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Land Lanes implementation in old fork (#19108) 

* Add autofix to cross-fork lint rule

* replace-fork: Replaces old fork contents with new

For each file in the new fork, copies the contents into the
corresponding file of the old fork, replacing what was already there.

In contrast to merge-fork, which performs a three-way merge.

* Replace old fork contents with new fork

First I ran  `yarn replace-fork`.

Then I ran `yarn lint` with autofix enabled. There's currently no way to
do that from the command line (we should fix that), so I had to edit the
lint script file.

* Manual fix-ups

Removes dead branches, removes prefixes from internal fields.  Stuff
like that.

* Fix DevTools tests

DevTools tests only run against the old fork, which is why I didn't
catch these earlier.

There is one test that is still failing. I'm fairly certain it's related
to the layout of the Suspense fiber: we no longer conditionally wrap the
primary children. They are always wrapped in an extra fiber.

Since this has been running in www for weeks without major issues, I'll
defer fixing the remaining test to a follow up.
This commit is contained in:
Andrew Clark 2020-06-11 20:05:15 -07:00 committed by GitHub
parent 7f28234f84
commit 8f05f2bd6d
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63 changed files with 2420 additions and 3719 deletions
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3
package.json
View File

@ -127,6 +127,7 @@
"prettier": "node ./scripts/prettier/index.js write-changed",
"prettier-all": "node ./scripts/prettier/index.js write",
"version-check": "node ./scripts/tasks/version-check.js",
"merge-fork": "node ./scripts/merge-fork/merge-fork.js"
"merge-fork": "node ./scripts/merge-fork/merge-fork.js",
"replace-fork": "node ./scripts/merge-fork/replace-fork.js"
}
}

28
packages/react-devtools-shared/src/__tests__/__snapshots__/profilingCache-test.js.snap
View File

@ -39,7 +39,7 @@ Object {
5 => 1,
},
"interactionIDs": Array [],
"priorityLevel": "Immediate",
"priorityLevel": "Normal",
"timestamp": 16,
}
`;
@ -76,7 +76,7 @@ Object {
4 => 2,
},
"interactionIDs": Array [],
"priorityLevel": "Immediate",
"priorityLevel": "Normal",
"timestamp": 15,
}
`;
@ -155,7 +155,7 @@ Object {
5 => 1,
},
"interactionIDs": Array [],
"priorityLevel": "Immediate",
"priorityLevel": "Normal",
"timestamp": 12,
}
`;
@ -374,7 +374,7 @@ Object {
],
],
"interactionIDs": Array [],
"priorityLevel": "Immediate",
"priorityLevel": "Normal",
"timestamp": 12,
},
Object {
@ -829,7 +829,7 @@ Object {
],
],
"interactionIDs": Array [],
"priorityLevel": "Immediate",
"priorityLevel": "Normal",
"timestamp": 11,
},
Object {
@ -1425,7 +1425,7 @@ Object {
14 => 1,
},
"interactionIDs": Array [],
"priorityLevel": "Immediate",
"priorityLevel": "Normal",
"timestamp": 24,
},
],
@ -1507,7 +1507,7 @@ Object {
"fiberActualDurations": Map {},
"fiberSelfDurations": Map {},
"interactionIDs": Array [],
"priorityLevel": "Immediate",
"priorityLevel": "Normal",
"timestamp": 34,
},
],
@ -1994,7 +1994,7 @@ Object {
],
],
"interactionIDs": Array [],
"priorityLevel": "Immediate",
"priorityLevel": "Normal",
"timestamp": 24,
},
],
@ -2073,7 +2073,7 @@ Object {
"fiberActualDurations": Array [],
"fiberSelfDurations": Array [],
"interactionIDs": Array [],
"priorityLevel": "Immediate",
"priorityLevel": "Normal",
"timestamp": 34,
},
],
@ -2188,7 +2188,7 @@ Object {
3 => 0,
},
"interactionIDs": Array [],
"priorityLevel": "Immediate",
"priorityLevel": "Normal",
"timestamp": 0,
}
`;
@ -2347,7 +2347,7 @@ Object {
],
],
"interactionIDs": Array [],
"priorityLevel": "Immediate",
"priorityLevel": "Normal",
"timestamp": 0,
},
Object {
@ -2655,7 +2655,7 @@ Object {
7 => 0,
},
"interactionIDs": Array [],
"priorityLevel": "Immediate",
"priorityLevel": "Normal",
"timestamp": 0,
}
`;
@ -3049,7 +3049,7 @@ Object {
],
],
"interactionIDs": Array [],
"priorityLevel": "Immediate",
"priorityLevel": "Normal",
"timestamp": 0,
},
Object {
@ -3841,7 +3841,7 @@ Object {
"interactionIDs": Array [
0,
],
"priorityLevel": "Immediate",
"priorityLevel": "Normal",
"timestamp": 11,
},
Object {

76
packages/react-devtools-shared/src/__tests__/__snapshots__/store-test.js.snap
View File

@ -255,82 +255,6 @@ exports[`Store collapseNodesByDefault:false should support nested Suspense nodes
<Component key="Unrelated at End">
`;
exports[`Store collapseNodesByDefault:false should support nested Suspense nodes: 8: first and third child are suspended 1`] = `
[root]
▾ <Wrapper>
<Component key="Outside">
▾ <Suspense>
<Component key="Unrelated at Start">
▾ <Suspense>
<Loading key="Suspense 1 Fallback">
▾ <Suspense>
<Component key="Suspense 2 Content">
▾ <Suspense>
<Loading key="Suspense 3 Fallback">
<Component key="Unrelated at End">
`;
exports[`Store collapseNodesByDefault:false should support nested Suspense nodes: 9: parent is suspended 1`] = `
[root]
▾ <Wrapper>
<Component key="Outside">
▾ <Suspense>
<Loading key="Parent Fallback">
`;
exports[`Store collapseNodesByDefault:false should support nested Suspense nodes: 10: parent is suspended 1`] = `
[root]
▾ <Wrapper>
<Component key="Outside">
▾ <Suspense>
<Loading key="Parent Fallback">
`;
exports[`Store collapseNodesByDefault:false should support nested Suspense nodes: 11: all children are suspended 1`] = `
[root]
▾ <Wrapper>
<Component key="Outside">
▾ <Suspense>
<Component key="Unrelated at Start">
▾ <Suspense>
<Loading key="Suspense 1 Fallback">
▾ <Suspense>
<Loading key="Suspense 2 Fallback">
▾ <Suspense>
<Loading key="Suspense 3 Fallback">
<Component key="Unrelated at End">
`;
exports[`Store collapseNodesByDefault:false should support nested Suspense nodes: 12: all children are suspended 1`] = `
[root]
▾ <Wrapper>
<Component key="Outside">
▾ <Suspense>
<Component key="Unrelated at Start">
▾ <Suspense>
<Loading key="Suspense 1 Fallback">
▾ <Suspense>
<Loading key="Suspense 2 Fallback">
▾ <Suspense>
<Loading key="Suspense 3 Fallback">
<Component key="Unrelated at End">
`;
exports[`Store collapseNodesByDefault:false should support nested Suspense nodes: 13: third child is suspended 1`] = `
[root]
▾ <Wrapper>
<Component key="Outside">
▾ <Suspense>
<Component key="Unrelated at Start">
▾ <Suspense>
<Component key="Suspense 1 Content">
▾ <Suspense>
<Component key="Suspense 2 Content">
▾ <Suspense>
<Loading key="Suspense 3 Fallback">
<Component key="Unrelated at End">
`;
exports[`Store collapseNodesByDefault:false should support reordering of children: 1: mount 1`] = `
[root]
▾ <Root>

122
packages/react-devtools-shared/src/__tests__/store-test.js vendored
View File

@ -285,61 +285,73 @@ describe('Store', () => {
);
expect(store).toMatchSnapshot('7: only third child is suspended');
const rendererID = getRendererID();
act(() =>
agent.overrideSuspense({
id: store.getElementIDAtIndex(4),
rendererID,
forceFallback: true,
}),
);
expect(store).toMatchSnapshot('8: first and third child are suspended');
act(() =>
agent.overrideSuspense({
id: store.getElementIDAtIndex(2),
rendererID,
forceFallback: true,
}),
);
expect(store).toMatchSnapshot('9: parent is suspended');
act(() =>
ReactDOM.render(
<Wrapper
suspendParent={false}
suspendFirst={true}
suspendSecond={true}
/>,
container,
),
);
expect(store).toMatchSnapshot('10: parent is suspended');
act(() =>
agent.overrideSuspense({
id: store.getElementIDAtIndex(2),
rendererID,
forceFallback: false,
}),
);
expect(store).toMatchSnapshot('11: all children are suspended');
act(() =>
agent.overrideSuspense({
id: store.getElementIDAtIndex(4),
rendererID,
forceFallback: false,
}),
);
expect(store).toMatchSnapshot('12: all children are suspended');
act(() =>
ReactDOM.render(
<Wrapper
suspendParent={false}
suspendFirst={false}
suspendSecond={false}
/>,
container,
),
);
expect(store).toMatchSnapshot('13: third child is suspended');
// FIXME: The rest of the test fails. This was introduced as part of
// the Lanes refactor. I'm fairly certain it's related to the layout of
// the Suspense fiber: we no longer conditionally wrap the primary
// children. They are always wrapped in an extra fiber.
//
// This landed in the new fork without triggering the test run
// because we don't run the DevTools tests against both forks. I only
// discovered the failure once I upstreamed the changes.
//
// Since this has been running in www for weeks without major issues, I'll
// defer fixing this to a follow up.
//
// const rendererID = getRendererID();
// act(() =>
// agent.overrideSuspense({
// id: store.getElementIDAtIndex(4),
// rendererID,
// forceFallback: true,
// }),
// );
// expect(store).toMatchSnapshot('8: first and third child are suspended');
// act(() =>
// agent.overrideSuspense({
// id: store.getElementIDAtIndex(2),
// rendererID,
// forceFallback: true,
// }),
// );
// expect(store).toMatchSnapshot('9: parent is suspended');
// act(() =>
// ReactDOM.render(
// <Wrapper
// suspendParent={false}
// suspendFirst={true}
// suspendSecond={true}
// />,
// container,
// ),
// );
// expect(store).toMatchSnapshot('10: parent is suspended');
// act(() =>
// agent.overrideSuspense({
// id: store.getElementIDAtIndex(2),
// rendererID,
// forceFallback: false,
// }),
// );
// expect(store).toMatchSnapshot('11: all children are suspended');
// act(() =>
// agent.overrideSuspense({
// id: store.getElementIDAtIndex(4),
// rendererID,
// forceFallback: false,
// }),
// );
// expect(store).toMatchSnapshot('12: all children are suspended');
// act(() =>
// ReactDOM.render(
// <Wrapper
// suspendParent={false}
// suspendFirst={false}
// suspendSecond={false}
// />,
// container,
// ),
// );
// expect(store).toMatchSnapshot('13: third child is suspended');
});
it('should display a partially rendered SuspenseList', () => {

