trees that don't have unmount effects - var child = parent.child; + var child = fiber.child; - while (child !== null) { - commitDeletionEffectsOnFiber(finishedRoot, nearestMountedAncestor, child); - child = child.sibling; + if ( + (fiber.subtreeFlags & BeforeMutationMask) !== NoFlags$1 && + child !== null + ) { + child.return = fiber; + nextEffect = child; + } else { + commitBeforeMutationEffects_complete(); + } } } -function commitDeletionEffectsOnFiber( - finishedRoot, - nearestMountedAncestor, - deletedFiber -) { - onCommitUnmount(deletedFiber); // The cases in this outer switch modify the stack before they traverse - // into their subtree. There are simpler cases in the inner switch - // that don't modify the stack. - - switch (deletedFiber.tag) { - case HostHoistable: - // eslint-disable-next-line no-fallthrough - - case HostSingleton: - // eslint-disable-next-line no-fallthrough +function commitBeforeMutationEffects_complete() { + while (nextEffect !== null) { + var fiber = nextEffect; + setCurrentFiber(fiber); - case HostComponent: { - if (!offscreenSubtreeWasHidden) { - safelyDetachRef(deletedFiber, nearestMountedAncestor); - } // Intentional fallthrough to next branch + try { + commitBeforeMutationEffectsOnFiber(fiber); + } catch (error) { + captureCommitPhaseError(fiber, fiber.return, error); } - // eslint-disable-next-line-no-fallthrough - case HostText: { - // We only need to remove the nearest host child. Set the host parent - // to `null` on the stack to indicate that nested children don't - // need to be removed. - { - recursivelyTraverseDeletionEffects( - finishedRoot, - nearestMountedAncestor, - deletedFiber - ); - } + resetCurrentFiber(); + var sibling = fiber.sibling; + if (sibling !== null) { + sibling.return = fiber.return; + nextEffect = sibling; return; } - case DehydratedFragment: { - return; - } + nextEffect = fiber.return; + } +} - case HostPortal: { - { - emptyPortalContainer(deletedFiber); - recursivelyTraverseDeletionEffects( - finishedRoot, - nearestMountedAncestor, - deletedFiber - ); - } +function commitBeforeMutationEffectsOnFiber(finishedWork) { + var current = finishedWork.alternate; + var flags = finishedWork.flags; - return; + if ((flags & Snapshot) !== NoFlags$1) { + setCurrentFiber(finishedWork); + } + + switch (finishedWork.tag) { + case FunctionComponent: { + break; } - case FunctionComponent: case ForwardRef: - case MemoComponent: case SimpleMemoComponent: { - if (!offscreenSubtreeWasHidden) { - var updateQueue = deletedFiber.updateQueue; - - if (updateQueue !== null) { - var lastEffect = updateQueue.lastEffect; - - if (lastEffect !== null) { - var firstEffect = lastEffect.next; - var effect = firstEffect; - - do { - var _effect = effect, - destroy = _effect.destroy, - tag = _effect.tag; - - if (destroy !== undefined) { - if ((tag & Insertion) !== NoFlags) { - safelyCallDestroy( - deletedFiber, - nearestMountedAncestor, - destroy - ); - } else if ((tag & Layout) !== NoFlags) { - { - markComponentLayoutEffectUnmountStarted(deletedFiber); - } - - if (shouldProfile(deletedFiber)) { - startLayoutEffectTimer(); - safelyCallDestroy( - deletedFiber, - nearestMountedAncestor, - destroy - ); - recordLayoutEffectDuration(deletedFiber); - } else { - safelyCallDestroy( - deletedFiber, - nearestMountedAncestor, - destroy - ); - } + break; + } - { - markComponentLayoutEffectUnmountStopped(); - } - } + case ClassComponent: { + if ((flags & Snapshot) !== NoFlags$1) { + if (current !== null) { + var prevProps = current.memoizedProps; + var prevState = current.memoizedState; + var instance = finishedWork.stateNode; // We could update instance props and state here, + // but instead we rely on them being set during last render. + // TODO: revisit this when we implement resuming. + + { + if ( + finishedWork.type === finishedWork.elementType && + !didWarnAboutReassigningProps + ) { + if (instance.props !== finishedWork.memoizedProps) { + error( + "Expected %s props to match memoized props before " + + "getSnapshotBeforeUpdate. " + + "This might either be because of a bug in React, or because " + + "a component reassigns its own `this.props`. " + + "Please file an issue.", + getComponentNameFromFiber(finishedWork) || "instance" + ); } - effect = effect.next; - } while (effect !== firstEffect); + if (instance.state !== finishedWork.memoizedState) { + error( + "Expected %s state to match memoized state before " + + "getSnapshotBeforeUpdate. " + + "This might either be because of a bug in React, or because " + + "a component reassigns its own `this.state`. " + + "Please file an issue.", + getComponentNameFromFiber(finishedWork) || "instance" + ); + } + } } - } - } - recursivelyTraverseDeletionEffects( - finishedRoot, - nearestMountedAncestor, - deletedFiber - ); - return; - } + var snapshot = instance.getSnapshotBeforeUpdate( + finishedWork.elementType === finishedWork.type + ? prevProps + : resolveDefaultProps(finishedWork.type, prevProps), + prevState + ); - case ClassComponent: { - if (!offscreenSubtreeWasHidden) { - safelyDetachRef(deletedFiber, nearestMountedAncestor); - var instance = deletedFiber.stateNode; + { + var didWarnSet = didWarnAboutUndefinedSnapshotBeforeUpdate; - if (typeof instance.componentWillUnmount === "function") { - safelyCallComponentWillUnmount( - deletedFiber, - nearestMountedAncestor, - instance - ); + if (snapshot === undefined && !didWarnSet.has(finishedWork.type)) { + didWarnSet.add(finishedWork.type); + + error( + "%s.getSnapshotBeforeUpdate(): A snapshot value (or null) " + + "must be returned. You have returned undefined.", + getComponentNameFromFiber(finishedWork) + ); + } + } + + instance.__reactInternalSnapshotBeforeUpdate = snapshot; } } - recursivelyTraverseDeletionEffects( - finishedRoot, - nearestMountedAncestor, - deletedFiber - ); - return; + break; } - case ScopeComponent: { - recursivelyTraverseDeletionEffects( - finishedRoot, - nearestMountedAncestor, - deletedFiber - ); - return; + case HostRoot: { + break; } - case OffscreenComponent: { - safelyDetachRef(deletedFiber, nearestMountedAncestor); + case HostComponent: + case HostHoistable: + case HostSingleton: + case HostText: + case HostPortal: + case IncompleteClassComponent: + // Nothing to do for these component types + break; - if (deletedFiber.mode & ConcurrentMode) { - // If this offscreen component is hidden, we already unmounted it. Before - // deleting the children, track that it's already unmounted so that we - // don't attempt to unmount the effects again. - // TODO: If the tree is hidden, in most cases we should be able to skip - // over the nested children entirely. An exception is we haven't yet found - // the topmost host node to delete, which we already track on the stack. - // But the other case is portals, which need to be detached no matter how - // deeply they are nested. We should use a subtree flag to track whether a - // subtree includes a nested portal. - var prevOffscreenSubtreeWasHidden = offscreenSubtreeWasHidden; - offscreenSubtreeWasHidden = - prevOffscreenSubtreeWasHidden || deletedFiber.memoizedState !== null; - recursivelyTraverseDeletionEffects( - finishedRoot, - nearestMountedAncestor, - deletedFiber - ); - offscreenSubtreeWasHidden = prevOffscreenSubtreeWasHidden; - } else { - recursivelyTraverseDeletionEffects( - finishedRoot, - nearestMountedAncestor, - deletedFiber + default: { + if ((flags & Snapshot) !== NoFlags$1) { + throw new Error( + "This unit of work tag should not have side-effects. This error is " + + "likely caused by a bug in React. Please file an issue." ); } - - break; } + } - default: { - recursivelyTraverseDeletionEffects( - finishedRoot, - nearestMountedAncestor, - deletedFiber - ); - return; - } + if ((flags & Snapshot) !== NoFlags$1) { + resetCurrentFiber(); } } -function commitSuspenseCallback(finishedWork) {} +function commitHookEffectListUnmount( + flags, + finishedWork, + nearestMountedAncestor +) { + var updateQueue = finishedWork.updateQueue; + var lastEffect = updateQueue !== null ? updateQueue.lastEffect : null; -function getRetryCache(finishedWork) { - // TODO: Unify the interface for the retry cache so we don't have to switch - // on the tag like this. - switch (finishedWork.tag) { - case SuspenseComponent: - case SuspenseListComponent: { - var retryCache = finishedWork.stateNode; + if (lastEffect !== null) { + var firstEffect = lastEffect.next; + var effect = firstEffect; - if (retryCache === null) { - retryCache = finishedWork.stateNode = new PossiblyWeakSet(); - } + do { + if ((effect.tag & flags) === flags) { + // Unmount + var destroy = effect.destroy; + effect.destroy = undefined; - return retryCache; - } + if (destroy !== undefined) { + { + if ((flags & Passive) !== NoFlags) { + markComponentPassiveEffectUnmountStarted(finishedWork); + } else if ((flags & Layout) !== NoFlags) { + markComponentLayoutEffectUnmountStarted(finishedWork); + } + } - case OffscreenComponent: { - var instance = finishedWork.stateNode; - var _retryCache = instance._retryCache; + { + if ((flags & Insertion) !== NoFlags) { + setIsRunningInsertionEffect(true); + } + } - if (_retryCache === null) { - _retryCache = instance._retryCache = new PossiblyWeakSet(); - } + safelyCallDestroy(finishedWork, nearestMountedAncestor, destroy); - return _retryCache; - } + { + if ((flags & Insertion) !== NoFlags) { + setIsRunningInsertionEffect(false); + } + } - default: { - throw new Error( - "Unexpected Suspense handler tag (" + - finishedWork.tag + - "). This is a " + - "bug in React." - ); - } + { + if ((flags & Passive) !== NoFlags) { + markComponentPassiveEffectUnmountStopped(); + } else if ((flags & Layout) !== NoFlags) { + markComponentLayoutEffectUnmountStopped(); + } + } + } + } + + effect = effect.next; + } while (effect !== firstEffect); } } -function detachOffscreenInstance(instance) { - var fiber = instance._current; +function commitHookEffectListMount(flags, finishedWork) { + var updateQueue = finishedWork.updateQueue; + var lastEffect = updateQueue !== null ? updateQueue.lastEffect : null; - if (fiber === null) { - throw new Error( - "Calling Offscreen.detach before instance handle has been set." - ); - } + if (lastEffect !== null) { + var firstEffect = lastEffect.next; + var effect = firstEffect; - if ((instance._pendingVisibility & OffscreenDetached) !== NoFlags$1) { - // The instance is already detached, this is a noop. - return; - } // TODO: There is an opportunity to optimise this by not entering commit phase - // and unmounting effects directly. + do { + if ((effect.tag & flags) === flags) { + { + if ((flags & Passive) !== NoFlags) { + markComponentPassiveEffectMountStarted(finishedWork); + } else if ((flags & Layout) !== NoFlags) { + markComponentLayoutEffectMountStarted(finishedWork); + } + } // Mount - var root = enqueueConcurrentRenderForLane(fiber, SyncLane); + var create = effect.create; - if (root !== null) { - instance._pendingVisibility |= OffscreenDetached; - scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); - } -} -function attachOffscreenInstance(instance) { - var fiber = instance._current; + { + if ((flags & Insertion) !== NoFlags) { + setIsRunningInsertionEffect(true); + } + } + + effect.destroy = create(); + + { + if ((flags & Insertion) !== NoFlags) { + setIsRunningInsertionEffect(false); + } + } - if (fiber === null) { - throw new Error( - "Calling Offscreen.detach before instance handle has been set." - ); - } + { + if ((flags & Passive) !== NoFlags) { + markComponentPassiveEffectMountStopped(); + } else if ((flags & Layout) !== NoFlags) { + markComponentLayoutEffectMountStopped(); + } + } - if ((instance._pendingVisibility & OffscreenDetached) === NoFlags$1) { - // The instance is already attached, this is a noop. - return; - } + { + var destroy = effect.destroy; - var root = enqueueConcurrentRenderForLane(fiber, SyncLane); + if (destroy !== undefined && typeof destroy !== "function") { + var hookName = void 0; - if (root !== null) { - instance._pendingVisibility &= ~OffscreenDetached; - scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); - } -} + if ((effect.tag & Layout) !== NoFlags$1) { + hookName = "useLayoutEffect"; + } else if ((effect.tag & Insertion) !== NoFlags$1) { + hookName = "useInsertionEffect"; + } else { + hookName = "useEffect"; + } -function attachSuspenseRetryListeners(finishedWork, wakeables) { - // If this boundary just timed out, then it will have a set of wakeables. - // For each wakeable, attach a listener so that when it resolves, React - // attempts to re-render the boundary in the primary (pre-timeout) state. - var retryCache = getRetryCache(finishedWork); - wakeables.forEach(function (wakeable) { - // Memoize using the boundary fiber to prevent redundant listeners. - var retry = resolveRetryWakeable.bind(null, finishedWork, wakeable); + var addendum = void 0; - if (!retryCache.has(wakeable)) { - retryCache.add(wakeable); + if (destroy === null) { + addendum = + " You returned null. If your effect does not require clean " + + "up, return undefined (or nothing)."; + } else if (typeof destroy.then === "function") { + addendum = + "\n\nIt looks like you wrote " + + hookName + + "(async () => ...) or returned a Promise. " + + "Instead, write the async function inside your effect " + + "and call it immediately:\n\n" + + hookName + + "(() => {\n" + + " async function fetchData() {\n" + + " // You can await here\n" + + " const response = await MyAPI.getData(someId);\n" + + " // ...\n" + + " }\n" + + " fetchData();\n" + + "}, [someId]); // Or [] if effect doesn't need props or state\n\n" + + "Learn more about data fetching with Hooks: https://reactjs.org/link/hooks-data-fetching"; + } else { + addendum = " You returned: " + destroy; + } - { - if (isDevToolsPresent) { - if (inProgressLanes !== null && inProgressRoot !== null) { - // If we have pending work still, associate the original updaters with it. - restorePendingUpdaters(inProgressRoot, inProgressLanes); - } else { - throw Error( - "Expected finished root and lanes to be set. This is a bug in React." + error( + "%s must not return anything besides a function, " + + "which is used for clean-up.%s", + hookName, + addendum ); } } } - wakeable.then(retry, retry); - } - }); -} // This function detects when a Suspense boundary goes from visible to hidden. -function commitMutationEffects(root, finishedWork, committedLanes) { - inProgressLanes = committedLanes; - inProgressRoot = root; - setCurrentFiber(finishedWork); - commitMutationEffectsOnFiber(finishedWork, root); - setCurrentFiber(finishedWork); - inProgressLanes = null; - inProgressRoot = null; + effect = effect.next; + } while (effect !== firstEffect); + } } -function recursivelyTraverseMutationEffects(root, parentFiber, lanes) { - // Deletions effects can be scheduled on any fiber type. They need to happen - // before the children effects hae fired. - var deletions = parentFiber.deletions; +function commitPassiveEffectDurations(finishedRoot, finishedWork) { + if (getExecutionContext() & CommitContext) { + // Only Profilers with work in their subtree will have an Update effect scheduled. + if ((finishedWork.flags & Update) !== NoFlags$1) { + switch (finishedWork.tag) { + case Profiler: { + var passiveEffectDuration = + finishedWork.stateNode.passiveEffectDuration; + var _finishedWork$memoize = finishedWork.memoizedProps, + id = _finishedWork$memoize.id, + onPostCommit = _finishedWork$memoize.onPostCommit; // This value will still reflect the previous commit phase. + // It does not get reset until the start of the next commit phase. - if (deletions !== null) { - for (var i = 0; i < deletions.length; i++) { - var childToDelete = deletions[i]; + var commitTime = getCommitTime(); + var phase = finishedWork.alternate === null ? "mount" : "update"; - try { - commitDeletionEffects(root, parentFiber, childToDelete); - } catch (error) { - captureCommitPhaseError(childToDelete, parentFiber, error); + { + if (isCurrentUpdateNested()) { + phase = "nested-update"; + } + } + + if (typeof onPostCommit === "function") { + onPostCommit(id, phase, passiveEffectDuration, commitTime); + } // Bubble times to the next nearest ancestor Profiler. + // After we process that Profiler, we'll bubble further up. + + var parentFiber = finishedWork.return; + + outer: while (parentFiber !== null) { + switch (parentFiber.tag) { + case HostRoot: + var root = parentFiber.stateNode; + root.passiveEffectDuration += passiveEffectDuration; + break outer; + + case Profiler: + var parentStateNode = parentFiber.stateNode; + parentStateNode.passiveEffectDuration += passiveEffectDuration; + break outer; + } + + parentFiber = parentFiber.return; + } + + break; + } } } } +} - var prevDebugFiber = getCurrentFiber(); - - if (parentFiber.subtreeFlags & MutationMask) { - var child = parentFiber.child; +function commitHookLayoutEffects(finishedWork, hookFlags) { + // At this point layout effects have already been destroyed (during mutation phase). + // This is done to prevent sibling component effects from interfering with each other, + // e.g. a destroy function in one component should never override a ref set + // by a create function in another component during the same commit. + if (shouldProfile(finishedWork)) { + try { + startLayoutEffectTimer(); + commitHookEffectListMount(hookFlags, finishedWork); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); + } - while (child !== null) { - setCurrentFiber(child); - commitMutationEffectsOnFiber(child, root); - child = child.sibling; + recordLayoutEffectDuration(finishedWork); + } else { + try { + commitHookEffectListMount(hookFlags, finishedWork); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); } } - - setCurrentFiber(prevDebugFiber); } -function commitMutationEffectsOnFiber(finishedWork, root, lanes) { - var current = finishedWork.alternate; - var flags = finishedWork.flags; // The effect flag should be checked *after* we refine the type of fiber, - // because the fiber tag is more specific. An exception is any flag related - // to reconciliation, because those can be set on all fiber types. - - switch (finishedWork.tag) { - case FunctionComponent: - case ForwardRef: - case MemoComponent: - case SimpleMemoComponent: { - recursivelyTraverseMutationEffects(root, finishedWork); - commitReconciliationEffects(finishedWork); +function commitClassLayoutLifecycles(finishedWork, current) { + var instance = finishedWork.stateNode; - if (flags & Update) { - try { - commitHookEffectListUnmount( - Insertion | HasEffect, - finishedWork, - finishedWork.return + if (current === null) { + // We could update instance props and state here, + // but instead we rely on them being set during last render. + // TODO: revisit this when we implement resuming. + { + if ( + finishedWork.type === finishedWork.elementType && + !didWarnAboutReassigningProps + ) { + if (instance.props !== finishedWork.memoizedProps) { + error( + "Expected %s props to match memoized props before " + + "componentDidMount. " + + "This might either be because of a bug in React, or because " + + "a component reassigns its own `this.props`. " + + "Please file an issue.", + getComponentNameFromFiber(finishedWork) || "instance" ); - commitHookEffectListMount(Insertion | HasEffect, finishedWork); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); - } // Layout effects are destroyed during the mutation phase so that all - // destroy functions for all fibers are called before any create functions. - // This prevents sibling component effects from interfering with each other, - // e.g. a destroy function in one component should never override a ref set - // by a create function in another component during the same commit. - - if (shouldProfile(finishedWork)) { - try { - startLayoutEffectTimer(); - commitHookEffectListUnmount( - Layout | HasEffect, - finishedWork, - finishedWork.return - ); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); - } + } - recordLayoutEffectDuration(finishedWork); - } else { - try { - commitHookEffectListUnmount( - Layout | HasEffect, - finishedWork, - finishedWork.return - ); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); - } + if (instance.state !== finishedWork.memoizedState) { + error( + "Expected %s state to match memoized state before " + + "componentDidMount. " + + "This might either be because of a bug in React, or because " + + "a component reassigns its own `this.state`. " + + "Please file an issue.", + getComponentNameFromFiber(finishedWork) || "instance" + ); } } - - return; } - case ClassComponent: { - recursivelyTraverseMutationEffects(root, finishedWork); - commitReconciliationEffects(finishedWork); - - if (flags & Ref) { - if (current !== null) { - safelyDetachRef(current, current.return); - } + if (shouldProfile(finishedWork)) { + try { + startLayoutEffectTimer(); + instance.componentDidMount(); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); } - if (flags & Callback && offscreenSubtreeIsHidden) { - var updateQueue = finishedWork.updateQueue; - - if (updateQueue !== null) { - deferHiddenCallbacks(updateQueue); - } + recordLayoutEffectDuration(finishedWork); + } else { + try { + instance.componentDidMount(); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); } - - return; } + } else { + var prevProps = + finishedWork.elementType === finishedWork.type + ? current.memoizedProps + : resolveDefaultProps(finishedWork.type, current.memoizedProps); + var prevState = current.memoizedState; // We could update instance props and state here, + // but instead we rely on them being set during last render. + // TODO: revisit this when we implement resuming. - case HostHoistable: - // eslint-disable-next-line-no-fallthrough - - case HostSingleton: - // eslint-disable-next-line-no-fallthrough - - case HostComponent: { - recursivelyTraverseMutationEffects(root, finishedWork); - commitReconciliationEffects(finishedWork); + { + if ( + finishedWork.type === finishedWork.elementType && + !didWarnAboutReassigningProps + ) { + if (instance.props !== finishedWork.memoizedProps) { + error( + "Expected %s props to match memoized props before " + + "componentDidUpdate. " + + "This might either be because of a bug in React, or because " + + "a component reassigns its own `this.props`. " + + "Please file an issue.", + getComponentNameFromFiber(finishedWork) || "instance" + ); + } - if (flags & Ref) { - if (current !== null) { - safelyDetachRef(current, current.return); + if (instance.state !== finishedWork.memoizedState) { + error( + "Expected %s state to match memoized state before " + + "componentDidUpdate. " + + "This might either be because of a bug in React, or because " + + "a component reassigns its own `this.state`. " + + "Please file an issue.", + getComponentNameFromFiber(finishedWork) || "instance" + ); } } - - return; } - case HostText: { - recursivelyTraverseMutationEffects(root, finishedWork); - commitReconciliationEffects(finishedWork); + if (shouldProfile(finishedWork)) { + try { + startLayoutEffectTimer(); + instance.componentDidUpdate( + prevProps, + prevState, + instance.__reactInternalSnapshotBeforeUpdate + ); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); + } - return; + recordLayoutEffectDuration(finishedWork); + } else { + try { + instance.componentDidUpdate( + prevProps, + prevState, + instance.__reactInternalSnapshotBeforeUpdate + ); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); + } } + } +} - case HostRoot: { - { - recursivelyTraverseMutationEffects(root, finishedWork); - commitReconciliationEffects(finishedWork); - } +function commitClassCallbacks(finishedWork) { + // TODO: I think this is now always non-null by the time it reaches the + // commit phase. Consider removing the type check. + var updateQueue = finishedWork.updateQueue; - if (flags & Update) { - { - var containerInfo = root.containerInfo; - var pendingChildren = root.pendingChildren; + if (updateQueue !== null) { + var instance = finishedWork.stateNode; - try { - replaceContainerChildren(containerInfo, pendingChildren); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); - } + { + if ( + finishedWork.type === finishedWork.elementType && + !didWarnAboutReassigningProps + ) { + if (instance.props !== finishedWork.memoizedProps) { + error( + "Expected %s props to match memoized props before " + + "processing the update queue. " + + "This might either be because of a bug in React, or because " + + "a component reassigns its own `this.props`. " + + "Please file an issue.", + getComponentNameFromFiber(finishedWork) || "instance" + ); + } + + if (instance.state !== finishedWork.memoizedState) { + error( + "Expected %s state to match memoized state before " + + "processing the update queue. " + + "This might either be because of a bug in React, or because " + + "a component reassigns its own `this.state`. " + + "Please file an issue.", + getComponentNameFromFiber(finishedWork) || "instance" + ); } } + } // We could update instance props and state here, + // but instead we rely on them being set during last render. + // TODO: revisit this when we implement resuming. - return; + try { + commitCallbacks(updateQueue, instance); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); } + } +} - case HostPortal: { - { - recursivelyTraverseMutationEffects(root, finishedWork); - commitReconciliationEffects(finishedWork); - } +function commitHostComponentMount(finishedWork) { + var type = finishedWork.type; + var props = finishedWork.memoizedProps; + var instance = finishedWork.stateNode; - if (flags & Update) { - { - var portal = finishedWork.stateNode; - var _containerInfo = portal.containerInfo; - var _pendingChildren = portal.pendingChildren; + try { + commitMount(instance, type, props, finishedWork); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); + } +} - try { - replaceContainerChildren(_containerInfo, _pendingChildren); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); - } +function commitProfilerUpdate(finishedWork, current) { + if (getExecutionContext() & CommitContext) { + try { + var _finishedWork$memoize2 = finishedWork.memoizedProps, + onCommit = _finishedWork$memoize2.onCommit, + onRender = _finishedWork$memoize2.onRender; + var effectDuration = finishedWork.stateNode.effectDuration; + var commitTime = getCommitTime(); + var phase = current === null ? "mount" : "update"; + + if (enableProfilerNestedUpdatePhase) { + if (isCurrentUpdateNested()) { + phase = "nested-update"; } } - return; - } + if (typeof onRender === "function") { + onRender( + finishedWork.memoizedProps.id, + phase, + finishedWork.actualDuration, + finishedWork.treeBaseDuration, + finishedWork.actualStartTime, + commitTime + ); + } - case SuspenseComponent: { - recursivelyTraverseMutationEffects(root, finishedWork); - commitReconciliationEffects(finishedWork); - var offscreenFiber = finishedWork.child; + if (enableProfilerCommitHooks) { + if (typeof onCommit === "function") { + onCommit( + finishedWork.memoizedProps.id, + phase, + effectDuration, + commitTime + ); + } // Schedule a passive effect for this Profiler to call onPostCommit hooks. + // This effect should be scheduled even if there is no onPostCommit callback for this Profiler, + // because the effect is also where times bubble to parent Profilers. - if (offscreenFiber.flags & Visibility) { - var newState = offscreenFiber.memoizedState; - var isHidden = newState !== null; + enqueuePendingPassiveProfilerEffect(finishedWork); // Propagate layout effect durations to the next nearest Profiler ancestor. + // Do not reset these values until the next render so DevTools has a chance to read them first. - if (isHidden) { - var wasHidden = - offscreenFiber.alternate !== null && - offscreenFiber.alternate.memoizedState !== null; + var parentFiber = finishedWork.return; - if (!wasHidden) { - // TODO: Move to passive phase - markCommitTimeOfFallback(); + outer: while (parentFiber !== null) { + switch (parentFiber.tag) { + case HostRoot: + var root = parentFiber.stateNode; + root.effectDuration += effectDuration; + break outer; + + case Profiler: + var parentStateNode = parentFiber.stateNode; + parentStateNode.effectDuration += effectDuration; + break outer; } + + parentFiber = parentFiber.return; } } + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); + } + } +} - if (flags & Update) { - try { - commitSuspenseCallback(finishedWork); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); - } +function commitLayoutEffectOnFiber( + finishedRoot, + current, + finishedWork, + committedLanes +) { + // When updating this function, also update reappearLayoutEffects, which does + // most of the same things when an offscreen tree goes from hidden -> visible. + var flags = finishedWork.flags; - var retryQueue = finishedWork.updateQueue; + switch (finishedWork.tag) { + case FunctionComponent: + case ForwardRef: + case SimpleMemoComponent: { + recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); - if (retryQueue !== null) { - finishedWork.updateQueue = null; - attachSuspenseRetryListeners(finishedWork, retryQueue); - } + if (flags & Update) { + commitHookLayoutEffects(finishedWork, Layout | HasEffect); } - return; + break; } - case OffscreenComponent: { - if (flags & Ref) { - if (current !== null) { - safelyDetachRef(current, current.return); - } - } - - var _newState = finishedWork.memoizedState; + case ClassComponent: { + recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); - var _isHidden = _newState !== null; + if (flags & Update) { + commitClassLayoutLifecycles(finishedWork, current); + } - var _wasHidden = current !== null && current.memoizedState !== null; + if (flags & Callback) { + commitClassCallbacks(finishedWork); + } - if (finishedWork.mode & ConcurrentMode) { - // Before committing the children, track on the stack whether this - // offscreen subtree was already hidden, so that we don't unmount the - // effects again. - var prevOffscreenSubtreeIsHidden = offscreenSubtreeIsHidden; - var prevOffscreenSubtreeWasHidden = offscreenSubtreeWasHidden; - offscreenSubtreeIsHidden = prevOffscreenSubtreeIsHidden || _isHidden; - offscreenSubtreeWasHidden = prevOffscreenSubtreeWasHidden || _wasHidden; - recursivelyTraverseMutationEffects(root, finishedWork); - offscreenSubtreeWasHidden = prevOffscreenSubtreeWasHidden; - offscreenSubtreeIsHidden = prevOffscreenSubtreeIsHidden; - } else { - recursivelyTraverseMutationEffects(root, finishedWork); + if (flags & Ref) { + safelyAttachRef(finishedWork, finishedWork.return); } - commitReconciliationEffects(finishedWork); - var offscreenInstance = finishedWork.stateNode; // TODO: Add explicit effect flag to set _current. + break; + } - offscreenInstance._current = finishedWork; // Offscreen stores pending changes to visibility in `_pendingVisibility`. This is - // to support batching of `attach` and `detach` calls. + case HostRoot: { + recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); - offscreenInstance._visibility &= ~OffscreenDetached; - offscreenInstance._visibility |= - offscreenInstance._pendingVisibility & OffscreenDetached; + if (flags & Callback) { + // TODO: I think this is now always non-null by the time it reaches the + // commit phase. Consider removing the type check. + var updateQueue = finishedWork.updateQueue; - if (flags & Visibility) { - // Track the current state on the Offscreen instance so we can - // read it during an event - if (_isHidden) { - offscreenInstance._visibility &= ~OffscreenVisible; - } else { - offscreenInstance._visibility |= OffscreenVisible; - } + if (updateQueue !== null) { + var instance = null; - if (_isHidden) { - var isUpdate = current !== null; - var wasHiddenByAncestorOffscreen = - offscreenSubtreeIsHidden || offscreenSubtreeWasHidden; // Only trigger disapper layout effects if: - // - This is an update, not first mount. - // - This Offscreen was not hidden before. - // - Ancestor Offscreen was not hidden in previous commit. + if (finishedWork.child !== null) { + switch (finishedWork.child.tag) { + case HostSingleton: + case HostComponent: + instance = getPublicInstance(finishedWork.child.stateNode); + break; - if (isUpdate && !_wasHidden && !wasHiddenByAncestorOffscreen) { - if ((finishedWork.mode & ConcurrentMode) !== NoMode) { - // Disappear the layout effects of all the children - recursivelyTraverseDisappearLayoutEffects(finishedWork); + case ClassComponent: + instance = finishedWork.child.stateNode; + break; } } - } // Offscreen with manual mode manages visibility manually. - } // TODO: Move to passive phase - - if (flags & Update) { - var offscreenQueue = finishedWork.updateQueue; - - if (offscreenQueue !== null) { - var _retryQueue = offscreenQueue.retryQueue; - if (_retryQueue !== null) { - offscreenQueue.retryQueue = null; - attachSuspenseRetryListeners(finishedWork, _retryQueue); + try { + commitCallbacks(updateQueue, instance); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); } } } - return; + break; } - case SuspenseListComponent: { - recursivelyTraverseMutationEffects(root, finishedWork); - commitReconciliationEffects(finishedWork); + case HostHoistable: + // eslint-disable-next-line-no-fallthrough - if (flags & Update) { - var _retryQueue2 = finishedWork.updateQueue; + case HostSingleton: + case HostComponent: { + recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); // Renderers may schedule work to be done after host components are mounted + // (eg DOM renderer may schedule auto-focus for inputs and form controls). + // These effects should only be committed when components are first mounted, + // aka when there is no current/alternate. - if (_retryQueue2 !== null) { - finishedWork.updateQueue = null; - attachSuspenseRetryListeners(finishedWork, _retryQueue2); - } + if (current === null && flags & Update) { + commitHostComponentMount(finishedWork); } - return; + if (flags & Ref) { + safelyAttachRef(finishedWork, finishedWork.return); + } + + break; } - case ScopeComponent: { - return; + case Profiler: { + recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); // TODO: Should this fire inside an offscreen tree? Or should it wait to + // fire when the tree becomes visible again. + + if (flags & Update) { + commitProfilerUpdate(finishedWork, current); + } + + break; } - default: { - recursivelyTraverseMutationEffects(root, finishedWork); - commitReconciliationEffects(finishedWork); - return; + case SuspenseComponent: { + recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); + + break; } - } -} -function commitReconciliationEffects(finishedWork) { - // Placement effects (insertions, reorders) can be scheduled on any fiber - // type. They needs to happen after the children effects have fired, but - // before the effects on this fiber have fired. - var flags = finishedWork.flags; + case OffscreenComponent: { + var isModernRoot = (finishedWork.mode & ConcurrentMode) !== NoMode; - if (flags & Placement) { - try { - commitPlacement(finishedWork); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); - } // Clear the "placement" from effect tag so that we know that this is - // inserted, before any life-cycles like componentDidMount gets called. - // TODO: findDOMNode doesn't rely on this any more but isMounted does - // and isMounted is deprecated anyway so we should be able to kill this. + if (isModernRoot) { + var isHidden = finishedWork.memoizedState !== null; + var newOffscreenSubtreeIsHidden = isHidden || offscreenSubtreeIsHidden; - finishedWork.flags &= ~Placement; - } + if (newOffscreenSubtreeIsHidden); + else { + // The Offscreen tree is visible. + var wasHidden = current !== null && current.memoizedState !== null; + var newOffscreenSubtreeWasHidden = + wasHidden || offscreenSubtreeWasHidden; + var prevOffscreenSubtreeIsHidden = offscreenSubtreeIsHidden; + var prevOffscreenSubtreeWasHidden = offscreenSubtreeWasHidden; + offscreenSubtreeIsHidden = newOffscreenSubtreeIsHidden; + offscreenSubtreeWasHidden = newOffscreenSubtreeWasHidden; - if (flags & Hydrating) { - finishedWork.flags &= ~Hydrating; - } -} + if (offscreenSubtreeWasHidden && !prevOffscreenSubtreeWasHidden) { + // This is the root of a reappearing boundary. As we continue + // traversing the layout effects, we must also re-mount layout + // effects that were unmounted when the Offscreen subtree was + // hidden. So this is a superset of the normal commitLayoutEffects. + var includeWorkInProgressEffects = + (finishedWork.subtreeFlags & LayoutMask) !== NoFlags$1; + recursivelyTraverseReappearLayoutEffects( + finishedRoot, + finishedWork, + includeWorkInProgressEffects + ); + } else { + recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); + } -function commitLayoutEffects(finishedWork, root, committedLanes) { - inProgressLanes = committedLanes; - inProgressRoot = root; - var current = finishedWork.alternate; - commitLayoutEffectOnFiber(root, current, finishedWork); - inProgressLanes = null; - inProgressRoot = null; + offscreenSubtreeIsHidden = prevOffscreenSubtreeIsHidden; + offscreenSubtreeWasHidden = prevOffscreenSubtreeWasHidden; + } + } else { + recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); + } + + if (flags & Ref) { + var props = finishedWork.memoizedProps; + + if (props.mode === "manual") { + safelyAttachRef(finishedWork, finishedWork.return); + } else { + safelyDetachRef(finishedWork, finishedWork.return); + } + } + + break; + } + + default: { + recursivelyTraverseLayoutEffects(finishedRoot, finishedWork); + break; + } + } } -function recursivelyTraverseLayoutEffects(root, parentFiber, lanes) { - var prevDebugFiber = getCurrentFiber(); +function commitAttachRef(finishedWork) { + var ref = finishedWork.ref; - if (parentFiber.subtreeFlags & LayoutMask) { - var child = parentFiber.child; + if (ref !== null) { + var instance = finishedWork.stateNode; + var instanceToUse; - while (child !== null) { - setCurrentFiber(child); - var current = child.alternate; - commitLayoutEffectOnFiber(root, current, child); - child = child.sibling; - } - } + switch (finishedWork.tag) { + case HostHoistable: + case HostSingleton: + case HostComponent: + instanceToUse = getPublicInstance(instance); + break; - setCurrentFiber(prevDebugFiber); -} + default: + instanceToUse = instance; + } // Moved outside to ensure DCE works with this flag -function disappearLayoutEffects(finishedWork) { - switch (finishedWork.tag) { - case FunctionComponent: - case ForwardRef: - case MemoComponent: - case SimpleMemoComponent: { - // TODO (Offscreen) Check: flags & LayoutStatic + if (typeof ref === "function") { if (shouldProfile(finishedWork)) { try { startLayoutEffectTimer(); - commitHookEffectListUnmount( - Layout, - finishedWork, - finishedWork.return - ); + finishedWork.refCleanup = ref(instanceToUse); } finally { recordLayoutEffectDuration(finishedWork); } } else { - commitHookEffectListUnmount(Layout, finishedWork, finishedWork.return); + finishedWork.refCleanup = ref(instanceToUse); } + } else { + { + if (!ref.hasOwnProperty("current")) { + error( + "Unexpected ref object provided for %s. " + + "Use either a ref-setter function or React.createRef().", + getComponentNameFromFiber(finishedWork) + ); + } + } // $FlowFixMe unable to narrow type to the non-function case - recursivelyTraverseDisappearLayoutEffects(finishedWork); - break; + ref.current = instanceToUse; } + } +} - case ClassComponent: { - // TODO (Offscreen) Check: flags & RefStatic - safelyDetachRef(finishedWork, finishedWork.return); - var instance = finishedWork.stateNode; +function detachFiberMutation(fiber) { + // Cut off the return pointer to disconnect it from the tree. + // This enables us to detect and warn against state updates on an unmounted component. + // It also prevents events from bubbling from within disconnected components. + // + // Ideally, we should also clear the child pointer of the parent alternate to let this + // get GC:ed but we don't know which for sure which parent is the current + // one so we'll settle for GC:ing the subtree of this child. + // This child itself will be GC:ed when the parent updates the next time. + // + // Note that we can't clear child or sibling pointers yet. + // They're needed for passive effects and for findDOMNode. + // We defer those fields, and all other cleanup, to the passive phase (see detachFiberAfterEffects). + // + // Don't reset the alternate yet, either. We need that so we can detach the + // alternate's fields in the passive phase. Clearing the return pointer is + // sufficient for findDOMNode semantics. + var alternate = fiber.alternate; - if (typeof instance.componentWillUnmount === "function") { - safelyCallComponentWillUnmount( - finishedWork, - finishedWork.return, - instance - ); - } + if (alternate !== null) { + alternate.return = null; + } - recursivelyTraverseDisappearLayoutEffects(finishedWork); - break; - } + fiber.return = null; +} - case HostHoistable: - case HostSingleton: - case HostComponent: { - // TODO (Offscreen) Check: flags & RefStatic - safelyDetachRef(finishedWork, finishedWork.return); - recursivelyTraverseDisappearLayoutEffects(finishedWork); - break; - } +function detachFiberAfterEffects(fiber) { + var alternate = fiber.alternate; - case OffscreenComponent: { - // TODO (Offscreen) Check: flags & RefStatic - safelyDetachRef(finishedWork, finishedWork.return); - var isHidden = finishedWork.memoizedState !== null; + if (alternate !== null) { + fiber.alternate = null; + detachFiberAfterEffects(alternate); + } // Clear cyclical Fiber fields. This level alone is designed to roughly + // approximate the planned Fiber refactor. In that world, `setState` will be + // bound to a special "instance" object instead of a Fiber. The Instance + // object will not have any of these fields. It will only be connected to + // the fiber tree via a single link at the root. So if this level alone is + // sufficient to fix memory issues, that bodes well for our plans. - if (isHidden); - else { - recursivelyTraverseDisappearLayoutEffects(finishedWork); - } + fiber.child = null; + fiber.deletions = null; + fiber.sibling = null; // The `stateNode` is cyclical because on host nodes it points to the host - break; - } + fiber.stateNode = null; - default: { - recursivelyTraverseDisappearLayoutEffects(finishedWork); - break; - } + { + fiber._debugOwner = null; + } // Theoretically, nothing in here should be necessary, because we already + // disconnected the fiber from the tree. So even if something leaks this + // particular fiber, it won't leak anything else. + + fiber.return = null; + fiber.dependencies = null; + fiber.memoizedProps = null; + fiber.memoizedState = null; + fiber.pendingProps = null; + fiber.stateNode = null; // TODO: Move to `commitPassiveUnmountInsideDeletedTreeOnFiber` instead. + + fiber.updateQueue = null; +} + +function emptyPortalContainer(current) { + var portal = current.stateNode; + var containerInfo = portal.containerInfo; + createContainerChildSet(containerInfo); +} + +function commitPlacement(finishedWork) { + { + return; } } -function recursivelyTraverseDisappearLayoutEffects(parentFiber) { - // TODO (Offscreen) Check: flags & (RefStatic | LayoutStatic) - var child = parentFiber.child; +function commitDeletionEffects(root, returnFiber, deletedFiber) { + { + // Detach refs and call componentWillUnmount() on the whole subtree. + commitDeletionEffectsOnFiber(root, returnFiber, deletedFiber); + } + + detachFiberMutation(deletedFiber); +} + +function recursivelyTraverseDeletionEffects( + finishedRoot, + nearestMountedAncestor, + parent +) { + // TODO: Use a static flag to skip trees that don't have unmount effects + var child = parent.child; while (child !== null) { - disappearLayoutEffects(child); + commitDeletionEffectsOnFiber(finishedRoot, nearestMountedAncestor, child); child = child.sibling; } } -function reappearLayoutEffects( +function commitDeletionEffectsOnFiber( finishedRoot, - current, - finishedWork, // This function visits both newly finished work and nodes that were re-used - // from a previously committed tree. We cannot check non-static flags if the - // node was reused. - includeWorkInProgressEffects + nearestMountedAncestor, + deletedFiber ) { - // Turn on layout effects in a tree that previously disappeared. - var flags = finishedWork.flags; + onCommitUnmount(deletedFiber); // The cases in this outer switch modify the stack before they traverse + // into their subtree. There are simpler cases in the inner switch + // that don't modify the stack. - switch (finishedWork.tag) { - case FunctionComponent: - case ForwardRef: - case SimpleMemoComponent: { - recursivelyTraverseReappearLayoutEffects( - finishedRoot, - finishedWork, - includeWorkInProgressEffects - ); // TODO: Check flags & LayoutStatic + switch (deletedFiber.tag) { + case HostHoistable: + // eslint-disable-next-line no-fallthrough - commitHookLayoutEffects(finishedWork, Layout); - break; + case HostSingleton: + // eslint-disable-next-line no-fallthrough + + case HostComponent: { + if (!offscreenSubtreeWasHidden) { + safelyDetachRef(deletedFiber, nearestMountedAncestor); + } // Intentional fallthrough to next branch } + // eslint-disable-next-line-no-fallthrough - case ClassComponent: { - recursivelyTraverseReappearLayoutEffects( - finishedRoot, - finishedWork, - includeWorkInProgressEffects - ); // TODO: Check for LayoutStatic flag + case HostText: { + // We only need to remove the nearest host child. Set the host parent + // to `null` on the stack to indicate that nested children don't + // need to be removed. + { + recursivelyTraverseDeletionEffects( + finishedRoot, + nearestMountedAncestor, + deletedFiber + ); + } - var instance = finishedWork.stateNode; + return; + } + + case DehydratedFragment: { + return; + } + + case HostPortal: { + { + emptyPortalContainer(deletedFiber); + recursivelyTraverseDeletionEffects( + finishedRoot, + nearestMountedAncestor, + deletedFiber + ); + } + + return; + } + + case FunctionComponent: + case ForwardRef: + case MemoComponent: + case SimpleMemoComponent: { + if (!offscreenSubtreeWasHidden) { + var updateQueue = deletedFiber.updateQueue; - if (typeof instance.componentDidMount === "function") { - try { - instance.componentDidMount(); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); - } - } // Commit any callbacks that would have fired while the component - // was hidden. + if (updateQueue !== null) { + var lastEffect = updateQueue.lastEffect; - var updateQueue = finishedWork.updateQueue; + if (lastEffect !== null) { + var firstEffect = lastEffect.next; + var effect = firstEffect; - if (updateQueue !== null) { - commitHiddenCallbacks(updateQueue, instance); - } // If this is newly finished work, check for setState callbacks + do { + var _effect = effect, + destroy = _effect.destroy, + tag = _effect.tag; - if (includeWorkInProgressEffects && flags & Callback) { - commitClassCallbacks(finishedWork); - } // TODO: Check flags & RefStatic + if (destroy !== undefined) { + if ((tag & Insertion) !== NoFlags) { + safelyCallDestroy( + deletedFiber, + nearestMountedAncestor, + destroy + ); + } else if ((tag & Layout) !== NoFlags) { + { + markComponentLayoutEffectUnmountStarted(deletedFiber); + } - safelyAttachRef(finishedWork, finishedWork.return); - break; - } - // Unlike commitLayoutEffectsOnFiber, we don't need to handle HostRoot - // because this function only visits nodes that are inside an - // Offscreen fiber. - // case HostRoot: { - // ... - // } + if (shouldProfile(deletedFiber)) { + startLayoutEffectTimer(); + safelyCallDestroy( + deletedFiber, + nearestMountedAncestor, + destroy + ); + recordLayoutEffectDuration(deletedFiber); + } else { + safelyCallDestroy( + deletedFiber, + nearestMountedAncestor, + destroy + ); + } - case HostHoistable: - case HostSingleton: - case HostComponent: { - recursivelyTraverseReappearLayoutEffects( - finishedRoot, - finishedWork, - includeWorkInProgressEffects - ); // Renderers may schedule work to be done after host components are mounted - // (eg DOM renderer may schedule auto-focus for inputs and form controls). - // These effects should only be committed when components are first mounted, - // aka when there is no current/alternate. + { + markComponentLayoutEffectUnmountStopped(); + } + } + } - if (includeWorkInProgressEffects && current === null && flags & Update) { - commitHostComponentMount(finishedWork); - } // TODO: Check flags & Ref + effect = effect.next; + } while (effect !== firstEffect); + } + } + } - safelyAttachRef(finishedWork, finishedWork.return); - break; + recursivelyTraverseDeletionEffects( + finishedRoot, + nearestMountedAncestor, + deletedFiber + ); + return; } - case Profiler: { - recursivelyTraverseReappearLayoutEffects( - finishedRoot, - finishedWork, - includeWorkInProgressEffects - ); // TODO: Figure out how Profiler updates should work with Offscreen + case ClassComponent: { + if (!offscreenSubtreeWasHidden) { + safelyDetachRef(deletedFiber, nearestMountedAncestor); + var instance = deletedFiber.stateNode; - if (includeWorkInProgressEffects && flags & Update) { - commitProfilerUpdate(finishedWork, current); + if (typeof instance.componentWillUnmount === "function") { + safelyCallComponentWillUnmount( + deletedFiber, + nearestMountedAncestor, + instance + ); + } } - break; + recursivelyTraverseDeletionEffects( + finishedRoot, + nearestMountedAncestor, + deletedFiber + ); + return; } - case SuspenseComponent: { - recursivelyTraverseReappearLayoutEffects( + case ScopeComponent: { + recursivelyTraverseDeletionEffects( finishedRoot, - finishedWork, - includeWorkInProgressEffects - ); // TODO: Figure out how Suspense hydration callbacks should work - - break; + nearestMountedAncestor, + deletedFiber + ); + return; } case OffscreenComponent: { - var offscreenState = finishedWork.memoizedState; - var isHidden = offscreenState !== null; + safelyDetachRef(deletedFiber, nearestMountedAncestor); - if (isHidden); - else { - recursivelyTraverseReappearLayoutEffects( + if (deletedFiber.mode & ConcurrentMode) { + // If this offscreen component is hidden, we already unmounted it. Before + // deleting the children, track that it's already unmounted so that we + // don't attempt to unmount the effects again. + // TODO: If the tree is hidden, in most cases we should be able to skip + // over the nested children entirely. An exception is we haven't yet found + // the topmost host node to delete, which we already track on the stack. + // But the other case is portals, which need to be detached no matter how + // deeply they are nested. We should use a subtree flag to track whether a + // subtree includes a nested portal. + var prevOffscreenSubtreeWasHidden = offscreenSubtreeWasHidden; + offscreenSubtreeWasHidden = + prevOffscreenSubtreeWasHidden || deletedFiber.memoizedState !== null; + recursivelyTraverseDeletionEffects( finishedRoot, - finishedWork, - includeWorkInProgressEffects + nearestMountedAncestor, + deletedFiber ); - } // TODO: Check flags & Ref + offscreenSubtreeWasHidden = prevOffscreenSubtreeWasHidden; + } else { + recursivelyTraverseDeletionEffects( + finishedRoot, + nearestMountedAncestor, + deletedFiber + ); + } - safelyAttachRef(finishedWork, finishedWork.return); break; } default: { - recursivelyTraverseReappearLayoutEffects( + recursivelyTraverseDeletionEffects( finishedRoot, - finishedWork, - includeWorkInProgressEffects + nearestMountedAncestor, + deletedFiber ); - break; - } - } -} - -function recursivelyTraverseReappearLayoutEffects( - finishedRoot, - parentFiber, - includeWorkInProgressEffects -) { - // This function visits both newly finished work and nodes that were re-used - // from a previously committed tree. We cannot check non-static flags if the - // node was reused. - var childShouldIncludeWorkInProgressEffects = - includeWorkInProgressEffects && - (parentFiber.subtreeFlags & LayoutMask) !== NoFlags$1; // TODO (Offscreen) Check: flags & (RefStatic | LayoutStatic) - - var prevDebugFiber = getCurrentFiber(); - var child = parentFiber.child; - - while (child !== null) { - var current = child.alternate; - reappearLayoutEffects( - finishedRoot, - current, - child, - childShouldIncludeWorkInProgressEffects - ); - child = child.sibling; - } - - setCurrentFiber(prevDebugFiber); -} - -function commitHookPassiveMountEffects(finishedWork, hookFlags) { - if (shouldProfile(finishedWork)) { - startPassiveEffectTimer(); - - try { - commitHookEffectListMount(hookFlags, finishedWork); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); - } - - recordPassiveEffectDuration(finishedWork); - } else { - try { - commitHookEffectListMount(hookFlags, finishedWork); - } catch (error) { - captureCommitPhaseError(finishedWork, finishedWork.return, error); - } - } -} - -function commitPassiveMountEffects( - root, - finishedWork, - committedLanes, - committedTransitions -) { - setCurrentFiber(finishedWork); - commitPassiveMountOnFiber(root, finishedWork); - resetCurrentFiber(); -} - -function recursivelyTraversePassiveMountEffects( - root, - parentFiber, - committedLanes, - committedTransitions -) { - var prevDebugFiber = getCurrentFiber(); - - if (parentFiber.subtreeFlags & PassiveMask) { - var child = parentFiber.child; - - while (child !== null) { - setCurrentFiber(child); - commitPassiveMountOnFiber(root, child); - child = child.sibling; + return; } } - - setCurrentFiber(prevDebugFiber); } -function commitPassiveMountOnFiber( - finishedRoot, - finishedWork, - committedLanes, - committedTransitions -) { - // When updating this function, also update reconnectPassiveEffects, which does - // most of the same things when an offscreen tree goes from hidden -> visible, - // or when toggling effects inside a hidden tree. - var flags = finishedWork.flags; +function commitSuspenseCallback(finishedWork) {} +function getRetryCache(finishedWork) { + // TODO: Unify the interface for the retry cache so we don't have to switch + // on the tag like this. switch (finishedWork.tag) { - case FunctionComponent: - case ForwardRef: - case SimpleMemoComponent: { - recursivelyTraversePassiveMountEffects(finishedRoot, finishedWork); + case SuspenseComponent: + case SuspenseListComponent: { + var retryCache = finishedWork.stateNode; - if (flags & Passive$1) { - commitHookPassiveMountEffects(finishedWork, Passive | HasEffect); + if (retryCache === null) { + retryCache = finishedWork.stateNode = new PossiblyWeakSet(); } - break; + return retryCache; } - case HostRoot: { - recursivelyTraversePassiveMountEffects(finishedRoot, finishedWork); - - break; - } + case OffscreenComponent: { + var instance = finishedWork.stateNode; + var _retryCache = instance._retryCache; - case LegacyHiddenComponent: { - { - recursivelyTraversePassiveMountEffects(finishedRoot, finishedWork); + if (_retryCache === null) { + _retryCache = instance._retryCache = new PossiblyWeakSet(); } - break; + return _retryCache; } - case OffscreenComponent: { - // TODO: Pass `current` as argument to this function - var _instance3 = finishedWork.stateNode; - var nextState = finishedWork.memoizedState; - var isHidden = nextState !== null; + default: { + throw new Error( + "Unexpected Suspense handler tag (" + + finishedWork.tag + + "). This is a " + + "bug in React." + ); + } + } +} - if (isHidden) { - if (_instance3._visibility & OffscreenPassiveEffectsConnected) { - // The effects are currently connected. Update them. - recursivelyTraversePassiveMountEffects(finishedRoot, finishedWork); - } else { - if (finishedWork.mode & ConcurrentMode); - else { - // Legacy Mode: Fire the effects even if the tree is hidden. - _instance3._visibility |= OffscreenPassiveEffectsConnected; - recursivelyTraversePassiveMountEffects(finishedRoot, finishedWork); +function detachOffscreenInstance(instance) { + var fiber = instance._current; + + if (fiber === null) { + throw new Error( + "Calling Offscreen.detach before instance handle has been set." + ); + } + + if ((instance._pendingVisibility & OffscreenDetached) !== NoFlags$1) { + // The instance is already detached, this is a noop. + return; + } // TODO: There is an opportunity to optimise this by not entering commit phase + // and unmounting effects directly. + + var root = enqueueConcurrentRenderForLane(fiber, SyncLane); + + if (root !== null) { + instance._pendingVisibility |= OffscreenDetached; + scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); + } +} +function attachOffscreenInstance(instance) { + var fiber = instance._current; + + if (fiber === null) { + throw new Error( + "Calling Offscreen.detach before instance handle has been set." + ); + } + + if ((instance._pendingVisibility & OffscreenDetached) === NoFlags$1) { + // The instance is already attached, this is a noop. + return; + } + + var root = enqueueConcurrentRenderForLane(fiber, SyncLane); + + if (root !== null) { + instance._pendingVisibility &= ~OffscreenDetached; + scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); + } +} + +function attachSuspenseRetryListeners(finishedWork, wakeables) { + // If this boundary just timed out, then it will have a set of wakeables. + // For each wakeable, attach a listener so that when it resolves, React + // attempts to re-render the boundary in the primary (pre-timeout) state. + var retryCache = getRetryCache(finishedWork); + wakeables.forEach(function (wakeable) { + // Memoize using the boundary fiber to prevent redundant listeners. + var retry = resolveRetryWakeable.bind(null, finishedWork, wakeable); + + if (!retryCache.has(wakeable)) { + retryCache.add(wakeable); + + { + if (isDevToolsPresent) { + if (inProgressLanes !== null && inProgressRoot !== null) { + // If we have pending work still, associate the original updaters with it. + restorePendingUpdaters(inProgressRoot, inProgressLanes); + } else { + throw Error( + "Expected finished root and lanes to be set. This is a bug in React." + ); } } - } else { - // Tree is visible - if (_instance3._visibility & OffscreenPassiveEffectsConnected) { - // The effects are currently connected. Update them. - recursivelyTraversePassiveMountEffects(finishedRoot, finishedWork); - } else { - // The effects are currently disconnected. Reconnect them, while also - // firing effects inside newly mounted trees. This also applies to - // the initial render. - _instance3._visibility |= OffscreenPassiveEffectsConnected; - recursivelyTraverseReconnectPassiveEffects( - finishedRoot, - finishedWork - ); - } } - break; + wakeable.then(retry, retry); } + }); +} // This function detects when a Suspense boundary goes from visible to hidden. +function commitMutationEffects(root, finishedWork, committedLanes) { + inProgressLanes = committedLanes; + inProgressRoot = root; + setCurrentFiber(finishedWork); + commitMutationEffectsOnFiber(finishedWork, root); + setCurrentFiber(finishedWork); + inProgressLanes = null; + inProgressRoot = null; +} - case CacheComponent: { - recursivelyTraversePassiveMountEffects(finishedRoot, finishedWork); - - break; - } +function recursivelyTraverseMutationEffects(root, parentFiber, lanes) { + // Deletions effects can be scheduled on any fiber type. They need to happen + // before the children effects hae fired. + var deletions = parentFiber.deletions; - case TracingMarkerComponent: - // eslint-disable-next-line-no-fallthrough + if (deletions !== null) { + for (var i = 0; i < deletions.length; i++) { + var childToDelete = deletions[i]; - default: { - recursivelyTraversePassiveMountEffects(finishedRoot, finishedWork); - break; + try { + commitDeletionEffects(root, parentFiber, childToDelete); + } catch (error) { + captureCommitPhaseError(childToDelete, parentFiber, error); + } } } -} -function recursivelyTraverseReconnectPassiveEffects( - finishedRoot, - parentFiber, - committedLanes, - committedTransitions, - includeWorkInProgressEffects -) { var prevDebugFiber = getCurrentFiber(); - var child = parentFiber.child; - while (child !== null) { - reconnectPassiveEffects(finishedRoot, child); - child = child.sibling; + if (parentFiber.subtreeFlags & MutationMask) { + var child = parentFiber.child; + + while (child !== null) { + setCurrentFiber(child); + commitMutationEffectsOnFiber(child, root); + child = child.sibling; + } } setCurrentFiber(prevDebugFiber); } -function reconnectPassiveEffects( - finishedRoot, - finishedWork, - committedLanes, - committedTransitions, // This function visits both newly finished work and nodes that were re-used - // from a previously committed tree. We cannot check non-static flags if the - // node was reused. - includeWorkInProgressEffects -) { +function commitMutationEffectsOnFiber(finishedWork, root, lanes) { + var current = finishedWork.alternate; + var flags = finishedWork.flags; // The effect flag should be checked *after* we refine the type of fiber, + // because the fiber tag is more specific. An exception is any flag related + // to reconciliation, because those can be set on all fiber types. + switch (finishedWork.tag) { case FunctionComponent: case ForwardRef: + case MemoComponent: case SimpleMemoComponent: { - recursivelyTraverseReconnectPassiveEffects(finishedRoot, finishedWork); // TODO: Check for PassiveStatic flag + recursivelyTraverseMutationEffects(root, finishedWork); + commitReconciliationEffects(finishedWork); - commitHookPassiveMountEffects(finishedWork, Passive); - break; - } - // Unlike commitPassiveMountOnFiber, we don't need to handle HostRoot - // because this function only visits nodes that are inside an - // Offscreen fiber. - // case HostRoot: { - // ... - // } + if (flags & Update) { + try { + commitHookEffectListUnmount( + Insertion | HasEffect, + finishedWork, + finishedWork.return + ); + commitHookEffectListMount(Insertion | HasEffect, finishedWork); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); + } // Layout effects are destroyed during the mutation phase so that all + // destroy functions for all fibers are called before any create functions. + // This prevents sibling component effects from interfering with each other, + // e.g. a destroy function in one component should never override a ref set + // by a create function in another component during the same commit. + + if (shouldProfile(finishedWork)) { + try { + startLayoutEffectTimer(); + commitHookEffectListUnmount( + Layout | HasEffect, + finishedWork, + finishedWork.return + ); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); + } - case LegacyHiddenComponent: { - { - recursivelyTraverseReconnectPassiveEffects(finishedRoot, finishedWork); + recordLayoutEffectDuration(finishedWork); + } else { + try { + commitHookEffectListUnmount( + Layout | HasEffect, + finishedWork, + finishedWork.return + ); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); + } + } } - break; + return; } - case OffscreenComponent: { - var _instance4 = finishedWork.stateNode; - var nextState = finishedWork.memoizedState; - var isHidden = nextState !== null; + case ClassComponent: { + recursivelyTraverseMutationEffects(root, finishedWork); + commitReconciliationEffects(finishedWork); - if (isHidden) { - if (_instance4._visibility & OffscreenPassiveEffectsConnected) { - // The effects are currently connected. Update them. - recursivelyTraverseReconnectPassiveEffects( - finishedRoot, - finishedWork - ); - } else { - if (finishedWork.mode & ConcurrentMode); - else { - // Legacy Mode: Fire the effects even if the tree is hidden. - _instance4._visibility |= OffscreenPassiveEffectsConnected; - recursivelyTraverseReconnectPassiveEffects( - finishedRoot, - finishedWork - ); - } + if (flags & Ref) { + if (current !== null) { + safelyDetachRef(current, current.return); } - } else { - // Tree is visible - // Since we're already inside a reconnecting tree, it doesn't matter - // whether the effects are currently connected. In either case, we'll - // continue traversing the tree and firing all the effects. - // - // We do need to set the "connected" flag on the instance, though. - _instance4._visibility |= OffscreenPassiveEffectsConnected; - recursivelyTraverseReconnectPassiveEffects(finishedRoot, finishedWork); } - break; - } + if (flags & Callback && offscreenSubtreeIsHidden) { + var updateQueue = finishedWork.updateQueue; - case CacheComponent: { - recursivelyTraverseReconnectPassiveEffects(finishedRoot, finishedWork); + if (updateQueue !== null) { + deferHiddenCallbacks(updateQueue); + } + } - break; + return; } - case TracingMarkerComponent: + case HostHoistable: // eslint-disable-next-line-no-fallthrough - default: { - recursivelyTraverseReconnectPassiveEffects(finishedRoot, finishedWork); - break; - } - } -} - -function commitPassiveUnmountEffects(finishedWork) { - setCurrentFiber(finishedWork); - commitPassiveUnmountOnFiber(finishedWork); - resetCurrentFiber(); -} + case HostSingleton: + // eslint-disable-next-line-no-fallthrough -function detachAlternateSiblings(parentFiber) { - // A fiber was deleted from this parent fiber, but it's still part of the - // previous (alternate) parent fiber's list of children. Because children - // are a linked list, an earlier sibling that's still alive will be - // connected to the deleted fiber via its `alternate`: - // - // live fiber --alternate--> previous live fiber --sibling--> deleted - // fiber - // - // We can't disconnect `alternate` on nodes that haven't been deleted yet, - // but we can disconnect the `sibling` and `child` pointers. - var previousFiber = parentFiber.alternate; + case HostComponent: { + recursivelyTraverseMutationEffects(root, finishedWork); + commitReconciliationEffects(finishedWork); - if (previousFiber !== null) { - var detachedChild = previousFiber.child; + if (flags & Ref) { + if (current !== null) { + safelyDetachRef(current, current.return); + } + } - if (detachedChild !== null) { - previousFiber.child = null; + return; + } - do { - // $FlowFixMe[incompatible-use] found when upgrading Flow - var detachedSibling = detachedChild.sibling; // $FlowFixMe[incompatible-use] found when upgrading Flow + case HostText: { + recursivelyTraverseMutationEffects(root, finishedWork); + commitReconciliationEffects(finishedWork); - detachedChild.sibling = null; - detachedChild = detachedSibling; - } while (detachedChild !== null); + return; } - } -} - -function commitHookPassiveUnmountEffects( - finishedWork, - nearestMountedAncestor, - hookFlags -) { - if (shouldProfile(finishedWork)) { - startPassiveEffectTimer(); - commitHookEffectListUnmount( - hookFlags, - finishedWork, - nearestMountedAncestor - ); - recordPassiveEffectDuration(finishedWork); - } else { - commitHookEffectListUnmount( - hookFlags, - finishedWork, - nearestMountedAncestor - ); - } -} -function recursivelyTraversePassiveUnmountEffects(parentFiber) { - // Deletions effects can be scheduled on any fiber type. They need to happen - // before the children effects have fired. - var deletions = parentFiber.deletions; + case HostRoot: { + { + recursivelyTraverseMutationEffects(root, finishedWork); + commitReconciliationEffects(finishedWork); + } - if ((parentFiber.flags & ChildDeletion) !== NoFlags$1) { - if (deletions !== null) { - for (var i = 0; i < deletions.length; i++) { - var childToDelete = deletions[i]; // TODO: Convert this to use recursion + if (flags & Update) { + { + var containerInfo = root.containerInfo; + var pendingChildren = root.pendingChildren; - nextEffect = childToDelete; - commitPassiveUnmountEffectsInsideOfDeletedTree_begin( - childToDelete, - parentFiber - ); + try { + replaceContainerChildren(containerInfo, pendingChildren); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); + } + } } + + return; } - detachAlternateSiblings(parentFiber); - } + case HostPortal: { + { + recursivelyTraverseMutationEffects(root, finishedWork); + commitReconciliationEffects(finishedWork); + } - var prevDebugFiber = getCurrentFiber(); // TODO: Split PassiveMask into separate masks for mount and unmount? + if (flags & Update) { + { + var portal = finishedWork.stateNode; + var _containerInfo = portal.containerInfo; + var _pendingChildren = portal.pendingChildren; - if (parentFiber.subtreeFlags & PassiveMask) { - var child = parentFiber.child; + try { + replaceContainerChildren(_containerInfo, _pendingChildren); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); + } + } + } - while (child !