Queue discrete events in microtask

facebook · Jan 27, 2021 · bca5c49 · bca5c49
1 parent 0711bb0
commit bca5c49
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Showing 5 changed files with 36 additions and 0 deletions.
diff --git a/packages/react-art/src/ReactARTHostConfig.js b/packages/react-art/src/ReactARTHostConfig.js
@@ -329,6 +329,8 @@ export function getChildHostContext() {
 
 export const scheduleTimeout = setTimeout;
 export const cancelTimeout = clearTimeout;
+// TODO: Implement for ART.
+export const queueMicrotask = undefined;
 export const noTimeout = -1;
 
 export function shouldSetTextContent(type, props) {

diff --git a/packages/react-dom/src/client/ReactDOMHostConfig.js b/packages/react-dom/src/client/ReactDOMHostConfig.js
@@ -384,6 +384,21 @@ export const scheduleTimeout: any =
 export const cancelTimeout: any =
   typeof clearTimeout === 'function' ? clearTimeout : (undefined: any);
 export const noTimeout = -1;
+export const queueMicrotask: (Function => void) | undefined =
+  typeof queueMicrotask === 'function'
+    ? queueMicrotask
+    : typeof Promise !== 'undefined'
+    ? callback =>
+        Promise.resolve(null)
+          .then(callback)
+          .catch(handleErrorInNextTick)
+    : scheduleTimeout;
+
+function handleErrorInNextTick(error) {
+  setTimeout(() => {
+    throw error;
+  });
+}
 
 // -------------------
 //     Mutation

diff --git a/packages/react-native-renderer/src/ReactFabricHostConfig.js b/packages/react-native-renderer/src/ReactFabricHostConfig.js
@@ -347,6 +347,8 @@ export const warnsIfNotActing = false;
 
 export const scheduleTimeout = setTimeout;
 export const cancelTimeout = clearTimeout;
+// TODO: implement for React Native.
+export const queueMicrotask = undefined;
 export const noTimeout = -1;
 
 // -------------------

diff --git a/packages/react-native-renderer/src/ReactNativeHostConfig.js b/packages/react-native-renderer/src/ReactNativeHostConfig.js
@@ -246,6 +246,8 @@ export const warnsIfNotActing = true;
 
 export const scheduleTimeout = setTimeout;
 export const cancelTimeout = clearTimeout;
+// TODO: Implement for React Native.
+export const queueMicrotask = undefined;
 export const noTimeout = -1;
 
 export function shouldSetTextContent(type: string, props: Props): boolean {

diff --git a/packages/react-test-renderer/src/ReactTestHostConfig.js b/packages/react-test-renderer/src/ReactTestHostConfig.js
@@ -220,6 +220,21 @@ export const warnsIfNotActing = true;
 
 export const scheduleTimeout = setTimeout;
 export const cancelTimeout = clearTimeout;
+export const queueMicrotask =
+  typeof queueMicrotask === 'function'
+    ? queueMicrotask
+    : typeof Promise !== 'undefined'
+    ? callback =>
+        Promise.resolve(null)
+          .then(callback)
+          .catch(handleErrorInNextTick)
+    : scheduleTimeout;
+
+function handleErrorInNextTick(error) {
+  setTimeout(() => {
+    throw error;
+  });
+}
 export const noTimeout = -1;
 
 // -------------------