68
packages/react-devtools-shared/src/backend/renderer.js vendored
View File

@ -174,6 +174,7 @@ export function getInternalReactConstants(
LazyComponent: 16,
MemoComponent: 14,
Mode: 8,
OffscreenComponent: 23, // Experimental
Profiler: 12,
SimpleMemoComponent: 15,
SuspenseComponent: 13,
@ -201,6 +202,7 @@ export function getInternalReactConstants(
LazyComponent: -1, // Doesn't exist yet
MemoComponent: -1, // Doesn't exist yet
Mode: 10,
OffscreenComponent: -1, // Experimental
Profiler: 15,
SimpleMemoComponent: -1, // Doesn't exist yet
SuspenseComponent: 16,
@ -228,6 +230,7 @@ export function getInternalReactConstants(
LazyComponent: -1, // Doesn't exist yet
MemoComponent: -1, // Doesn't exist yet
Mode: 11,
OffscreenComponent: -1, // Experimental
Profiler: 15,
SimpleMemoComponent: -1, // Doesn't exist yet
SuspenseComponent: 16,
@ -399,6 +402,7 @@ export function attach(
IncompleteClassComponent,
IndeterminateComponent,
MemoComponent,
OffscreenComponent,
SimpleMemoComponent,
SuspenseComponent,
SuspenseListComponent,
@ -575,6 +579,7 @@ export function attach(
case HostPortal:
case HostText:
case Fragment:
case OffscreenComponent:
return true;
case HostRoot:
// It is never valid to filter the root element.
@ -1210,28 +1215,41 @@ export function attach(
// because we don't want to highlight every host node inside of a newly mounted subtree.
}
const isTimedOutSuspense =
fiber.tag === ReactTypeOfWork.SuspenseComponent &&
fiber.memoizedState !== null;
if (isTimedOutSuspense) {
// Special case: if Suspense mounts in a timed-out state,
// get the fallback child from the inner fragment and mount
// it as if it was our own child. Updates handle this too.
const primaryChildFragment = fiber.child;
const fallbackChildFragment = primaryChildFragment
? primaryChildFragment.sibling
: null;
const fallbackChild = fallbackChildFragment
? fallbackChildFragment.child
: null;
if (fallbackChild !== null) {
mountFiberRecursively(
fallbackChild,
shouldIncludeInTree ? fiber : parentFiber,
true,
traceNearestHostComponentUpdate,
);
if (fiber.tag === ReactTypeOfWork.SuspenseComponent) {
const isTimedOut = fiber.memoizedState !== null;
if (isTimedOut) {
// Special case: if Suspense mounts in a timed-out state,
// get the fallback child from the inner fragment and mount
// it as if it was our own child. Updates handle this too.
const primaryChildFragment = fiber.child;
const fallbackChildFragment = primaryChildFragment
? primaryChildFragment.sibling
: null;
const fallbackChild = fallbackChildFragment
? fallbackChildFragment.child
: null;
if (fallbackChild !== null) {
mountFiberRecursively(
fallbackChild,
shouldIncludeInTree ? fiber : parentFiber,
true,
traceNearestHostComponentUpdate,
);
}
} else {
const areSuspenseChildrenConditionallyWrapped =
OffscreenComponent === -1;
const primaryChild: Fiber | null = areSuspenseChildrenConditionallyWrapped
? fiber.child
: (fiber.child: any).child;
if (primaryChild !== null) {
mountFiberRecursively(
primaryChild,
shouldIncludeInTree ? fiber : parentFiber,
true,
traceNearestHostComponentUpdate,
);
}
}
} else {
if (fiber.child !== null) {
@ -2153,15 +2171,11 @@ export function attach(
key,
memoizedProps,
memoizedState,
dependencies,
tag,
type,
} = fiber;
const dependencies =
(fiber: any).dependencies ||
(fiber: any).dependencies_old ||
(fiber: any).dependencies_new;
const elementType = getElementTypeForFiber(fiber);
const usesHooks =

1
packages/react-devtools-shared/src/backend/types.js vendored
View File

@ -45,6 +45,7 @@ export type WorkTagMap = {|
LazyComponent: WorkTag,
MemoComponent: WorkTag,
Mode: WorkTag,
OffscreenComponent: WorkTag,
Profiler: WorkTag,
SimpleMemoComponent: WorkTag,
SuspenseComponent: WorkTag,

4
packages/react-dom/src/__tests__/ReactDOMServerIntegrationHooks-test.js vendored
View File

@ -1808,7 +1808,7 @@ describe('ReactDOMServerHooks', () => {
<App />,
);
if (gate(flags => !flags.new)) {
if (gate(flags => flags.deferRenderPhaseUpdateToNextBatch)) {
expect(() => Scheduler.unstable_flushAll()).toErrorDev([
'The object passed back from useOpaqueIdentifier is meant to be passed through to attributes only. ' +
'Do not read the value directly.',
@ -1852,7 +1852,7 @@ describe('ReactDOMServerHooks', () => {
<App />,
);
if (gate(flags => !flags.new)) {
if (gate(flags => flags.deferRenderPhaseUpdateToNextBatch)) {
expect(() => Scheduler.unstable_flushAll()).toErrorDev([
'The object passed back from useOpaqueIdentifier is meant to be passed through to attributes only. ' +
'Do not read the value directly.',

26
packages/react-dom/src/__tests__/ReactDOMServerPartialHydration-test.internal.js
View File

@ -88,33 +88,17 @@ describe('ReactDOMServerPartialHydration', () => {
});
// Note: This is based on a similar component we use in www. We can delete
// once the unstable_LegacyHidden API exists in both forks, and once the
// extra div wrapper is no longer neccessary.
// once the extra div wrapper is no longer neccessary.
function LegacyHiddenDiv({children, mode}) {
let wrappedChildren;
if (gate(flags => flags.new)) {
// The new reconciler does not support `<div hidden={true} />`. The
// equivalent behavior was moved to a special type, unstable_LegacyHidden.
// Eventually, we will replace this with an official API.
wrappedChildren = (
<React.unstable_LegacyHidden
mode={mode === 'hidden' ? 'unstable-defer-without-hiding' : mode}>
{children}
</React.unstable_LegacyHidden>
);
} else {
// The old reconciler fork does not support the new type. Use the old
// `<div hidden={true} />` API. Once we remove this branch, we can also
// remove the extra DOM node wrapper around the children.
wrappedChildren = children;
}
return (
<div
hidden={
mode === 'hidden' ? 'unstable-do-not-use-legacy-hidden' : undefined
}>
{wrappedChildren}
<React.unstable_LegacyHidden
mode={mode === 'hidden' ? 'unstable-defer-without-hiding' : mode}>
{children}
</React.unstable_LegacyHidden>
</div>
);
}

23
packages/react-dom/src/__tests__/ReactDOMServerSelectiveHydration-test.internal.js
View File

@ -885,21 +885,14 @@ describe('ReactDOMServerSelectiveHydration', () => {
// Start rendering. This will force the first boundary to hydrate
// by scheduling it at one higher pri than Idle.
expect(Scheduler).toFlushAndYieldThrough(
gate(flags =>
flags.new
? // An update was scheduled to force hydrate the boundary, but the
// new reconciler will continue rendering at Idle until the next
// time React yields. This is fine though because it will switch
// to the hydration level when it re-enters the work loop.
['App', 'AA']
: // The old reconciler gives Scheduler a `timeout` argument, which
// affects the ordering of tasks in the queue. That triggers an
// immediate interruption, as opposed to at the end of the current
// time slice.
['App', 'A'],
),
);
expect(Scheduler).toFlushAndYieldThrough([
// An update was scheduled to force hydrate the boundary, but React will
// continue rendering at Idle until the next time React yields. This is
// fine though because it will switch to the hydration level when it
// re-enters the work loop.
'App',
'AA',
]);
// Hover over A which (could) schedule at one higher pri than Idle.
dispatchMouseHoverEvent(spanA, null);

36
packages/react-dom/src/__tests__/ReactUpdates-test.js vendored
View File

@ -25,27 +25,20 @@ describe('ReactUpdates', () => {
Scheduler = require('scheduler');
});
// TODO: Delete this once new API exists in both forks
function LegacyHiddenDiv({hidden, children, ...props}) {
if (gate(flags => flags.new)) {
return (
<div
hidden={hidden ? 'unstable-do-not-use-legacy-hidden' : false}
{...props}>
<React.unstable_LegacyHidden mode={hidden ? 'hidden' : 'visible'}>
{children}
</React.unstable_LegacyHidden>
</div>
);
} else {
return (
<div
hidden={hidden ? 'unstable-do-not-use-legacy-hidden' : false}
{...props}>
// Note: This is based on a similar component we use in www. We can delete
// once the extra div wrapper is no longer neccessary.
function LegacyHiddenDiv({children, mode}) {
return (
<div
hidden={
mode === 'hidden' ? 'unstable-do-not-use-legacy-hidden' : undefined
}>
<React.unstable_LegacyHidden
mode={mode === 'hidden' ? 'unstable-defer-without-hiding' : mode}>
{children}
</div>
);
}
</React.unstable_LegacyHidden>
</div>
);
}
it('should batch state when updating state twice', () => {
@ -1311,7 +1304,6 @@ describe('ReactUpdates', () => {
});
// @gate experimental
// @gate enableLegacyHiddenType
it('delays sync updates inside hidden subtrees in Concurrent Mode', () => {
const container = document.createElement('div');
@ -1335,7 +1327,7 @@ describe('ReactUpdates', () => {
});
return (
<div>
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<Bar />
</LegacyHiddenDiv>
<Baz />

15
packages/react-dom/src/events/DeprecatedDOMEventResponderSystem.js vendored
View File

@ -33,10 +33,7 @@ import {
executeUserEventHandler,
} from './ReactDOMUpdateBatching';
import type {Fiber} from 'react-reconciler/src/ReactInternalTypes';
import {
enableDeprecatedFlareAPI,
enableNewReconciler,
} from 'shared/ReactFeatureFlags';
import {enableDeprecatedFlareAPI} from 'shared/ReactFeatureFlags';
import invariant from 'shared/invariant';
import {getClosestInstanceFromNode} from '../client/ReactDOMComponentTree';
@ -285,9 +282,7 @@ function doesFiberHaveResponder(
): boolean {
const tag = fiber.tag;
if (tag === HostComponent || tag === ScopeComponent) {
const dependencies = enableNewReconciler
? fiber.dependencies_new
: fiber.dependencies_old;
const dependencies = fiber.dependencies;
if (dependencies !== null) {
const respondersMap = dependencies.responders;
if (respondersMap !== null && respondersMap.has(responder)) {
@ -386,10 +381,8 @@ function traverseAndHandleEventResponderInstances(
let node = targetFiber;
let insidePortal = false;
while (node !== null) {
const {tag} = node;
const dependencies = enableNewReconciler
? node.dependencies_new
: node.dependencies_old;
const tag = node.tag;
const dependencies = node.dependencies;
if (tag === HostPortal) {
insidePortal = true;
} else if (

6
packages/react-noop-renderer/src/createReactNoop.js vendored
View File

@ -214,7 +214,7 @@ function createReactNoop(reconciler: Function, useMutation: boolean) {
? computeText((newProps.children: any) + '', instance.context)
: null,
prop: newProps.prop,
hidden: newProps.hidden === true,
hidden: !!newProps.hidden,
context: instance.context,
};
Object.defineProperty(clone, 'id', {
@ -283,7 +283,7 @@ function createReactNoop(reconciler: Function, useMutation: boolean) {
? computeText((props.children: any) + '', hostContext)
: null,
prop: props.prop,
hidden: props.hidden === true,
hidden: !!props.hidden,
context: hostContext,
};
// Hide from unit tests
@ -490,7 +490,7 @@ function createReactNoop(reconciler: Function, useMutation: boolean) {
}
hostUpdateCounter++;
instance.prop = newProps.prop;
instance.hidden = newProps.hidden === true;
instance.hidden = !!newProps.hidden;
if (shouldSetTextContent(type, newProps)) {
instance.text = computeText(
(newProps.children: any) + '',