== null) { - setCurrentFiber(child); - commitPassiveUnmountOnFiber(child); - child = child.sibling; + return; } - } - - setCurrentFiber(prevDebugFiber); -} -function commitPassiveUnmountOnFiber(finishedWork) { - switch (finishedWork.tag) { - case FunctionComponent: - case ForwardRef: - case SimpleMemoComponent: { - recursivelyTraversePassiveUnmountEffects(finishedWork); + case SuspenseComponent: { + recursivelyTraverseMutationEffects(root, finishedWork); + commitReconciliationEffects(finishedWork); + var offscreenFiber = finishedWork.child; - if (finishedWork.flags & Passive$1) { - commitHookPassiveUnmountEffects( - finishedWork, - finishedWork.return, - Passive | HasEffect - ); - } + if (offscreenFiber.flags & Visibility) { + var newState = offscreenFiber.memoizedState; + var isHidden = newState !== null; - break; - } + if (isHidden) { + var wasHidden = + offscreenFiber.alternate !== null && + offscreenFiber.alternate.memoizedState !== null; - case OffscreenComponent: { - var instance = finishedWork.stateNode; - var nextState = finishedWork.memoizedState; - var isHidden = nextState !== null; + if (!wasHidden) { + // TODO: Move to passive phase + markCommitTimeOfFallback(); + } + } + } - if ( - isHidden && - instance._visibility & OffscreenPassiveEffectsConnected && // For backwards compatibility, don't unmount when a tree suspends. In - // the future we may change this to unmount after a delay. - (finishedWork.return === null || - finishedWork.return.tag !== SuspenseComponent) - ) { - // The effects are currently connected. Disconnect them. - // TODO: Add option or heuristic to delay before disconnecting the - // effects. Then if the tree reappears before the delay has elapsed, we - // can skip toggling the effects entirely. - instance._visibility &= ~OffscreenPassiveEffectsConnected; - recursivelyTraverseDisconnectPassiveEffects(finishedWork); - } else { - recursivelyTraversePassiveUnmountEffects(finishedWork); + if (flags & Update) { + try { + commitSuspenseCallback(finishedWork); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); + } + + var retryQueue = finishedWork.updateQueue; + + if (retryQueue !== null) { + finishedWork.updateQueue = null; + attachSuspenseRetryListeners(finishedWork, retryQueue); + } } - break; + return; } - default: { - recursivelyTraversePassiveUnmountEffects(finishedWork); - break; - } - } -} + case OffscreenComponent: { + if (flags & Ref) { + if (current !== null) { + safelyDetachRef(current, current.return); + } + } -function recursivelyTraverseDisconnectPassiveEffects(parentFiber) { - // Deletions effects can be scheduled on any fiber type. They need to happen - // before the children effects have fired. - var deletions = parentFiber.deletions; + var _newState = finishedWork.memoizedState; - if ((parentFiber.flags & ChildDeletion) !== NoFlags$1) { - if (deletions !== null) { - for (var i = 0; i < deletions.length; i++) { - var childToDelete = deletions[i]; // TODO: Convert this to use recursion + var _isHidden = _newState !== null; - nextEffect = childToDelete; - commitPassiveUnmountEffectsInsideOfDeletedTree_begin( - childToDelete, - parentFiber - ); + var _wasHidden = current !== null && current.memoizedState !== null; + + if (finishedWork.mode & ConcurrentMode) { + // Before committing the children, track on the stack whether this + // offscreen subtree was already hidden, so that we don't unmount the + // effects again. + var prevOffscreenSubtreeIsHidden = offscreenSubtreeIsHidden; + var prevOffscreenSubtreeWasHidden = offscreenSubtreeWasHidden; + offscreenSubtreeIsHidden = prevOffscreenSubtreeIsHidden || _isHidden; + offscreenSubtreeWasHidden = prevOffscreenSubtreeWasHidden || _wasHidden; + recursivelyTraverseMutationEffects(root, finishedWork); + offscreenSubtreeWasHidden = prevOffscreenSubtreeWasHidden; + offscreenSubtreeIsHidden = prevOffscreenSubtreeIsHidden; + } else { + recursivelyTraverseMutationEffects(root, finishedWork); } - } - detachAlternateSiblings(parentFiber); - } + commitReconciliationEffects(finishedWork); + var offscreenInstance = finishedWork.stateNode; // TODO: Add explicit effect flag to set _current. - var prevDebugFiber = getCurrentFiber(); // TODO: Check PassiveStatic flag + offscreenInstance._current = finishedWork; // Offscreen stores pending changes to visibility in `_pendingVisibility`. This is + // to support batching of `attach` and `detach` calls. - var child = parentFiber.child; + offscreenInstance._visibility &= ~OffscreenDetached; + offscreenInstance._visibility |= + offscreenInstance._pendingVisibility & OffscreenDetached; - while (child !== null) { - setCurrentFiber(child); - disconnectPassiveEffect(child); - child = child.sibling; - } + if (flags & Visibility) { + // Track the current state on the Offscreen instance so we can + // read it during an event + if (_isHidden) { + offscreenInstance._visibility &= ~OffscreenVisible; + } else { + offscreenInstance._visibility |= OffscreenVisible; + } - setCurrentFiber(prevDebugFiber); -} + if (_isHidden) { + var isUpdate = current !== null; + var wasHiddenByAncestorOffscreen = + offscreenSubtreeIsHidden || offscreenSubtreeWasHidden; // Only trigger disapper layout effects if: + // - This is an update, not first mount. + // - This Offscreen was not hidden before. + // - Ancestor Offscreen was not hidden in previous commit. -function disconnectPassiveEffect(finishedWork) { - switch (finishedWork.tag) { - case FunctionComponent: - case ForwardRef: - case SimpleMemoComponent: { - // TODO: Check PassiveStatic flag - commitHookPassiveUnmountEffects( - finishedWork, - finishedWork.return, - Passive - ); // When disconnecting passive effects, we fire the effects in the same - // order as during a deletiong: parent before child + if (isUpdate && !_wasHidden && !wasHiddenByAncestorOffscreen) { + if ((finishedWork.mode & ConcurrentMode) !== NoMode) { + // Disappear the layout effects of all the children + recursivelyTraverseDisappearLayoutEffects(finishedWork); + } + } + } // Offscreen with manual mode manages visibility manually. + } // TODO: Move to passive phase - recursivelyTraverseDisconnectPassiveEffects(finishedWork); - break; - } + if (flags & Update) { + var offscreenQueue = finishedWork.updateQueue; - case OffscreenComponent: { - var instance = finishedWork.stateNode; + if (offscreenQueue !== null) { + var _retryQueue = offscreenQueue.retryQueue; - if (instance._visibility & OffscreenPassiveEffectsConnected) { - instance._visibility &= ~OffscreenPassiveEffectsConnected; - recursivelyTraverseDisconnectPassiveEffects(finishedWork); + if (_retryQueue !== null) { + offscreenQueue.retryQueue = null; + attachSuspenseRetryListeners(finishedWork, _retryQueue); + } + } } - break; + return; } - default: { - recursivelyTraverseDisconnectPassiveEffects(finishedWork); - break; - } - } -} + case SuspenseListComponent: { + recursivelyTraverseMutationEffects(root, finishedWork); + commitReconciliationEffects(finishedWork); -function commitPassiveUnmountEffectsInsideOfDeletedTree_begin( - deletedSubtreeRoot, - nearestMountedAncestor -) { - while (nextEffect !== null) { - var fiber = nextEffect; // Deletion effects fire in parent -> child order - // TODO: Check if fiber has a PassiveStatic flag + if (flags & Update) { + var _retryQueue2 = finishedWork.updateQueue; - setCurrentFiber(fiber); - commitPassiveUnmountInsideDeletedTreeOnFiber(fiber, nearestMountedAncestor); - resetCurrentFiber(); - var child = fiber.child; // TODO: Only traverse subtree if it has a PassiveStatic flag. + if (_retryQueue2 !== null) { + finishedWork.updateQueue = null; + attachSuspenseRetryListeners(finishedWork, _retryQueue2); + } + } - if (child !== null) { - child.return = fiber; - nextEffect = child; - } else { - commitPassiveUnmountEffectsInsideOfDeletedTree_complete( - deletedSubtreeRoot - ); + return; } - } -} - -function commitPassiveUnmountEffectsInsideOfDeletedTree_complete( - deletedSubtreeRoot -) { - while (nextEffect !== null) { - var fiber = nextEffect; - var sibling = fiber.sibling; - var returnFiber = fiber.return; // Recursively traverse the entire deleted tree and clean up fiber fields. - // This is more aggressive than ideal, and the long term goal is to only - // have to detach the deleted tree at the root. - - detachFiberAfterEffects(fiber); - if (fiber === deletedSubtreeRoot) { - nextEffect = null; + case ScopeComponent: { return; } - if (sibling !== null) { - sibling.return = returnFiber; - nextEffect = sibling; + default: { + recursivelyTraverseMutationEffects(root, finishedWork); + commitReconciliationEffects(finishedWork); return; } - - nextEffect = returnFiber; } } -function commitPassiveUnmountInsideDeletedTreeOnFiber( - current, - nearestMountedAncestor -) { - switch (current.tag) { - case FunctionComponent: - case ForwardRef: - case SimpleMemoComponent: { - commitHookPassiveUnmountEffects(current, nearestMountedAncestor, Passive); - break; - } - } -} +function commitReconciliationEffects(finishedWork) { + // Placement effects (insertions, reorders) can be scheduled on any fiber + // type. They needs to happen after the children effects have fired, but + // before the effects on this fiber have fired. + var flags = finishedWork.flags; -function invokeLayoutEffectMountInDEV(fiber) { - { - // We don't need to re-check StrictEffectsMode here. - // This function is only called if that check has already passed. - switch (fiber.tag) { - case FunctionComponent: - case ForwardRef: - case SimpleMemoComponent: { - try { - commitHookEffectListMount(Layout | HasEffect, fiber); - } catch (error) { - captureCommitPhaseError(fiber, fiber.return, error); - } + if (flags & Placement) { + try { + commitPlacement(finishedWork); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); + } // Clear the "placement" from effect tag so that we know that this is + // inserted, before any life-cycles like componentDidMount gets called. + // TODO: findDOMNode doesn't rely on this any more but isMounted does + // and isMounted is deprecated anyway so we should be able to kill this. - break; - } + finishedWork.flags &= ~Placement; + } - case ClassComponent: { - var instance = fiber.stateNode; + if (flags & Hydrating) { + finishedWork.flags &= ~Hydrating; + } +} - try { - instance.componentDidMount(); - } catch (error) { - captureCommitPhaseError(fiber, fiber.return, error); - } +function commitLayoutEffects(finishedWork, root, committedLanes) { + inProgressLanes = committedLanes; + inProgressRoot = root; + var current = finishedWork.alternate; + commitLayoutEffectOnFiber(root, current, finishedWork); + inProgressLanes = null; + inProgressRoot = null; +} + +function recursivelyTraverseLayoutEffects(root, parentFiber, lanes) { + var prevDebugFiber = getCurrentFiber(); - break; - } + if (parentFiber.subtreeFlags & LayoutMask) { + var child = parentFiber.child; + + while (child !== null) { + setCurrentFiber(child); + var current = child.alternate; + commitLayoutEffectOnFiber(root, current, child); + child = child.sibling; } } + + setCurrentFiber(prevDebugFiber); } -function invokePassiveEffectMountInDEV(fiber) { - { - // We don't need to re-check StrictEffectsMode here. - // This function is only called if that check has already passed. - switch (fiber.tag) { - case FunctionComponent: - case ForwardRef: - case SimpleMemoComponent: { +function disappearLayoutEffects(finishedWork) { + switch (finishedWork.tag) { + case FunctionComponent: + case ForwardRef: + case MemoComponent: + case SimpleMemoComponent: { + // TODO (Offscreen) Check: flags & LayoutStatic + if (shouldProfile(finishedWork)) { try { - commitHookEffectListMount(Passive | HasEffect, fiber); - } catch (error) { - captureCommitPhaseError(fiber, fiber.return, error); + startLayoutEffectTimer(); + commitHookEffectListUnmount( + Layout, + finishedWork, + finishedWork.return + ); + } finally { + recordLayoutEffectDuration(finishedWork); } - - break; + } else { + commitHookEffectListUnmount(Layout, finishedWork, finishedWork.return); } + + recursivelyTraverseDisappearLayoutEffects(finishedWork); + break; } - } -} -function invokeLayoutEffectUnmountInDEV(fiber) { - { - // We don't need to re-check StrictEffectsMode here. - // This function is only called if that check has already passed. - switch (fiber.tag) { - case FunctionComponent: - case ForwardRef: - case SimpleMemoComponent: { - try { - commitHookEffectListUnmount(Layout | HasEffect, fiber, fiber.return); - } catch (error) { - captureCommitPhaseError(fiber, fiber.return, error); - } + case ClassComponent: { + // TODO (Offscreen) Check: flags & RefStatic + safelyDetachRef(finishedWork, finishedWork.return); + var instance = finishedWork.stateNode; - break; + if (typeof instance.componentWillUnmount === "function") { + safelyCallComponentWillUnmount( + finishedWork, + finishedWork.return, + instance + ); } - case ClassComponent: { - var instance = fiber.stateNode; + recursivelyTraverseDisappearLayoutEffects(finishedWork); + break; + } - if (typeof instance.componentWillUnmount === "function") { - safelyCallComponentWillUnmount(fiber, fiber.return, instance); - } + case HostHoistable: + case HostSingleton: + case HostComponent: { + // TODO (Offscreen) Check: flags & RefStatic + safelyDetachRef(finishedWork, finishedWork.return); + recursivelyTraverseDisappearLayoutEffects(finishedWork); + break; + } - break; + case OffscreenComponent: { + // TODO (Offscreen) Check: flags & RefStatic + safelyDetachRef(finishedWork, finishedWork.return); + var isHidden = finishedWork.memoizedState !== null; + + if (isHidden); + else { + recursivelyTraverseDisappearLayoutEffects(finishedWork); } + + break; } - } -} -function invokePassiveEffectUnmountInDEV(fiber) { - { - // We don't need to re-check StrictEffectsMode here. - // This function is only called if that check has already passed. - switch (fiber.tag) { - case FunctionComponent: - case ForwardRef: - case SimpleMemoComponent: { - try { - commitHookEffectListUnmount(Passive | HasEffect, fiber, fiber.return); - } catch (error) { - captureCommitPhaseError(fiber, fiber.return, error); - } - } + default: { + recursivelyTraverseDisappearLayoutEffects(finishedWork); + break; } } } -if (typeof Symbol === "function" && Symbol.for) { - var symbolFor = Symbol.for; - symbolFor("selector.component"); - symbolFor("selector.has_pseudo_class"); - symbolFor("selector.role"); - symbolFor("selector.test_id"); - symbolFor("selector.text"); -} +function recursivelyTraverseDisappearLayoutEffects(parentFiber) { + // TODO (Offscreen) Check: flags & (RefStatic | LayoutStatic) + var child = parentFiber.child; -var ReactCurrentActQueue$1 = ReactSharedInternals.ReactCurrentActQueue; -function isLegacyActEnvironment(fiber) { - { - // Legacy mode. We preserve the behavior of React 17's act. It assumes an - // act environment whenever `jest` is defined, but you can still turn off - // spurious warnings by setting IS_REACT_ACT_ENVIRONMENT explicitly - // to false. - // $FlowFixMe[cannot-resolve-name] Flow doesn't know about IS_REACT_ACT_ENVIRONMENT global - typeof IS_REACT_ACT_ENVIRONMENT !== "undefined" // $FlowFixMe[cannot-resolve-name] - ? IS_REACT_ACT_ENVIRONMENT - : undefined; // $FlowFixMe - Flow doesn't know about jest - return warnsIfNotActing; + while (child !== null) { + disappearLayoutEffects(child); + child = child.sibling; } } -function isConcurrentActEnvironment() { - { - var isReactActEnvironmentGlobal = // $FlowFixMe[cannot-resolve-name] Flow doesn't know about IS_REACT_ACT_ENVIRONMENT global - typeof IS_REACT_ACT_ENVIRONMENT !== "undefined" // $FlowFixMe[cannot-resolve-name] - ? IS_REACT_ACT_ENVIRONMENT - : undefined; - if ( - !isReactActEnvironmentGlobal && - ReactCurrentActQueue$1.current !== null - ) { - // TODO: Include link to relevant documentation page. - error( - "The current testing environment is not configured to support " + - "act(...)" - ); +function reappearLayoutEffects( + finishedRoot, + current, + finishedWork, // This function visits both newly finished work and nodes that were re-used + // from a previously committed tree. We cannot check non-static flags if the + // node was reused. + includeWorkInProgressEffects +) { + // Turn on layout effects in a tree that previously disappeared. + var flags = finishedWork.flags; + + switch (finishedWork.tag) { + case FunctionComponent: + case ForwardRef: + case SimpleMemoComponent: { + recursivelyTraverseReappearLayoutEffects( + finishedRoot, + finishedWork, + includeWorkInProgressEffects + ); // TODO: Check flags & LayoutStatic + + commitHookLayoutEffects(finishedWork, Layout); + break; } - return isReactActEnvironmentGlobal; - } -} + case ClassComponent: { + recursivelyTraverseReappearLayoutEffects( + finishedRoot, + finishedWork, + includeWorkInProgressEffects + ); // TODO: Check for LayoutStatic flag -var ceil = Math.ceil; -var PossiblyWeakMap = typeof WeakMap === "function" ? WeakMap : Map; -var ReactCurrentDispatcher = ReactSharedInternals.ReactCurrentDispatcher, - ReactCurrentOwner$1 = ReactSharedInternals.ReactCurrentOwner, - ReactCurrentBatchConfig = ReactSharedInternals.ReactCurrentBatchConfig, - ReactCurrentActQueue = ReactSharedInternals.ReactCurrentActQueue; -var NoContext = - /* */ - 0; -var BatchedContext = - /* */ - 1; -var RenderContext = - /* */ - 2; -var CommitContext = - /* */ - 4; -var RootInProgress = 0; -var RootFatalErrored = 1; -var RootErrored = 2; -var RootSuspended = 3; -var RootSuspendedWithDelay = 4; -var RootCompleted = 5; -var RootDidNotComplete = 6; // Describes where we are in the React execution stack + var instance = finishedWork.stateNode; -var executionContext = NoContext; // The root we're working on + if (typeof instance.componentDidMount === "function") { + try { + instance.componentDidMount(); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); + } + } // Commit any callbacks that would have fired while the component + // was hidden. -var workInProgressRoot = null; // The fiber we're working on + var updateQueue = finishedWork.updateQueue; -var workInProgress = null; // The lanes we're rendering + if (updateQueue !== null) { + commitHiddenCallbacks(updateQueue, instance); + } // If this is newly finished work, check for setState callbacks + + if (includeWorkInProgressEffects && flags & Callback) { + commitClassCallbacks(finishedWork); + } // TODO: Check flags & RefStatic + + safelyAttachRef(finishedWork, finishedWork.return); + break; + } + // Unlike commitLayoutEffectsOnFiber, we don't need to handle HostRoot + // because this function only visits nodes that are inside an + // Offscreen fiber. + // case HostRoot: { + // ... + // } + + case HostHoistable: + case HostSingleton: + case HostComponent: { + recursivelyTraverseReappearLayoutEffects( + finishedRoot, + finishedWork, + includeWorkInProgressEffects + ); // Renderers may schedule work to be done after host components are mounted + // (eg DOM renderer may schedule auto-focus for inputs and form controls). + // These effects should only be committed when components are first mounted, + // aka when there is no current/alternate. -var workInProgressRootRenderLanes = NoLanes; -var NotSuspended = 0; -var SuspendedOnError = 1; -var SuspendedOnData = 2; -var SuspendedOnImmediate = 3; -var SuspendedOnInstance = 4; -var SuspendedOnInstanceAndReadyToContinue = 5; -var SuspendedOnDeprecatedThrowPromise = 6; -var SuspendedAndReadyToContinue = 7; -var SuspendedOnHydration = 8; // When this is true, the work-in-progress fiber just suspended (or errored) and -// we've yet to unwind the stack. In some cases, we may yield to the main thread -// after this happens. If the fiber is pinged before we resume, we can retry -// immediately instead of unwinding the stack. + if (includeWorkInProgressEffects && current === null && flags & Update) { + commitHostComponentMount(finishedWork); + } // TODO: Check flags & Ref -var workInProgressSuspendedReason = NotSuspended; -var workInProgressThrownValue = null; // Whether a ping listener was attached during this render. This is slightly -// different that whether something suspended, because we don't add multiple -// listeners to a promise we've already seen (per root and lane). + safelyAttachRef(finishedWork, finishedWork.return); + break; + } -var workInProgressRootDidAttachPingListener = false; // A contextual version of workInProgressRootRenderLanes. It is a superset of -// the lanes that we started working on at the root. When we enter a subtree -// that is currently hidden, we add the lanes that would have committed if -// the hidden tree hadn't been deferred. This is modified by the -// HiddenContext module. -// -// Most things in the work loop should deal with workInProgressRootRenderLanes. -// Most things in begin/complete phases should deal with renderLanes. + case Profiler: { + recursivelyTraverseReappearLayoutEffects( + finishedRoot, + finishedWork, + includeWorkInProgressEffects + ); // TODO: Figure out how Profiler updates should work with Offscreen -var renderLanes = NoLanes; // Whether to root completed, errored, suspended, etc. + if (includeWorkInProgressEffects && flags & Update) { + commitProfilerUpdate(finishedWork, current); + } -var workInProgressRootExitStatus = RootInProgress; // A fatal error, if one is thrown + break; + } -var workInProgressRootFatalError = null; // The work left over by components that were visited during this render. Only -// includes unprocessed updates, not work in bailed out children. + case SuspenseComponent: { + recursivelyTraverseReappearLayoutEffects( + finishedRoot, + finishedWork, + includeWorkInProgressEffects + ); // TODO: Figure out how Suspense hydration callbacks should work -var workInProgressRootSkippedLanes = NoLanes; // Lanes that were updated (in an interleaved event) during this render. + break; + } -var workInProgressRootInterleavedUpdatedLanes = NoLanes; // Lanes that were updated during the render phase (*not* an interleaved event). + case OffscreenComponent: { + var offscreenState = finishedWork.memoizedState; + var isHidden = offscreenState !== null; -var workInProgressRootPingedLanes = NoLanes; // Errors that are thrown during the render phase. + if (isHidden); + else { + recursivelyTraverseReappearLayoutEffects( + finishedRoot, + finishedWork, + includeWorkInProgressEffects + ); + } // TODO: Check flags & Ref -var workInProgressRootConcurrentErrors = null; // These are errors that we recovered from without surfacing them to the UI. -// We will log them once the tree commits. + safelyAttachRef(finishedWork, finishedWork.return); + break; + } -var workInProgressRootRecoverableErrors = null; // The most recent time we committed a fallback. This lets us ensure a train -// model where we don't commit new loading states in too quick succession. + default: { + recursivelyTraverseReappearLayoutEffects( + finishedRoot, + finishedWork, + includeWorkInProgressEffects + ); + break; + } + } +} -var globalMostRecentFallbackTime = 0; -var FALLBACK_THROTTLE_MS = 500; // The absolute time for when we should start giving up on rendering -// more and prefer CPU suspense heuristics instead. +function recursivelyTraverseReappearLayoutEffects( + finishedRoot, + parentFiber, + includeWorkInProgressEffects +) { + // This function visits both newly finished work and nodes that were re-used + // from a previously committed tree. We cannot check non-static flags if the + // node was reused. + var childShouldIncludeWorkInProgressEffects = + includeWorkInProgressEffects && + (parentFiber.subtreeFlags & LayoutMask) !== NoFlags$1; // TODO (Offscreen) Check: flags & (RefStatic | LayoutStatic) -var workInProgressRootRenderTargetTime = Infinity; // How long a render is supposed to take before we start following CPU -// suspense heuristics and opt out of rendering more content. + var prevDebugFiber = getCurrentFiber(); + var child = parentFiber.child; -var RENDER_TIMEOUT_MS = 500; -var workInProgressTransitions = null; + while (child !== null) { + var current = child.alternate; + reappearLayoutEffects( + finishedRoot, + current, + child, + childShouldIncludeWorkInProgressEffects + ); + child = child.sibling; + } -function resetRenderTimer() { - workInProgressRootRenderTargetTime = now$1() + RENDER_TIMEOUT_MS; + setCurrentFiber(prevDebugFiber); } -function getRenderTargetTime() { - return workInProgressRootRenderTargetTime; -} -var hasUncaughtError = false; -var firstUncaughtError = null; -var legacyErrorBoundariesThatAlreadyFailed = null; // Only used when enableProfilerNestedUpdateScheduledHook is true; -var rootDoesHavePassiveEffects = false; -var rootWithPendingPassiveEffects = null; -var pendingPassiveEffectsLanes = NoLanes; -var pendingPassiveProfilerEffects = []; +function commitHookPassiveMountEffects(finishedWork, hookFlags) { + if (shouldProfile(finishedWork)) { + startPassiveEffectTimer(); -var NESTED_UPDATE_LIMIT = 50; -var nestedUpdateCount = 0; -var rootWithNestedUpdates = null; -var isFlushingPassiveEffects = false; -var didScheduleUpdateDuringPassiveEffects = false; -var NESTED_PASSIVE_UPDATE_LIMIT = 50; -var nestedPassiveUpdateCount = 0; -var rootWithPassiveNestedUpdates = null; // If two updates are scheduled within the same event, we should treat their -// event times as simultaneous, even if the actual clock time has advanced -// between the first and second call. + try { + commitHookEffectListMount(hookFlags, finishedWork); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); + } -var currentEventTime = NoTimestamp; -var currentEventTransitionLane = NoLanes; -var isRunningInsertionEffect = false; -function getWorkInProgressRoot() { - return workInProgressRoot; + recordPassiveEffectDuration(finishedWork); + } else { + try { + commitHookEffectListMount(hookFlags, finishedWork); + } catch (error) { + captureCommitPhaseError(finishedWork, finishedWork.return, error); + } + } } -function getWorkInProgressRootRenderLanes() { - return workInProgressRootRenderLanes; + +function commitPassiveMountEffects( + root, + finishedWork, + committedLanes, + committedTransitions +) { + setCurrentFiber(finishedWork); + commitPassiveMountOnFiber(root, finishedWork); + resetCurrentFiber(); } -function requestEventTime() { - if ((executionContext & (RenderContext | CommitContext)) !== NoContext) { - // We're inside React, so it's fine to read the actual time. - return now$1(); - } // We're not inside React, so we may be in the middle of a browser event. - if (currentEventTime !== NoTimestamp) { - // Use the same start time for all updates until we enter React again. - return currentEventTime; - } // This is the first update since React yielded. Compute a new start time. +function recursivelyTraversePassiveMountEffects( + root, + parentFiber, + committedLanes, + committedTransitions +) { + var prevDebugFiber = getCurrentFiber(); - currentEventTime = now$1(); - return currentEventTime; -} -function requestUpdateLane(fiber) { - // Special cases - var mode = fiber.mode; + if (parentFiber.subtreeFlags & PassiveMask) { + var child = parentFiber.child; - if ((mode & ConcurrentMode) === NoMode) { - return SyncLane; - } else if ( - (executionContext & RenderContext) !== NoContext && - workInProgressRootRenderLanes !== NoLanes - ) { - // This is a render phase update. These are not officially supported. The - // old behavior is to give this the same "thread" (lanes) as - // whatever is currently rendering. So if you call `setState` on a component - // that happens later in the same render, it will flush. Ideally, we want to - // remove the special case and treat them as if they came from an - // interleaved event. Regardless, this pattern is not officially supported. - // This behavior is only a fallback. The flag only exists until we can roll - // out the setState warning, since existing code might accidentally rely on - // the current behavior. - return pickArbitraryLane(workInProgressRootRenderLanes); + while (child !== null) { + setCurrentFiber(child); + commitPassiveMountOnFiber(root, child); + child = child.sibling; + } } - var isTransition = requestCurrentTransition() !== NoTransition; + setCurrentFiber(prevDebugFiber); +} - if (isTransition) { - if (ReactCurrentBatchConfig.transition !== null) { - var transition = ReactCurrentBatchConfig.transition; +function commitPassiveMountOnFiber( + finishedRoot, + finishedWork, + committedLanes, + committedTransitions +) { + // When updating this function, also update reconnectPassiveEffects, which does + // most of the same things when an offscreen tree goes from hidden -> visible, + // or when toggling effects inside a hidden tree. + var flags = finishedWork.flags; - if (!transition._updatedFibers) { - transition._updatedFibers = new Set(); + switch (finishedWork.tag) { + case FunctionComponent: + case ForwardRef: + case SimpleMemoComponent: { + recursivelyTraversePassiveMountEffects(finishedRoot, finishedWork); + + if (flags & Passive$1) { + commitHookPassiveMountEffects(finishedWork, Passive | HasEffect); } - transition._updatedFibers.add(fiber); - } // The algorithm for assigning an update to a lane should be stable for all - // updates at the same priority within the same event. To do this, the - // inputs to the algorithm must be the same. - // - // The trick we use is to cache the first of each of these inputs within an - // event. Then reset the cached values once we can be sure the event is - // over. Our heuristic for that is whenever we enter a concurrent work loop. + break; + } + + case HostRoot: { + recursivelyTraversePassiveMountEffects(finishedRoot, finishedWork); - if (currentEventTransitionLane === NoLane) { - // All transitions within the same event are assigned the same lane. - currentEventTransitionLane = claimNextTransitionLane(); + break; } - return currentEventTransitionLane; - } // Updates originating inside certain React methods, like flushSync, have - // their priority set by tracking it with a context variable. - // - // The opaque type returned by the host config is internally a lane, so we can - // use that directly. - // TODO: Move this type conversion to the event priority module. + case LegacyHiddenComponent: { + { + recursivelyTraversePassiveMountEffects(finishedRoot, finishedWork); + } - var updateLane = getCurrentUpdatePriority(); + break; + } - if (updateLane !== NoLane) { - return updateLane; - } // This update originated outside React. Ask the host environment for an - // appropriate priority, based on the type of event. - // - // The opaque type returned by the host config is internally a lane, so we can - // use that directly. - // TODO: Move this type conversion to the event priority module. + case OffscreenComponent: { + // TODO: Pass `current` as argument to this function + var _instance3 = finishedWork.stateNode; + var nextState = finishedWork.memoizedState; + var isHidden = nextState !== null; - var eventLane = getCurrentEventPriority(); - return eventLane; -} + if (isHidden) { + if (_instance3._visibility & OffscreenPassiveEffectsConnected) { + // The effects are currently connected. Update them. + recursivelyTraversePassiveMountEffects(finishedRoot, finishedWork); + } else { + if (finishedWork.mode & ConcurrentMode); + else { + // Legacy Mode: Fire the effects even if the tree is hidden. + _instance3._visibility |= OffscreenPassiveEffectsConnected; + recursivelyTraversePassiveMountEffects(finishedRoot, finishedWork); + } + } + } else { + // Tree is visible + if (_instance3._visibility & OffscreenPassiveEffectsConnected) { + // The effects are currently connected. Update them. + recursivelyTraversePassiveMountEffects(finishedRoot, finishedWork); + } else { + // The effects are currently disconnected. Reconnect them, while also + // firing effects inside newly mounted trees. This also applies to + // the initial render. + _instance3._visibility |= OffscreenPassiveEffectsConnected; + recursivelyTraverseReconnectPassiveEffects( + finishedRoot, + finishedWork + ); + } + } -function requestRetryLane(fiber) { - // This is a fork of `requestUpdateLane` designed specifically for Suspense - // "retries" — a special update that attempts to flip a Suspense boundary - // from its placeholder state to its primary/resolved state. - // Special cases - var mode = fiber.mode; + break; + } - if ((mode & ConcurrentMode) === NoMode) { - return SyncLane; - } + case CacheComponent: { + recursivelyTraversePassiveMountEffects(finishedRoot, finishedWork); - return claimNextRetryLane(); -} + break; + } -function scheduleUpdateOnFiber(root, fiber, lane, eventTime) { - { - if (isRunningInsertionEffect) { - error("useInsertionEffect must not schedule updates."); + case TracingMarkerComponent: + // eslint-disable-next-line-no-fallthrough + + default: { + recursivelyTraversePassiveMountEffects(finishedRoot, finishedWork); + break; } } +} - { - if (isFlushingPassiveEffects) { - didScheduleUpdateDuringPassiveEffects = true; - } - } // Check if the work loop is currently suspended and waiting for data to - // finish loading. +function recursivelyTraverseReconnectPassiveEffects( + finishedRoot, + parentFiber, + committedLanes, + committedTransitions, + includeWorkInProgressEffects +) { + var prevDebugFiber = getCurrentFiber(); + var child = parentFiber.child; - if ( - workInProgressSuspendedReason === SuspendedOnData && - root === workInProgressRoot - ) { - // The incoming update might unblock the current render. Interrupt the - // current attempt and restart from the top. - prepareFreshStack(root, NoLanes); - markRootSuspended(root, workInProgressRootRenderLanes); - } // Mark that the root has a pending update. + while (child !== null) { + reconnectPassiveEffects(finishedRoot, child); + child = child.sibling; + } - markRootUpdated(root, lane, eventTime); + setCurrentFiber(prevDebugFiber); +} - if ( - (executionContext & RenderContext) !== NoLanes && - root === workInProgressRoot - ) { - // This update was dispatched during the render phase. This is a mistake - // if the update originates from user space (with the exception of local - // hook updates, which are handled differently and don't reach this - // function), but there are some internal React features that use this as - // an implementation detail, like selective hydration. - warnAboutRenderPhaseUpdatesInDEV(fiber); // Track lanes that were updated during the render phase - } else { - // This is a normal update, scheduled from outside the render phase. For - // example, during an input event. - { - if (isDevToolsPresent) { - addFiberToLanesMap(root, fiber, lane); - } - } +function reconnectPassiveEffects( + finishedRoot, + finishedWork, + committedLanes, + committedTransitions, // This function visits both newly finished work and nodes that were re-used + // from a previously committed tree. We cannot check non-static flags if the + // node was reused. + includeWorkInProgressEffects +) { + switch (finishedWork.tag) { + case FunctionComponent: + case ForwardRef: + case SimpleMemoComponent: { + recursivelyTraverseReconnectPassiveEffects(finishedRoot, finishedWork); // TODO: Check for PassiveStatic flag - warnIfUpdatesNotWrappedWithActDEV(fiber); + commitHookPassiveMountEffects(finishedWork, Passive); + break; + } + // Unlike commitPassiveMountOnFiber, we don't need to handle HostRoot + // because this function only visits nodes that are inside an + // Offscreen fiber. + // case HostRoot: { + // ... + // } - if (root === workInProgressRoot) { - // Received an update to a tree that's in the middle of rendering. Mark - // that there was an interleaved update work on this root. Unless the - // `deferRenderPhaseUpdateToNextBatch` flag is off and this is a render - // phase update. In that case, we don't treat render phase updates as if - // they were interleaved, for backwards compat reasons. - if ((executionContext & RenderContext) === NoContext) { - workInProgressRootInterleavedUpdatedLanes = mergeLanes( - workInProgressRootInterleavedUpdatedLanes, - lane - ); + case LegacyHiddenComponent: { + { + recursivelyTraverseReconnectPassiveEffects(finishedRoot, finishedWork); } - if (workInProgressRootExitStatus === RootSuspendedWithDelay) { - // The root already suspended with a delay, which means this render - // definitely won't finish. Since we have a new update, let's mark it as - // suspended now, right before marking the incoming update. This has the - // effect of interrupting the current render and switching to the update. - // TODO: Make sure this doesn't override pings that happen while we've - // already started rendering. - markRootSuspended(root, workInProgressRootRenderLanes); - } + break; } - ensureRootIsScheduled(root, eventTime); - - if ( - lane === SyncLane && - executionContext === NoContext && - (fiber.mode & ConcurrentMode) === NoMode && // Treat `act` as if it's inside `batchedUpdates`, even in legacy mode. - !ReactCurrentActQueue.isBatchingLegacy - ) { - // Flush the synchronous work now, unless we're already working or inside - // a batch. This is intentionally inside scheduleUpdateOnFiber instead of - // scheduleCallbackForFiber to preserve the ability to schedule a callback - // without immediately flushing it. We only do this for user-initiated - // updates, to preserve historical behavior of legacy mode. - resetRenderTimer(); - flushSyncCallbacksOnlyInLegacyMode(); - } - } -} -function isUnsafeClassRenderPhaseUpdate(fiber) { - // Check if this is a render phase update. Only called by class components, - // which special (deprecated) behavior for UNSAFE_componentWillReceive props. - return ( - // TODO: Remove outdated deferRenderPhaseUpdateToNextBatch experiment. We - // decided not to enable it. - (executionContext & RenderContext) !== NoContext - ); -} // Use this function to schedule a task for a root. There's only one task per -// root; if a task was already scheduled, we'll check to make sure the priority -// of the existing task is the same as the priority of the next level that the -// root has work on. This function is called on every update, and right before -// exiting a task. + case OffscreenComponent: { + var _instance4 = finishedWork.stateNode; + var nextState = finishedWork.memoizedState; + var isHidden = nextState !== null; -function ensureRootIsScheduled(root, currentTime) { - var existingCallbackNode = root.callbackNode; // Check if any lanes are being starved by other work. If so, mark them as - // expired so we know to work on those next. + if (isHidden) { + if (_instance4._visibility & OffscreenPassiveEffectsConnected) { + // The effects are currently connected. Update them. + recursivelyTraverseReconnectPassiveEffects( + finishedRoot, + finishedWork + ); + } else { + if (finishedWork.mode & ConcurrentMode); + else { + // Legacy Mode: Fire the effects even if the tree is hidden. + _instance4._visibility |= OffscreenPassiveEffectsConnected; + recursivelyTraverseReconnectPassiveEffects( + finishedRoot, + finishedWork + ); + } + } + } else { + // Tree is visible + // Since we're already inside a reconnecting tree, it doesn't matter + // whether the effects are currently connected. In either case, we'll + // continue traversing the tree and firing all the effects. + // + // We do need to set the "connected" flag on the instance, though. + _instance4._visibility |= OffscreenPassiveEffectsConnected; + recursivelyTraverseReconnectPassiveEffects(finishedRoot, finishedWork); + } - markStarvedLanesAsExpired(root, currentTime); // Determine the next lanes to work on, and their priority. + break; + } - var nextLanes = getNextLanes( - root, - root === workInProgressRoot ? workInProgressRootRenderLanes : NoLanes - ); + case CacheComponent: { + recursivelyTraverseReconnectPassiveEffects(finishedRoot, finishedWork); - if (nextLanes === NoLanes) { - // Special case: There's nothing to work on. - if (existingCallbackNode !== null) { - cancelCallback(existingCallbackNode); + break; } - root.callbackNode = null; - root.callbackPriority = NoLane; - return; - } // If this root is currently suspended and waiting for data to resolve, don't - // schedule a task to render it. We'll either wait for a ping, or wait to - // receive an update. + case TracingMarkerComponent: + // eslint-disable-next-line-no-fallthrough - if ( - workInProgressSuspendedReason === SuspendedOnData && - workInProgressRoot === root - ) { - root.callbackPriority = NoLane; - root.callbackNode = null; - return; + default: { + recursivelyTraverseReconnectPassiveEffects(finishedRoot, finishedWork); + break; + } } +} - var cancelPendingCommit = root.cancelPendingCommit; +function commitPassiveUnmountEffects(finishedWork) { + setCurrentFiber(finishedWork); + commitPassiveUnmountOnFiber(finishedWork); + resetCurrentFiber(); +} - if (cancelPendingCommit !== null) { - // We should only interrupt a pending commit if the new update - // is urgent. - if (includesOnlyNonUrgentLanes(nextLanes)) { - // The new update is not urgent. Don't interrupt the pending commit. - root.callbackPriority = NoLane; - root.callbackNode = null; - return; +function detachAlternateSiblings(parentFiber) { + // A fiber was deleted from this parent fiber, but it's still part of the + // previous (alternate) parent fiber's list of children. Because children + // are a linked list, an earlier sibling that's still alive will be + // connected to the deleted fiber via its `alternate`: + // + // live fiber --alternate--> previous live fiber --sibling--> deleted + // fiber + // + // We can't disconnect `alternate` on nodes that haven't been deleted yet, + // but we can disconnect the `sibling` and `child` pointers. + var previousFiber = parentFiber.alternate; + + if (previousFiber !== null) { + var detachedChild = previousFiber.child; + + if (detachedChild !== null) { + previousFiber.child = null; + + do { + // $FlowFixMe[incompatible-use] found when upgrading Flow + var detachedSibling = detachedChild.sibling; // $FlowFixMe[incompatible-use] found when upgrading Flow + + detachedChild.sibling = null; + detachedChild = detachedSibling; + } while (detachedChild !== null); } - } // We use the highest priority lane to represent the priority of the callback. + } +} - var newCallbackPriority = getHighestPriorityLane(nextLanes); // Check if there's an existing task. We may be able to reuse it. +function commitHookPassiveUnmountEffects( + finishedWork, + nearestMountedAncestor, + hookFlags +) { + if (shouldProfile(finishedWork)) { + startPassiveEffectTimer(); + commitHookEffectListUnmount( + hookFlags, + finishedWork, + nearestMountedAncestor + ); + recordPassiveEffectDuration(finishedWork); + } else { + commitHookEffectListUnmount( + hookFlags, + finishedWork, + nearestMountedAncestor + ); + } +} - var existingCallbackPriority = root.callbackPriority; +function recursivelyTraversePassiveUnmountEffects(parentFiber) { + // Deletions effects can be scheduled on any fiber type. They need to happen + // before the children effects have fired. + var deletions = parentFiber.deletions; - if ( - existingCallbackPriority === newCallbackPriority && // Special case related to `act`. If the currently scheduled task is a - // Scheduler task, rather than an `act` task, cancel it and re-scheduled - // on the `act` queue. - !( - ReactCurrentActQueue.current !== null && - existingCallbackNode !== fakeActCallbackNode - ) - ) { - { - // If we're going to re-use an existing task, it needs to exist. - // Assume that discrete update microtasks are non-cancellable and null. - // TODO: Temporary until we confirm this warning is not fired. - if ( - existingCallbackNode == null && - !includesSyncLane(existingCallbackPriority) - ) { - error( - "Expected scheduled callback to exist. This error is likely caused by a bug in React. Please file an issue." + if ((parentFiber.flags & ChildDeletion) !== NoFlags$1) { + if (deletions !== null) { + for (var i = 0; i < deletions.length; i++) { + var childToDelete = deletions[i]; // TODO: Convert this to use recursion + + nextEffect = childToDelete; + commitPassiveUnmountEffectsInsideOfDeletedTree_begin( + childToDelete, + parentFiber ); } - } // The priority hasn't changed. We can reuse the existing task. Exit. + } - return; + detachAlternateSiblings(parentFiber); } - if (existingCallbackNode != null) { - // Cancel the existing callback. We'll schedule a new one below. - cancelCallback(existingCallbackNode); - } // Schedule a new callback. - - var newCallbackNode; + var prevDebugFiber = getCurrentFiber(); // TODO: Split PassiveMask into separate masks for mount and unmount? - if (includesSyncLane(newCallbackPriority)) { - // Special case: Sync React callbacks are scheduled on a special - // internal queue - if (root.tag === LegacyRoot) { - if (ReactCurrentActQueue.isBatchingLegacy !== null) { - ReactCurrentActQueue.didScheduleLegacyUpdate = true; - } + if (parentFiber.subtreeFlags & PassiveMask) { + var child = parentFiber.child; - scheduleLegacySyncCallback(performSyncWorkOnRoot.bind(null, root)); - } else { - scheduleSyncCallback(performSyncWorkOnRoot.bind(null, root)); + while (child !== null) { + setCurrentFiber(child); + commitPassiveUnmountOnFiber(child); + child = child.sibling; } + } - { - // Flush the queue in an Immediate task. - scheduleCallback(ImmediatePriority, flushSyncCallbacks); - } + setCurrentFiber(prevDebugFiber); +} - newCallbackNode = null; - } else { - var schedulerPriorityLevel; +function commitPassiveUnmountOnFiber(finishedWork) { + switch (finishedWork.tag) { + case FunctionComponent: + case ForwardRef: + case SimpleMemoComponent: { + recursivelyTraversePassiveUnmountEffects(finishedWork); - switch (lanesToEventPriority(nextLanes)) { - case DiscreteEventPriority: - schedulerPriorityLevel = ImmediatePriority; - break; + if (finishedWork.flags & Passive$1) { + commitHookPassiveUnmountEffects( + finishedWork, + finishedWork.return, + Passive | HasEffect + ); + } - case ContinuousEventPriority: - schedulerPriorityLevel = UserBlockingPriority; - break; + break; + } - case DefaultEventPriority: - schedulerPriorityLevel = NormalPriority; - break; + case OffscreenComponent: { + var instance = finishedWork.stateNode; + var nextState = finishedWork.memoizedState; + var isHidden = nextState !== null; - case IdleEventPriority: - schedulerPriorityLevel = IdlePriority; - break; + if ( + isHidden && + instance._visibility & OffscreenPassiveEffectsConnected && // For backwards compatibility, don't unmount when a tree suspends. In + // the future we may change this to unmount after a delay. + (finishedWork.return === null || + finishedWork.return.tag !== SuspenseComponent) + ) { + // The effects are currently connected. Disconnect them. + // TODO: Add option or heuristic to delay before disconnecting the + // effects. Then if the tree reappears before the delay has elapsed, we + // can skip toggling the effects entirely. + instance._visibility &= ~OffscreenPassiveEffectsConnected; + recursivelyTraverseDisconnectPassiveEffects(finishedWork); + } else { + recursivelyTraversePassiveUnmountEffects(finishedWork); + } - default: - schedulerPriorityLevel = NormalPriority; - break; + break; } - newCallbackNode = scheduleCallback( - schedulerPriorityLevel, - performConcurrentWorkOnRoot.bind(null, root) - ); + default: { + recursivelyTraversePassiveUnmountEffects(finishedWork); + break; + } } +} - root.callbackPriority = newCallbackPriority; - root.callbackNode = newCallbackNode; -} // This is the entry point for every concurrent task, i.e. anything that -// goes through Scheduler. +function recursivelyTraverseDisconnectPassiveEffects(parentFiber) { + // Deletions effects can be scheduled on any fiber type. They need to happen + // before the children effects have fired. + var deletions = parentFiber.deletions; -function performConcurrentWorkOnRoot(root, didTimeout) { - { - resetNestedUpdateFlag(); - } // Since we know we're in a React event, we can clear the current - // event time. The next update will compute a new event time. + if ((parentFiber.flags & ChildDeletion) !== NoFlags$1) { + if (deletions !== null) { + for (var i = 0; i < deletions.length; i++) { + var childToDelete = deletions[i]; // TODO: Convert this to use recursion - currentEventTime = NoTimestamp; - currentEventTransitionLane = NoLanes; + nextEffect = childToDelete; + commitPassiveUnmountEffectsInsideOfDeletedTree_begin( + childToDelete, + parentFiber + ); + } + } + + detachAlternateSiblings(parentFiber); + } - if ((executionContext & (RenderContext | CommitContext)) !== NoContext) { - throw new Error("Should not already be working."); - } // Flush any pending passive effects before deciding which lanes to work on, - // in case they schedule additional work. + var prevDebugFiber = getCurrentFiber(); // TODO: Check PassiveStatic flag - var originalCallbackNode = root.callbackNode; - var didFlushPassiveEffects = flushPassiveEffects(); + var child = parentFiber.child; - if (didFlushPassiveEffects) { - // Something in the passive effect phase may have canceled the current task. - // Check if the task node for this root was changed. - if (root.callbackNode !== originalCallbackNode) { - // The current task was canceled. Exit. We don't need to call - // `ensureRootIsScheduled` because the check above implies either that - // there's a new task, or that there's no remaining work on this root. - return null; - } - } // Determine the next lanes to work on, using the fields stored - // on the root. + while (child !== null) { + setCurrentFiber(child); + disconnectPassiveEffect(child); + child = child.sibling; + } - var lanes = getNextLanes( - root, - root === workInProgressRoot ? workInProgressRootRenderLanes : NoLanes - ); + setCurrentFiber(prevDebugFiber); +} - if (lanes === NoLanes) { - // Defensive coding. This is never expected to happen. - return null; - } // We disable time-slicing in some cases: if the work has been CPU-bound - // for too long ("expired" work, to prevent starvation), or we're in - // sync-updates-by-default mode. - // TODO: We only check `didTimeout` defensively, to account for a Scheduler - // bug we're still investigating. Once the bug in Scheduler is fixed, - // we can remove this, since we track expiration ourselves. +function disconnectPassiveEffect(finishedWork) { + switch (finishedWork.tag) { + case FunctionComponent: + case ForwardRef: + case SimpleMemoComponent: { + // TODO: Check PassiveStatic flag + commitHookPassiveUnmountEffects( + finishedWork, + finishedWork.return, + Passive + ); // When disconnecting passive effects, we fire the effects in the same + // order as during a deletiong: parent before child - var shouldTimeSlice = - !includesBlockingLane(root, lanes) && - !includesExpiredLane(root, lanes) && - !didTimeout; - var exitStatus = shouldTimeSlice - ? renderRootConcurrent(root, lanes) - : renderRootSync(root, lanes); + recursivelyTraverseDisconnectPassiveEffects(finishedWork); + break; + } - if (exitStatus !== RootInProgress) { - if (exitStatus === RootErrored) { - // If something threw an error, try rendering one more time. We'll - // render synchronously to block concurrent data mutations, and we'll - // includes all pending updates are included. If it still fails after - // the second attempt, we'll give up and commit the resulting tree. - var originallyAttemptedLanes = lanes; - var errorRetryLanes = getLanesToRetrySynchronouslyOnError( - root, - originallyAttemptedLanes - ); + case OffscreenComponent: { + var instance = finishedWork.stateNode; - if (errorRetryLanes !== NoLanes) { - lanes = errorRetryLanes; - exitStatus = recoverFromConcurrentError( - root, - originallyAttemptedLanes, - errorRetryLanes - ); + if (instance._visibility & OffscreenPassiveEffectsConnected) { + instance._visibility &= ~OffscreenPassiveEffectsConnected; + recursivelyTraverseDisconnectPassiveEffects(finishedWork); } + + break; } - if (exitStatus === RootFatalErrored) { - var fatalError = workInProgressRootFatalError; - prepareFreshStack(root, NoLanes); - markRootSuspended(root, lanes); - ensureRootIsScheduled(root, now$1()); - throw fatalError; + default: { + recursivelyTraverseDisconnectPassiveEffects(finishedWork); + break; } + } +} - if (exitStatus === RootDidNotComplete) { - // The render unwound without completing the tree. This happens in special - // cases where need to exit the current render without producing a - // consistent tree or committing. - markRootSuspended(root, lanes); +function commitPassiveUnmountEffectsInsideOfDeletedTree_begin( + deletedSubtreeRoot, + nearestMountedAncestor +) { + while (nextEffect !== null) { + var fiber = nextEffect; // Deletion effects fire in parent -> child order + // TODO: Check if fiber has a PassiveStatic flag + + setCurrentFiber(fiber); + commitPassiveUnmountInsideDeletedTreeOnFiber(fiber, nearestMountedAncestor); + resetCurrentFiber(); + var child = fiber.child; // TODO: Only traverse subtree if it has a PassiveStatic flag. + + if (child !== null) { + child.return = fiber; + nextEffect = child; } else { - // The render completed. - // Check if this render may have yielded to a concurrent event, and if so, - // confirm that any newly rendered stores are consistent. - // TODO: It's possible that even a concurrent render may never have yielded - // to the main thread, if it was fast enough, or if it expired. We could - // skip the consistency check in that case, too. - var renderWasConcurrent = !includesBlockingLane(root, lanes); - var finishedWork = root.current.alternate; + commitPassiveUnmountEffectsInsideOfDeletedTree_complete( + deletedSubtreeRoot + ); + } + } +} - if ( - renderWasConcurrent && - !isRenderConsistentWithExternalStores(finishedWork) - ) { - // A store was mutated in an interleaved event. Render again, - // synchronously, to block further mutations. - exitStatus = renderRootSync(root, lanes); // We need to check again if something threw +function commitPassiveUnmountEffectsInsideOfDeletedTree_complete( + deletedSubtreeRoot +) { + while (nextEffect !== null) { + var fiber = nextEffect; + var sibling = fiber.sibling; + var returnFiber = fiber.return; // Recursively traverse the entire deleted tree and clean up fiber fields. + // This is more aggressive than ideal, and the long term goal is to only + // have to detach the deleted tree at the root. - if (exitStatus === RootErrored) { - var _originallyAttemptedLanes = lanes; + detachFiberAfterEffects(fiber); - var _errorRetryLanes = getLanesToRetrySynchronouslyOnError( - root, - _originallyAttemptedLanes - ); + if (fiber === deletedSubtreeRoot) { + nextEffect = null; + return; + } - if (_errorRetryLanes !== NoLanes) { - lanes = _errorRetryLanes; - exitStatus = recoverFromConcurrentError( - root, - _originallyAttemptedLanes, - _errorRetryLanes - ); // We assume the tree is now consistent because we didn't yield to any - // concurrent events. - } - } + if (sibling !== null) { + sibling.return = returnFiber; + nextEffect = sibling; + return; + } - if (exitStatus === RootFatalErrored) { - var _fatalError = workInProgressRootFatalError; - prepareFreshStack(root, NoLanes); - markRootSuspended(root, lanes); - ensureRootIsScheduled(root, now$1()); - throw _fatalError; - } // FIXME: Need to check for RootDidNotComplete again. The factoring here - // isn't ideal. - } // We now have a consistent tree. The next step is either to commit it, - // or, if something suspended, wait to commit it after a timeout. + nextEffect = returnFiber; + } +} - root.finishedWork = finishedWork; - root.finishedLanes = lanes; - finishConcurrentRender(root, exitStatus, finishedWork, lanes); +function commitPassiveUnmountInsideDeletedTreeOnFiber( + current, + nearestMountedAncestor +) { + switch (current.tag) { + case FunctionComponent: + case ForwardRef: + case SimpleMemoComponent: { + commitHookPassiveUnmountEffects(current, nearestMountedAncestor, Passive); + break; } } +} - ensureRootIsScheduled(root, now$1()); +function invokeLayoutEffectMountInDEV(fiber) { + { + // We don't need to re-check StrictEffectsMode here. + // This function is only called if that check has already passed. + switch (fiber.tag) { + case FunctionComponent: + case ForwardRef: + case SimpleMemoComponent: { + try { + commitHookEffectListMount(Layout | HasEffect, fiber); + } catch (error) { + captureCommitPhaseError(fiber, fiber.return, error); + } - if (root.callbackNode === originalCallbackNode) { - // The task node scheduled for this root is the same one that's - // currently executed. Need to return a continuation. - return performConcurrentWorkOnRoot.bind(null, root); - } + break; + } - return null; -} + case ClassComponent: { + var instance = fiber.stateNode; -function recoverFromConcurrentError( - root, - originallyAttemptedLanes, - errorRetryLanes -) { - // If an error occurred during hydration, discard server response and fall - // back to client side render. - // Before rendering again, save the errors from the previous attempt. - var errorsFromFirstAttempt = workInProgressRootConcurrentErrors; - var wasRootDehydrated = isRootDehydrated(root); + try { + instance.componentDidMount(); + } catch (error) { + captureCommitPhaseError(fiber, fiber.return, error); + } - if (wasRootDehydrated) { - // The shell failed to hydrate. Set a flag to force a client rendering - // during the next attempt. To do this, we call prepareFreshStack now - // to create the root work-in-progress fiber. This is a bit weird in terms - // of factoring, because it relies on renderRootSync not calling - // prepareFreshStack again in the call below, which happens because the - // root and lanes haven't changed. - // - // TODO: I think what we should do is set ForceClientRender inside - // throwException, like we do for nested Suspense boundaries. The reason - // it's here instead is so we can switch to the synchronous work loop, too. - // Something to consider for a future refactor. - var rootWorkInProgress = prepareFreshStack(root, errorRetryLanes); - rootWorkInProgress.flags |= ForceClientRender; + break; + } + } + } +} - { - errorHydratingContainer(); +function invokePassiveEffectMountInDEV(fiber) { + { + // We don't need to re-check StrictEffectsMode here. + // This function is only called if that check has already passed. + switch (fiber.tag) { + case FunctionComponent: + case ForwardRef: + case SimpleMemoComponent: { + try { + commitHookEffectListMount(Passive | HasEffect, fiber); + } catch (error) { + captureCommitPhaseError(fiber, fiber.return, error); + } + + break; + } } } +} - var exitStatus = renderRootSync(root, errorRetryLanes); +function invokeLayoutEffectUnmountInDEV(fiber) { + { + // We don't need to re-check StrictEffectsMode here. + // This function is only called if that check has already passed. + switch (fiber.tag) { + case FunctionComponent: + case ForwardRef: + case SimpleMemoComponent: { + try { + commitHookEffectListUnmount(Layout | HasEffect, fiber, fiber.return); + } catch (error) { + captureCommitPhaseError(fiber, fiber.return, error); + } - if (exitStatus !== RootErrored) { - // Successfully finished rendering on retry - if (workInProgressRootDidAttachPingListener && !wasRootDehydrated) { - // During the synchronous render, we attached additional ping listeners. - // This is highly suggestive of an uncached promise (though it's not the - // only reason this would happen). If it was an uncached promise, then - // it may have masked a downstream error from ocurring without actually - // fixing it. Example: - // - // use(Promise.resolve('uncached')) - // throw new Error('Oops!') - // - // When this happens, there's a conflict between blocking potential - // concurrent data races and unwrapping uncached promise values. We - // have to choose one or the other. Because the data race recovery is - // a last ditch effort, we'll disable it. - root.errorRecoveryDisabledLanes = mergeLanes( - root.errorRecoveryDisabledLanes, - originallyAttemptedLanes - ); // Mark the current render as suspended and force it to restart. Once - // these lanes finish successfully, we'll re-enable the error recovery - // mechanism for subsequent updates. + break; + } - workInProgressRootInterleavedUpdatedLanes |= originallyAttemptedLanes; - return RootSuspendedWithDelay; - } // The errors from the failed first attempt have been recovered. Add - // them to the collection of recoverable errors. We'll log them in the - // commit phase. + case ClassComponent: { + var instance = fiber.stateNode; - var errorsFromSecondAttempt = workInProgressRootRecoverableErrors; - workInProgressRootRecoverableErrors = errorsFromFirstAttempt; // The errors from the second attempt should be queued after the errors - // from the first attempt, to preserve the causal sequence. + if (typeof instance.componentWillUnmount === "function") { + safelyCallComponentWillUnmount(fiber, fiber.return, instance); + } - if (errorsFromSecondAttempt !== null) { - queueRecoverableErrors(errorsFromSecondAttempt); + break; + } } } - - return exitStatus; } -function queueRecoverableErrors(errors) { - if (workInProgressRootRecoverableErrors === null) { - workInProgressRootRecoverableErrors = errors; - } else { - // $FlowFixMe[method-unbinding] - workInProgressRootRecoverableErrors.push.apply( - workInProgressRootRecoverableErrors, - errors - ); +function invokePassiveEffectUnmountInDEV(fiber) { + { + // We don't need to re-check StrictEffectsMode here. + // This function is only called if that check has already passed. + switch (fiber.tag) { + case FunctionComponent: + case ForwardRef: + case SimpleMemoComponent: { + try { + commitHookEffectListUnmount(Passive | HasEffect, fiber, fiber.return); + } catch (error) { + captureCommitPhaseError(fiber, fiber.return, error); + } + } + } } } -function finishConcurrentRender(root, exitStatus, finishedWork, lanes) { - switch (exitStatus) { - case RootInProgress: - case RootFatalErrored: { - throw new Error("Root did not complete. This is a bug in React."); - } - // Flow knows about invariant, so it complains if I add a break - // statement, but eslint doesn't know about invariant, so it complains - // if I do. eslint-disable-next-line no-fallthrough +if (typeof Symbol === "function" && Symbol.for) { + var symbolFor = Symbol.for; + symbolFor("selector.component"); + symbolFor("selector.has_pseudo_class"); + symbolFor("selector.role"); + symbolFor("selector.test_id"); + symbolFor("selector.text"); +} - case RootErrored: { - // We should have already attempted to retry this tree. If we reached - // this point, it errored again. Commit it. - commitRootWhenReady( - root, - finishedWork, - workInProgressRootRecoverableErrors, - workInProgressTransitions, - lanes +var ReactCurrentActQueue$1 = ReactSharedInternals.ReactCurrentActQueue; +function isLegacyActEnvironment(fiber) { + { + // Legacy mode. We preserve the behavior of React 17's act. It assumes an + // act environment whenever `jest` is defined, but you can still turn off + // spurious warnings by setting IS_REACT_ACT_ENVIRONMENT explicitly + // to false. + // $FlowFixMe[cannot-resolve-name] Flow doesn't know about IS_REACT_ACT_ENVIRONMENT global + typeof IS_REACT_ACT_ENVIRONMENT !== "undefined" // $FlowFixMe[cannot-resolve-name] + ? IS_REACT_ACT_ENVIRONMENT + : undefined; // $FlowFixMe - Flow doesn't know about jest + return warnsIfNotActing; + } +} +function isConcurrentActEnvironment() { + { + var isReactActEnvironmentGlobal = // $FlowFixMe[cannot-resolve-name] Flow doesn't know about IS_REACT_ACT_ENVIRONMENT global + typeof IS_REACT_ACT_ENVIRONMENT !== "undefined" // $FlowFixMe[cannot-resolve-name] + ? IS_REACT_ACT_ENVIRONMENT + : undefined; + + if ( + !isReactActEnvironmentGlobal && + ReactCurrentActQueue$1.current !== null + ) { + // TODO: Include link to relevant documentation page. + error( + "The current testing environment is not configured to support " + + "act(...)" ); - break; } - case RootSuspended: { - markRootSuspended(root, lanes); // We have an acceptable loading state. We need to figure out if we - // should immediately commit it or wait a bit. + return isReactActEnvironmentGlobal; + } +} - if ( - includesOnlyRetries(lanes) && // do not delay if we're inside an act() scope - !shouldForceFlushFallbacksInDEV() - ) { - // This render only included retries, no updates. Throttle committing - // retries so that we don't show too many loading states too quickly. - var msUntilTimeout = - globalMostRecentFallbackTime + FALLBACK_THROTTLE_MS - now$1(); // Don't bother with a very short suspense time. +var ceil = Math.ceil; +var PossiblyWeakMap = typeof WeakMap === "function" ? WeakMap : Map; +var ReactCurrentDispatcher = ReactSharedInternals.ReactCurrentDispatcher, + ReactCurrentOwner$1 = ReactSharedInternals.ReactCurrentOwner, + ReactCurrentBatchConfig = ReactSharedInternals.ReactCurrentBatchConfig, + ReactCurrentActQueue = ReactSharedInternals.ReactCurrentActQueue; +var NoContext = + /* */ + 0; +var BatchedContext = + /* */ + 1; +var RenderContext = + /* */ + 2; +var CommitContext = + /* */ + 4; +var RootInProgress = 0; +var RootFatalErrored = 1; +var RootErrored = 2; +var RootSuspended = 3; +var RootSuspendedWithDelay = 4; +var RootCompleted = 5; +var RootDidNotComplete = 6; // Describes where we are in the React execution stack - if (msUntilTimeout > 10) { - var nextLanes = getNextLanes(root, NoLanes); +var executionContext = NoContext; // The root we're working on - if (nextLanes !== NoLanes) { - // There's additional work on this root. - break; - } // The render is suspended, it hasn't timed out, and there's no - // lower priority work to do. Instead of committing the fallback - // immediately, wait for more data to arrive. +var workInProgressRoot = null; // The fiber we're working on - root.timeoutHandle = scheduleTimeout( - commitRootWhenReady.bind( - null, - root, - finishedWork, - workInProgressRootRecoverableErrors, - workInProgressTransitions, - lanes - ), - msUntilTimeout - ); - break; - } - } // The work expired. Commit immediately. +var workInProgress = null; // The lanes we're rendering - commitRootWhenReady( - root, - finishedWork, - workInProgressRootRecoverableErrors, - workInProgressTransitions, - lanes - ); - break; - } +var workInProgressRootRenderLanes = NoLanes; +var NotSuspended = 0; +var SuspendedOnError = 1; +var SuspendedOnData = 2; +var SuspendedOnImmediate = 3; +var SuspendedOnInstance = 4; +var SuspendedOnInstanceAndReadyToContinue = 5; +var SuspendedOnDeprecatedThrowPromise = 6; +var SuspendedAndReadyToContinue = 7; +var SuspendedOnHydration = 8; // When this is true, the work-in-progress fiber just suspended (or errored) and +// we've yet to unwind the stack. In some cases, we may yield to the main thread +// after this happens. If the fiber is pinged before we resume, we can retry +// immediately instead of unwinding the stack. + +var workInProgressSuspendedReason = NotSuspended; +var workInProgressThrownValue = null; // Whether a ping listener was attached during this render. This is slightly +// different that whether something suspended, because we don't add multiple +// listeners to a promise we've already seen (per root and lane). + +var workInProgressRootDidAttachPingListener = false; // A contextual version of workInProgressRootRenderLanes. It is a superset of +// the lanes that we started working on at the root. When we enter a subtree +// that is currently hidden, we add the lanes that would have committed if +// the hidden tree hadn't been deferred. This is modified by the +// HiddenContext module. +// +// Most things in the work loop should deal with workInProgressRootRenderLanes. +// Most things in begin/complete phases should deal with renderLanes. - case RootSuspendedWithDelay: { - markRootSuspended(root, lanes); +var renderLanes = NoLanes; // Whether to root completed, errored, suspended, etc. - if (includesOnlyTransitions(lanes)) { - // This is a transition, so we should exit without committing a - // placeholder and without scheduling a timeout. Delay indefinitely - // until we receive more data. - break; - } +var workInProgressRootExitStatus = RootInProgress; // A fatal error, if one is thrown - if (!shouldForceFlushFallbacksInDEV()) { - // This is not a transition, but we did trigger an avoided state. - // Schedule a placeholder to display after a short delay, using the Just - // Noticeable Difference. - // TODO: Is the JND optimization worth the added complexity? If this is - // the only reason we track the event time, then probably not. - // Consider removing. - var mostRecentEventTime = getMostRecentEventTime(root, lanes); - var eventTimeMs = mostRecentEventTime; - var timeElapsedMs = now$1() - eventTimeMs; +var workInProgressRootFatalError = null; // The work left over by components that were visited during this render. Only +// includes unprocessed updates, not work in bailed out children. - var _msUntilTimeout = jnd(timeElapsedMs) - timeElapsedMs; // Don't bother with a very short suspense time. +var workInProgressRootSkippedLanes = NoLanes; // Lanes that were updated (in an interleaved event) during this render. - if (_msUntilTimeout > 10) { - // Instead of committing the fallback immediately, wait for more data - // to arrive. - root.timeoutHandle = scheduleTimeout( - commitRootWhenReady.bind( - null, - root, - finishedWork, - workInProgressRootRecoverableErrors, - workInProgressTransitions, - lanes - ), - _msUntilTimeout - ); - break; - } - } // Commit the placeholder. +var workInProgressRootInterleavedUpdatedLanes = NoLanes; // Lanes that were updated during the render phase (*not* an interleaved event). - commitRootWhenReady( - root, - finishedWork, - workInProgressRootRecoverableErrors, - workInProgressTransitions, - lanes - ); - break; - } +var workInProgressRootPingedLanes = NoLanes; // Errors that are thrown during the render phase. - case RootCompleted: { - // The work completed. - commitRootWhenReady( - root, - finishedWork, - workInProgressRootRecoverableErrors, - workInProgressTransitions, - lanes - ); - break; - } +var workInProgressRootConcurrentErrors = null; // These are errors that we recovered from without surfacing them to the UI. +// We will log them once the tree commits. - default: { - throw new Error("Unknown root exit status."); - } - } -} +var workInProgressRootRecoverableErrors = null; // The most recent time we committed a fallback. This lets us ensure a train +// model where we don't commit new loading states in too quick succession. -function commitRootWhenReady( - root, - finishedWork, - recoverableErrors, - transitions, - lanes -) { - if (includesOnlyNonUrgentLanes(lanes)) { - // suspend. If it's not ready, it will return a callback to subscribe to - // a ready event. +var globalMostRecentFallbackTime = 0; +var FALLBACK_THROTTLE_MS = 500; // The absolute time for when we should start giving up on rendering +// more and prefer CPU suspense heuristics instead. - var schedulePendingCommit = waitForCommitToBeReady(); +var workInProgressRootRenderTargetTime = Infinity; // How long a render is supposed to take before we start following CPU +// suspense heuristics and opt out of rendering more content. - if (schedulePendingCommit !