[Tracks] Annotate devtools.performanceIssue for Cascading Updates in DEV

packages/react-reconciler/src/ReactFiberPerformanceTrack.js

@@ -36,6 +36,7 @@ import {
 import {
   enableProfilerTimer,
   enableGestureTransition,
+  enablePerformanceIssueReporting,
 } from 'shared/ReactFeatureFlags';
 
 const supportsUserTiming =
@@ -203,6 +204,15 @@ const reusableComponentOptions: PerformanceMeasureOptions = {
 
 const reusableChangedPropsEntry = ['Changed Props', ''];
 
+const reusableCascadingUpdateIssue = {
+  name: 'React: Cascading Update',
+  severity: 'warning',
+  description:
+    'A cascading update is an update that is triggered during an ongoing render. This can lead to performance issues.',
+  learnMoreUrl:
+    'https://react.dev/reference/dev-tools/react-performance-tracks#cascading-updates',
+};
+
 const DEEP_EQUALITY_WARNING =
   'This component received deeply equal props. It might benefit from useMemo or the React Compiler in its owner.';
 
@@ -761,6 +771,11 @@ export function logBlockingStart(
             },
           },
         };
+        if (enablePerformanceIssueReporting && isSpawnedUpdate) {
+          // $FlowFixMe[prop-missing] - detail is untyped
+          measureOptions.detail.devtools.performanceIssue =
+            reusableCascadingUpdateIssue;
+        }
 
         if (debugTask) {
           debugTask.run(

packages/shared/ReactFeatureFlags.js

@@ -231,6 +231,11 @@ export const enableProfilerTimer = __PROFILE__;
 // All calls should also be gated on enableProfilerTimer.
 export const enableComponentPerformanceTrack: boolean = true;
 
+// Enables annotating of React performance track events with `performanceIssue`
+// metadata, to more prominently highlight performance issues to users
+// (initially, an experimental feature in React Native).
+export const enablePerformanceIssueReporting: boolean = false;
+
 // Adds user timing marks for e.g. state updates, suspense, and work loop stuff,
 // for an experimental timeline tool.
 export const enableSchedulingProfiler: boolean =

packages/shared/forks/ReactFeatureFlags.native-fb.js

@@ -82,6 +82,8 @@ export const enableDefaultTransitionIndicator: boolean = true;
 export const ownerStackLimit = 1e4;
 export const enableComponentPerformanceTrack: boolean =
   __PROFILE__ && dynamicFlags.enableComponentPerformanceTrack;
+export const enablePerformanceIssueReporting: boolean =
+  enableComponentPerformanceTrack;
 
 // Flow magic to verify the exports of this file match the original version.
 ((((null: any): ExportsType): FeatureFlagsType): ExportsType);

packages/shared/forks/ReactFeatureFlags.native-oss.js

@@ -42,6 +42,7 @@ export const enablePostpone: boolean = false;
 export const enableReactTestRendererWarning: boolean = false;
 export const enableRetryLaneExpiration: boolean = false;
 export const enableComponentPerformanceTrack: boolean = true;
+export const enablePerformanceIssueReporting: boolean = false;
 export const enableSchedulingProfiler: boolean =
   !enableComponentPerformanceTrack && __PROFILE__;
 export const enableScopeAPI: boolean = false;

packages/shared/forks/ReactFeatureFlags.test-renderer.js

@@ -16,6 +16,7 @@ export const enableProfilerTimer: boolean = __PROFILE__;
 export const enableProfilerCommitHooks: boolean = __PROFILE__;
 export const enableProfilerNestedUpdatePhase: boolean = __PROFILE__;
 export const enableComponentPerformanceTrack: boolean = true;
+export const enablePerformanceIssueReporting: boolean = false;
 export const enableUpdaterTracking: boolean = false;
 export const enableLegacyCache: boolean = __EXPERIMENTAL__;
 export const enableAsyncIterableChildren: boolean = false;

packages/shared/forks/ReactFeatureFlags.test-renderer.native-fb.js

@@ -41,6 +41,7 @@ export const enableReactTestRendererWarning = false;
 export const enableRetryLaneExpiration = false;
 export const enableSchedulingProfiler = __PROFILE__;
 export const enableComponentPerformanceTrack = false;
+export const enablePerformanceIssueReporting = false;
 export const enableScopeAPI = false;
 export const enableEagerAlternateStateNodeCleanup = true;
 export const enableSuspenseAvoidThisFallback = false;

packages/shared/forks/ReactFeatureFlags.test-renderer.www.js

@@ -16,6 +16,7 @@ export const enableProfilerTimer: boolean = __PROFILE__;
 export const enableProfilerCommitHooks: boolean = __PROFILE__;
 export const enableProfilerNestedUpdatePhase: boolean = __PROFILE__;
 export const enableComponentPerformanceTrack: boolean = false;
+export const enablePerformanceIssueReporting: boolean = false;
 export const enableUpdaterTracking: boolean = false;
 export const enableLegacyCache: boolean = true;
 export const enableAsyncIterableChildren: boolean = false;

packages/shared/forks/ReactFeatureFlags.www.js

@@ -59,6 +59,8 @@ export const enableThrottledScheduling: boolean = false;
 
 export const enableHydrationLaneScheduling: boolean = true;
 
+export const enablePerformanceIssueReporting: boolean = false;
+
 // Logs additional User Timing API marks for use with an experimental profiling tool.
 export const enableSchedulingProfiler: boolean =
   __PROFILE__ && dynamicFeatureFlags.enableSchedulingProfiler;