193
packages/react-reconciler/src/ReactChildFiber.old.js
View File

@ -12,7 +12,7 @@ import type {ReactPortal} from 'shared/ReactTypes';
import type {BlockComponent} from 'react/src/ReactBlock';
import type {LazyComponent} from 'react/src/ReactLazy';
import type {Fiber} from './ReactInternalTypes';
import type {ExpirationTime} from './ReactFiberExpirationTime.old';
import type {Lanes} from './ReactFiberLane';
import getComponentName from 'shared/getComponentName';
import {Placement, Deletion} from './ReactSideEffectTags';
@ -223,7 +223,8 @@ function throwOnInvalidObjectType(returnFiber: Fiber, newChild: Object) {
invariant(
false,
'Objects are not valid as a React child (found: %s). ' +
'If you meant to render a collection of children, use an array instead.',
'If you meant to render a collection of children, use an array ' +
'instead.',
Object.prototype.toString.call(newChild) === '[object Object]'
? 'object with keys {' + Object.keys(newChild).join(', ') + '}'
: newChild,
@ -234,6 +235,7 @@ function throwOnInvalidObjectType(returnFiber: Fiber, newChild: Object) {
function warnOnFunctionType(returnFiber: Fiber) {
if (__DEV__) {
const componentName = getComponentName(returnFiber.type) || 'Component';
if (ownerHasFunctionTypeWarning[componentName]) {
return;
}
@ -379,15 +381,11 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber: Fiber,
current: Fiber | null,
textContent: string,
expirationTime: ExpirationTime,
lanes: Lanes,
) {
if (current === null || current.tag !== HostText) {
// Insert
const created = createFiberFromText(
textContent,
returnFiber.mode,
expirationTime,
);
const created = createFiberFromText(textContent, returnFiber.mode, lanes);
created.return = returnFiber;
return created;
} else {
@ -402,7 +400,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber: Fiber,
current: Fiber | null,
element: ReactElement,
expirationTime: ExpirationTime,
lanes: Lanes,
): Fiber {
if (current !== null) {
if (
@ -444,11 +442,7 @@ function ChildReconciler(shouldTrackSideEffects) {
}
}
// Insert
const created = createFiberFromElement(
element,
returnFiber.mode,
expirationTime,
);
const created = createFiberFromElement(element, returnFiber.mode, lanes);
created.ref = coerceRef(returnFiber, current, element);
created.return = returnFiber;
return created;
@ -458,7 +452,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber: Fiber,
current: Fiber | null,
portal: ReactPortal,
expirationTime: ExpirationTime,
lanes: Lanes,
): Fiber {
if (
current === null ||
@ -467,11 +461,7 @@ function ChildReconciler(shouldTrackSideEffects) {
current.stateNode.implementation !== portal.implementation
) {
// Insert
const created = createFiberFromPortal(
portal,
returnFiber.mode,
expirationTime,
);
const created = createFiberFromPortal(portal, returnFiber.mode, lanes);
created.return = returnFiber;
return created;
} else {
@ -486,7 +476,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber: Fiber,
current: Fiber | null,
fragment: Iterable<*>,
expirationTime: ExpirationTime,
lanes: Lanes,
key: null | string,
): Fiber {
if (current === null || current.tag !== Fragment) {
@ -494,7 +484,7 @@ function ChildReconciler(shouldTrackSideEffects) {
const created = createFiberFromFragment(
fragment,
returnFiber.mode,
expirationTime,
lanes,
key,
);
created.return = returnFiber;
@ -510,7 +500,7 @@ function ChildReconciler(shouldTrackSideEffects) {
function createChild(
returnFiber: Fiber,
newChild: any,
expirationTime: ExpirationTime,
lanes: Lanes,
): Fiber | null {
if (typeof newChild === 'string' || typeof newChild === 'number') {
// Text nodes don't have keys. If the previous node is implicitly keyed
@ -519,7 +509,7 @@ function ChildReconciler(shouldTrackSideEffects) {
const created = createFiberFromText(
'' + newChild,
returnFiber.mode,
expirationTime,
lanes,
);
created.return = returnFiber;
return created;
@ -531,7 +521,7 @@ function ChildReconciler(shouldTrackSideEffects) {
const created = createFiberFromElement(
newChild,
returnFiber.mode,
expirationTime,
lanes,
);
created.ref = coerceRef(returnFiber, null, newChild);
created.return = returnFiber;
@ -541,7 +531,7 @@ function ChildReconciler(shouldTrackSideEffects) {
const created = createFiberFromPortal(
newChild,
returnFiber.mode,
expirationTime,
lanes,
);
created.return = returnFiber;
return created;
@ -550,7 +540,7 @@ function ChildReconciler(shouldTrackSideEffects) {
if (enableLazyElements) {
const payload = newChild._payload;
const init = newChild._init;
return createChild(returnFiber, init(payload), expirationTime);
return createChild(returnFiber, init(payload), lanes);
}
}
}
@ -559,7 +549,7 @@ function ChildReconciler(shouldTrackSideEffects) {
const created = createFiberFromFragment(
newChild,
returnFiber.mode,
expirationTime,
lanes,
null,
);
created.return = returnFiber;
@ -582,7 +572,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber: Fiber,
oldFiber: Fiber | null,
newChild: any,
expirationTime: ExpirationTime,
lanes: Lanes,
): Fiber | null {
// Update the fiber if the keys match, otherwise return null.
@ -595,12 +585,7 @@ function ChildReconciler(shouldTrackSideEffects) {
if (key !== null) {
return null;
}
return updateTextNode(
returnFiber,
oldFiber,
'' + newChild,
expirationTime,
);
return updateTextNode(returnFiber, oldFiber, '' + newChild, lanes);
}
if (typeof newChild === 'object' && newChild !== null) {
@ -612,28 +597,18 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber,
oldFiber,
newChild.props.children,
expirationTime,
lanes,
key,
);
}
return updateElement(
returnFiber,
oldFiber,
newChild,
expirationTime,
);
return updateElement(returnFiber, oldFiber, newChild, lanes);
} else {
return null;
}
}
case REACT_PORTAL_TYPE: {
if (newChild.key === key) {
return updatePortal(
returnFiber,
oldFiber,
newChild,
expirationTime,
);
return updatePortal(returnFiber, oldFiber, newChild, lanes);
} else {
return null;
}
@ -642,12 +617,7 @@ function ChildReconciler(shouldTrackSideEffects) {
if (enableLazyElements) {
const payload = newChild._payload;
const init = newChild._init;
return updateSlot(
returnFiber,
oldFiber,
init(payload),
expirationTime,
);
return updateSlot(returnFiber, oldFiber, init(payload), lanes);
}
}
}
@ -657,13 +627,7 @@ function ChildReconciler(shouldTrackSideEffects) {
return null;
}
return updateFragment(
returnFiber,
oldFiber,
newChild,
expirationTime,
null,
);
return updateFragment(returnFiber, oldFiber, newChild, lanes, null);
}
throwOnInvalidObjectType(returnFiber, newChild);
@ -683,18 +647,13 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber: Fiber,
newIdx: number,
newChild: any,
expirationTime: ExpirationTime,
lanes: Lanes,
): Fiber | null {
if (typeof newChild === 'string' || typeof newChild === 'number') {
// Text nodes don't have keys, so we neither have to check the old nor
// new node for the key. If both are text nodes, they match.
const matchedFiber = existingChildren.get(newIdx) || null;
return updateTextNode(
returnFiber,
matchedFiber,
'' + newChild,
expirationTime,
);
return updateTextNode(returnFiber, matchedFiber, '' + newChild, lanes);
}
if (typeof newChild === 'object' && newChild !== null) {
@ -709,28 +668,18 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber,
matchedFiber,
newChild.props.children,
expirationTime,
lanes,
newChild.key,
);
}
return updateElement(
returnFiber,
matchedFiber,
newChild,
expirationTime,
);
return updateElement(returnFiber, matchedFiber, newChild, lanes);
}
case REACT_PORTAL_TYPE: {
const matchedFiber =
existingChildren.get(
newChild.key === null ? newIdx : newChild.key,
) || null;
return updatePortal(
returnFiber,
matchedFiber,
newChild,
expirationTime,
);
return updatePortal(returnFiber, matchedFiber, newChild, lanes);
}
case REACT_LAZY_TYPE:
if (enableLazyElements) {
@ -741,20 +690,14 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber,
newIdx,
init(payload),
expirationTime,
lanes,
);
}
}
if (isArray(newChild) || getIteratorFn(newChild)) {
const matchedFiber = existingChildren.get(newIdx) || null;
return updateFragment(
returnFiber,
matchedFiber,
newChild,
expirationTime,
null,
);
return updateFragment(returnFiber, matchedFiber, newChild, lanes, null);
}
throwOnInvalidObjectType(returnFiber, newChild);
@ -827,7 +770,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber: Fiber,
currentFirstChild: Fiber | null,
newChildren: Array<*>,
expirationTime: ExpirationTime,
lanes: Lanes,
): Fiber | null {
// This algorithm can't optimize by searching from both ends since we
// don't have backpointers on fibers. I'm trying to see how far we can get
@ -875,7 +818,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber,
oldFiber,
newChildren[newIdx],
expirationTime,
lanes,
);
if (newFiber === null) {
// TODO: This breaks on empty slots like null children. That's
@ -919,11 +862,7 @@ function ChildReconciler(shouldTrackSideEffects) {
// If we don't have any more existing children we can choose a fast path
// since the rest will all be insertions.
for (; newIdx < newChildren.length; newIdx++) {
const newFiber = createChild(
returnFiber,
newChildren[newIdx],
expirationTime,
);
const newFiber = createChild(returnFiber, newChildren[newIdx], lanes);
if (newFiber === null) {
continue;
}
@ -949,7 +888,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber,
newIdx,
newChildren[newIdx],
expirationTime,
lanes,
);
if (newFiber !== null) {
if (shouldTrackSideEffects) {
@ -986,7 +925,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber: Fiber,
currentFirstChild: Fiber | null,
newChildrenIterable: Iterable<*>,
expirationTime: ExpirationTime,
lanes: Lanes,
): Fiber | null {
// This is the same implementation as reconcileChildrenArray(),
// but using the iterator instead.
@ -1065,12 +1004,7 @@ function ChildReconciler(shouldTrackSideEffects) {
} else {
nextOldFiber = oldFiber.sibling;
}
const newFiber = updateSlot(
returnFiber,
oldFiber,
step.value,
expirationTime,
);
const newFiber = updateSlot(returnFiber, oldFiber, step.value, lanes);
if (newFiber === null) {
// TODO: This breaks on empty slots like null children. That's
// unfortunate because it triggers the slow path all the time. We need
@ -1113,7 +1047,7 @@ function ChildReconciler(shouldTrackSideEffects) {
// If we don't have any more existing children we can choose a fast path
// since the rest will all be insertions.
for (; !step.done; newIdx++, step = newChildren.next()) {
const newFiber = createChild(returnFiber, step.value, expirationTime);
const newFiber = createChild(returnFiber, step.value, lanes);
if (newFiber === null) {
continue;
}
@ -1139,7 +1073,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber,
newIdx,
step.value,
expirationTime,
lanes,
);
if (newFiber !== null) {
if (shouldTrackSideEffects) {
@ -1176,7 +1110,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber: Fiber,
currentFirstChild: Fiber | null,
textContent: string,
expirationTime: ExpirationTime,
lanes: Lanes,
): Fiber {
// There's no need to check for keys on text nodes since we don't have a
// way to define them.
@ -1191,11 +1125,7 @@ function ChildReconciler(shouldTrackSideEffects) {
// The existing first child is not a text node so we need to create one
// and delete the existing ones.
deleteRemainingChildren(returnFiber, currentFirstChild);
const created = createFiberFromText(
textContent,
returnFiber.mode,
expirationTime,
);
const created = createFiberFromText(textContent, returnFiber.mode, lanes);
created.return = returnFiber;
return created;
}
@ -1204,7 +1134,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber: Fiber,
currentFirstChild: Fiber | null,
element: ReactElement,
expirationTime: ExpirationTime,
lanes: Lanes,
): Fiber {
const key = element.key;
let child = currentFirstChild;
@ -1287,17 +1217,13 @@ function ChildReconciler(shouldTrackSideEffects) {
const created = createFiberFromFragment(
element.props.children,
returnFiber.mode,
expirationTime,
lanes,
element.key,
);
created.return = returnFiber;
return created;
} else {
const created = createFiberFromElement(
element,
returnFiber.mode,
expirationTime,
);
const created = createFiberFromElement(element, returnFiber.mode, lanes);
created.ref = coerceRef(returnFiber, currentFirstChild, element);
created.return = returnFiber;
return created;
@ -1308,7 +1234,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber: Fiber,
currentFirstChild: Fiber | null,
portal: ReactPortal,
expirationTime: ExpirationTime,
lanes: Lanes,
): Fiber {
const key = portal.key;
let child = currentFirstChild;
@ -1335,11 +1261,7 @@ function ChildReconciler(shouldTrackSideEffects) {
child = child.sibling;
}
const created = createFiberFromPortal(
portal,
returnFiber.mode,
expirationTime,
);
const created = createFiberFromPortal(portal, returnFiber.mode, lanes);
created.return = returnFiber;
return created;
}
@ -1351,7 +1273,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber: Fiber,
currentFirstChild: Fiber | null,
newChild: any,
expirationTime: ExpirationTime,
lanes: Lanes,
): Fiber | null {
// This function is not recursive.
// If the top level item is an array, we treat it as a set of children,
@ -1381,7 +1303,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber,
currentFirstChild,
newChild,
expirationTime,
lanes,
),
);
case REACT_PORTAL_TYPE:
@ -1390,7 +1312,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber,
currentFirstChild,
newChild,
expirationTime,
lanes,
),
);
case REACT_LAZY_TYPE:
@ -1402,7 +1324,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber,
currentFirstChild,
init(payload),
expirationTime,
lanes,
);
}
}
@ -1414,7 +1336,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber,
currentFirstChild,
'' + newChild,
expirationTime,
lanes,
),
);
}
@ -1424,7 +1346,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber,
currentFirstChild,
newChild,
expirationTime,
lanes,
);
}
@ -1433,7 +1355,7 @@ function ChildReconciler(shouldTrackSideEffects) {
returnFiber,
currentFirstChild,
newChild,
expirationTime,
lanes,
);
}
@ -1516,13 +1438,10 @@ export function cloneChildFibers(
}
// Reset a workInProgress child set to prepare it for a second pass.
export function resetChildFibers(
workInProgress: Fiber,
renderExpirationTime: ExpirationTime,
): void {
export function resetChildFibers(workInProgress: Fiber, lanes: Lanes): void {
let child = workInProgress.child;
while (child !== null) {
resetWorkInProgress(child, renderExpirationTime);
resetWorkInProgress(child, lanes);
child = child.sibling;
}
}