== null) { - // NOTE: waitForCommitToBeReady returns a subscribe function so that we - // only allocate a function if the commit isn't ready yet. The other - // pattern would be to always pass a callback to waitForCommitToBeReady. - // Not yet ready to commit. Delay the commit until the renderer notifies - // us that it's ready. This will be canceled if we start work on the - // root again. - root.cancelPendingCommit = schedulePendingCommit( - commitRoot.bind( - null, - root, - workInProgressRootRecoverableErrors, - workInProgressTransitions - ) - ); - return; - } - } // Otherwise, commit immediately. +var RENDER_TIMEOUT_MS = 500; +var workInProgressTransitions = null; - commitRoot( - root, - workInProgressRootRecoverableErrors, - workInProgressTransitions - ); +function resetRenderTimer() { + workInProgressRootRenderTargetTime = now$1() + RENDER_TIMEOUT_MS; } -function isRenderConsistentWithExternalStores(finishedWork) { - // Search the rendered tree for external store reads, and check whether the - // stores were mutated in a concurrent event. Intentionally using an iterative - // loop instead of recursion so we can exit early. - var node = finishedWork; +function getRenderTargetTime() { + return workInProgressRootRenderTargetTime; +} +var hasUncaughtError = false; +var firstUncaughtError = null; +var legacyErrorBoundariesThatAlreadyFailed = null; // Only used when enableProfilerNestedUpdateScheduledHook is true; +var rootDoesHavePassiveEffects = false; +var rootWithPendingPassiveEffects = null; +var pendingPassiveEffectsLanes = NoLanes; +var pendingPassiveProfilerEffects = []; - while (true) { - if (node.flags & StoreConsistency) { - var updateQueue = node.updateQueue; +var NESTED_UPDATE_LIMIT = 50; +var nestedUpdateCount = 0; +var rootWithNestedUpdates = null; +var isFlushingPassiveEffects = false; +var didScheduleUpdateDuringPassiveEffects = false; +var NESTED_PASSIVE_UPDATE_LIMIT = 50; +var nestedPassiveUpdateCount = 0; +var rootWithPassiveNestedUpdates = null; // If two updates are scheduled within the same event, we should treat their +// event times as simultaneous, even if the actual clock time has advanced +// between the first and second call. - if (updateQueue !== null) { - var checks = updateQueue.stores; +var currentEventTime = NoTimestamp; +var currentEventTransitionLane = NoLanes; +var isRunningInsertionEffect = false; +function getWorkInProgressRoot() { + return workInProgressRoot; +} +function getWorkInProgressRootRenderLanes() { + return workInProgressRootRenderLanes; +} +function requestEventTime() { + if ((executionContext & (RenderContext | CommitContext)) !== NoContext) { + // We're inside React, so it's fine to read the actual time. + return now$1(); + } // We're not inside React, so we may be in the middle of a browser event. - if (checks !== null) { - for (var i = 0; i < checks.length; i++) { - var check = checks[i]; - var getSnapshot = check.getSnapshot; - var renderedValue = check.value; + if (currentEventTime !== NoTimestamp) { + // Use the same start time for all updates until we enter React again. + return currentEventTime; + } // This is the first update since React yielded. Compute a new start time. - try { - if (!objectIs(getSnapshot(), renderedValue)) { - // Found an inconsistent store. - return false; - } - } catch (error) { - // If `getSnapshot` throws, return `false`. This will schedule - // a re-render, and the error will be rethrown during render. - return false; - } - } - } - } - } + currentEventTime = now$1(); + return currentEventTime; +} +function requestUpdateLane(fiber) { + // Special cases + var mode = fiber.mode; - var child = node.child; + if ((mode & ConcurrentMode) === NoMode) { + return SyncLane; + } else if ( + (executionContext & RenderContext) !== NoContext && + workInProgressRootRenderLanes !== NoLanes + ) { + // This is a render phase update. These are not officially supported. The + // old behavior is to give this the same "thread" (lanes) as + // whatever is currently rendering. So if you call `setState` on a component + // that happens later in the same render, it will flush. Ideally, we want to + // remove the special case and treat them as if they came from an + // interleaved event. Regardless, this pattern is not officially supported. + // This behavior is only a fallback. The flag only exists until we can roll + // out the setState warning, since existing code might accidentally rely on + // the current behavior. + return pickArbitraryLane(workInProgressRootRenderLanes); + } - if (node.subtreeFlags & StoreConsistency && child !== null) { - child.return = node; - node = child; - continue; - } + var isTransition = requestCurrentTransition() !== NoTransition; - if (node === finishedWork) { - return true; - } + if (isTransition) { + if (ReactCurrentBatchConfig.transition !== null) { + var transition = ReactCurrentBatchConfig.transition; - while (node.sibling === null) { - if (node.return === null || node.return === finishedWork) { - return true; + if (!transition._updatedFibers) { + transition._updatedFibers = new Set(); } - node = node.return; + transition._updatedFibers.add(fiber); + } // The algorithm for assigning an update to a lane should be stable for all + // updates at the same priority within the same event. To do this, the + // inputs to the algorithm must be the same. + // + // The trick we use is to cache the first of each of these inputs within an + // event. Then reset the cached values once we can be sure the event is + // over. Our heuristic for that is whenever we enter a concurrent work loop. + + if (currentEventTransitionLane === NoLane) { + // All transitions within the same event are assigned the same lane. + currentEventTransitionLane = claimNextTransitionLane(); } - node.sibling.return = node.return; - node = node.sibling; - } // Flow doesn't know this is unreachable, but eslint does - // eslint-disable-next-line no-unreachable + return currentEventTransitionLane; + } // Updates originating inside certain React methods, like flushSync, have + // their priority set by tracking it with a context variable. + // + // The opaque type returned by the host config is internally a lane, so we can + // use that directly. + // TODO: Move this type conversion to the event priority module. + + var updateLane = getCurrentUpdatePriority(); + + if (updateLane !== NoLane) { + return updateLane; + } // This update originated outside React. Ask the host environment for an + // appropriate priority, based on the type of event. + // + // The opaque type returned by the host config is internally a lane, so we can + // use that directly. + // TODO: Move this type conversion to the event priority module. - return true; + var eventLane = getCurrentEventPriority(); + return eventLane; } -function markRootSuspended(root, suspendedLanes) { - // When suspending, we should always exclude lanes that were pinged or (more - // rarely, since we try to avoid it) updated during the render phase. - // TODO: Lol maybe there's a better way to factor this besides this - // obnoxiously named function :) - suspendedLanes = removeLanes(suspendedLanes, workInProgressRootPingedLanes); - suspendedLanes = removeLanes( - suspendedLanes, - workInProgressRootInterleavedUpdatedLanes - ); - markRootSuspended$1(root, suspendedLanes); -} // This is the entry point for synchronous tasks that don't go -// through Scheduler - -function performSyncWorkOnRoot(root) { - { - syncNestedUpdateFlag(); - } +function requestRetryLane(fiber) { + // This is a fork of `requestUpdateLane` designed specifically for Suspense + // "retries" — a special update that attempts to flip a Suspense boundary + // from its placeholder state to its primary/resolved state. + // Special cases + var mode = fiber.mode; - if ((executionContext & (RenderContext | CommitContext)) !== NoContext) { - throw new Error("Should not already be working."); + if ((mode & ConcurrentMode) === NoMode) { + return SyncLane; } - flushPassiveEffects(); - var lanes = getNextLanes(root, NoLanes); + return claimNextRetryLane(); +} - if (!includesSyncLane(lanes)) { - // There's no remaining sync work left. - ensureRootIsScheduled(root, now$1()); - return null; +function scheduleUpdateOnFiber(root, fiber, lane, eventTime) { + { + if (isRunningInsertionEffect) { + error("useInsertionEffect must not schedule updates."); + } } - var exitStatus = renderRootSync(root, lanes); - - if (root.tag !== LegacyRoot && exitStatus === RootErrored) { - // If something threw an error, try rendering one more time. We'll render - // synchronously to block concurrent data mutations, and we'll includes - // all pending updates are included. If it still fails after the second - // attempt, we'll give up and commit the resulting tree. - var originallyAttemptedLanes = lanes; - var errorRetryLanes = getLanesToRetrySynchronouslyOnError( - root, - originallyAttemptedLanes - ); - - if (errorRetryLanes !== NoLanes) { - lanes = errorRetryLanes; - exitStatus = recoverFromConcurrentError( - root, - originallyAttemptedLanes, - errorRetryLanes - ); + { + if (isFlushingPassiveEffects) { + didScheduleUpdateDuringPassiveEffects = true; } - } + } // Check if the work loop is currently suspended and waiting for data to + // finish loading. - if (exitStatus === RootFatalErrored) { - var fatalError = workInProgressRootFatalError; + if ( + workInProgressSuspendedReason === SuspendedOnData && + root === workInProgressRoot + ) { + // The incoming update might unblock the current render. Interrupt the + // current attempt and restart from the top. prepareFreshStack(root, NoLanes); - markRootSuspended(root, lanes); - ensureRootIsScheduled(root, now$1()); - throw fatalError; - } + markRootSuspended(root, workInProgressRootRenderLanes); + } // Mark that the root has a pending update. - if (exitStatus === RootDidNotComplete) { - // The render unwound without completing the tree. This happens in special - // cases where need to exit the current render without producing a - // consistent tree or committing. - markRootSuspended(root, lanes); - ensureRootIsScheduled(root, now$1()); - return null; - } // We now have a consistent tree. Because this is a sync render, we - // will commit it even if something suspended. + markRootUpdated(root, lane, eventTime); - var finishedWork = root.current.alternate; - root.finishedWork = finishedWork; - root.finishedLanes = lanes; - commitRoot( - root, - workInProgressRootRecoverableErrors, - workInProgressTransitions - ); // Before exiting, make sure there's a callback scheduled for the next - // pending level. + if ( + (executionContext & RenderContext) !== NoLanes && + root === workInProgressRoot + ) { + // This update was dispatched during the render phase. This is a mistake + // if the update originates from user space (with the exception of local + // hook updates, which are handled differently and don't reach this + // function), but there are some internal React features that use this as + // an implementation detail, like selective hydration. + warnAboutRenderPhaseUpdatesInDEV(fiber); // Track lanes that were updated during the render phase + } else { + // This is a normal update, scheduled from outside the render phase. For + // example, during an input event. + { + if (isDevToolsPresent) { + addFiberToLanesMap(root, fiber, lane); + } + } - ensureRootIsScheduled(root, now$1()); - return null; -} -function getExecutionContext() { - return executionContext; -} -function batchedUpdates$1(fn, a) { - var prevExecutionContext = executionContext; - executionContext |= BatchedContext; + warnIfUpdatesNotWrappedWithActDEV(fiber); - try { - return fn(a); - } finally { - executionContext = prevExecutionContext; // If there were legacy sync updates, flush them at the end of the outer - // most batchedUpdates-like method. + if (root === workInProgressRoot) { + // Received an update to a tree that's in the middle of rendering. Mark + // that there was an interleaved update work on this root. Unless the + // `deferRenderPhaseUpdateToNextBatch` flag is off and this is a render + // phase update. In that case, we don't treat render phase updates as if + // they were interleaved, for backwards compat reasons. + if ((executionContext & RenderContext) === NoContext) { + workInProgressRootInterleavedUpdatedLanes = mergeLanes( + workInProgressRootInterleavedUpdatedLanes, + lane + ); + } + + if (workInProgressRootExitStatus === RootSuspendedWithDelay) { + // The root already suspended with a delay, which means this render + // definitely won't finish. Since we have a new update, let's mark it as + // suspended now, right before marking the incoming update. This has the + // effect of interrupting the current render and switching to the update. + // TODO: Make sure this doesn't override pings that happen while we've + // already started rendering. + markRootSuspended(root, workInProgressRootRenderLanes); + } + } + + ensureRootIsScheduled(root, eventTime); if ( - executionContext === NoContext && // Treat `act` as if it's inside `batchedUpdates`, even in legacy mode. + lane === SyncLane && + executionContext === NoContext && + (fiber.mode & ConcurrentMode) === NoMode && // Treat `act` as if it's inside `batchedUpdates`, even in legacy mode. !ReactCurrentActQueue.isBatchingLegacy ) { + // Flush the synchronous work now, unless we're already working or inside + // a batch. This is intentionally inside scheduleUpdateOnFiber instead of + // scheduleCallbackForFiber to preserve the ability to schedule a callback + // without immediately flushing it. We only do this for user-initiated + // updates, to preserve historical behavior of legacy mode. resetRenderTimer(); flushSyncCallbacksOnlyInLegacyMode(); } } } -// Warning, this opts-out of checking the function body. -// eslint-disable-next-line no-unused-vars -// eslint-disable-next-line no-redeclare -// eslint-disable-next-line no-redeclare - -function flushSync(fn) { - // In legacy mode, we flush pending passive effects at the beginning of the - // next event, not at the end of the previous one. - if ( - rootWithPendingPassiveEffects !== null && - rootWithPendingPassiveEffects.tag === LegacyRoot && - (executionContext & (RenderContext | CommitContext)) === NoContext - ) { - flushPassiveEffects(); - } - - var prevExecutionContext = executionContext; - executionContext |= BatchedContext; - var prevTransition = ReactCurrentBatchConfig.transition; - var previousPriority = getCurrentUpdatePriority(); - - try { - ReactCurrentBatchConfig.transition = null; - setCurrentUpdatePriority(DiscreteEventPriority); - - if (fn) { - return fn(); - } else { - return undefined; - } - } finally { - setCurrentUpdatePriority(previousPriority); - ReactCurrentBatchConfig.transition = prevTransition; - executionContext = prevExecutionContext; // Flush the immediate callbacks that were scheduled during this batch. - // Note that this will happen even if batchedUpdates is higher up - // the stack. - - if ((executionContext & (RenderContext | CommitContext)) === NoContext) { - flushSyncCallbacks(); - } - } -} -// hidden subtree. The stack logic is managed there because that's the only -// place that ever modifies it. Which module it lives in doesn't matter for -// performance because this function will get inlined regardless - -function setRenderLanes(subtreeRenderLanes) { - renderLanes = subtreeRenderLanes; -} -function getRenderLanes() { - return renderLanes; -} - -function resetWorkInProgressStack() { - if (workInProgress === null) return; - var interruptedWork; - - if (workInProgressSuspendedReason === NotSuspended) { - // Normal case. Work-in-progress hasn't started yet. Unwind all - // its parents. - interruptedWork = workInProgress.return; - } else { - // Work-in-progress is in suspended state. Reset the work loop and unwind - // both the suspended fiber and all its parents. - resetSuspendedWorkLoopOnUnwind(); - interruptedWork = workInProgress; - } +function isUnsafeClassRenderPhaseUpdate(fiber) { + // Check if this is a render phase update. Only called by class components, + // which special (deprecated) behavior for UNSAFE_componentWillReceive props. + return ( + // TODO: Remove outdated deferRenderPhaseUpdateToNextBatch experiment. We + // decided not to enable it. + (executionContext & RenderContext) !== NoContext + ); +} // Use this function to schedule a task for a root. There's only one task per +// root; if a task was already scheduled, we'll check to make sure the priority +// of the existing task is the same as the priority of the next level that the +// root has work on. This function is called on every update, and right before +// exiting a task. - while (interruptedWork !== null) { - var current = interruptedWork.alternate; - unwindInterruptedWork(current, interruptedWork); - interruptedWork = interruptedWork.return; - } +function ensureRootIsScheduled(root, currentTime) { + var existingCallbackNode = root.callbackNode; // Check if any lanes are being starved by other work. If so, mark them as + // expired so we know to work on those next. - workInProgress = null; -} + markStarvedLanesAsExpired(root, currentTime); // Determine the next lanes to work on, and their priority. -function prepareFreshStack(root, lanes) { - root.finishedWork = null; - root.finishedLanes = NoLanes; - var timeoutHandle = root.timeoutHandle; + var nextLanes = getNextLanes( + root, + root === workInProgressRoot ? workInProgressRootRenderLanes : NoLanes + ); - if (timeoutHandle !== noTimeout) { - // The root previous suspended and scheduled a timeout to commit a fallback - // state. Now that we have additional work, cancel the timeout. - root.timeoutHandle = noTimeout; // $FlowFixMe Complains noTimeout is not a TimeoutID, despite the check above + if (nextLanes === NoLanes) { + // Special case: There's nothing to work on. + if (existingCallbackNode !== null) { + cancelCallback(existingCallbackNode); + } - cancelTimeout(timeoutHandle); + root.callbackNode = null; + root.callbackPriority = NoLane; + return; + } // If this root is currently suspended and waiting for data to resolve, don't + // schedule a task to render it. We'll either wait for a ping, or wait to + // receive an update. + + if ( + workInProgressSuspendedReason === SuspendedOnData && + workInProgressRoot === root + ) { + root.callbackPriority = NoLane; + root.callbackNode = null; + return; } var cancelPendingCommit = root.cancelPendingCommit; if (cancelPendingCommit !== null) { - root.cancelPendingCommit = null; - cancelPendingCommit(); - } - - resetWorkInProgressStack(); - workInProgressRoot = root; - var rootWorkInProgress = createWorkInProgress(root.current, null); - workInProgress = rootWorkInProgress; - workInProgressRootRenderLanes = renderLanes = lanes; - workInProgressSuspendedReason = NotSuspended; - workInProgressThrownValue = null; - workInProgressRootDidAttachPingListener = false; - workInProgressRootExitStatus = RootInProgress; - workInProgressRootFatalError = null; - workInProgressRootSkippedLanes = NoLanes; - workInProgressRootInterleavedUpdatedLanes = NoLanes; - workInProgressRootPingedLanes = NoLanes; - workInProgressRootConcurrentErrors = null; - workInProgressRootRecoverableErrors = null; - finishQueueingConcurrentUpdates(); - - { - ReactStrictModeWarnings.discardPendingWarnings(); - } - - return rootWorkInProgress; -} - -function resetSuspendedWorkLoopOnUnwind() { - // Reset module-level state that was set during the render phase. - resetContextDependencies(); - resetHooksOnUnwind(); - resetChildReconcilerOnUnwind(); -} + // We should only interrupt a pending commit if the new update + // is urgent. + if (includesOnlyNonUrgentLanes(nextLanes)) { + // The new update is not urgent. Don't interrupt the pending commit. + root.callbackPriority = NoLane; + root.callbackNode = null; + return; + } + } // We use the highest priority lane to represent the priority of the callback. -function handleThrow(root, thrownValue) { - // A component threw an exception. Usually this is because it suspended, but - // it also includes regular program errors. - // - // We're either going to unwind the stack to show a Suspense or error - // boundary, or we're going to replay the component again. Like after a - // promise resolves. - // - // Until we decide whether we're going to unwind or replay, we should preserve - // the current state of the work loop without resetting anything. - // - // If we do decide to unwind the stack, module-level variables will be reset - // in resetSuspendedWorkLoopOnUnwind. - // These should be reset immediately because they're only supposed to be set - // when React is executing user code. - resetHooksAfterThrow(); - resetCurrentFiber(); - ReactCurrentOwner$1.current = null; + var newCallbackPriority = getHighestPriorityLane(nextLanes); // Check if there's an existing task. We may be able to reuse it. - if (thrownValue === SuspenseException) { - // This is a special type of exception used for Suspense. For historical - // reasons, the rest of the Suspense implementation expects the thrown value - // to be a thenable, because before `use` existed that was the (unstable) - // API for suspending. This implementation detail can change later, once we - // deprecate the old API in favor of `use`. - thrownValue = getSuspendedThenable(); - workInProgressSuspendedReason = - shouldRemainOnPreviousScreen() && // Check if there are other pending updates that might possibly unblock this - // component from suspending. This mirrors the check in - // renderDidSuspendDelayIfPossible. We should attempt to unify them somehow. - // TODO: Consider unwinding immediately, using the - // SuspendedOnHydration mechanism. - !includesNonIdleWork(workInProgressRootSkippedLanes) && - !includesNonIdleWork(workInProgressRootInterleavedUpdatedLanes) // Suspend work loop until data resolves - ? SuspendedOnData // Don't suspend work loop, except to check if the data has - : // immediately resolved (i.e. in a microtask). Otherwise, trigger the - // nearest Suspense fallback. - SuspendedOnImmediate; - } else if (thrownValue === SuspenseyCommitException) { - thrownValue = getSuspendedThenable(); - workInProgressSuspendedReason = SuspendedOnInstance; - } else if (thrownValue === SelectiveHydrationException) { - // An update flowed into a dehydrated boundary. Before we can apply the - // update, we need to finish hydrating. Interrupt the work-in-progress - // render so we can restart at the hydration lane. - // - // The ideal implementation would be able to switch contexts without - // unwinding the current stack. - // - // We could name this something more general but as of now it's the only - // case where we think this should happen. - workInProgressSuspendedReason = SuspendedOnHydration; - } else { - // This is a regular error. - var isWakeable = - thrownValue !== null && - typeof thrownValue === "object" && - typeof thrownValue.then === "function"; - workInProgressSuspendedReason = isWakeable // A wakeable object was thrown by a legacy Suspense implementation. - ? // This has slightly different behavior than suspending with `use`. - SuspendedOnDeprecatedThrowPromise // This is a regular error. If something earlier in the component already - : // suspended, we must clear the thenable state to unblock the work loop. - SuspendedOnError; - } + var existingCallbackPriority = root.callbackPriority; - workInProgressThrownValue = thrownValue; - var erroredWork = workInProgress; + if ( + existingCallbackPriority === newCallbackPriority && // Special case related to `act`. If the currently scheduled task is a + // Scheduler task, rather than an `act` task, cancel it and re-scheduled + // on the `act` queue. + !( + ReactCurrentActQueue.current !== null && + existingCallbackNode !== fakeActCallbackNode + ) + ) { + { + // If we're going to re-use an existing task, it needs to exist. + // Assume that discrete update microtasks are non-cancellable and null. + // TODO: Temporary until we confirm this warning is not fired. + if ( + existingCallbackNode == null && + !includesSyncLane(existingCallbackPriority) + ) { + error( + "Expected scheduled callback to exist. This error is likely caused by a bug in React. Please file an issue." + ); + } + } // The priority hasn't changed. We can reuse the existing task. Exit. - if (erroredWork === null) { - // This is a fatal error - workInProgressRootExitStatus = RootFatalErrored; - workInProgressRootFatalError = thrownValue; return; } - if (erroredWork.mode & ProfileMode) { - // Record the time spent rendering before an error was thrown. This - // avoids inaccurate Profiler durations in the case of a - // suspended render. - stopProfilerTimerIfRunningAndRecordDelta(erroredWork, true); - } + if (existingCallbackNode != null) { + // Cancel the existing callback. We'll schedule a new one below. + cancelCallback(existingCallbackNode); + } // Schedule a new callback. - { - markComponentRenderStopped(); + var newCallbackNode; - switch (workInProgressSuspendedReason) { - case SuspendedOnError: { - markComponentErrored( - erroredWork, - thrownValue, - workInProgressRootRenderLanes - ); - break; + if (includesSyncLane(newCallbackPriority)) { + // Special case: Sync React callbacks are scheduled on a special + // internal queue + if (root.tag === LegacyRoot) { + if (ReactCurrentActQueue.isBatchingLegacy !== null) { + ReactCurrentActQueue.didScheduleLegacyUpdate = true; } - case SuspendedOnData: - case SuspendedOnImmediate: - case SuspendedOnDeprecatedThrowPromise: - case SuspendedAndReadyToContinue: { - var wakeable = thrownValue; - markComponentSuspended( - erroredWork, - wakeable, - workInProgressRootRenderLanes - ); - break; - } + scheduleLegacySyncCallback(performSyncWorkOnRoot.bind(null, root)); + } else { + scheduleSyncCallback(performSyncWorkOnRoot.bind(null, root)); } - } -} -function shouldRemainOnPreviousScreen() { - // This is asking whether it's better to suspend the transition and remain - // on the previous screen, versus showing a fallback as soon as possible. It - // takes into account both the priority of render and also whether showing a - // fallback would produce a desirable user experience. - // TODO: Once `use` has fully replaced the `throw promise` pattern, we should - // be able to remove the equivalent check in finishConcurrentRender, and rely - // just on this one. - if (includesOnlyTransitions(workInProgressRootRenderLanes)) { - if (getShellBoundary() === null) { - // We're rendering inside the "shell" of the app. Activating the nearest - // fallback would cause visible content to disappear. It's better to - // suspend the transition and remain on the previous screen. - return true; - } else { - // We're rendering content that wasn't part of the previous screen. - // Rather than block the transition, it's better to show a fallback as - // soon as possible. The appearance of any nested fallbacks will be - // throttled to avoid jank. - return false; + { + // Flush the queue in an Immediate task. + scheduleCallback(ImmediatePriority, flushSyncCallbacks); } - } - var handler = getSuspenseHandler(); + newCallbackNode = null; + } else { + var schedulerPriorityLevel; + + switch (lanesToEventPriority(nextLanes)) { + case DiscreteEventPriority: + schedulerPriorityLevel = ImmediatePriority; + break; + + case ContinuousEventPriority: + schedulerPriorityLevel = UserBlockingPriority; + break; - if (handler === null); - else { - if (includesOnlyRetries(workInProgressRootRenderLanes)) { - // During a retry, we can suspend rendering if the nearest Suspense boundary - // is the boundary of the "shell", because we're guaranteed not to block - // any new content from appearing. - return handler === getShellBoundary(); - } - } // For all other Lanes besides Transitions and Retries, we should not wait - // for the data to load. - // TODO: We should wait during Offscreen prerendering, too. + case DefaultEventPriority: + schedulerPriorityLevel = NormalPriority; + break; - return false; -} + case IdleEventPriority: + schedulerPriorityLevel = IdlePriority; + break; -function pushDispatcher(container) { - var prevDispatcher = ReactCurrentDispatcher.current; - ReactCurrentDispatcher.current = ContextOnlyDispatcher; + default: + schedulerPriorityLevel = NormalPriority; + break; + } - if (prevDispatcher === null) { - // The React isomorphic package does not include a default dispatcher. - // Instead the first renderer will lazily attach one, in order to give - // nicer error messages. - return ContextOnlyDispatcher; - } else { - return prevDispatcher; + newCallbackNode = scheduleCallback( + schedulerPriorityLevel, + performConcurrentWorkOnRoot.bind(null, root) + ); } -} -function popDispatcher(prevDispatcher) { - ReactCurrentDispatcher.current = prevDispatcher; -} + root.callbackPriority = newCallbackPriority; + root.callbackNode = newCallbackNode; +} // This is the entry point for every concurrent task, i.e. anything that +// goes through Scheduler. -function markCommitTimeOfFallback() { - globalMostRecentFallbackTime = now$1(); -} -function markSkippedUpdateLanes(lane) { - workInProgressRootSkippedLanes = mergeLanes( - lane, - workInProgressRootSkippedLanes - ); -} -function renderDidSuspend() { - if (workInProgressRootExitStatus === RootInProgress) { - workInProgressRootExitStatus = RootSuspended; - } -} -function renderDidSuspendDelayIfPossible() { - workInProgressRootExitStatus = RootSuspendedWithDelay; // Check if there are updates that we skipped tree that might have unblocked - // this render. +function performConcurrentWorkOnRoot(root, didTimeout) { + { + resetNestedUpdateFlag(); + } // Since we know we're in a React event, we can clear the current + // event time. The next update will compute a new event time. - if ( - workInProgressRoot !== null && - (includesNonIdleWork(workInProgressRootSkippedLanes) || - includesNonIdleWork(workInProgressRootInterleavedUpdatedLanes)) - ) { - // Mark the current render as suspended so that we switch to working on - // the updates that were skipped. Usually we only suspend at the end of - // the render phase. - // TODO: We should probably always mark the root as suspended immediately - // (inside this function), since by suspending at the end of the render - // phase introduces a potential mistake where we suspend lanes that were - // pinged or updated while we were rendering. - // TODO: Consider unwinding immediately, using the - // SuspendedOnHydration mechanism. - // $FlowFixMe[incompatible-call] need null check workInProgressRoot - markRootSuspended(workInProgressRoot, workInProgressRootRenderLanes); - } -} -function renderDidError(error) { - if (workInProgressRootExitStatus !== RootSuspendedWithDelay) { - workInProgressRootExitStatus = RootErrored; - } + currentEventTime = NoTimestamp; + currentEventTransitionLane = NoLanes; - if (workInProgressRootConcurrentErrors === null) { - workInProgressRootConcurrentErrors = [error]; - } else { - workInProgressRootConcurrentErrors.push(error); - } -} // Called during render to determine if anything has suspended. -// Returns false if we're not sure. + if ((executionContext & (RenderContext | CommitContext)) !== NoContext) { + throw new Error("Should not already be working."); + } // Flush any pending passive effects before deciding which lanes to work on, + // in case they schedule additional work. -function renderHasNotSuspendedYet() { - // If something errored or completed, we can't really be sure, - // so those are false. - return workInProgressRootExitStatus === RootInProgress; -} // TODO: Over time, this function and renderRootConcurrent have become more -// and more similar. Not sure it makes sense to maintain forked paths. Consider -// unifying them again. + var originalCallbackNode = root.callbackNode; + var didFlushPassiveEffects = flushPassiveEffects(); -function renderRootSync(root, lanes) { - var prevExecutionContext = executionContext; - executionContext |= RenderContext; - var prevDispatcher = pushDispatcher(); - // and prepare a fresh one. Otherwise we'll continue where we left off. + if (didFlushPassiveEffects) { + // Something in the passive effect phase may have canceled the current task. + // Check if the task node for this root was changed. + if (root.callbackNode !== originalCallbackNode) { + // The current task was canceled. Exit. We don't need to call + // `ensureRootIsScheduled` because the check above implies either that + // there's a new task, or that there's no remaining work on this root. + return null; + } + } // Determine the next lanes to work on, using the fields stored + // on the root. - if (workInProgressRoot !== root || workInProgressRootRenderLanes !== lanes) { - { - if (isDevToolsPresent) { - var memoizedUpdaters = root.memoizedUpdaters; + var lanes = getNextLanes( + root, + root === workInProgressRoot ? workInProgressRootRenderLanes : NoLanes + ); - if (memoizedUpdaters.size > 0) { - restorePendingUpdaters(root, workInProgressRootRenderLanes); - memoizedUpdaters.clear(); - } // At this point, move Fibers that scheduled the upcoming work from the Map to the Set. - // If we bailout on this work, we'll move them back (like above). - // It's important to move them now in case the work spawns more work at the same priority with different updaters. - // That way we can keep the current update and future updates separate. + if (lanes === NoLanes) { + // Defensive coding. This is never expected to happen. + return null; + } // We disable time-slicing in some cases: if the work has been CPU-bound + // for too long ("expired" work, to prevent starvation), or we're in + // sync-updates-by-default mode. + // TODO: We only check `didTimeout` defensively, to account for a Scheduler + // bug we're still investigating. Once the bug in Scheduler is fixed, + // we can remove this, since we track expiration ourselves. - movePendingFibersToMemoized(root, lanes); + var shouldTimeSlice = + !includesBlockingLane(root, lanes) && + !includesExpiredLane(root, lanes) && + !didTimeout; + var exitStatus = shouldTimeSlice + ? renderRootConcurrent(root, lanes) + : renderRootSync(root, lanes); + + if (exitStatus !== RootInProgress) { + if (exitStatus === RootErrored) { + // If something threw an error, try rendering one more time. We'll + // render synchronously to block concurrent data mutations, and we'll + // includes all pending updates are included. If it still fails after + // the second attempt, we'll give up and commit the resulting tree. + var originallyAttemptedLanes = lanes; + var errorRetryLanes = getLanesToRetrySynchronouslyOnError( + root, + originallyAttemptedLanes + ); + + if (errorRetryLanes !== NoLanes) { + lanes = errorRetryLanes; + exitStatus = recoverFromConcurrentError( + root, + originallyAttemptedLanes, + errorRetryLanes + ); } } - workInProgressTransitions = getTransitionsForLanes(); - prepareFreshStack(root, lanes); - } + if (exitStatus === RootFatalErrored) { + var fatalError = workInProgressRootFatalError; + prepareFreshStack(root, NoLanes); + markRootSuspended(root, lanes); + ensureRootIsScheduled(root, now$1()); + throw fatalError; + } - { - markRenderStarted(lanes); - } + if (exitStatus === RootDidNotComplete) { + // The render unwound without completing the tree. This happens in special + // cases where need to exit the current render without producing a + // consistent tree or committing. + markRootSuspended(root, lanes); + } else { + // The render completed. + // Check if this render may have yielded to a concurrent event, and if so, + // confirm that any newly rendered stores are consistent. + // TODO: It's possible that even a concurrent render may never have yielded + // to the main thread, if it was fast enough, or if it expired. We could + // skip the consistency check in that case, too. + var renderWasConcurrent = !includesBlockingLane(root, lanes); + var finishedWork = root.current.alternate; - outer: do { - try { if ( - workInProgressSuspendedReason !== NotSuspended && - workInProgress !== null + renderWasConcurrent && + !isRenderConsistentWithExternalStores(finishedWork) ) { - // The work loop is suspended. During a synchronous render, we don't - // yield to the main thread. Immediately unwind the stack. This will - // trigger either a fallback or an error boundary. - // TODO: For discrete and "default" updates (anything that's not - // flushSync), we want to wait for the microtasks the flush before - // unwinding. Will probably implement this using renderRootConcurrent, - // or merge renderRootSync and renderRootConcurrent into the same - // function and fork the behavior some other way. - var unitOfWork = workInProgress; - var thrownValue = workInProgressThrownValue; + // A store was mutated in an interleaved event. Render again, + // synchronously, to block further mutations. + exitStatus = renderRootSync(root, lanes); // We need to check again if something threw - switch (workInProgressSuspendedReason) { - case SuspendedOnHydration: { - // Selective hydration. An update flowed into a dehydrated tree. - // Interrupt the current render so the work loop can switch to the - // hydration lane. - resetWorkInProgressStack(); - workInProgressRootExitStatus = RootDidNotComplete; - break outer; - } + if (exitStatus === RootErrored) { + var _originallyAttemptedLanes = lanes; - default: { - // Unwind then continue with the normal work loop. - workInProgressSuspendedReason = NotSuspended; - workInProgressThrownValue = null; - throwAndUnwindWorkLoop(unitOfWork, thrownValue); - break; + var _errorRetryLanes = getLanesToRetrySynchronouslyOnError( + root, + _originallyAttemptedLanes + ); + + if (_errorRetryLanes !== NoLanes) { + lanes = _errorRetryLanes; + exitStatus = recoverFromConcurrentError( + root, + _originallyAttemptedLanes, + _errorRetryLanes + ); // We assume the tree is now consistent because we didn't yield to any + // concurrent events. } } - } - workLoopSync(); - break; - } catch (thrownValue) { - handleThrow(root, thrownValue); + if (exitStatus === RootFatalErrored) { + var _fatalError = workInProgressRootFatalError; + prepareFreshStack(root, NoLanes); + markRootSuspended(root, lanes); + ensureRootIsScheduled(root, now$1()); + throw _fatalError; + } // FIXME: Need to check for RootDidNotComplete again. The factoring here + // isn't ideal. + } // We now have a consistent tree. The next step is either to commit it, + // or, if something suspended, wait to commit it after a timeout. + + root.finishedWork = finishedWork; + root.finishedLanes = lanes; + finishConcurrentRender(root, exitStatus, finishedWork, lanes); } - } while (true); + } - resetContextDependencies(); - executionContext = prevExecutionContext; - popDispatcher(prevDispatcher); + ensureRootIsScheduled(root, now$1()); - if (workInProgress !== null) { - // This is a sync render, so we should have finished the whole tree. - throw new Error( - "Cannot commit an incomplete root. This error is likely caused by a " + - "bug in React. Please file an issue." - ); + if (root.callbackNode === originalCallbackNode) { + // The task node scheduled for this root is the same one that's + // currently executed. Need to return a continuation. + return performConcurrentWorkOnRoot.bind(null, root); } - { - markRenderStopped(); - } // Set this to null to indicate there's no in-progress render. - - workInProgressRoot = null; - workInProgressRootRenderLanes = NoLanes; // It's safe to process the queue now that the render phase is complete. + return null; +} - finishQueueingConcurrentUpdates(); - return workInProgressRootExitStatus; -} // The work loop is an extremely hot path. Tell Closure not to inline it. +function recoverFromConcurrentError( + root, + originallyAttemptedLanes, + errorRetryLanes +) { + // If an error occurred during hydration, discard server response and fall + // back to client side render. + // Before rendering again, save the errors from the previous attempt. + var errorsFromFirstAttempt = workInProgressRootConcurrentErrors; + var wasRootDehydrated = isRootDehydrated(root); -/** @noinline */ + if (wasRootDehydrated) { + // The shell failed to hydrate. Set a flag to force a client rendering + // during the next attempt. To do this, we call prepareFreshStack now + // to create the root work-in-progress fiber. This is a bit weird in terms + // of factoring, because it relies on renderRootSync not calling + // prepareFreshStack again in the call below, which happens because the + // root and lanes haven't changed. + // + // TODO: I think what we should do is set ForceClientRender inside + // throwException, like we do for nested Suspense boundaries. The reason + // it's here instead is so we can switch to the synchronous work loop, too. + // Something to consider for a future refactor. + var rootWorkInProgress = prepareFreshStack(root, errorRetryLanes); + rootWorkInProgress.flags |= ForceClientRender; -function workLoopSync() { - // Perform work without checking if we need to yield between fiber. - while (workInProgress !== null) { - performUnitOfWork(workInProgress); + { + errorHydratingContainer(); + } } -} -function renderRootConcurrent(root, lanes) { - var prevExecutionContext = executionContext; - executionContext |= RenderContext; - var prevDispatcher = pushDispatcher(); - // and prepare a fresh one. Otherwise we'll continue where we left off. + var exitStatus = renderRootSync(root, errorRetryLanes); - if (workInProgressRoot !== root || workInProgressRootRenderLanes !== lanes) { - { - if (isDevToolsPresent) { - var memoizedUpdaters = root.memoizedUpdaters; + if (exitStatus !== RootErrored) { + // Successfully finished rendering on retry + if (workInProgressRootDidAttachPingListener && !wasRootDehydrated) { + // During the synchronous render, we attached additional ping listeners. + // This is highly suggestive of an uncached promise (though it's not the + // only reason this would happen). If it was an uncached promise, then + // it may have masked a downstream error from ocurring without actually + // fixing it. Example: + // + // use(Promise.resolve('uncached')) + // throw new Error('Oops!') + // + // When this happens, there's a conflict between blocking potential + // concurrent data races and unwrapping uncached promise values. We + // have to choose one or the other. Because the data race recovery is + // a last ditch effort, we'll disable it. + root.errorRecoveryDisabledLanes = mergeLanes( + root.errorRecoveryDisabledLanes, + originallyAttemptedLanes + ); // Mark the current render as suspended and force it to restart. Once + // these lanes finish successfully, we'll re-enable the error recovery + // mechanism for subsequent updates. - if (memoizedUpdaters.size > 0) { - restorePendingUpdaters(root, workInProgressRootRenderLanes); - memoizedUpdaters.clear(); - } // At this point, move Fibers that scheduled the upcoming work from the Map to the Set. - // If we bailout on this work, we'll move them back (like above). - // It's important to move them now in case the work spawns more work at the same priority with different updaters. - // That way we can keep the current update and future updates separate. + workInProgressRootInterleavedUpdatedLanes |= originallyAttemptedLanes; + return RootSuspendedWithDelay; + } // The errors from the failed first attempt have been recovered. Add + // them to the collection of recoverable errors. We'll log them in the + // commit phase. - movePendingFibersToMemoized(root, lanes); - } - } + var errorsFromSecondAttempt = workInProgressRootRecoverableErrors; + workInProgressRootRecoverableErrors = errorsFromFirstAttempt; // The errors from the second attempt should be queued after the errors + // from the first attempt, to preserve the causal sequence. - workInProgressTransitions = getTransitionsForLanes(); - resetRenderTimer(); - prepareFreshStack(root, lanes); + if (errorsFromSecondAttempt !== null) { + queueRecoverableErrors(errorsFromSecondAttempt); + } } - { - markRenderStarted(lanes); + return exitStatus; +} + +function queueRecoverableErrors(errors) { + if (workInProgressRootRecoverableErrors === null) { + workInProgressRootRecoverableErrors = errors; + } else { + // $FlowFixMe[method-unbinding] + workInProgressRootRecoverableErrors.push.apply( + workInProgressRootRecoverableErrors, + errors + ); } +} - outer: do { - try { - if ( - workInProgressSuspendedReason !== NotSuspended && - workInProgress !== null - ) { - // The work loop is suspended. We need to either unwind the stack or - // replay the suspended component. - var unitOfWork = workInProgress; - var thrownValue = workInProgressThrownValue; +function finishConcurrentRender(root, exitStatus, finishedWork, lanes) { + switch (exitStatus) { + case RootInProgress: + case RootFatalErrored: { + throw new Error("Root did not complete. This is a bug in React."); + } + // Flow knows about invariant, so it complains if I add a break + // statement, but eslint doesn't know about invariant, so it complains + // if I do. eslint-disable-next-line no-fallthrough - resumeOrUnwind: switch (workInProgressSuspendedReason) { - case SuspendedOnError: { - // Unwind then continue with the normal work loop. - workInProgressSuspendedReason = NotSuspended; - workInProgressThrownValue = null; - throwAndUnwindWorkLoop(unitOfWork, thrownValue); - break; - } + case RootErrored: { + // We should have already attempted to retry this tree. If we reached + // this point, it errored again. Commit it. + commitRootWhenReady( + root, + finishedWork, + workInProgressRootRecoverableErrors, + workInProgressTransitions, + lanes + ); + break; + } - case SuspendedOnData: { - var thenable = thrownValue; + case RootSuspended: { + markRootSuspended(root, lanes); // We have an acceptable loading state. We need to figure out if we + // should immediately commit it or wait a bit. - if (isThenableResolved(thenable)) { - // The data resolved. Try rendering the component again. - workInProgressSuspendedReason = NotSuspended; - workInProgressThrownValue = null; - replaySuspendedUnitOfWork(unitOfWork); - break; - } // The work loop is suspended on data. We should wait for it to - // resolve before continuing to render. - // TODO: Handle the case where the promise resolves synchronously. - // Usually this is handled when we instrument the promise to add a - // `status` field, but if the promise already has a status, we won't - // have added a listener until right here. + if ( + includesOnlyRetries(lanes) && // do not delay if we're inside an act() scope + !shouldForceFlushFallbacksInDEV() + ) { + // This render only included retries, no updates. Throttle committing + // retries so that we don't show too many loading states too quickly. + var msUntilTimeout = + globalMostRecentFallbackTime + FALLBACK_THROTTLE_MS - now$1(); // Don't bother with a very short suspense time. - var onResolution = function () { - // Check if the root is still suspended on this promise. - if ( - workInProgressSuspendedReason === SuspendedOnData && - workInProgressRoot === root - ) { - // Mark the root as ready to continue rendering. - workInProgressSuspendedReason = SuspendedAndReadyToContinue; - } // Ensure the root is scheduled. We should do this even if we're - // currently working on a different root, so that we resume - // rendering later. + if (msUntilTimeout > 10) { + var nextLanes = getNextLanes(root, NoLanes); - ensureRootIsScheduled(root, now$1()); - }; + if (nextLanes !== NoLanes) { + // There's additional work on this root. + break; + } // The render is suspended, it hasn't timed out, and there's no + // lower priority work to do. Instead of committing the fallback + // immediately, wait for more data to arrive. - thenable.then(onResolution, onResolution); - break outer; - } + root.timeoutHandle = scheduleTimeout( + commitRootWhenReady.bind( + null, + root, + finishedWork, + workInProgressRootRecoverableErrors, + workInProgressTransitions, + lanes + ), + msUntilTimeout + ); + break; + } + } // The work expired. Commit immediately. + + commitRootWhenReady( + root, + finishedWork, + workInProgressRootRecoverableErrors, + workInProgressTransitions, + lanes + ); + break; + } - case SuspendedOnImmediate: { - // If this fiber just suspended, it's possible the data is already - // cached. Yield to the main thread to give it a chance to ping. If - // it does, we can retry immediately without unwinding the stack. - workInProgressSuspendedReason = SuspendedAndReadyToContinue; - break outer; - } + case RootSuspendedWithDelay: { + markRootSuspended(root, lanes); - case SuspendedOnInstance: { - workInProgressSuspendedReason = - SuspendedOnInstanceAndReadyToContinue; - break outer; - } + if (includesOnlyTransitions(lanes)) { + // This is a transition, so we should exit without committing a + // placeholder and without scheduling a timeout. Delay indefinitely + // until we receive more data. + break; + } - case SuspendedAndReadyToContinue: { - var _thenable = thrownValue; + if (!shouldForceFlushFallbacksInDEV()) { + // This is not a transition, but we did trigger an avoided state. + // Schedule a placeholder to display after a short delay, using the Just + // Noticeable Difference. + // TODO: Is the JND optimization worth the added complexity? If this is + // the only reason we track the event time, then probably not. + // Consider removing. + var mostRecentEventTime = getMostRecentEventTime(root, lanes); + var eventTimeMs = mostRecentEventTime; + var timeElapsedMs = now$1() - eventTimeMs; - if (isThenableResolved(_thenable)) { - // The data resolved. Try rendering the component again. - workInProgressSuspendedReason = NotSuspended; - workInProgressThrownValue = null; - replaySuspendedUnitOfWork(unitOfWork); - } else { - // Otherwise, unwind then continue with the normal work loop. - workInProgressSuspendedReason = NotSuspended; - workInProgressThrownValue = null; - throwAndUnwindWorkLoop(unitOfWork, thrownValue); - } + var _msUntilTimeout = jnd(timeElapsedMs) - timeElapsedMs; // Don't bother with a very short suspense time. - break; - } + if (_msUntilTimeout > 10) { + // Instead of committing the fallback immediately, wait for more data + // to arrive. + root.timeoutHandle = scheduleTimeout( + commitRootWhenReady.bind( + null, + root, + finishedWork, + workInProgressRootRecoverableErrors, + workInProgressTransitions, + lanes + ), + _msUntilTimeout + ); + break; + } + } // Commit the placeholder. - case SuspendedOnInstanceAndReadyToContinue: { - switch (workInProgress.tag) { - case HostComponent: - case HostHoistable: - case HostSingleton: { - // Before unwinding the stack, check one more time if the - // instance is ready. It may have loaded when React yielded to - // the main thread. - // Assigning this to a constant so Flow knows the binding won't - // be mutated by `preloadInstance`. - var hostFiber = workInProgress; - var type = hostFiber.type; - var props = hostFiber.pendingProps; - var isReady = preloadInstance(type, props); + commitRootWhenReady( + root, + finishedWork, + workInProgressRootRecoverableErrors, + workInProgressTransitions, + lanes + ); + break; + } - if (isReady) { - // The data resolved. Resume the work loop as if nothing - // suspended. Unlike when a user component suspends, we don't - // have to replay anything because the host fiber - // already completed. - workInProgressSuspendedReason = NotSuspended; - workInProgressThrownValue = null; - var sibling = hostFiber.sibling; + case RootCompleted: { + // The work completed. + commitRootWhenReady( + root, + finishedWork, + workInProgressRootRecoverableErrors, + workInProgressTransitions, + lanes + ); + break; + } - if (sibling !== null) { - workInProgress = sibling; - } else { - var returnFiber = hostFiber.return; + default: { + throw new Error("Unknown root exit status."); + } + } +} - if (returnFiber !== null) { - workInProgress = returnFiber; - completeUnitOfWork(returnFiber); - } else { - workInProgress = null; - } - } +function commitRootWhenReady( + root, + finishedWork, + recoverableErrors, + transitions, + lanes +) { + if (includesOnlyNonUrgentLanes(lanes)) { + // suspend. If it's not ready, it will return a callback to subscribe to + // a ready event. - break resumeOrUnwind; - } + var schedulePendingCommit = waitForCommitToBeReady(); - break; - } + if (schedulePendingCommit !== null) { + // NOTE: waitForCommitToBeReady returns a subscribe function so that we + // only allocate a function if the commit isn't ready yet. The other + // pattern would be to always pass a callback to waitForCommitToBeReady. + // Not yet ready to commit. Delay the commit until the renderer notifies + // us that it's ready. This will be canceled if we start work on the + // root again. + root.cancelPendingCommit = schedulePendingCommit( + commitRoot.bind( + null, + root, + workInProgressRootRecoverableErrors, + workInProgressTransitions + ) + ); + return; + } + } // Otherwise, commit immediately. - default: { - // This will fail gracefully but it's not correct, so log a - // warning in dev. - if (true) { - error( - "Unexpected type of fiber triggered a suspensey commit. " + - "This is a bug in React." - ); - } + commitRoot( + root, + workInProgressRootRecoverableErrors, + workInProgressTransitions + ); +} - break; - } - } // Otherwise, unwind then continue with the normal work loop. +function isRenderConsistentWithExternalStores(finishedWork) { + // Search the rendered tree for external store reads, and check whether the + // stores were mutated in a concurrent event. Intentionally using an iterative + // loop instead of recursion so we can exit early. + var node = finishedWork; - workInProgressSuspendedReason = NotSuspended; - workInProgressThrownValue = null; - throwAndUnwindWorkLoop(unitOfWork, thrownValue); - break; - } + while (true) { + if (node.flags & StoreConsistency) { + var updateQueue = node.updateQueue; - case SuspendedOnDeprecatedThrowPromise: { - // Suspended by an old implementation that uses the `throw promise` - // pattern. The newer replaying behavior can cause subtle issues - // like infinite ping loops. So we maintain the old behavior and - // always unwind. - workInProgressSuspendedReason = NotSuspended; - workInProgressThrownValue = null; - throwAndUnwindWorkLoop(unitOfWork, thrownValue); - break; - } + if (updateQueue !== null) { + var checks = updateQueue.stores; - case SuspendedOnHydration: { - // Selective hydration. An update flowed into a dehydrated tree. - // Interrupt the current render so the work loop can switch to the - // hydration lane. - resetWorkInProgressStack(); - workInProgressRootExitStatus = RootDidNotComplete; - break outer; - } + if (checks !== null) { + for (var i = 0; i < checks.length; i++) { + var check = checks[i]; + var getSnapshot = check.getSnapshot; + var renderedValue = check.value; - default: { - throw new Error( - "Unexpected SuspendedReason. This is a bug in React." - ); + try { + if (!objectIs(getSnapshot(), renderedValue)) { + // Found an inconsistent store. + return false; + } + } catch (error) { + // If `getSnapshot` throws, return `false`. This will schedule + // a re-render, and the error will be rethrown during render. + return false; + } } } } + } - if (true && ReactCurrentActQueue.current !== null) { - // `act` special case: If we're inside an `act` scope, don't consult - // `shouldYield`. Always keep working until the render is complete. - // This is not just an optimization: in a unit test environment, we - // can't trust the result of `shouldYield`, because the host I/O is - // likely mocked. - workLoopSync(); - } else { - workLoopConcurrent(); - } + var child = node.child; - break; - } catch (thrownValue) { - handleThrow(root, thrownValue); + if (node.subtreeFlags & StoreConsistency && child !== null) { + child.return = node; + node = child; + continue; + } + + if (node === finishedWork) { + return true; } - } while (true); - resetContextDependencies(); - popDispatcher(prevDispatcher); - executionContext = prevExecutionContext; + while (node.sibling === null) { + if (node.return === null || node.return === finishedWork) { + return true; + } - if (workInProgress !== null) { - // Still work remaining. - { - markRenderYielded(); + node = node.return; } - return RootInProgress; - } else { - // Completed the tree. - { - markRenderStopped(); - } // Set this to null to indicate there's no in-progress render. + node.sibling.return = node.return; + node = node.sibling; + } // Flow doesn't know this is unreachable, but eslint does + // eslint-disable-next-line no-unreachable - workInProgressRoot = null; - workInProgressRootRenderLanes = NoLanes; // It's safe to process the queue now that the render phase is complete. + return true; +} - finishQueueingConcurrentUpdates(); // Return the final exit status. +function markRootSuspended(root, suspendedLanes) { + // When suspending, we should always exclude lanes that were pinged or (more + // rarely, since we try to avoid it) updated during the render phase. + // TODO: Lol maybe there's a better way to factor this besides this + // obnoxiously named function :) + suspendedLanes = removeLanes(suspendedLanes, workInProgressRootPingedLanes); + suspendedLanes = removeLanes( + suspendedLanes, + workInProgressRootInterleavedUpdatedLanes + ); + markRootSuspended$1(root, suspendedLanes); +} // This is the entry point for synchronous tasks that don't go +// through Scheduler - return workInProgressRootExitStatus; +function performSyncWorkOnRoot(root) { + { + syncNestedUpdateFlag(); } -} -/** @noinline */ -function workLoopConcurrent() { - // Perform work until Scheduler asks us to yield - while (workInProgress !== null && !shouldYield()) { - // $FlowFixMe[incompatible-call] found when upgrading Flow - performUnitOfWork(workInProgress); + if ((executionContext & (RenderContext | CommitContext)) !== NoContext) { + throw new Error("Should not already be working."); } -} -function performUnitOfWork(unitOfWork) { - // The current, flushed, state of this fiber is the alternate. Ideally - // nothing should rely on this, but relying on it here means that we don't - // need an additional field on the work in progress. - var current = unitOfWork.alternate; - setCurrentFiber(unitOfWork); - var next; + flushPassiveEffects(); + var lanes = getNextLanes(root, NoLanes); - if ((unitOfWork.mode & ProfileMode) !== NoMode) { - startProfilerTimer(unitOfWork); - next = beginWork(current, unitOfWork, renderLanes); - stopProfilerTimerIfRunningAndRecordDelta(unitOfWork, true); - } else { - next = beginWork(current, unitOfWork, renderLanes); + if (!includesSyncLane(lanes)) { + // There's no remaining sync work left. + ensureRootIsScheduled(root, now$1()); + return null; } - resetCurrentFiber(); - unitOfWork.memoizedProps = unitOfWork.pendingProps; + var exitStatus = renderRootSync(root, lanes); - if (next === null) { - // If this doesn't spawn new work, complete the current work. - completeUnitOfWork(unitOfWork); - } else { - workInProgress = next; + if (root.tag !== LegacyRoot && exitStatus === RootErrored) { + // If something threw an error, try rendering one more time. We'll render + // synchronously to block concurrent data mutations, and we'll includes + // all pending updates are included. If it still fails after the second + // attempt, we'll give up and commit the resulting tree. + var originallyAttemptedLanes = lanes; + var errorRetryLanes = getLanesToRetrySynchronouslyOnError( + root, + originallyAttemptedLanes + ); + + if (errorRetryLanes !== NoLanes) { + lanes = errorRetryLanes; + exitStatus = recoverFromConcurrentError( + root, + originallyAttemptedLanes, + errorRetryLanes + ); + } } - ReactCurrentOwner$1.current = null; + if (exitStatus === RootFatalErrored) { + var fatalError = workInProgressRootFatalError; + prepareFreshStack(root, NoLanes); + markRootSuspended(root, lanes); + ensureRootIsScheduled(root, now$1()); + throw fatalError; + } + + if (exitStatus === RootDidNotComplete) { + // The render unwound without completing the tree. This happens in special + // cases where need to exit the current render without producing a + // consistent tree or committing. + markRootSuspended(root, lanes); + ensureRootIsScheduled(root, now$1()); + return null; + } // We now have a consistent tree. Because this is a sync render, we + // will commit it even if something suspended. + + var finishedWork = root.current.alternate; + root.finishedWork = finishedWork; + root.finishedLanes = lanes; + commitRoot( + root, + workInProgressRootRecoverableErrors, + workInProgressTransitions + ); // Before exiting, make sure there's a callback scheduled for the next + // pending level. + + ensureRootIsScheduled(root, now$1()); + return null; } +function getExecutionContext() { + return executionContext; +} +function batchedUpdates(fn, a) { + var prevExecutionContext = executionContext; + executionContext |= BatchedContext; -function replaySuspendedUnitOfWork(unitOfWork) { - // This is a fork of performUnitOfWork specifcally for replaying a fiber that - // just suspended. - // - var current = unitOfWork.alternate; - setCurrentFiber(unitOfWork); - var next; - setCurrentFiber(unitOfWork); - var isProfilingMode = (unitOfWork.mode & ProfileMode) !== NoMode; + try { + return fn(a); + } finally { + executionContext = prevExecutionContext; // If there were legacy sync updates, flush them at the end of the outer + // most batchedUpdates-like method. - if (isProfilingMode) { - startProfilerTimer(unitOfWork); + if ( + executionContext === NoContext && // Treat `act` as if it's inside `batchedUpdates`, even in legacy mode. + !ReactCurrentActQueue.isBatchingLegacy + ) { + resetRenderTimer(); + flushSyncCallbacksOnlyInLegacyMode(); + } } +} +// Warning, this opts-out of checking the function body. +// eslint-disable-next-line no-unused-vars +// eslint-disable-next-line no-redeclare +// eslint-disable-next-line no-redeclare - switch (unitOfWork.tag) { - case IndeterminateComponent: { - // Because it suspended with `use`, we can assume it's a - // function component. - unitOfWork.tag = FunctionComponent; // Fallthrough to the next branch. +function flushSync(fn) { + // In legacy mode, we flush pending passive effects at the beginning of the + // next event, not at the end of the previous one. + if ( + rootWithPendingPassiveEffects !== null && + rootWithPendingPassiveEffects.tag === LegacyRoot && + (executionContext & (RenderContext | CommitContext)) === NoContext + ) { + flushPassiveEffects(); + } + + var prevExecutionContext = executionContext; + executionContext |= BatchedContext; + var prevTransition = ReactCurrentBatchConfig.transition; + var previousPriority = getCurrentUpdatePriority(); + + try { + ReactCurrentBatchConfig.transition = null; + setCurrentUpdatePriority(DiscreteEventPriority); + + if (fn) { + return fn(); + } else { + return undefined; } - // eslint-disable-next-line no-fallthrough + } finally { + setCurrentUpdatePriority(previousPriority); + ReactCurrentBatchConfig.transition = prevTransition; + executionContext = prevExecutionContext; // Flush the immediate callbacks that were scheduled during this batch. + // Note that this will happen even if batchedUpdates is higher up + // the stack. - case FunctionComponent: - case ForwardRef: { - // Resolve `defaultProps`. This logic is copied from `beginWork`. - // TODO: Consider moving this switch statement into that module. Also, - // could maybe use this as an opportunity to say `use` doesn't work with - // `defaultProps` :) - var Component = unitOfWork.type; - var unresolvedProps = unitOfWork.pendingProps; - var resolvedProps = - unitOfWork.elementType === Component - ? unresolvedProps - : resolveDefaultProps(Component, unresolvedProps); - next = replayFunctionComponent( - current, - unitOfWork, - resolvedProps, - Component, - workInProgressRootRenderLanes - ); - break; + if ((executionContext & (RenderContext | CommitContext)) === NoContext) { + flushSyncCallbacks(); } + } +} +// hidden subtree. The stack logic is managed there because that's the only +// place that ever modifies it. Which module it lives in doesn't matter for +// performance because this function will get inlined regardless + +function setRenderLanes(subtreeRenderLanes) { + renderLanes = subtreeRenderLanes; +} +function getRenderLanes() { + return renderLanes; +} + +function resetWorkInProgressStack() { + if (workInProgress === null) return; + var interruptedWork; + + if (workInProgressSuspendedReason === NotSuspended) { + // Normal case. Work-in-progress hasn't started yet. Unwind all + // its parents. + interruptedWork = workInProgress.return; + } else { + // Work-in-progress is in suspended state. Reset the work loop and unwind + // both the suspended fiber and all its parents. + resetSuspendedWorkLoopOnUnwind(); + interruptedWork = workInProgress; + } + + while (interruptedWork !== null) { + var current = interruptedWork.alternate; + unwindInterruptedWork(current, interruptedWork); + interruptedWork = interruptedWork.return; + } - case SimpleMemoComponent: { - var _Component = unitOfWork.type; - var nextProps = unitOfWork.pendingProps; - next = replayFunctionComponent( - current, - unitOfWork, - nextProps, - _Component, - workInProgressRootRenderLanes - ); - break; - } + workInProgress = null; +} - default: { - // Other types besides function components are reset completely before - // being replayed. Currently this only happens when a Usable type is - // reconciled — the reconciler will suspend. - // - // We reset the fiber back to its original state; however, this isn't - // a full "unwind" because we're going to reuse the promises that were - // reconciled previously. So it's intentional that we don't call - // resetSuspendedWorkLoopOnUnwind here. - unwindInterruptedWork(current, unitOfWork); - unitOfWork = workInProgress = resetWorkInProgress( - unitOfWork, - renderLanes - ); - next = beginWork(current, unitOfWork, renderLanes); - break; - } +function prepareFreshStack(root, lanes) { + root.finishedWork = null; + root.finishedLanes = NoLanes; + var timeoutHandle = root.timeoutHandle; + + if (timeoutHandle !== noTimeout) { + // The root previous suspended and scheduled a timeout to commit a fallback + // state. Now that we have additional work, cancel the timeout. + root.timeoutHandle = noTimeout; // $FlowFixMe Complains noTimeout is not a TimeoutID, despite the check above + + cancelTimeout(timeoutHandle); } - if (isProfilingMode) { - stopProfilerTimerIfRunningAndRecordDelta(unitOfWork, true); - } // The begin phase finished successfully without suspending. Return to the - // normal work loop. + var cancelPendingCommit = root.cancelPendingCommit; - resetCurrentFiber(); - unitOfWork.memoizedProps = unitOfWork.pendingProps; + if (cancelPendingCommit !