Tag MemoComponent with PerformedWork effectTag for DevTools Profiler (facebook#14141)

bvaughn · web-flow · commit 5afa1c4eda2e · 2018-11-07T13:56:12.000-08:00
diff --git a/packages/react-reconciler/src/ReactFiberBeginWork.js b/packages/react-reconciler/src/ReactFiberBeginWork.js
@@ -283,6 +283,8 @@ function updateMemoComponent(
       );
     }
   }
+  // React DevTools reads this flag.
+  workInProgress.effectTag |= PerformedWork;
   let newChild = createWorkInProgress(
     currentChild,
     nextProps,

Original file line number	Diff line number	Diff line change
`@@ -283,6 +283,8 @@ function updateMemoComponent(`
`283`	`283`	`);`
`284`	`284`	`}`
`285`	`285`	`}`
	`286`	`+ // React DevTools reads this flag.`
	`287`	`+ workInProgress.effectTag \|= PerformedWork;`
`286`	`288`	`let newChild = createWorkInProgress(`
`287`	`289`	`currentChild,`
`288`	`290`	`nextProps,`