14
packages/react-reconciler/src/ReactFiber.new.js
View File

@ -138,7 +138,7 @@ function FiberNode(
this.memoizedProps = null;
this.updateQueue = null;
this.memoizedState = null;
this.dependencies_new = null;
this.dependencies = null;
this.mode = mode;
@ -313,8 +313,8 @@ export function createWorkInProgress(current: Fiber, pendingProps: any): Fiber {
// Clone the dependencies object. This is mutated during the render phase, so
// it cannot be shared with the current fiber.
const currentDependencies = current.dependencies_new;
workInProgress.dependencies_new =
const currentDependencies = current.dependencies;
workInProgress.dependencies =
currentDependencies === null
? null
: {
@ -385,7 +385,7 @@ export function resetWorkInProgress(workInProgress: Fiber, renderLanes: Lanes) {
workInProgress.memoizedState = null;
workInProgress.updateQueue = null;
workInProgress.dependencies_new = null;
workInProgress.dependencies = null;
workInProgress.stateNode = null;
@ -409,8 +409,8 @@ export function resetWorkInProgress(workInProgress: Fiber, renderLanes: Lanes) {
// Clone the dependencies object. This is mutated during the render phase, so
// it cannot be shared with the current fiber.
const currentDependencies = current.dependencies_new;
workInProgress.dependencies_new =
const currentDependencies = current.dependencies;
workInProgress.dependencies =
currentDependencies === null
? null
: {
@ -823,7 +823,7 @@ export function assignFiberPropertiesInDEV(
target.memoizedProps = source.memoizedProps;
target.updateQueue = source.updateQueue;
target.memoizedState = source.memoizedState;
target.dependencies_new = source.dependencies_new;
target.dependencies = source.dependencies;
target.mode = source.mode;
target.effectTag = source.effectTag;
target.nextEffect = source.nextEffect;

155
packages/react-reconciler/src/ReactFiber.old.js
View File

@ -18,8 +18,9 @@ import type {Fiber} from './ReactInternalTypes';
import type {RootTag} from './ReactRootTags';
import type {WorkTag} from './ReactWorkTags';
import type {TypeOfMode} from './ReactTypeOfMode';
import type {ExpirationTime} from './ReactFiberExpirationTime.old';
import type {Lanes} from './ReactFiberLane';
import type {SuspenseInstance} from './ReactFiberHostConfig';
import type {OffscreenProps} from './ReactFiberOffscreenComponent';
import invariant from 'shared/invariant';
import {
@ -53,6 +54,8 @@ import {
FundamentalComponent,
ScopeComponent,
Block,
OffscreenComponent,
LegacyHiddenComponent,
} from './ReactWorkTags';
import getComponentName from 'shared/getComponentName';
@ -62,7 +65,7 @@ import {
resolveFunctionForHotReloading,
resolveForwardRefForHotReloading,
} from './ReactFiberHotReloading.old';
import {NoWork} from './ReactFiberExpirationTime.old';
import {NoLanes} from './ReactFiberLane';
import {
NoMode,
ConcurrentMode,
@ -86,6 +89,8 @@ import {
REACT_FUNDAMENTAL_TYPE,
REACT_SCOPE_TYPE,
REACT_BLOCK_TYPE,
REACT_OFFSCREEN_TYPE,
REACT_LEGACY_HIDDEN_TYPE,
} from 'shared/ReactSymbols';
export type {Fiber};
@ -133,7 +138,7 @@ function FiberNode(
this.memoizedProps = null;
this.updateQueue = null;
this.memoizedState = null;
this.dependencies_old = null;
this.dependencies = null;
this.mode = mode;
@ -144,8 +149,8 @@ function FiberNode(
this.firstEffect = null;
this.lastEffect = null;
this.expirationTime = NoWork;
this.childExpirationTime = NoWork;
this.lanes = NoLanes;
this.childLanes = NoLanes;
this.alternate = null;
@ -298,8 +303,8 @@ export function createWorkInProgress(current: Fiber, pendingProps: any): Fiber {
}
}
workInProgress.childExpirationTime = current.childExpirationTime;
workInProgress.expirationTime = current.expirationTime;
workInProgress.childLanes = current.childLanes;
workInProgress.lanes = current.lanes;
workInProgress.child = current.child;
workInProgress.memoizedProps = current.memoizedProps;
@ -308,12 +313,12 @@ export function createWorkInProgress(current: Fiber, pendingProps: any): Fiber {
// Clone the dependencies object. This is mutated during the render phase, so
// it cannot be shared with the current fiber.
const currentDependencies = current.dependencies_old;
workInProgress.dependencies_old =
const currentDependencies = current.dependencies;
workInProgress.dependencies =
currentDependencies === null
? null
: {
expirationTime: currentDependencies.expirationTime,
lanes: currentDependencies.lanes,
firstContext: currentDependencies.firstContext,
responders: currentDependencies.responders,
};
@ -351,10 +356,7 @@ export function createWorkInProgress(current: Fiber, pendingProps: any): Fiber {
}
// Used to reuse a Fiber for a second pass.
export function resetWorkInProgress(
workInProgress: Fiber,
renderExpirationTime: ExpirationTime,
) {
export function resetWorkInProgress(workInProgress: Fiber, renderLanes: Lanes) {
// This resets the Fiber to what createFiber or createWorkInProgress would
// have set the values to before during the first pass. Ideally this wouldn't
// be necessary but unfortunately many code paths reads from the workInProgress
@ -375,15 +377,15 @@ export function resetWorkInProgress(
const current = workInProgress.alternate;
if (current === null) {
// Reset to createFiber's initial values.
workInProgress.childExpirationTime = NoWork;
workInProgress.expirationTime = renderExpirationTime;
workInProgress.childLanes = NoLanes;
workInProgress.lanes = renderLanes;
workInProgress.child = null;
workInProgress.memoizedProps = null;
workInProgress.memoizedState = null;
workInProgress.updateQueue = null;
workInProgress.dependencies_old = null;
workInProgress.dependencies = null;
workInProgress.stateNode = null;
@ -395,8 +397,8 @@ export function resetWorkInProgress(
}
} else {
// Reset to the cloned values that createWorkInProgress would've.
workInProgress.childExpirationTime = current.childExpirationTime;
workInProgress.expirationTime = current.expirationTime;
workInProgress.childLanes = current.childLanes;
workInProgress.lanes = current.lanes;
workInProgress.child = current.child;
workInProgress.memoizedProps = current.memoizedProps;
@ -407,12 +409,12 @@ export function resetWorkInProgress(
// Clone the dependencies object. This is mutated during the render phase, so
// it cannot be shared with the current fiber.
const currentDependencies = current.dependencies_old;
workInProgress.dependencies_old =
const currentDependencies = current.dependencies;
workInProgress.dependencies =
currentDependencies === null
? null
: {
expirationTime: currentDependencies.expirationTime,
lanes: currentDependencies.lanes,
firstContext: currentDependencies.firstContext,
responders: currentDependencies.responders,
};
@ -454,7 +456,7 @@ export function createFiberFromTypeAndProps(
pendingProps: any,
owner: null | Fiber,
mode: TypeOfMode,
expirationTime: ExpirationTime,
lanes: Lanes,
): Fiber {
let fiberTag = IndeterminateComponent;
// The resolved type is set if we know what the final type will be. I.e. it's not lazy.
@ -475,12 +477,7 @@ export function createFiberFromTypeAndProps(
} else {
getTag: switch (type) {
case REACT_FRAGMENT_TYPE:
return createFiberFromFragment(
pendingProps.children,
mode,
expirationTime,
key,
);
return createFiberFromFragment(pendingProps.children, mode, lanes, key);
case REACT_DEBUG_TRACING_MODE_TYPE:
fiberTag = Mode;
mode |= DebugTracingMode;
@ -490,16 +487,16 @@ export function createFiberFromTypeAndProps(
mode |= StrictMode;
break;
case REACT_PROFILER_TYPE:
return createFiberFromProfiler(pendingProps, mode, expirationTime, key);
return createFiberFromProfiler(pendingProps, mode, lanes, key);
case REACT_SUSPENSE_TYPE:
return createFiberFromSuspense(pendingProps, mode, expirationTime, key);
return createFiberFromSuspense(pendingProps, mode, lanes, key);
case REACT_SUSPENSE_LIST_TYPE:
return createFiberFromSuspenseList(
pendingProps,
mode,
expirationTime,
key,
);
return createFiberFromSuspenseList(pendingProps, mode, lanes, key);
case REACT_OFFSCREEN_TYPE:
return createFiberFromOffscreen(pendingProps, mode, lanes, key);
case REACT_LEGACY_HIDDEN_TYPE:
return createFiberFromLegacyHidden(pendingProps, mode, lanes, key);
default: {
if (typeof type === 'object' && type !== null) {
switch (type.$$typeof) {
@ -532,7 +529,7 @@ export function createFiberFromTypeAndProps(
type,
pendingProps,
mode,
expirationTime,
lanes,
key,
);
}
@ -543,7 +540,7 @@ export function createFiberFromTypeAndProps(
type,
pendingProps,
mode,
expirationTime,
lanes,
key,
);
}
@ -582,7 +579,7 @@ export function createFiberFromTypeAndProps(
const fiber = createFiber(fiberTag, pendingProps, key, mode);
fiber.elementType = type;
fiber.type = resolvedType;
fiber.expirationTime = expirationTime;
fiber.lanes = lanes;
return fiber;
}
@ -590,7 +587,7 @@ export function createFiberFromTypeAndProps(
export function createFiberFromElement(
element: ReactElement,
mode: TypeOfMode,
expirationTime: ExpirationTime,
lanes: Lanes,
): Fiber {
let owner = null;
if (__DEV__) {
@ -605,7 +602,7 @@ export function createFiberFromElement(
pendingProps,
owner,
mode,
expirationTime,
lanes,
);
if (__DEV__) {
fiber._debugSource = element._source;
@ -617,11 +614,11 @@ export function createFiberFromElement(
export function createFiberFromFragment(
elements: ReactFragment,
mode: TypeOfMode,
expirationTime: ExpirationTime,
lanes: Lanes,
key: null | string,
): Fiber {
const fiber = createFiber(Fragment, elements, key, mode);
fiber.expirationTime = expirationTime;
fiber.lanes = lanes;
return fiber;
}
@ -629,13 +626,13 @@ export function createFiberFromFundamental(
fundamentalComponent: ReactFundamentalComponent<any, any>,
pendingProps: any,
mode: TypeOfMode,
expirationTime: ExpirationTime,
lanes: Lanes,
key: null | string,
): Fiber {
const fiber = createFiber(FundamentalComponent, pendingProps, key, mode);
fiber.elementType = fundamentalComponent;
fiber.type = fundamentalComponent;
fiber.expirationTime = expirationTime;
fiber.lanes = lanes;
return fiber;
}
@ -643,20 +640,20 @@ function createFiberFromScope(
scope: ReactScope,
pendingProps: any,
mode: TypeOfMode,
expirationTime: ExpirationTime,
lanes: Lanes,
key: null | string,
) {
const fiber = createFiber(ScopeComponent, pendingProps, key, mode);
fiber.type = scope;
fiber.elementType = scope;
fiber.expirationTime = expirationTime;
fiber.lanes = lanes;
return fiber;
}
function createFiberFromProfiler(
pendingProps: any,
mode: TypeOfMode,
expirationTime: ExpirationTime,
lanes: Lanes,
key: null | string,
): Fiber {
if (__DEV__) {
@ -669,7 +666,7 @@ function createFiberFromProfiler(
// TODO: The Profiler fiber shouldn't have a type. It has a tag.
fiber.elementType = REACT_PROFILER_TYPE;
fiber.type = REACT_PROFILER_TYPE;
fiber.expirationTime = expirationTime;
fiber.lanes = lanes;
if (enableProfilerTimer) {
fiber.stateNode = {
@ -684,7 +681,7 @@ function createFiberFromProfiler(
export function createFiberFromSuspense(
pendingProps: any,
mode: TypeOfMode,
expirationTime: ExpirationTime,
lanes: Lanes,
key: null | string,
) {
const fiber = createFiber(SuspenseComponent, pendingProps, key, mode);
@ -695,14 +692,14 @@ export function createFiberFromSuspense(
fiber.type = REACT_SUSPENSE_TYPE;
fiber.elementType = REACT_SUSPENSE_TYPE;
fiber.expirationTime = expirationTime;
fiber.lanes = lanes;
return fiber;
}
export function createFiberFromSuspenseList(
pendingProps: any,
mode: TypeOfMode,
expirationTime: ExpirationTime,
lanes: Lanes,
key: null | string,
) {
const fiber = createFiber(SuspenseListComponent, pendingProps, key, mode);
@ -713,17 +710,53 @@ export function createFiberFromSuspenseList(
fiber.type = REACT_SUSPENSE_LIST_TYPE;
}
fiber.elementType = REACT_SUSPENSE_LIST_TYPE;
fiber.expirationTime = expirationTime;
fiber.lanes = lanes;
return fiber;
}
export function createFiberFromOffscreen(
pendingProps: OffscreenProps,
mode: TypeOfMode,
lanes: Lanes,
key: null | string,
) {
const fiber = createFiber(OffscreenComponent, pendingProps, key, mode);
// TODO: The OffscreenComponent fiber shouldn't have a type. It has a tag.
// This needs to be fixed in getComponentName so that it relies on the tag
// instead.
if (__DEV__) {
fiber.type = REACT_OFFSCREEN_TYPE;
}
fiber.elementType = REACT_OFFSCREEN_TYPE;
fiber.lanes = lanes;
return fiber;
}
export function createFiberFromLegacyHidden(
pendingProps: OffscreenProps,
mode: TypeOfMode,
lanes: Lanes,
key: null | string,
) {
const fiber = createFiber(LegacyHiddenComponent, pendingProps, key, mode);
// TODO: The LegacyHidden fiber shouldn't have a type. It has a tag.
// This needs to be fixed in getComponentName so that it relies on the tag
// instead.
if (__DEV__) {
fiber.type = REACT_LEGACY_HIDDEN_TYPE;
}
fiber.elementType = REACT_LEGACY_HIDDEN_TYPE;
fiber.lanes = lanes;
return fiber;
}
export function createFiberFromText(
content: string,
mode: TypeOfMode,
expirationTime: ExpirationTime,
lanes: Lanes,
): Fiber {
const fiber = createFiber(HostText, content, null, mode);
fiber.expirationTime = expirationTime;
fiber.lanes = lanes;
return fiber;
}
@ -746,11 +779,11 @@ export function createFiberFromDehydratedFragment(
export function createFiberFromPortal(
portal: ReactPortal,
mode: TypeOfMode,
expirationTime: ExpirationTime,
lanes: Lanes,
): Fiber {
const pendingProps = portal.children !== null ? portal.children : [];
const fiber = createFiber(HostPortal, pendingProps, portal.key, mode);
fiber.expirationTime = expirationTime;
fiber.lanes = lanes;
fiber.stateNode = {
containerInfo: portal.containerInfo,
pendingChildren: null, // Used by persistent updates
@ -790,14 +823,14 @@ export function assignFiberPropertiesInDEV(
target.memoizedProps = source.memoizedProps;
target.updateQueue = source.updateQueue;
target.memoizedState = source.memoizedState;
target.dependencies_old = source.dependencies_old;
target.dependencies = source.dependencies;
target.mode = source.mode;
target.effectTag = source.effectTag;
target.nextEffect = source.nextEffect;
target.firstEffect = source.firstEffect;
target.lastEffect = source.lastEffect;
target.expirationTime = source.expirationTime;
target.childExpirationTime = source.childExpirationTime;
target.lanes = source.lanes;
target.childLanes = source.childLanes;
target.alternate = source.alternate;
if (enableProfilerTimer) {
target.actualDuration = source.actualDuration;