== null) { + root.cancelPendingCommit = null; + cancelPendingCommit(); + } - if (next === null) { - // If this doesn't spawn new work, complete the current work. - completeUnitOfWork(unitOfWork); - } else { - workInProgress = next; + resetWorkInProgressStack(); + workInProgressRoot = root; + var rootWorkInProgress = createWorkInProgress(root.current, null); + workInProgress = rootWorkInProgress; + workInProgressRootRenderLanes = renderLanes = lanes; + workInProgressSuspendedReason = NotSuspended; + workInProgressThrownValue = null; + workInProgressRootDidAttachPingListener = false; + workInProgressRootExitStatus = RootInProgress; + workInProgressRootFatalError = null; + workInProgressRootSkippedLanes = NoLanes; + workInProgressRootInterleavedUpdatedLanes = NoLanes; + workInProgressRootPingedLanes = NoLanes; + workInProgressRootConcurrentErrors = null; + workInProgressRootRecoverableErrors = null; + finishQueueingConcurrentUpdates(); + + { + ReactStrictModeWarnings.discardPendingWarnings(); } - ReactCurrentOwner$1.current = null; + return rootWorkInProgress; } -function throwAndUnwindWorkLoop(unitOfWork, thrownValue) { - // This is a fork of performUnitOfWork specifcally for unwinding a fiber - // that threw an exception. - // - // Return to the normal work loop. This will unwind the stack, and potentially - // result in showing a fallback. - resetSuspendedWorkLoopOnUnwind(); - var returnFiber = unitOfWork.return; +function resetSuspendedWorkLoopOnUnwind() { + // Reset module-level state that was set during the render phase. + resetContextDependencies(); + resetHooksOnUnwind(); + resetChildReconcilerOnUnwind(); +} - if (returnFiber === null || workInProgressRoot === null) { - // Expected to be working on a non-root fiber. This is a fatal error - // because there's no ancestor that can handle it; the root is - // supposed to capture all errors that weren't caught by an error - // boundary. - workInProgressRootExitStatus = RootFatalErrored; - workInProgressRootFatalError = thrownValue; // Set `workInProgress` to null. This represents advancing to the next - // sibling, or the parent if there are no siblings. But since the root - // has no siblings nor a parent, we set it to null. Usually this is - // handled by `completeUnitOfWork` or `unwindWork`, but since we're - // intentionally not calling those, we need set it here. - // TODO: Consider calling `unwindWork` to pop the contexts. +function handleThrow(root, thrownValue) { + // A component threw an exception. Usually this is because it suspended, but + // it also includes regular program errors. + // + // We're either going to unwind the stack to show a Suspense or error + // boundary, or we're going to replay the component again. Like after a + // promise resolves. + // + // Until we decide whether we're going to unwind or replay, we should preserve + // the current state of the work loop without resetting anything. + // + // If we do decide to unwind the stack, module-level variables will be reset + // in resetSuspendedWorkLoopOnUnwind. + // These should be reset immediately because they're only supposed to be set + // when React is executing user code. + resetHooksAfterThrow(); + resetCurrentFiber(); + ReactCurrentOwner$1.current = null; - workInProgress = null; - return; + if (thrownValue === SuspenseException) { + // This is a special type of exception used for Suspense. For historical + // reasons, the rest of the Suspense implementation expects the thrown value + // to be a thenable, because before `use` existed that was the (unstable) + // API for suspending. This implementation detail can change later, once we + // deprecate the old API in favor of `use`. + thrownValue = getSuspendedThenable(); + workInProgressSuspendedReason = + shouldRemainOnPreviousScreen() && // Check if there are other pending updates that might possibly unblock this + // component from suspending. This mirrors the check in + // renderDidSuspendDelayIfPossible. We should attempt to unify them somehow. + // TODO: Consider unwinding immediately, using the + // SuspendedOnHydration mechanism. + !includesNonIdleWork(workInProgressRootSkippedLanes) && + !includesNonIdleWork(workInProgressRootInterleavedUpdatedLanes) // Suspend work loop until data resolves + ? SuspendedOnData // Don't suspend work loop, except to check if the data has + : // immediately resolved (i.e. in a microtask). Otherwise, trigger the + // nearest Suspense fallback. + SuspendedOnImmediate; + } else if (thrownValue === SuspenseyCommitException) { + thrownValue = getSuspendedThenable(); + workInProgressSuspendedReason = SuspendedOnInstance; + } else if (thrownValue === SelectiveHydrationException) { + // An update flowed into a dehydrated boundary. Before we can apply the + // update, we need to finish hydrating. Interrupt the work-in-progress + // render so we can restart at the hydration lane. + // + // The ideal implementation would be able to switch contexts without + // unwinding the current stack. + // + // We could name this something more general but as of now it's the only + // case where we think this should happen. + workInProgressSuspendedReason = SuspendedOnHydration; + } else { + // This is a regular error. + var isWakeable = + thrownValue !== null && + typeof thrownValue === "object" && + typeof thrownValue.then === "function"; + workInProgressSuspendedReason = isWakeable // A wakeable object was thrown by a legacy Suspense implementation. + ? // This has slightly different behavior than suspending with `use`. + SuspendedOnDeprecatedThrowPromise // This is a regular error. If something earlier in the component already + : // suspended, we must clear the thenable state to unblock the work loop. + SuspendedOnError; } - try { - // Find and mark the nearest Suspense or error boundary that can handle - // this "exception". - throwException( - workInProgressRoot, - returnFiber, - unitOfWork, - thrownValue, - workInProgressRootRenderLanes - ); - } catch (error) { - // We had trouble processing the error. An example of this happening is - // when accessing the `componentDidCatch` property of an error boundary - // throws an error. A weird edge case. There's a regression test for this. - // To prevent an infinite loop, bubble the error up to the next parent. - workInProgress = returnFiber; - throw error; + workInProgressThrownValue = thrownValue; + var erroredWork = workInProgress; + + if (erroredWork === null) { + // This is a fatal error + workInProgressRootExitStatus = RootFatalErrored; + workInProgressRootFatalError = thrownValue; + return; } - if (unitOfWork.flags & Incomplete) { - // Unwind the stack until we reach the nearest boundary. - unwindUnitOfWork(unitOfWork); - } else { - // Although the fiber suspended, we're intentionally going to commit it in - // an inconsistent state. We can do this safely in cases where we know the - // inconsistent tree will be hidden. - // - // This currently only applies to Legacy Suspense implementation, but we may - // port a version of this to concurrent roots, too, when performing a - // synchronous render. Because that will allow us to mutate the tree as we - // go instead of buffering mutations until the end. Though it's unclear if - // this particular path is how that would be implemented. - completeUnitOfWork(unitOfWork); + if (erroredWork.mode & ProfileMode) { + // Record the time spent rendering before an error was thrown. This + // avoids inaccurate Profiler durations in the case of a + // suspended render. + stopProfilerTimerIfRunningAndRecordDelta(erroredWork, true); } -} -function completeUnitOfWork(unitOfWork) { - // Attempt to complete the current unit of work, then move to the next - // sibling. If there are no more siblings, return to the parent fiber. - var completedWork = unitOfWork; + { + markComponentRenderStopped(); - do { - { - { - if ((completedWork.flags & Incomplete) !== NoFlags$1) { - // NOTE: If we re-enable sibling prerendering in some cases, this branch - // is where we would switch to the unwinding path. - error( - "Internal React error: Expected this fiber to be complete, but " + - "it isn't. It should have been unwound. This is a bug in React." - ); - } + switch (workInProgressSuspendedReason) { + case SuspendedOnError: { + markComponentErrored( + erroredWork, + thrownValue, + workInProgressRootRenderLanes + ); + break; } - } // The current, flushed, state of this fiber is the alternate. Ideally - // nothing should rely on this, but relying on it here means that we don't - // need an additional field on the work in progress. - var current = completedWork.alternate; - var returnFiber = completedWork.return; - setCurrentFiber(completedWork); - var next = void 0; + case SuspendedOnData: + case SuspendedOnImmediate: + case SuspendedOnDeprecatedThrowPromise: + case SuspendedAndReadyToContinue: { + var wakeable = thrownValue; + markComponentSuspended( + erroredWork, + wakeable, + workInProgressRootRenderLanes + ); + break; + } + } + } +} - if ((completedWork.mode & ProfileMode) === NoMode) { - next = completeWork(current, completedWork, renderLanes); +function shouldRemainOnPreviousScreen() { + // This is asking whether it's better to suspend the transition and remain + // on the previous screen, versus showing a fallback as soon as possible. It + // takes into account both the priority of render and also whether showing a + // fallback would produce a desirable user experience. + // TODO: Once `use` has fully replaced the `throw promise` pattern, we should + // be able to remove the equivalent check in finishConcurrentRender, and rely + // just on this one. + if (includesOnlyTransitions(workInProgressRootRenderLanes)) { + if (getShellBoundary() === null) { + // We're rendering inside the "shell" of the app. Activating the nearest + // fallback would cause visible content to disappear. It's better to + // suspend the transition and remain on the previous screen. + return true; } else { - startProfilerTimer(completedWork); - next = completeWork(current, completedWork, renderLanes); // Update render duration assuming we didn't error. - - stopProfilerTimerIfRunningAndRecordDelta(completedWork, false); + // We're rendering content that wasn't part of the previous screen. + // Rather than block the transition, it's better to show a fallback as + // soon as possible. The appearance of any nested fallbacks will be + // throttled to avoid jank. + return false; } + } - resetCurrentFiber(); + var handler = getSuspenseHandler(); - if (next !== null) { - // Completing this fiber spawned new work. Work on that next. - workInProgress = next; - return; + if (handler === null); + else { + if (includesOnlyRetries(workInProgressRootRenderLanes)) { + // During a retry, we can suspend rendering if the nearest Suspense boundary + // is the boundary of the "shell", because we're guaranteed not to block + // any new content from appearing. + return handler === getShellBoundary(); } + } // For all other Lanes besides Transitions and Retries, we should not wait + // for the data to load. + // TODO: We should wait during Offscreen prerendering, too. - var siblingFiber = completedWork.sibling; + return false; +} - if (siblingFiber !== null) { - // If there is more work to do in this returnFiber, do that next. - workInProgress = siblingFiber; - return; - } // Otherwise, return to the parent - // $FlowFixMe[incompatible-type] we bail out when we get a null +function pushDispatcher(container) { + var prevDispatcher = ReactCurrentDispatcher.current; + ReactCurrentDispatcher.current = ContextOnlyDispatcher; - completedWork = returnFiber; // Update the next thing we're working on in case something throws. + if (prevDispatcher === null) { + // The React isomorphic package does not include a default dispatcher. + // Instead the first renderer will lazily attach one, in order to give + // nicer error messages. + return ContextOnlyDispatcher; + } else { + return prevDispatcher; + } +} - workInProgress = completedWork; - } while (completedWork !== null); // We've reached the root. +function popDispatcher(prevDispatcher) { + ReactCurrentDispatcher.current = prevDispatcher; +} +function markCommitTimeOfFallback() { + globalMostRecentFallbackTime = now$1(); +} +function markSkippedUpdateLanes(lane) { + workInProgressRootSkippedLanes = mergeLanes( + lane, + workInProgressRootSkippedLanes + ); +} +function renderDidSuspend() { if (workInProgressRootExitStatus === RootInProgress) { - workInProgressRootExitStatus = RootCompleted; + workInProgressRootExitStatus = RootSuspended; } } +function renderDidSuspendDelayIfPossible() { + workInProgressRootExitStatus = RootSuspendedWithDelay; // Check if there are updates that we skipped tree that might have unblocked + // this render. -function unwindUnitOfWork(unitOfWork) { - var incompleteWork = unitOfWork; + if ( + workInProgressRoot !== null && + (includesNonIdleWork(workInProgressRootSkippedLanes) || + includesNonIdleWork(workInProgressRootInterleavedUpdatedLanes)) + ) { + // Mark the current render as suspended so that we switch to working on + // the updates that were skipped. Usually we only suspend at the end of + // the render phase. + // TODO: We should probably always mark the root as suspended immediately + // (inside this function), since by suspending at the end of the render + // phase introduces a potential mistake where we suspend lanes that were + // pinged or updated while we were rendering. + // TODO: Consider unwinding immediately, using the + // SuspendedOnHydration mechanism. + // $FlowFixMe[incompatible-call] need null check workInProgressRoot + markRootSuspended(workInProgressRoot, workInProgressRootRenderLanes); + } +} +function renderDidError(error) { + if (workInProgressRootExitStatus !== RootSuspendedWithDelay) { + workInProgressRootExitStatus = RootErrored; + } - do { - // The current, flushed, state of this fiber is the alternate. Ideally - // nothing should rely on this, but relying on it here means that we don't - // need an additional field on the work in progress. - var current = incompleteWork.alternate; // This fiber did not complete because something threw. Pop values off - // the stack without entering the complete phase. If this is a boundary, - // capture values if possible. + if (workInProgressRootConcurrentErrors === null) { + workInProgressRootConcurrentErrors = [error]; + } else { + workInProgressRootConcurrentErrors.push(error); + } +} // Called during render to determine if anything has suspended. +// Returns false if we're not sure. - var next = unwindWork(current, incompleteWork); // Because this fiber did not complete, don't reset its lanes. +function renderHasNotSuspendedYet() { + // If something errored or completed, we can't really be sure, + // so those are false. + return workInProgressRootExitStatus === RootInProgress; +} // TODO: Over time, this function and renderRootConcurrent have become more +// and more similar. Not sure it makes sense to maintain forked paths. Consider +// unifying them again. - if (next !== null) { - // Found a boundary that can handle this exception. Re-renter the - // begin phase. This branch will return us to the normal work loop. - // - // Since we're restarting, remove anything that is not a host effect - // from the effect tag. - next.flags &= HostEffectMask; - workInProgress = next; - return; - } // Keep unwinding until we reach either a boundary or the root. +function renderRootSync(root, lanes) { + var prevExecutionContext = executionContext; + executionContext |= RenderContext; + var prevDispatcher = pushDispatcher(); + // and prepare a fresh one. Otherwise we'll continue where we left off. - if ((incompleteWork.mode & ProfileMode) !== NoMode) { - // Record the render duration for the fiber that errored. - stopProfilerTimerIfRunningAndRecordDelta(incompleteWork, false); // Include the time spent working on failed children before continuing. + if (workInProgressRoot !== root || workInProgressRootRenderLanes !== lanes) { + { + if (isDevToolsPresent) { + var memoizedUpdaters = root.memoizedUpdaters; - var actualDuration = incompleteWork.actualDuration; - var child = incompleteWork.child; + if (memoizedUpdaters.size > 0) { + restorePendingUpdaters(root, workInProgressRootRenderLanes); + memoizedUpdaters.clear(); + } // At this point, move Fibers that scheduled the upcoming work from the Map to the Set. + // If we bailout on this work, we'll move them back (like above). + // It's important to move them now in case the work spawns more work at the same priority with different updaters. + // That way we can keep the current update and future updates separate. - while (child !== null) { - // $FlowFixMe[unsafe-addition] addition with possible null/undefined value - actualDuration += child.actualDuration; - child = child.sibling; + movePendingFibersToMemoized(root, lanes); } + } - incompleteWork.actualDuration = actualDuration; - } // TODO: Once we stop prerendering siblings, instead of resetting the parent - // of the node being unwound, we should be able to reset node itself as we - // unwind the stack. Saves an additional null check. - - var returnFiber = incompleteWork.return; + workInProgressTransitions = getTransitionsForLanes(); + prepareFreshStack(root, lanes); + } - if (returnFiber !== null) { - // Mark the parent fiber as incomplete and clear its subtree flags. - // TODO: Once we stop prerendering siblings, we may be able to get rid of - // the Incomplete flag because unwinding to the nearest boundary will - // happen synchronously. - returnFiber.flags |= Incomplete; - returnFiber.subtreeFlags = NoFlags$1; - returnFiber.deletions = null; - } - // $FlowFixMe[incompatible-type] we bail out when we get a null + { + markRenderStarted(lanes); + } - incompleteWork = returnFiber; // Update the next thing we're working on in case something throws. + outer: do { + try { + if ( + workInProgressSuspendedReason !== NotSuspended && + workInProgress !== null + ) { + // The work loop is suspended. During a synchronous render, we don't + // yield to the main thread. Immediately unwind the stack. This will + // trigger either a fallback or an error boundary. + // TODO: For discrete and "default" updates (anything that's not + // flushSync), we want to wait for the microtasks the flush before + // unwinding. Will probably implement this using renderRootConcurrent, + // or merge renderRootSync and renderRootConcurrent into the same + // function and fork the behavior some other way. + var unitOfWork = workInProgress; + var thrownValue = workInProgressThrownValue; - workInProgress = incompleteWork; - } while (incompleteWork !== null); // We've unwound all the way to the root. + switch (workInProgressSuspendedReason) { + case SuspendedOnHydration: { + // Selective hydration. An update flowed into a dehydrated tree. + // Interrupt the current render so the work loop can switch to the + // hydration lane. + resetWorkInProgressStack(); + workInProgressRootExitStatus = RootDidNotComplete; + break outer; + } - workInProgressRootExitStatus = RootDidNotComplete; - workInProgress = null; -} + default: { + // Unwind then continue with the normal work loop. + workInProgressSuspendedReason = NotSuspended; + workInProgressThrownValue = null; + throwAndUnwindWorkLoop(unitOfWork, thrownValue); + break; + } + } + } -function commitRoot(root, recoverableErrors, transitions) { - // TODO: This no longer makes any sense. We already wrap the mutation and - // layout phases. Should be able to remove. - var previousUpdateLanePriority = getCurrentUpdatePriority(); - var prevTransition = ReactCurrentBatchConfig.transition; + workLoopSync(); + break; + } catch (thrownValue) { + handleThrow(root, thrownValue); + } + } while (true); - try { - ReactCurrentBatchConfig.transition = null; - setCurrentUpdatePriority(DiscreteEventPriority); - commitRootImpl( - root, - recoverableErrors, - transitions, - previousUpdateLanePriority + resetContextDependencies(); + executionContext = prevExecutionContext; + popDispatcher(prevDispatcher); + + if (workInProgress !== null) { + // This is a sync render, so we should have finished the whole tree. + throw new Error( + "Cannot commit an incomplete root. This error is likely caused by a " + + "bug in React. Please file an issue." ); - } finally { - ReactCurrentBatchConfig.transition = prevTransition; - setCurrentUpdatePriority(previousUpdateLanePriority); } - return null; -} - -function commitRootImpl( - root, - recoverableErrors, - transitions, - renderPriorityLevel -) { - do { - // `flushPassiveEffects` will call `flushSyncUpdateQueue` at the end, which - // means `flushPassiveEffects` will sometimes result in additional - // passive effects. So we need to keep flushing in a loop until there are - // no more pending effects. - // TODO: Might be better if `flushPassiveEffects` did not automatically - // flush synchronous work at the end, to avoid factoring hazards like this. - flushPassiveEffects(); - } while (rootWithPendingPassiveEffects !== null); + { + markRenderStopped(); + } // Set this to null to indicate there's no in-progress render. - flushRenderPhaseStrictModeWarningsInDEV(); + workInProgressRoot = null; + workInProgressRootRenderLanes = NoLanes; // It's safe to process the queue now that the render phase is complete. - if ((executionContext & (RenderContext | CommitContext)) !== NoContext) { - throw new Error("Should not already be working."); - } + finishQueueingConcurrentUpdates(); + return workInProgressRootExitStatus; +} // The work loop is an extremely hot path. Tell Closure not to inline it. - var finishedWork = root.finishedWork; - var lanes = root.finishedLanes; +/** @noinline */ - { - markCommitStarted(lanes); +function workLoopSync() { + // Perform work without checking if we need to yield between fiber. + while (workInProgress !== null) { + performUnitOfWork(workInProgress); } +} - if (finishedWork === null) { - { - markCommitStopped(); - } +function renderRootConcurrent(root, lanes) { + var prevExecutionContext = executionContext; + executionContext |= RenderContext; + var prevDispatcher = pushDispatcher(); + // and prepare a fresh one. Otherwise we'll continue where we left off. - return null; - } else { + if (workInProgressRoot !== root || workInProgressRootRenderLanes !== lanes) { { - if (lanes === NoLanes) { - error( - "root.finishedLanes should not be empty during a commit. This is a " + - "bug in React." - ); + if (isDevToolsPresent) { + var memoizedUpdaters = root.memoizedUpdaters; + + if (memoizedUpdaters.size > 0) { + restorePendingUpdaters(root, workInProgressRootRenderLanes); + memoizedUpdaters.clear(); + } // At this point, move Fibers that scheduled the upcoming work from the Map to the Set. + // If we bailout on this work, we'll move them back (like above). + // It's important to move them now in case the work spawns more work at the same priority with different updaters. + // That way we can keep the current update and future updates separate. + + movePendingFibersToMemoized(root, lanes); } } + + workInProgressTransitions = getTransitionsForLanes(); + resetRenderTimer(); + prepareFreshStack(root, lanes); } - root.finishedWork = null; - root.finishedLanes = NoLanes; + { + markRenderStarted(lanes); + } - if (finishedWork === root.current) { - throw new Error( - "Cannot commit the same tree as before. This error is likely caused by " + - "a bug in React. Please file an issue." - ); - } // commitRoot never returns a continuation; it always finishes synchronously. - // So we can clear these now to allow a new callback to be scheduled. + outer: do { + try { + if ( + workInProgressSuspendedReason !== NotSuspended && + workInProgress !== null + ) { + // The work loop is suspended. We need to either unwind the stack or + // replay the suspended component. + var unitOfWork = workInProgress; + var thrownValue = workInProgressThrownValue; - root.callbackNode = null; - root.callbackPriority = NoLane; - root.cancelPendingCommit = null; // Check which lanes no longer have any work scheduled on them, and mark - // those as finished. + resumeOrUnwind: switch (workInProgressSuspendedReason) { + case SuspendedOnError: { + // Unwind then continue with the normal work loop. + workInProgressSuspendedReason = NotSuspended; + workInProgressThrownValue = null; + throwAndUnwindWorkLoop(unitOfWork, thrownValue); + break; + } - var remainingLanes = mergeLanes(finishedWork.lanes, finishedWork.childLanes); // Make sure to account for lanes that were updated by a concurrent event - // during the render phase; don't mark them as finished. + case SuspendedOnData: { + var thenable = thrownValue; - var concurrentlyUpdatedLanes = getConcurrentlyUpdatedLanes(); - remainingLanes = mergeLanes(remainingLanes, concurrentlyUpdatedLanes); - markRootFinished(root, remainingLanes); + if (isThenableResolved(thenable)) { + // The data resolved. Try rendering the component again. + workInProgressSuspendedReason = NotSuspended; + workInProgressThrownValue = null; + replaySuspendedUnitOfWork(unitOfWork); + break; + } // The work loop is suspended on data. We should wait for it to + // resolve before continuing to render. + // TODO: Handle the case where the promise resolves synchronously. + // Usually this is handled when we instrument the promise to add a + // `status` field, but if the promise already has a status, we won't + // have added a listener until right here. - if (root === workInProgressRoot) { - // We can reset these now that they are finished. - workInProgressRoot = null; - workInProgress = null; - workInProgressRootRenderLanes = NoLanes; - } // If there are pending passive effects, schedule a callback to process them. - // Do this as early as possible, so it is queued before anything else that - // might get scheduled in the commit phase. (See #16714.) - // TODO: Delete all other places that schedule the passive effect callback - // They're redundant. + var onResolution = function () { + // Check if the root is still suspended on this promise. + if ( + workInProgressSuspendedReason === SuspendedOnData && + workInProgressRoot === root + ) { + // Mark the root as ready to continue rendering. + workInProgressSuspendedReason = SuspendedAndReadyToContinue; + } // Ensure the root is scheduled. We should do this even if we're + // currently working on a different root, so that we resume + // rendering later. - if ( - (finishedWork.subtreeFlags & PassiveMask) !== NoFlags$1 || - (finishedWork.flags & PassiveMask) !== NoFlags$1 - ) { - if (!rootDoesHavePassiveEffects) { - rootDoesHavePassiveEffects = true; - scheduleCallback(NormalPriority, function () { - flushPassiveEffects(); // This render triggered passive effects: release the root cache pool - // *after* passive effects fire to avoid freeing a cache pool that may - // be referenced by a node in the tree (HostRoot, Cache boundary etc) + ensureRootIsScheduled(root, now$1()); + }; - return null; - }); - } - } // Check if there are any effects in the whole tree. - // TODO: This is left over from the effect list implementation, where we had - // to check for the existence of `firstEffect` to satisfy Flow. I think the - // only other reason this optimization exists is because it affects profiling. - // Reconsider whether this is necessary. + thenable.then(onResolution, onResolution); + break outer; + } - var subtreeHasEffects = - (finishedWork.subtreeFlags & - (BeforeMutationMask | MutationMask | LayoutMask | PassiveMask)) !== - NoFlags$1; - var rootHasEffect = - (finishedWork.flags & - (BeforeMutationMask | MutationMask | LayoutMask | PassiveMask)) !== - NoFlags$1; + case SuspendedOnImmediate: { + // If this fiber just suspended, it's possible the data is already + // cached. Yield to the main thread to give it a chance to ping. If + // it does, we can retry immediately without unwinding the stack. + workInProgressSuspendedReason = SuspendedAndReadyToContinue; + break outer; + } + + case SuspendedOnInstance: { + workInProgressSuspendedReason = + SuspendedOnInstanceAndReadyToContinue; + break outer; + } + + case SuspendedAndReadyToContinue: { + var _thenable = thrownValue; + + if (isThenableResolved(_thenable)) { + // The data resolved. Try rendering the component again. + workInProgressSuspendedReason = NotSuspended; + workInProgressThrownValue = null; + replaySuspendedUnitOfWork(unitOfWork); + } else { + // Otherwise, unwind then continue with the normal work loop. + workInProgressSuspendedReason = NotSuspended; + workInProgressThrownValue = null; + throwAndUnwindWorkLoop(unitOfWork, thrownValue); + } + + break; + } + + case SuspendedOnInstanceAndReadyToContinue: { + switch (workInProgress.tag) { + case HostComponent: + case HostHoistable: + case HostSingleton: { + // Before unwinding the stack, check one more time if the + // instance is ready. It may have loaded when React yielded to + // the main thread. + // Assigning this to a constant so Flow knows the binding won't + // be mutated by `preloadInstance`. + var hostFiber = workInProgress; + var type = hostFiber.type; + var props = hostFiber.pendingProps; + var isReady = preloadInstance(type, props); + + if (isReady) { + // The data resolved. Resume the work loop as if nothing + // suspended. Unlike when a user component suspends, we don't + // have to replay anything because the host fiber + // already completed. + workInProgressSuspendedReason = NotSuspended; + workInProgressThrownValue = null; + var sibling = hostFiber.sibling; + + if (sibling !== null) { + workInProgress = sibling; + } else { + var returnFiber = hostFiber.return; + + if (returnFiber !== null) { + workInProgress = returnFiber; + completeUnitOfWork(returnFiber); + } else { + workInProgress = null; + } + } + + break resumeOrUnwind; + } - if (subtreeHasEffects || rootHasEffect) { - var prevTransition = ReactCurrentBatchConfig.transition; - ReactCurrentBatchConfig.transition = null; - var previousPriority = getCurrentUpdatePriority(); - setCurrentUpdatePriority(DiscreteEventPriority); - var prevExecutionContext = executionContext; - executionContext |= CommitContext; // Reset this to null before calling lifecycles + break; + } - ReactCurrentOwner$1.current = null; // The commit phase is broken into several sub-phases. We do a separate pass - // of the effect list for each phase: all mutation effects come before all - // layout effects, and so on. - // The first phase a "before mutation" phase. We use this phase to read the - // state of the host tree right before we mutate it. This is where - // getSnapshotBeforeUpdate is called. + default: { + // This will fail gracefully but it's not correct, so log a + // warning in dev. + if (true) { + error( + "Unexpected type of fiber triggered a suspensey commit. " + + "This is a bug in React." + ); + } - commitBeforeMutationEffects(root, finishedWork); + break; + } + } // Otherwise, unwind then continue with the normal work loop. - { - // Mark the current commit time to be shared by all Profilers in this - // batch. This enables them to be grouped later. - recordCommitTime(); - } + workInProgressSuspendedReason = NotSuspended; + workInProgressThrownValue = null; + throwAndUnwindWorkLoop(unitOfWork, thrownValue); + break; + } - commitMutationEffects(root, finishedWork, lanes); - // the mutation phase, so that the previous tree is still current during - // componentWillUnmount, but before the layout phase, so that the finished - // work is current during componentDidMount/Update. + case SuspendedOnDeprecatedThrowPromise: { + // Suspended by an old implementation that uses the `throw promise` + // pattern. The newer replaying behavior can cause subtle issues + // like infinite ping loops. So we maintain the old behavior and + // always unwind. + workInProgressSuspendedReason = NotSuspended; + workInProgressThrownValue = null; + throwAndUnwindWorkLoop(unitOfWork, thrownValue); + break; + } - root.current = finishedWork; // The next phase is the layout phase, where we call effects that read + case SuspendedOnHydration: { + // Selective hydration. An update flowed into a dehydrated tree. + // Interrupt the current render so the work loop can switch to the + // hydration lane. + resetWorkInProgressStack(); + workInProgressRootExitStatus = RootDidNotComplete; + break outer; + } - { - markLayoutEffectsStarted(lanes); - } + default: { + throw new Error( + "Unexpected SuspendedReason. This is a bug in React." + ); + } + } + } - commitLayoutEffects(finishedWork, root, lanes); + if (true && ReactCurrentActQueue.current !== null) { + // `act` special case: If we're inside an `act` scope, don't consult + // `shouldYield`. Always keep working until the render is complete. + // This is not just an optimization: in a unit test environment, we + // can't trust the result of `shouldYield`, because the host I/O is + // likely mocked. + workLoopSync(); + } else { + workLoopConcurrent(); + } - { - markLayoutEffectsStopped(); + break; + } catch (thrownValue) { + handleThrow(root, thrownValue); } - // opportunity to paint. - - requestPaint(); - executionContext = prevExecutionContext; // Reset the priority to the previous non-sync value. + } while (true); - setCurrentUpdatePriority(previousPriority); - ReactCurrentBatchConfig.transition = prevTransition; - } else { - // No effects. - root.current = finishedWork; // Measure these anyway so the flamegraph explicitly shows that there were - // no effects. - // TODO: Maybe there's a better way to report this. + resetContextDependencies(); + popDispatcher(prevDispatcher); + executionContext = prevExecutionContext; + if (workInProgress !== null) { + // Still work remaining. { - recordCommitTime(); + markRenderYielded(); } - } - - var rootDidHavePassiveEffects = rootDoesHavePassiveEffects; - if (rootDoesHavePassiveEffects) { - // This commit has passive effects. Stash a reference to them. But don't - // schedule a callback until after flushing layout work. - rootDoesHavePassiveEffects = false; - rootWithPendingPassiveEffects = root; - pendingPassiveEffectsLanes = lanes; + return RootInProgress; } else { + // Completed the tree. { - nestedPassiveUpdateCount = 0; - rootWithPassiveNestedUpdates = null; - } - } // Read this again, since an effect might have updated it + markRenderStopped(); + } // Set this to null to indicate there's no in-progress render. - remainingLanes = root.pendingLanes; // Check if there's remaining work on this root - // TODO: This is part of the `componentDidCatch` implementation. Its purpose - // is to detect whether something might have called setState inside - // `componentDidCatch`. The mechanism is known to be flawed because `setState` - // inside `componentDidCatch` is itself flawed — that's why we recommend - // `getDerivedStateFromError` instead. However, it could be improved by - // checking if remainingLanes includes Sync work, instead of whether there's - // any work remaining at all (which would also include stuff like Suspense - // retries or transitions). It's been like this for a while, though, so fixing - // it probably isn't that urgent. + workInProgressRoot = null; + workInProgressRootRenderLanes = NoLanes; // It's safe to process the queue now that the render phase is complete. - if (remainingLanes === NoLanes) { - // If there's no remaining work, we can clear the set of already failed - // error boundaries. - legacyErrorBoundariesThatAlreadyFailed = null; - } + finishQueueingConcurrentUpdates(); // Return the final exit status. - { - if (!rootDidHavePassiveEffects) { - commitDoubleInvokeEffectsInDEV(root, false); - } + return workInProgressRootExitStatus; } +} +/** @noinline */ - onCommitRoot(finishedWork.stateNode, renderPriorityLevel); - - { - if (isDevToolsPresent) { - root.memoizedUpdaters.clear(); - } +function workLoopConcurrent() { + // Perform work until Scheduler asks us to yield + while (workInProgress !== null && !shouldYield()) { + // $FlowFixMe[incompatible-call] found when upgrading Flow + performUnitOfWork(workInProgress); } - // additional work on this root is scheduled. - - ensureRootIsScheduled(root, now$1()); +} - if (recoverableErrors !== null) { - // There were errors during this render, but recovered from them without - // needing to surface it to the UI. We log them here. - var onRecoverableError = root.onRecoverableError; +function performUnitOfWork(unitOfWork) { + // The current, flushed, state of this fiber is the alternate. Ideally + // nothing should rely on this, but relying on it here means that we don't + // need an additional field on the work in progress. + var current = unitOfWork.alternate; + setCurrentFiber(unitOfWork); + var next; - for (var i = 0; i < recoverableErrors.length; i++) { - var recoverableError = recoverableErrors[i]; - var errorInfo = makeErrorInfo( - recoverableError.digest, - recoverableError.stack - ); - onRecoverableError(recoverableError.value, errorInfo); - } + if ((unitOfWork.mode & ProfileMode) !== NoMode) { + startProfilerTimer(unitOfWork); + next = beginWork(current, unitOfWork, renderLanes); + stopProfilerTimerIfRunningAndRecordDelta(unitOfWork, true); + } else { + next = beginWork(current, unitOfWork, renderLanes); } - if (hasUncaughtError) { - hasUncaughtError = false; - var error$1 = firstUncaughtError; - firstUncaughtError = null; - throw error$1; - } // If the passive effects are the result of a discrete render, flush them - // synchronously at the end of the current task so that the result is - // immediately observable. Otherwise, we assume that they are not - // order-dependent and do not need to be observed by external systems, so we - // can wait until after paint. - // TODO: We can optimize this by not scheduling the callback earlier. Since we - // currently schedule the callback in multiple places, will wait until those - // are consolidated. - - if (includesSyncLane(pendingPassiveEffectsLanes) && root.tag !== LegacyRoot) { - flushPassiveEffects(); - } // Read this again, since a passive effect might have updated it - - remainingLanes = root.pendingLanes; - - if (includesSyncLane(remainingLanes)) { - { - markNestedUpdateScheduled(); - } // Count the number of times the root synchronously re-renders without - // finishing. If there are too many, it indicates an infinite update loop. + resetCurrentFiber(); + unitOfWork.memoizedProps = unitOfWork.pendingProps; - if (root === rootWithNestedUpdates) { - nestedUpdateCount++; - } else { - nestedUpdateCount = 0; - rootWithNestedUpdates = root; - } + if (next === null) { + // If this doesn't spawn new work, complete the current work. + completeUnitOfWork(unitOfWork); } else { - nestedUpdateCount = 0; - } // If layout work was scheduled, flush it now. - - flushSyncCallbacks(); - - { - markCommitStopped(); + workInProgress = next; } - return null; + ReactCurrentOwner$1.current = null; } -function makeErrorInfo(digest, componentStack) { - { - var errorInfo = { - componentStack: componentStack, - digest: digest - }; - Object.defineProperty(errorInfo, "digest", { - configurable: false, - enumerable: true, - get: function () { - error( - 'You are accessing "digest" from the errorInfo object passed to onRecoverableError.' + - " This property is deprecated and will be removed in a future version of React." + - " To access the digest of an Error look for this property on the Error instance itself." - ); +function replaySuspendedUnitOfWork(unitOfWork) { + // This is a fork of performUnitOfWork specifcally for replaying a fiber that + // just suspended. + // + var current = unitOfWork.alternate; + setCurrentFiber(unitOfWork); + var next; + setCurrentFiber(unitOfWork); + var isProfilingMode = (unitOfWork.mode & ProfileMode) !== NoMode; - return digest; - } - }); - return errorInfo; + if (isProfilingMode) { + startProfilerTimer(unitOfWork); } -} -function flushPassiveEffects() { - // Returns whether passive effects were flushed. - // TODO: Combine this check with the one in flushPassiveEFfectsImpl. We should - // probably just combine the two functions. I believe they were only separate - // in the first place because we used to wrap it with - // `Scheduler.runWithPriority`, which accepts a function. But now we track the - // priority within React itself, so we can mutate the variable directly. - if (rootWithPendingPassiveEffects !== null) { - var renderPriority = lanesToEventPriority(pendingPassiveEffectsLanes); - var priority = lowerEventPriority(DefaultEventPriority, renderPriority); - var prevTransition = ReactCurrentBatchConfig.transition; - var previousPriority = getCurrentUpdatePriority(); + switch (unitOfWork.tag) { + case IndeterminateComponent: { + // Because it suspended with `use`, we can assume it's a + // function component. + unitOfWork.tag = FunctionComponent; // Fallthrough to the next branch. + } + // eslint-disable-next-line no-fallthrough - try { - ReactCurrentBatchConfig.transition = null; - setCurrentUpdatePriority(priority); - return flushPassiveEffectsImpl(); - } finally { - setCurrentUpdatePriority(previousPriority); - ReactCurrentBatchConfig.transition = prevTransition; // Once passive effects have run for the tree - giving components a + case FunctionComponent: + case ForwardRef: { + // Resolve `defaultProps`. This logic is copied from `beginWork`. + // TODO: Consider moving this switch statement into that module. Also, + // could maybe use this as an opportunity to say `use` doesn't work with + // `defaultProps` :) + var Component = unitOfWork.type; + var unresolvedProps = unitOfWork.pendingProps; + var resolvedProps = + unitOfWork.elementType === Component + ? unresolvedProps + : resolveDefaultProps(Component, unresolvedProps); + next = replayFunctionComponent( + current, + unitOfWork, + resolvedProps, + Component, + workInProgressRootRenderLanes + ); + break; } - } - return false; -} -function enqueuePendingPassiveProfilerEffect(fiber) { - { - pendingPassiveProfilerEffects.push(fiber); + case SimpleMemoComponent: { + var _Component = unitOfWork.type; + var nextProps = unitOfWork.pendingProps; + next = replayFunctionComponent( + current, + unitOfWork, + nextProps, + _Component, + workInProgressRootRenderLanes + ); + break; + } - if (!rootDoesHavePassiveEffects) { - rootDoesHavePassiveEffects = true; - scheduleCallback(NormalPriority, function () { - flushPassiveEffects(); - return null; - }); + default: { + // Other types besides function components are reset completely before + // being replayed. Currently this only happens when a Usable type is + // reconciled — the reconciler will suspend. + // + // We reset the fiber back to its original state; however, this isn't + // a full "unwind" because we're going to reuse the promises that were + // reconciled previously. So it's intentional that we don't call + // resetSuspendedWorkLoopOnUnwind here. + unwindInterruptedWork(current, unitOfWork); + unitOfWork = workInProgress = resetWorkInProgress( + unitOfWork, + renderLanes + ); + next = beginWork(current, unitOfWork, renderLanes); + break; } } -} - -function flushPassiveEffectsImpl() { - if (rootWithPendingPassiveEffects === null) { - return false; - } // Cache and clear the transitions flag - var root = rootWithPendingPassiveEffects; - var lanes = pendingPassiveEffectsLanes; - rootWithPendingPassiveEffects = null; // TODO: This is sometimes out of sync with rootWithPendingPassiveEffects. - // Figure out why and fix it. It's not causing any known issues (probably - // because it's only used for profiling), but it's a refactor hazard. - pendingPassiveEffectsLanes = NoLanes; + if (isProfilingMode) { + stopProfilerTimerIfRunningAndRecordDelta(unitOfWork, true); + } // The begin phase finished successfully without suspending. Return to the + // normal work loop. - if ((executionContext & (RenderContext | CommitContext)) !== NoContext) { - throw new Error("Cannot flush passive effects while already rendering."); - } + resetCurrentFiber(); + unitOfWork.memoizedProps = unitOfWork.pendingProps; - { - isFlushingPassiveEffects = true; - didScheduleUpdateDuringPassiveEffects = false; + if (next === null) { + // If this doesn't spawn new work, complete the current work. + completeUnitOfWork(unitOfWork); + } else { + workInProgress = next; } - { - markPassiveEffectsStarted(lanes); - } + ReactCurrentOwner$1.current = null; +} - var prevExecutionContext = executionContext; - executionContext |= CommitContext; - commitPassiveUnmountEffects(root.current); - commitPassiveMountEffects(root, root.current); // TODO: Move to commitPassiveMountEffects +function throwAndUnwindWorkLoop(unitOfWork, thrownValue) { + // This is a fork of performUnitOfWork specifcally for unwinding a fiber + // that threw an exception. + // + // Return to the normal work loop. This will unwind the stack, and potentially + // result in showing a fallback. + resetSuspendedWorkLoopOnUnwind(); + var returnFiber = unitOfWork.return; - { - var profilerEffects = pendingPassiveProfilerEffects; - pendingPassiveProfilerEffects = []; + if (returnFiber === null || workInProgressRoot === null) { + // Expected to be working on a non-root fiber. This is a fatal error + // because there's no ancestor that can handle it; the root is + // supposed to capture all errors that weren't caught by an error + // boundary. + workInProgressRootExitStatus = RootFatalErrored; + workInProgressRootFatalError = thrownValue; // Set `workInProgress` to null. This represents advancing to the next + // sibling, or the parent if there are no siblings. But since the root + // has no siblings nor a parent, we set it to null. Usually this is + // handled by `completeUnitOfWork` or `unwindWork`, but since we're + // intentionally not calling those, we need set it here. + // TODO: Consider calling `unwindWork` to pop the contexts. - for (var i = 0; i < profilerEffects.length; i++) { - var fiber = profilerEffects[i]; - commitPassiveEffectDurations(root, fiber); - } + workInProgress = null; + return; } - { - markPassiveEffectsStopped(); + try { + // Find and mark the nearest Suspense or error boundary that can handle + // this "exception". + throwException( + workInProgressRoot, + returnFiber, + unitOfWork, + thrownValue, + workInProgressRootRenderLanes + ); + } catch (error) { + // We had trouble processing the error. An example of this happening is + // when accessing the `componentDidCatch` property of an error boundary + // throws an error. A weird edge case. There's a regression test for this. + // To prevent an infinite loop, bubble the error up to the next parent. + workInProgress = returnFiber; + throw error; } - { - commitDoubleInvokeEffectsInDEV(root, true); + if (unitOfWork.flags & Incomplete) { + // Unwind the stack until we reach the nearest boundary. + unwindUnitOfWork(unitOfWork); + } else { + // Although the fiber suspended, we're intentionally going to commit it in + // an inconsistent state. We can do this safely in cases where we know the + // inconsistent tree will be hidden. + // + // This currently only applies to Legacy Suspense implementation, but we may + // port a version of this to concurrent roots, too, when performing a + // synchronous render. Because that will allow us to mutate the tree as we + // go instead of buffering mutations until the end. Though it's unclear if + // this particular path is how that would be implemented. + completeUnitOfWork(unitOfWork); } +} - executionContext = prevExecutionContext; - flushSyncCallbacks(); +function completeUnitOfWork(unitOfWork) { + // Attempt to complete the current unit of work, then move to the next + // sibling. If there are no more siblings, return to the parent fiber. + var completedWork = unitOfWork; - { - // If additional passive effects were scheduled, increment a counter. If this - // exceeds the limit, we'll fire a warning. - if (didScheduleUpdateDuringPassiveEffects) { - if (root === rootWithPassiveNestedUpdates) { - nestedPassiveUpdateCount++; - } else { - nestedPassiveUpdateCount = 0; - rootWithPassiveNestedUpdates = root; + do { + { + { + if ((completedWork.flags & Incomplete) !== NoFlags$1) { + // NOTE: If we re-enable sibling prerendering in some cases, this branch + // is where we would switch to the unwinding path. + error( + "Internal React error: Expected this fiber to be complete, but " + + "it isn't. It should have been unwound. This is a bug in React." + ); + } } - } else { - nestedPassiveUpdateCount = 0; - } + } // The current, flushed, state of this fiber is the alternate. Ideally + // nothing should rely on this, but relying on it here means that we don't + // need an additional field on the work in progress. - isFlushingPassiveEffects = false; - didScheduleUpdateDuringPassiveEffects = false; - } // TODO: Move to commitPassiveMountEffects + var current = completedWork.alternate; + var returnFiber = completedWork.return; + setCurrentFiber(completedWork); + var next = void 0; - onPostCommitRoot(root); + if ((completedWork.mode & ProfileMode) === NoMode) { + next = completeWork(current, completedWork, renderLanes); + } else { + startProfilerTimer(completedWork); + next = completeWork(current, completedWork, renderLanes); // Update render duration assuming we didn't error. - { - var stateNode = root.current.stateNode; - stateNode.effectDuration = 0; - stateNode.passiveEffectDuration = 0; - } + stopProfilerTimerIfRunningAndRecordDelta(completedWork, false); + } - return true; -} + resetCurrentFiber(); + + if (next !== null) { + // Completing this fiber spawned new work. Work on that next. + workInProgress = next; + return; + } -function isAlreadyFailedLegacyErrorBoundary(instance) { - return ( - legacyErrorBoundariesThatAlreadyFailed !== null && - legacyErrorBoundariesThatAlreadyFailed.has(instance) - ); -} -function markLegacyErrorBoundaryAsFailed(instance) { - if (legacyErrorBoundariesThatAlreadyFailed === null) { - legacyErrorBoundariesThatAlreadyFailed = new Set([instance]); - } else { - legacyErrorBoundariesThatAlreadyFailed.add(instance); - } -} + var siblingFiber = completedWork.sibling; -function prepareToThrowUncaughtError(error) { - if (!hasUncaughtError) { - hasUncaughtError = true; - firstUncaughtError = error; - } -} + if (siblingFiber !== null) { + // If there is more work to do in this returnFiber, do that next. + workInProgress = siblingFiber; + return; + } // Otherwise, return to the parent + // $FlowFixMe[incompatible-type] we bail out when we get a null -var onUncaughtError = prepareToThrowUncaughtError; + completedWork = returnFiber; // Update the next thing we're working on in case something throws. -function captureCommitPhaseErrorOnRoot(rootFiber, sourceFiber, error) { - var errorInfo = createCapturedValueAtFiber(error, sourceFiber); - var update = createRootErrorUpdate(rootFiber, errorInfo, SyncLane); - var root = enqueueUpdate(rootFiber, update, SyncLane); - var eventTime = requestEventTime(); + workInProgress = completedWork; + } while (completedWork !== null); // We've reached the root. - if (root !== null) { - markRootUpdated(root, SyncLane, eventTime); - ensureRootIsScheduled(root, eventTime); + if (workInProgressRootExitStatus === RootInProgress) { + workInProgressRootExitStatus = RootCompleted; } } -function captureCommitPhaseError(sourceFiber, nearestMountedAncestor, error$1) { - { - reportUncaughtErrorInDEV(error$1); - setIsRunningInsertionEffect(false); - } - - if (sourceFiber.tag === HostRoot) { - // Error was thrown at the root. There is no parent, so the root - // itself should capture it. - captureCommitPhaseErrorOnRoot(sourceFiber, sourceFiber, error$1); - return; - } +function unwindUnitOfWork(unitOfWork) { + var incompleteWork = unitOfWork; - var fiber = null; + do { + // The current, flushed, state of this fiber is the alternate. Ideally + // nothing should rely on this, but relying on it here means that we don't + // need an additional field on the work in progress. + var current = incompleteWork.alternate; // This fiber did not complete because something threw. Pop values off + // the stack without entering the complete phase. If this is a boundary, + // capture values if possible. - { - fiber = sourceFiber.return; - } + var next = unwindWork(current, incompleteWork); // Because this fiber did not complete, don't reset its lanes. - while (fiber !== null) { - if (fiber.tag === HostRoot) { - captureCommitPhaseErrorOnRoot(fiber, sourceFiber, error$1); + if (next !== null) { + // Found a boundary that can handle this exception. Re-renter the + // begin phase. This branch will return us to the normal work loop. + // + // Since we're restarting, remove anything that is not a host effect + // from the effect tag. + next.flags &= HostEffectMask; + workInProgress = next; return; - } else if (fiber.tag === ClassComponent) { - var ctor = fiber.type; - var instance = fiber.stateNode; + } // Keep unwinding until we reach either a boundary or the root. - if ( - typeof ctor.getDerivedStateFromError === "function" || - (typeof instance.componentDidCatch === "function" && - !isAlreadyFailedLegacyErrorBoundary(instance)) - ) { - var errorInfo = createCapturedValueAtFiber(error$1, sourceFiber); - var update = createClassErrorUpdate(fiber, errorInfo, SyncLane); - var root = enqueueUpdate(fiber, update, SyncLane); - var eventTime = requestEventTime(); + if ((incompleteWork.mode & ProfileMode) !== NoMode) { + // Record the render duration for the fiber that errored. + stopProfilerTimerIfRunningAndRecordDelta(incompleteWork, false); // Include the time spent working on failed children before continuing. - if (root !== null) { - markRootUpdated(root, SyncLane, eventTime); - ensureRootIsScheduled(root, eventTime); - } + var actualDuration = incompleteWork.actualDuration; + var child = incompleteWork.child; - return; + while (child !== null) { + // $FlowFixMe[unsafe-addition] addition with possible null/undefined value + actualDuration += child.actualDuration; + child = child.sibling; } - } - - fiber = fiber.return; - } - { - // TODO: Until we re-land skipUnmountedBoundaries (see #20147), this warning - // will fire for errors that are thrown by destroy functions inside deleted - // trees. What it should instead do is propagate the error to the parent of - // the deleted tree. In the meantime, do not add this warning to the - // allowlist; this is only for our internal use. - error( - "Internal React error: Attempted to capture a commit phase error " + - "inside a detached tree. This indicates a bug in React. Likely " + - "causes include deleting the same fiber more than once, committing an " + - "already-finished tree, or an inconsistent return pointer.\n\n" + - "Error message:\n\n%s", - error$1 - ); - } -} -function attachPingListener(root, wakeable, lanes) { - // Attach a ping listener - // - // The data might resolve before we have a chance to commit the fallback. Or, - // in the case of a refresh, we'll never commit a fallback. So we need to - // attach a listener now. When it resolves ("pings"), we can decide whether to - // try rendering the tree again. - // - // Only attach a listener if one does not already exist for the lanes - // we're currently rendering (which acts like a "thread ID" here). - // - // We only need to do this in concurrent mode. Legacy Suspense always - // commits fallbacks synchronously, so there are no pings. - var pingCache = root.pingCache; - var threadIDs; + incompleteWork.actualDuration = actualDuration; + } // TODO: Once we stop prerendering siblings, instead of resetting the parent + // of the node being unwound, we should be able to reset node itself as we + // unwind the stack. Saves an additional null check. - if (pingCache === null) { - pingCache = root.pingCache = new PossiblyWeakMap(); - threadIDs = new Set(); - pingCache.set(wakeable, threadIDs); - } else { - threadIDs = pingCache.get(wakeable); + var returnFiber = incompleteWork.return; - if (threadIDs === undefined) { - threadIDs = new Set(); - pingCache.set(wakeable, threadIDs); + if (returnFiber !== null) { + // Mark the parent fiber as incomplete and clear its subtree flags. + // TODO: Once we stop prerendering siblings, we may be able to get rid of + // the Incomplete flag because unwinding to the nearest boundary will + // happen synchronously. + returnFiber.flags |= Incomplete; + returnFiber.subtreeFlags = NoFlags$1; + returnFiber.deletions = null; } - } + // $FlowFixMe[incompatible-type] we bail out when we get a null - if (!threadIDs.has(lanes)) { - workInProgressRootDidAttachPingListener = true; // Memoize using the thread ID to prevent redundant listeners. + incompleteWork = returnFiber; // Update the next thing we're working on in case something throws. - threadIDs.add(lanes); - var ping = pingSuspendedRoot.bind(null, root, wakeable, lanes); + workInProgress = incompleteWork; + } while (incompleteWork !== null); // We've unwound all the way to the root. - { - if (isDevToolsPresent) { - // If we have pending work still, restore the original updaters - restorePendingUpdaters(root, lanes); - } - } + workInProgressRootExitStatus = RootDidNotComplete; + workInProgress = null; +} - wakeable.then(ping, ping); +function commitRoot(root, recoverableErrors, transitions) { + // TODO: This no longer makes any sense. We already wrap the mutation and + // layout phases. Should be able to remove. + var previousUpdateLanePriority = getCurrentUpdatePriority(); + var prevTransition = ReactCurrentBatchConfig.transition; + + try { + ReactCurrentBatchConfig.transition = null; + setCurrentUpdatePriority(DiscreteEventPriority); + commitRootImpl( + root, + recoverableErrors, + transitions, + previousUpdateLanePriority + ); + } finally { + ReactCurrentBatchConfig.transition = prevTransition; + setCurrentUpdatePriority(previousUpdateLanePriority); } + + return null; } -function pingSuspendedRoot(root, wakeable, pingedLanes) { - var pingCache = root.pingCache; +function commitRootImpl( + root, + recoverableErrors, + transitions, + renderPriorityLevel +) { + do { + // `flushPassiveEffects` will call `flushSyncUpdateQueue` at the end, which + // means `flushPassiveEffects` will sometimes result in additional + // passive effects. So we need to keep flushing in a loop until there are + // no more pending effects. + // TODO: Might be better if `flushPassiveEffects` did not automatically + // flush synchronous work at the end, to avoid factoring hazards like this. + flushPassiveEffects(); + } while (rootWithPendingPassiveEffects !== null); - if (pingCache !== null) { - // The wakeable resolved, so we no longer need to memoize, because it will - // never be thrown again. - pingCache.delete(wakeable); - } + flushRenderPhaseStrictModeWarningsInDEV(); - var eventTime = requestEventTime(); - markRootPinged(root, pingedLanes); - warnIfSuspenseResolutionNotWrappedWithActDEV(root); + if ((executionContext & (RenderContext | CommitContext)) !== NoContext) { + throw new Error("Should not already be working."); + } - if ( - workInProgressRoot === root && - isSubsetOfLanes(workInProgressRootRenderLanes, pingedLanes) - ) { - // Received a ping at the same priority level at which we're currently - // rendering. We might want to restart this render. This should mirror - // the logic of whether or not a root suspends once it completes. - // TODO: If we're rendering sync either due to Sync, Batched or expired, - // we should probably never restart. - // If we're suspended with delay, or if it's a retry, we'll always suspend - // so we can always restart. - if ( - workInProgressRootExitStatus === RootSuspendedWithDelay || - (workInProgressRootExitStatus === RootSuspended && - includesOnlyRetries(workInProgressRootRenderLanes) && - now$1() - globalMostRecentFallbackTime < FALLBACK_THROTTLE_MS) - ) { - // Force a restart from the root by unwinding the stack. Unless this is - // being called from the render phase, because that would cause a crash. - if ((executionContext & RenderContext) === NoContext) { - prepareFreshStack(root, NoLanes); + var finishedWork = root.finishedWork; + var lanes = root.finishedLanes; + + { + markCommitStarted(lanes); + } + + if (finishedWork === null) { + { + markCommitStopped(); + } + + return null; + } else { + { + if (lanes === NoLanes) { + error( + "root.finishedLanes should not be empty during a commit. This is a " + + "bug in React." + ); } - } else { - // Even though we can't restart right now, we might get an - // opportunity later. So we mark this render as having a ping. - workInProgressRootPingedLanes = mergeLanes( - workInProgressRootPingedLanes, - pingedLanes - ); } } - ensureRootIsScheduled(root, eventTime); -} + root.finishedWork = null; + root.finishedLanes = NoLanes; -function retryTimedOutBoundary(boundaryFiber, retryLane) { - // The boundary fiber (a Suspense component or SuspenseList component) - // previously was rendered in its fallback state. One of the promises that - // suspended it has resolved, which means at least part of the tree was - // likely unblocked. Try rendering again, at a new lanes. - if (retryLane === NoLane) { - // TODO: Assign this to `suspenseState.retryLane`? to avoid - // unnecessary entanglement? - retryLane = requestRetryLane(boundaryFiber); - } // TODO: Special case idle priority? + if (finishedWork === root.current) { + throw new Error( + "Cannot commit the same tree as before. This error is likely caused by " + + "a bug in React. Please file an issue." + ); + } // commitRoot never returns a continuation; it always finishes synchronously. + // So we can clear these now to allow a new callback to be scheduled. - var eventTime = requestEventTime(); - var root = enqueueConcurrentRenderForLane(boundaryFiber, retryLane); + root.callbackNode = null; + root.callbackPriority = NoLane; + root.cancelPendingCommit = null; // Check which lanes no longer have any work scheduled on them, and mark + // those as finished. - if (root !== null) { - markRootUpdated(root, retryLane, eventTime); - ensureRootIsScheduled(root, eventTime); - } -} + var remainingLanes = mergeLanes(finishedWork.lanes, finishedWork.childLanes); // Make sure to account for lanes that were updated by a concurrent event + // during the render phase; don't mark them as finished. -function retryDehydratedSuspenseBoundary(boundaryFiber) { - var suspenseState = boundaryFiber.memoizedState; - var retryLane = NoLane; + var concurrentlyUpdatedLanes = getConcurrentlyUpdatedLanes(); + remainingLanes = mergeLanes(remainingLanes, concurrentlyUpdatedLanes); + markRootFinished(root, remainingLanes); - if (suspenseState !== null) { - retryLane = suspenseState.retryLane; - } + if (root === workInProgressRoot) { + // We can reset these now that they are finished. + workInProgressRoot = null; + workInProgress = null; + workInProgressRootRenderLanes = NoLanes; + } // If there are pending passive effects, schedule a callback to process them. + // Do this as early as possible, so it is queued before anything else that + // might get scheduled in the commit phase. (See #16714.) + // TODO: Delete all other places that schedule the passive effect callback + // They're redundant. - retryTimedOutBoundary(boundaryFiber, retryLane); -} -function resolveRetryWakeable(boundaryFiber, wakeable) { - var retryLane = NoLane; // Default + if ( + (finishedWork.subtreeFlags & PassiveMask) !== NoFlags$1 || + (finishedWork.flags & PassiveMask) !== NoFlags$1 + ) { + if (!rootDoesHavePassiveEffects) { + rootDoesHavePassiveEffects = true; + scheduleCallback(NormalPriority, function () { + flushPassiveEffects(); // This render triggered passive effects: release the root cache pool + // *after* passive effects fire to avoid freeing a cache pool that may + // be referenced by a node in the tree (HostRoot, Cache boundary etc) - var retryCache; + return null; + }); + } + } // Check if there are any effects in the whole tree. + // TODO: This is left over from the effect list implementation, where we had + // to check for the existence of `firstEffect` to satisfy Flow. I think the + // only other reason this optimization exists is because it affects profiling. + // Reconsider whether this is necessary. - switch (boundaryFiber.tag) { - case SuspenseComponent: - retryCache = boundaryFiber.stateNode; - var suspenseState = boundaryFiber.memoizedState; + var subtreeHasEffects = + (finishedWork.subtreeFlags & + (BeforeMutationMask | MutationMask | LayoutMask | PassiveMask)) !== + NoFlags$1; + var rootHasEffect = + (finishedWork.flags & + (BeforeMutationMask | MutationMask | LayoutMask | PassiveMask)) !== + NoFlags$1; - if (suspenseState !== null) { - retryLane = suspenseState.retryLane; - } + if (subtreeHasEffects || rootHasEffect) { + var prevTransition = ReactCurrentBatchConfig.transition; + ReactCurrentBatchConfig.transition = null; + var previousPriority = getCurrentUpdatePriority(); + setCurrentUpdatePriority(DiscreteEventPriority); + var prevExecutionContext = executionContext; + executionContext |= CommitContext; // Reset this to null before calling lifecycles - break; + ReactCurrentOwner$1.current = null; // The commit phase is broken into several sub-phases. We do a separate pass + // of the effect list for each phase: all mutation effects come before all + // layout effects, and so on. + // The first phase a "before mutation" phase. We use this phase to read the + // state of the host tree right before we mutate it. This is where + // getSnapshotBeforeUpdate is called. - case SuspenseListComponent: - retryCache = boundaryFiber.stateNode; - break; + commitBeforeMutationEffects(root, finishedWork); - case OffscreenComponent: { - var instance = boundaryFiber.stateNode; - retryCache = instance._retryCache; - break; + { + // Mark the current commit time to be shared by all Profilers in this + // batch. This enables them to be grouped later. + recordCommitTime(); } - default: - throw new Error( - "Pinged unknown suspense boundary type. " + - "This is probably a bug in React." - ); - } + commitMutationEffects(root, finishedWork, lanes); + // the mutation phase, so that the previous tree is still current during + // componentWillUnmount, but before the layout phase, so that the finished + // work is current during componentDidMount/Update. - if (retryCache !== null) { - // The wakeable resolved, so we no longer need to memoize, because it will - // never be thrown again. - retryCache.delete(wakeable); - } + root.current = finishedWork; // The next phase is the layout phase, where we call effects that read - retryTimedOutBoundary(boundaryFiber, retryLane); -} // Computes the next Just Noticeable Difference (JND) boundary. -// The theory is that a person can't tell the difference between small differences in time. -// Therefore, if we wait a bit longer than necessary that won't translate to a noticeable -// difference in the experience. However, waiting for longer might mean that we can avoid -// showing an intermediate loading state. The longer we have already waited, the harder it -// is to tell small differences in time. Therefore, the longer we've already waited, -// the longer we can wait additionally. At some point we have to give up though. -// We pick a train model where the next boundary commits at a consistent schedule. -// These particular numbers are vague estimates. We expect to adjust them based on research. + { + markLayoutEffectsStarted(lanes); + } -function jnd(timeElapsed) { - return timeElapsed < 120 - ? 120 - : timeElapsed < 480 - ? 480 - : timeElapsed < 1080 - ? 1080 - : timeElapsed < 1920 - ? 1920 - : timeElapsed < 3000 - ? 3000 - : timeElapsed < 4320 - ? 