Add target: "es2022"

src/compiler/commandLineParser.ts

@@ -29,6 +29,7 @@ namespace ts {
         ["es2019", "lib.es2019.d.ts"],
         ["es2020", "lib.es2020.d.ts"],
         ["es2021", "lib.es2021.d.ts"],
+        ["es2022", "lib.es2022.d.ts"],
         ["esnext", "lib.esnext.d.ts"],
         // Host only
         ["dom", "lib.dom.d.ts"],
@@ -72,12 +73,16 @@ namespace ts {
         ["es2021.string", "lib.es2021.string.d.ts"],
         ["es2021.weakref", "lib.es2021.weakref.d.ts"],
         ["es2021.intl", "lib.es2021.intl.d.ts"],
-        ["esnext.array", "lib.es2019.array.d.ts"],
+        ["es2022.array", "lib.es2022.array.d.ts"],
+        ["es2022.error", "lib.es2022.error.d.ts"],
+        ["es2022.object", "lib.es2022.object.d.ts"],
+        ["es2022.string", "lib.es2022.string.d.ts"],
+        ["esnext.array", "lib.es2022.array.d.ts"],
         ["esnext.symbol", "lib.es2019.symbol.d.ts"],
         ["esnext.asynciterable", "lib.es2018.asynciterable.d.ts"],
         ["esnext.intl", "lib.esnext.intl.d.ts"],
         ["esnext.bigint", "lib.es2020.bigint.d.ts"],
-        ["esnext.string", "lib.es2021.string.d.ts"],
+        ["esnext.string", "lib.es2022.string.d.ts"],
         ["esnext.promise", "lib.es2021.promise.d.ts"],
         ["esnext.weakref", "lib.es2021.weakref.d.ts"]
     ];
@@ -314,6 +319,7 @@ namespace ts {
             es2019: ScriptTarget.ES2019,
             es2020: ScriptTarget.ES2020,
             es2021: ScriptTarget.ES2021,
+            es2022: ScriptTarget.ES2022,
             esnext: ScriptTarget.ESNext,
         })),
         affectsSourceFile: true,

src/compiler/types.ts

@@ -6256,6 +6256,7 @@ namespace ts {
         ES2019 = 6,
         ES2020 = 7,
         ES2021 = 8,
+        ES2022 = 9,
         ESNext = 99,
         JSON = 100,
         Latest = ESNext,
@@ -6713,15 +6714,16 @@ namespace ts {
         ContainsTypeScript = 1 << 0,
         ContainsJsx = 1 << 1,
         ContainsESNext = 1 << 2,
-        ContainsES2021 = 1 << 3,
-        ContainsES2020 = 1 << 4,
-        ContainsES2019 = 1 << 5,
-        ContainsES2018 = 1 << 6,
-        ContainsES2017 = 1 << 7,
-        ContainsES2016 = 1 << 8,
-        ContainsES2015 = 1 << 9,
-        ContainsGenerator = 1 << 10,
-        ContainsDestructuringAssignment = 1 << 11,
+        ContainsES2022 = 1 << 3,
+        ContainsES2021 = 1 << 4,
+        ContainsES2020 = 1 << 5,
+        ContainsES2019 = 1 << 6,
+        ContainsES2018 = 1 << 7,
+        ContainsES2017 = 1 << 8,
+        ContainsES2016 = 1 << 9,
+        ContainsES2015 = 1 << 10,
+        ContainsGenerator = 1 << 11,
+        ContainsDestructuringAssignment = 1 << 12,
 
         // Markers
         // - Flags used to indicate that a subtree contains a specific transformation.
@@ -6750,6 +6752,7 @@ namespace ts {
         AssertTypeScript = ContainsTypeScript,
         AssertJsx = ContainsJsx,
         AssertESNext = ContainsESNext,
+        AssertES2022 = ContainsES2022,
         AssertES2021 = ContainsES2021,
         AssertES2020 = ContainsES2020,
         AssertES2019 = ContainsES2019,