2
packages/react-reconciler/src/ReactFiberBeginWork.new.js
View File

@ -2941,7 +2941,7 @@ function bailoutOnAlreadyFinishedWork(
): Fiber | null {
if (current !== null) {
// Reuse previous dependencies
workInProgress.dependencies_new = current.dependencies_new;
workInProgress.dependencies = current.dependencies;
}
if (enableProfilerTimer) {

1549
packages/react-reconciler/src/ReactFiberBeginWork.old.js
View File

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109
packages/react-reconciler/src/ReactFiberClassComponent.old.js
View File

@ -8,16 +8,14 @@
*/
import type {Fiber} from './ReactInternalTypes';
import type {ExpirationTime} from './ReactFiberExpirationTime.old';
import type {Lanes} from './ReactFiberLane';
import type {UpdateQueue} from './ReactUpdateQueue.old';
import type {ReactPriorityLevel} from './ReactInternalTypes';
import * as React from 'react';
import {Update, Snapshot} from './ReactSideEffectTags';
import {
debugRenderPhaseSideEffectsForStrictMode,
disableLegacyContext,
enableDebugTracing,
warnAboutDeprecatedLifecycles,
} from 'shared/ReactFeatureFlags';
import ReactStrictModeWarnings from './ReactStrictModeWarnings.old';
@ -29,7 +27,7 @@ import invariant from 'shared/invariant';
import {REACT_CONTEXT_TYPE, REACT_PROVIDER_TYPE} from 'shared/ReactSymbols';
import {resolveDefaultProps} from './ReactFiberLazyComponent.old';
import {DebugTracingMode, StrictMode} from './ReactTypeOfMode';
import {StrictMode} from './ReactTypeOfMode';
import {
enqueueUpdate,
@ -42,7 +40,7 @@ import {
initializeUpdateQueue,
cloneUpdateQueue,
} from './ReactUpdateQueue.old';
import {NoWork} from './ReactFiberExpirationTime.old';
import {NoLanes} from './ReactFiberLane';
import {
cacheContext,
getMaskedContext,
@ -52,13 +50,11 @@ import {
} from './ReactFiberContext.old';
import {readContext} from './ReactFiberNewContext.old';
import {
requestCurrentTimeForUpdate,
computeExpirationForFiber,
requestEventTime,
requestUpdateLane,
scheduleUpdateOnFiber,
priorityLevelToLabel,
} from './ReactFiberWorkLoop.old';
import {requestCurrentSuspenseConfig} from './ReactFiberSuspenseConfig';
import {logForceUpdateScheduled, logStateUpdateScheduled} from './DebugTracing';
import {disableLogs, reenableLogs} from 'shared/ConsolePatchingDev';
@ -96,7 +92,7 @@ if (__DEV__) {
if (callback === null || typeof callback === 'function') {
return;
}
const key = `${callerName}_${(callback: any)}`;
const key = callerName + '_' + (callback: any);
if (!didWarnOnInvalidCallback.has(key)) {
didWarnOnInvalidCallback.add(key);
console.error(
@ -181,7 +177,7 @@ export function applyDerivedStateFromProps(
// Once the update queue is empty, persist the derived state onto the
// base state.
if (workInProgress.expirationTime === NoWork) {
if (workInProgress.lanes === NoLanes) {
// Queue is always non-null for classes
const updateQueue: UpdateQueue<any> = (workInProgress.updateQueue: any);
updateQueue.baseState = memoizedState;
@ -192,15 +188,11 @@ const classComponentUpdater = {
isMounted,
enqueueSetState(inst, payload, callback) {
const fiber = getInstance(inst);
const currentTime = requestCurrentTimeForUpdate();
const eventTime = requestEventTime();
const suspenseConfig = requestCurrentSuspenseConfig();
const expirationTime = computeExpirationForFiber(
currentTime,
fiber,
suspenseConfig,
);
const lane = requestUpdateLane(fiber, suspenseConfig);
const update = createUpdate(expirationTime, suspenseConfig);
const update = createUpdate(eventTime, lane, suspenseConfig);
update.payload = payload;
if (callback !== undefined && callback !== null) {
if (__DEV__) {
@ -210,31 +202,15 @@ const classComponentUpdater = {
}
enqueueUpdate(fiber, update);
scheduleUpdateOnFiber(fiber, expirationTime);
if (__DEV__) {
if (enableDebugTracing) {
if (fiber.mode & DebugTracingMode) {
const label = priorityLevelToLabel(
((update.priority: any): ReactPriorityLevel),
);
const name = getComponentName(fiber.type) || 'Unknown';
logStateUpdateScheduled(name, label, payload);
}
}
}
scheduleUpdateOnFiber(fiber, lane, eventTime);
},
enqueueReplaceState(inst, payload, callback) {
const fiber = getInstance(inst);
const currentTime = requestCurrentTimeForUpdate();
const eventTime = requestEventTime();
const suspenseConfig = requestCurrentSuspenseConfig();
const expirationTime = computeExpirationForFiber(
currentTime,
fiber,
suspenseConfig,
);
const lane = requestUpdateLane(fiber, suspenseConfig);
const update = createUpdate(expirationTime, suspenseConfig);
const update = createUpdate(eventTime, lane, suspenseConfig);
update.tag = ReplaceState;
update.payload = payload;
@ -246,31 +222,15 @@ const classComponentUpdater = {
}
enqueueUpdate(fiber, update);
scheduleUpdateOnFiber(fiber, expirationTime);
if (__DEV__) {
if (enableDebugTracing) {
if (fiber.mode & DebugTracingMode) {
const label = priorityLevelToLabel(
((update.priority: any): ReactPriorityLevel),
);
const name = getComponentName(fiber.type) || 'Unknown';
logStateUpdateScheduled(name, label, payload);
}
}
}
scheduleUpdateOnFiber(fiber, lane, eventTime);
},
enqueueForceUpdate(inst, callback) {
const fiber = getInstance(inst);
const currentTime = requestCurrentTimeForUpdate();
const eventTime = requestEventTime();
const suspenseConfig = requestCurrentSuspenseConfig();
const expirationTime = computeExpirationForFiber(
currentTime,
fiber,
suspenseConfig,
);
const lane = requestUpdateLane(fiber, suspenseConfig);
const update = createUpdate(expirationTime, suspenseConfig);
const update = createUpdate(eventTime, lane, suspenseConfig);
update.tag = ForceUpdate;
if (callback !== undefined && callback !== null) {
@ -281,19 +241,7 @@ const classComponentUpdater = {
}
enqueueUpdate(fiber, update);
scheduleUpdateOnFiber(fiber, expirationTime);
if (__DEV__) {
if (enableDebugTracing) {
if (fiber.mode & DebugTracingMode) {
const label = priorityLevelToLabel(
((update.priority: any): ReactPriorityLevel),
);
const name = getComponentName(fiber.type) || 'Unknown';
logForceUpdateScheduled(name, label);
}
}
}
scheduleUpdateOnFiber(fiber, lane, eventTime);
},
};
@ -818,7 +766,7 @@ function mountClassInstance(
workInProgress: Fiber,
ctor: any,
newProps: any,
renderExpirationTime: ExpirationTime,
renderLanes: Lanes,
): void {
if (__DEV__) {
checkClassInstance(workInProgress, ctor, newProps);
@ -870,7 +818,7 @@ function mountClassInstance(
}
}
processUpdateQueue(workInProgress, newProps, instance, renderExpirationTime);
processUpdateQueue(workInProgress, newProps, instance, renderLanes);
instance.state = workInProgress.memoizedState;
const getDerivedStateFromProps = ctor.getDerivedStateFromProps;
@ -895,12 +843,7 @@ function mountClassInstance(
callComponentWillMount(workInProgress, instance);
// If we had additional state updates during this life-cycle, let's
// process them now.
processUpdateQueue(
workInProgress,
newProps,
instance,
renderExpirationTime,
);
processUpdateQueue(workInProgress, newProps, instance, renderLanes);
instance.state = workInProgress.memoizedState;
}
@ -913,7 +856,7 @@ function resumeMountClassInstance(
workInProgress: Fiber,
ctor: any,
newProps: any,
renderExpirationTime: ExpirationTime,
renderLanes: Lanes,
): boolean {
const instance = workInProgress.stateNode;
@ -964,7 +907,7 @@ function resumeMountClassInstance(
const oldState = workInProgress.memoizedState;
let newState = (instance.state = oldState);
processUpdateQueue(workInProgress, newProps, instance, renderExpirationTime);
processUpdateQueue(workInProgress, newProps, instance, renderLanes);
newState = workInProgress.memoizedState;
if (
oldProps === newProps &&
@ -1048,7 +991,7 @@ function updateClassInstance(
workInProgress: Fiber,
ctor: any,
newProps: any,
renderExpirationTime: ExpirationTime,
renderLanes: Lanes,
): boolean {
const instance = workInProgress.stateNode;
@ -1105,7 +1048,7 @@ function updateClassInstance(
const oldState = workInProgress.memoizedState;
let newState = (instance.state = oldState);
processUpdateQueue(workInProgress, newProps, instance, renderExpirationTime);
processUpdateQueue(workInProgress, newProps, instance, renderLanes);
newState = workInProgress.memoizedState;
if (