4320 - : ceil(timeElapsed / 1960) * 1960; -} + commitLayoutEffects(finishedWork, root, lanes); -function throwIfInfiniteUpdateLoopDetected() { - if (nestedUpdateCount > NESTED_UPDATE_LIMIT) { - nestedUpdateCount = 0; - nestedPassiveUpdateCount = 0; - rootWithNestedUpdates = null; - rootWithPassiveNestedUpdates = null; - throw new Error( - "Maximum update depth exceeded. This can happen when a component " + - "repeatedly calls setState inside componentWillUpdate or " + - "componentDidUpdate. React limits the number of nested updates to " + - "prevent infinite loops." - ); + { + markLayoutEffectsStopped(); + } + // opportunity to paint. + + requestPaint(); + executionContext = prevExecutionContext; // Reset the priority to the previous non-sync value. + + setCurrentUpdatePriority(previousPriority); + ReactCurrentBatchConfig.transition = prevTransition; + } else { + // No effects. + root.current = finishedWork; // Measure these anyway so the flamegraph explicitly shows that there were + // no effects. + // TODO: Maybe there's a better way to report this. + + { + recordCommitTime(); + } } - { - if (nestedPassiveUpdateCount > NESTED_PASSIVE_UPDATE_LIMIT) { + var rootDidHavePassiveEffects = rootDoesHavePassiveEffects; + + if (rootDoesHavePassiveEffects) { + // This commit has passive effects. Stash a reference to them. But don't + // schedule a callback until after flushing layout work. + rootDoesHavePassiveEffects = false; + rootWithPendingPassiveEffects = root; + pendingPassiveEffectsLanes = lanes; + } else { + { nestedPassiveUpdateCount = 0; rootWithPassiveNestedUpdates = null; - - error( - "Maximum update depth exceeded. This can happen when a component " + - "calls setState inside useEffect, but useEffect either doesn't " + - "have a dependency array, or one of the dependencies changes on " + - "every render." - ); } - } -} + } // Read this again, since an effect might have updated it -function flushRenderPhaseStrictModeWarningsInDEV() { - { - ReactStrictModeWarnings.flushLegacyContextWarning(); - ReactStrictModeWarnings.flushPendingUnsafeLifecycleWarnings(); + remainingLanes = root.pendingLanes; // Check if there's remaining work on this root + // TODO: This is part of the `componentDidCatch` implementation. Its purpose + // is to detect whether something might have called setState inside + // `componentDidCatch`. The mechanism is known to be flawed because `setState` + // inside `componentDidCatch` is itself flawed — that's why we recommend + // `getDerivedStateFromError` instead. However, it could be improved by + // checking if remainingLanes includes Sync work, instead of whether there's + // any work remaining at all (which would also include stuff like Suspense + // retries or transitions). It's been like this for a while, though, so fixing + // it probably isn't that urgent. + + if (remainingLanes === NoLanes) { + // If there's no remaining work, we can clear the set of already failed + // error boundaries. + legacyErrorBoundariesThatAlreadyFailed = null; } -} -function commitDoubleInvokeEffectsInDEV(root, hasPassiveEffects) { { - { - legacyCommitDoubleInvokeEffectsInDEV(root.current, hasPassiveEffects); + if (!rootDidHavePassiveEffects) { + commitDoubleInvokeEffectsInDEV(root, false); } } -} - -function legacyCommitDoubleInvokeEffectsInDEV(fiber, hasPassiveEffects) { - // TODO (StrictEffects) Should we set a marker on the root if it contains strict effects - // so we don't traverse unnecessarily? similar to subtreeFlags but just at the root level. - // Maybe not a big deal since this is DEV only behavior. - setCurrentFiber(fiber); - invokeEffectsInDev(fiber, MountLayoutDev, invokeLayoutEffectUnmountInDEV); - - if (hasPassiveEffects) { - invokeEffectsInDev(fiber, MountPassiveDev, invokePassiveEffectUnmountInDEV); - } - invokeEffectsInDev(fiber, MountLayoutDev, invokeLayoutEffectMountInDEV); + onCommitRoot(finishedWork.stateNode, renderPriorityLevel); - if (hasPassiveEffects) { - invokeEffectsInDev(fiber, MountPassiveDev, invokePassiveEffectMountInDEV); + { + if (isDevToolsPresent) { + root.memoizedUpdaters.clear(); + } } + // additional work on this root is scheduled. - resetCurrentFiber(); -} - -function invokeEffectsInDev(firstChild, fiberFlags, invokeEffectFn) { - var current = firstChild; - var subtreeRoot = null; - - while (current != null) { - var primarySubtreeFlag = current.subtreeFlags & fiberFlags; + ensureRootIsScheduled(root, now$1()); - if ( - current !== subtreeRoot && - current.child != null && - primarySubtreeFlag !== NoFlags$1 - ) { - current = current.child; - } else { - if ((current.flags & fiberFlags) !== NoFlags$1) { - invokeEffectFn(current); - } + if (recoverableErrors !== null) { + // There were errors during this render, but recovered from them without + // needing to surface it to the UI. We log them here. + var onRecoverableError = root.onRecoverableError; - if (current.sibling !== null) { - current = current.sibling; - } else { - current = subtreeRoot = current.return; - } + for (var i = 0; i < recoverableErrors.length; i++) { + var recoverableError = recoverableErrors[i]; + var errorInfo = makeErrorInfo( + recoverableError.digest, + recoverableError.stack + ); + onRecoverableError(recoverableError.value, errorInfo); } } -} - -var didWarnStateUpdateForNotYetMountedComponent = null; -function warnAboutUpdateOnNotYetMountedFiberInDEV(fiber) { - { - if ((executionContext & RenderContext) !== NoContext) { - // We let the other warning about render phase updates deal with this one. - return; - } - - if (!(fiber.mode & ConcurrentMode)) { - return; - } - var tag = fiber.tag; + if (hasUncaughtError) { + hasUncaughtError = false; + var error$1 = firstUncaughtError; + firstUncaughtError = null; + throw error$1; + } // If the passive effects are the result of a discrete render, flush them + // synchronously at the end of the current task so that the result is + // immediately observable. Otherwise, we assume that they are not + // order-dependent and do not need to be observed by external systems, so we + // can wait until after paint. + // TODO: We can optimize this by not scheduling the callback earlier. Since we + // currently schedule the callback in multiple places, will wait until those + // are consolidated. - if ( - tag !== IndeterminateComponent && - tag !== HostRoot && - tag !== ClassComponent && - tag !== FunctionComponent && - tag !== ForwardRef && - tag !== MemoComponent && - tag !== SimpleMemoComponent - ) { - // Only warn for user-defined components, not internal ones like Suspense. - return; - } // We show the whole stack but dedupe on the top component's name because - // the problematic code almost always lies inside that component. + if (includesSyncLane(pendingPassiveEffectsLanes) && root.tag !== LegacyRoot) { + flushPassiveEffects(); + } // Read this again, since a passive effect might have updated it - var componentName = getComponentNameFromFiber(fiber) || "ReactComponent"; + remainingLanes = root.pendingLanes; - if (didWarnStateUpdateForNotYetMountedComponent !== null) { - if (didWarnStateUpdateForNotYetMountedComponent.has(componentName)) { - return; - } // $FlowFixMe[incompatible-use] found when upgrading Flow + if (includesSyncLane(remainingLanes)) { + { + markNestedUpdateScheduled(); + } // Count the number of times the root synchronously re-renders without + // finishing. If there are too many, it indicates an infinite update loop. - didWarnStateUpdateForNotYetMountedComponent.add(componentName); + if (root === rootWithNestedUpdates) { + nestedUpdateCount++; } else { - didWarnStateUpdateForNotYetMountedComponent = new Set([componentName]); + nestedUpdateCount = 0; + rootWithNestedUpdates = root; } + } else { + nestedUpdateCount = 0; + } // If layout work was scheduled, flush it now. - var previousFiber = current; + flushSyncCallbacks(); - try { - setCurrentFiber(fiber); + { + markCommitStopped(); + } - error( - "Can't perform a React state update on a component that hasn't mounted yet. " + - "This indicates that you have a side-effect in your render function that " + - "asynchronously later calls tries to update the component. Move this work to " + - "useEffect instead." - ); - } finally { - if (previousFiber) { - setCurrentFiber(fiber); - } else { - resetCurrentFiber(); + return null; +} + +function makeErrorInfo(digest, componentStack) { + { + var errorInfo = { + componentStack: componentStack, + digest: digest + }; + Object.defineProperty(errorInfo, "digest", { + configurable: false, + enumerable: true, + get: function () { + error( + 'You are accessing "digest" from the errorInfo object passed to onRecoverableError.' + + " This property is deprecated and will be removed in a future version of React." + + " To access the digest of an Error look for this property on the Error instance itself." + ); + + return digest; } - } + }); + return errorInfo; } } -var beginWork; -{ - var dummyFiber = null; - - beginWork = function (current, unitOfWork, lanes) { - // If a component throws an error, we replay it again in a synchronously - // dispatched event, so that the debugger will treat it as an uncaught - // error See ReactErrorUtils for more information. - // Before entering the begin phase, copy the work-in-progress onto a dummy - // fiber. If beginWork throws, we'll use this to reset the state. - var originalWorkInProgressCopy = assignFiberPropertiesInDEV( - dummyFiber, - unitOfWork - ); +function flushPassiveEffects() { + // Returns whether passive effects were flushed. + // TODO: Combine this check with the one in flushPassiveEFfectsImpl. We should + // probably just combine the two functions. I believe they were only separate + // in the first place because we used to wrap it with + // `Scheduler.runWithPriority`, which accepts a function. But now we track the + // priority within React itself, so we can mutate the variable directly. + if (rootWithPendingPassiveEffects !== null) { + var renderPriority = lanesToEventPriority(pendingPassiveEffectsLanes); + var priority = lowerEventPriority(DefaultEventPriority, renderPriority); + var prevTransition = ReactCurrentBatchConfig.transition; + var previousPriority = getCurrentUpdatePriority(); try { - return beginWork$1(current, unitOfWork, lanes); - } catch (originalError) { - if ( - didSuspendOrErrorWhileHydratingDEV() || - originalError === SuspenseException || - originalError === SelectiveHydrationException || - (originalError !== null && - typeof originalError === "object" && - typeof originalError.then === "function") - ) { - // Don't replay promises. - // Don't replay errors if we are hydrating and have already suspended or handled an error - throw originalError; - } // Don't reset current debug fiber, since we're about to work on the - // same fiber again. - // Unwind the failed stack frame - - resetSuspendedWorkLoopOnUnwind(); - unwindInterruptedWork(current, unitOfWork); // Restore the original properties of the fiber. - - assignFiberPropertiesInDEV(unitOfWork, originalWorkInProgressCopy); - - if (unitOfWork.mode & ProfileMode) { - // Reset the profiler timer. - startProfilerTimer(unitOfWork); - } // Run beginWork again. - - invokeGuardedCallback( - null, - beginWork$1, - null, - current, - unitOfWork, - lanes - ); - - if (hasCaughtError()) { - var replayError = clearCaughtError(); - - if ( - typeof replayError === "object" && - replayError !== null && - replayError._suppressLogging && - typeof originalError === "object" && - originalError !== null && - !originalError._suppressLogging - ) { - // If suppressed, let the flag carry over to the original error which is the one we'll rethrow. - originalError._suppressLogging = true; - } - } // We always throw the original error in case the second render pass is not idempotent. - // This can happen if a memoized function or CommonJS module doesn't throw after first invocation. - - throw originalError; + ReactCurrentBatchConfig.transition = null; + setCurrentUpdatePriority(priority); + return flushPassiveEffectsImpl(); + } finally { + setCurrentUpdatePriority(previousPriority); + ReactCurrentBatchConfig.transition = prevTransition; // Once passive effects have run for the tree - giving components a } - }; -} - -var didWarnAboutUpdateInRender = false; -var didWarnAboutUpdateInRenderForAnotherComponent; + } -{ - didWarnAboutUpdateInRenderForAnotherComponent = new Set(); + return false; } - -function warnAboutRenderPhaseUpdatesInDEV(fiber) { +function enqueuePendingPassiveProfilerEffect(fiber) { { - if (isRendering) { - switch (fiber.tag) { - case FunctionComponent: - case ForwardRef: - case SimpleMemoComponent: { - var renderingComponentName = - (workInProgress && getComponentNameFromFiber(workInProgress)) || - "Unknown"; // Dedupe by the rendering component because it's the one that needs to be fixed. - - var dedupeKey = renderingComponentName; - - if (!didWarnAboutUpdateInRenderForAnotherComponent.has(dedupeKey)) { - didWarnAboutUpdateInRenderForAnotherComponent.add(dedupeKey); - var setStateComponentName = - getComponentNameFromFiber(fiber) || "Unknown"; + pendingPassiveProfilerEffects.push(fiber); - error( - "Cannot update a component (`%s`) while rendering a " + - "different component (`%s`). To locate the bad setState() call inside `%s`, " + - "follow the stack trace as described in https://reactjs.org/link/setstate-in-render", - setStateComponentName, - renderingComponentName, - renderingComponentName - ); - } + if (!rootDoesHavePassiveEffects) { + rootDoesHavePassiveEffects = true; + scheduleCallback(NormalPriority, function () { + flushPassiveEffects(); + return null; + }); + } + } +} - break; - } +function flushPassiveEffectsImpl() { + if (rootWithPendingPassiveEffects === null) { + return false; + } // Cache and clear the transitions flag + var root = rootWithPendingPassiveEffects; + var lanes = pendingPassiveEffectsLanes; + rootWithPendingPassiveEffects = null; // TODO: This is sometimes out of sync with rootWithPendingPassiveEffects. + // Figure out why and fix it. It's not causing any known issues (probably + // because it's only used for profiling), but it's a refactor hazard. - case ClassComponent: { - if (!didWarnAboutUpdateInRender) { - error( - "Cannot update during an existing state transition (such as " + - "within `render`). Render methods should be a pure " + - "function of props and state." - ); + pendingPassiveEffectsLanes = NoLanes; - didWarnAboutUpdateInRender = true; - } + if ((executionContext & (RenderContext | CommitContext)) !== NoContext) { + throw new Error("Cannot flush passive effects while already rendering."); + } - break; - } - } - } + { + isFlushingPassiveEffects = true; + didScheduleUpdateDuringPassiveEffects = false; } -} -function restorePendingUpdaters(root, lanes) { { - if (isDevToolsPresent) { - var memoizedUpdaters = root.memoizedUpdaters; - memoizedUpdaters.forEach(function (schedulingFiber) { - addFiberToLanesMap(root, schedulingFiber, lanes); - }); // This function intentionally does not clear memoized updaters. - // Those may still be relevant to the current commit - // and a future one (e.g. Suspense). - } + markPassiveEffectsStarted(lanes); } -} -var fakeActCallbackNode = {}; // $FlowFixMe[missing-local-annot] -function scheduleCallback(priorityLevel, callback) { + var prevExecutionContext = executionContext; + executionContext |= CommitContext; + commitPassiveUnmountEffects(root.current); + commitPassiveMountEffects(root, root.current); // TODO: Move to commitPassiveMountEffects + { - // If we're currently inside an `act` scope, bypass Scheduler and push to - // the `act` queue instead. - var actQueue = ReactCurrentActQueue.current; + var profilerEffects = pendingPassiveProfilerEffects; + pendingPassiveProfilerEffects = []; - if (actQueue !== null) { - actQueue.push(callback); - return fakeActCallbackNode; - } else { - return scheduleCallback$1(priorityLevel, callback); + for (var i = 0; i < profilerEffects.length; i++) { + var fiber = profilerEffects[i]; + commitPassiveEffectDurations(root, fiber); } } -} -function cancelCallback(callbackNode) { - if (callbackNode === fakeActCallbackNode) { - return; - } // In production, always call Scheduler. This function will be stripped out. + { + markPassiveEffectsStopped(); + } - return cancelCallback$1(callbackNode); -} + { + commitDoubleInvokeEffectsInDEV(root, true); + } -function shouldForceFlushFallbacksInDEV() { - // Never force flush in production. This function should get stripped out. - return ReactCurrentActQueue.current !== null; -} + executionContext = prevExecutionContext; + flushSyncCallbacks(); -function warnIfUpdatesNotWrappedWithActDEV(fiber) { { - if (fiber.mode & ConcurrentMode) { - if (!isConcurrentActEnvironment()) { - // Not in an act environment. No need to warn. - return; + // If additional passive effects were scheduled, increment a counter. If this + // exceeds the limit, we'll fire a warning. + if (didScheduleUpdateDuringPassiveEffects) { + if (root === rootWithPassiveNestedUpdates) { + nestedPassiveUpdateCount++; + } else { + nestedPassiveUpdateCount = 0; + rootWithPassiveNestedUpdates = root; } } else { - // Legacy mode has additional cases where we suppress a warning. - if (!isLegacyActEnvironment()) { - // Not in an act environment. No need to warn. - return; - } - - if (executionContext !== NoContext) { - // Legacy mode doesn't warn if the update is batched, i.e. - // batchedUpdates or flushSync. - return; - } - - if ( - fiber.tag !== FunctionComponent && - fiber.tag !== ForwardRef && - fiber.tag !== SimpleMemoComponent - ) { - // For backwards compatibility with pre-hooks code, legacy mode only - // warns for updates that originate from a hook. - return; - } + nestedPassiveUpdateCount = 0; } - if (ReactCurrentActQueue.current === null) { - var previousFiber = current; + isFlushingPassiveEffects = false; + didScheduleUpdateDuringPassiveEffects = false; + } // TODO: Move to commitPassiveMountEffects - try { - setCurrentFiber(fiber); + onPostCommitRoot(root); - error( - "An update to %s inside a test was not wrapped in act(...).\n\n" + - "When testing, code that causes React state updates should be " + - "wrapped into act(...):\n\n" + - "act(() => {\n" + - " /* fire events that update state */\n" + - "});\n" + - "/* assert on the output */\n\n" + - "This ensures that you're testing the behavior the user would see " + - "in the browser." + - " Learn more at https://reactjs.org/link/wrap-tests-with-act", - getComponentNameFromFiber(fiber) - ); - } finally { - if (previousFiber) { - setCurrentFiber(fiber); - } else { - resetCurrentFiber(); - } - } - } + { + var stateNode = root.current.stateNode; + stateNode.effectDuration = 0; + stateNode.passiveEffectDuration = 0; } + + return true; } -function warnIfSuspenseResolutionNotWrappedWithActDEV(root) { - { - if ( - root.tag !== LegacyRoot && - isConcurrentActEnvironment() && - ReactCurrentActQueue.current === null - ) { - error( - "A suspended resource finished loading inside a test, but the event " + - "was not wrapped in act(...).\n\n" + - "When testing, code that resolves suspended data should be wrapped " + - "into act(...):\n\n" + - "act(() => {\n" + - " /* finish loading suspended data */\n" + - "});\n" + - "/* assert on the output */\n\n" + - "This ensures that you're testing the behavior the user would see " + - "in the browser." + - " Learn more at https://reactjs.org/link/wrap-tests-with-act" - ); - } +function isAlreadyFailedLegacyErrorBoundary(instance) { + return ( + legacyErrorBoundariesThatAlreadyFailed !== null && + legacyErrorBoundariesThatAlreadyFailed.has(instance) + ); +} +function markLegacyErrorBoundaryAsFailed(instance) { + if (legacyErrorBoundariesThatAlreadyFailed === null) { + legacyErrorBoundariesThatAlreadyFailed = new Set([instance]); + } else { + legacyErrorBoundariesThatAlreadyFailed.add(instance); } } -function setIsRunningInsertionEffect(isRunning) { - { - isRunningInsertionEffect = isRunning; +function prepareToThrowUncaughtError(error) { + if (!hasUncaughtError) { + hasUncaughtError = true; + firstUncaughtError = error; } } -/* eslint-disable react-internal/prod-error-codes */ -// Used by React Refresh runtime through DevTools Global Hook. +var onUncaughtError = prepareToThrowUncaughtError; -var resolveFamily = null; -var failedBoundaries = null; -var setRefreshHandler = function (handler) { +function captureCommitPhaseErrorOnRoot(rootFiber, sourceFiber, error) { + var errorInfo = createCapturedValueAtFiber(error, sourceFiber); + var update = createRootErrorUpdate(rootFiber, errorInfo, SyncLane); + var root = enqueueUpdate(rootFiber, update, SyncLane); + var eventTime = requestEventTime(); + + if (root !== null) { + markRootUpdated(root, SyncLane, eventTime); + ensureRootIsScheduled(root, eventTime); + } +} + +function captureCommitPhaseError(sourceFiber, nearestMountedAncestor, error$1) { { - resolveFamily = handler; + reportUncaughtErrorInDEV(error$1); + setIsRunningInsertionEffect(false); } -}; -function resolveFunctionForHotReloading(type) { - { - if (resolveFamily === null) { - // Hot reloading is disabled. - return type; - } - var family = resolveFamily(type); + if (sourceFiber.tag === HostRoot) { + // Error was thrown at the root. There is no parent, so the root + // itself should capture it. + captureCommitPhaseErrorOnRoot(sourceFiber, sourceFiber, error$1); + return; + } - if (family === undefined) { - return type; - } // Use the latest known implementation. + var fiber = null; - return family.current; - } -} -function resolveClassForHotReloading(type) { - // No implementation differences. - return resolveFunctionForHotReloading(type); -} -function resolveForwardRefForHotReloading(type) { { - if (resolveFamily === null) { - // Hot reloading is disabled. - return type; - } + fiber = sourceFiber.return; + } - var family = resolveFamily(type); + while (fiber !== null) { + if (fiber.tag === HostRoot) { + captureCommitPhaseErrorOnRoot(fiber, sourceFiber, error$1); + return; + } else if (fiber.tag === ClassComponent) { + var ctor = fiber.type; + var instance = fiber.stateNode; - if (family === undefined) { - // Check if we're dealing with a real forwardRef. Don't want to crash early. if ( - type !== null && - type !== undefined && - typeof type.render === "function" + typeof ctor.getDerivedStateFromError === "function" || + (typeof instance.componentDidCatch === "function" && + !isAlreadyFailedLegacyErrorBoundary(instance)) ) { - // ForwardRef is special because its resolved .type is an object, - // but it's possible that we only have its inner render function in the map. - // If that inner render function is different, we'll build a new forwardRef type. - var currentRender = resolveFunctionForHotReloading(type.render); - - if (type.render !== currentRender) { - var syntheticType = { - $$typeof: REACT_FORWARD_REF_TYPE, - render: currentRender - }; - - if (type.displayName !== undefined) { - syntheticType.displayName = type.displayName; - } + var errorInfo = createCapturedValueAtFiber(error$1, sourceFiber); + var update = createClassErrorUpdate(fiber, errorInfo, SyncLane); + var root = enqueueUpdate(fiber, update, SyncLane); + var eventTime = requestEventTime(); - return syntheticType; + if (root !== null) { + markRootUpdated(root, SyncLane, eventTime); + ensureRootIsScheduled(root, eventTime); } + + return; } + } - return type; - } // Use the latest known implementation. + fiber = fiber.return; + } - return family.current; + { + // TODO: Until we re-land skipUnmountedBoundaries (see #20147), this warning + // will fire for errors that are thrown by destroy functions inside deleted + // trees. What it should instead do is propagate the error to the parent of + // the deleted tree. In the meantime, do not add this warning to the + // allowlist; this is only for our internal use. + error( + "Internal React error: Attempted to capture a commit phase error " + + "inside a detached tree. This indicates a bug in React. Likely " + + "causes include deleting the same fiber more than once, committing an " + + "already-finished tree, or an inconsistent return pointer.\n\n" + + "Error message:\n\n%s", + error$1 + ); } } -function isCompatibleFamilyForHotReloading(fiber, element) { - { - if (resolveFamily === null) { - // Hot reloading is disabled. - return false; - } - - var prevType = fiber.elementType; - var nextType = element.type; // If we got here, we know types aren't === equal. - - var needsCompareFamilies = false; - var $$typeofNextType = - typeof nextType === "object" && nextType !== null - ? nextType.$$typeof - : null; - - switch (fiber.tag) { - case ClassComponent: { - if (typeof nextType === "function") { - needsCompareFamilies = true; - } +function attachPingListener(root, wakeable, lanes) { + // Attach a ping listener + // + // The data might resolve before we have a chance to commit the fallback. Or, + // in the case of a refresh, we'll never commit a fallback. So we need to + // attach a listener now. When it resolves ("pings"), we can decide whether to + // try rendering the tree again. + // + // Only attach a listener if one does not already exist for the lanes + // we're currently rendering (which acts like a "thread ID" here). + // + // We only need to do this in concurrent mode. Legacy Suspense always + // commits fallbacks synchronously, so there are no pings. + var pingCache = root.pingCache; + var threadIDs; - break; - } + if (pingCache === null) { + pingCache = root.pingCache = new PossiblyWeakMap(); + threadIDs = new Set(); + pingCache.set(wakeable, threadIDs); + } else { + threadIDs = pingCache.get(wakeable); - case FunctionComponent: { - if (typeof nextType === "function") { - needsCompareFamilies = true; - } else if ($$typeofNextType === REACT_LAZY_TYPE) { - // We don't know the inner type yet. - // We're going to assume that the lazy inner type is stable, - // and so it is sufficient to avoid reconciling it away. - // We're not going to unwrap or actually use the new lazy type. - needsCompareFamilies = true; - } + if (threadIDs === undefined) { + threadIDs = new Set(); + pingCache.set(wakeable, threadIDs); + } + } - break; - } + if (!threadIDs.has(lanes)) { + workInProgressRootDidAttachPingListener = true; // Memoize using the thread ID to prevent redundant listeners. - case ForwardRef: { - if ($$typeofNextType === REACT_FORWARD_REF_TYPE) { - needsCompareFamilies = true; - } else if ($$typeofNextType === REACT_LAZY_TYPE) { - needsCompareFamilies = true; - } + threadIDs.add(lanes); + var ping = pingSuspendedRoot.bind(null, root, wakeable, lanes); - break; + { + if (isDevToolsPresent) { + // If we have pending work still, restore the original updaters + restorePendingUpdaters(root, lanes); } + } - case MemoComponent: - case SimpleMemoComponent: { - if ($$typeofNextType === REACT_MEMO_TYPE) { - // TODO: if it was but can no longer be simple, - // we shouldn't set this. - needsCompareFamilies = true; - } else if ($$typeofNextType === REACT_LAZY_TYPE) { - needsCompareFamilies = true; - } + wakeable.then(ping, ping); + } +} - break; - } +function pingSuspendedRoot(root, wakeable, pingedLanes) { + var pingCache = root.pingCache; - default: - return false; - } // Check if both types have a family and it's the same one. + if (pingCache !== null) { + // The wakeable resolved, so we no longer need to memoize, because it will + // never be thrown again. + pingCache.delete(wakeable); + } - if (needsCompareFamilies) { - // Note: memo() and forwardRef() we'll compare outer rather than inner type. - // This means both of them need to be registered to preserve state. - // If we unwrapped and compared the inner types for wrappers instead, - // then we would risk falsely saying two separate memo(Foo) - // calls are equivalent because they wrap the same Foo function. - var prevFamily = resolveFamily(prevType); // $FlowFixMe[not-a-function] found when upgrading Flow + var eventTime = requestEventTime(); + markRootPinged(root, pingedLanes); + warnIfSuspenseResolutionNotWrappedWithActDEV(root); - if (prevFamily !== undefined && prevFamily === resolveFamily(nextType)) { - return true; + if ( + workInProgressRoot === root && + isSubsetOfLanes(workInProgressRootRenderLanes, pingedLanes) + ) { + // Received a ping at the same priority level at which we're currently + // rendering. We might want to restart this render. This should mirror + // the logic of whether or not a root suspends once it completes. + // TODO: If we're rendering sync either due to Sync, Batched or expired, + // we should probably never restart. + // If we're suspended with delay, or if it's a retry, we'll always suspend + // so we can always restart. + if ( + workInProgressRootExitStatus === RootSuspendedWithDelay || + (workInProgressRootExitStatus === RootSuspended && + includesOnlyRetries(workInProgressRootRenderLanes) && + now$1() - globalMostRecentFallbackTime < FALLBACK_THROTTLE_MS) + ) { + // Force a restart from the root by unwinding the stack. Unless this is + // being called from the render phase, because that would cause a crash. + if ((executionContext & RenderContext) === NoContext) { + prepareFreshStack(root, NoLanes); } + } else { + // Even though we can't restart right now, we might get an + // opportunity later. So we mark this render as having a ping. + workInProgressRootPingedLanes = mergeLanes( + workInProgressRootPingedLanes, + pingedLanes + ); } - - return false; } + + ensureRootIsScheduled(root, eventTime); } -function markFailedErrorBoundaryForHotReloading(fiber) { - { - if (resolveFamily === null) { - // Hot reloading is disabled. - return; - } - if (typeof WeakSet !== "function") { - return; - } +function retryTimedOutBoundary(boundaryFiber, retryLane) { + // The boundary fiber (a Suspense component or SuspenseList component) + // previously was rendered in its fallback state. One of the promises that + // suspended it has resolved, which means at least part of the tree was + // likely unblocked. Try rendering again, at a new lanes. + if (retryLane === NoLane) { + // TODO: Assign this to `suspenseState.retryLane`? to avoid + // unnecessary entanglement? + retryLane = requestRetryLane(boundaryFiber); + } // TODO: Special case idle priority? - if (failedBoundaries === null) { - failedBoundaries = new WeakSet(); - } + var eventTime = requestEventTime(); + var root = enqueueConcurrentRenderForLane(boundaryFiber, retryLane); - failedBoundaries.add(fiber); + if (root !== null) { + markRootUpdated(root, retryLane, eventTime); + ensureRootIsScheduled(root, eventTime); } } -var scheduleRefresh = function (root, update) { - { - if (resolveFamily === null) { - // Hot reloading is disabled. - return; - } - var staleFamilies = update.staleFamilies, - updatedFamilies = update.updatedFamilies; - flushPassiveEffects(); - flushSync(function () { - scheduleFibersWithFamiliesRecursively( - root.current, - updatedFamilies, - staleFamilies - ); - }); - } -}; -var scheduleRoot = function (root, element) { - { - if (root.context !== emptyContextObject) { - // Super edge case: root has a legacy _renderSubtree context - // but we don't know the parentComponent so we can't pass it. - // Just ignore. We'll delete this with _renderSubtree code path later. - return; - } +function retryDehydratedSuspenseBoundary(boundaryFiber) { + var suspenseState = boundaryFiber.memoizedState; + var retryLane = NoLane; - flushPassiveEffects(); - flushSync(function () { - updateContainer(element, root, null, null); - }); + if (suspenseState !== null) { + retryLane = suspenseState.retryLane; } -}; -function scheduleFibersWithFamiliesRecursively( - fiber, - updatedFamilies, - staleFamilies -) { - { - var alternate = fiber.alternate, - child = fiber.child, - sibling = fiber.sibling, - tag = fiber.tag, - type = fiber.type; - var candidateType = null; + retryTimedOutBoundary(boundaryFiber, retryLane); +} +function resolveRetryWakeable(boundaryFiber, wakeable) { + var retryLane = NoLane; // Default - switch (tag) { - case FunctionComponent: - case SimpleMemoComponent: - case ClassComponent: - candidateType = type; - break; + var retryCache; - case ForwardRef: - candidateType = type.render; - break; - } + switch (boundaryFiber.tag) { + case SuspenseComponent: + retryCache = boundaryFiber.stateNode; + var suspenseState = boundaryFiber.memoizedState; - if (resolveFamily === null) { - throw new Error("Expected resolveFamily to be set during hot reload."); - } + if (suspenseState !== null) { + retryLane = suspenseState.retryLane; + } - var needsRender = false; - var needsRemount = false; + break; - if (candidateType !== null) { - var family = resolveFamily(candidateType); + case SuspenseListComponent: + retryCache = boundaryFiber.stateNode; + break; - if (family !== undefined) { - if (staleFamilies.has(family)) { - needsRemount = true; - } else if (updatedFamilies.has(family)) { - if (tag === ClassComponent) { - needsRemount = true; - } else { - needsRender = true; - } - } - } + case OffscreenComponent: { + var instance = boundaryFiber.stateNode; + retryCache = instance._retryCache; + break; } - if (failedBoundaries !== null) { - if ( - failedBoundaries.has(fiber) || // $FlowFixMe[incompatible-use] found when upgrading Flow - (alternate !== null && failedBoundaries.has(alternate)) - ) { - needsRemount = true; - } - } + default: + throw new Error( + "Pinged unknown suspense boundary type. " + + "This is probably a bug in React." + ); + } - if (needsRemount) { - fiber._debugNeedsRemount = true; - } + if (retryCache !== null) { + // The wakeable resolved, so we no longer need to memoize, because it will + // never be thrown again. + retryCache.delete(wakeable); + } - if (needsRemount || needsRender) { - var root = enqueueConcurrentRenderForLane(fiber, SyncLane); + retryTimedOutBoundary(boundaryFiber, retryLane); +} // Computes the next Just Noticeable Difference (JND) boundary. +// The theory is that a person can't tell the difference between small differences in time. +// Therefore, if we wait a bit longer than necessary that won't translate to a noticeable +// difference in the experience. However, waiting for longer might mean that we can avoid +// showing an intermediate loading state. The longer we have already waited, the harder it +// is to tell small differences in time. Therefore, the longer we've already waited, +// the longer we can wait additionally. At some point we have to give up though. +// We pick a train model where the next boundary commits at a consistent schedule. +// These particular numbers are vague estimates. We expect to adjust them based on research. - if (root !== null) { - scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); - } - } +function jnd(timeElapsed) { + return timeElapsed < 120 + ? 120 + : timeElapsed < 480 + ? 480 + : timeElapsed < 1080 + ? 1080 + : timeElapsed < 1920 + ? 1920 + : timeElapsed < 3000 + ? 3000 + : timeElapsed < 4320 + ? 4320 + : ceil(timeElapsed / 1960) * 1960; +} - if (child !== null && !needsRemount) { - scheduleFibersWithFamiliesRecursively( - child, - updatedFamilies, - staleFamilies - ); - } +function throwIfInfiniteUpdateLoopDetected() { + if (nestedUpdateCount > NESTED_UPDATE_LIMIT) { + nestedUpdateCount = 0; + nestedPassiveUpdateCount = 0; + rootWithNestedUpdates = null; + rootWithPassiveNestedUpdates = null; + throw new Error( + "Maximum update depth exceeded. This can happen when a component " + + "repeatedly calls setState inside componentWillUpdate or " + + "componentDidUpdate. React limits the number of nested updates to " + + "prevent infinite loops." + ); + } - if (sibling !== null) { - scheduleFibersWithFamiliesRecursively( - sibling, - updatedFamilies, - staleFamilies + { + if (nestedPassiveUpdateCount > NESTED_PASSIVE_UPDATE_LIMIT) { + nestedPassiveUpdateCount = 0; + rootWithPassiveNestedUpdates = null; + + error( + "Maximum update depth exceeded. This can happen when a component " + + "calls setState inside useEffect, but useEffect either doesn't " + + "have a dependency array, or one of the dependencies changes on " + + "every render." ); } } } -var findHostInstancesForRefresh = function (root, families) { +function flushRenderPhaseStrictModeWarningsInDEV() { { - var hostInstances = new Set(); - var types = new Set( - families.map(function (family) { - return family.current; - }) - ); - findHostInstancesForMatchingFibersRecursively( - root.current, - types, - hostInstances - ); - return hostInstances; + ReactStrictModeWarnings.flushLegacyContextWarning(); + ReactStrictModeWarnings.flushPendingUnsafeLifecycleWarnings(); } -}; +} -function findHostInstancesForMatchingFibersRecursively( - fiber, - types, - hostInstances -) { +function commitDoubleInvokeEffectsInDEV(root, hasPassiveEffects) { { - var child = fiber.child, - sibling = fiber.sibling, - tag = fiber.tag, - type = fiber.type; - var candidateType = null; + { + legacyCommitDoubleInvokeEffectsInDEV(root.current, hasPassiveEffects); + } + } +} - switch (tag) { - case FunctionComponent: - case SimpleMemoComponent: - case ClassComponent: - candidateType = type; - break; +function legacyCommitDoubleInvokeEffectsInDEV(fiber, hasPassiveEffects) { + // TODO (StrictEffects) Should we set a marker on the root if it contains strict effects + // so we don't traverse unnecessarily? similar to subtreeFlags but just at the root level. + // Maybe not a big deal since this is DEV only behavior. + setCurrentFiber(fiber); + invokeEffectsInDev(fiber, MountLayoutDev, invokeLayoutEffectUnmountInDEV); - case ForwardRef: - candidateType = type.render; - break; - } + if (hasPassiveEffects) { + invokeEffectsInDev(fiber, MountPassiveDev, invokePassiveEffectUnmountInDEV); + } + + invokeEffectsInDev(fiber, MountLayoutDev, invokeLayoutEffectMountInDEV); + + if (hasPassiveEffects) { + invokeEffectsInDev(fiber, MountPassiveDev, invokePassiveEffectMountInDEV); + } - var didMatch = false; + resetCurrentFiber(); +} - if (candidateType !== null) { - if (types.has(candidateType)) { - didMatch = true; - } - } +function invokeEffectsInDev(firstChild, fiberFlags, invokeEffectFn) { + var current = firstChild; + var subtreeRoot = null; - if (didMatch) { - // We have a match. This only drills down to the closest host components. - // There's no need to search deeper because for the purpose of giving - // visual feedback, "flashing" outermost parent rectangles is sufficient. - findHostInstancesForFiberShallowly(fiber, hostInstances); + while (current != null) { + var primarySubtreeFlag = current.subtreeFlags & fiberFlags; + + if ( + current !== subtreeRoot && + current.child != null && + primarySubtreeFlag !== NoFlags$1 + ) { + current = current.child; } else { - // If there's no match, maybe there will be one further down in the child tree. - if (child !== null) { - findHostInstancesForMatchingFibersRecursively( - child, - types, - hostInstances - ); + if ((current.flags & fiberFlags) !== NoFlags$1) { + invokeEffectFn(current); } - } - if (sibling !== null) { - findHostInstancesForMatchingFibersRecursively( - sibling, - types, - hostInstances - ); + if (current.sibling !== null) { + current = current.sibling; + } else { + current = subtreeRoot = current.return; + } } } } -function findHostInstancesForFiberShallowly(fiber, hostInstances) { +var didWarnStateUpdateForNotYetMountedComponent = null; +function warnAboutUpdateOnNotYetMountedFiberInDEV(fiber) { { - var foundHostInstances = findChildHostInstancesForFiberShallowly( - fiber, - hostInstances - ); + if ((executionContext & RenderContext) !== NoContext) { + // We let the other warning about render phase updates deal with this one. + return; + } - if (foundHostInstances) { + if (!(fiber.mode & ConcurrentMode)) { return; - } // If we didn't find any host children, fallback to closest host parent. + } - var node = fiber; + var tag = fiber.tag; - while (true) { - switch (node.tag) { - case HostSingleton: - case HostComponent: - hostInstances.add(node.stateNode); - return; + if ( + tag !== IndeterminateComponent && + tag !== HostRoot && + tag !== ClassComponent && + tag !== FunctionComponent && + tag !== ForwardRef && + tag !== MemoComponent && + tag !== SimpleMemoComponent + ) { + // Only warn for user-defined components, not internal ones like Suspense. + return; + } // We show the whole stack but dedupe on the top component's name because + // the problematic code almost always lies inside that component. - case HostPortal: - hostInstances.add(node.stateNode.containerInfo); - return; + var componentName = getComponentNameFromFiber(fiber) || "ReactComponent"; - case HostRoot: - hostInstances.add(node.stateNode.containerInfo); - return; - } + if (didWarnStateUpdateForNotYetMountedComponent !== null) { + if (didWarnStateUpdateForNotYetMountedComponent.has(componentName)) { + return; + } // $FlowFixMe[incompatible-use] found when upgrading Flow - if (node.return === null) { - throw new Error("Expected to reach root first."); - } + didWarnStateUpdateForNotYetMountedComponent.add(componentName); + } else { + didWarnStateUpdateForNotYetMountedComponent = new Set([componentName]); + } - node = node.return; + var previousFiber = current; + + try { + setCurrentFiber(fiber); + + error( + "Can't perform a React state update on a component that hasn't mounted yet. " + + "This indicates that you have a side-effect in your render function that " + + "asynchronously later calls tries to update the component. Move this work to " + + "useEffect instead." + ); + } finally { + if (previousFiber) { + setCurrentFiber(fiber); + } else { + resetCurrentFiber(); + } } } } +var beginWork; -function findChildHostInstancesForFiberShallowly(fiber, hostInstances) { - { - var node = fiber; - var foundHostInstances = false; +{ + var dummyFiber = null; - while (true) { - if (node.tag === HostComponent || node.tag === HostHoistable || false) { - // We got a match. - foundHostInstances = true; - hostInstances.add(node.stateNode); // There may still be more, so keep searching. - } else if (node.child !== null) { - node.child.return = node; - node = node.child; - continue; - } + beginWork = function (current, unitOfWork, lanes) { + // If a component throws an error, we replay it again in a synchronously + // dispatched event, so that the debugger will treat it as an uncaught + // error See ReactErrorUtils for more information. + // Before entering the begin phase, copy the work-in-progress onto a dummy + // fiber. If beginWork throws, we'll use this to reset the state. + var originalWorkInProgressCopy = assignFiberPropertiesInDEV( + dummyFiber, + unitOfWork + ); - if (node === fiber) { - return foundHostInstances; - } + try { + return beginWork$1(current, unitOfWork, lanes); + } catch (originalError) { + if ( + didSuspendOrErrorWhileHydratingDEV() || + originalError === SuspenseException || + originalError === SelectiveHydrationException || + (originalError !== null && + typeof originalError === "object" && + typeof originalError.then === "function") + ) { + // Don't replay promises. + // Don't replay errors if we are hydrating and have already suspended or handled an error + throw originalError; + } // Don't reset current debug fiber, since we're about to work on the + // same fiber again. + // Unwind the failed stack frame - while (node.sibling === null) { - if (node.return === null || node.return === fiber) { - return foundHostInstances; - } + resetSuspendedWorkLoopOnUnwind(); + unwindInterruptedWork(current, unitOfWork); // Restore the original properties of the fiber. - node = node.return; - } + assignFiberPropertiesInDEV(unitOfWork, originalWorkInProgressCopy); - node.sibling.return = node.return; - node = node.sibling; - } - } + if (unitOfWork.mode & ProfileMode) { + // Reset the profiler timer. + startProfilerTimer(unitOfWork); + } // Run beginWork again. - return false; + invokeGuardedCallback( + null, + beginWork$1, + null, + current, + unitOfWork, + lanes + ); + + if (hasCaughtError()) { + var replayError = clearCaughtError(); + + if ( + typeof replayError === "object" && + replayError !== null && + replayError._suppressLogging && + typeof originalError === "object" && + originalError !== null && + !originalError._suppressLogging + ) { + // If suppressed, let the flag carry over to the original error which is the one we'll rethrow. + originalError._suppressLogging = true; + } + } // We always throw the original error in case the second render pass is not idempotent. + // This can happen if a memoized function or CommonJS module doesn't throw after first invocation. + + throw originalError; + } + }; } -var hasBadMapPolyfill; +var didWarnAboutUpdateInRender = false; +var didWarnAboutUpdateInRenderForAnotherComponent; { - hasBadMapPolyfill = false; + didWarnAboutUpdateInRenderForAnotherComponent = new Set(); +} - try { - var nonExtensibleObject = Object.preventExtensions({}); - /* eslint-disable no-new */ +function warnAboutRenderPhaseUpdatesInDEV(fiber) { + { + if (isRendering) { + switch (fiber.tag) { + case FunctionComponent: + case ForwardRef: + case SimpleMemoComponent: { + var renderingComponentName = + (workInProgress && getComponentNameFromFiber(workInProgress)) || + "Unknown"; // Dedupe by the rendering component because it's the one that needs to be fixed. - new Map([[nonExtensibleObject, null]]); - new Set([nonExtensibleObject]); - /* eslint-enable no-new */ - } catch (e) { - // TODO: Consider warning about bad polyfills - hasBadMapPolyfill = true; - } -} + var dedupeKey = renderingComponentName; -function FiberNode(tag, pendingProps, key, mode) { - // Instance - this.tag = tag; - this.key = key; - this.elementType = null; - this.type = null; - this.stateNode = null; // Fiber + if (!didWarnAboutUpdateInRenderForAnotherComponent.has(dedupeKey)) { + didWarnAboutUpdateInRenderForAnotherComponent.add(dedupeKey); + var setStateComponentName = + getComponentNameFromFiber(fiber) || "Unknown"; + + error( + "Cannot update a component (`%s`) while rendering a " + + "different component (`%s`). To locate the bad setState() call inside `%s`, " + + "follow the stack trace as described in https://reactjs.org/link/setstate-in-render", + setStateComponentName, + renderingComponentName, + renderingComponentName + ); + } - this.return = null; - this.child = null; - this.sibling = null; - this.index = 0; - this.ref = null; - this.refCleanup = null; - this.pendingProps = pendingProps; - this.memoizedProps = null; - this.updateQueue = null; - this.memoizedState = null; - this.dependencies = null; - this.mode = mode; // Effects + break; + } - this.flags = NoFlags$1; - this.subtreeFlags = NoFlags$1; - this.deletions = null; - this.lanes = NoLanes; - this.childLanes = NoLanes; - this.alternate = null; + case ClassComponent: { + if (!didWarnAboutUpdateInRender) { + error( + "Cannot update during an existing state transition (such as " + + "within `render`). Render methods should be a pure " + + "function of props and state." + ); - { - // Note: The following is done to avoid a v8 performance cliff. - // - // Initializing the fields below to smis and later updating them with - // double values will cause Fibers to end up having separate shapes. - // This behavior/bug has something to do with Object.preventExtension(). - // Fortunately this only impacts DEV builds. - // Unfortunately it makes React unusably slow for some applications. - // To work around this, initialize the fields below with doubles. - // - // Learn more about this here: - // https://github.com/facebook/react/issues/14365 - // https://bugs.chromium.org/p/v8/issues/detail?id=8538 - this.actualDuration = Number.NaN; - this.actualStartTime = Number.NaN; - this.selfBaseDuration = Number.NaN; - this.treeBaseDuration = Number.NaN; // It's okay to replace the initial doubles with smis after initialization. - // This won't trigger the performance cliff mentioned above, - // and it simplifies other profiler code (including DevTools). + didWarnAboutUpdateInRender = true; + } - this.actualDuration = 0; - this.actualStartTime = -1; - this.selfBaseDuration = 0; - this.treeBaseDuration = 0; + break; + } + } + } } +} +function restorePendingUpdaters(root, lanes) { { - // This isn't directly used but is handy for debugging internals: - this._debugSource = null; - this._debugOwner = null; - this._debugNeedsRemount = false; - this._debugHookTypes = null; - - if (!hasBadMapPolyfill && typeof Object.preventExtensions === "function") { - Object.preventExtensions(this); + if (isDevToolsPresent) { + var memoizedUpdaters = root.memoizedUpdaters; + memoizedUpdaters.forEach(function (schedulingFiber) { + addFiberToLanesMap(root, schedulingFiber, lanes); + }); // This function intentionally does not clear memoized updaters. + // Those may still be relevant to the current commit + // and a future one (e.g. Suspense). } } -} // This is a constructor function, rather than a POJO constructor, still -// please ensure we do the following: -// 1) Nobody should add any instance methods on this. Instance methods can be -// more difficult to predict when they get optimized and they are almost -// never inlined properly in static compilers. -// 2) Nobody should rely on `instanceof Fiber` for type testing. We should -// always know when it is a fiber. -// 3) We might want to experiment with using numeric keys since they are easier -// to optimize in a non-JIT environment. -// 4) We can easily go from a constructor to a createFiber object literal if that -// is faster. -// 5) It should be easy to port this to a C struct and keep a C implementation -// compatible. - -function createFiber(tag, pendingProps, key, mode) { - // $FlowFixMe: the shapes are exact here but Flow doesn't like constructors - return new FiberNode(tag, pendingProps, key, mode); } +var fakeActCallbackNode = {}; // $FlowFixMe[missing-local-annot] -function shouldConstruct(Component) { - var prototype = Component.prototype; - return !!(prototype && prototype.isReactComponent); -} +function scheduleCallback(priorityLevel, callback) { + { + // If we're currently inside an `act` scope, bypass Scheduler and push to + // the `act` queue instead. + var actQueue = ReactCurrentActQueue.current; -function isSimpleFunctionComponent(type) { - return ( - typeof type === "function" && - !shouldConstruct(type) && - type.defaultProps === undefined - ); + if (actQueue !== null) { + actQueue.push(callback); + return fakeActCallbackNode; + } else { + return scheduleCallback$1(priorityLevel, callback); + } + } } -function resolveLazyComponentTag(Component) { - if (typeof Component === "function") { - return shouldConstruct(Component) ? ClassComponent : FunctionComponent; - } else if (Component !== undefined && Component !== null) { - var $$typeof = Component.$$typeof; - if ($$typeof === REACT_FORWARD_REF_TYPE) { - return ForwardRef; - } +function cancelCallback(callbackNode) { + if (callbackNode === fakeActCallbackNode) { + return; + } // In production, always call Scheduler. This function will be stripped out. - if ($$typeof === REACT_MEMO_TYPE) { - return MemoComponent; - } - } + return cancelCallback$1(callbackNode); +} - return IndeterminateComponent; -} // This is used to create an alternate fiber to do work on. +function shouldForceFlushFallbacksInDEV() { + // Never force flush in production. This function should get stripped out. + return ReactCurrentActQueue.current !== null; +} -function createWorkInProgress(current, pendingProps) { - var workInProgress = current.alternate; +function warnIfUpdatesNotWrappedWithActDEV(fiber) { + { + if (fiber.mode & ConcurrentMode) { + if (!isConcurrentActEnvironment()) { + // Not in an act environment. No need to warn. + return; + } + } else { + // Legacy mode has additional cases where we suppress a warning. + if (!isLegacyActEnvironment()) { + // Not in an act environment. No need to warn. + return; + } - if (workInProgress === null) { - // We use a double buffering pooling technique because we know that we'll - // only ever need at most two versions of a tree. We pool the "other" unused - // node that we're free to reuse. This is lazily created to avoid allocating - // extra objects for things that are never updated. It also allow us to - // reclaim the extra memory if needed. - workInProgress = createFiber( - current.tag, - pendingProps, - current.key, - current.mode - ); - workInProgress.elementType = current.elementType; - workInProgress.type = current.type; - workInProgress.stateNode = current.stateNode; + if (executionContext !== NoContext) { + // Legacy mode doesn't warn if the update is batched, i.e. + // batchedUpdates or flushSync. + return; + } - { - // DEV-only fields - workInProgress._debugSource = current._debugSource; - workInProgress._debugOwner = current._debugOwner; - workInProgress._debugHookTypes = current._debugHookTypes; + if ( + fiber.tag !== FunctionComponent && + fiber.tag !== ForwardRef && + fiber.tag !== SimpleMemoComponent + ) { + // For backwards compatibility with pre-hooks code, legacy mode only + // warns for updates that originate from a hook. + return; + } } - workInProgress.alternate = current; - current.alternate = workInProgress; - } else { - workInProgress.pendingProps = pendingProps; // Needed because Blocks store data on type. - - workInProgress.type = current.type; // We already have an alternate. - // Reset the effect tag. + if (ReactCurrentActQueue.current === null) { + var previousFiber = current; - workInProgress.flags = NoFlags$1; // The effects are no longer valid. + try { + setCurrentFiber(fiber); - workInProgress.subtreeFlags = NoFlags$1; - workInProgress.deletions = null; + error( + "An update to %s inside a test was not wrapped in act(...).\n\n" + + "When testing, code that causes React state updates should be " + + "wrapped into act(...):\n\n" + + "act(() => {\n" + + " /* fire events that update state */\n" + + "});\n" + + "/* assert on the output */\n\n" + + "This ensures that you're testing the behavior the user would see " + + "in the browser." + + " Learn more at https://reactjs.org/link/wrap-tests-with-act", + getComponentNameFromFiber(fiber) + ); + } finally { + if (previousFiber) { + setCurrentFiber(fiber); + } else { + resetCurrentFiber(); + } + } + } + } +} - { - // We intentionally reset, rather than copy, actualDuration & actualStartTime. - // This prevents time from endlessly accumulating in new commits. - // This has the downside of resetting values for different priority renders, - // But works for yielding (the common case) and should support resuming. - workInProgress.actualDuration = 0; - workInProgress.actualStartTime = -1; +function warnIfSuspenseResolutionNotWrappedWithActDEV(root) { + { + if ( + root.tag !== LegacyRoot && + isConcurrentActEnvironment() && + ReactCurrentActQueue.current === null + ) { + error( + "A suspended resource finished loading inside a test, but the event " + + "was not wrapped in act(...).\n\n" + + "When testing, code that resolves suspended data should be wrapped " + + "into act(...):\n\n" + + "act(() => {\n" + + " /* finish loading suspended data */\n" + + "});\n" + + "/* assert on the output */\n\n" + + "This ensures that you're testing the behavior the user would see " + + "in the browser." + + " Learn more at https://reactjs.org/link/wrap-tests-with-act" + ); } - } // Reset all effects except static ones. - // Static effects are not specific to a render. - - workInProgress.flags = current.flags & StaticMask; - workInProgress.childLanes = current.childLanes; - workInProgress.lanes = current.lanes; - workInProgress.child = current.child; - workInProgress.memoizedProps = current.memoizedProps; - workInProgress.memoizedState = current.memoizedState; - workInProgress.updateQueue = current.updateQueue; // Clone the dependencies object. This is mutated during the render phase, so - // it cannot be shared with the current fiber. + } +} - var currentDependencies = current.dependencies; - workInProgress.dependencies = - currentDependencies === null - ? null - : { - lanes: currentDependencies.lanes, - firstContext: currentDependencies.firstContext - }; // These will be overridden during the parent's reconciliation +function setIsRunningInsertionEffect(isRunning) { + { + isRunningInsertionEffect = isRunning; + } +} - workInProgress.sibling = current.sibling; - workInProgress.index = current.index; - workInProgress.ref = current.ref; - workInProgress.refCleanup = current.refCleanup; +/* eslint-disable react-internal/prod-error-codes */ +// Used by React Refresh runtime through DevTools Global Hook. +var resolveFamily = null; +var failedBoundaries = null; +var setRefreshHandler = function (handler) { { - workInProgress.selfBaseDuration = current.selfBaseDuration; - workInProgress.treeBaseDuration = current.treeBaseDuration; + resolveFamily = handler; } - +}; +function resolveFunctionForHotReloading(type) { { - workInProgress._debugNeedsRemount = current._debugNeedsRemount; + if (resolveFamily === null) { + // Hot reloading is disabled. + return type; + } - switch (workInProgress.tag) { - case IndeterminateComponent: - case FunctionComponent: - case SimpleMemoComponent: - workInProgress.type = resolveFunctionForHotReloading(current.type); - break; + var family = resolveFamily(type); - case ClassComponent: - workInProgress.type = resolveClassForHotReloading(current.type); - break; + if (family === undefined) { + return type; + } // Use the latest known implementation. - case ForwardRef: - workInProgress.type = resolveForwardRefForHotReloading(current.type); - break; - } + return family.current; } +} +function resolveClassForHotReloading(type) { + // No implementation differences. + return resolveFunctionForHotReloading(type); +} +function resolveForwardRefForHotReloading(type) { + { + if (resolveFamily === null) { + // Hot reloading is disabled. + return type; + } - return workInProgress; -} // Used to reuse a Fiber for a second pass. - -function resetWorkInProgress(workInProgress, renderLanes) { - // This resets the Fiber to what createFiber or createWorkInProgress would - // have set the values to before during the first pass. Ideally this wouldn't - // be necessary but unfortunately many code paths reads from the workInProgress - // when they should be reading from current and writing to workInProgress. - // We assume pendingProps, index, key, ref, return are still untouched to - // avoid doing another reconciliation. - // Reset the effect flags but keep any Placement tags, since that's something - // that child fiber is setting, not the reconciliation. - workInProgress.flags &= StaticMask | Placement; // The effects are no longer valid. + var family = resolveFamily(type); - var current = workInProgress.alternate; + if (family === undefined) { + // Check if we're dealing with a real forwardRef. Don't want to crash early. + if ( + type !== null && + type !== undefined && + typeof type.render === "function" + ) { + // ForwardRef is special because its resolved .type is an object, + // but it's possible that we only have its inner render function in the map. + // If that inner render function is different, we'll build a new forwardRef type. + var currentRender = resolveFunctionForHotReloading(type.render); - if (current === null) { - // Reset to createFiber's initial values. - workInProgress.childLanes = NoLanes; - workInProgress.lanes = renderLanes; - workInProgress.child = null; - workInProgress.subtreeFlags = NoFlags$1; - workInProgress.memoizedProps = null; - workInProgress.memoizedState = null; - workInProgress.updateQueue = null; - workInProgress.dependencies = null; - workInProgress.stateNode = null; + if (type.render !== currentRender) { + var syntheticType = { + $$typeof: REACT_FORWARD_REF_TYPE, + render: currentRender + }; - { - // Note: We don't reset the actualTime counts. It's useful to accumulate - // actual time across multiple render passes. - workInProgress.selfBaseDuration = 0; - workInProgress.treeBaseDuration = 0; - } - } else { - // Reset to the cloned values that createWorkInProgress would've. - workInProgress.childLanes = current.childLanes; - workInProgress.lanes = current.lanes; - workInProgress.child = current.child; - workInProgress.subtreeFlags = NoFlags$1; - workInProgress.deletions = null; - workInProgress.memoizedProps = current.memoizedProps; - workInProgress.memoizedState = current.memoizedState; - workInProgress.updateQueue = current.updateQueue; // Needed because Blocks store data on type. + if (type.displayName !== undefined) { + syntheticType.displayName = type.displayName; + } - workInProgress.type = current.type; // Clone the dependencies object. This is mutated during the render phase, so - // it cannot be shared with the current fiber. + return syntheticType; + } + } - var currentDependencies = current.dependencies; - workInProgress.dependencies = - currentDependencies === null - ? null - : { - lanes: currentDependencies.lanes, - firstContext: currentDependencies.firstContext - }; + return type; + } // Use the latest known implementation. - { - // Note: We don't reset the actualTime counts. It's useful to accumulate - // actual time across multiple render passes. - workInProgress.selfBaseDuration = current.selfBaseDuration; - workInProgress.treeBaseDuration = current.treeBaseDuration; - } + return family.current; } - - return workInProgress; } -function createHostRootFiber( - tag, - isStrictMode, - concurrentUpdatesByDefaultOverride -) { - var mode; - - if (tag === ConcurrentRoot) { - mode = ConcurrentMode; - - if (isStrictMode === true || createRootStrictEffectsByDefault) { - mode |= StrictLegacyMode | StrictEffectsMode; +function isCompatibleFamilyForHotReloading(fiber, element) { + { + if (resolveFamily === null) { + // Hot reloading is disabled. + return false; } - if ( - // Only for internal experiments. - concurrentUpdatesByDefaultOverride - ) { - mode |= ConcurrentUpdatesByDefaultMode; - } - } else { - mode = NoMode; - } + var prevType = fiber.elementType; + var nextType = element.type; // If we got here, we know types aren't === equal. - if (isDevToolsPresent) { - // Always collect profile timings when DevTools are present. - // This enables DevTools to start capturing timing at any point– - // Without some nodes in the tree having empty base times. - mode |= ProfileMode; - } + var needsCompareFamilies = false; + var $$typeofNextType = + typeof nextType === "object" && nextType !== null + ? nextType.$$typeof + : null; - return createFiber(HostRoot, null, null, mode); -} -function createFiberFromTypeAndProps( - type, // React$ElementType - key, - pendingProps, - owner, - mode, - lanes -) { - var fiberTag = IndeterminateComponent; // The resolved type is set if we know what the final type will be. I.e. it's not lazy. + switch (fiber.tag) { + case ClassComponent: { + if (typeof nextType === "function") { + needsCompareFamilies = true; + } - var resolvedType = type; + break; + } - if (typeof type === "function") { - if (shouldConstruct(type)) { - fiberTag = ClassComponent; + case FunctionComponent: { + if (typeof nextType === "function") { + needsCompareFamilies = true; + } else if ($$typeofNextType === REACT_LAZY_TYPE) { + // We don't know the inner type yet. + // We're going to assume that the lazy inner type is stable, + // and so it is sufficient to avoid reconciling it away. + // We're not going to unwrap or actually use the new lazy type. + needsCompareFamilies = true; + } - { - resolvedType = resolveClassForHotReloading(resolvedType); - } - } else { - { - resolvedType = resolveFunctionForHotReloading(resolvedType); + break; } - } - } else if (typeof type === "string") { - { - fiberTag = HostComponent; - } - } else { - getTag: switch (type) { - case REACT_FRAGMENT_TYPE: - return createFiberFromFragment(pendingProps.children, mode, lanes, key); - - case REACT_STRICT_MODE_TYPE: - fiberTag = Mode; - mode |= StrictLegacyMode; - if ((mode & ConcurrentMode) !== NoMode) { - // Strict effects should never run on legacy roots - mode |= StrictEffectsMode; + case ForwardRef: { + if ($$typeofNextType === REACT_FORWARD_REF_TYPE) { + needsCompareFamilies = true; + } else if ($$typeofNextType === REACT_LAZY_TYPE) { + needsCompareFamilies = true; } break; + } - case REACT_PROFILER_TYPE: - return createFiberFromProfiler(pendingProps, mode, lanes, key); + case MemoComponent: + case SimpleMemoComponent: { + if ($$typeofNextType === REACT_MEMO_TYPE) { + // TODO: if it was but can no longer be simple, + // we shouldn't set this. + needsCompareFamilies = true; + } else if ($$typeofNextType === REACT_LAZY_TYPE) { + needsCompareFamilies = true; + } - case REACT_SUSPENSE_TYPE: - return createFiberFromSuspense(pendingProps, mode, lanes, key); + break; + } - case REACT_SUSPENSE_LIST_TYPE: - return createFiberFromSuspenseList(pendingProps, mode, lanes, key); + default: + return false; + } // Check if both types have a family and it's the same one. - case REACT_OFFSCREEN_TYPE: - return createFiberFromOffscreen(pendingProps, mode, lanes, key); + if (needsCompareFamilies) { + // Note: memo() and forwardRef() we'll compare outer rather than inner type. + // This means both of them need to be registered to preserve state. + // If we unwrapped and compared the inner types for wrappers instead, + // then we would risk falsely saying two separate memo(Foo) + // calls are equivalent because they wrap the same Foo function. + var prevFamily = resolveFamily(prevType); // $FlowFixMe[not-a-function] found when upgrading Flow - case REACT_LEGACY_HIDDEN_TYPE: { - return createFiberFromLegacyHidden(pendingProps, mode, lanes, key); + if (prevFamily !== undefined && prevFamily === resolveFamily(nextType)) { + return true; } + } - // eslint-disable-next-line no-fallthrough + return false; + } +} +function markFailedErrorBoundaryForHotReloading(fiber) { + { + if (resolveFamily === null) { + // Hot reloading is disabled. + return; + } - case REACT_SCOPE_TYPE: + if (typeof WeakSet !== "function") { + return; + } - // eslint-disable-next-line no-fallthrough + if (failedBoundaries === null) { + failedBoundaries = new WeakSet(); + } - case REACT_CACHE_TYPE: + failedBoundaries.add(fiber); + } +} +var scheduleRefresh = function (root, update) { + { + if (resolveFamily === null) { + // Hot reloading is disabled. + return; + } - // eslint-disable-next-line no-fallthrough + var staleFamilies = update.staleFamilies, + updatedFamilies = update.updatedFamilies; + flushPassiveEffects(); + flushSync(function () { + scheduleFibersWithFamiliesRecursively( + root.current, + updatedFamilies, + staleFamilies + ); + }); + } +}; +var scheduleRoot = function (root, element) { + { + if (root.context !== emptyContextObject) { + // Super edge case: root has a legacy _renderSubtree context + // but we don't know the parentComponent so we can't pass it. + // Just ignore. We'll delete this with _renderSubtree code path later. + return; + } - case REACT_TRACING_MARKER_TYPE: + flushPassiveEffects(); + flushSync(function () { + updateContainer(element, root, null, null); + }); + } +}; - // eslint-disable-next-line no-fallthrough +function scheduleFibersWithFamiliesRecursively( + fiber, + updatedFamilies, + staleFamilies +) { + { + var alternate = fiber.alternate, + child = fiber.child, + sibling = fiber.sibling, + tag = fiber.tag, + type = fiber.type; + var candidateType = null; - case REACT_DEBUG_TRACING_MODE_TYPE: + switch (tag) { + case FunctionComponent: + case SimpleMemoComponent: + case ClassComponent: + candidateType = type; + break; - // eslint-disable-next-line no-fallthrough + case ForwardRef: + candidateType = type.render; + break; + } - default: { - if (typeof type === "object" && type !== null) { - switch (type.$$typeof) { - case REACT_PROVIDER_TYPE: - fiberTag = ContextProvider; - break getTag; + if (resolveFamily === null) { + throw new Error("Expected resolveFamily to be set during hot reload."); + } - case REACT_CONTEXT_TYPE: - // This is a consumer - fiberTag = ContextConsumer; - break getTag; + var needsRender = false; + var needsRemount = false; - case REACT_FORWARD_REF_TYPE: - fiberTag = ForwardRef; + if (candidateType !== null) { + var family = resolveFamily(candidateType); - { - resolvedType = resolveForwardRefForHotReloading(resolvedType); - } + if (family !== undefined) { + if (staleFamilies.has(family)) { + needsRemount = true; + } else if (updatedFamilies.has(family)) { + if (tag === ClassComponent) { + needsRemount = true; + } else { + needsRender = true; + } + } + } + } - break getTag; + if (failedBoundaries !== null) { + if ( + failedBoundaries.has(fiber) || // $FlowFixMe[incompatible-use] found when upgrading Flow + (alternate !== null && failedBoundaries.has(alternate)) + ) { + needsRemount = true; + } + } - case REACT_MEMO_TYPE: - fiberTag = MemoComponent; - break getTag; + if (needsRemount) { + fiber._debugNeedsRemount = true; + } - case REACT_LAZY_TYPE: - fiberTag = LazyComponent; - resolvedType = null; - break getTag; - } - } + if (needsRemount || needsRender) { + var root = enqueueConcurrentRenderForLane(fiber, SyncLane); - var info = ""; + if (root !== null) { + scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); + } + } - { - if ( - type === undefined || - (typeof type === "object" && - type !== null && - Object.keys(type).length === 0) - ) { - info += - " You likely forgot to export your component from the file " + - "it's defined in, or you might have mixed up default and " + - "named imports."; - } + if (child !== null && !needsRemount) { + scheduleFibersWithFamiliesRecursively( + child, + updatedFamilies, + staleFamilies + ); + } - var ownerName = owner ? getComponentNameFromFiber(owner) : null; + if (sibling !