src/compiler/utilities.ts

@@ -606,6 +606,7 @@ namespace ts {
                 AsyncIterableIterator: emptyArray,
                 AsyncGenerator: emptyArray,
                 AsyncGeneratorFunction: emptyArray,
+                NumberFormat: ["formatToParts"]
             },
             es2019: {
                 Array: ["flat", "flatMap"],
@@ -627,8 +628,21 @@ namespace ts {
                 PromiseConstructor: ["any"],
                 String: ["replaceAll"]
             },
-            esnext: {
-                NumberFormat: ["formatToParts"]
+            es2022: {
+                Array: ["at"],
+                String: ["at"],
+                Int8Array: ["at"],
+                Uint8Array: ["at"],
+                Uint8ClampedArray: ["at"],
+                Int16Array: ["at"],
+                Uint16Array: ["at"],
+                Int32Array: ["at"],
+                Uint32Array: ["at"],
+                Float32Array: ["at"],
+                Float64Array: ["at"],
+                BigInt64Array: ["at"],
+                BigUint64Array: ["at"],
+                ObjectConstructor: ["hasOwn"]
             }
         };
     }

src/compiler/utilitiesPublic.ts

@@ -14,6 +14,8 @@ namespace ts {
         switch (getEmitScriptTarget(options)) {
             case ScriptTarget.ESNext:
                 return "lib.esnext.full.d.ts";
+            case ScriptTarget.ES2022:
+                return "lib.es2022.full.d.ts";
             case ScriptTarget.ES2021:
                 return "lib.es2021.full.d.ts";
             case ScriptTarget.ES2020:

src/lib/es2022.array.d.ts

@@ -0,0 +1,103 @@
+interface Array<T> {
+    /**
+     * Returns the item located at the specified index.
+     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     */
+    at(index: number): T | undefined;
+}
+
+interface ReadonlyArray<T> {
+    /**
+     * Returns the item located at the specified index.
+     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     */
+    at(index: number): T | undefined;
+}
+
+interface Int8Array {
+    /**
+     * Returns the item located at the specified index.
+     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     */
+    at(index: number): number | undefined;
+}
+
+interface Uint8Array {
+    /**
+     * Returns the item located at the specified index.
+     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     */
+    at(index: number): number | undefined;
+}
+
+interface Uint8ClampedArray {
+    /**
+     * Returns the item located at the specified index.
+     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     */
+    at(index: number): number | undefined;
+}
+
+interface Int16Array {
+    /**
+     * Returns the item located at the specified index.
+     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     */
+    at(index: number): number | undefined;
+}
+
+interface Uint16Array {
+    /**
+     * Returns the item located at the specified index.
+     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     */
+    at(index: number): number | undefined;
+}
+
+interface Int32Array {
+    /**
+     * Returns the item located at the specified index.
+     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     */
+    at(index: number): number | undefined;
+}
+
+interface Uint32Array {
+    /**
+     * Returns the item located at the specified index.
+     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     */
+    at(index: number): number | undefined;
+}
+
+interface Float32Array {
+    /**
+     * Returns the item located at the specified index.
+     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     */
+    at(index: number): number | undefined;
+}
+
+interface Float64Array {
+    /**
+     * Returns the item located at the specified index.
+     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     */
+    at(index: number): number | undefined;
+}
+
+interface BigInt64Array {
+    /**
+     * Returns the item located at the specified index.
+     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     */
+    at(index: number): number | undefined;
+}
+
+interface BigUint64Array {
+    /**
+     * Returns the item located at the specified index.
+     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     */
+    at(index: number): number | undefined;
+}

src/lib/es2022.d.ts

@@ -0,0 +1,5 @@
+/// <reference lib="es2021" />
+/// <reference lib="es2022.array" />
+/// <reference lib="es2022.error" />
+/// <reference lib="es2022.object" />
+/// <reference lib="es2022.string" />

src/lib/es2022.error.d.ts

@@ -0,0 +1,8 @@
+interface ErrorOptions {
+  cause?: Error;
+}
+
+interface ErrorConstructor {
+  new(message?: string, options?: ErrorOptions): Error;
+  (message?: string, options?: ErrorOptions): Error;
+}

src/lib/es2022.full.d.ts

@@ -0,0 +1,5 @@
+/// <reference lib="es2022" />
+/// <reference lib="dom" />
+/// <reference lib="webworker.importscripts" />
+/// <reference lib="scripthost" />
+/// <reference lib="dom.iterable" />

src/lib/es2022.object.d.ts

@@ -0,0 +1,8 @@
+interface Object {
+    /**
+     * Determines whether an object has a property with the specified name.
+     * @param o An object.
+     * @param v A property name.
+     */
+    hasOwn(o: object, v: PropertyKey): boolean;
+}

src/lib/es2022.string.d.ts

@@ -0,0 +1,7 @@
+interface String {
+    /**
+     * Returns a new String consisting of the single UTF-16 code unit located at the specified index.
+     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     */
+    at(index: number): string | undefined;
+}

