Fix broken relay-experimental imports; Add Record: RelayModernRecord …

…to relay-runtime API (#2847)

Summary:
Suggested fix for #2845
Pull Request resolved: #2847

Test Plan:
- jest/flow
- sync to www, test comet there
- build our packages in local copy of repo, verified that ReactRelayContext was properly added to the `react-relay` package.

{F209078094}

Reviewed By: kassens

Differential Revision: D17366489

Pulled By: jstejada

fbshipit-source-id: 3f1d79af296293d1f38201199c220ffaf1d496f0

gulpfile.js

@@ -128,6 +128,7 @@ const builds = [
     package: 'react-relay',
     exports: {
       index: 'index.js',
+      ReactRelayContext: 'ReactRelayContext.js',
     },
     bundles: [
       {

packages/relay-experimental/useRefetchableFragmentNode.js

@@ -530,7 +530,7 @@ if (__DEV__) {
       fragmentRefPathInResponse: $ReadOnlyArray<string | number>,
       environment: IEnvironment,
     ): ?DebugIDandTypename {
-      const RelayModernRecord = require('relay-runtime/store/RelayModernRecord');
+      const {Record} = require('relay-runtime');
       const id = memoRefetchVariables?.id;
       if (
         fragmentRefPathInResponse.length !== 1 ||
@@ -541,7 +541,7 @@ if (__DEV__) {
       }
       const recordSource = environment.getStore().getSource();
       const record = recordSource.get(id);
-      const typename = record && RelayModernRecord.getType(record);
+      const typename = record && Record.getType(record);
       if (typename == null) {
         return null;
       }
@@ -557,13 +557,13 @@ if (__DEV__) {
       fragmentNode: ReaderFragment,
       componentDisplayName: string,
     ): void {
-      const RelayModernRecord = require('relay-runtime/store/RelayModernRecord');
+      const {Record} = require('relay-runtime');
       if (!previousIDAndType) {
         return;
       }
       const recordSource = environment.getStore().getSource();
       const record = recordSource.get(previousIDAndType.id);
-      const typename = record && RelayModernRecord.getType(record);
+      const typename = record && Record.getType(record);
       if (typename !== previousIDAndType.typename) {
         warning(
           false,
@@ -588,7 +588,7 @@ if (__DEV__) {
       if (previousIDAndTypename == null) {
         return;
       }
-      const {ID_KEY} = require('relay-runtime/store/RelayStoreUtils');
+      const {ID_KEY} = require('relay-runtime');
       // $FlowExpectedError
       const resultID = refetchedFragmentRef[ID_KEY];
       if (resultID != null && resultID !== previousIDAndTypename.id) {

packages/relay-runtime/index.js

@@ -24,6 +24,7 @@ const RelayModernEnvironment = require('./store/RelayModernEnvironment');
 const RelayModernFragmentOwner = require('./store/RelayModernFragmentOwner');
 const RelayModernGraphQLTag = require('./query/RelayModernGraphQLTag');
 const RelayModernOperationDescriptor = require('./store/RelayModernOperationDescriptor');
+const RelayModernRecord = require('./store/RelayModernRecord');
 const RelayModernSelector = require('./store/RelayModernSelector');
 const RelayModernStore = require('./store/RelayModernStore');
 const RelayNetwork = require('./network/RelayNetwork');
@@ -221,6 +222,7 @@ module.exports = {
   Observable: RelayObservable,
   QueryResponseCache: RelayQueryResponseCache,
   RecordSource: RelayRecordSource,
+  Record: RelayModernRecord,
   Store: RelayModernStore,
 
   areEqualSelectors: RelayModernSelector.areEqualSelectors,