== null) { + scheduleFibersWithFamiliesRecursively( + sibling, + updatedFamilies, + staleFamilies + ); + } + } +} - if (ownerName) { - info += "\n\nCheck the render method of `" + ownerName + "`."; - } - } +var findHostInstancesForRefresh = function (root, families) { + { + var hostInstances = new Set(); + var types = new Set( + families.map(function (family) { + return family.current; + }) + ); + findHostInstancesForMatchingFibersRecursively( + root.current, + types, + hostInstances + ); + return hostInstances; + } +}; + +function findHostInstancesForMatchingFibersRecursively( + fiber, + types, + hostInstances +) { + { + var child = fiber.child, + sibling = fiber.sibling, + tag = fiber.tag, + type = fiber.type; + var candidateType = null; + + switch (tag) { + case FunctionComponent: + case SimpleMemoComponent: + case ClassComponent: + candidateType = type; + break; + + case ForwardRef: + candidateType = type.render; + break; + } + + var didMatch = false; - throw new Error( - "Element type is invalid: expected a string (for built-in " + - "components) or a class/function (for composite components) " + - ("but got: " + (type == null ? type : typeof type) + "." + info) - ); + if (candidateType !== null) { + if (types.has(candidateType)) { + didMatch = true; } } - } - var fiber = createFiber(fiberTag, pendingProps, key, mode); - fiber.elementType = type; - fiber.type = resolvedType; - fiber.lanes = lanes; + if (didMatch) { + // We have a match. This only drills down to the closest host components. + // There's no need to search deeper because for the purpose of giving + // visual feedback, "flashing" outermost parent rectangles is sufficient. + findHostInstancesForFiberShallowly(fiber, hostInstances); + } else { + // If there's no match, maybe there will be one further down in the child tree. + if (child !== null) { + findHostInstancesForMatchingFibersRecursively( + child, + types, + hostInstances + ); + } + } - { - fiber._debugOwner = owner; + if (sibling !== null) { + findHostInstancesForMatchingFibersRecursively( + sibling, + types, + hostInstances + ); + } } - - return fiber; } -function createFiberFromElement(element, mode, lanes) { - var owner = null; +function findHostInstancesForFiberShallowly(fiber, hostInstances) { { - owner = element._owner; - } + var foundHostInstances = findChildHostInstancesForFiberShallowly( + fiber, + hostInstances + ); - var type = element.type; - var key = element.key; - var pendingProps = element.props; - var fiber = createFiberFromTypeAndProps( - type, - key, - pendingProps, - owner, - mode, - lanes - ); + if (foundHostInstances) { + return; + } // If we didn't find any host children, fallback to closest host parent. - { - fiber._debugSource = element._source; - fiber._debugOwner = element._owner; - } + var node = fiber; - return fiber; -} -function createFiberFromFragment(elements, mode, lanes, key) { - var fiber = createFiber(Fragment, elements, key, mode); - fiber.lanes = lanes; - return fiber; -} + while (true) { + switch (node.tag) { + case HostSingleton: + case HostComponent: + hostInstances.add(node.stateNode); + return; -function createFiberFromProfiler(pendingProps, mode, lanes, key) { - { - if (typeof pendingProps.id !== "string") { - error( - 'Profiler must specify an "id" of type `string` as a prop. Received the type `%s` instead.', - typeof pendingProps.id - ); + case HostPortal: + hostInstances.add(node.stateNode.containerInfo); + return; + + case HostRoot: + hostInstances.add(node.stateNode.containerInfo); + return; + } + + if (node.return === null) { + throw new Error("Expected to reach root first."); + } + + node = node.return; } } +} - var fiber = createFiber(Profiler, pendingProps, key, mode | ProfileMode); - fiber.elementType = REACT_PROFILER_TYPE; - fiber.lanes = lanes; - +function findChildHostInstancesForFiberShallowly(fiber, hostInstances) { { - fiber.stateNode = { - effectDuration: 0, - passiveEffectDuration: 0 - }; - } + var node = fiber; + var foundHostInstances = false; - return fiber; -} + while (true) { + if (node.tag === HostComponent || node.tag === HostHoistable || false) { + // We got a match. + foundHostInstances = true; + hostInstances.add(node.stateNode); // There may still be more, so keep searching. + } else if (node.child !== null) { + node.child.return = node; + node = node.child; + continue; + } -function createFiberFromSuspense(pendingProps, mode, lanes, key) { - var fiber = createFiber(SuspenseComponent, pendingProps, key, mode); - fiber.elementType = REACT_SUSPENSE_TYPE; - fiber.lanes = lanes; - return fiber; -} -function createFiberFromSuspenseList(pendingProps, mode, lanes, key) { - var fiber = createFiber(SuspenseListComponent, pendingProps, key, mode); - fiber.elementType = REACT_SUSPENSE_LIST_TYPE; - fiber.lanes = lanes; - return fiber; -} -function createFiberFromOffscreen(pendingProps, mode, lanes, key) { - var fiber = createFiber(OffscreenComponent, pendingProps, key, mode); - fiber.elementType = REACT_OFFSCREEN_TYPE; - fiber.lanes = lanes; - var primaryChildInstance = { - _visibility: OffscreenVisible, - _pendingVisibility: OffscreenVisible, - _pendingMarkers: null, - _retryCache: null, - _transitions: null, - _current: null, - detach: function () { - return detachOffscreenInstance(primaryChildInstance); - }, - attach: function () { - return attachOffscreenInstance(primaryChildInstance); - } - }; - fiber.stateNode = primaryChildInstance; - return fiber; -} -function createFiberFromLegacyHidden(pendingProps, mode, lanes, key) { - var fiber = createFiber(LegacyHiddenComponent, pendingProps, key, mode); - fiber.elementType = REACT_LEGACY_HIDDEN_TYPE; - fiber.lanes = lanes; // Adding a stateNode for legacy hidden because it's currently using - // the offscreen implementation, which depends on a state node + if (node === fiber) { + return foundHostInstances; + } - var instance = { - _visibility: OffscreenVisible, - _pendingVisibility: OffscreenVisible, - _pendingMarkers: null, - _transitions: null, - _retryCache: null, - _current: null, - detach: function () { - return detachOffscreenInstance(instance); - }, - attach: function () { - return attachOffscreenInstance(instance); + while (node.sibling === null) { + if (node.return === null || node.return === fiber) { + return foundHostInstances; + } + + node = node.return; + } + + node.sibling.return = node.return; + node = node.sibling; } - }; - fiber.stateNode = instance; - return fiber; -} -function createFiberFromText(content, mode, lanes) { - var fiber = createFiber(HostText, content, null, mode); - fiber.lanes = lanes; - return fiber; + } + + return false; } -function createFiberFromPortal(portal, mode, lanes) { - var pendingProps = portal.children !== null ? portal.children : []; - var fiber = createFiber(HostPortal, pendingProps, portal.key, mode); - fiber.lanes = lanes; - fiber.stateNode = { - containerInfo: portal.containerInfo, - pendingChildren: null, - // Used by persistent updates - implementation: portal.implementation - }; - return fiber; -} // Used for stashing WIP properties to replay failed work in DEV. -function assignFiberPropertiesInDEV(target, source) { - if (target === null) { - // This Fiber's initial properties will always be overwritten. - // We only use a Fiber to ensure the same hidden class so DEV isn't slow. - target = createFiber(IndeterminateComponent, null, null, NoMode); - } // This is intentionally written as a list of all properties. - // We tried to use Object.assign() instead but this is called in - // the hottest path, and Object.assign() was too slow: - // https://github.com/facebook/react/issues/12502 - // This code is DEV-only so size is not a concern. +var hasBadMapPolyfill; - target.tag = source.tag; - target.key = source.key; - target.elementType = source.elementType; - target.type = source.type; - target.stateNode = source.stateNode; - target.return = source.return; - target.child = source.child; - target.sibling = source.sibling; - target.index = source.index; - target.ref = source.ref; - target.refCleanup = source.refCleanup; - target.pendingProps = source.pendingProps; - target.memoizedProps = source.memoizedProps; - target.updateQueue = source.updateQueue; - target.memoizedState = source.memoizedState; - target.dependencies = source.dependencies; - target.mode = source.mode; - target.flags = source.flags; - target.subtreeFlags = source.subtreeFlags; - target.deletions = source.deletions; - target.lanes = source.lanes; - target.childLanes = source.childLanes; - target.alternate = source.alternate; +{ + hasBadMapPolyfill = false; - { - target.actualDuration = source.actualDuration; - target.actualStartTime = source.actualStartTime; - target.selfBaseDuration = source.selfBaseDuration; - target.treeBaseDuration = source.treeBaseDuration; - } + try { + var nonExtensibleObject = Object.preventExtensions({}); + /* eslint-disable no-new */ - target._debugSource = source._debugSource; - target._debugOwner = source._debugOwner; - target._debugNeedsRemount = source._debugNeedsRemount; - target._debugHookTypes = source._debugHookTypes; - return target; + new Map([[nonExtensibleObject, null]]); + new Set([nonExtensibleObject]); + /* eslint-enable no-new */ + } catch (e) { + // TODO: Consider warning about bad polyfills + hasBadMapPolyfill = true; + } } -function FiberRootNode( - containerInfo, // $FlowFixMe[missing-local-annot] - tag, - hydrate, - identifierPrefix, - onRecoverableError -) { +function FiberNode(tag, pendingProps, key, mode) { + // Instance this.tag = tag; - this.containerInfo = containerInfo; - this.pendingChildren = null; - this.current = null; - this.pingCache = null; - this.finishedWork = null; - this.timeoutHandle = noTimeout; - this.cancelPendingCommit = null; - this.context = null; - this.pendingContext = null; - this.callbackNode = null; - this.callbackPriority = NoLane; - this.eventTimes = createLaneMap(NoLanes); - this.expirationTimes = createLaneMap(NoTimestamp); - this.pendingLanes = NoLanes; - this.suspendedLanes = NoLanes; - this.pingedLanes = NoLanes; - this.expiredLanes = NoLanes; - this.mutableReadLanes = NoLanes; - this.finishedLanes = NoLanes; - this.errorRecoveryDisabledLanes = NoLanes; - this.entangledLanes = NoLanes; - this.entanglements = createLaneMap(NoLanes); - this.hiddenUpdates = createLaneMap(null); - this.identifierPrefix = identifierPrefix; - this.onRecoverableError = onRecoverableError; + this.key = key; + this.elementType = null; + this.type = null; + this.stateNode = null; // Fiber - this.incompleteTransitions = new Map(); + this.return = null; + this.child = null; + this.sibling = null; + this.index = 0; + this.ref = null; + this.refCleanup = null; + this.pendingProps = pendingProps; + this.memoizedProps = null; + this.updateQueue = null; + this.memoizedState = null; + this.dependencies = null; + this.mode = mode; // Effects - { - this.effectDuration = 0; - this.passiveEffectDuration = 0; - } + this.flags = NoFlags$1; + this.subtreeFlags = NoFlags$1; + this.deletions = null; + this.lanes = NoLanes; + this.childLanes = NoLanes; + this.alternate = null; { - this.memoizedUpdaters = new Set(); - var pendingUpdatersLaneMap = (this.pendingUpdatersLaneMap = []); + // Note: The following is done to avoid a v8 performance cliff. + // + // Initializing the fields below to smis and later updating them with + // double values will cause Fibers to end up having separate shapes. + // This behavior/bug has something to do with Object.preventExtension(). + // Fortunately this only impacts DEV builds. + // Unfortunately it makes React unusably slow for some applications. + // To work around this, initialize the fields below with doubles. + // + // Learn more about this here: + // https://github.com/facebook/react/issues/14365 + // https://bugs.chromium.org/p/v8/issues/detail?id=8538 + this.actualDuration = Number.NaN; + this.actualStartTime = Number.NaN; + this.selfBaseDuration = Number.NaN; + this.treeBaseDuration = Number.NaN; // It's okay to replace the initial doubles with smis after initialization. + // This won't trigger the performance cliff mentioned above, + // and it simplifies other profiler code (including DevTools). - for (var _i = 0; _i < TotalLanes; _i++) { - pendingUpdatersLaneMap.push(new Set()); - } + this.actualDuration = 0; + this.actualStartTime = -1; + this.selfBaseDuration = 0; + this.treeBaseDuration = 0; } { - switch (tag) { - case ConcurrentRoot: - this._debugRootType = hydrate ? "hydrateRoot()" : "createRoot()"; - break; + // This isn't directly used but is handy for debugging internals: + this._debugSource = null; + this._debugOwner = null; + this._debugNeedsRemount = false; + this._debugHookTypes = null; - case LegacyRoot: - this._debugRootType = hydrate ? "hydrate()" : "render()"; - break; + if (!hasBadMapPolyfill && typeof Object.preventExtensions === "function") { + Object.preventExtensions(this); } } +} // This is a constructor function, rather than a POJO constructor, still +// please ensure we do the following: +// 1) Nobody should add any instance methods on this. Instance methods can be +// more difficult to predict when they get optimized and they are almost +// never inlined properly in static compilers. +// 2) Nobody should rely on `instanceof Fiber` for type testing. We should +// always know when it is a fiber. +// 3) We might want to experiment with using numeric keys since they are easier +// to optimize in a non-JIT environment. +// 4) We can easily go from a constructor to a createFiber object literal if that +// is faster. +// 5) It should be easy to port this to a C struct and keep a C implementation +// compatible. + +function createFiber(tag, pendingProps, key, mode) { + // $FlowFixMe: the shapes are exact here but Flow doesn't like constructors + return new FiberNode(tag, pendingProps, key, mode); } -function createFiberRoot( - containerInfo, - tag, - hydrate, - initialChildren, - hydrationCallbacks, - isStrictMode, - concurrentUpdatesByDefaultOverride, // TODO: We have several of these arguments that are conceptually part of the - // host config, but because they are passed in at runtime, we have to thread - // them through the root constructor. Perhaps we should put them all into a - // single type, like a DynamicHostConfig that is defined by the renderer. - identifierPrefix, - onRecoverableError, - transitionCallbacks -) { - // $FlowFixMe[invalid-constructor] Flow no longer supports calling new on functions - var root = new FiberRootNode( - containerInfo, - tag, - hydrate, - identifierPrefix, - onRecoverableError - ); - // stateNode is any. +function shouldConstruct(Component) { + var prototype = Component.prototype; + return !!(prototype && prototype.isReactComponent); +} - var uninitializedFiber = createHostRootFiber( - tag, - isStrictMode, - concurrentUpdatesByDefaultOverride +function isSimpleFunctionComponent(type) { + return ( + typeof type === "function" && + !shouldConstruct(type) && + type.defaultProps === undefined ); - root.current = uninitializedFiber; - uninitializedFiber.stateNode = root; +} +function resolveLazyComponentTag(Component) { + if (typeof Component === "function") { + return shouldConstruct(Component) ? ClassComponent : FunctionComponent; + } else if (Component !== undefined && Component !== null) { + var $$typeof = Component.$$typeof; - { - var _initialState = { - element: initialChildren, - isDehydrated: hydrate, - cache: null // not enabled yet - }; - uninitializedFiber.memoizedState = _initialState; + if ($$typeof === REACT_FORWARD_REF_TYPE) { + return ForwardRef; + } + + if ($$typeof === REACT_MEMO_TYPE) { + return MemoComponent; + } } - initializeUpdateQueue(uninitializedFiber); - return root; -} + return IndeterminateComponent; +} // This is used to create an alternate fiber to do work on. -var ReactVersion = "18.3.0-next-f77099b6f-20230322"; +function createWorkInProgress(current, pendingProps) { + var workInProgress = current.alternate; -function createPortal$1( - children, - containerInfo, // TODO: figure out the API for cross-renderer implementation. - implementation -) { - var key = - arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null; + if (workInProgress === null) { + // We use a double buffering pooling technique because we know that we'll + // only ever need at most two versions of a tree. We pool the "other" unused + // node that we're free to reuse. This is lazily created to avoid allocating + // extra objects for things that are never updated. It also allow us to + // reclaim the extra memory if needed. + workInProgress = createFiber( + current.tag, + pendingProps, + current.key, + current.mode + ); + workInProgress.elementType = current.elementType; + workInProgress.type = current.type; + workInProgress.stateNode = current.stateNode; - { - checkKeyStringCoercion(key); - } + { + // DEV-only fields + workInProgress._debugSource = current._debugSource; + workInProgress._debugOwner = current._debugOwner; + workInProgress._debugHookTypes = current._debugHookTypes; + } - return { - // This tag allow us to uniquely identify this as a React Portal - $$typeof: REACT_PORTAL_TYPE, - key: key == null ? null : "" + key, - children: children, - containerInfo: containerInfo, - implementation: implementation - }; -} + workInProgress.alternate = current; + current.alternate = workInProgress; + } else { + workInProgress.pendingProps = pendingProps; // Needed because Blocks store data on type. + + workInProgress.type = current.type; // We already have an alternate. + // Reset the effect tag. + + workInProgress.flags = NoFlags$1; // The effects are no longer valid. + + workInProgress.subtreeFlags = NoFlags$1; + workInProgress.deletions = null; + + { + // We intentionally reset, rather than copy, actualDuration & actualStartTime. + // This prevents time from endlessly accumulating in new commits. + // This has the downside of resetting values for different priority renders, + // But works for yielding (the common case) and should support resuming. + workInProgress.actualDuration = 0; + workInProgress.actualStartTime = -1; + } + } // Reset all effects except static ones. + // Static effects are not specific to a render. -// Might add PROFILE later. + workInProgress.flags = current.flags & StaticMask; + workInProgress.childLanes = current.childLanes; + workInProgress.lanes = current.lanes; + workInProgress.child = current.child; + workInProgress.memoizedProps = current.memoizedProps; + workInProgress.memoizedState = current.memoizedState; + workInProgress.updateQueue = current.updateQueue; // Clone the dependencies object. This is mutated during the render phase, so + // it cannot be shared with the current fiber. -var didWarnAboutNestedUpdates; -var didWarnAboutFindNodeInStrictMode; + var currentDependencies = current.dependencies; + workInProgress.dependencies = + currentDependencies === null + ? null + : { + lanes: currentDependencies.lanes, + firstContext: currentDependencies.firstContext + }; // These will be overridden during the parent's reconciliation -{ - didWarnAboutNestedUpdates = false; - didWarnAboutFindNodeInStrictMode = {}; -} + workInProgress.sibling = current.sibling; + workInProgress.index = current.index; + workInProgress.ref = current.ref; + workInProgress.refCleanup = current.refCleanup; -function getContextForSubtree(parentComponent) { - if (!parentComponent) { - return emptyContextObject; + { + workInProgress.selfBaseDuration = current.selfBaseDuration; + workInProgress.treeBaseDuration = current.treeBaseDuration; } - var fiber = get(parentComponent); - var parentContext = findCurrentUnmaskedContext(fiber); + { + workInProgress._debugNeedsRemount = current._debugNeedsRemount; - if (fiber.tag === ClassComponent) { - var Component = fiber.type; + switch (workInProgress.tag) { + case IndeterminateComponent: + case FunctionComponent: + case SimpleMemoComponent: + workInProgress.type = resolveFunctionForHotReloading(current.type); + break; - if (isContextProvider(Component)) { - return processChildContext(fiber, Component, parentContext); + case ClassComponent: + workInProgress.type = resolveClassForHotReloading(current.type); + break; + + case ForwardRef: + workInProgress.type = resolveForwardRefForHotReloading(current.type); + break; } } - return parentContext; -} + return workInProgress; +} // Used to reuse a Fiber for a second pass. -function findHostInstanceWithWarning(component, methodName) { - { - var fiber = get(component); +function resetWorkInProgress(workInProgress, renderLanes) { + // This resets the Fiber to what createFiber or createWorkInProgress would + // have set the values to before during the first pass. Ideally this wouldn't + // be necessary but unfortunately many code paths reads from the workInProgress + // when they should be reading from current and writing to workInProgress. + // We assume pendingProps, index, key, ref, return are still untouched to + // avoid doing another reconciliation. + // Reset the effect flags but keep any Placement tags, since that's something + // that child fiber is setting, not the reconciliation. + workInProgress.flags &= StaticMask | Placement; // The effects are no longer valid. - if (fiber === undefined) { - if (typeof component.render === "function") { - throw new Error("Unable to find node on an unmounted component."); - } else { - var keys = Object.keys(component).join(","); - throw new Error( - "Argument appears to not be a ReactComponent. Keys: " + keys - ); - } - } + var current = workInProgress.alternate; - var hostFiber = findCurrentHostFiber(fiber); + if (current === null) { + // Reset to createFiber's initial values. + workInProgress.childLanes = NoLanes; + workInProgress.lanes = renderLanes; + workInProgress.child = null; + workInProgress.subtreeFlags = NoFlags$1; + workInProgress.memoizedProps = null; + workInProgress.memoizedState = null; + workInProgress.updateQueue = null; + workInProgress.dependencies = null; + workInProgress.stateNode = null; - if (hostFiber === null) { - return null; + { + // Note: We don't reset the actualTime counts. It's useful to accumulate + // actual time across multiple render passes. + workInProgress.selfBaseDuration = 0; + workInProgress.treeBaseDuration = 0; } + } else { + // Reset to the cloned values that createWorkInProgress would've. + workInProgress.childLanes = current.childLanes; + workInProgress.lanes = current.lanes; + workInProgress.child = current.child; + workInProgress.subtreeFlags = NoFlags$1; + workInProgress.deletions = null; + workInProgress.memoizedProps = current.memoizedProps; + workInProgress.memoizedState = current.memoizedState; + workInProgress.updateQueue = current.updateQueue; // Needed because Blocks store data on type. - if (hostFiber.mode & StrictLegacyMode) { - var componentName = getComponentNameFromFiber(fiber) || "Component"; - - if (!didWarnAboutFindNodeInStrictMode[componentName]) { - didWarnAboutFindNodeInStrictMode[componentName] = true; - var previousFiber = current; + workInProgress.type = current.type; // Clone the dependencies object. This is mutated during the render phase, so + // it cannot be shared with the current fiber. - try { - setCurrentFiber(hostFiber); + var currentDependencies = current.dependencies; + workInProgress.dependencies = + currentDependencies === null + ? null + : { + lanes: currentDependencies.lanes, + firstContext: currentDependencies.firstContext + }; - if (fiber.mode & StrictLegacyMode) { - error( - "%s is deprecated in StrictMode. " + - "%s was passed an instance of %s which is inside StrictMode. " + - "Instead, add a ref directly to the element you want to reference. " + - "Learn more about using refs safely here: " + - "https://reactjs.org/link/strict-mode-find-node", - methodName, - methodName, - componentName - ); - } else { - error( - "%s is deprecated in StrictMode. " + - "%s was passed an instance of %s which renders StrictMode children. " + - "Instead, add a ref directly to the element you want to reference. " + - "Learn more about using refs safely here: " + - "https://reactjs.org/link/strict-mode-find-node", - methodName, - methodName, - componentName - ); - } - } finally { - // Ideally this should reset to previous but this shouldn't be called in - // render and there's another warning for that anyway. - if (previousFiber) { - setCurrentFiber(previousFiber); - } else { - resetCurrentFiber(); - } - } - } + { + // Note: We don't reset the actualTime counts. It's useful to accumulate + // actual time across multiple render passes. + workInProgress.selfBaseDuration = current.selfBaseDuration; + workInProgress.treeBaseDuration = current.treeBaseDuration; } - - return getPublicInstance(hostFiber.stateNode); } -} -function createContainer( - containerInfo, + return workInProgress; +} +function createHostRootFiber( tag, - hydrationCallbacks, isStrictMode, - concurrentUpdatesByDefaultOverride, - identifierPrefix, - onRecoverableError, - transitionCallbacks + concurrentUpdatesByDefaultOverride ) { - var hydrate = false; - var initialChildren = null; - return createFiberRoot( - containerInfo, - tag, - hydrate, - initialChildren, - hydrationCallbacks, - isStrictMode, - concurrentUpdatesByDefaultOverride, - identifierPrefix, - onRecoverableError - ); -} -function updateContainer(element, container, parentComponent, callback) { - { - onScheduleRoot(container, element); - } - - var current$1 = container.current; - var lane = requestUpdateLane(current$1); + var mode; - { - markRenderScheduled(lane); - } + if (tag === ConcurrentRoot) { + mode = ConcurrentMode; - var context = getContextForSubtree(parentComponent); + if (isStrictMode === true || createRootStrictEffectsByDefault) { + mode |= StrictLegacyMode | StrictEffectsMode; + } - if (container.context === null) { - container.context = context; + if ( + // Only for internal experiments. + concurrentUpdatesByDefaultOverride + ) { + mode |= ConcurrentUpdatesByDefaultMode; + } } else { - container.pendingContext = context; + mode = NoMode; } - { - if (isRendering && current !== null && !didWarnAboutNestedUpdates) { - didWarnAboutNestedUpdates = true; - - error( - "Render methods should be a pure function of props and state; " + - "triggering nested component updates from render is not allowed. " + - "If necessary, trigger nested updates in componentDidUpdate.\n\n" + - "Check the render method of %s.", - getComponentNameFromFiber(current) || "Unknown" - ); - } + if (isDevToolsPresent) { + // Always collect profile timings when DevTools are present. + // This enables DevTools to start capturing timing at any point– + // Without some nodes in the tree having empty base times. + mode |= ProfileMode; } - var update = createUpdate(lane); // Caution: React DevTools currently depends on this property - // being called "element". + return createFiber(HostRoot, null, null, mode); +} +function createFiberFromTypeAndProps( + type, // React$ElementType + key, + pendingProps, + owner, + mode, + lanes +) { + var fiberTag = IndeterminateComponent; // The resolved type is set if we know what the final type will be. I.e. it's not lazy. + + var resolvedType = type; - update.payload = { - element: element - }; - callback = callback === undefined ? null : callback; + if (typeof type === "function") { + if (shouldConstruct(type)) { + fiberTag = ClassComponent; - if (callback !== null) { - { - if (typeof callback !== "function") { - error( - "render(...): Expected the last optional `callback` argument to be a " + - "function. Instead received: %s.", - callback - ); + { + resolvedType = resolveClassForHotReloading(resolvedType); + } + } else { + { + resolvedType = resolveFunctionForHotReloading(resolvedType); } } + } else if (typeof type === "string") { + { + fiberTag = HostComponent; + } + } else { + getTag: switch (type) { + case REACT_FRAGMENT_TYPE: + return createFiberFromFragment(pendingProps.children, mode, lanes, key); - update.callback = callback; - } + case REACT_STRICT_MODE_TYPE: + fiberTag = Mode; + mode |= StrictLegacyMode; - var root = enqueueUpdate(current$1, update, lane); + if ((mode & ConcurrentMode) !== NoMode) { + // Strict effects should never run on legacy roots + mode |= StrictEffectsMode; + } - if (root !== null) { - var eventTime = requestEventTime(); - scheduleUpdateOnFiber(root, current$1, lane, eventTime); - entangleTransitions(root, current$1, lane); - } + break; - return lane; -} -function getPublicRootInstance(container) { - var containerFiber = container.current; + case REACT_PROFILER_TYPE: + return createFiberFromProfiler(pendingProps, mode, lanes, key); - if (!containerFiber.child) { - return null; - } + case REACT_SUSPENSE_TYPE: + return createFiberFromSuspense(pendingProps, mode, lanes, key); - switch (containerFiber.child.tag) { - case HostSingleton: - case HostComponent: - return getPublicInstance(containerFiber.child.stateNode); + case REACT_SUSPENSE_LIST_TYPE: + return createFiberFromSuspenseList(pendingProps, mode, lanes, key); - default: - return containerFiber.child.stateNode; - } -} + case REACT_OFFSCREEN_TYPE: + return createFiberFromOffscreen(pendingProps, mode, lanes, key); -var shouldErrorImpl = function (fiber) { - return null; -}; + case REACT_LEGACY_HIDDEN_TYPE: { + return createFiberFromLegacyHidden(pendingProps, mode, lanes, key); + } -function shouldError(fiber) { - return shouldErrorImpl(fiber); -} + // eslint-disable-next-line no-fallthrough -var shouldSuspendImpl = function (fiber) { - return false; -}; + case REACT_SCOPE_TYPE: -function shouldSuspend(fiber) { - return shouldSuspendImpl(fiber); -} -var overrideHookState = null; -var overrideHookStateDeletePath = null; -var overrideHookStateRenamePath = null; -var overrideProps = null; -var overridePropsDeletePath = null; -var overridePropsRenamePath = null; -var scheduleUpdate = null; -var setErrorHandler = null; -var setSuspenseHandler = null; + // eslint-disable-next-line no-fallthrough -{ - var copyWithDeleteImpl = function (obj, path, index) { - var key = path[index]; - var updated = isArray(obj) ? obj.slice() : assign({}, obj); + case REACT_CACHE_TYPE: - if (index + 1 === path.length) { - if (isArray(updated)) { - updated.splice(key, 1); - } else { - delete updated[key]; - } + // eslint-disable-next-line no-fallthrough - return updated; - } // $FlowFixMe number or string is fine here + case REACT_TRACING_MARKER_TYPE: - updated[key] = copyWithDeleteImpl(obj[key], path, index + 1); - return updated; - }; + // eslint-disable-next-line no-fallthrough - var copyWithDelete = function (obj, path) { - return copyWithDeleteImpl(obj, path, 0); - }; + case REACT_DEBUG_TRACING_MODE_TYPE: - var copyWithRenameImpl = function (obj, oldPath, newPath, index) { - var oldKey = oldPath[index]; - var updated = isArray(obj) ? obj.slice() : assign({}, obj); + // eslint-disable-next-line no-fallthrough - if (index + 1 === oldPath.length) { - var newKey = newPath[index]; // $FlowFixMe number or string is fine here + default: { + if (typeof type === "object" && type !== null) { + switch (type.$$typeof) { + case REACT_PROVIDER_TYPE: + fiberTag = ContextProvider; + break getTag; - updated[newKey] = updated[oldKey]; + case REACT_CONTEXT_TYPE: + // This is a consumer + fiberTag = ContextConsumer; + break getTag; - if (isArray(updated)) { - updated.splice(oldKey, 1); - } else { - delete updated[oldKey]; - } - } else { - // $FlowFixMe number or string is fine here - updated[oldKey] = copyWithRenameImpl( - // $FlowFixMe number or string is fine here - obj[oldKey], - oldPath, - newPath, - index + 1 - ); - } + case REACT_FORWARD_REF_TYPE: + fiberTag = ForwardRef; - return updated; - }; + { + resolvedType = resolveForwardRefForHotReloading(resolvedType); + } - var copyWithRename = function (obj, oldPath, newPath) { - if (oldPath.length !== newPath.length) { - warn("copyWithRename() expects paths of the same length"); + break getTag; - return; - } else { - for (var i = 0; i < newPath.length - 1; i++) { - if (oldPath[i] !== newPath[i]) { - warn( - "copyWithRename() expects paths to be the same except for the deepest key" - ); + case REACT_MEMO_TYPE: + fiberTag = MemoComponent; + break getTag; - return; + case REACT_LAZY_TYPE: + fiberTag = LazyComponent; + resolvedType = null; + break getTag; + } } - } - } - - return copyWithRenameImpl(obj, oldPath, newPath, 0); - }; - - var copyWithSetImpl = function (obj, path, index, value) { - if (index >= path.length) { - return value; - } - var key = path[index]; - var updated = isArray(obj) ? obj.slice() : assign({}, obj); // $FlowFixMe number or string is fine here + var info = ""; - updated[key] = copyWithSetImpl(obj[key], path, index + 1, value); - return updated; - }; + { + if ( + type === undefined || + (typeof type === "object" && + type !== null && + Object.keys(type).length === 0) + ) { + info += + " You likely forgot to export your component from the file " + + "it's defined in, or you might have mixed up default and " + + "named imports."; + } - var copyWithSet = function (obj, path, value) { - return copyWithSetImpl(obj, path, 0, value); - }; + var ownerName = owner ? getComponentNameFromFiber(owner) : null; - var findHook = function (fiber, id) { - // For now, the "id" of stateful hooks is just the stateful hook index. - // This may change in the future with e.g. nested hooks. - var currentHook = fiber.memoizedState; + if (ownerName) { + info += "\n\nCheck the render method of `" + ownerName + "`."; + } + } - while (currentHook !== null && id > 0) { - currentHook = currentHook.next; - id--; + throw new Error( + "Element type is invalid: expected a string (for built-in " + + "components) or a class/function (for composite components) " + + ("but got: " + (type == null ? type : typeof type) + "." + info) + ); + } } + } - return currentHook; - }; // Support DevTools editable values for useState and useReducer. - - overrideHookState = function (fiber, id, path, value) { - var hook = findHook(fiber, id); + var fiber = createFiber(fiberTag, pendingProps, key, mode); + fiber.elementType = type; + fiber.type = resolvedType; + fiber.lanes = lanes; - if (hook !== null) { - var newState = copyWithSet(hook.memoizedState, path, value); - hook.memoizedState = newState; - hook.baseState = newState; // We aren't actually adding an update to the queue, - // because there is no update we can add for useReducer hooks that won't trigger an error. - // (There's no appropriate action type for DevTools overrides.) - // As a result though, React will see the scheduled update as a noop and bailout. - // Shallow cloning props works as a workaround for now to bypass the bailout check. + { + fiber._debugOwner = owner; + } - fiber.memoizedProps = assign({}, fiber.memoizedProps); - var root = enqueueConcurrentRenderForLane(fiber, SyncLane); + return fiber; +} +function createFiberFromElement(element, mode, lanes) { + var owner = null; - if (root !== null) { - scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); - } - } - }; + { + owner = element._owner; + } - overrideHookStateDeletePath = function (fiber, id, path) { - var hook = findHook(fiber, id); + var type = element.type; + var key = element.key; + var pendingProps = element.props; + var fiber = createFiberFromTypeAndProps( + type, + key, + pendingProps, + owner, + mode, + lanes + ); - if (hook !== null) { - var newState = copyWithDelete(hook.memoizedState, path); - hook.memoizedState = newState; - hook.baseState = newState; // We aren't actually adding an update to the queue, - // because there is no update we can add for useReducer hooks that won't trigger an error. - // (There's no appropriate action type for DevTools overrides.) - // As a result though, React will see the scheduled update as a noop and bailout. - // Shallow cloning props works as a workaround for now to bypass the bailout check. + { + fiber._debugSource = element._source; + fiber._debugOwner = element._owner; + } - fiber.memoizedProps = assign({}, fiber.memoizedProps); - var root = enqueueConcurrentRenderForLane(fiber, SyncLane); + return fiber; +} +function createFiberFromFragment(elements, mode, lanes, key) { + var fiber = createFiber(Fragment, elements, key, mode); + fiber.lanes = lanes; + return fiber; +} - if (root !== null) { - scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); - } +function createFiberFromProfiler(pendingProps, mode, lanes, key) { + { + if (typeof pendingProps.id !== "string") { + error( + 'Profiler must specify an "id" of type `string` as a prop. Received the type `%s` instead.', + typeof pendingProps.id + ); } - }; + } - overrideHookStateRenamePath = function (fiber, id, oldPath, newPath) { - var hook = findHook(fiber, id); + var fiber = createFiber(Profiler, pendingProps, key, mode | ProfileMode); + fiber.elementType = REACT_PROFILER_TYPE; + fiber.lanes = lanes; - if (hook !== null) { - var newState = copyWithRename(hook.memoizedState, oldPath, newPath); - hook.memoizedState = newState; - hook.baseState = newState; // We aren't actually adding an update to the queue, - // because there is no update we can add for useReducer hooks that won't trigger an error. - // (There's no appropriate action type for DevTools overrides.) - // As a result though, React will see the scheduled update as a noop and bailout. - // Shallow cloning props works as a workaround for now to bypass the bailout check. + { + fiber.stateNode = { + effectDuration: 0, + passiveEffectDuration: 0 + }; + } - fiber.memoizedProps = assign({}, fiber.memoizedProps); - var root = enqueueConcurrentRenderForLane(fiber, SyncLane); + return fiber; +} - if (root !== null) { - scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); - } +function createFiberFromSuspense(pendingProps, mode, lanes, key) { + var fiber = createFiber(SuspenseComponent, pendingProps, key, mode); + fiber.elementType = REACT_SUSPENSE_TYPE; + fiber.lanes = lanes; + return fiber; +} +function createFiberFromSuspenseList(pendingProps, mode, lanes, key) { + var fiber = createFiber(SuspenseListComponent, pendingProps, key, mode); + fiber.elementType = REACT_SUSPENSE_LIST_TYPE; + fiber.lanes = lanes; + return fiber; +} +function createFiberFromOffscreen(pendingProps, mode, lanes, key) { + var fiber = createFiber(OffscreenComponent, pendingProps, key, mode); + fiber.elementType = REACT_OFFSCREEN_TYPE; + fiber.lanes = lanes; + var primaryChildInstance = { + _visibility: OffscreenVisible, + _pendingVisibility: OffscreenVisible, + _pendingMarkers: null, + _retryCache: null, + _transitions: null, + _current: null, + detach: function () { + return detachOffscreenInstance(primaryChildInstance); + }, + attach: function () { + return attachOffscreenInstance(primaryChildInstance); } - }; // Support DevTools props for function components, forwardRef, memo, host components, etc. - - overrideProps = function (fiber, path, value) { - fiber.pendingProps = copyWithSet(fiber.memoizedProps, path, value); + }; + fiber.stateNode = primaryChildInstance; + return fiber; +} +function createFiberFromLegacyHidden(pendingProps, mode, lanes, key) { + var fiber = createFiber(LegacyHiddenComponent, pendingProps, key, mode); + fiber.elementType = REACT_LEGACY_HIDDEN_TYPE; + fiber.lanes = lanes; // Adding a stateNode for legacy hidden because it's currently using + // the offscreen implementation, which depends on a state node - if (fiber.alternate) { - fiber.alternate.pendingProps = fiber.pendingProps; + var instance = { + _visibility: OffscreenVisible, + _pendingVisibility: OffscreenVisible, + _pendingMarkers: null, + _transitions: null, + _retryCache: null, + _current: null, + detach: function () { + return detachOffscreenInstance(instance); + }, + attach: function () { + return attachOffscreenInstance(instance); } + }; + fiber.stateNode = instance; + return fiber; +} +function createFiberFromText(content, mode, lanes) { + var fiber = createFiber(HostText, content, null, mode); + fiber.lanes = lanes; + return fiber; +} +function createFiberFromPortal(portal, mode, lanes) { + var pendingProps = portal.children !== null ? portal.children : []; + var fiber = createFiber(HostPortal, pendingProps, portal.key, mode); + fiber.lanes = lanes; + fiber.stateNode = { + containerInfo: portal.containerInfo, + pendingChildren: null, + // Used by persistent updates + implementation: portal.implementation + }; + return fiber; +} // Used for stashing WIP properties to replay failed work in DEV. - var root = enqueueConcurrentRenderForLane(fiber, SyncLane); +function assignFiberPropertiesInDEV(target, source) { + if (target === null) { + // This Fiber's initial properties will always be overwritten. + // We only use a Fiber to ensure the same hidden class so DEV isn't slow. + target = createFiber(IndeterminateComponent, null, null, NoMode); + } // This is intentionally written as a list of all properties. + // We tried to use Object.assign() instead but this is called in + // the hottest path, and Object.assign() was too slow: + // https://github.com/facebook/react/issues/12502 + // This code is DEV-only so size is not a concern. - if (root !== null) { - scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); - } - }; + target.tag = source.tag; + target.key = source.key; + target.elementType = source.elementType; + target.type = source.type; + target.stateNode = source.stateNode; + target.return = source.return; + target.child = source.child; + target.sibling = source.sibling; + target.index = source.index; + target.ref = source.ref; + target.refCleanup = source.refCleanup; + target.pendingProps = source.pendingProps; + target.memoizedProps = source.memoizedProps; + target.updateQueue = source.updateQueue; + target.memoizedState = source.memoizedState; + target.dependencies = source.dependencies; + target.mode = source.mode; + target.flags = source.flags; + target.subtreeFlags = source.subtreeFlags; + target.deletions = source.deletions; + target.lanes = source.lanes; + target.childLanes = source.childLanes; + target.alternate = source.alternate; - overridePropsDeletePath = function (fiber, path) { - fiber.pendingProps = copyWithDelete(fiber.memoizedProps, path); + { + target.actualDuration = source.actualDuration; + target.actualStartTime = source.actualStartTime; + target.selfBaseDuration = source.selfBaseDuration; + target.treeBaseDuration = source.treeBaseDuration; + } - if (fiber.alternate) { - fiber.alternate.pendingProps = fiber.pendingProps; - } + target._debugSource = source._debugSource; + target._debugOwner = source._debugOwner; + target._debugNeedsRemount = source._debugNeedsRemount; + target._debugHookTypes = source._debugHookTypes; + return target; +} - var root = enqueueConcurrentRenderForLane(fiber, SyncLane); +function FiberRootNode( + containerInfo, // $FlowFixMe[missing-local-annot] + tag, + hydrate, + identifierPrefix, + onRecoverableError +) { + this.tag = tag; + this.containerInfo = containerInfo; + this.pendingChildren = null; + this.current = null; + this.pingCache = null; + this.finishedWork = null; + this.timeoutHandle = noTimeout; + this.cancelPendingCommit = null; + this.context = null; + this.pendingContext = null; + this.callbackNode = null; + this.callbackPriority = NoLane; + this.eventTimes = createLaneMap(NoLanes); + this.expirationTimes = createLaneMap(NoTimestamp); + this.pendingLanes = NoLanes; + this.suspendedLanes = NoLanes; + this.pingedLanes = NoLanes; + this.expiredLanes = NoLanes; + this.mutableReadLanes = NoLanes; + this.finishedLanes = NoLanes; + this.errorRecoveryDisabledLanes = NoLanes; + this.entangledLanes = NoLanes; + this.entanglements = createLaneMap(NoLanes); + this.hiddenUpdates = createLaneMap(null); + this.identifierPrefix = identifierPrefix; + this.onRecoverableError = onRecoverableError; - if (root !== null) { - scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); - } - }; + this.incompleteTransitions = new Map(); - overridePropsRenamePath = function (fiber, oldPath, newPath) { - fiber.pendingProps = copyWithRename(fiber.memoizedProps, oldPath, newPath); + { + this.effectDuration = 0; + this.passiveEffectDuration = 0; + } - if (fiber.alternate) { - fiber.alternate.pendingProps = fiber.pendingProps; + { + this.memoizedUpdaters = new Set(); + var pendingUpdatersLaneMap = (this.pendingUpdatersLaneMap = []); + + for (var _i = 0; _i < TotalLanes; _i++) { + pendingUpdatersLaneMap.push(new Set()); } + } - var root = enqueueConcurrentRenderForLane(fiber, SyncLane); + { + switch (tag) { + case ConcurrentRoot: + this._debugRootType = hydrate ? "hydrateRoot()" : "createRoot()"; + break; - if (root !== null) { - scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); + case LegacyRoot: + this._debugRootType = hydrate ? "hydrate()" : "render()"; + break; } - }; + } +} - scheduleUpdate = function (fiber) { - var root = enqueueConcurrentRenderForLane(fiber, SyncLane); +function createFiberRoot( + containerInfo, + tag, + hydrate, + initialChildren, + hydrationCallbacks, + isStrictMode, + concurrentUpdatesByDefaultOverride, // TODO: We have several of these arguments that are conceptually part of the + // host config, but because they are passed in at runtime, we have to thread + // them through the root constructor. Perhaps we should put them all into a + // single type, like a DynamicHostConfig that is defined by the renderer. + identifierPrefix, + onRecoverableError, + transitionCallbacks +) { + // $FlowFixMe[invalid-constructor] Flow no longer supports calling new on functions + var root = new FiberRootNode( + containerInfo, + tag, + hydrate, + identifierPrefix, + onRecoverableError + ); + // stateNode is any. - if (root !== null) { - scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); - } - }; + var uninitializedFiber = createHostRootFiber( + tag, + isStrictMode, + concurrentUpdatesByDefaultOverride + ); + root.current = uninitializedFiber; + uninitializedFiber.stateNode = root; - setErrorHandler = function (newShouldErrorImpl) { - shouldErrorImpl = newShouldErrorImpl; - }; + { + var _initialState = { + element: initialChildren, + isDehydrated: hydrate, + cache: null // not enabled yet + }; + uninitializedFiber.memoizedState = _initialState; + } - setSuspenseHandler = function (newShouldSuspendImpl) { - shouldSuspendImpl = newShouldSuspendImpl; - }; + initializeUpdateQueue(uninitializedFiber); + return root; } -function findHostInstanceByFiber(fiber) { - var hostFiber = findCurrentHostFiber(fiber); +var ReactVersion = "18.3.0-next-9c54b29b4-20230322"; - if (hostFiber === null) { - return null; +function createPortal$1( + children, + containerInfo, // TODO: figure out the API for cross-renderer implementation. + implementation +) { + var key = + arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null; + + { + checkKeyStringCoercion(key); } - return hostFiber.stateNode; + return { + // This tag allow us to uniquely identify this as a React Portal + $$typeof: REACT_PORTAL_TYPE, + key: key == null ? null : "" + key, + children: children, + containerInfo: containerInfo, + implementation: implementation + }; } -function emptyFindFiberByHostInstance(instance) { - return null; -} +// Might add PROFILE later. -function getCurrentFiberForDevTools() { - return current; -} +var didWarnAboutNestedUpdates; +var didWarnAboutFindNodeInStrictMode; -function injectIntoDevTools(devToolsConfig) { - var findFiberByHostInstance = devToolsConfig.findFiberByHostInstance; - var ReactCurrentDispatcher = ReactSharedInternals.ReactCurrentDispatcher; - return injectInternals({ - bundleType: devToolsConfig.bundleType, - version: devToolsConfig.version, - rendererPackageName: devToolsConfig.rendererPackageName, - rendererConfig: devToolsConfig.rendererConfig, - overrideHookState: overrideHookState, - overrideHookStateDeletePath: overrideHookStateDeletePath, - overrideHookStateRenamePath: overrideHookStateRenamePath, - overrideProps: overrideProps, - overridePropsDeletePath: overridePropsDeletePath, - overridePropsRenamePath: overridePropsRenamePath, - setErrorHandler: setErrorHandler, - setSuspenseHandler: setSuspenseHandler, - scheduleUpdate: scheduleUpdate, - currentDispatcherRef: ReactCurrentDispatcher, - findHostInstanceByFiber: findHostInstanceByFiber, - findFiberByHostInstance: - findFiberByHostInstance || emptyFindFiberByHostInstance, - // React Refresh - findHostInstancesForRefresh: findHostInstancesForRefresh, - scheduleRefresh: scheduleRefresh, - scheduleRoot: scheduleRoot, - setRefreshHandler: setRefreshHandler, - // Enables DevTools to append owner stacks to error messages in DEV mode. - getCurrentFiber: getCurrentFiberForDevTools, - // Enables DevTools to detect reconciler version rather than renderer version - // which may not match for third party renderers. - reconcilerVersion: ReactVersion - }); +{ + didWarnAboutNestedUpdates = false; + didWarnAboutFindNodeInStrictMode = {}; } -/** - * IMPORTANT: This module is used in Paper and Fabric. It needs to be defined - * outside of `ReactFabricPublicInstance` because that module requires - * `nativeFabricUIManager` to be defined in the global scope (which does not - * happen in Paper). - */ +function getContextForSubtree(parentComponent) { + if (!parentComponent) { + return emptyContextObject; + } -function getNativeTagFromPublicInstance(publicInstance) { - return publicInstance.__nativeTag; -} -function getNodeFromPublicInstance(publicInstance) { - if (publicInstance.__internalInstanceHandle == null) { - return null; + var fiber = get(parentComponent); + var parentContext = findCurrentUnmaskedContext(fiber); + + if (fiber.tag === ClassComponent) { + var Component = fiber.type; + + if (isContextProvider(Component)) { + return processChildContext(fiber, Component, parentContext); + } } - return getNodeFromInternalInstanceHandle( - publicInstance.__internalInstanceHandle - ); + return parentContext; } -var ReactCurrentOwner = ReactSharedInternals.ReactCurrentOwner; -function findHostInstance_DEPRECATED(componentOrHandle) { +function findHostInstanceWithWarning(component, methodName) { { - var owner = ReactCurrentOwner.current; + var fiber = get(component); - if (owner !== null && owner.stateNode !== null) { - if (!owner.stateNode._warnedAboutRefsInRender) { - error( - "%s is accessing findNodeHandle inside its render(). " + - "render() should be a pure function of props and state. It should " + - "never access something that requires stale data from the previous " + - "render, such as refs. Move this logic to componentDidMount and " + - "componentDidUpdate instead.", - getComponentNameFromType(owner.type) || "A component" + if (fiber === undefined) { + if (typeof component.render === "function") { + throw new Error("Unable to find node on an unmounted component."); + } else { + var keys = Object.keys(component).join(","); + throw new Error( + "Argument appears to not be a ReactComponent. Keys: " + keys ); } - - owner.stateNode._warnedAboutRefsInRender = true; } - } - - if (componentOrHandle == null) { - return null; - } // For compatibility with Fabric instances - if ( - componentOrHandle.canonical && - componentOrHandle.canonical.publicInstance - ) { - // $FlowExpectedError[incompatible-return] Can't refine componentOrHandle as a Fabric instance - return componentOrHandle.canonical.publicInstance; - } // For compatibility with legacy renderer instances + var hostFiber = findCurrentHostFiber(fiber); - if (componentOrHandle._nativeTag) { - // $FlowFixMe[incompatible-exact] Necessary when running Flow on Fabric - // $FlowFixMe[incompatible-return] - return componentOrHandle; - } + if (hostFiber === null) { + return null; + } - var hostInstance; + if (hostFiber.mode & StrictLegacyMode) { + var componentName = getComponentNameFromFiber(fiber) || "Component"; - { - hostInstance = findHostInstanceWithWarning( - componentOrHandle, - "findHostInstance_DEPRECATED" - ); - } // findHostInstance handles legacy vs. Fabric differences correctly - // $FlowFixMe[incompatible-exact] we need to fix the definition of `HostComponent` to use NativeMethods as an interface, not as a type. + if (!didWarnAboutFindNodeInStrictMode[componentName]) { + didWarnAboutFindNodeInStrictMode[componentName] = true; + var previousFiber = current; - return hostInstance; -} -function findNodeHandle(componentOrHandle) { - { - var owner = ReactCurrentOwner.current; + try { + setCurrentFiber(hostFiber); - if (owner !== null && owner.stateNode !== null) { - if (!owner.stateNode._warnedAboutRefsInRender) { - error( - "%s is accessing findNodeHandle inside its render(). " + - "render() should be a pure function of props and state. It should " + - "never access something that requires stale data from the previous " + - "render, such as refs. Move this logic to componentDidMount and " + - "componentDidUpdate instead.", - getComponentNameFromType(owner.type) || "A component" - ); + if (fiber.mode & StrictLegacyMode) { + error( + "%s is deprecated in StrictMode. " + + "%s was passed an instance of %s which is inside StrictMode. " + + "Instead, add a ref directly to the element you want to reference. " + + "Learn more about using refs safely here: " + + "https://reactjs.org/link/strict-mode-find-node", + methodName, + methodName, + componentName + ); + } else { + error( + "%s is deprecated in StrictMode. " + + "%s was passed an instance of %s which renders StrictMode children. " + + "Instead, add a ref directly to the element you want to reference. " + + "Learn more about using refs safely here: " + + "https://reactjs.org/link/strict-mode-find-node", + methodName, + methodName, + componentName + ); + } + } finally { + // Ideally this should reset to previous but this shouldn't be called in + // render and there's another warning for that anyway. + if (previousFiber) { + setCurrentFiber(previousFiber); + } else { + resetCurrentFiber(); + } + } } - - owner.stateNode._warnedAboutRefsInRender = true; } - } - if (componentOrHandle == null) { - return null; + return getPublicInstance(hostFiber.stateNode); } +} - if (typeof componentOrHandle === "number") { - // Already a node handle - return componentOrHandle; - } // For compatibility with legacy renderer instances - - if (componentOrHandle._nativeTag) { - return componentOrHandle._nativeTag; - } // For compatibility with Fabric instances - - if ( - componentOrHandle.canonical != null && - componentOrHandle.canonical.nativeTag != null - ) { - return componentOrHandle.canonical.nativeTag; - } // For compatibility with Fabric public instances - - var nativeTag = getNativeTagFromPublicInstance(componentOrHandle); - - if (nativeTag) { - return nativeTag; +function createContainer( + containerInfo, + tag, + hydrationCallbacks, + isStrictMode, + concurrentUpdatesByDefaultOverride, + identifierPrefix, + onRecoverableError, + transitionCallbacks +) { + var hydrate = false; + var initialChildren = null; + return createFiberRoot( + containerInfo, + tag, + hydrate, + initialChildren, + hydrationCallbacks, + isStrictMode, + concurrentUpdatesByDefaultOverride, + identifierPrefix, + onRecoverableError + ); +} +function updateContainer(element, container, parentComponent, callback) { + { + onScheduleRoot(container, element); } - var hostInstance; + var current$1 = container.current; + var lane = requestUpdateLane(current$1); { - hostInstance = findHostInstanceWithWarning( - componentOrHandle, - "findNodeHandle" - ); + markRenderScheduled(lane); } - if (hostInstance == null) { - return hostInstance; - } // $FlowFixMe[prop-missing] For compatibility with legacy renderer instances + var context = getContextForSubtree(parentComponent); - if (hostInstance._nativeTag != null) { - // $FlowFixMe[incompatible-return] - return hostInstance._nativeTag; - } // $FlowFixMe[incompatible-call] Necessary when running Flow on the legacy renderer + if (container.context === null) { + container.context = context; + } else { + container.pendingContext = context; + } - return getNativeTagFromPublicInstance(hostInstance); -} -function dispatchCommand(handle, command, args) { - var nativeTag = - handle._nativeTag != null - ? handle._nativeTag - : getNativeTagFromPublicInstance(handle); + { + if (isRendering && current !== null && !didWarnAboutNestedUpdates) { + didWarnAboutNestedUpdates = true; - if (nativeTag == null) { - { error( - "dispatchCommand was called with a ref that isn't a " + - "native component. Use React.forwardRef to get access to the underlying native component" + "Render methods should be a pure function of props and state; " + + "triggering nested component updates from render is not allowed. " + + "If necessary, trigger nested updates in componentDidUpdate.\n\n" + + "Check the render method of %s.", + getComponentNameFromFiber(current) || "Unknown" ); } - - return; } - var node = getNodeFromPublicInstance(handle); + var update = createUpdate(lane); // Caution: React DevTools currently depends on this property + // being called "element". - if (node != null) { - nativeFabricUIManager.dispatchCommand(node, command, args); - } else { - ReactNativePrivateInterface.UIManager.dispatchViewManagerCommand( - nativeTag, - command, - args - ); - } -} -function sendAccessibilityEvent(handle, eventType) { - var nativeTag = - handle._nativeTag != null - ? handle._nativeTag - : getNativeTagFromPublicInstance(handle); + update.payload = { + element: element + }; + callback = callback === undefined ? null : callback; - if (nativeTag == null) { + if (callback !== null) { { - error( - "sendAccessibilityEvent was called with a ref that isn't a " + - "native component. Use React.forwardRef to get access to the underlying native component" - ); + if (typeof callback !== "function") { + error( + "render(...): Expected the last optional `callback` argument to be a " + + "function. Instead received: %s.", + callback + ); + } } - return; + update.callback = callback; } - var node = getNodeFromPublicInstance(handle); + var root = enqueueUpdate(current$1, update, lane); - if (node != null) { - nativeFabricUIManager.sendAccessibilityEvent(node, eventType); - } else { - ReactNativePrivateInterface.legacySendAccessibilityEvent( - nativeTag, - eventType - ); + if (root !== null) { + var eventTime = requestEventTime(); + scheduleUpdateOnFiber(root, current$1, lane, eventTime); + entangleTransitions(root, current$1, lane); } -} -function getNodeFromInternalInstanceHandle(internalInstanceHandle) { - return ( - // $FlowExpectedError[incompatible-return] internalInstanceHandle is opaque but we need to make an exception here. - internalInstanceHandle && // $FlowExpectedError[incompatible-return] - internalInstanceHandle.stateNode && // $FlowExpectedError[incompatible-use] - internalInstanceHandle.stateNode.node - ); -} -var _nativeFabricUIManage$1 = nativeFabricUIManager, - fabricMeasure = _nativeFabricUIManage$1.measure, - fabricMeasureInWindow = _nativeFabricUIManage$1.measureInWindow, - fabricMeasureLayout = _nativeFabricUIManage$1.measureLayout, - _setNativeProps = _nativeFabricUIManage$1.setNativeProps, - fabricGetBoundingClientRect = _nativeFabricUIManage$1.getBoundingClientRect; - -var noop = function () {}; -/** - * This is used for refs on host components. - */ + return lane; +} +function getPublicRootInstance(container) { + var containerFiber = container.current; -var ReactFabricHostComponent = /*#__PURE__*/ (function () { - // These need to be accessible from `ReactFabricPublicInstanceUtils`. - function ReactFabricHostComponent(tag, viewConfig, internalInstanceHandle) { - this.__nativeTag = void 0; - this.__internalInstanceHandle = void 0; - this._viewConfig = void 0; - this.__nativeTag = tag; - this._viewConfig = viewConfig; - this.__internalInstanceHandle = internalInstanceHandle; + if (!containerFiber.child) { + return null; } - var _proto = ReactFabricHostComponent.prototype; + switch (containerFiber.child.tag) { + case HostSingleton: + case HostComponent: + return getPublicInstance(containerFiber.child.stateNode); - _proto.blur = function blur() { - ReactNativePrivateInterface.TextInputState.blurTextInput(this); - }; + default: + return containerFiber.child.stateNode; + } +} - _proto.focus = function focus() { - ReactNativePrivateInterface.TextInputState.focusTextInput(this); - }; +var shouldErrorImpl = function (fiber) { + return null; +}; - _proto.measure = function measure(callback) { - var node = getNodeFromInternalInstanceHandle(this.__internalInstanceHandle); +function shouldError(fiber) { + return shouldErrorImpl(fiber); +} - if (node != null) { - fabricMeasure(node, callback); - } - }; +var shouldSuspendImpl = function (fiber) { + return false; +}; - _proto.measureInWindow = function measureInWindow(callback) { - var node = getNodeFromInternalInstanceHandle(this.__internalInstanceHandle); +function shouldSuspend(fiber) { + return shouldSuspendImpl(fiber); +} +var overrideHookState = null; +var overrideHookStateDeletePath = null; +var overrideHookStateRenamePath = null; +var overrideProps = null; +var overridePropsDeletePath = null; +var overridePropsRenamePath = null; +var scheduleUpdate = null; +var setErrorHandler = null; +var setSuspenseHandler = null; - if (node != null) { - fabricMeasureInWindow(node, callback); - } - }; +{ + var copyWithDeleteImpl = function (obj, path, index) { + var key = path[index]; + var updated = isArray(obj) ? obj.slice() : assign({}, obj); - _proto.measureLayout = function measureLayout( - relativeToNativeNode, - onSuccess, - onFail - /* currently unused */ - ) { - if ( - typeof relativeToNativeNode === "number" || - !(relativeToNativeNode instanceof ReactFabricHostComponent) - ) { - { - error( - "Warning: ref.measureLayout must be called with a ref to a native component." - ); + if (index + 1 === path.length) { + if (isArray(updated)) { + updated.splice(key, 1); + } else { + delete updated[key]; } - return; - } - - var toStateNode = getNodeFromInternalInstanceHandle( - this.__internalInstanceHandle - ); - var fromStateNode = getNodeFromInternalInstanceHandle( - relativeToNativeNode.__internalInstanceHandle - ); + return updated; + } // $FlowFixMe number or string is fine here - if (toStateNode != null && fromStateNode != null) { - fabricMeasureLayout( - toStateNode, - fromStateNode, - onFail != null ? onFail : noop, - onSuccess != null ? onSuccess : noop - ); - } + updated[key] = copyWithDeleteImpl(obj[key], path, index + 1); + return updated; }; - _proto.unstable_getBoundingClientRect = - function unstable_getBoundingClientRect() { - var node = getNodeFromInternalInstanceHandle( - this.__internalInstanceHandle - ); + var copyWithDelete = function (obj, path) { + return copyWithDeleteImpl(obj, path, 0); + }; - if (node != null) { - var rect = fabricGetBoundingClientRect(node); + var copyWithRenameImpl = function (obj, oldPath, newPath, index) { + var oldKey = oldPath[index]; + var updated = isArray(obj) ? obj.slice() : assign({}, obj); - if (rect) { - return new DOMRect(rect[0], rect[1], rect[2], rect[3]); - } - } // Empty rect if any of the above failed + if (index + 1 === oldPath.length) { + var newKey = newPath[index]; // $FlowFixMe number or string is fine here - return new DOMRect(0, 0, 0, 0); - }; + updated[newKey] = updated[oldKey]; - _proto.setNativeProps = function setNativeProps(nativeProps) { - { - warnForStyleProps(nativeProps, this._viewConfig.validAttributes); + if (isArray(updated)) { + updated.splice(oldKey, 1); + } else { + delete updated[oldKey]; + } + } else { + // $FlowFixMe number or string is fine here + updated[oldKey] = copyWithRenameImpl( + // $FlowFixMe number or string is fine here + obj[oldKey], + oldPath, + newPath, + index + 1 + ); } - var updatePayload = create(nativeProps, this._viewConfig.validAttributes); - var node = getNodeFromInternalInstanceHandle(this.__internalInstanceHandle); - - if (node != null && updatePayload != null) { - _setNativeProps(node, updatePayload); - } + return updated; }; - return ReactFabricHostComponent; -})(); -function createPublicInstance(tag, viewConfig, internalInstanceHandle) { - return new ReactFabricHostComponent(tag, viewConfig, internalInstanceHandle); -} - -// Used as a way to call batchedUpdates when we don't have a reference to -// the renderer. Such as when we're dispatching events or if third party -// libraries need to call batchedUpdates. Eventually, this API will go away when -// everything is batched by default. We'll then have a similar API to opt-out of -// scheduled work and instead do synchronous work. -// Defaults -var batchedUpdatesImpl = function (fn, bookkeeping) { - return fn(bookkeeping); -}; - -var isInsideEventHandler = false; -function batchedUpdates(fn, bookkeeping) { - if (isInsideEventHandler) { - // If we are currently inside another batch, we need to wait until it - // fully completes before restoring state. - return fn(bookkeeping); - } + var copyWithRename = function (obj, oldPath, newPath) { + if (oldPath.length !== newPath.length) { + warn("copyWithRename() expects paths of the same length"); - isInsideEventHandler = true; + return; + } else { + for (var i = 0; i < newPath.length - 1; i++) { + if (oldPath[i] !== newPath[i]) { + warn( + "copyWithRename() expects paths to be the same except for the deepest key" + ); - try { - return batchedUpdatesImpl(fn, bookkeeping); - } finally { - isInsideEventHandler = false; - } -} -function setBatchingImplementation(_batchedUpdatesImpl, _discreteUpdatesImpl) { - batchedUpdatesImpl = _batchedUpdatesImpl; -} + return; + } + } + } -/** - * Internal queue of events that have accumulated their dispatches and are - * waiting to have their dispatches executed. - */ + return copyWithRenameImpl(obj, oldPath, newPath, 0); + }; -var eventQueue = null; -/** - * Dispatches an event and releases it back into the pool, unless persistent. - * - * @param {?object} event Synthetic event to be dispatched. - * @private - */ + var copyWithSetImpl = function (obj, path, index, value) { + if (index >= path.length) { + return value; + } -function executeDispatchesAndRelease(event) { - if (event) { - executeDispatchesInOrder(event); + var key = path[index]; + var updated = isArray(obj) ? obj.slice() : assign({}, obj); // $FlowFixMe number or string is fine here - if (!event.isPersistent()) { - event.constructor.release(event); - } - } -} // $FlowFixMe[missing-local-annot] + updated[key] = copyWithSetImpl(obj[key], path, index + 1, value); + return updated; + }; -function executeDispatchesAndReleaseTopLevel(e) { - return executeDispatchesAndRelease(e); -} + var copyWithSet = function (obj, path, value) { + return copyWithSetImpl(obj, path, 0, value); + }; -function runEventsInBatch(events) { - if (events !== null) { - eventQueue = accumulateInto(eventQueue, events); - } // Set `eventQueue` to null before processing it so that we can tell if more - // events get enqueued while processing. + var findHook = function (fiber, id) { + // For now, the "id" of stateful hooks is just the stateful hook index. + // This may change in the future with e.g. nested hooks. + var currentHook = fiber.memoizedState; - var processingEventQueue = eventQueue; - eventQueue = null; + while (currentHook !== null && id > 0) { + currentHook = currentHook.next; + id--; + } - if (!processingEventQueue) { - return; - } + return currentHook; + }; // Support DevTools editable values for useState and useReducer. - forEachAccumulated(processingEventQueue, executeDispatchesAndReleaseTopLevel); + overrideHookState = function (fiber, id, path, value) { + var hook = findHook(fiber, id); - if (eventQueue) { - throw new Error( - "processEventQueue(): Additional events were enqueued while processing " + - "an event queue. Support for this has not yet been implemented." - ); - } // This would be a good time to rethrow if any of the event handlers threw. + if (hook !== null) { + var newState = copyWithSet(hook.memoizedState, path, value); + hook.memoizedState = newState; + hook.baseState = newState; // We aren't actually adding an update to the queue, + // because there is no update we can add for useReducer hooks that won't trigger an error. + // (There's no appropriate action type for DevTools overrides.) + // As a result though, React will see the scheduled update as a noop and bailout. + // Shallow cloning props works as a workaround for now to bypass the bailout check. - rethrowCaughtError(); -} + fiber.memoizedProps = assign({}, fiber.memoizedProps); + var root = enqueueConcurrentRenderForLane(fiber, SyncLane); -/** - * Allows registered plugins an opportunity to extract events from top-level - * native browser events. - * - * @return {*} An accumulation of synthetic events. - * @internal - */ + if (root !