src/lib/esnext.d.ts

@@ -1,2 +1,2 @@
-/// <reference lib="es2021" />
+/// <reference lib="es2022" />
 /// <reference lib="esnext.intl" />

src/lib/libs.json

@@ -9,6 +9,7 @@
         "es2019",
         "es2020",
         "es2021",
+        "es2022",
         "esnext",
         // Host only
         "dom.generated",
@@ -52,6 +53,10 @@
         "es2021.promise",
         "es2021.weakref",
         "es2021.intl",
+        "es2022.array",
+        "es2022.error",
+        "es2022.object",
+        "es2022.string",
         "esnext.intl",
         // Default libraries
         "es5.full",
@@ -62,6 +67,7 @@
         "es2019.full",
         "es2020.full",
         "es2021.full",
+        "es2022.full",
         "esnext.full"
     ],
     "paths": {

src/server/protocol.ts

@@ -3509,6 +3509,7 @@ namespace ts.server.protocol {
         ES2019 = "ES2019",
         ES2020 = "ES2020",
         ES2021 = "ES2021",
+        ES2022 = "ES2022",
         ESNext = "ESNext"
     }
 

src/testRunner/unittests/config/commandLineParsing.ts

@@ -211,7 +211,7 @@ namespace ts {
                         start: undefined,
                         length: undefined,
                     }, {
-                        messageText: "Argument for '--target' option must be: 'es3', 'es5', 'es6', 'es2015', 'es2016', 'es2017', 'es2018', 'es2019', 'es2020', 'es2021', 'esnext'.",
+                        messageText: "Argument for '--target' option must be: 'es3', 'es5', 'es6', 'es2015', 'es2016', 'es2017', 'es2018', 'es2019', 'es2020', 'es2021', 'es2022', 'esnext'.",
                         category: Diagnostics.Argument_for_0_option_must_be_Colon_1.category,
                         code: Diagnostics.Argument_for_0_option_must_be_Colon_1.code,
 

tests/baselines/reference/api/tsserverlibrary.d.ts

@@ -3078,6 +3078,7 @@ declare namespace ts {
         ES2019 = 6,
         ES2020 = 7,
         ES2021 = 8,
+        ES2022 = 9,
         ESNext = 99,
         JSON = 100,
         Latest = 99
@@ -9658,6 +9659,7 @@ declare namespace ts.server.protocol {
         ES2019 = "ES2019",
         ES2020 = "ES2020",
         ES2021 = "ES2021",
+        ES2022 = "ES2022",
         ESNext = "ESNext"
     }
     enum ClassificationType {

tests/baselines/reference/api/typescript.d.ts

@@ -3078,6 +3078,7 @@ declare namespace ts {
         ES2019 = 6,
         ES2020 = 7,
         ES2021 = 8,
+        ES2022 = 9,
         ESNext = 99,
         JSON = 100,
         Latest = 99

tests/baselines/reference/callChainWithSuper(target=es2022).js

@@ -0,0 +1,18 @@
+//// [callChainWithSuper.ts]
+// GH#34952
+class Base { method?() {} }
+class Derived extends Base {
+    method1() { return super.method?.(); }
+    method2() { return super["method"]?.(); }
+}
+
+//// [callChainWithSuper.js]
+"use strict";
+// GH#34952
+class Base {
+    method() { }
+}
+class Derived extends Base {
+    method1() { return super.method?.(); }
+    method2() { return super["method"]?.(); }
+}