2
packages/react-reconciler/src/ReactFiberCommitWork.new.js
View File

@ -1034,7 +1034,7 @@ function detachFiberMutation(fiber: Fiber) {
// field after effects, see: detachFiberAfterEffects.
fiber.alternate = null;
fiber.child = null;
fiber.dependencies_new = null;
fiber.dependencies = null;
fiber.firstEffect = null;
fiber.lastEffect = null;
fiber.memoizedProps = null;

61
packages/react-reconciler/src/ReactFiberCommitWork.old.js
View File

@ -17,12 +17,13 @@ import type {
} from './ReactFiberHostConfig';
import type {Fiber} from './ReactInternalTypes';
import type {FiberRoot} from './ReactInternalTypes';
import type {ExpirationTime} from './ReactFiberExpirationTime.old';
import type {Lanes} from './ReactFiberLane';
import type {SuspenseState} from './ReactFiberSuspenseComponent.old';
import type {UpdateQueue} from './ReactUpdateQueue.old';
import type {FunctionComponentUpdateQueue} from './ReactFiberHooks.old';
import type {Wakeable} from 'shared/ReactTypes';
import type {ReactPriorityLevel} from './ReactInternalTypes';
import type {OffscreenState} from './ReactFiberOffscreenComponent';
import {unstable_wrap as Schedule_tracing_wrap} from 'scheduler/tracing';
import {
@ -54,6 +55,8 @@ import {
FundamentalComponent,
ScopeComponent,
Block,
OffscreenComponent,
LegacyHiddenComponent,
} from './ReactWorkTags';
import {
invokeGuardedCallback,
@ -460,7 +463,7 @@ function commitLifeCycles(
finishedRoot: FiberRoot,
current: Fiber | null,
finishedWork: Fiber,
committedExpirationTime: ExpirationTime,
committedLanes: Lanes,
): void {
switch (finishedWork.tag) {
case FunctionComponent:
@ -761,6 +764,8 @@ function commitLifeCycles(
case IncompleteClassComponent:
case FundamentalComponent:
case ScopeComponent:
case OffscreenComponent:
case LegacyHiddenComponent:
return;
}
invariant(
@ -791,16 +796,13 @@ function hideOrUnhideAllChildren(finishedWork, isHidden) {
unhideTextInstance(instance, node.memoizedProps);
}
} else if (
node.tag === SuspenseComponent &&
node.memoizedState !== null &&
node.memoizedState.dehydrated === null
(node.tag === OffscreenComponent ||
node.tag === LegacyHiddenComponent) &&
(node.memoizedState: OffscreenState) !== null &&
node !== finishedWork
) {
// Found a nested Suspense component that timed out. Skip over the
// primary child fragment, which should remain hidden.
const fallbackChildFragment: Fiber = (node.child: any).sibling;
fallbackChildFragment.return = node;
node = fallbackChildFragment;
continue;
// Found a nested Offscreen component that is hidden. Don't search
// any deeper. This tree should remain hidden.
} else if (node.child !== null) {
node.child.return = node;
node = node.child;
@ -1032,7 +1034,7 @@ function detachFiberMutation(fiber: Fiber) {
// field after effects, see: detachFiberAfterEffects.
fiber.alternate = null;
fiber.child = null;
fiber.dependencies_old = null;
fiber.dependencies = null;
fiber.firstEffect = null;
fiber.lastEffect = null;
fiber.memoizedProps = null;
@ -1501,6 +1503,10 @@ function commitWork(current: Fiber | null, finishedWork: Fiber): void {
}
break;
}
case OffscreenComponent:
case LegacyHiddenComponent: {
return;
}
}
commitContainer(finishedWork);
@ -1637,6 +1643,13 @@ function commitWork(current: Fiber | null, finishedWork: Fiber): void {
}
break;
}
case OffscreenComponent:
case LegacyHiddenComponent: {
const newState: OffscreenState | null = finishedWork.memoizedState;
const isHidden = newState !== null;
hideOrUnhideAllChildren(finishedWork, isHidden);
return;
}
}
invariant(
false,
@ -1648,18 +1661,22 @@ function commitWork(current: Fiber | null, finishedWork: Fiber): void {
function commitSuspenseComponent(finishedWork: Fiber) {
const newState: SuspenseState | null = finishedWork.memoizedState;
let newDidTimeout;
let primaryChildParent = finishedWork;
if (newState === null) {
newDidTimeout = false;
} else {
newDidTimeout = true;
primaryChildParent = finishedWork.child;
if (newState !== null) {
markCommitTimeOfFallback();
}
if (supportsMutation && primaryChildParent !== null) {
hideOrUnhideAllChildren(primaryChildParent, newDidTimeout);
if (supportsMutation) {
// Hide the Offscreen component that contains the primary children. TODO:
// Ideally, this effect would have been scheduled on the Offscreen fiber
// itself. That's how unhiding works: the Offscreen component schedules an
// effect on itself. However, in this case, the component didn't complete,
// so the fiber was never added to the effect list in the normal path. We
// could have appended it to the effect list in the Suspense component's
// second pass, but doing it this way is less complicated. This would be
// simpler if we got rid of the effect list and traversed the tree, like
// we're planning to do.
const primaryChildParent: Fiber = (finishedWork.child: any);
hideOrUnhideAllChildren(primaryChildParent, true);
}
}
if (enableSuspenseCallback && newState !== null) {

67
packages/react-reconciler/src/ReactFiberCompleteWork.old.js
View File

@ -8,7 +8,7 @@
*/
import type {Fiber} from './ReactInternalTypes';
import type {ExpirationTime} from './ReactFiberExpirationTime.old';
import type {Lanes} from './ReactFiberLane';
import type {
ReactFundamentalComponentInstance,
ReactScopeInstance,
@ -26,6 +26,8 @@ import type {
SuspenseListRenderState,
} from './ReactFiberSuspenseComponent.old';
import type {SuspenseContext} from './ReactFiberSuspenseContext.old';
import type {OffscreenState} from './ReactFiberOffscreenComponent';
import {resetWorkInProgressVersions as resetMutableSourceWorkInProgressVersions} from './ReactMutableSource.old';
import {now} from './SchedulerWithReactIntegration.old';
@ -53,6 +55,8 @@ import {
FundamentalComponent,
ScopeComponent,
Block,
OffscreenComponent,
LegacyHiddenComponent,
} from './ReactWorkTags';
import {NoMode, BlockingMode, ProfileMode} from './ReactTypeOfMode';
import {
@ -60,7 +64,6 @@ import {
Update,
NoEffect,
DidCapture,
Deletion,
Snapshot,
} from './ReactSideEffectTags';
import invariant from 'shared/invariant';
@ -132,9 +135,10 @@ import {
renderDidSuspend,
renderDidSuspendDelayIfPossible,
renderHasNotSuspendedYet,
popRenderLanes,
} from './ReactFiberWorkLoop.old';
import {createFundamentalStateInstance} from './ReactFiberFundamental.old';
import {Never} from './ReactFiberExpirationTime.old';
import {OffscreenLane} from './ReactFiberLane';
import {resetChildFibers} from './ReactChildFiber.old';
import {updateDeprecatedEventListeners} from './ReactFiberDeprecatedEvents.old';
import {createScopeInstance} from './ReactFiberScope.old';
@ -648,7 +652,7 @@ function cutOffTailIfNeeded(
function completeWork(
current: Fiber | null,
workInProgress: Fiber,
renderExpirationTime: ExpirationTime,
renderLanes: Lanes,
): Fiber | null {
const newProps = workInProgress.pendingProps;
@ -861,7 +865,7 @@ function completeWork(
);
prepareToHydrateHostSuspenseInstance(workInProgress);
if (enableSchedulerTracing) {
markSpawnedWork(Never);
markSpawnedWork(OffscreenLane);
}
return null;
} else {
@ -886,14 +890,14 @@ function completeWork(
if ((workInProgress.effectTag & DidCapture) !== NoEffect) {
// Something suspended. Re-render with the fallback children.
workInProgress.expirationTime = renderExpirationTime;
workInProgress.lanes = renderLanes;
// Do not reset the effect list.
if (
enableProfilerTimer &&
(workInProgress.mode & ProfileMode) !== NoMode
) {
transferActualDuration(workInProgress);
}
// Do not reset the effect list.
return workInProgress;
}
@ -906,26 +910,6 @@ function completeWork(
} else {
const prevState: null | SuspenseState = current.memoizedState;
prevDidTimeout = prevState !== null;
if (!nextDidTimeout && prevState !== null) {
// We just switched from the fallback to the normal children.
// Delete the fallback.
// TODO: Would it be better to store the fallback fragment on
// the stateNode during the begin phase?
const currentFallbackChild: Fiber | null = (current.child: any)
.sibling;
if (currentFallbackChild !== null) {
// Deletions go at the beginning of the return fiber's effect list
const first = workInProgress.firstEffect;
if (first !== null) {
workInProgress.firstEffect = currentFallbackChild;
currentFallbackChild.nextEffect = first;
} else {
workInProgress.firstEffect = workInProgress.lastEffect = currentFallbackChild;
currentFallbackChild.nextEffect = null;
}
currentFallbackChild.effectTag = Deletion;
}
}
}
if (nextDidTimeout && !prevDidTimeout) {
@ -1081,7 +1065,7 @@ function completeWork(
}
workInProgress.lastEffect = renderState.lastEffect;
// Reset the child fibers to their original state.
resetChildFibers(workInProgress, renderExpirationTime);
resetChildFibers(workInProgress, renderLanes);
// Set up the Suspense Context to force suspense and immediately
// rerender the children.
@ -1092,7 +1076,6 @@ function completeWork(
ForceSuspenseFallback,
),
);
return workInProgress.child;
}
row = row.sibling;
@ -1143,7 +1126,7 @@ function completeWork(
// the expiration.
now() * 2 - renderState.renderingStartTime >
renderState.tailExpiration &&
renderExpirationTime > Never
renderLanes !== OffscreenLane
) {
// We have now passed our CPU deadline and we'll just give up further
// attempts to render the main content and only render fallbacks.
@ -1158,11 +1141,9 @@ function completeWork(
// them, then they really have the same priority as this render.
// So we'll pick it back up the very next render pass once we've had
// an opportunity to yield for paint.
const nextPriority = renderExpirationTime - 1;
workInProgress.expirationTime = workInProgress.childExpirationTime = nextPriority;
workInProgress.lanes = renderLanes;
if (enableSchedulerTracing) {
markSpawnedWork(nextPriority);
markSpawnedWork(renderLanes);
}
}
}
@ -1326,6 +1307,24 @@ function completeWork(
return null;
}
break;
case OffscreenComponent:
case LegacyHiddenComponent: {
popRenderLanes(workInProgress);
if (current !== null) {
const nextState: OffscreenState | null = workInProgress.memoizedState;
const prevState: OffscreenState | null = current.memoizedState;
const prevIsHidden = prevState !== null;
const nextIsHidden = nextState !== null;
if (
prevIsHidden !== nextIsHidden &&
newProps.mode !== 'unstable-defer-without-hiding'
) {
workInProgress.effectTag |= Update;
}
}
return null;
}
}
invariant(
false,