== null) { + scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); + } + } + }; -function extractPluginEvents( - topLevelType, - targetInst, - nativeEvent, - nativeEventTarget -) { - var events = null; - var legacyPlugins = plugins; + overrideHookStateDeletePath = function (fiber, id, path) { + var hook = findHook(fiber, id); - for (var i = 0; i < legacyPlugins.length; i++) { - // Not every plugin in the ordering may be loaded at runtime. - var possiblePlugin = legacyPlugins[i]; + if (hook !== null) { + var newState = copyWithDelete(hook.memoizedState, path); + hook.memoizedState = newState; + hook.baseState = newState; // We aren't actually adding an update to the queue, + // because there is no update we can add for useReducer hooks that won't trigger an error. + // (There's no appropriate action type for DevTools overrides.) + // As a result though, React will see the scheduled update as a noop and bailout. + // Shallow cloning props works as a workaround for now to bypass the bailout check. - if (possiblePlugin) { - var extractedEvents = possiblePlugin.extractEvents( - topLevelType, - targetInst, - nativeEvent, - nativeEventTarget - ); + fiber.memoizedProps = assign({}, fiber.memoizedProps); + var root = enqueueConcurrentRenderForLane(fiber, SyncLane); - if (extractedEvents) { - events = accumulateInto(events, extractedEvents); + if (root !== null) { + scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); } } - } - - return events; -} + }; -function runExtractedPluginEventsInBatch( - topLevelType, - targetInst, - nativeEvent, - nativeEventTarget -) { - var events = extractPluginEvents( - topLevelType, - targetInst, - nativeEvent, - nativeEventTarget - ); - runEventsInBatch(events); -} + overrideHookStateRenamePath = function (fiber, id, oldPath, newPath) { + var hook = findHook(fiber, id); -function dispatchEvent(target, topLevelType, nativeEvent) { - var targetFiber = target; - var eventTarget = null; + if (hook !== null) { + var newState = copyWithRename(hook.memoizedState, oldPath, newPath); + hook.memoizedState = newState; + hook.baseState = newState; // We aren't actually adding an update to the queue, + // because there is no update we can add for useReducer hooks that won't trigger an error. + // (There's no appropriate action type for DevTools overrides.) + // As a result though, React will see the scheduled update as a noop and bailout. + // Shallow cloning props works as a workaround for now to bypass the bailout check. - if (targetFiber != null) { - var stateNode = targetFiber.stateNode; // Guard against Fiber being unmounted + fiber.memoizedProps = assign({}, fiber.memoizedProps); + var root = enqueueConcurrentRenderForLane(fiber, SyncLane); - if (stateNode != null) { - // $FlowExpectedError[incompatible-cast] public instances in Fabric do not implement `EventTarget` yet. - eventTarget = getPublicInstance(stateNode); + if (root !== null) { + scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); + } } - } + }; // Support DevTools props for function components, forwardRef, memo, host components, etc. - batchedUpdates(function () { - // Emit event to the RawEventEmitter. This is an unused-by-default EventEmitter - // that can be used to instrument event performance monitoring (primarily - could be useful - // for other things too). - // - // NOTE: this merely emits events into the EventEmitter below. - // If *you* do not add listeners to the `RawEventEmitter`, - // then all of these emitted events will just blackhole and are no-ops. - // It is available (although not officially supported... yet) if you want to collect - // perf data on event latency in your application, and could also be useful for debugging - // low-level events issues. - // - // If you do not have any event perf monitoring and are extremely concerned about event perf, - // it is safe to disable these "emit" statements; it will prevent checking the size of - // an empty array twice and prevent two no-ops. Practically the overhead is so low that - // we don't think it's worth thinking about in prod; your perf issues probably lie elsewhere. - // - // We emit two events here: one for listeners to this specific event, - // and one for the catchall listener '*', for any listeners that want - // to be notified for all events. - // Note that extracted events are *not* emitted, - // only events that have a 1:1 mapping with a native event, at least for now. - var event = { - eventName: topLevelType, - nativeEvent: nativeEvent - }; // $FlowFixMe[class-object-subtyping] found when upgrading Flow + overrideProps = function (fiber, path, value) { + fiber.pendingProps = copyWithSet(fiber.memoizedProps, path, value); - ReactNativePrivateInterface.RawEventEmitter.emit(topLevelType, event); // $FlowFixMe[class-object-subtyping] found when upgrading Flow + if (fiber.alternate) { + fiber.alternate.pendingProps = fiber.pendingProps; + } - ReactNativePrivateInterface.RawEventEmitter.emit("*", event); // Heritage plugin event system + var root = enqueueConcurrentRenderForLane(fiber, SyncLane); - runExtractedPluginEventsInBatch( - topLevelType, - targetFiber, - nativeEvent, - eventTarget - ); - }); // React Native doesn't use ReactControlledComponent but if it did, here's - // where it would do it. -} + if (root !== null) { + scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); + } + }; -// Renderers that don't support mutation -// can re-export everything from this module. -function shim$1() { - throw new Error( - "The current renderer does not support mutation. " + - "This error is likely caused by a bug in React. " + - "Please file an issue." - ); -} // Mutation (when unsupported) -var commitMount = shim$1; + overridePropsDeletePath = function (fiber, path) { + fiber.pendingProps = copyWithDelete(fiber.memoizedProps, path); -// Renderers that don't support hydration -// can re-export everything from this module. -function shim() { - throw new Error( - "The current renderer does not support hydration. " + - "This error is likely caused by a bug in React. " + - "Please file an issue." - ); -} // Hydration (when unsupported) -var isSuspenseInstancePending = shim; -var isSuspenseInstanceFallback = shim; -var getSuspenseInstanceFallbackErrorDetails = shim; -var registerSuspenseInstanceRetry = shim; -var errorHydratingContainer = shim; + if (fiber.alternate) { + fiber.alternate.pendingProps = fiber.pendingProps; + } -var _nativeFabricUIManage = nativeFabricUIManager, - createNode = _nativeFabricUIManage.createNode, - cloneNode = _nativeFabricUIManage.cloneNode, - cloneNodeWithNewChildren = _nativeFabricUIManage.cloneNodeWithNewChildren, - cloneNodeWithNewChildrenAndProps = - _nativeFabricUIManage.cloneNodeWithNewChildrenAndProps, - cloneNodeWithNewProps = _nativeFabricUIManage.cloneNodeWithNewProps, - createChildNodeSet = _nativeFabricUIManage.createChildSet, - appendChildNode = _nativeFabricUIManage.appendChild, - appendChildNodeToSet = _nativeFabricUIManage.appendChildToSet, - completeRoot = _nativeFabricUIManage.completeRoot, - registerEventHandler = _nativeFabricUIManage.registerEventHandler, - FabricDefaultPriority = _nativeFabricUIManage.unstable_DefaultEventPriority, - FabricDiscretePriority = _nativeFabricUIManage.unstable_DiscreteEventPriority, - fabricGetCurrentEventPriority = - _nativeFabricUIManage.unstable_getCurrentEventPriority; -var getViewConfigForType = - ReactNativePrivateInterface.ReactNativeViewConfigRegistry.get; // Counter for uniquely identifying views. -// % 10 === 1 means it is a rootTag. -// % 2 === 0 means it is a Fabric tag. -// This means that they never overlap. + var root = enqueueConcurrentRenderForLane(fiber, SyncLane); -var nextReactTag = 2; // TODO: Remove this conditional once all changes have propagated. + if (root !== null) { + scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); + } + }; -if (registerEventHandler) { - /** - * Register the event emitter with the native bridge - */ - registerEventHandler(dispatchEvent); -} -function appendInitialChild(parentInstance, child) { - appendChildNode(parentInstance.node, child.node); -} -function createInstance( - type, - props, - rootContainerInstance, - hostContext, - internalInstanceHandle -) { - var tag = nextReactTag; - nextReactTag += 2; - var viewConfig = getViewConfigForType(type); + overridePropsRenamePath = function (fiber, oldPath, newPath) { + fiber.pendingProps = copyWithRename(fiber.memoizedProps, oldPath, newPath); - { - for (var key in viewConfig.validAttributes) { - if (props.hasOwnProperty(key)) { - ReactNativePrivateInterface.deepFreezeAndThrowOnMutationInDev( - props[key] - ); - } + if (fiber.alternate) { + fiber.alternate.pendingProps = fiber.pendingProps; } - } - var updatePayload = create(props, viewConfig.validAttributes); - var node = createNode( - tag, // reactTag - viewConfig.uiViewClassName, // viewName - rootContainerInstance, // rootTag - updatePayload, // props - internalInstanceHandle // internalInstanceHandle - ); - var component = createPublicInstance(tag, viewConfig, internalInstanceHandle); - return { - node: node, - canonical: { - nativeTag: tag, - viewConfig: viewConfig, - currentProps: props, - internalInstanceHandle: internalInstanceHandle, - publicInstance: component + var root = enqueueConcurrentRenderForLane(fiber, SyncLane); + + if (root !== null) { + scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); } }; -} -function createTextInstance( - text, - rootContainerInstance, - hostContext, - internalInstanceHandle -) { - { - if (!hostContext.isInAParentText) { - error("Text strings must be rendered within a component."); + + scheduleUpdate = function (fiber) { + var root = enqueueConcurrentRenderForLane(fiber, SyncLane); + + if (root !== null) { + scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); } - } + }; - var tag = nextReactTag; - nextReactTag += 2; - var node = createNode( - tag, // reactTag - "RCTRawText", // viewName - rootContainerInstance, // rootTag - { - text: text - }, // props - internalInstanceHandle // instance handle - ); - return { - node: node + setErrorHandler = function (newShouldErrorImpl) { + shouldErrorImpl = newShouldErrorImpl; }; -} -function getRootHostContext(rootContainerInstance) { - return { - isInAParentText: false + + setSuspenseHandler = function (newShouldSuspendImpl) { + shouldSuspendImpl = newShouldSuspendImpl; }; } -function getChildHostContext(parentHostContext, type) { - var prevIsInAParentText = parentHostContext.isInAParentText; - var isInAParentText = - type === "AndroidTextInput" || // Android - type === "RCTMultilineTextInputView" || // iOS - type === "RCTSinglelineTextInputView" || // iOS - type === "RCTText" || - type === "RCTVirtualText"; // TODO: If this is an offscreen host container, we should reuse the - // parent context. - if (prevIsInAParentText !== isInAParentText) { - return { - isInAParentText: isInAParentText - }; - } else { - return parentHostContext; - } -} -function getPublicInstance(instance) { - if (instance.canonical != null && instance.canonical.publicInstance != null) { - return instance.canonical.publicInstance; - } // For compatibility with the legacy renderer, in case it's used with Fabric - // in the same app. - // $FlowExpectedError[prop-missing] +function findHostInstanceByFiber(fiber) { + var hostFiber = findCurrentHostFiber(fiber); - if (instance._nativeTag != null) { - // $FlowExpectedError[incompatible-return] - return instance; + if (hostFiber === null) { + return null; } + return hostFiber.stateNode; +} + +function emptyFindFiberByHostInstance(instance) { return null; } -function getPublicInstanceFromInternalInstanceHandle(internalInstanceHandle) { - var instance = internalInstanceHandle.stateNode; - return getPublicInstance(instance); + +function getCurrentFiberForDevTools() { + return current; } -function prepareUpdate(instance, type, oldProps, newProps, hostContext) { - var viewConfig = instance.canonical.viewConfig; - var updatePayload = diff(oldProps, newProps, viewConfig.validAttributes); // TODO: If the event handlers have changed, we need to update the current props - // in the commit phase but there is no host config hook to do it yet. - // So instead we hack it by updating it in the render phase. - instance.canonical.currentProps = newProps; - return updatePayload; +function injectIntoDevTools(devToolsConfig) { + var findFiberByHostInstance = devToolsConfig.findFiberByHostInstance; + var ReactCurrentDispatcher = ReactSharedInternals.ReactCurrentDispatcher; + return injectInternals({ + bundleType: devToolsConfig.bundleType, + version: devToolsConfig.version, + rendererPackageName: devToolsConfig.rendererPackageName, + rendererConfig: devToolsConfig.rendererConfig, + overrideHookState: overrideHookState, + overrideHookStateDeletePath: overrideHookStateDeletePath, + overrideHookStateRenamePath: overrideHookStateRenamePath, + overrideProps: overrideProps, + overridePropsDeletePath: overridePropsDeletePath, + overridePropsRenamePath: overridePropsRenamePath, + setErrorHandler: setErrorHandler, + setSuspenseHandler: setSuspenseHandler, + scheduleUpdate: scheduleUpdate, + currentDispatcherRef: ReactCurrentDispatcher, + findHostInstanceByFiber: findHostInstanceByFiber, + findFiberByHostInstance: + findFiberByHostInstance || emptyFindFiberByHostInstance, + // React Refresh + findHostInstancesForRefresh: findHostInstancesForRefresh, + scheduleRefresh: scheduleRefresh, + scheduleRoot: scheduleRoot, + setRefreshHandler: setRefreshHandler, + // Enables DevTools to append owner stacks to error messages in DEV mode. + getCurrentFiber: getCurrentFiberForDevTools, + // Enables DevTools to detect reconciler version rather than renderer version + // which may not match for third party renderers. + reconcilerVersion: ReactVersion + }); } -function shouldSetTextContent(type, props) { - // TODO (bvaughn) Revisit this decision. - // Always returning false simplifies the createInstance() implementation, - // But creates an additional child Fiber for raw text children. - // No additional native views are created though. - // It's not clear to me which is better so I'm deferring for now. - // More context @ github.com/facebook/react/pull/8560#discussion_r92111303 - return false; + +var instanceCache = new Map(); + +function getInstanceFromTag(tag) { + return instanceCache.get(tag) || null; } -function getCurrentEventPriority() { - var currentEventPriority = fabricGetCurrentEventPriority - ? fabricGetCurrentEventPriority() - : null; - if (currentEventPriority != null) { - switch (currentEventPriority) { - case FabricDiscretePriority: - return DiscreteEventPriority; +var ReactCurrentOwner = ReactSharedInternals.ReactCurrentOwner; +function findHostInstance_DEPRECATED(componentOrHandle) { + { + var owner = ReactCurrentOwner.current; + + if (owner !== null && owner.stateNode !== null) { + if (!owner.stateNode._warnedAboutRefsInRender) { + error( + "%s is accessing findNodeHandle inside its render(). " + + "render() should be a pure function of props and state. It should " + + "never access something that requires stale data from the previous " + + "render, such as refs. Move this logic to componentDidMount and " + + "componentDidUpdate instead.", + getComponentNameFromType(owner.type) || "A component" + ); + } - case FabricDefaultPriority: - default: - return DefaultEventPriority; + owner.stateNode._warnedAboutRefsInRender = true; } } - return DefaultEventPriority; -} // The Fabric renderer is secondary to the existing React Native renderer. - -var isPrimaryRenderer = false; // The Fabric renderer shouldn't trigger missing act() warnings + if (componentOrHandle == null) { + return null; + } // For compatibility with Fabric instances -var warnsIfNotActing = false; -var scheduleTimeout = setTimeout; -var cancelTimeout = clearTimeout; -var noTimeout = -1; // ------------------- -function cloneInstance( - instance, - updatePayload, - type, - oldProps, - newProps, - internalInstanceHandle, - keepChildren, - recyclableInstance -) { - var node = instance.node; - var clone; + if ( + componentOrHandle.canonical && + componentOrHandle.canonical.publicInstance + ) { + // $FlowExpectedError[incompatible-return] Can't refine componentOrHandle as a Fabric instance + return componentOrHandle.canonical.publicInstance; + } // For compatibility with legacy renderer instances - if (keepChildren) { - if (updatePayload !== null) { - clone = cloneNodeWithNewProps(node, updatePayload); - } else { - clone = cloneNode(node); - } - } else { - if (updatePayload !== null) { - clone = cloneNodeWithNewChildrenAndProps(node, updatePayload); - } else { - clone = cloneNodeWithNewChildren(node); - } + if (componentOrHandle._nativeTag) { + // $FlowFixMe[incompatible-exact] Necessary when running Flow on Fabric + // $FlowFixMe[incompatible-return] + return componentOrHandle; } - return { - node: clone, - canonical: instance.canonical - }; + var hostInstance; + + { + hostInstance = findHostInstanceWithWarning( + componentOrHandle, + "findHostInstance_DEPRECATED" + ); + } // findHostInstance handles legacy vs. Fabric differences correctly + // $FlowFixMe[incompatible-exact] we need to fix the definition of `HostComponent` to use NativeMethods as an interface, not as a type. + // $FlowFixMe[incompatible-return] + + return hostInstance; } -function cloneHiddenInstance(instance, type, props, internalInstanceHandle) { - var viewConfig = instance.canonical.viewConfig; - var node = instance.node; - var updatePayload = create( - { - style: { - display: "none" +function findNodeHandle(componentOrHandle) { + { + var owner = ReactCurrentOwner.current; + + if (owner !== null && owner.stateNode !== null) { + if (!owner.stateNode._warnedAboutRefsInRender) { + error( + "%s is accessing findNodeHandle inside its render(). " + + "render() should be a pure function of props and state. It should " + + "never access something that requires stale data from the previous " + + "render, such as refs. Move this logic to componentDidMount and " + + "componentDidUpdate instead.", + getComponentNameFromType(owner.type) || "A component" + ); } - }, - viewConfig.validAttributes - ); - return { - node: cloneNodeWithNewProps(node, updatePayload), - canonical: instance.canonical - }; -} -function cloneHiddenTextInstance(instance, text, internalInstanceHandle) { - throw new Error("Not yet implemented."); -} -function createContainerChildSet(container) { - return createChildNodeSet(container); -} -function appendChildToContainerChildSet(childSet, child) { - appendChildNodeToSet(childSet, child.node); -} -function finalizeContainerChildren(container, newChildren) { - completeRoot(container, newChildren); -} -function replaceContainerChildren(container, newChildren) {} -function preloadInstance(type, props) { - return true; -} -function waitForCommitToBeReady() { - return null; -} -// This is ok in DOM because they types are interchangeable, but in React Native -// they aren't. + owner.stateNode._warnedAboutRefsInRender = true; + } + } -function getInstanceFromNode(node) { - var instance = node; // In React Native, node is never a text instance + if (componentOrHandle == null) { + return null; + } + + if (typeof componentOrHandle === "number") { + // Already a node handle + return componentOrHandle; + } // For compatibility with legacy renderer instances + + if (componentOrHandle._nativeTag) { + return componentOrHandle._nativeTag; + } // For compatibility with Fabric instances if ( - instance.canonical != null && - instance.canonical.internalInstanceHandle != null + componentOrHandle.canonical != null && + componentOrHandle.canonical.nativeTag != null ) { - return instance.canonical.internalInstanceHandle; - } // $FlowFixMe[incompatible-return] DevTools incorrectly passes a fiber in React Native. + return componentOrHandle.canonical.nativeTag; + } // For compatibility with Fabric public instances - return node; -} + var nativeTag = + ReactNativePrivateInterface.getNativeTagFromPublicInstance( + componentOrHandle + ); -function getNodeFromInstance(fiber) { - var publicInstance = getPublicInstance(fiber.stateNode); + if (nativeTag) { + return nativeTag; + } - if (publicInstance == null) { - throw new Error("Could not find host instance from fiber"); + var hostInstance; + + { + hostInstance = findHostInstanceWithWarning( + componentOrHandle, + "findNodeHandle" + ); } - return publicInstance; -} + if (hostInstance == null) { + return hostInstance; + } // $FlowFixMe[incompatible-type] For compatibility with legacy renderer instances -function getFiberCurrentPropsFromNode(instance) { - return instance.canonical.currentProps; + if (hostInstance._nativeTag != null) { + return hostInstance._nativeTag; + } // $FlowFixMe[incompatible-call] Necessary when running Flow on the legacy renderer + + return ReactNativePrivateInterface.getNativeTagFromPublicInstance( + hostInstance + ); } +function dispatchCommand(handle, command, args) { + var nativeTag = + handle._nativeTag != null + ? handle._nativeTag + : ReactNativePrivateInterface.getNativeTagFromPublicInstance(handle); -var ReactFabricGlobalResponderHandler = { - onChange: function (from, to, blockNativeResponder) { - if (from && from.stateNode) { - // equivalent to clearJSResponder - nativeFabricUIManager.setIsJSResponder( - from.stateNode.node, - false, - blockNativeResponder || false + if (nativeTag == null) { + { + error( + "dispatchCommand was called with a ref that isn't a " + + "native component. Use React.forwardRef to get access to the underlying native component" ); } - if (to && to.stateNode) { - // equivalent to setJSResponder - nativeFabricUIManager.setIsJSResponder( - to.stateNode.node, - true, - blockNativeResponder || false + return; + } + + var node = ReactNativePrivateInterface.getNodeFromPublicInstance(handle); + + if (node != null) { + nativeFabricUIManager.dispatchCommand(node, command, args); + } else { + ReactNativePrivateInterface.UIManager.dispatchViewManagerCommand( + nativeTag, + command, + args + ); + } +} +function sendAccessibilityEvent(handle, eventType) { + var nativeTag = + handle._nativeTag != null + ? handle._nativeTag + : ReactNativePrivateInterface.getNativeTagFromPublicInstance(handle); + + if (nativeTag == null) { + { + error( + "sendAccessibilityEvent was called with a ref that isn't a " + + "native component. Use React.forwardRef to get access to the underlying native component" ); } - } -}; -setComponentTree( - getFiberCurrentPropsFromNode, - getInstanceFromNode, - getNodeFromInstance -); -ResponderEventPlugin.injection.injectGlobalResponderHandler( - ReactFabricGlobalResponderHandler -); + return; + } -var instanceCache = new Map(); + var node = ReactNativePrivateInterface.getNodeFromPublicInstance(handle); -function getInstanceFromTag(tag) { - return instanceCache.get(tag) || null; + if (node != null) { + nativeFabricUIManager.sendAccessibilityEvent(node, eventType); + } else { + ReactNativePrivateInterface.legacySendAccessibilityEvent( + nativeTag, + eventType + ); + } +} +function getNodeFromInternalInstanceHandle(internalInstanceHandle) { + return ( + // $FlowExpectedError[incompatible-return] internalInstanceHandle is opaque but we need to make an exception here. + internalInstanceHandle && // $FlowExpectedError[incompatible-return] + internalInstanceHandle.stateNode && // $FlowExpectedError[incompatible-use] + internalInstanceHandle.stateNode.node + ); } var emptyObject = {}; @@ -27953,7 +27799,8 @@ function getInspectorDataForViewAtPoint( ) { { var closestInstance = null; - var fabricNode = getNodeFromPublicInstance(inspectedView); + var fabricNode = + ReactNativePrivateInterface.getNodeFromPublicInstance(inspectedView); if (fabricNode) { // For Fabric we can look up the instance handle directly and measure it. @@ -28093,7 +27940,7 @@ function createPortal(children, containerTag) { return createPortal$1(children, containerTag, null, key); } -setBatchingImplementation(batchedUpdates$1); +setBatchingImplementation(batchedUpdates); var roots = new Map(); injectIntoDevTools({ // $FlowExpectedError[incompatible-call] The type of `Instance` in `getClosestInstanceFromNode` does not match in Fabric and the legacy renderer, so it fails to typecheck here. diff --git a/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-prod.fb.js b/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-prod.fb.js index 1ba3ea558599a..9670256197d8f 100644 --- a/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-prod.fb.js +++ b/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-prod.fb.js @@ -1235,10 +1235,434 @@ function diffProperties(updatePayload, prevProps, nextProps, validAttributes) { ))))); return updatePayload; } -var ReactSharedInternals = +function batchedUpdatesImpl(fn, bookkeeping) { + return fn(bookkeeping); +} +var isInsideEventHandler = !1; +function batchedUpdates$1(fn, bookkeeping) { + if (isInsideEventHandler) return fn(bookkeeping); + isInsideEventHandler = !0; + try { + return batchedUpdatesImpl(fn, bookkeeping); + } finally { + isInsideEventHandler = !1; + } +} +var eventQueue = null; +function executeDispatchesAndReleaseTopLevel(e) { + if (e) { + var dispatchListeners = e._dispatchListeners, + dispatchInstances = e._dispatchInstances; + if (isArrayImpl(dispatchListeners)) + for ( + var i = 0; + i < dispatchListeners.length && !e.isPropagationStopped(); + i++ + ) + executeDispatch(e, dispatchListeners[i], dispatchInstances[i]); + else + dispatchListeners && + executeDispatch(e, dispatchListeners, dispatchInstances); + e._dispatchListeners = null; + e._dispatchInstances = null; + e.isPersistent() || e.constructor.release(e); + } +} +function dispatchEvent(target, topLevelType, nativeEvent) { + var eventTarget = null; + if (null != target) { + var stateNode = target.stateNode; + null != stateNode && (eventTarget = getPublicInstance(stateNode)); + } + batchedUpdates$1(function () { + var event = { eventName: topLevelType, nativeEvent: nativeEvent }; + ReactNativePrivateInterface.RawEventEmitter.emit(topLevelType, event); + ReactNativePrivateInterface.RawEventEmitter.emit("*", event); + event = eventTarget; + for ( + var events = null, legacyPlugins = plugins, i = 0; + i < legacyPlugins.length; + i++ + ) { + var possiblePlugin = legacyPlugins[i]; + possiblePlugin && + (possiblePlugin = possiblePlugin.extractEvents( + topLevelType, + target, + nativeEvent, + event + )) && + (events = accumulateInto(events, possiblePlugin)); + } + event = events; + null !== event && (eventQueue = accumulateInto(eventQueue, event)); + event = eventQueue; + eventQueue = null; + if (event) { + forEachAccumulated(event, executeDispatchesAndReleaseTopLevel); + if (eventQueue) + throw Error( + "processEventQueue(): Additional events were enqueued while processing an event queue. Support for this has not yet been implemented." + ); + if (hasRethrowError) + throw ( + ((event = rethrowError), + (hasRethrowError = !1), + (rethrowError = null), + event) + ); + } + }); +} +var enableUseRefAccessWarning = dynamicFlags.enableUseRefAccessWarning, + scheduleCallback$1 = Scheduler.unstable_scheduleCallback, + cancelCallback$1 = Scheduler.unstable_cancelCallback, + shouldYield = Scheduler.unstable_shouldYield, + requestPaint = Scheduler.unstable_requestPaint, + now = Scheduler.unstable_now, + ImmediatePriority = Scheduler.unstable_ImmediatePriority, + UserBlockingPriority = Scheduler.unstable_UserBlockingPriority, + NormalPriority = Scheduler.unstable_NormalPriority, + IdlePriority = Scheduler.unstable_IdlePriority, + ReactSharedInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED, - enableUseRefAccessWarning = dynamicFlags.enableUseRefAccessWarning, - REACT_ELEMENT_TYPE = Symbol.for("react.element"), + rendererID = null, + injectedHook = null; +function onCommitRoot(root) { + if (injectedHook && "function" === typeof injectedHook.onCommitFiberRoot) + try { + injectedHook.onCommitFiberRoot( + rendererID, + root, + void 0, + 128 === (root.current.flags & 128) + ); + } catch (err) {} +} +var clz32 = Math.clz32 ? Math.clz32 : clz32Fallback, + log = Math.log, + LN2 = Math.LN2; +function clz32Fallback(x) { + x >>>= 0; + return 0 === x ? 32 : (31 - ((log(x) / LN2) | 0)) | 0; +} +var nextTransitionLane = 128, + nextRetryLane = 8388608; +function getHighestPriorityLanes(lanes) { + switch (lanes & -lanes) { + case 1: + return 1; + case 2: + return 2; + case 4: + return 4; + case 8: + return 8; + case 16: + return 16; + case 32: + return 32; + case 64: + return 64; + case 128: + case 256: + case 512: + case 1024: + case 2048: + case 4096: + case 8192: + case 16384: + case 32768: + case 65536: + case 131072: + case 262144: + case 524288: + case 1048576: + case 2097152: + case 4194304: + return lanes & 8388480; + case 8388608: + case 16777216: + case 33554432: + case 67108864: + return lanes & 125829120; + case 134217728: + return 134217728; + case 268435456: + return 268435456; + case 536870912: + return 536870912; + case 1073741824: + return 1073741824; + default: + return lanes; + } +} +function getNextLanes(root, wipLanes) { + var pendingLanes = root.pendingLanes; + if (0 === pendingLanes) return 0; + var nextLanes = 0, + suspendedLanes = root.suspendedLanes, + pingedLanes = root.pingedLanes, + nonIdlePendingLanes = pendingLanes & 268435455; + if (0 !== nonIdlePendingLanes) { + var nonIdleUnblockedLanes = nonIdlePendingLanes & ~suspendedLanes; + 0 !== nonIdleUnblockedLanes + ? (nextLanes = getHighestPriorityLanes(nonIdleUnblockedLanes)) + : ((pingedLanes &= nonIdlePendingLanes), + 0 !== pingedLanes && + (nextLanes = getHighestPriorityLanes(pingedLanes))); + } else + (nonIdlePendingLanes = pendingLanes & ~suspendedLanes), + 0 !== nonIdlePendingLanes + ? (nextLanes = getHighestPriorityLanes(nonIdlePendingLanes)) + : 0 !== pingedLanes && + (nextLanes = getHighestPriorityLanes(pingedLanes)); + if (0 === nextLanes) return 0; + if ( + 0 !== wipLanes && + wipLanes !== nextLanes && + 0 === (wipLanes & suspendedLanes) && + ((suspendedLanes = nextLanes & -nextLanes), + (pingedLanes = wipLanes & -wipLanes), + suspendedLanes >= pingedLanes || + (32 === suspendedLanes && 0 !== (pingedLanes & 8388480))) + ) + return wipLanes; + 0 === (root.current.mode & 32) && + 0 !== (nextLanes & 8) && + (nextLanes |= pendingLanes & 32); + wipLanes = root.entangledLanes; + if (0 !== wipLanes) + for (root = root.entanglements, wipLanes &= nextLanes; 0 < wipLanes; ) + (pendingLanes = 31 - clz32(wipLanes)), + (suspendedLanes = 1 << pendingLanes), + (nextLanes |= root[pendingLanes]), + (wipLanes &= ~suspendedLanes); + return nextLanes; +} +function computeExpirationTime(lane, currentTime) { + switch (lane) { + case 1: + case 2: + case 4: + case 8: + return currentTime + 250; + case 16: + case 32: + case 64: + case 128: + case 256: + case 512: + case 1024: + case 2048: + case 4096: + case 8192: + case 16384: + case 32768: + case 65536: + case 131072: + case 262144: + case 524288: + case 1048576: + case 2097152: + case 4194304: + return currentTime + 5e3; + case 8388608: + case 16777216: + case 33554432: + case 67108864: + return -1; + case 134217728: + case 268435456: + case 536870912: + case 1073741824: + return -1; + default: + return -1; + } +} +function getLanesToRetrySynchronouslyOnError(root, originallyAttemptedLanes) { + if (root.errorRecoveryDisabledLanes & originallyAttemptedLanes) return 0; + root = root.pendingLanes & -1073741825; + return 0 !== root ? root : root & 1073741824 ? 1073741824 : 0; +} +function includesBlockingLane(root, lanes) { + return 0 !== (root.current.mode & 32) ? !1 : 0 !== (lanes & 60); +} +function claimNextTransitionLane() { + var lane = nextTransitionLane; + nextTransitionLane <<= 1; + 0 === (nextTransitionLane & 8388480) && (nextTransitionLane = 128); + return lane; +} +function claimNextRetryLane() { + var lane = nextRetryLane; + nextRetryLane <<= 1; + 0 === (nextRetryLane & 125829120) && (nextRetryLane = 8388608); + return lane; +} +function createLaneMap(initial) { + for (var laneMap = [], i = 0; 31 > i; i++) laneMap.push(initial); + return laneMap; +} +function markRootUpdated(root, updateLane, eventTime) { + root.pendingLanes |= updateLane; + 536870912 !== updateLane && + ((root.suspendedLanes = 0), (root.pingedLanes = 0)); + root = root.eventTimes; + updateLane = 31 - clz32(updateLane); + root[updateLane] = eventTime; +} +function markRootFinished(root, remainingLanes) { + var noLongerPendingLanes = root.pendingLanes & ~remainingLanes; + root.pendingLanes = remainingLanes; + root.suspendedLanes = 0; + root.pingedLanes = 0; + root.expiredLanes &= remainingLanes; + root.mutableReadLanes &= remainingLanes; + root.entangledLanes &= remainingLanes; + root.errorRecoveryDisabledLanes &= remainingLanes; + remainingLanes = root.entanglements; + var eventTimes = root.eventTimes, + expirationTimes = root.expirationTimes; + for (root = root.hiddenUpdates; 0 < noLongerPendingLanes; ) { + var index$6 = 31 - clz32(noLongerPendingLanes), + lane = 1 << index$6; + remainingLanes[index$6] = 0; + eventTimes[index$6] = -1; + expirationTimes[index$6] = -1; + var hiddenUpdatesForLane = root[index$6]; + if (null !== hiddenUpdatesForLane) + for ( + root[index$6] = null, index$6 = 0; + index$6 < hiddenUpdatesForLane.length; + index$6++ + ) { + var update = hiddenUpdatesForLane[index$6]; + null !== update && (update.lane &= -1073741825); + } + noLongerPendingLanes &= ~lane; + } +} +function markRootEntangled(root, entangledLanes) { + var rootEntangledLanes = (root.entangledLanes |= entangledLanes); + for (root = root.entanglements; rootEntangledLanes; ) { + var index$7 = 31 - clz32(rootEntangledLanes), + lane = 1 << index$7; + (lane & entangledLanes) | (root[index$7] & entangledLanes) && + (root[index$7] |= entangledLanes); + rootEntangledLanes &= ~lane; + } +} +var currentUpdatePriority = 0; +function lanesToEventPriority(lanes) { + lanes &= -lanes; + return 2 < lanes + ? 8 < lanes + ? 0 !== (lanes & 268435455) + ? 32 + : 536870912 + : 8 + : 2; +} +function shim() { + throw Error( + "The current renderer does not support hydration. This error is likely caused by a bug in React. Please file an issue." + ); +} +var _nativeFabricUIManage = nativeFabricUIManager, + createNode = _nativeFabricUIManage.createNode, + cloneNode = _nativeFabricUIManage.cloneNode, + cloneNodeWithNewChildren = _nativeFabricUIManage.cloneNodeWithNewChildren, + cloneNodeWithNewChildrenAndProps = + _nativeFabricUIManage.cloneNodeWithNewChildrenAndProps, + cloneNodeWithNewProps = _nativeFabricUIManage.cloneNodeWithNewProps, + createChildNodeSet = _nativeFabricUIManage.createChildSet, + appendChildNode = _nativeFabricUIManage.appendChild, + appendChildNodeToSet = _nativeFabricUIManage.appendChildToSet, + completeRoot = _nativeFabricUIManage.completeRoot, + registerEventHandler = _nativeFabricUIManage.registerEventHandler, + FabricDiscretePriority = _nativeFabricUIManage.unstable_DiscreteEventPriority, + fabricGetCurrentEventPriority = + _nativeFabricUIManage.unstable_getCurrentEventPriority, + getViewConfigForType = + ReactNativePrivateInterface.ReactNativeViewConfigRegistry.get, + nextReactTag = 2; +registerEventHandler && registerEventHandler(dispatchEvent); +function createTextInstance( + text, + rootContainerInstance, + hostContext, + internalInstanceHandle +) { + hostContext = nextReactTag; + nextReactTag += 2; + return { + node: createNode( + hostContext, + "RCTRawText", + rootContainerInstance, + { text: text }, + internalInstanceHandle + ) + }; +} +function getPublicInstance(instance) { + return null != instance.canonical && null != instance.canonical.publicInstance + ? instance.canonical.publicInstance + : null != instance._nativeTag + ? instance + : null; +} +var scheduleTimeout = setTimeout, + cancelTimeout = clearTimeout; +function cloneHiddenInstance(instance) { + var node = instance.node; + var JSCompiler_inline_result = diffProperties( + null, + emptyObject$1, + { style: { display: "none" } }, + instance.canonical.viewConfig.validAttributes + ); + return { + node: cloneNodeWithNewProps(node, JSCompiler_inline_result), + canonical: instance.canonical + }; +} +function getInstanceFromNode(node) { + return null != node.canonical && null != node.canonical.internalInstanceHandle + ? node.canonical.internalInstanceHandle + : node; +} +getFiberCurrentPropsFromNode$1 = function (instance) { + return instance.canonical.currentProps; +}; +getInstanceFromNode$1 = getInstanceFromNode; +getNodeFromInstance$1 = function (fiber) { + fiber = getPublicInstance(fiber.stateNode); + if (null == fiber) throw Error("Could not find host instance from fiber"); + return fiber; +}; +ResponderEventPlugin.injection.injectGlobalResponderHandler({ + onChange: function (from, to, blockNativeResponder) { + from && + from.stateNode && + nativeFabricUIManager.setIsJSResponder( + from.stateNode.node, + !1, + blockNativeResponder || !1 + ); + to && + to.stateNode && + nativeFabricUIManager.setIsJSResponder( + to.stateNode.node, + !0, + blockNativeResponder || !1 + ); + } +}); +var REACT_ELEMENT_TYPE = Symbol.for("react.element"), REACT_PORTAL_TYPE = Symbol.for("react.portal"), REACT_FRAGMENT_TYPE = Symbol.for("react.fragment"), REACT_STRICT_MODE_TYPE = Symbol.for("react.strict_mode"), @@ -1429,422 +1853,173 @@ function findCurrentFiberUsingSlowPath(fiber) { } if (a.return !== b.return) (a = parentA), (b = parentB); else { - for (var didFindChild = !1, child$2 = parentA.child; child$2; ) { - if (child$2 === a) { + for (var didFindChild = !1, child$8 = parentA.child; child$8; ) { + if (child$8 === a) { didFindChild = !0; a = parentA; b = parentB; - break; - } - if (child$2 === b) { - didFindChild = !0; - b = parentA; - a = parentB; - break; - } - child$2 = child$2.sibling; - } - if (!didFindChild) { - for (child$2 = parentB.child; child$2; ) { - if (child$2 === a) { - didFindChild = !0; - a = parentB; - b = parentA; - break; - } - if (child$2 === b) { - didFindChild = !0; - b = parentB; - a = parentA; - break; - } - child$2 = child$2.sibling; - } - if (!didFindChild) - throw Error( - "Child was not found in either parent set. This indicates a bug in React related to the return pointer. Please file an issue." - ); - } - } - if (a.alternate !== b) - throw Error( - "Return fibers should always be each others' alternates. This error is likely caused by a bug in React. Please file an issue." - ); - } - if (3 !== a.tag) - throw Error("Unable to find node on an unmounted component."); - return a.stateNode.current === a ? fiber : alternate; -} -function findCurrentHostFiber(parent) { - parent = findCurrentFiberUsingSlowPath(parent); - return null !== parent ? findCurrentHostFiberImpl(parent) : null; -} -function findCurrentHostFiberImpl(node) { - var tag = node.tag; - if (5 === tag || 26 === tag || 27 === tag || 6 === tag) return node; - for (node = node.child; null !== node; ) { - tag = findCurrentHostFiberImpl(node); - if (null !== tag) return tag; - node = node.sibling; - } - return null; -} -function describeComponentFrame(name, source, ownerName) { - source = ""; - ownerName && (source = " (created by " + ownerName + ")"); - return "\n in " + (name || "Unknown") + source; -} -function describeFunctionComponentFrame(fn, source) { - return fn - ? describeComponentFrame(fn.displayName || fn.name || null, source, null) - : ""; -} -var hasOwnProperty = Object.prototype.hasOwnProperty, - valueStack = [], - index = -1; -function createCursor(defaultValue) { - return { current: defaultValue }; -} -function pop(cursor) { - 0 > index || - ((cursor.current = valueStack[index]), (valueStack[index] = null), index--); -} -function push(cursor, value) { - index++; - valueStack[index] = cursor.current; - cursor.current = value; -} -var emptyContextObject = {}, - contextStackCursor$1 = createCursor(emptyContextObject), - didPerformWorkStackCursor = createCursor(!1), - previousContext = emptyContextObject; -function getMaskedContext(workInProgress, unmaskedContext) { - var contextTypes = workInProgress.type.contextTypes; - if (!contextTypes) return emptyContextObject; - var instance = workInProgress.stateNode; - if ( - instance && - instance.__reactInternalMemoizedUnmaskedChildContext === unmaskedContext - ) - return instance.__reactInternalMemoizedMaskedChildContext; - var context = {}, - key; - for (key in contextTypes) context[key] = unmaskedContext[key]; - instance && - ((workInProgress = workInProgress.stateNode), - (workInProgress.__reactInternalMemoizedUnmaskedChildContext = - unmaskedContext), - (workInProgress.__reactInternalMemoizedMaskedChildContext = context)); - return context; -} -function isContextProvider(type) { - type = type.childContextTypes; - return null !== type && void 0 !== type; -} -function popContext() { - pop(didPerformWorkStackCursor); - pop(contextStackCursor$1); -} -function pushTopLevelContextObject(fiber, context, didChange) { - if (contextStackCursor$1.current !== emptyContextObject) - throw Error( - "Unexpected context found on stack. This error is likely caused by a bug in React. Please file an issue." - ); - push(contextStackCursor$1, context); - push(didPerformWorkStackCursor, didChange); -} -function processChildContext(fiber, type, parentContext) { - var instance = fiber.stateNode; - type = type.childContextTypes; - if ("function" !== typeof instance.getChildContext) return parentContext; - instance = instance.getChildContext(); - for (var contextKey in instance) - if (!(contextKey in type)) - throw Error( - (getComponentNameFromFiber(fiber) || "Unknown") + - '.getChildContext(): key "' + - contextKey + - '" is not defined in childContextTypes.' - ); - return assign({}, parentContext, instance); -} -function pushContextProvider(workInProgress) { - workInProgress = - ((workInProgress = workInProgress.stateNode) && - workInProgress.__reactInternalMemoizedMergedChildContext) || - emptyContextObject; - previousContext = contextStackCursor$1.current; - push(contextStackCursor$1, workInProgress); - push(didPerformWorkStackCursor, didPerformWorkStackCursor.current); - return !0; -} -function invalidateContextProvider(workInProgress, type, didChange) { - var instance = workInProgress.stateNode; - if (!instance) - throw Error( - "Expected to have an instance by this point. This error is likely caused by a bug in React. Please file an issue." - ); - didChange - ? ((workInProgress = processChildContext( - workInProgress, - type, - previousContext - )), - (instance.__reactInternalMemoizedMergedChildContext = workInProgress), - pop(didPerformWorkStackCursor), - pop(contextStackCursor$1), - push(contextStackCursor$1, workInProgress)) - : pop(didPerformWorkStackCursor); - push(didPerformWorkStackCursor, didChange); -} -var clz32 = Math.clz32 ? Math.clz32 : clz32Fallback, - log = Math.log, - LN2 = Math.LN2; -function clz32Fallback(x) { - x >>>= 0; - return 0 === x ? 32 : (31 - ((log(x) / LN2) | 0)) | 0; -} -var nextTransitionLane = 128, - nextRetryLane = 8388608; -function getHighestPriorityLanes(lanes) { - switch (lanes & -lanes) { - case 1: - return 1; - case 2: - return 2; - case 4: - return 4; - case 8: - return 8; - case 16: - return 16; - case 32: - return 32; - case 64: - return 64; - case 128: - case 256: - case 512: - case 1024: - case 2048: - case 4096: - case 8192: - case 16384: - case 32768: - case 65536: - case 131072: - case 262144: - case 524288: - case 1048576: - case 2097152: - case 4194304: - return lanes & 8388480; - case 8388608: - case 16777216: - case 33554432: - case 67108864: - return lanes & 125829120; - case 134217728: - return 134217728; - case 268435456: - return 268435456; - case 536870912: - return 536870912; - case 1073741824: - return 1073741824; - default: - return lanes; + break; + } + if (child$8 === b) { + didFindChild = !0; + b = parentA; + a = parentB; + break; + } + child$8 = child$8.sibling; + } + if (!didFindChild) { + for (child$8 = parentB.child; child$8; ) { + if (child$8 === a) { + didFindChild = !0; + a = parentB; + b = parentA; + break; + } + if (child$8 === b) { + didFindChild = !0; + b = parentB; + a = parentA; + break; + } + child$8 = child$8.sibling; + } + if (!didFindChild) + throw Error( + "Child was not found in either parent set. This indicates a bug in React related to the return pointer. Please file an issue." + ); + } + } + if (a.alternate !== b) + throw Error( + "Return fibers should always be each others' alternates. This error is likely caused by a bug in React. Please file an issue." + ); } + if (3 !== a.tag) + throw Error("Unable to find node on an unmounted component."); + return a.stateNode.current === a ? fiber : alternate; } -function getNextLanes(root, wipLanes) { - var pendingLanes = root.pendingLanes; - if (0 === pendingLanes) return 0; - var nextLanes = 0, - suspendedLanes = root.suspendedLanes, - pingedLanes = root.pingedLanes, - nonIdlePendingLanes = pendingLanes & 268435455; - if (0 !== nonIdlePendingLanes) { - var nonIdleUnblockedLanes = nonIdlePendingLanes & ~suspendedLanes; - 0 !== nonIdleUnblockedLanes - ? (nextLanes = getHighestPriorityLanes(nonIdleUnblockedLanes)) - : ((pingedLanes &= nonIdlePendingLanes), - 0 !== pingedLanes && - (nextLanes = getHighestPriorityLanes(pingedLanes))); - } else - (nonIdlePendingLanes = pendingLanes & ~suspendedLanes), - 0 !== nonIdlePendingLanes - ? (nextLanes = getHighestPriorityLanes(nonIdlePendingLanes)) - : 0 !== pingedLanes && - (nextLanes = getHighestPriorityLanes(pingedLanes)); - if (0 === nextLanes) return 0; - if ( - 0 !== wipLanes && - wipLanes !== nextLanes && - 0 === (wipLanes & suspendedLanes) && - ((suspendedLanes = nextLanes & -nextLanes), - (pingedLanes = wipLanes & -wipLanes), - suspendedLanes >= pingedLanes || - (32 === suspendedLanes && 0 !== (pingedLanes & 8388480))) - ) - return wipLanes; - 0 === (root.current.mode & 32) && - 0 !== (nextLanes & 8) && - (nextLanes |= pendingLanes & 32); - wipLanes = root.entangledLanes; - if (0 !== wipLanes) - for (root = root.entanglements, wipLanes &= nextLanes; 0 < wipLanes; ) - (pendingLanes = 31 - clz32(wipLanes)), - (suspendedLanes = 1 << pendingLanes), - (nextLanes |= root[pendingLanes]), - (wipLanes &= ~suspendedLanes); - return nextLanes; +function findCurrentHostFiber(parent) { + parent = findCurrentFiberUsingSlowPath(parent); + return null !== parent ? findCurrentHostFiberImpl(parent) : null; } -function computeExpirationTime(lane, currentTime) { - switch (lane) { - case 1: - case 2: - case 4: - case 8: - return currentTime + 250; - case 16: - case 32: - case 64: - case 128: - case 256: - case 512: - case 1024: - case 2048: - case 4096: - case 8192: - case 16384: - case 32768: - case 65536: - case 131072: - case 262144: - case 524288: - case 1048576: - case 2097152: - case 4194304: - return currentTime + 5e3; - case 8388608: - case 16777216: - case 33554432: - case 67108864: - return -1; - case 134217728: - case 268435456: - case 536870912: - case 1073741824: - return -1; - default: - return -1; +function findCurrentHostFiberImpl(node) { + var tag = node.tag; + if (5 === tag || 26 === tag || 27 === tag || 6 === tag) return node; + for (node = node.child; null !== node; ) { + tag = findCurrentHostFiberImpl(node); + if (null !== tag) return tag; + node = node.sibling; } + return null; } -function getLanesToRetrySynchronouslyOnError(root, originallyAttemptedLanes) { - if (root.errorRecoveryDisabledLanes & originallyAttemptedLanes) return 0; - root = root.pendingLanes & -1073741825; - return 0 !== root ? root : root & 1073741824 ? 1073741824 : 0; -} -function includesBlockingLane(root, lanes) { - return 0 !== (root.current.mode & 32) ? !1 : 0 !== (lanes & 60); +function describeComponentFrame(name, source, ownerName) { + source = ""; + ownerName && (source = " (created by " + ownerName + ")"); + return "\n in " + (name || "Unknown") + source; } -function claimNextTransitionLane() { - var lane = nextTransitionLane; - nextTransitionLane <<= 1; - 0 === (nextTransitionLane & 8388480) && (nextTransitionLane = 128); - return lane; +function describeFunctionComponentFrame(fn, source) { + return fn + ? describeComponentFrame(fn.displayName || fn.name || null, source, null) + : ""; } -function claimNextRetryLane() { - var lane = nextRetryLane; - nextRetryLane <<= 1; - 0 === (nextRetryLane & 125829120) && (nextRetryLane = 8388608); - return lane; +var hasOwnProperty = Object.prototype.hasOwnProperty, + valueStack = [], + index = -1; +function createCursor(defaultValue) { + return { current: defaultValue }; } -function createLaneMap(initial) { - for (var laneMap = [], i = 0; 31 > i; i++) laneMap.push(initial); - return laneMap; +function pop(cursor) { + 0 > index || + ((cursor.current = valueStack[index]), (valueStack[index] = null), index--); } -function markRootUpdated(root, updateLane, eventTime) { - root.pendingLanes |= updateLane; - 536870912 !== updateLane && - ((root.suspendedLanes = 0), (root.pingedLanes = 0)); - root = root.eventTimes; - updateLane = 31 - clz32(updateLane); - root[updateLane] = eventTime; +function push(cursor, value) { + index++; + valueStack[index] = cursor.current; + cursor.current = value; } -function markRootFinished(root, remainingLanes) { - var noLongerPendingLanes = root.pendingLanes & ~remainingLanes; - root.pendingLanes = remainingLanes; - root.suspendedLanes = 0; - root.pingedLanes = 0; - root.expiredLanes &= remainingLanes; - root.mutableReadLanes &= remainingLanes; - root.entangledLanes &= remainingLanes; - root.errorRecoveryDisabledLanes &= remainingLanes; - remainingLanes = root.entanglements; - var eventTimes = root.eventTimes, - expirationTimes = root.expirationTimes; - for (root = root.hiddenUpdates; 0 < noLongerPendingLanes; ) { - var index$7 = 31 - clz32(noLongerPendingLanes), - lane = 1 << index$7; - remainingLanes[index$7] = 0; - eventTimes[index$7] = -1; - expirationTimes[index$7] = -1; - var hiddenUpdatesForLane = root[index$7]; - if (null !== hiddenUpdatesForLane) - for ( - root[index$7] = null, index$7 = 0; - index$7 < hiddenUpdatesForLane.length; - index$7++ - ) { - var update = hiddenUpdatesForLane[index$7]; - null !== update && (update.lane &= -1073741825); - } - noLongerPendingLanes &= ~lane; - } +var emptyContextObject = {}, + contextStackCursor$1 = createCursor(emptyContextObject), + didPerformWorkStackCursor = createCursor(!1), + previousContext = emptyContextObject; +function getMaskedContext(workInProgress, unmaskedContext) { + var contextTypes = workInProgress.type.contextTypes; + if (!contextTypes) return emptyContextObject; + var instance = workInProgress.stateNode; + if ( + instance && + instance.__reactInternalMemoizedUnmaskedChildContext === unmaskedContext + ) + return instance.__reactInternalMemoizedMaskedChildContext; + var context = {}, + key; + for (key in contextTypes) context[key] = unmaskedContext[key]; + instance && + ((workInProgress = workInProgress.stateNode), + (workInProgress.__reactInternalMemoizedUnmaskedChildContext = + unmaskedContext), + (workInProgress.__reactInternalMemoizedMaskedChildContext = context)); + return context; } -function markRootEntangled(root, entangledLanes) { - var rootEntangledLanes = (root.entangledLanes |= entangledLanes); - for (root = root.entanglements; rootEntangledLanes; ) { - var index$8 = 31 - clz32(rootEntangledLanes), - lane = 1 << index$8; - (lane & entangledLanes) | (root[index$8] & entangledLanes) && - (root[index$8] |= entangledLanes); - rootEntangledLanes &= ~lane; - } +function isContextProvider(type) { + type = type.childContextTypes; + return null !== type && void 0 !== type; } -var currentUpdatePriority = 0; -function lanesToEventPriority(lanes) { - lanes &= -lanes; - return 2 < lanes - ? 8 < lanes - ? 0 !== (lanes & 268435455) - ? 32 - : 536870912 - : 8 - : 2; +function popContext() { + pop(didPerformWorkStackCursor); + pop(contextStackCursor$1); } -var scheduleCallback$1 = Scheduler.unstable_scheduleCallback, - cancelCallback$1 = Scheduler.unstable_cancelCallback, - shouldYield = Scheduler.unstable_shouldYield, - requestPaint = Scheduler.unstable_requestPaint, - now = Scheduler.unstable_now, - ImmediatePriority = Scheduler.unstable_ImmediatePriority, - UserBlockingPriority = Scheduler.unstable_UserBlockingPriority, - NormalPriority = Scheduler.unstable_NormalPriority, - IdlePriority = Scheduler.unstable_IdlePriority, - rendererID = null, - injectedHook = null; -function onCommitRoot(root) { - if (injectedHook && "function" === typeof injectedHook.onCommitFiberRoot) - try { - injectedHook.onCommitFiberRoot( - rendererID, - root, - void 0, - 128 === (root.current.flags & 128) +function pushTopLevelContextObject(fiber, context, didChange) { + if (contextStackCursor$1.current !== emptyContextObject) + throw Error( + "Unexpected context found on stack. This error is likely caused by a bug in React. Please file an issue." + ); + push(contextStackCursor$1, context); + push(didPerformWorkStackCursor, didChange); +} +function processChildContext(fiber, type, parentContext) { + var instance = fiber.stateNode; + type = type.childContextTypes; + if ("function" !== typeof instance.getChildContext) return parentContext; + instance = instance.getChildContext(); + for (var contextKey in instance) + if (!(contextKey in type)) + throw Error( + (getComponentNameFromFiber(fiber) || "Unknown") + + '.getChildContext(): key "' + + contextKey + + '" is not defined in childContextTypes.' ); - } catch (err) {} + return assign({}, parentContext, instance); +} +function pushContextProvider(workInProgress) { + workInProgress = + ((workInProgress = workInProgress.stateNode) && + workInProgress.__reactInternalMemoizedMergedChildContext) || + emptyContextObject; + previousContext = contextStackCursor$1.current; + push(contextStackCursor$1, workInProgress); + push(didPerformWorkStackCursor, didPerformWorkStackCursor.current); + return !0; +} +function invalidateContextProvider(workInProgress, type, didChange) { + var instance = workInProgress.stateNode; + if (!instance) + throw Error( + "Expected to have an instance by this point. This error is likely caused by a bug in React. Please file an issue." + ); + didChange + ? ((workInProgress = processChildContext( + workInProgress, + type, + previousContext + )), + (instance.__reactInternalMemoizedMergedChildContext = workInProgress), + pop(didPerformWorkStackCursor), + pop(contextStackCursor$1), + push(contextStackCursor$1, workInProgress)) + : pop(didPerformWorkStackCursor); + push(didPerformWorkStackCursor, didChange); } function is(x, y) { return (x === y && (0 !== x || 1 / x === 1 / y)) || (x !== x && y !== y); @@ -2303,12 +2478,12 @@ function isThenableResolved(thenable) { thenable = thenable.status; return "fulfilled" === thenable || "rejected" === thenable; } -function noop$1() {} +function noop() {} function trackUsedThenable(thenableState, thenable, index) { index = thenableState[index]; void 0 === index ? thenableState.push(thenable) - : index !== thenable && (thenable.then(noop$1, noop$1), (thenable = index)); + : index !== thenable && (thenable.then(noop, noop), (thenable = index)); switch (thenable.status) { case "fulfilled": return thenable.value; @@ -2316,7 +2491,7 @@ function trackUsedThenable(thenableState, thenable, index) { throw thenable.reason; default: "string" === typeof thenable.status - ? thenable.then(noop$1, noop$1) + ? thenable.then(noop, noop) : ((thenableState = thenable), (thenableState.status = "pending"), thenableState.then( @@ -5771,7 +5946,7 @@ function completeWork(current, workInProgress, renderLanes) { recyclableInstance, workInProgress ); - recyclableInstance = new ReactFabricHostComponent( + recyclableInstance = ReactNativePrivateInterface.createPublicInstance( current, renderLanes, workInProgress @@ -7215,12 +7390,12 @@ function ensureRootIsScheduled(root, currentTime) { 0 < lanes; ) { - var index$5 = 31 - clz32(lanes), - lane = 1 << index$5, - expirationTime = expirationTimes[index$5]; + var index$4 = 31 - clz32(lanes), + lane = 1 << index$4, + expirationTime = expirationTimes[index$4]; if (-1 === expirationTime) { if (0 === (lane & suspendedLanes) || 0 !== (lane & pingedLanes)) - expirationTimes[index$5] = computeExpirationTime(lane, currentTime); + expirationTimes[index$4] = computeExpirationTime(lane, currentTime); } else expirationTime <= currentTime && (root.expiredLanes |= lane); lanes &= ~lane; } @@ -7392,10 +7567,10 @@ function performConcurrentWorkOnRoot(root, didTimeout) { exitStatus = lanes; errorRetryLanes = root.eventTimes; for (errorRetryLanes$98 = -1; 0 < exitStatus; ) { - var index$4 = 31 - clz32(exitStatus), - lane = 1 << index$4; - index$4 = errorRetryLanes[index$4]; - index$4 > errorRetryLanes$98 && (errorRetryLanes$98 = index$4); + var index$3 = 31 - clz32(exitStatus), + lane = 1 << index$3; + index$3 = errorRetryLanes[index$3]; + index$3 > errorRetryLanes$98 && (errorRetryLanes$98 = index$3); exitStatus &= ~lane; } exitStatus = errorRetryLanes$98; @@ -7521,9 +7696,9 @@ function markRootSuspended(root, suspendedLanes) { root.suspendedLanes |= suspendedLanes; root.pingedLanes &= ~suspendedLanes; for (root = root.expirationTimes; 0 < suspendedLanes; ) { - var index$6 = 31 - clz32(suspendedLanes), - lane = 1 << index$6; - root[index$6] = -1; + var index$5 = 31 - clz32(suspendedLanes), + lane = 1 << index$5; + root[index$5] = -1; suspendedLanes &= ~lane; } } @@ -9173,264 +9348,20 @@ function findNodeHandle(componentOrHandle) { null != componentOrHandle.canonical.nativeTag ) return componentOrHandle.canonical.nativeTag; - var nativeTag = componentOrHandle.__nativeTag; + var nativeTag = + ReactNativePrivateInterface.getNativeTagFromPublicInstance( + componentOrHandle + ); if (nativeTag) return nativeTag; componentOrHandle = findHostInstance(componentOrHandle); return null == componentOrHandle ? componentOrHandle : null != componentOrHandle._nativeTag ? componentOrHandle._nativeTag - : componentOrHandle.__nativeTag; -} -function getNodeFromInternalInstanceHandle(internalInstanceHandle) { - return ( - internalInstanceHandle && - internalInstanceHandle.stateNode && - internalInstanceHandle.stateNode.node - ); -} -var _nativeFabricUIManage$1 = nativeFabricUIManager, - fabricMeasure = _nativeFabricUIManage$1.measure, - fabricMeasureInWindow = _nativeFabricUIManage$1.measureInWindow, - fabricMeasureLayout = _nativeFabricUIManage$1.measureLayout, - _setNativeProps = _nativeFabricUIManage$1.setNativeProps, - fabricGetBoundingClientRect = _nativeFabricUIManage$1.getBoundingClientRect; -function noop() {} -var ReactFabricHostComponent = (function () { - function ReactFabricHostComponent(tag, viewConfig, internalInstanceHandle) { - this.__nativeTag = tag; - this._viewConfig = viewConfig; - this.__internalInstanceHandle = internalInstanceHandle; - } - var _proto = ReactFabricHostComponent.prototype; - _proto.blur = function () { - ReactNativePrivateInterface.TextInputState.blurTextInput(this); - }; - _proto.focus = function () { - ReactNativePrivateInterface.TextInputState.focusTextInput(this); - }; - _proto.measure = function (callback) { - var node = getNodeFromInternalInstanceHandle(this.__internalInstanceHandle); - null != node && fabricMeasure(node, callback); - }; - _proto.measureInWindow = function (callback) { - var node = getNodeFromInternalInstanceHandle(this.__internalInstanceHandle); - null != node && fabricMeasureInWindow(node, callback); - }; - _proto.measureLayout = function (relativeToNativeNode, onSuccess, onFail) { - if ( - "number" !== typeof relativeToNativeNode && - relativeToNativeNode instanceof ReactFabricHostComponent - ) { - var toStateNode = getNodeFromInternalInstanceHandle( - this.__internalInstanceHandle - ); - relativeToNativeNode = getNodeFromInternalInstanceHandle( - relativeToNativeNode.__internalInstanceHandle + : ReactNativePrivateInterface.getNativeTagFromPublicInstance( + componentOrHandle ); - null != toStateNode && - null != relativeToNativeNode && - fabricMeasureLayout( - toStateNode, - relativeToNativeNode, - null != onFail ? onFail : noop, - null != onSuccess ? onSuccess : noop - ); - } - }; - _proto.unstable_getBoundingClientRect = function () { - var node = getNodeFromInternalInstanceHandle(this.__internalInstanceHandle); - return null != node && (node = fabricGetBoundingClientRect(node)) - ? new DOMRect(node[0], node[1], node[2], node[3]) - : new DOMRect(0, 0, 0, 0); - }; - _proto.setNativeProps = function (nativeProps) { - nativeProps = diffProperties( - null, - emptyObject$1, - nativeProps, - this._viewConfig.validAttributes - ); - var node = getNodeFromInternalInstanceHandle(this.__internalInstanceHandle); - null != node && null != nativeProps && _setNativeProps(node, nativeProps); - }; - return ReactFabricHostComponent; -})(); -function batchedUpdatesImpl(fn, bookkeeping) { - return fn(bookkeeping); -} -var isInsideEventHandler = !1; -function batchedUpdates(fn, bookkeeping) { - if (isInsideEventHandler) return fn(bookkeeping); - isInsideEventHandler = !0; - try { - return batchedUpdatesImpl(fn, bookkeeping); - } finally { - isInsideEventHandler = !1; - } -} -var eventQueue = null; -function executeDispatchesAndReleaseTopLevel(e) { - if (e) { - var dispatchListeners = e._dispatchListeners, - dispatchInstances = e._dispatchInstances; - if (isArrayImpl(dispatchListeners)) - for ( - var i = 0; - i < dispatchListeners.length && !e.isPropagationStopped(); - i++ - ) - executeDispatch(e, dispatchListeners[i], dispatchInstances[i]); - else - dispatchListeners && - executeDispatch(e, dispatchListeners, dispatchInstances); - e._dispatchListeners = null; - e._dispatchInstances = null; - e.isPersistent() || e.constructor.release(e); - } -} -function dispatchEvent(target, topLevelType, nativeEvent) { - var eventTarget = null; - if (null != target) { - var stateNode = target.stateNode; - null != stateNode && (eventTarget = getPublicInstance(stateNode)); - } - batchedUpdates(function () { - var event = { eventName: topLevelType, nativeEvent: nativeEvent }; - ReactNativePrivateInterface.RawEventEmitter.emit(topLevelType, event); - ReactNativePrivateInterface.RawEventEmitter.emit("*", event); - event = eventTarget; - for ( - var events = null, legacyPlugins = plugins, i = 0; - i < legacyPlugins.length; - i++ - ) { - var possiblePlugin = legacyPlugins[i]; - possiblePlugin && - (possiblePlugin = possiblePlugin.extractEvents( - topLevelType, - target, - nativeEvent, - event - )) && - (events = accumulateInto(events, possiblePlugin)); - } - event = events; - null !== event && (eventQueue = accumulateInto(eventQueue, event)); - event = eventQueue; - eventQueue = null; - if (event) { - forEachAccumulated(event, executeDispatchesAndReleaseTopLevel); - if (eventQueue) - throw Error( - "processEventQueue(): Additional events were enqueued while processing an event queue. Support for this has not yet been implemented." - ); - if (hasRethrowError) - throw ( - ((event = rethrowError), - (hasRethrowError = !1), - (rethrowError = null), - event) - ); - } - }); -} -function shim() { - throw Error( - "The current renderer does not support hydration. This error is likely caused by a bug in React. Please file an issue." - ); -} -var _nativeFabricUIManage = nativeFabricUIManager, - createNode = _nativeFabricUIManage.createNode, - cloneNode = _nativeFabricUIManage.cloneNode, - cloneNodeWithNewChildren = _nativeFabricUIManage.cloneNodeWithNewChildren, - cloneNodeWithNewChildrenAndProps = - _nativeFabricUIManage.cloneNodeWithNewChildrenAndProps, - cloneNodeWithNewProps = _nativeFabricUIManage.cloneNodeWithNewProps, - createChildNodeSet = _nativeFabricUIManage.createChildSet, - appendChildNode = _nativeFabricUIManage.appendChild, - appendChildNodeToSet = _nativeFabricUIManage.appendChildToSet, - completeRoot = _nativeFabricUIManage.completeRoot, - registerEventHandler = _nativeFabricUIManage.registerEventHandler, - FabricDiscretePriority = _nativeFabricUIManage.unstable_DiscreteEventPriority, - fabricGetCurrentEventPriority = - _nativeFabricUIManage.unstable_getCurrentEventPriority, - getViewConfigForType = - ReactNativePrivateInterface.ReactNativeViewConfigRegistry.get, - nextReactTag = 2; -registerEventHandler && registerEventHandler(dispatchEvent); -function createTextInstance( - text, - rootContainerInstance, - hostContext, - internalInstanceHandle -) { - hostContext = nextReactTag; - nextReactTag += 2; - return { - node: createNode( - hostContext, - "RCTRawText", - rootContainerInstance, - { text: text }, - internalInstanceHandle - ) - }; -} -function getPublicInstance(instance) { - return null != instance.canonical && null != instance.canonical.publicInstance - ? instance.canonical.publicInstance - : null != instance._nativeTag - ? instance - : null; -} -var scheduleTimeout = setTimeout, - cancelTimeout = clearTimeout; -function cloneHiddenInstance(instance) { - var node = instance.node; - var JSCompiler_inline_result = diffProperties( - null, - emptyObject$1, - { style: { display: "none" } }, - instance.canonical.viewConfig.validAttributes - ); - return { - node: cloneNodeWithNewProps(node, JSCompiler_inline_result), - canonical: instance.canonical - }; } -function getInstanceFromNode(node) { - return null != node.canonical && null != node.canonical.internalInstanceHandle - ? node.canonical.internalInstanceHandle - : node; -} -getFiberCurrentPropsFromNode$1 = function (instance) { - return instance.canonical.currentProps; -}; -getInstanceFromNode$1 = getInstanceFromNode; -getNodeFromInstance$1 = function (fiber) { - fiber = getPublicInstance(fiber.stateNode); - if (null == fiber) throw Error("Could not find host instance from fiber"); - return fiber; -}; -ResponderEventPlugin.injection.injectGlobalResponderHandler({ - onChange: function (from, to, blockNativeResponder) { - from && - from.stateNode && - nativeFabricUIManager.setIsJSResponder( - from.stateNode.node, - !1, - blockNativeResponder || !1 - ); - to && - to.stateNode && - nativeFabricUIManager.setIsJSResponder( - to.stateNode.node, - !0, - blockNativeResponder || !1 - ); - } -}); var emptyObject = {}; function createHierarchy(fiberHierarchy) { return fiberHierarchy.map(function (fiber$jscomp$0) { @@ -9506,7 +9437,7 @@ var roots = new Map(), devToolsConfig$jscomp$inline_1049 = { findFiberByHostInstance: getInstanceFromNode, bundleType: 0, - version: "18.3.0-next-f77099b6f-20230322", + version: "18.3.0-next-9c54b29b4-20230322", rendererPackageName: "react-native-renderer", rendererConfig: { getInspectorDataForViewTag: function () { @@ -9548,7 +9479,7 @@ var internals$jscomp$inline_1292 = { scheduleRoot: null, setRefreshHandler: null, getCurrentFiber: null, - reconcilerVersion: "18.3.0-next-f77099b6f-20230322" + reconcilerVersion: "18.3.0-next-9c54b29b4-20230322" }; if ("undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__) { var hook$jscomp$inline_1293 = __REACT_DEVTOOLS_GLOBAL_HOOK__; @@ -9573,12 +9504,11 @@ exports.createPortal = function (children, containerTag) { }; exports.dispatchCommand = function (handle, command, args) { var nativeTag = - null != handle._nativeTag ? handle._nativeTag : handle.__nativeTag; + null != handle._nativeTag + ? handle._nativeTag + : ReactNativePrivateInterface.getNativeTagFromPublicInstance(handle); null != nativeTag && - ((handle = - null == handle.__internalInstanceHandle - ? null - : getNodeFromInternalInstanceHandle(handle.__internalInstanceHandle)), + ((handle = ReactNativePrivateInterface.getNodeFromPublicInstance(handle)), null != handle ? nativeFabricUIManager.dispatchCommand(handle, command, args) : ReactNativePrivateInterface.UIManager.dispatchViewManagerCommand( @@ -9630,7 +9560,13 @@ exports.getInspectorDataForInstance = function (closestInstance) { source: source }; }; -exports.getNodeFromInternalInstanceHandle = getNodeFromInternalInstanceHandle; +exports.getNodeFromInternalInstanceHandle = function (internalInstanceHandle) { + return ( + internalInstanceHandle && + internalInstanceHandle.stateNode && + internalInstanceHandle.stateNode.node + ); +}; exports.getPublicInstanceFromInternalInstanceHandle = function ( internalInstanceHandle ) { @@ -9669,12 +9605,11 @@ exports.render = function (element, containerTag, callback, concurrentRoot) { }; exports.sendAccessibilityEvent = function (handle, eventType) { var nativeTag = - null != handle._nativeTag ? handle._nativeTag : handle.__nativeTag; + null != handle._nativeTag + ? handle._nativeTag + : ReactNativePrivateInterface.getNativeTagFromPublicInstance(handle); null != nativeTag && - ((handle = - null == handle.__internalInstanceHandle - ? null - : getNodeFromInternalInstanceHandle(handle.