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[WIP] Fix for fiber root scheduling memory leak #11644

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merged 2 commits into from
Nov 28, 2017
Merged

[WIP] Fix for fiber root scheduling memory leak #11644

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56b9442
Fix for root memory leak
trueadm Nov 23, 2017
f1d48f1
forgot to add code
trueadm Nov 23, 2017
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38 changes: 24 additions & 14 deletions packages/react-reconciler/src/ReactFiberScheduler.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1168,6 +1168,27 @@ export default function<T, P, I, TI, HI, PI, C, CC, CX, PL>(
return scheduleWorkImpl(fiber, expirationTime, false);
}

function checkRootNeedsClearing(
root: FiberRoot,
fiber: Fiber,
expirationTime: ExpirationTime,
) {
if (
!isWorking &&
root === nextRoot &&
expirationTime < nextRenderExpirationTime
) {
// Restart the root from the top.
if (nextUnitOfWork !== null) {
// This is an interruption. (Used for performance tracking.)
interruptedBy = fiber;
}
nextRoot = null;
nextUnitOfWork = null;
nextRenderExpirationTime = NoWork;
}
}

function scheduleWorkImpl(
fiber: Fiber,
expirationTime: ExpirationTime,
Expand Down Expand Up @@ -1203,21 +1224,10 @@ export default function<T, P, I, TI, HI, PI, C, CC, CX, PL>(
if (node.return === null) {
if (node.tag === HostRoot) {
const root: FiberRoot = (node.stateNode: any);
if (
!isWorking &&
root === nextRoot &&
expirationTime < nextRenderExpirationTime
) {
// Restart the root from the top.
if (nextUnitOfWork !== null) {
// This is an interruption. (Used for performance tracking.)
interruptedBy = fiber;
}
nextRoot = null;
nextUnitOfWork = null;
nextRenderExpirationTime = NoWork;
}

checkRootNeedsClearing(root, fiber, expirationTime);
requestWork(root, expirationTime);
checkRootNeedsClearing(root, fiber, expirationTime);
} else {
if (__DEV__) {
if (!isErrorRecovery && fiber.tag === ClassComponent) {
Expand Down