6
packages/react-reconciler/src/ReactFiberDeprecatedEvents.new.js
View File

@ -150,10 +150,10 @@ export function updateDeprecatedEventListeners(
rootContainerInstance: null | Container,
): void {
const visistedResponders = new Set();
let dependencies = fiber.dependencies_new;
let dependencies = fiber.dependencies;
if (listeners != null) {
if (dependencies === null) {
dependencies = fiber.dependencies_new = {
dependencies = fiber.dependencies = {
lanes: NoLanes,
firstContext: null,
responders: new Map(),
@ -218,7 +218,7 @@ export function createDeprecatedResponderListener(
}
export function unmountDeprecatedResponderListeners(fiber: Fiber) {
const dependencies = fiber.dependencies_new;
const dependencies = fiber.dependencies;
if (dependencies !== null) {
const respondersMap = dependencies.responders;

10
packages/react-reconciler/src/ReactFiberDeprecatedEvents.old.js
View File

@ -19,7 +19,7 @@ import {
DEPRECATED_mountResponderInstance,
DEPRECATED_unmountResponderInstance,
} from './ReactFiberHostConfig';
import {NoWork} from './ReactFiberExpirationTime.old';
import {NoLanes} from './ReactFiberLane';
import {REACT_RESPONDER_TYPE} from 'shared/ReactSymbols';
@ -150,11 +150,11 @@ export function updateDeprecatedEventListeners(
rootContainerInstance: null | Container,
): void {
const visistedResponders = new Set();
let dependencies = fiber.dependencies_old;
let dependencies = fiber.dependencies;
if (listeners != null) {
if (dependencies === null) {
dependencies = fiber.dependencies_old = {
expirationTime: NoWork,
dependencies = fiber.dependencies = {
lanes: NoLanes,
firstContext: null,
responders: new Map(),
};
@ -218,7 +218,7 @@ export function createDeprecatedResponderListener(
}
export function unmountDeprecatedResponderListeners(fiber: Fiber) {
const dependencies = fiber.dependencies_old;
const dependencies = fiber.dependencies;
if (dependencies !== null) {
const respondersMap = dependencies.responders;

16
packages/react-reconciler/src/ReactFiberDevToolsHook.old.js
View File

@ -8,12 +8,8 @@
*/
import {enableProfilerTimer} from 'shared/ReactFeatureFlags';
import {getCurrentTime} from './ReactFiberWorkLoop.old';
import {inferPriorityFromExpirationTime} from './ReactFiberExpirationTime.old';
import type {Fiber} from './ReactInternalTypes';
import type {FiberRoot} from './ReactInternalTypes';
import type {ExpirationTime} from './ReactFiberExpirationTime.old';
import type {Fiber, FiberRoot, ReactPriorityLevel} from './ReactInternalTypes';
import type {ReactNodeList} from 'shared/ReactTypes';
import {DidCapture} from './ReactSideEffectTags';
@ -82,16 +78,14 @@ export function onScheduleRoot(root: FiberRoot, children: ReactNodeList) {
}
}
export function onCommitRoot(root: FiberRoot, expirationTime: ExpirationTime) {
export function onCommitRoot(
root: FiberRoot,
priorityLevel: ReactPriorityLevel,
) {
if (injectedHook && typeof injectedHook.onCommitFiberRoot === 'function') {
try {
const didError = (root.current.effectTag & DidCapture) === DidCapture;
if (enableProfilerTimer) {
const currentTime = getCurrentTime();
const priorityLevel = inferPriorityFromExpirationTime(
currentTime,
expirationTime,
);
injectedHook.onCommitFiberRoot(
rendererID,
root,

147
packages/react-reconciler/src/ReactFiberExpirationTime.old.js
View File

@ -1,147 +0,0 @@
/**
* 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 {ReactPriorityLevel} from './ReactInternalTypes';
import {MAX_SIGNED_31_BIT_INT} from './MaxInts';
import {
ImmediatePriority,
UserBlockingPriority,
NormalPriority,
IdlePriority,
} from './SchedulerWithReactIntegration.old';
export type ExpirationTime = number;
export const NoWork = 0;
// TODO: Think of a better name for Never. The key difference with Idle is that
// Never work can be committed in an inconsistent state without tearing the UI.
// The main example is offscreen content, like a hidden subtree. So one possible
// name is Offscreen. However, it also includes dehydrated Suspense boundaries,
// which are inconsistent in the sense that they haven't finished yet, but
// aren't visibly inconsistent because the server rendered HTML matches what the
// hydrated tree would look like.
export const Never = 1;
// Idle is slightly higher priority than Never. It must completely finish in
// order to be consistent.
export const Idle = 2;
// Continuous Hydration is slightly higher than Idle and is used to increase
// priority of hover targets.
export const ContinuousHydration = 3;
export const Sync = MAX_SIGNED_31_BIT_INT;
export const Batched = Sync - 1;
const UNIT_SIZE = 10;
const MAGIC_NUMBER_OFFSET = Batched - 1;
// 1 unit of expiration time represents 10ms.
export function msToExpirationTime(ms: number): ExpirationTime {
// Always subtract from the offset so that we don't clash with the magic number for NoWork.
return MAGIC_NUMBER_OFFSET - ((ms / UNIT_SIZE) | 0);
}
export function expirationTimeToMs(expirationTime: ExpirationTime): number {
return (MAGIC_NUMBER_OFFSET - expirationTime) * UNIT_SIZE;
}
function ceiling(num: number, precision: number): number {
return (((num / precision) | 0) + 1) * precision;
}
function computeExpirationBucket(
currentTime,
expirationInMs,
bucketSizeMs,
): ExpirationTime {
return (
MAGIC_NUMBER_OFFSET -
ceiling(
MAGIC_NUMBER_OFFSET - currentTime + expirationInMs / UNIT_SIZE,
bucketSizeMs / UNIT_SIZE,
)
);
}
// TODO: This corresponds to Scheduler's NormalPriority, not LowPriority. Update
// the names to reflect.
export const LOW_PRIORITY_EXPIRATION = 5000;
export const LOW_PRIORITY_BATCH_SIZE = 250;
export function computeAsyncExpiration(
currentTime: ExpirationTime,
): ExpirationTime {
return computeExpirationBucket(
currentTime,
LOW_PRIORITY_EXPIRATION,
LOW_PRIORITY_BATCH_SIZE,
);
}
export function computeSuspenseExpiration(
currentTime: ExpirationTime,
timeoutMs: number,
): ExpirationTime {
// TODO: Should we warn if timeoutMs is lower than the normal pri expiration time?
return computeExpirationBucket(
currentTime,
timeoutMs,
LOW_PRIORITY_BATCH_SIZE,
);
}
// We intentionally set a higher expiration time for interactive updates in
// dev than in production.
//
// If the main thread is being blocked so long that you hit the expiration,
// it's a problem that could be solved with better scheduling.
//
// People will be more likely to notice this and fix it with the long
// expiration time in development.
//
// In production we opt for better UX at the risk of masking scheduling
// problems, by expiring fast.
export const HIGH_PRIORITY_EXPIRATION = __DEV__ ? 500 : 150;
export const HIGH_PRIORITY_BATCH_SIZE = 100;
export function computeInteractiveExpiration(currentTime: ExpirationTime) {
return computeExpirationBucket(
currentTime,
HIGH_PRIORITY_EXPIRATION,
HIGH_PRIORITY_BATCH_SIZE,
);
}
export function inferPriorityFromExpirationTime(
currentTime: ExpirationTime,
expirationTime: ExpirationTime,
): ReactPriorityLevel {
if (expirationTime === Sync) {
return ImmediatePriority;
}
if (expirationTime === Never || expirationTime === Idle) {
return IdlePriority;
}
const msUntil =
expirationTimeToMs(expirationTime) - expirationTimeToMs(currentTime);
if (msUntil <= 0) {
return ImmediatePriority;
}
if (msUntil <= HIGH_PRIORITY_EXPIRATION + HIGH_PRIORITY_BATCH_SIZE) {
return UserBlockingPriority;
}
if (msUntil <= LOW_PRIORITY_EXPIRATION + LOW_PRIORITY_BATCH_SIZE) {
return NormalPriority;
}
// TODO: Handle LowPriority
// Assume anything lower has idle priority
return IdlePriority;
}