__internalInstanceHandle)), + ((handle = ReactNativePrivateInterface.getNodeFromPublicInstance(handle)), null != handle ? nativeFabricUIManager.sendAccessibilityEvent(handle, eventType) : ReactNativePrivateInterface.legacySendAccessibilityEvent( diff --git a/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-profiling.fb.js b/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-profiling.fb.js index 6984e329349e7..326678752733a 100644 --- a/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-profiling.fb.js +++ b/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-profiling.fb.js @@ -24,9 +24,9 @@ if ( "use strict"; require("react-native/Libraries/ReactPrivate/ReactNativePrivateInitializeCore"); var ReactNativePrivateInterface = require("react-native/Libraries/ReactPrivate/ReactNativePrivateInterface"), - React = require("react"), dynamicFlags = require("ReactNativeInternalFeatureFlags"), - Scheduler = require("scheduler"); + Scheduler = require("scheduler"), + React = require("react"); function invokeGuardedCallbackImpl(name, func, context) { var funcArgs = Array.prototype.slice.call(arguments, 3); try { @@ -1246,367 +1246,181 @@ function diffProperties(updatePayload, prevProps, nextProps, validAttributes) { ))))); return updatePayload; } -var ReactSharedInternals = - React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED, - enableUseRefAccessWarning = dynamicFlags.enableUseRefAccessWarning, - REACT_ELEMENT_TYPE = Symbol.for("react.element"), - REACT_PORTAL_TYPE = Symbol.for("react.portal"), - REACT_FRAGMENT_TYPE = Symbol.for("react.fragment"), - REACT_STRICT_MODE_TYPE = Symbol.for("react.strict_mode"), - REACT_PROFILER_TYPE = Symbol.for("react.profiler"), - REACT_PROVIDER_TYPE = Symbol.for("react.provider"), - REACT_CONTEXT_TYPE = Symbol.for("react.context"), - REACT_SERVER_CONTEXT_TYPE = Symbol.for("react.server_context"), - REACT_FORWARD_REF_TYPE = Symbol.for("react.forward_ref"), - REACT_SUSPENSE_TYPE = Symbol.for("react.suspense"), - REACT_SUSPENSE_LIST_TYPE = Symbol.for("react.suspense_list"), - REACT_MEMO_TYPE = Symbol.for("react.memo"), - REACT_LAZY_TYPE = Symbol.for("react.lazy"); -Symbol.for("react.scope"); -Symbol.for("react.debug_trace_mode"); -var REACT_OFFSCREEN_TYPE = Symbol.for("react.offscreen"), - REACT_LEGACY_HIDDEN_TYPE = Symbol.for("react.legacy_hidden"); -Symbol.for("react.cache"); -Symbol.for("react.tracing_marker"); -var REACT_SERVER_CONTEXT_DEFAULT_VALUE_NOT_LOADED = Symbol.for( - "react.default_value" - ), - REACT_MEMO_CACHE_SENTINEL = Symbol.for("react.memo_cache_sentinel"), - MAYBE_ITERATOR_SYMBOL = Symbol.iterator; -function getIteratorFn(maybeIterable) { - if (null === maybeIterable || "object" !== typeof maybeIterable) return null; - maybeIterable = - (MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL]) || - maybeIterable["@@iterator"]; - return "function" === typeof maybeIterable ? maybeIterable : null; -} -function getComponentNameFromType(type) { - if (null == type) return null; - if ("function" === typeof type) return type.displayName || type.name || null; - if ("string" === typeof type) return type; - switch (type) { - case REACT_FRAGMENT_TYPE: - return "Fragment"; - case REACT_PORTAL_TYPE: - return "Portal"; - case REACT_PROFILER_TYPE: - return "Profiler"; - case REACT_STRICT_MODE_TYPE: - return "StrictMode"; - case REACT_SUSPENSE_TYPE: - return "Suspense"; - case REACT_SUSPENSE_LIST_TYPE: - return "SuspenseList"; - } - if ("object" === typeof type) - switch (type.$$typeof) { - case REACT_CONTEXT_TYPE: - return (type.displayName || "Context") + ".Consumer"; - case REACT_PROVIDER_TYPE: - return (type._context.displayName || "Context") + ".Provider"; - case REACT_FORWARD_REF_TYPE: - var innerType = type.render; - type = type.displayName; - type || - ((type = innerType.displayName || innerType.name || ""), - (type = "" !== type ? "ForwardRef(" + type + ")" : "ForwardRef")); - return type; - case REACT_MEMO_TYPE: - return ( - (innerType = type.displayName || null), - null !== innerType - ? innerType - : getComponentNameFromType(type.type) || "Memo" - ); - case REACT_LAZY_TYPE: - innerType = type._payload; - type = type._init; - try { - return getComponentNameFromType(type(innerType)); - } catch (x) { - break; - } - case REACT_SERVER_CONTEXT_TYPE: - return (type.displayName || type._globalName) + ".Provider"; - } - return null; +function batchedUpdatesImpl(fn, bookkeeping) { + return fn(bookkeeping); } -function getComponentNameFromFiber(fiber) { - var type = fiber.type; - switch (fiber.tag) { - case 24: - return "Cache"; - case 9: - return (type.displayName || "Context") + ".Consumer"; - case 10: - return (type._context.displayName || "Context") + ".Provider"; - case 18: - return "DehydratedFragment"; - case 11: - return ( - (fiber = type.render), - (fiber = fiber.displayName || fiber.name || ""), - type.displayName || - ("" !== fiber ? "ForwardRef(" + fiber + ")" : "ForwardRef") - ); - case 7: - return "Fragment"; - case 26: - case 27: - case 5: - return type; - case 4: - return "Portal"; - case 3: - return "Root"; - case 6: - return "Text"; - case 16: - return getComponentNameFromType(type); - case 8: - return type === REACT_STRICT_MODE_TYPE ? "StrictMode" : "Mode"; - case 22: - return "Offscreen"; - case 12: - return "Profiler"; - case 21: - return "Scope"; - case 13: - return "Suspense"; - case 19: - return "SuspenseList"; - case 25: - return "TracingMarker"; - case 1: - case 0: - case 17: - case 2: - case 14: - case 15: - if ("function" === typeof type) - return type.displayName || type.name || null; - if ("string" === typeof type) return type; - break; - case 23: - return "LegacyHidden"; +var isInsideEventHandler = !1; +function batchedUpdates$1(fn, bookkeeping) { + if (isInsideEventHandler) return fn(bookkeeping); + isInsideEventHandler = !0; + try { + return batchedUpdatesImpl(fn, bookkeeping); + } finally { + isInsideEventHandler = !1; } - return null; } -function getNearestMountedFiber(fiber) { - var node = fiber, - nearestMounted = fiber; - if (fiber.alternate) for (; node.return; ) node = node.return; - else { - fiber = node; - do - (node = fiber), - 0 !== (node.flags & 4098) && (nearestMounted = node.return), - (fiber = node.return); - while (fiber); +var eventQueue = null; +function executeDispatchesAndReleaseTopLevel(e) { + if (e) { + var dispatchListeners = e._dispatchListeners, + dispatchInstances = e._dispatchInstances; + if (isArrayImpl(dispatchListeners)) + for ( + var i = 0; + i < dispatchListeners.length && !e.isPropagationStopped(); + i++ + ) + executeDispatch(e, dispatchListeners[i], dispatchInstances[i]); + else + dispatchListeners && + executeDispatch(e, dispatchListeners, dispatchInstances); + e._dispatchListeners = null; + e._dispatchInstances = null; + e.isPersistent() || e.constructor.release(e); } - return 3 === node.tag ? nearestMounted : null; -} -function assertIsMounted(fiber) { - if (getNearestMountedFiber(fiber) !== fiber) - throw Error("Unable to find node on an unmounted component."); } -function findCurrentFiberUsingSlowPath(fiber) { - var alternate = fiber.alternate; - if (!alternate) { - alternate = getNearestMountedFiber(fiber); - if (null === alternate) - throw Error("Unable to find node on an unmounted component."); - return alternate !== fiber ? null : fiber; +function dispatchEvent(target, topLevelType, nativeEvent) { + var eventTarget = null; + if (null != target) { + var stateNode = target.stateNode; + null != stateNode && (eventTarget = getPublicInstance(stateNode)); } - for (var a = fiber, b = alternate; ; ) { - var parentA = a.return; - if (null === parentA) break; - var parentB = parentA.alternate; - if (null === parentB) { - b = parentA.return; - if (null !== b) { - a = b; - continue; - } - break; + batchedUpdates$1(function () { + var event = { eventName: topLevelType, nativeEvent: nativeEvent }; + ReactNativePrivateInterface.RawEventEmitter.emit(topLevelType, event); + ReactNativePrivateInterface.RawEventEmitter.emit("*", event); + event = eventTarget; + for ( + var events = null, legacyPlugins = plugins, i = 0; + i < legacyPlugins.length; + i++ + ) { + var possiblePlugin = legacyPlugins[i]; + possiblePlugin && + (possiblePlugin = possiblePlugin.extractEvents( + topLevelType, + target, + nativeEvent, + event + )) && + (events = accumulateInto(events, possiblePlugin)); } - if (parentA.child === parentB.child) { - for (parentB = parentA.child; parentB; ) { - if (parentB === a) return assertIsMounted(parentA), fiber; - if (parentB === b) return assertIsMounted(parentA), alternate; - parentB = parentB.sibling; - } - throw Error("Unable to find node on an unmounted component."); + event = events; + null !== event && (eventQueue = accumulateInto(eventQueue, event)); + event = eventQueue; + eventQueue = null; + if (event) { + forEachAccumulated(event, executeDispatchesAndReleaseTopLevel); + if (eventQueue) + throw Error( + "processEventQueue(): Additional events were enqueued while processing an event queue. Support for this has not yet been implemented." + ); + if (hasRethrowError) + throw ( + ((event = rethrowError), + (hasRethrowError = !1), + (rethrowError = null), + event) + ); } - if (a.return !== b.return) (a = parentA), (b = parentB); - else { - for (var didFindChild = !1, child$2 = parentA.child; child$2; ) { - if (child$2 === a) { - didFindChild = !0; - a = parentA; - b = parentB; - break; - } - if (child$2 === b) { - didFindChild = !0; - b = parentA; - a = parentB; + }); +} +var enableUseRefAccessWarning = dynamicFlags.enableUseRefAccessWarning, + scheduleCallback$1 = Scheduler.unstable_scheduleCallback, + cancelCallback$1 = Scheduler.unstable_cancelCallback, + shouldYield = Scheduler.unstable_shouldYield, + requestPaint = Scheduler.unstable_requestPaint, + now$1 = Scheduler.unstable_now, + ImmediatePriority = Scheduler.unstable_ImmediatePriority, + UserBlockingPriority = Scheduler.unstable_UserBlockingPriority, + NormalPriority = Scheduler.unstable_NormalPriority, + IdlePriority = Scheduler.unstable_IdlePriority, + ReactSharedInternals = + React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED, + rendererID = null, + injectedHook = null, + injectedProfilingHooks = null, + isDevToolsPresent = "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__; +function onCommitRoot(root, eventPriority) { + if (injectedHook && "function" === typeof injectedHook.onCommitFiberRoot) + try { + var didError = 128 === (root.current.flags & 128); + switch (eventPriority) { + case 2: + var schedulerPriority = ImmediatePriority; break; - } - child$2 = child$2.sibling; - } - if (!didFindChild) { - for (child$2 = parentB.child; child$2; ) { - if (child$2 === a) { - didFindChild = !0; - a = parentB; - b = parentA; - break; - } - if (child$2 === b) { - didFindChild = !0; - b = parentB; - a = parentA; - break; - } - child$2 = child$2.sibling; - } - if (!didFindChild) - throw Error( - "Child was not found in either parent set. This indicates a bug in React related to the return pointer. Please file an issue." - ); + case 8: + schedulerPriority = UserBlockingPriority; + break; + case 32: + schedulerPriority = NormalPriority; + break; + case 536870912: + schedulerPriority = IdlePriority; + break; + default: + schedulerPriority = NormalPriority; } - } - if (a.alternate !== b) - throw Error( - "Return fibers should always be each others' alternates. This error is likely caused by a bug in React. Please file an issue." + injectedHook.onCommitFiberRoot( + rendererID, + root, + schedulerPriority, + didError ); - } - if (3 !== a.tag) - throw Error("Unable to find node on an unmounted component."); - return a.stateNode.current === a ? fiber : alternate; + } catch (err) {} } -function findCurrentHostFiber(parent) { - parent = findCurrentFiberUsingSlowPath(parent); - return null !== parent ? findCurrentHostFiberImpl(parent) : null; +function injectProfilingHooks(profilingHooks) { + injectedProfilingHooks = profilingHooks; } -function findCurrentHostFiberImpl(node) { - var tag = node.tag; - if (5 === tag || 26 === tag || 27 === tag || 6 === tag) return node; - for (node = node.child; null !== node; ) { - tag = findCurrentHostFiberImpl(node); - if (null !== tag) return tag; - node = node.sibling; +function getLaneLabelMap() { + for (var map = new Map(), lane = 1, index$2 = 0; 31 > index$2; index$2++) { + var label = getLabelForLane(lane); + map.set(lane, label); + lane *= 2; } - return null; -} -function describeComponentFrame(name, source, ownerName) { - source = ""; - ownerName && (source = " (created by " + ownerName + ")"); - return "\n in " + (name || "Unknown") + source; -} -function describeFunctionComponentFrame(fn, source) { - return fn - ? describeComponentFrame(fn.displayName || fn.name || null, source, null) - : ""; -} -var hasOwnProperty = Object.prototype.hasOwnProperty, - valueStack = [], - index = -1; -function createCursor(defaultValue) { - return { current: defaultValue }; -} -function pop(cursor) { - 0 > index || - ((cursor.current = valueStack[index]), (valueStack[index] = null), index--); + return map; } -function push(cursor, value) { - index++; - valueStack[index] = cursor.current; - cursor.current = value; +function markCommitStopped() { + null !== injectedProfilingHooks && + "function" === typeof injectedProfilingHooks.markCommitStopped && + injectedProfilingHooks.markCommitStopped(); } -var emptyContextObject = {}, - contextStackCursor$1 = createCursor(emptyContextObject), - didPerformWorkStackCursor = createCursor(!1), - previousContext = emptyContextObject; -function getMaskedContext(workInProgress, unmaskedContext) { - var contextTypes = workInProgress.type.contextTypes; - if (!contextTypes) return emptyContextObject; - var instance = workInProgress.stateNode; - if ( - instance && - instance.__reactInternalMemoizedUnmaskedChildContext === unmaskedContext - ) - return instance.__reactInternalMemoizedMaskedChildContext; - var context = {}, - key; - for (key in contextTypes) context[key] = unmaskedContext[key]; - instance && - ((workInProgress = workInProgress.stateNode), - (workInProgress.__reactInternalMemoizedUnmaskedChildContext = - unmaskedContext), - (workInProgress.__reactInternalMemoizedMaskedChildContext = context)); - return context; +function markComponentRenderStarted(fiber) { + null !== injectedProfilingHooks && + "function" === typeof injectedProfilingHooks.markComponentRenderStarted && + injectedProfilingHooks.markComponentRenderStarted(fiber); } -function isContextProvider(type) { - type = type.childContextTypes; - return null !== type && void 0 !== type; +function markComponentRenderStopped() { + null !== injectedProfilingHooks && + "function" === typeof injectedProfilingHooks.markComponentRenderStopped && + injectedProfilingHooks.markComponentRenderStopped(); } -function popContext() { - pop(didPerformWorkStackCursor); - pop(contextStackCursor$1); +function markComponentLayoutEffectUnmountStarted(fiber) { + null !== injectedProfilingHooks && + "function" === + typeof injectedProfilingHooks.markComponentLayoutEffectUnmountStarted && + injectedProfilingHooks.markComponentLayoutEffectUnmountStarted(fiber); } -function pushTopLevelContextObject(fiber, context, didChange) { - if (contextStackCursor$1.current !== emptyContextObject) - throw Error( - "Unexpected context found on stack. This error is likely caused by a bug in React. Please file an issue." - ); - push(contextStackCursor$1, context); - push(didPerformWorkStackCursor, didChange); +function markComponentLayoutEffectUnmountStopped() { + null !== injectedProfilingHooks && + "function" === + typeof injectedProfilingHooks.markComponentLayoutEffectUnmountStopped && + injectedProfilingHooks.markComponentLayoutEffectUnmountStopped(); } -function processChildContext(fiber, type, parentContext) { - var instance = fiber.stateNode; - type = type.childContextTypes; - if ("function" !== typeof instance.getChildContext) return parentContext; - instance = instance.getChildContext(); - for (var contextKey in instance) - if (!(contextKey in type)) - throw Error( - (getComponentNameFromFiber(fiber) || "Unknown") + - '.getChildContext(): key "' + - contextKey + - '" is not defined in childContextTypes.' - ); - return assign({}, parentContext, instance); +function markRenderStarted(lanes) { + null !== injectedProfilingHooks && + "function" === typeof injectedProfilingHooks.markRenderStarted && + injectedProfilingHooks.markRenderStarted(lanes); } -function pushContextProvider(workInProgress) { - workInProgress = - ((workInProgress = workInProgress.stateNode) && - workInProgress.__reactInternalMemoizedMergedChildContext) || - emptyContextObject; - previousContext = contextStackCursor$1.current; - push(contextStackCursor$1, workInProgress); - push(didPerformWorkStackCursor, didPerformWorkStackCursor.current); - return !0; +function markRenderStopped() { + null !== injectedProfilingHooks && + "function" === typeof injectedProfilingHooks.markRenderStopped && + injectedProfilingHooks.markRenderStopped(); } -function invalidateContextProvider(workInProgress, type, didChange) { - var instance = workInProgress.stateNode; - if (!instance) - throw Error( - "Expected to have an instance by this point. This error is likely caused by a bug in React. Please file an issue." - ); - didChange - ? ((workInProgress = processChildContext( - workInProgress, - type, - previousContext - )), - (instance.__reactInternalMemoizedMergedChildContext = workInProgress), - pop(didPerformWorkStackCursor), - pop(contextStackCursor$1), - push(contextStackCursor$1, workInProgress)) - : pop(didPerformWorkStackCursor); - push(didPerformWorkStackCursor, didChange); +function markStateUpdateScheduled(fiber, lane) { + null !== injectedProfilingHooks && + "function" === typeof injectedProfilingHooks.markStateUpdateScheduled && + injectedProfilingHooks.markStateUpdateScheduled(fiber, lane); } var clz32 = Math.clz32 ? Math.clz32 : clz32Fallback, log = Math.log, @@ -1829,150 +1643,511 @@ function markRootFinished(root, remainingLanes) { noLongerPendingLanes &= ~lane; } } -function markRootEntangled(root, entangledLanes) { - var rootEntangledLanes = (root.entangledLanes |= entangledLanes); - for (root = root.entanglements; rootEntangledLanes; ) { - var index$8 = 31 - clz32(rootEntangledLanes), - lane = 1 << index$8; - (lane & entangledLanes) | (root[index$8] & entangledLanes) && - (root[index$8] |= entangledLanes); - rootEntangledLanes &= ~lane; - } +function markRootEntangled(root, entangledLanes) { + var rootEntangledLanes = (root.entangledLanes |= entangledLanes); + for (root = root.entanglements; rootEntangledLanes; ) { + var index$8 = 31 - clz32(rootEntangledLanes), + lane = 1 << index$8; + (lane & entangledLanes) | (root[index$8] & entangledLanes) && + (root[index$8] |= entangledLanes); + rootEntangledLanes &= ~lane; + } +} +function addFiberToLanesMap(root, fiber, lanes) { + if (isDevToolsPresent) + for (root = root.pendingUpdatersLaneMap; 0 < lanes; ) { + var index$9 = 31 - clz32(lanes), + lane = 1 << index$9; + root[index$9].add(fiber); + lanes &= ~lane; + } +} +function movePendingFibersToMemoized(root, lanes) { + if (isDevToolsPresent) + for ( + var pendingUpdatersLaneMap = root.pendingUpdatersLaneMap, + memoizedUpdaters = root.memoizedUpdaters; + 0 < lanes; + + ) { + var index$10 = 31 - clz32(lanes); + root = 1 << index$10; + index$10 = pendingUpdatersLaneMap[index$10]; + 0 < index$10.size && + (index$10.forEach(function (fiber) { + var alternate = fiber.alternate; + (null !== alternate && memoizedUpdaters.has(alternate)) || + memoizedUpdaters.add(fiber); + }), + index$10.clear()); + lanes &= ~root; + } +} +var currentUpdatePriority = 0; +function lanesToEventPriority(lanes) { + lanes &= -lanes; + return 2 < lanes + ? 8 < lanes + ? 0 !== (lanes & 268435455) + ? 32 + : 536870912 + : 8 + : 2; +} +function shim() { + throw Error( + "The current renderer does not support hydration. This error is likely caused by a bug in React. Please file an issue." + ); +} +var _nativeFabricUIManage = nativeFabricUIManager, + createNode = _nativeFabricUIManage.createNode, + cloneNode = _nativeFabricUIManage.cloneNode, + cloneNodeWithNewChildren = _nativeFabricUIManage.cloneNodeWithNewChildren, + cloneNodeWithNewChildrenAndProps = + _nativeFabricUIManage.cloneNodeWithNewChildrenAndProps, + cloneNodeWithNewProps = _nativeFabricUIManage.cloneNodeWithNewProps, + createChildNodeSet = _nativeFabricUIManage.createChildSet, + appendChildNode = _nativeFabricUIManage.appendChild, + appendChildNodeToSet = _nativeFabricUIManage.appendChildToSet, + completeRoot = _nativeFabricUIManage.completeRoot, + registerEventHandler = _nativeFabricUIManage.registerEventHandler, + FabricDiscretePriority = _nativeFabricUIManage.unstable_DiscreteEventPriority, + fabricGetCurrentEventPriority = + _nativeFabricUIManage.unstable_getCurrentEventPriority, + getViewConfigForType = + ReactNativePrivateInterface.ReactNativeViewConfigRegistry.get, + nextReactTag = 2; +registerEventHandler && registerEventHandler(dispatchEvent); +function createTextInstance( + text, + rootContainerInstance, + hostContext, + internalInstanceHandle +) { + hostContext = nextReactTag; + nextReactTag += 2; + return { + node: createNode( + hostContext, + "RCTRawText", + rootContainerInstance, + { text: text }, + internalInstanceHandle + ) + }; +} +function getPublicInstance(instance) { + return null != instance.canonical && null != instance.canonical.publicInstance + ? instance.canonical.publicInstance + : null != instance._nativeTag + ? instance + : null; +} +var scheduleTimeout = setTimeout, + cancelTimeout = clearTimeout; +function cloneHiddenInstance(instance) { + var node = instance.node; + var JSCompiler_inline_result = diffProperties( + null, + emptyObject$1, + { style: { display: "none" } }, + instance.canonical.viewConfig.validAttributes + ); + return { + node: cloneNodeWithNewProps(node, JSCompiler_inline_result), + canonical: instance.canonical + }; +} +function getInstanceFromNode(node) { + return null != node.canonical && null != node.canonical.internalInstanceHandle + ? node.canonical.internalInstanceHandle + : node; +} +getFiberCurrentPropsFromNode$1 = function (instance) { + return instance.canonical.currentProps; +}; +getInstanceFromNode$1 = getInstanceFromNode; +getNodeFromInstance$1 = function (fiber) { + fiber = getPublicInstance(fiber.stateNode); + if (null == fiber) throw Error("Could not find host instance from fiber"); + return fiber; +}; +ResponderEventPlugin.injection.injectGlobalResponderHandler({ + onChange: function (from, to, blockNativeResponder) { + from && + from.stateNode && + nativeFabricUIManager.setIsJSResponder( + from.stateNode.node, + !1, + blockNativeResponder || !1 + ); + to && + to.stateNode && + nativeFabricUIManager.setIsJSResponder( + to.stateNode.node, + !0, + blockNativeResponder || !1 + ); + } +}); +var REACT_ELEMENT_TYPE = Symbol.for("react.element"), + REACT_PORTAL_TYPE = Symbol.for("react.portal"), + REACT_FRAGMENT_TYPE = Symbol.for("react.fragment"), + REACT_STRICT_MODE_TYPE = Symbol.for("react.strict_mode"), + REACT_PROFILER_TYPE = Symbol.for("react.profiler"), + REACT_PROVIDER_TYPE = Symbol.for("react.provider"), + REACT_CONTEXT_TYPE = Symbol.for("react.context"), + REACT_SERVER_CONTEXT_TYPE = Symbol.for("react.server_context"), + REACT_FORWARD_REF_TYPE = Symbol.for("react.forward_ref"), + REACT_SUSPENSE_TYPE = Symbol.for("react.suspense"), + REACT_SUSPENSE_LIST_TYPE = Symbol.for("react.suspense_list"), + REACT_MEMO_TYPE = Symbol.for("react.memo"), + REACT_LAZY_TYPE = Symbol.for("react.lazy"); +Symbol.for("react.scope"); +Symbol.for("react.debug_trace_mode"); +var REACT_OFFSCREEN_TYPE = Symbol.for("react.offscreen"), + REACT_LEGACY_HIDDEN_TYPE = Symbol.for("react.legacy_hidden"); +Symbol.for("react.cache"); +Symbol.for("react.tracing_marker"); +var REACT_SERVER_CONTEXT_DEFAULT_VALUE_NOT_LOADED = Symbol.for( + "react.default_value" + ), + REACT_MEMO_CACHE_SENTINEL = Symbol.for("react.memo_cache_sentinel"), + MAYBE_ITERATOR_SYMBOL = Symbol.iterator; +function getIteratorFn(maybeIterable) { + if (null === maybeIterable || "object" !== typeof maybeIterable) return null; + maybeIterable = + (MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL]) || + maybeIterable["@@iterator"]; + return "function" === typeof maybeIterable ? maybeIterable : null; +} +function getComponentNameFromType(type) { + if (null == type) return null; + if ("function" === typeof type) return type.displayName || type.name || null; + if ("string" === typeof type) return type; + switch (type) { + case REACT_FRAGMENT_TYPE: + return "Fragment"; + case REACT_PORTAL_TYPE: + return "Portal"; + case REACT_PROFILER_TYPE: + return "Profiler"; + case REACT_STRICT_MODE_TYPE: + return "StrictMode"; + case REACT_SUSPENSE_TYPE: + return "Suspense"; + case REACT_SUSPENSE_LIST_TYPE: + return "SuspenseList"; + } + if ("object" === typeof type) + switch (type.$$typeof) { + case REACT_CONTEXT_TYPE: + return (type.displayName || "Context") + ".Consumer"; + case REACT_PROVIDER_TYPE: + return (type._context.displayName || "Context") + ".Provider"; + case REACT_FORWARD_REF_TYPE: + var innerType = type.render; + type = type.displayName; + type || + ((type = innerType.displayName || innerType.name || ""), + (type = "" !== type ? "ForwardRef(" + type + ")" : "ForwardRef")); + return type; + case REACT_MEMO_TYPE: + return ( + (innerType = type.displayName || null), + null !== innerType + ? innerType + : getComponentNameFromType(type.type) || "Memo" + ); + case REACT_LAZY_TYPE: + innerType = type._payload; + type = type._init; + try { + return getComponentNameFromType(type(innerType)); + } catch (x) { + break; + } + case REACT_SERVER_CONTEXT_TYPE: + return (type.displayName || type._globalName) + ".Provider"; + } + return null; +} +function getComponentNameFromFiber(fiber) { + var type = fiber.type; + switch (fiber.tag) { + case 24: + return "Cache"; + case 9: + return (type.displayName || "Context") + ".Consumer"; + case 10: + return (type._context.displayName || "Context") + ".Provider"; + case 18: + return "DehydratedFragment"; + case 11: + return ( + (fiber = type.render), + (fiber = fiber.displayName || fiber.name || ""), + type.displayName || + ("" !== fiber ? "ForwardRef(" + fiber + ")" : "ForwardRef") + ); + case 7: + return "Fragment"; + case 26: + case 27: + case 5: + return type; + case 4: + return "Portal"; + case 3: + return "Root"; + case 6: + return "Text"; + case 16: + return getComponentNameFromType(type); + case 8: + return type === REACT_STRICT_MODE_TYPE ? "StrictMode" : "Mode"; + case 22: + return "Offscreen"; + case 12: + return "Profiler"; + case 21: + return "Scope"; + case 13: + return "Suspense"; + case 19: + return "SuspenseList"; + case 25: + return "TracingMarker"; + case 1: + case 0: + case 17: + case 2: + case 14: + case 15: + if ("function" === typeof type) + return type.displayName || type.name || null; + if ("string" === typeof type) return type; + break; + case 23: + return "LegacyHidden"; + } + return null; +} +function getNearestMountedFiber(fiber) { + var node = fiber, + nearestMounted = fiber; + if (fiber.alternate) for (; node.return; ) node = node.return; + else { + fiber = node; + do + (node = fiber), + 0 !== (node.flags & 4098) && (nearestMounted = node.return), + (fiber = node.return); + while (fiber); + } + return 3 === node.tag ? nearestMounted : null; +} +function assertIsMounted(fiber) { + if (getNearestMountedFiber(fiber) !== fiber) + throw Error("Unable to find node on an unmounted component."); } -function addFiberToLanesMap(root, fiber, lanes) { - if (isDevToolsPresent) - for (root = root.pendingUpdatersLaneMap; 0 < lanes; ) { - var index$9 = 31 - clz32(lanes), - lane = 1 << index$9; - root[index$9].add(fiber); - lanes &= ~lane; +function findCurrentFiberUsingSlowPath(fiber) { + var alternate = fiber.alternate; + if (!alternate) { + alternate = getNearestMountedFiber(fiber); + if (null === alternate) + throw Error("Unable to find node on an unmounted component."); + return alternate !== fiber ? null : fiber; + } + for (var a = fiber, b = alternate; ; ) { + var parentA = a.return; + if (null === parentA) break; + var parentB = parentA.alternate; + if (null === parentB) { + b = parentA.return; + if (null !== b) { + a = b; + continue; + } + break; } -} -function movePendingFibersToMemoized(root, lanes) { - if (isDevToolsPresent) - for ( - var pendingUpdatersLaneMap = root.pendingUpdatersLaneMap, - memoizedUpdaters = root.memoizedUpdaters; - 0 < lanes; - - ) { - var index$10 = 31 - clz32(lanes); - root = 1 << index$10; - index$10 = pendingUpdatersLaneMap[index$10]; - 0 < index$10.size && - (index$10.forEach(function (fiber) { - var alternate = fiber.alternate; - (null !== alternate && memoizedUpdaters.has(alternate)) || - memoizedUpdaters.add(fiber); - }), - index$10.clear()); - lanes &= ~root; + if (parentA.child === parentB.child) { + for (parentB = parentA.child; parentB; ) { + if (parentB === a) return assertIsMounted(parentA), fiber; + if (parentB === b) return assertIsMounted(parentA), alternate; + parentB = parentB.sibling; + } + throw Error("Unable to find node on an unmounted component."); } -} -var currentUpdatePriority = 0; -function lanesToEventPriority(lanes) { - lanes &= -lanes; - return 2 < lanes - ? 8 < lanes - ? 0 !== (lanes & 268435455) - ? 32 - : 536870912 - : 8 - : 2; -} -var scheduleCallback$1 = Scheduler.unstable_scheduleCallback, - cancelCallback$1 = Scheduler.unstable_cancelCallback, - shouldYield = Scheduler.unstable_shouldYield, - requestPaint = Scheduler.unstable_requestPaint, - now$1 = Scheduler.unstable_now, - ImmediatePriority = Scheduler.unstable_ImmediatePriority, - UserBlockingPriority = Scheduler.unstable_UserBlockingPriority, - NormalPriority = Scheduler.unstable_NormalPriority, - IdlePriority = Scheduler.unstable_IdlePriority, - rendererID = null, - injectedHook = null, - injectedProfilingHooks = null, - isDevToolsPresent = "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__; -function onCommitRoot(root, eventPriority) { - if (injectedHook && "function" === typeof injectedHook.onCommitFiberRoot) - try { - var didError = 128 === (root.current.flags & 128); - switch (eventPriority) { - case 2: - var schedulerPriority = ImmediatePriority; - break; - case 8: - schedulerPriority = UserBlockingPriority; - break; - case 32: - schedulerPriority = NormalPriority; + if (a.return !== b.return) (a = parentA), (b = parentB); + else { + for (var didFindChild = !1, child$11 = parentA.child; child$11; ) { + if (child$11 === a) { + didFindChild = !0; + a = parentA; + b = parentB; break; - case 536870912: - schedulerPriority = IdlePriority; + } + if (child$11 === b) { + didFindChild = !0; + b = parentA; + a = parentB; break; - default: - schedulerPriority = NormalPriority; + } + child$11 = child$11.sibling; } - injectedHook.onCommitFiberRoot( - rendererID, - root, - schedulerPriority, - didError + if (!didFindChild) { + for (child$11 = parentB.child; child$11; ) { + if (child$11 === a) { + didFindChild = !0; + a = parentB; + b = parentA; + break; + } + if (child$11 === b) { + didFindChild = !0; + b = parentB; + a = parentA; + break; + } + child$11 = child$11.sibling; + } + if (!didFindChild) + throw Error( + "Child was not found in either parent set. This indicates a bug in React related to the return pointer. Please file an issue." + ); + } + } + if (a.alternate !== b) + throw Error( + "Return fibers should always be each others' alternates. This error is likely caused by a bug in React. Please file an issue." ); - } catch (err) {} + } + if (3 !== a.tag) + throw Error("Unable to find node on an unmounted component."); + return a.stateNode.current === a ? fiber : alternate; } -function injectProfilingHooks(profilingHooks) { - injectedProfilingHooks = profilingHooks; +function findCurrentHostFiber(parent) { + parent = findCurrentFiberUsingSlowPath(parent); + return null !== parent ? findCurrentHostFiberImpl(parent) : null; } -function getLaneLabelMap() { - for (var map = new Map(), lane = 1, index$11 = 0; 31 > index$11; index$11++) { - var label = getLabelForLane(lane); - map.set(lane, label); - lane *= 2; +function findCurrentHostFiberImpl(node) { + var tag = node.tag; + if (5 === tag || 26 === tag || 27 === tag || 6 === tag) return node; + for (node = node.child; null !== node; ) { + tag = findCurrentHostFiberImpl(node); + if (null !== tag) return tag; + node = node.sibling; } - return map; + return null; } -function markCommitStopped() { - null !== injectedProfilingHooks && - "function" === typeof injectedProfilingHooks.markCommitStopped && - injectedProfilingHooks.markCommitStopped(); +function describeComponentFrame(name, source, ownerName) { + source = ""; + ownerName && (source = " (created by " + ownerName + ")"); + return "\n in " + (name || "Unknown") + source; } -function markComponentRenderStarted(fiber) { - null !== injectedProfilingHooks && - "function" === typeof injectedProfilingHooks.markComponentRenderStarted && - injectedProfilingHooks.markComponentRenderStarted(fiber); +function describeFunctionComponentFrame(fn, source) { + return fn + ? describeComponentFrame(fn.displayName || fn.name || null, source, null) + : ""; } -function markComponentRenderStopped() { - null !== injectedProfilingHooks && - "function" === typeof injectedProfilingHooks.markComponentRenderStopped && - injectedProfilingHooks.markComponentRenderStopped(); +var hasOwnProperty = Object.prototype.hasOwnProperty, + valueStack = [], + index = -1; +function createCursor(defaultValue) { + return { current: defaultValue }; } -function markComponentLayoutEffectUnmountStarted(fiber) { - null !== injectedProfilingHooks && - "function" === - typeof injectedProfilingHooks.markComponentLayoutEffectUnmountStarted && - injectedProfilingHooks.markComponentLayoutEffectUnmountStarted(fiber); +function pop(cursor) { + 0 > index || + ((cursor.current = valueStack[index]), (valueStack[index] = null), index--); } -function markComponentLayoutEffectUnmountStopped() { - null !== injectedProfilingHooks && - "function" === - typeof injectedProfilingHooks.markComponentLayoutEffectUnmountStopped && - injectedProfilingHooks.markComponentLayoutEffectUnmountStopped(); +function push(cursor, value) { + index++; + valueStack[index] = cursor.current; + cursor.current = value; } -function markRenderStarted(lanes) { - null !== injectedProfilingHooks && - "function" === typeof injectedProfilingHooks.markRenderStarted && - injectedProfilingHooks.markRenderStarted(lanes); +var emptyContextObject = {}, + contextStackCursor$1 = createCursor(emptyContextObject), + didPerformWorkStackCursor = createCursor(!1), + previousContext = emptyContextObject; +function getMaskedContext(workInProgress, unmaskedContext) { + var contextTypes = workInProgress.type.contextTypes; + if (!contextTypes) return emptyContextObject; + var instance = workInProgress.stateNode; + if ( + instance && + instance.__reactInternalMemoizedUnmaskedChildContext === unmaskedContext + ) + return instance.__reactInternalMemoizedMaskedChildContext; + var context = {}, + key; + for (key in contextTypes) context[key] = unmaskedContext[key]; + instance && + ((workInProgress = workInProgress.stateNode), + (workInProgress.__reactInternalMemoizedUnmaskedChildContext = + unmaskedContext), + (workInProgress.__reactInternalMemoizedMaskedChildContext = context)); + return context; +} +function isContextProvider(type) { + type = type.childContextTypes; + return null !== type && void 0 !== type; +} +function popContext() { + pop(didPerformWorkStackCursor); + pop(contextStackCursor$1); +} +function pushTopLevelContextObject(fiber, context, didChange) { + if (contextStackCursor$1.current !== emptyContextObject) + throw Error( + "Unexpected context found on stack. This error is likely caused by a bug in React. Please file an issue." + ); + push(contextStackCursor$1, context); + push(didPerformWorkStackCursor, didChange); } -function markRenderStopped() { - null !== injectedProfilingHooks && - "function" === typeof injectedProfilingHooks.markRenderStopped && - injectedProfilingHooks.markRenderStopped(); +function processChildContext(fiber, type, parentContext) { + var instance = fiber.stateNode; + type = type.childContextTypes; + if ("function" !== typeof instance.getChildContext) return parentContext; + instance = instance.getChildContext(); + for (var contextKey in instance) + if (!(contextKey in type)) + throw Error( + (getComponentNameFromFiber(fiber) || "Unknown") + + '.getChildContext(): key "' + + contextKey + + '" is not defined in childContextTypes.' + ); + return assign({}, parentContext, instance); } -function markStateUpdateScheduled(fiber, lane) { - null !== injectedProfilingHooks && - "function" === typeof injectedProfilingHooks.markStateUpdateScheduled && - injectedProfilingHooks.markStateUpdateScheduled(fiber, lane); +function pushContextProvider(workInProgress) { + workInProgress = + ((workInProgress = workInProgress.stateNode) && + workInProgress.__reactInternalMemoizedMergedChildContext) || + emptyContextObject; + previousContext = contextStackCursor$1.current; + push(contextStackCursor$1, workInProgress); + push(didPerformWorkStackCursor, didPerformWorkStackCursor.current); + return !0; +} +function invalidateContextProvider(workInProgress, type, didChange) { + var instance = workInProgress.stateNode; + if (!instance) + throw Error( + "Expected to have an instance by this point. This error is likely caused by a bug in React. Please file an issue." + ); + didChange + ? ((workInProgress = processChildContext( + workInProgress, + type, + previousContext + )), + (instance.__reactInternalMemoizedMergedChildContext = workInProgress), + pop(didPerformWorkStackCursor), + pop(contextStackCursor$1), + push(contextStackCursor$1, workInProgress)) + : pop(didPerformWorkStackCursor); + push(didPerformWorkStackCursor, didChange); } function is(x, y) { return (x === y && (0 !== x || 1 / x === 1 / y)) || (x !== x && y !== y); @@ -2431,12 +2606,12 @@ function isThenableResolved(thenable) { thenable = thenable.status; return "fulfilled" === thenable || "rejected" === thenable; } -function noop$1() {} +function noop() {} function trackUsedThenable(thenableState, thenable, index) { index = thenableState[index]; void 0 === index ? thenableState.push(thenable) - : index !== thenable && (thenable.then(noop$1, noop$1), (thenable = index)); + : index !== thenable && (thenable.then(noop, noop), (thenable = index)); switch (thenable.status) { case "fulfilled": return thenable.value; @@ -2444,7 +2619,7 @@ function trackUsedThenable(thenableState, thenable, index) { throw thenable.reason; default: "string" === typeof thenable.status - ? thenable.then(noop$1, noop$1) + ? thenable.then(noop, noop) : ((thenableState = thenable), (thenableState.status = "pending"), thenableState.then( @@ -6035,7 +6210,7 @@ function completeWork(current, workInProgress, renderLanes) { recyclableInstance, workInProgress ); - recyclableInstance = new ReactFabricHostComponent( + recyclableInstance = ReactNativePrivateInterface.createPublicInstance( current, renderLanes, workInProgress @@ -9881,264 +10056,20 @@ function findNodeHandle(componentOrHandle) { null != componentOrHandle.canonical.nativeTag ) return componentOrHandle.canonical.nativeTag; - var nativeTag = componentOrHandle.__nativeTag; + var nativeTag = + ReactNativePrivateInterface.getNativeTagFromPublicInstance( + componentOrHandle + ); if (nativeTag) return nativeTag; componentOrHandle = findHostInstance(componentOrHandle); return null == componentOrHandle ? componentOrHandle : null != componentOrHandle._nativeTag ? componentOrHandle._nativeTag - : componentOrHandle.__nativeTag; -} -function getNodeFromInternalInstanceHandle(internalInstanceHandle) { - return ( - internalInstanceHandle && - internalInstanceHandle.stateNode && - internalInstanceHandle.stateNode.node - ); -} -var _nativeFabricUIManage$1 = nativeFabricUIManager, - fabricMeasure = _nativeFabricUIManage$1.measure, - fabricMeasureInWindow = _nativeFabricUIManage$1.measureInWindow, - fabricMeasureLayout = _nativeFabricUIManage$1.measureLayout, - _setNativeProps = _nativeFabricUIManage$1.setNativeProps, - fabricGetBoundingClientRect = _nativeFabricUIManage$1.getBoundingClientRect; -function noop() {} -var ReactFabricHostComponent = (function () { - function ReactFabricHostComponent(tag, viewConfig, internalInstanceHandle) { - this.__nativeTag = tag; - this._viewConfig = viewConfig; - this.__internalInstanceHandle = internalInstanceHandle; - } - var _proto = ReactFabricHostComponent.prototype; - _proto.blur = function () { - ReactNativePrivateInterface.TextInputState.blurTextInput(this); - }; - _proto.focus = function () { - ReactNativePrivateInterface.TextInputState.focusTextInput(this); - }; - _proto.measure = function (callback) { - var node = getNodeFromInternalInstanceHandle(this.__internalInstanceHandle); - null != node && fabricMeasure(node, callback); - }; - _proto.measureInWindow = function (callback) { - var node = getNodeFromInternalInstanceHandle(this.__internalInstanceHandle); - null != node && fabricMeasureInWindow(node, callback); - }; - _proto.measureLayout = function (relativeToNativeNode, onSuccess, onFail) { - if ( - "number" !== typeof relativeToNativeNode && - relativeToNativeNode instanceof ReactFabricHostComponent - ) { - var toStateNode = getNodeFromInternalInstanceHandle( - this.__internalInstanceHandle - ); - relativeToNativeNode = getNodeFromInternalInstanceHandle( - relativeToNativeNode.__internalInstanceHandle + : ReactNativePrivateInterface.getNativeTagFromPublicInstance( + componentOrHandle ); - null != toStateNode && - null != relativeToNativeNode && - fabricMeasureLayout( - toStateNode, - relativeToNativeNode, - null != onFail ? onFail : noop, - null != onSuccess ? onSuccess : noop - ); - } - }; - _proto.unstable_getBoundingClientRect = function () { - var node = getNodeFromInternalInstanceHandle(this.__internalInstanceHandle); - return null != node && (node = fabricGetBoundingClientRect(node)) - ? new DOMRect(node[0], node[1], node[2], node[3]) - : new DOMRect(0, 0, 0, 0); - }; - _proto.setNativeProps = function (nativeProps) { - nativeProps = diffProperties( - null, - emptyObject$1, - nativeProps, - this._viewConfig.validAttributes - ); - var node = getNodeFromInternalInstanceHandle(this.__internalInstanceHandle); - null != node && null != nativeProps && _setNativeProps(node, nativeProps); - }; - return ReactFabricHostComponent; -})(); -function batchedUpdatesImpl(fn, bookkeeping) { - return fn(bookkeeping); -} -var isInsideEventHandler = !1; -function batchedUpdates(fn, bookkeeping) { - if (isInsideEventHandler) return fn(bookkeeping); - isInsideEventHandler = !0; - try { - return batchedUpdatesImpl(fn, bookkeeping); - } finally { - isInsideEventHandler = !1; - } -} -var eventQueue = null; -function executeDispatchesAndReleaseTopLevel(e) { - if (e) { - var dispatchListeners = e._dispatchListeners, - dispatchInstances = e._dispatchInstances; - if (isArrayImpl(dispatchListeners)) - for ( - var i = 0; - i < dispatchListeners.length && !e.isPropagationStopped(); - i++ - ) - executeDispatch(e, dispatchListeners[i], dispatchInstances[i]); - else - dispatchListeners && - executeDispatch(e, dispatchListeners, dispatchInstances); - e._dispatchListeners = null; - e._dispatchInstances = null; - e.isPersistent() || e.constructor.release(e); - } -} -function dispatchEvent(target, topLevelType, nativeEvent) { - var eventTarget = null; - if (null != target) { - var stateNode = target.stateNode; - null != stateNode && (eventTarget = getPublicInstance(stateNode)); - } - batchedUpdates(function () { - var event = { eventName: topLevelType, nativeEvent: nativeEvent }; - ReactNativePrivateInterface.RawEventEmitter.emit(topLevelType, event); - ReactNativePrivateInterface.RawEventEmitter.emit("*", event); - event = eventTarget; - for ( - var events = null, legacyPlugins = plugins, i = 0; - i < legacyPlugins.length; - i++ - ) { - var possiblePlugin = legacyPlugins[i]; - possiblePlugin && - (possiblePlugin = possiblePlugin.extractEvents( - topLevelType, - target, - nativeEvent, - event - )) && - (events = accumulateInto(events, possiblePlugin)); - } - event = events; - null !== event && (eventQueue = accumulateInto(eventQueue, event)); - event = eventQueue; - eventQueue = null; - if (event) { - forEachAccumulated(event, executeDispatchesAndReleaseTopLevel); - if (eventQueue) - throw Error( - "processEventQueue(): Additional events were enqueued while processing an event queue. Support for this has not yet been implemented." - ); - if (hasRethrowError) - throw ( - ((event = rethrowError), - (hasRethrowError = !1), - (rethrowError = null), - event) - ); - } - }); -} -function shim() { - throw Error( - "The current renderer does not support hydration. This error is likely caused by a bug in React. Please file an issue." - ); -} -var _nativeFabricUIManage = nativeFabricUIManager, - createNode = _nativeFabricUIManage.createNode, - cloneNode = _nativeFabricUIManage.cloneNode, - cloneNodeWithNewChildren = _nativeFabricUIManage.cloneNodeWithNewChildren, - cloneNodeWithNewChildrenAndProps = - _nativeFabricUIManage.cloneNodeWithNewChildrenAndProps, - cloneNodeWithNewProps = _nativeFabricUIManage.cloneNodeWithNewProps, - createChildNodeSet = _nativeFabricUIManage.createChildSet, - appendChildNode = _nativeFabricUIManage.appendChild, - appendChildNodeToSet = _nativeFabricUIManage.appendChildToSet, - completeRoot = _nativeFabricUIManage.completeRoot, - registerEventHandler = _nativeFabricUIManage.registerEventHandler, - FabricDiscretePriority = _nativeFabricUIManage.unstable_DiscreteEventPriority, - fabricGetCurrentEventPriority = - _nativeFabricUIManage.unstable_getCurrentEventPriority, - getViewConfigForType = - ReactNativePrivateInterface.ReactNativeViewConfigRegistry.get, - nextReactTag = 2; -registerEventHandler && registerEventHandler(dispatchEvent); -function createTextInstance( - text, - rootContainerInstance, - hostContext, - internalInstanceHandle -) { - hostContext = nextReactTag; - nextReactTag += 2; - return { - node: createNode( - hostContext, - "RCTRawText", - rootContainerInstance, - { text: text }, - internalInstanceHandle - ) - }; -} -function getPublicInstance(instance) { - return null != instance.canonical && null != instance.canonical.publicInstance - ? instance.canonical.publicInstance - : null != instance._nativeTag - ? instance - : null; -} -var scheduleTimeout = setTimeout, - cancelTimeout = clearTimeout; -function cloneHiddenInstance(instance) { - var node = instance.node; - var JSCompiler_inline_result = diffProperties( - null, - emptyObject$1, - { style: { display: "none" } }, - instance.canonical.viewConfig.validAttributes - ); - return { - node: cloneNodeWithNewProps(node, JSCompiler_inline_result), - canonical: instance.canonical - }; } -function getInstanceFromNode(node) { - return null != node.canonical && null != node.canonical.internalInstanceHandle - ? node.canonical.internalInstanceHandle - : node; -} -getFiberCurrentPropsFromNode$1 = function (instance) { - return instance.canonical.currentProps; -}; -getInstanceFromNode$1 = getInstanceFromNode; -getNodeFromInstance$1 = function (fiber) { - fiber = getPublicInstance(fiber.stateNode); - if (null == fiber) throw Error("Could not find host instance from fiber"); - return fiber; -}; -ResponderEventPlugin.injection.injectGlobalResponderHandler({ - onChange: function (from, to, blockNativeResponder) { - from && - from.stateNode && - nativeFabricUIManager.setIsJSResponder( - from.stateNode.node, - !1, - blockNativeResponder || !1 - ); - to && - to.stateNode && - nativeFabricUIManager.setIsJSResponder( - to.stateNode.node, - !0, - blockNativeResponder || !1 - ); - } -}); var emptyObject = {}; function createHierarchy(fiberHierarchy) { return fiberHierarchy.map(function (fiber$jscomp$0) { @@ -10214,7 +10145,7 @@ var roots = new Map(), devToolsConfig$jscomp$inline_1128 = { findFiberByHostInstance: getInstanceFromNode, bundleType: 0, - version: "18.3.0-next-f77099b6f-20230322", + version: "18.3.0-next-9c54b29b4-20230322", rendererPackageName: "react-native-renderer", rendererConfig: { getInspectorDataForViewTag: function () { @@ -10269,7 +10200,7 @@ var roots = new Map(), scheduleRoot: null, setRefreshHandler: null, getCurrentFiber: null, - reconcilerVersion: "18.3.0-next-f77099b6f-20230322" + reconcilerVersion: "18.3.0-next-9c54b29b4-20230322" }); exports.createPortal = function (children, containerTag) { return createPortal$1( @@ -10281,12 +10212,11 @@ exports.createPortal = function (children, containerTag) { }; exports.dispatchCommand = function (handle, command, args) { var nativeTag = - null != handle._nativeTag ? handle._nativeTag : handle.__nativeTag; + null != handle._nativeTag + ? handle._nativeTag + : ReactNativePrivateInterface.getNativeTagFromPublicInstance(handle); null != nativeTag && - ((handle = - null == handle.__internalInstanceHandle - ? null - : getNodeFromInternalInstanceHandle(handle.__internalInstanceHandle)), + ((handle = ReactNativePrivateInterface.getNodeFromPublicInstance(handle)), null != handle ? nativeFabricUIManager.dispatchCommand(handle, command, args) : ReactNativePrivateInterface.UIManager.dispatchViewManagerCommand( @@ -10338,7 +10268,13 @@ exports.getInspectorDataForInstance = function (closestInstance) { source: source }; }; -exports.getNodeFromInternalInstanceHandle = getNodeFromInternalInstanceHandle; +exports.getNodeFromInternalInstanceHandle = function (internalInstanceHandle) { + return ( + internalInstanceHandle && + internalInstanceHandle.stateNode && + internalInstanceHandle.stateNode.node + ); +}; exports.getPublicInstanceFromInternalInstanceHandle = function ( internalInstanceHandle ) { @@ -10379,12 +10315,11 @@ exports.render = function (element, containerTag, callback, concurrentRoot) { }; exports.sendAccessibilityEvent = function (handle, eventType) { var nativeTag = - null != handle._nativeTag ? handle._nativeTag : handle.__nativeTag; + null != handle._nativeTag + ? handle._nativeTag + : ReactNativePrivateInterface.getNativeTagFromPublicInstance(handle); null != nativeTag && - ((handle = - null == handle.__internalInstanceHandle - ? null - : getNodeFromInternalInstanceHandle(handle.__internalInstanceHandle)), + ((handle = ReactNativePrivateInterface.getNodeFromPublicInstance(handle)), null != handle ? nativeFabricUIManager.sendAccessibilityEvent(handle, eventType) : ReactNativePrivateInterface.legacySendAccessibilityEvent( diff --git a/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactNativeRenderer-dev.fb.js b/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactNativeRenderer-dev.fb.js index c4548765d03ba..9212a39c8a686 100644 --- a/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactNativeRenderer-dev.fb.js +++ b/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactNativeRenderer-dev.fb.js @@ -27454,7 +27454,7 @@ function createFiberRoot( return root; } -var ReactVersion = "18.3.0-next-f77099b6f-20230322"; +var ReactVersion = "18.3.0-next-9c54b29b4-20230322"; function createPortal$1( children, @@ -28031,6 +28031,7 @@ function findHostInstance_DEPRECATED(componentOrHandle) { ); } // findHostInstance handles legacy vs. Fabric differences correctly // $FlowFixMe[incompatible-exact] we need to fix the definition of `HostComponent` to use NativeMethods as an interface, not as a type. + // $FlowFixMe[incompatible-return] return hostInstance; } @@ -28074,7 +28075,10 @@ function findNodeHandle(componentOrHandle) { return componentOrHandle.canonical.nativeTag; } // For compatibility with Fabric public instances - var nativeTag = getNativeTagFromPublicInstance(componentOrHandle); + var nativeTag = + ReactNativePrivateInterface.getNativeTagFromPublicInstance( + componentOrHandle + ); if (nativeTag) { return nativeTag; @@ -28091,20 +28095,21 @@ function findNodeHandle(componentOrHandle) { if (hostInstance == null) { return hostInstance; - } // $FlowFixMe[prop-missing] For compatibility with legacy renderer instances + } // $FlowFixMe[incompatible-type] For compatibility with legacy renderer instances if (hostInstance._nativeTag != null) { - // $FlowFixMe[incompatible-return] return hostInstance._nativeTag; } // $FlowFixMe[incompatible-call] Necessary when running Flow on the legacy renderer - return getNativeTagFromPublicInstance(hostInstance); + return ReactNativePrivateInterface.getNativeTagFromPublicInstance( + hostInstance + ); } function dispatchCommand(handle, command, args) { var nativeTag = handle._nativeTag != null ? handle._nativeTag - : getNativeTagFromPublicInstance(handle); + : ReactNativePrivateInterface.getNativeTagFromPublicInstance(handle); if (nativeTag == null) { { @@ -28117,7 +28122,7 @@ function dispatchCommand(handle, command, args) { return; } - var node = getNodeFromPublicInstance(handle); + var node = ReactNativePrivateInterface.getNodeFromPublicInstance(handle); if (node != null) { nativeFabricUIManager.dispatchCommand(node, command, args); @@ -28133,7 +28138,7 @@ function sendAccessibilityEvent(handle, eventType) { var nativeTag = handle._nativeTag != null ? handle._nativeTag - : getNativeTagFromPublicInstance(handle); + : ReactNativePrivateInterface.getNativeTagFromPublicInstance(handle); if (nativeTag == null) { { @@ -28146,7 +28151,7 @@ function sendAccessibilityEvent(handle, eventType) { return; } - var node = getNodeFromPublicInstance(handle); + var node = ReactNativePrivateInterface.getNodeFromPublicInstance(handle); if (node != null) { nativeFabricUIManager.sendAccessibilityEvent(node, eventType); @@ -28166,26 +28171,6 @@ function getNodeFromInternalInstanceHandle(internalInstanceHandle) { ); } -/** - * IMPORTANT: This module is used in Paper and Fabric. It needs to be defined - * outside of `ReactFabricPublicInstance` because that module requires - * `nativeFabricUIManager` to be defined in the global scope (which does not - * happen in Paper). - */ - -function getNativeTagFromPublicInstance(publicInstance) { - return publicInstance.__nativeTag; -} -function getNodeFromPublicInstance(publicInstance) { - if (publicInstance.__internalInstanceHandle == null) { - return null; - } - - return getNodeFromInternalInstanceHandle( - publicInstance.__internalInstanceHandle - ); -} - var emptyObject = {}; { @@ -28348,7 +28333,8 @@ function getInspectorDataForViewAtPoint( ) { { var closestInstance = null; - var fabricNode = getNodeFromPublicInstance(inspectedView); + var fabricNode = + ReactNativePrivateInterface.getNodeFromPublicInstance(inspectedView); if (fabricNode) { // For Fabric we can look up the instance handle directly and measure it. diff --git a/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactNativeRenderer-prod.fb.js b/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactNativeRenderer-prod.fb.js index fe60e0cfaf143..005930a268fe9 100644 --- a/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactNativeRenderer-prod.fb.js +++ b/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactNativeRenderer-prod.fb.js @@ -940,7 +940,7 @@ eventPluginOrder = Array.prototype.slice.call([ "ReactNativeBridgeEventPlugin" ]); recomputePluginOrdering(); -var injectedNamesToPlugins$jscomp$inline_248 = { +var injectedNamesToPlugins$jscomp$inline_247 = { ResponderEventPlugin: ResponderEventPlugin, ReactNativeBridgeEventPlugin: { eventTypes: {}, @@ -986,32 +986,32 @@ var injectedNamesToPlugins$jscomp$inline_248 = { } } }, - isOrderingDirty$jscomp$inline_249 = !1, - pluginName$jscomp$inline_250; -for (pluginName$jscomp$inline_250 in injectedNamesToPlugins$jscomp$inline_248) + isOrderingDirty$jscomp$inline_248 = !1, + pluginName$jscomp$inline_249; +for (pluginName$jscomp$inline_249 in injectedNamesToPlugins$jscomp$inline_247) if ( - injectedNamesToPlugins$jscomp$inline_248.hasOwnProperty( - pluginName$jscomp$inline_250 + injectedNamesToPlugins$jscomp$inline_247.hasOwnProperty( + pluginName$jscomp$inline_249 ) ) { - var pluginModule$jscomp$inline_251 = - injectedNamesToPlugins$jscomp$inline_248[pluginName$jscomp$inline_250]; + var pluginModule$jscomp$inline_250 = + injectedNamesToPlugins$jscomp$inline_247[pluginName$jscomp$inline_249]; if ( - !namesToPlugins.hasOwnProperty(pluginName$jscomp$inline_250) || - namesToPlugins[pluginName$jscomp$inline_250] !== - pluginModule$jscomp$inline_251 + !namesToPlugins.hasOwnProperty(pluginName$jscomp$inline_249) || + namesToPlugins[pluginName$jscomp$inline_249] !== + pluginModule$jscomp$inline_250 ) { - if (namesToPlugins[pluginName$jscomp$inline_250]) + if (namesToPlugins[pluginName$jscomp$inline_249]) throw Error( "EventPluginRegistry: Cannot inject two different event plugins using the same name, `" + - (pluginName$jscomp$inline_250 + "`.") + (pluginName$jscomp$inline_249 + "`.") ); - namesToPlugins[pluginName$jscomp$inline_250] = - pluginModule$jscomp$inline_251; - isOrderingDirty$jscomp$inline_249 = !0; + namesToPlugins[pluginName$jscomp$inline_249] = + pluginModule$jscomp$inline_250; + isOrderingDirty$jscomp$inline_248 = !0; } } -isOrderingDirty$jscomp$inline_249 && recomputePluginOrdering(); +isOrderingDirty$jscomp$inline_248 && recomputePluginOrdering(); var instanceCache = new Map(), instanceProps = new Map(); function getInstanceFromTag(tag) { @@ -9597,21 +9597,19 @@ function findNodeHandle(componentOrHandle) { null != componentOrHandle.canonical.nativeTag ) return componentOrHandle.canonical.nativeTag; - var nativeTag = componentOrHandle.__nativeTag; + var nativeTag = + ReactNativePrivateInterface.getNativeTagFromPublicInstance( + componentOrHandle + ); if (nativeTag) return nativeTag; componentOrHandle = findHostInstance(componentOrHandle); return null == componentOrHandle ? componentOrHandle : null != componentOrHandle._nativeTag ? componentOrHandle._nativeTag - : componentOrHandle.__nativeTag; -} -function getNodeFromPublicInstance(publicInstance) { - return null == publicInstance.__internalInstanceHandle - ? null - : (publicInstance = publicInstance.__internalInstanceHandle) && - publicInstance.stateNode && - publicInstance.stateNode.node; + : ReactNativePrivateInterface.getNativeTagFromPublicInstance( + componentOrHandle + ); } var emptyObject = {}; function createHierarchy(fiberHierarchy) { @@ -9692,10 +9690,10 @@ batchedUpdatesImpl = function (fn, a) { } }; var roots = new Map(), - devToolsConfig$jscomp$inline_1111 = { + devToolsConfig$jscomp$inline_1108 = { findFiberByHostInstance: getInstanceFromTag, bundleType: 0, - version: "18.3.0-next-f77099b6f-20230322", + version: "18.3.0-next-9c54b29b4-20230322", rendererPackageName: "react-native-renderer", rendererConfig: { getInspectorDataForViewTag: function () { @@ -9710,11 +9708,11 @@ var roots = new Map(), }.bind(null, findNodeHandle) } }; -var internals$jscomp$inline_1361 = { - bundleType: devToolsConfig$jscomp$inline_1111.bundleType, - version: devToolsConfig$jscomp$inline_1111.version, - rendererPackageName: devToolsConfig$jscomp$inline_1111.rendererPackageName, - rendererConfig: devToolsConfig$jscomp$inline_1111.rendererConfig, +var internals$jscomp$inline_1358 = { + bundleType: devToolsConfig$jscomp$inline_1108.bundleType, + version: devToolsConfig$jscomp$inline_1108.version, + rendererPackageName: devToolsConfig$jscomp$inline_1108.rendererPackageName, + rendererConfig: devToolsConfig$jscomp$inline_1108.rendererConfig, overrideHookState: null, overrideHookStateDeletePath: null, overrideHookStateRenamePath: null, @@ -9730,26 +9728,26 @@ var internals$jscomp$inline_1361 = { return null === fiber ? null : fiber.stateNode; }, findFiberByHostInstance: - devToolsConfig$jscomp$inline_1111.findFiberByHostInstance || + devToolsConfig$jscomp$inline_1108.findFiberByHostInstance || emptyFindFiberByHostInstance, findHostInstancesForRefresh: null, scheduleRefresh: null, scheduleRoot: null, setRefreshHandler: null, getCurrentFiber: null, - reconcilerVersion: "18.3.0-next-f77099b6f-20230322" + reconcilerVersion: "18.3.0-next-9c54b29b4-20230322" }; if ("undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__) { - var hook$jscomp$inline_1362 = __REACT_DEVTOOLS_GLOBAL_HOOK__; + var hook$jscomp$inline_1359 = __REACT_DEVTOOLS_GLOBAL_HOOK__; if ( - !hook$jscomp$inline_1362.isDisabled && - hook$jscomp$inline_1362.supportsFiber + !hook$jscomp$inline_1359.isDisabled && + hook$jscomp$inline_1359.supportsFiber ) try { - (rendererID = hook$jscomp$inline_1362.inject( - internals$jscomp$inline_1361 + (rendererID = hook$jscomp$inline_1359.inject( + internals$jscomp$inline_1358 )), - (injectedHook = hook$jscomp$inline_1362); + (injectedHook = hook$jscomp$inline_1359); } catch (err) {} } exports.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED = { @@ -9769,9 +9767,11 @@ exports.createPortal = function (children, containerTag) { }; exports.dispatchCommand = function (handle, command, args) { var nativeTag = - null != handle._nativeTag ? handle._nativeTag : handle.__nativeTag; + null != handle._nativeTag + ? handle._nativeTag + : ReactNativePrivateInterface.getNativeTagFromPublicInstance(handle); null != nativeTag && - ((handle = getNodeFromPublicInstance(handle)), + ((handle = ReactNativePrivateInterface.getNodeFromPublicInstance(handle)), null != handle ? nativeFabricUIManager.dispatchCommand(handle, command, args) : ReactNativePrivateInterface.UIManager.dispatchViewManagerCommand( @@ -9853,9 +9853,11 @@ exports.render = function (element, containerTag, callback) { }; exports.sendAccessibilityEvent = function (handle, eventType) { var nativeTag = - null != handle._nativeTag ? handle._nativeTag : handle.__nativeTag; + null != handle._nativeTag + ? handle._nativeTag + : ReactNativePrivateInterface.getNativeTagFromPublicInstance(handle); null != nativeTag && - ((handle = getNodeFromPublicInstance(handle)), + ((handle = ReactNativePrivateInterface.getNodeFromPublicInstance(handle)), null != handle ? nativeFabricUIManager.sendAccessibilityEvent(handle, eventType) : ReactNativePrivateInterface.legacySendAccessibilityEvent( diff --git a/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactNativeRenderer-profiling.fb.js b/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactNativeRenderer-profiling.fb.js index c64af1ced68cd..afc2bc3c3b13c 100644 --- a/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactNativeRenderer-profiling.fb.js +++ b/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactNativeRenderer-profiling.fb.js @@ -951,7 +951,7 @@ eventPluginOrder = Array.prototype.slice.call([ "ReactNativeBridgeEventPlugin" ]); recomputePluginOrdering(); -var injectedNamesToPlugins$jscomp$inline_264 = { +var injectedNamesToPlugins$jscomp$inline_263 = { ResponderEventPlugin: ResponderEventPlugin, ReactNativeBridgeEventPlugin: { eventTypes: {}, @@ -997,32 +997,32 @@ var injectedNamesToPlugins$jscomp$inline_264 = { } } }, - isOrderingDirty$jscomp$inline_265 = !1, - pluginName$jscomp$inline_266; -for (pluginName$jscomp$inline_266 in injectedNamesToPlugins$jscomp$inline_264) + isOrderingDirty$jscomp$inline_264 = !1, + pluginName$jscomp$inline_265; +for (pluginName$jscomp$inline_265 in injectedNamesToPlugins$jscomp$inline_263) if ( - injectedNamesToPlugins$jscomp$inline_264.hasOwnProperty( - pluginName$jscomp$inline_266 + injectedNamesToPlugins$jscomp$inline_263.hasOwnProperty( + pluginName$jscomp$inline_265 ) ) { - var pluginModule$jscomp$inline_267 = - injectedNamesToPlugins$jscomp$inline_264[pluginName$jscomp$inline_266]; + var pluginModule$jscomp$inline_266 = + injectedNamesToPlugins$jscomp$inline_263[pluginName$jscomp$inline_265]; if ( - !namesToPlugins.hasOwnProperty(pluginName$jscomp$inline_266) || - namesToPlugins[pluginName$jscomp$inline_266] !== - pluginModule$jscomp$inline_267 + !namesToPlugins.hasOwnProperty(pluginName$jscomp$inline_265) || + namesToPlugins[pluginName$jscomp$inline_265] !== + pluginModule$jscomp$inline_266 ) { - if (namesToPlugins[pluginName$jscomp$inline_266]) + if (namesToPlugins[pluginName$jscomp$inline_265]) throw Error( "EventPluginRegistry: Cannot inject two different event plugins using the same name, `" + - (pluginName$jscomp$inline_266 + "`.") + (pluginName$jscomp$inline_265 + "`.") ); - namesToPlugins[pluginName$jscomp$inline_266] = - pluginModule$jscomp$inline_267; - isOrderingDirty$jscomp$inline_265 = !0; + namesToPlugins[pluginName$jscomp$inline_265] = + pluginModule$jscomp$inline_266; + isOrderingDirty$jscomp$inline_264 = !0; } } -isOrderingDirty$jscomp$inline_265 && recomputePluginOrdering(); +isOrderingDirty$jscomp$inline_264 && recomputePluginOrdering(); var instanceCache = new Map(), instanceProps = new Map(); function getInstanceFromTag(tag) { @@ -10305,21 +10305,19 @@ function findNodeHandle(componentOrHandle) { null != componentOrHandle.canonical.nativeTag ) return componentOrHandle.canonical.nativeTag; - var nativeTag = componentOrHandle.__nativeTag; + var nativeTag = + ReactNativePrivateInterface.getNativeTagFromPublicInstance( + componentOrHandle + ); if (nativeTag) return nativeTag; componentOrHandle = findHostInstance(componentOrHandle); return null == componentOrHandle ? componentOrHandle : null != componentOrHandle._nativeTag ? componentOrHandle._nativeTag - : componentOrHandle.__nativeTag; -} -function getNodeFromPublicInstance(publicInstance) { - return null == publicInstance.__internalInstanceHandle - ? null - : (publicInstance = publicInstance.__internalInstanceHandle) && - publicInstance.stateNode && - publicInstance.stateNode.node; + : ReactNativePrivateInterface.getNativeTagFromPublicInstance( + componentOrHandle + ); } var emptyObject = {}; function createHierarchy(fiberHierarchy) { @@ -10400,10 +10398,10 @@ batchedUpdatesImpl = function (fn, a) { } }; var roots = new Map(), - devToolsConfig$jscomp$inline_1190 = { + devToolsConfig$jscomp$inline_1187 = { findFiberByHostInstance: getInstanceFromTag, bundleType: 0, - version: "18.3.0-next-f77099b6f-20230322", + version: "18.3.0-next-9c54b29b4-20230322", rendererPackageName: "react-native-renderer", rendererConfig: { getInspectorDataForViewTag: function () { @@ -10432,10 +10430,10 @@ var roots = new Map(), } catch (err) {} return hook.checkDCE ? !0 : !1; })({ - bundleType: devToolsConfig$jscomp$inline_1190.bundleType, - version: devToolsConfig$jscomp$inline_1190.version, - rendererPackageName: devToolsConfig$jscomp$inline_1190.rendererPackageName, - rendererConfig: devToolsConfig$jscomp$inline_1190.rendererConfig, + bundleType: devToolsConfig$jscomp$inline_1187.bundleType, + version: devToolsConfig$jscomp$inline_1187.version, + rendererPackageName: devToolsConfig$jscomp$inline_1187.rendererPackageName, + rendererConfig: devToolsConfig$jscomp$inline_1187.rendererConfig, overrideHookState: null, overrideHookStateDeletePath: null, overrideHookStateRenamePath: null, @@ -10451,14 +10449,14 @@ var roots = new Map(), return null === fiber ? null : fiber.stateNode; }, findFiberByHostInstance: - devToolsConfig$jscomp$inline_1190.findFiberByHostInstance || + devToolsConfig$jscomp$inline_1187.findFiberByHostInstance || emptyFindFiberByHostInstance, findHostInstancesForRefresh: null, scheduleRefresh: null, scheduleRoot: null, setRefreshHandler: null, getCurrentFiber: null, - reconcilerVersion: "18.3.0-next-f77099b6f-20230322" + reconcilerVersion: "18.3.0-next-9c54b29b4-20230322" }); exports.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED = { computeComponentStackForErrorReporting: function (reactTag) { @@ -10477,9 +10475,11 @@ exports.createPortal = function (children, containerTag) { }; exports.dispatchCommand = function (handle, command, args) { var nativeTag = - null != handle._nativeTag ? handle._nativeTag : handle.__nativeTag; + null != handle._nativeTag + ? handle._nativeTag + : ReactNativePrivateInterface.getNativeTagFromPublicInstance(handle); null != nativeTag && - ((handle = getNodeFromPublicInstance(handle)), + ((handle = ReactNativePrivateInterface.getNodeFromPublicInstance(handle)), null != handle ? nativeFabricUIManager.dispatchCommand(handle, command, args) : ReactNativePrivateInterface.UIManager.dispatchViewManagerCommand( @@ -10568,9 +10568,11 @@ exports.render = function (element, containerTag, callback) { }; exports.sendAccessibilityEvent = function (handle, eventType) { var nativeTag = - null != handle._nativeTag ? handle._nativeTag : handle.__nativeTag; + null != handle._nativeTag + ? handle._nativeTag + : ReactNativePrivateInterface.getNativeTagFromPublicInstance(handle); null != nativeTag && - ((handle = getNodeFromPublicInstance(handle)), + ((handle = ReactNativePrivateInterface.getNodeFromPublicInstance(handle)), null != handle ? nativeFabricUIManager.sendAccessibilityEvent(handle, eventType) : ReactNativePrivateInterface.legacySendAccessibilityEvent(