Add feature flag to use microtasks in the React Native Fabric renderer

facebook · Sep 11, 2023 · 966d270 · 966d270
1 parent 41f0e9d
commit 966d270
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Showing 3 changed files with 10 additions and 2 deletions.
diff --git a/packages/react-native-renderer/src/ReactFiberConfigFabric.js b/packages/react-native-renderer/src/ReactFiberConfigFabric.js
@@ -48,7 +48,7 @@ const {
  unstable_getCurrentEventPriority: fabricGetCurrentEventPriority,
 } = nativeFabricUIManager;
 
-import {diffInCommitPhase} from 'shared/ReactFeatureFlags';
+import {diffInCommitPhase, useMicrotasksForSchedulingInNative} from 'shared/ReactFeatureFlags';
 
 const {get: getViewConfigForType} = ReactNativeViewConfigRegistry;
 
@@ -122,7 +122,6 @@ export * from 'react-reconciler/src/ReactFiberConfigWithNoMutation';
 export * from 'react-reconciler/src/ReactFiberConfigWithNoHydration';
 export * from 'react-reconciler/src/ReactFiberConfigWithNoScopes';
 export * from 'react-reconciler/src/ReactFiberConfigWithNoTestSelectors';
-export * from 'react-reconciler/src/ReactFiberConfigWithNoMicrotasks';
 export * from 'react-reconciler/src/ReactFiberConfigWithNoResources';
 export * from 'react-reconciler/src/ReactFiberConfigWithNoSingletons';
 
@@ -499,3 +498,9 @@ export function waitForCommitToBeReady(): null {
 }
 
 export const NotPendingTransition: TransitionStatus = null;
+
+// -------------------
+// Microtasks
+// -------------------
+export const supportsMicrotasks = useMicrotasksForSchedulingInNative;
+export const scheduleMicrotask: any = typeof queueMicrotask === 'function' ? queueMicrotask : scheduleTimeout;
diff --git a/packages/shared/ReactFeatureFlags.js b/packages/shared/ReactFeatureFlags.js
@@ -125,6 +125,8 @@ export const enableAsyncActions = __EXPERIMENTAL__;
 
 export const alwaysThrottleRetries = true;
 
+export const useMicrotasksForSchedulingInNative = false;
+
 // -----------------------------------------------------------------------------
 // Chopping Block
 //

diff --git a/packages/shared/forks/ReactFeatureFlags.native-fb.js b/packages/shared/forks/ReactFeatureFlags.native-fb.js
@@ -21,6 +21,7 @@ export const {
  enableUseRefAccessWarning,
  enableDeferRootSchedulingToMicrotask,
  alwaysThrottleRetries,
+ useMicrotasksForSchedulingInNative,
 } = dynamicFlags;
 
 // The rest of the flags are static for better dead code elimination.