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ReactFiberUnwindWork.new.js
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ReactFiberUnwindWork.new.js
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/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow
*/
import type {ReactContext} from 'shared/ReactTypes';
import type {Fiber, FiberRoot} from './ReactInternalTypes';
import type {Lanes} from './ReactFiberLane.new';
import type {SuspenseState} from './ReactFiberSuspenseComponent.new';
import type {Cache, SpawnedCachePool} from './ReactFiberCacheComponent.new';
import {resetWorkInProgressVersions as resetMutableSourceWorkInProgressVersions} from './ReactMutableSource.new';
import {
ClassComponent,
HostRoot,
HostComponent,
HostPortal,
ContextProvider,
SuspenseComponent,
SuspenseListComponent,
OffscreenComponent,
LegacyHiddenComponent,
CacheComponent,
} from './ReactWorkTags';
import {DidCapture, NoFlags, ShouldCapture} from './ReactFiberFlags';
import {NoMode, ProfileMode} from './ReactTypeOfMode';
import {
enableSuspenseServerRenderer,
enableProfilerTimer,
enableCache,
} from 'shared/ReactFeatureFlags';
import {popHostContainer, popHostContext} from './ReactFiberHostContext.new';
import {popSuspenseContext} from './ReactFiberSuspenseContext.new';
import {resetHydrationState} from './ReactFiberHydrationContext.new';
import {
isContextProvider as isLegacyContextProvider,
popContext as popLegacyContext,
popTopLevelContextObject as popTopLevelLegacyContextObject,
} from './ReactFiberContext.new';
import {popProvider} from './ReactFiberNewContext.new';
import {popRenderLanes} from './ReactFiberWorkLoop.new';
import {
popCacheProvider,
popRootCachePool,
popCachePool,
} from './ReactFiberCacheComponent.new';
import {transferActualDuration} from './ReactProfilerTimer.new';
import {popTreeContext} from './ReactFiberTreeContext.new';
function unwindWork(workInProgress: Fiber, renderLanes: Lanes) {
// Note: This intentionally doesn't check if we're hydrating because comparing
// to the current tree provider fiber is just as fast and less error-prone.
// Ideally we would have a special version of the work loop only
// for hydration.
popTreeContext(workInProgress);
switch (workInProgress.tag) {
case ClassComponent: {
const Component = workInProgress.type;
if (isLegacyContextProvider(Component)) {
popLegacyContext(workInProgress);
}
const flags = workInProgress.flags;
if (flags & ShouldCapture) {
workInProgress.flags = (flags & ~ShouldCapture) | DidCapture;
if (
enableProfilerTimer &&
(workInProgress.mode & ProfileMode) !== NoMode
) {
transferActualDuration(workInProgress);
}
return workInProgress;
}
return null;
}
case HostRoot: {
if (enableCache) {
const root: FiberRoot = workInProgress.stateNode;
popRootCachePool(root, renderLanes);
const cache: Cache = workInProgress.memoizedState.cache;
popCacheProvider(workInProgress, cache);
}
popHostContainer(workInProgress);
popTopLevelLegacyContextObject(workInProgress);
resetMutableSourceWorkInProgressVersions();
const flags = workInProgress.flags;
if (
(flags & ShouldCapture) !== NoFlags &&
(flags & DidCapture) === NoFlags
) {
// There was an error during render that wasn't captured by a suspense
// boundary. Do a second pass on the root to unmount the children.
workInProgress.flags = (flags & ~ShouldCapture) | DidCapture;
return workInProgress;
}
// We unwound to the root without completing it. Exit.
return null;
}
case HostComponent: {
// TODO: popHydrationState
popHostContext(workInProgress);
return null;
}
case SuspenseComponent: {
popSuspenseContext(workInProgress);
if (enableSuspenseServerRenderer) {
const suspenseState: null | SuspenseState =
workInProgress.memoizedState;
if (suspenseState !== null && suspenseState.dehydrated !== null) {
if (workInProgress.alternate === null) {
throw new Error(
'Threw in newly mounted dehydrated component. This is likely a bug in ' +
'React. Please file an issue.',
);
}
resetHydrationState();
}
}
const flags = workInProgress.flags;
if (flags & ShouldCapture) {
workInProgress.flags = (flags & ~ShouldCapture) | DidCapture;
// Captured a suspense effect. Re-render the boundary.
if (
enableProfilerTimer &&
(workInProgress.mode & ProfileMode) !== NoMode
) {
transferActualDuration(workInProgress);
}
return workInProgress;
}
return null;
}
case SuspenseListComponent: {
popSuspenseContext(workInProgress);
// SuspenseList doesn't actually catch anything. It should've been
// caught by a nested boundary. If not, it should bubble through.
return null;
}
case HostPortal:
popHostContainer(workInProgress);
return null;
case ContextProvider:
const context: ReactContext<any> = workInProgress.type._context;
popProvider(context, workInProgress);
return null;
case OffscreenComponent:
case LegacyHiddenComponent:
popRenderLanes(workInProgress);
if (enableCache) {
const spawnedCachePool: SpawnedCachePool | null = (workInProgress.updateQueue: any);
if (spawnedCachePool !== null) {
popCachePool(workInProgress);
}
}
return null;
case CacheComponent:
if (enableCache) {
const cache: Cache = workInProgress.memoizedState.cache;
popCacheProvider(workInProgress, cache);
}
return null;
default:
return null;
}
}
function unwindInterruptedWork(interruptedWork: Fiber, renderLanes: Lanes) {
// Note: This intentionally doesn't check if we're hydrating because comparing
// to the current tree provider fiber is just as fast and less error-prone.
// Ideally we would have a special version of the work loop only
// for hydration.
popTreeContext(interruptedWork);
switch (interruptedWork.tag) {
case ClassComponent: {
const childContextTypes = interruptedWork.type.childContextTypes;
if (childContextTypes !== null && childContextTypes !== undefined) {
popLegacyContext(interruptedWork);
}
break;
}
case HostRoot: {
if (enableCache) {
const root: FiberRoot = interruptedWork.stateNode;
popRootCachePool(root, renderLanes);
const cache: Cache = interruptedWork.memoizedState.cache;
popCacheProvider(interruptedWork, cache);
}
popHostContainer(interruptedWork);
popTopLevelLegacyContextObject(interruptedWork);
resetMutableSourceWorkInProgressVersions();
break;
}
case HostComponent: {
popHostContext(interruptedWork);
break;
}
case HostPortal:
popHostContainer(interruptedWork);
break;
case SuspenseComponent:
popSuspenseContext(interruptedWork);
break;
case SuspenseListComponent:
popSuspenseContext(interruptedWork);
break;
case ContextProvider:
const context: ReactContext<any> = interruptedWork.type._context;
popProvider(context, interruptedWork);
break;
case OffscreenComponent:
case LegacyHiddenComponent:
popRenderLanes(interruptedWork);
if (enableCache) {
const spawnedCachePool: SpawnedCachePool | null = (interruptedWork.updateQueue: any);
if (spawnedCachePool !== null) {
popCachePool(interruptedWork);
}
}
break;
case CacheComponent:
if (enableCache) {
const cache: Cache = interruptedWork.memoizedState.cache;
popCacheProvider(interruptedWork, cache);
}
break;
default:
break;
}
}
export {unwindWork, unwindInterruptedWork};