tests/baselines/reference/callWithSpread4.symbols

@@ -30,7 +30,7 @@ declare const pli: {
 
     (streams: ReadonlyArray<R | W | RW>): Promise<void>;
 >streams : Symbol(streams, Decl(callWithSpread4.ts, 5, 5))
->ReadonlyArray : Symbol(ReadonlyArray, Decl(lib.es5.d.ts, --, --), Decl(lib.es2015.core.d.ts, --, --), Decl(lib.es2015.iterable.d.ts, --, --), Decl(lib.es2016.array.include.d.ts, --, --), Decl(lib.es2019.array.d.ts, --, --))
+>ReadonlyArray : Symbol(ReadonlyArray, Decl(lib.es5.d.ts, --, --), Decl(lib.es2015.core.d.ts, --, --), Decl(lib.es2015.iterable.d.ts, --, --), Decl(lib.es2016.array.include.d.ts, --, --), Decl(lib.es2019.array.d.ts, --, --) ... and 1 more)
 >R : Symbol(R, Decl(callWithSpread4.ts, 0, 0))
 >W : Symbol(W, Decl(callWithSpread4.ts, 0, 22))
 >RW : Symbol(RW, Decl(callWithSpread4.ts, 1, 22))
@@ -43,7 +43,7 @@ declare const pli: {
 >RW : Symbol(RW, Decl(callWithSpread4.ts, 1, 22))
 >W : Symbol(W, Decl(callWithSpread4.ts, 0, 22))
 >streams : Symbol(streams, Decl(callWithSpread4.ts, 6, 23))
->Array : Symbol(Array, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --), Decl(lib.es2015.core.d.ts, --, --), Decl(lib.es2015.iterable.d.ts, --, --), Decl(lib.es2015.symbol.wellknown.d.ts, --, --) ... and 2 more)
+>Array : Symbol(Array, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --), Decl(lib.es2015.core.d.ts, --, --), Decl(lib.es2015.iterable.d.ts, --, --), Decl(lib.es2015.symbol.wellknown.d.ts, --, --) ... and 3 more)
 >RW : Symbol(RW, Decl(callWithSpread4.ts, 1, 22))
 >W : Symbol(W, Decl(callWithSpread4.ts, 0, 22))
 >Promise : Symbol(Promise, Decl(lib.es5.d.ts, --, --), Decl(lib.es2015.iterable.d.ts, --, --), Decl(lib.es2015.promise.d.ts, --, --), Decl(lib.es2015.symbol.wellknown.d.ts, --, --), Decl(lib.es2018.promise.d.ts, --, --))

tests/baselines/reference/doYouNeedToChangeYourTargetLibraryES2016Plus.errors.txt

@@ -16,7 +16,7 @@ tests/cases/compiler/doYouNeedToChangeYourTargetLibraryES2016Plus.ts(20,27): err
 tests/cases/compiler/doYouNeedToChangeYourTargetLibraryES2016Plus.ts(21,35): error TS2583: Cannot find name 'AsyncGeneratorFunction'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2018' or later.
 tests/cases/compiler/doYouNeedToChangeYourTargetLibraryES2016Plus.ts(22,26): error TS2583: Cannot find name 'AsyncIterable'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2018' or later.
 tests/cases/compiler/doYouNeedToChangeYourTargetLibraryES2016Plus.ts(23,34): error TS2583: Cannot find name 'AsyncIterableIterator'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2018' or later.
-tests/cases/compiler/doYouNeedToChangeYourTargetLibraryES2016Plus.ts(24,70): error TS2550: Property 'formatToParts' does not exist on type 'NumberFormat'. Do you need to change your target library? Try changing the 'lib' compiler option to 'esnext' or later.
+tests/cases/compiler/doYouNeedToChangeYourTargetLibraryES2016Plus.ts(24,70): error TS2550: Property 'formatToParts' does not exist on type 'NumberFormat'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2018' or later.
 tests/cases/compiler/doYouNeedToChangeYourTargetLibraryES2016Plus.ts(27,26): error TS2550: Property 'flat' does not exist on type 'undefined[]'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2019' or later.
 tests/cases/compiler/doYouNeedToChangeYourTargetLibraryES2016Plus.ts(28,29): error TS2550: Property 'flatMap' does not exist on type 'undefined[]'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2019' or later.
 tests/cases/compiler/doYouNeedToChangeYourTargetLibraryES2016Plus.ts(29,49): error TS2550: Property 'fromEntries' does not exist on type 'ObjectConstructor'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2019' or later.
@@ -95,7 +95,7 @@ tests/cases/compiler/doYouNeedToChangeYourTargetLibraryES2016Plus.ts(44,33): err
 !!! error TS2583: Cannot find name 'AsyncIterableIterator'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2018' or later.
     const testNumberFormatFormatToParts = new Intl.NumberFormat("en-US").formatToParts();
                                                                          ~~~~~~~~~~~~~
-!!! error TS2550: Property 'formatToParts' does not exist on type 'NumberFormat'. Do you need to change your target library? Try changing the 'lib' compiler option to 'esnext' or later.
+!!! error TS2550: Property 'formatToParts' does not exist on type 'NumberFormat'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2018' or later.
 
     // es2019
     const testArrayFlat = [].flat();

tests/baselines/reference/errorCause(target=es2021).errors.txt

@@ -0,0 +1,8 @@
+tests/cases/compiler/errorCause.ts(1,18): error TS2554: Expected 0-1 arguments, but got 2.
+
+
+==== tests/cases/compiler/errorCause.ts (1 errors) ====
+    new Error("foo", { cause: new Error("bar") });
+                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS2554: Expected 0-1 arguments, but got 2.
+