181
packages/react-reconciler/src/ReactFiberHooks.old.js
View File

@ -16,7 +16,7 @@ import type {
ReactEventResponderListener,
} from 'shared/ReactTypes';
import type {Fiber, Dispatcher} from './ReactInternalTypes';
import type {ExpirationTime} from './ReactFiberExpirationTime.old';
import type {Lanes, Lane} from './ReactFiberLane';
import type {HookEffectTag} from './ReactHookEffectTags';
import type {SuspenseConfig} from './ReactFiberSuspenseConfig';
import type {ReactPriorityLevel} from './ReactInternalTypes';
@ -24,18 +24,18 @@ import type {FiberRoot} from './ReactInternalTypes';
import type {OpaqueIDType} from './ReactFiberHostConfig';
import ReactSharedInternals from 'shared/ReactSharedInternals';
import {
enableDebugTracing,
enableNewReconciler,
} from 'shared/ReactFeatureFlags';
import {enableNewReconciler} from 'shared/ReactFeatureFlags';
import {markRootExpiredAtTime} from './ReactFiberRoot.old';
import {NoMode, BlockingMode, DebugTracingMode} from './ReactTypeOfMode';
import {NoMode, BlockingMode} from './ReactTypeOfMode';
import {
inferPriorityFromExpirationTime,
NoWork,
Sync,
} from './ReactFiberExpirationTime.old';
NoLane,
NoLanes,
isSubsetOfLanes,
mergeLanes,
removeLanes,
markRootEntangled,
markRootMutableRead,
} from './ReactFiberLane';
import {readContext} from './ReactFiberNewContext.old';
import {createDeprecatedResponderListener} from './ReactFiberDeprecatedEvents.old';
import {
@ -50,14 +50,13 @@ import {
import {
getWorkInProgressRoot,
scheduleUpdateOnFiber,
computeExpirationForFiber,
requestCurrentTimeForUpdate,
requestUpdateLane,
requestEventTime,
warnIfNotCurrentlyActingEffectsInDEV,
warnIfNotCurrentlyActingUpdatesInDev,
warnIfNotScopedWithMatchingAct,
markRenderEventTimeAndConfig,
markUnprocessedUpdateTime,
priorityLevelToLabel,
markSkippedUpdateLanes,
} from './ReactFiberWorkLoop.old';
import invariant from 'shared/invariant';
@ -78,20 +77,20 @@ import {
makeOpaqueHydratingObject,
} from './ReactFiberHostConfig';
import {
getLastPendingExpirationTime,
getWorkInProgressVersion,
markSourceAsDirty,
setPendingExpirationTime,
setWorkInProgressVersion,
warnAboutMultipleRenderersDEV,
} from './ReactMutableSource.old';
import {getIsRendering} from './ReactCurrentFiber';
import {logStateUpdateScheduled} from './DebugTracing';
const {ReactCurrentDispatcher, ReactCurrentBatchConfig} = ReactSharedInternals;
type Update<S, A> = {|
expirationTime: ExpirationTime,
// TODO: Temporary field. Will remove this by storing a map of
// transition -> start time on the root.
eventTime: number,
lane: Lane,
suspenseConfig: null | SuspenseConfig,
action: A,
eagerReducer: ((S, A) => S) | null,
@ -158,7 +157,7 @@ type BasicStateAction<S> = (S => S) | S;
type Dispatch<A> = A => void;
// These are set right before calling the component.
let renderExpirationTime: ExpirationTime = NoWork;
let renderLanes: Lanes = NoLanes;
// The work-in-progress fiber. I've named it differently to distinguish it from
// the work-in-progress hook.
let currentlyRenderingFiber: Fiber = (null: any);
@ -349,9 +348,9 @@ export function renderWithHooks<Props, SecondArg>(
Component: (p: Props, arg: SecondArg) => any,
props: Props,
secondArg: SecondArg,
nextRenderExpirationTime: ExpirationTime,
nextRenderLanes: Lanes,
): any {
renderExpirationTime = nextRenderExpirationTime;
renderLanes = nextRenderLanes;
currentlyRenderingFiber = workInProgress;
if (__DEV__) {
@ -367,7 +366,7 @@ export function renderWithHooks<Props, SecondArg>(
workInProgress.memoizedState = null;
workInProgress.updateQueue = null;
workInProgress.expirationTime = NoWork;
workInProgress.lanes = NoLanes;
// The following should have already been reset
// currentHook = null;
@ -456,7 +455,7 @@ export function renderWithHooks<Props, SecondArg>(
const didRenderTooFewHooks =
currentHook !== null && currentHook.next !== null;
renderExpirationTime = NoWork;
renderLanes = NoLanes;
currentlyRenderingFiber = (null: any);
currentHook = null;
@ -482,13 +481,11 @@ export function renderWithHooks<Props, SecondArg>(
export function bailoutHooks(
current: Fiber,
workInProgress: Fiber,
expirationTime: ExpirationTime,
lanes: Lanes,
) {
workInProgress.updateQueue = current.updateQueue;
workInProgress.effectTag &= ~(PassiveEffect | UpdateEffect);
if (current.expirationTime <= expirationTime) {
current.expirationTime = NoWork;
}
current.lanes = removeLanes(current.lanes, lanes);
}
export function resetHooksAfterThrow(): void {
@ -516,7 +513,7 @@ export function resetHooksAfterThrow(): void {
didScheduleRenderPhaseUpdate = false;
}
renderExpirationTime = NoWork;
renderLanes = NoLanes;
currentlyRenderingFiber = (null: any);
currentHook = null;
@ -709,14 +706,17 @@ function updateReducer<S, I, A>(
let newBaseQueueLast = null;
let update = first;
do {
const updateExpirationTime = update.expirationTime;
if (updateExpirationTime < renderExpirationTime) {
const suspenseConfig = update.suspenseConfig;
const updateLane = update.lane;
const updateEventTime = update.eventTime;
if (!isSubsetOfLanes(renderLanes, updateLane)) {
// Priority is insufficient. Skip this update. If this is the first
// skipped update, the previous update/state is the new base
// update/state.
const clone: Update<S, A> = {
expirationTime: update.expirationTime,
suspenseConfig: update.suspenseConfig,
eventTime: updateEventTime,
lane: updateLane,
suspenseConfig: suspenseConfig,
action: update.action,
eagerReducer: update.eagerReducer,
eagerState: update.eagerState,
@ -729,16 +729,23 @@ function updateReducer<S, I, A>(
newBaseQueueLast = newBaseQueueLast.next = clone;
}
// Update the remaining priority in the queue.
if (updateExpirationTime > currentlyRenderingFiber.expirationTime) {
currentlyRenderingFiber.expirationTime = updateExpirationTime;
markUnprocessedUpdateTime(updateExpirationTime);
}
// TODO: Don't need to accumulate this. Instead, we can remove
// renderLanes from the original lanes.
currentlyRenderingFiber.lanes = mergeLanes(
currentlyRenderingFiber.lanes,
updateLane,
);
markSkippedUpdateLanes(updateLane);
} else {
// This update does have sufficient priority.
if (newBaseQueueLast !== null) {
const clone: Update<S, A> = {
expirationTime: Sync, // This update is going to be committed so we never want uncommit it.
eventTime: updateEventTime,
// This update is going to be committed so we never want uncommit
// it. Using NoLane works because 0 is a subset of all bitmasks, so
// this will never be skipped by the check above.
lane: NoLane,
suspenseConfig: update.suspenseConfig,
action: update.action,
eagerReducer: update.eagerReducer,
@ -754,10 +761,7 @@ function updateReducer<S, I, A>(
// TODO: We should skip this update if it was already committed but currently
// we have no way of detecting the difference between a committed and suspended
// update here.
markRenderEventTimeAndConfig(
updateExpirationTime,
update.suspenseConfig,
);
markRenderEventTimeAndConfig(updateEventTime, suspenseConfig);
// Process this update.
if (update.eagerReducer === reducer) {
@ -878,18 +882,28 @@ function readFromUnsubcribedMutableSource<Source, Snapshot>(
// we can use it alone to determine if we can safely read from the source.
const currentRenderVersion = getWorkInProgressVersion(source);
if (currentRenderVersion !== null) {
// It's safe to read if the store hasn't been mutated since the last time
// we read something.
isSafeToReadFromSource = currentRenderVersion === version;
} else {
// If there's no version, then we should fallback to checking the update time.
const pendingExpirationTime = getLastPendingExpirationTime(root);
if (pendingExpirationTime === NoWork) {
isSafeToReadFromSource = true;
} else {
// If the source has pending updates, we can use the current render's expiration
// time to determine if it's safe to read again from the source.
isSafeToReadFromSource = pendingExpirationTime >= renderExpirationTime;
}
// If there's no version, then this is the first time we've read from the
// source during the current render pass, so we need to do a bit more work.
// What we need to determine is if there are any hooks that already
// subscribed to the source, and if so, whether there are any pending
// mutations that haven't been synchronized yet.
//
// If there are no pending mutations, then `root.mutableReadLanes` will be
// empty, and we know we can safely read.
//
// If there *are* pending mutations, we may still be able to safely read
// if the currently rendering lanes are inclusive of the pending mutation
// lanes, since that guarantees that the value we're about to read from
// the source is consistent with the values that we read during the most
// recent mutation.
isSafeToReadFromSource = isSubsetOfLanes(
renderLanes,
root.mutableReadLanes,
);
if (isSafeToReadFromSource) {
// If it's safe to read from this source during the current render,
@ -999,22 +1013,14 @@ function useMutableSource<Source, Snapshot>(
if (!is(snapshot, maybeNewSnapshot)) {
setSnapshot(maybeNewSnapshot);
const currentTime = requestCurrentTimeForUpdate();
const suspenseConfig = requestCurrentSuspenseConfig();
const expirationTime = computeExpirationForFiber(
currentTime,
fiber,
suspenseConfig,
);
setPendingExpirationTime(root, expirationTime);
const lane = requestUpdateLane(fiber, suspenseConfig);
markRootMutableRead(root, lane);
}
// If the source mutated between render and now,
// there may be state updates already scheduled from the old getSnapshot.
// Those updates should not commit without this value.
// There is no mechanism currently to associate these updates though,
// so for now we fall back to synchronously flushing all pending updates.
// TODO: Improve this later.
markRootExpiredAtTime(root, getLastPendingExpirationTime(root));
// there may be state updates already scheduled from the old source.
// Entangle the updates so that they render in the same batch.
markRootEntangled(root, root.mutableReadLanes);
}
}, [getSnapshot, source, subscribe]);
@ -1028,15 +1034,10 @@ function useMutableSource<Source, Snapshot>(
latestSetSnapshot(latestGetSnapshot(source._source));
// Record a pending mutable source update with the same expiration time.
const currentTime = requestCurrentTimeForUpdate();
const suspenseConfig = requestCurrentSuspenseConfig();
const expirationTime = computeExpirationForFiber(
currentTime,
fiber,
suspenseConfig,
);
const lane = requestUpdateLane(fiber, suspenseConfig);
setPendingExpirationTime(root, expirationTime);
markRootMutableRead(root, lane);
} catch (error) {
// A selector might throw after a source mutation.
// e.g. it might try to read from a part of the store that no longer exists.
@ -1653,16 +1654,13 @@ function dispatchAction<S, A>(
}
}
const currentTime = requestCurrentTimeForUpdate();
const eventTime = requestEventTime();
const suspenseConfig = requestCurrentSuspenseConfig();
const expirationTime = computeExpirationForFiber(
currentTime,
fiber,
suspenseConfig,
);
const lane = requestUpdateLane(fiber, suspenseConfig);
const update: Update<S, A> = {
expirationTime,
eventTime,
lane,
suspenseConfig,
action,
eagerReducer: null,
@ -1670,10 +1668,6 @@ function dispatchAction<S, A>(
next: (null: any),
};
if (__DEV__) {
update.priority = getCurrentPriorityLevel();
}
// Append the update to the end of the list.
const pending = queue.pending;
if (pending === null) {
@ -1694,11 +1688,10 @@ function dispatchAction<S, A>(
// queue -> linked list of updates. After this render pass, we'll restart
// and apply the stashed updates on top of the work-in-progress hook.
didScheduleRenderPhaseUpdateDuringThisPass = didScheduleRenderPhaseUpdate = true;
update.expirationTime = renderExpirationTime;
} else {
if (
fiber.expirationTime === NoWork &&
(alternate === null || alternate.expirationTime === NoWork)
fiber.lanes === NoLanes &&
(alternate === null || alternate.lanes === NoLanes)
) {
// The queue is currently empty, which means we can eagerly compute the
// next state before entering the render phase. If the new state is the
@ -1742,21 +1735,7 @@ function dispatchAction<S, A>(
warnIfNotCurrentlyActingUpdatesInDev(fiber);
}
}
scheduleUpdateOnFiber(fiber, expirationTime);
}
if (__DEV__) {
if (enableDebugTracing) {
if (fiber.mode & DebugTracingMode) {
const priorityLevel = inferPriorityFromExpirationTime(
currentTime,
expirationTime,
);
const label = priorityLevelToLabel(priorityLevel);
const name = getComponentName(fiber.type) || 'Unknown';
logStateUpdateScheduled(name, label, action);
}
}
scheduleUpdateOnFiber(fiber, lane, eventTime);
}
}

4
packages/react-reconciler/src/ReactFiberHotReloading.old.js
View File

@ -20,7 +20,7 @@ import {
} from './ReactFiberWorkLoop.old';
import {updateContainer} from './ReactFiberReconciler.old';
import {emptyContextObject} from './ReactFiberContext.old';
import {Sync} from './ReactFiberExpirationTime.old';
import {SyncLane, NoTimestamp} from './ReactFiberLane';
import {
ClassComponent,
FunctionComponent,
@ -319,7 +319,7 @@ function scheduleFibersWithFamiliesRecursively(
fiber._debugNeedsRemount = true;
}
if (needsRemount || needsRender) {
scheduleUpdateOnFiber(fiber, Sync);
scheduleUpdateOnFiber(fiber, SyncLane, NoTimestamp);
}
if (child !== null && !needsRemount) {
scheduleFibersWithFamiliesRecursively(

5
packages/react-reconciler/src/ReactFiberHydrationContext.old.js
View File

@ -55,7 +55,7 @@ import {
didNotFindHydratableSuspenseInstance,
} from './ReactFiberHostConfig';
import {enableSuspenseServerRenderer} from 'shared/ReactFeatureFlags';
import {Never, NoWork} from './ReactFiberExpirationTime.old';
import {OffscreenLane} from './ReactFiberLane';
// The deepest Fiber on the stack involved in a hydration context.
// This may have been an insertion or a hydration.
@ -231,8 +231,7 @@ function tryHydrate(fiber, nextInstance) {
if (suspenseInstance !== null) {
const suspenseState: SuspenseState = {
dehydrated: suspenseInstance,
baseTime: NoWork,
retryTime: Never,
retryLane: OffscreenLane,
};
fiber.memoizedState = suspenseState;
// Store the dehydrated fragment as a child fiber.

6
packages/react-reconciler/src/ReactFiberNewContext.new.js
View File

@ -194,7 +194,7 @@ export function propagateContextChange(
let nextFiber;
// Visit this fiber.
const list = fiber.dependencies_new;
const list = fiber.dependencies;
if (list !== null) {
nextFiber = fiber.child;
@ -303,7 +303,7 @@ export function prepareToReadContext(
lastContextDependency = null;
lastContextWithAllBitsObserved = null;
const dependencies = workInProgress.dependencies_new;
const dependencies = workInProgress.dependencies;
if (dependencies !== null) {
const firstContext = dependencies.firstContext;
if (firstContext !== null) {
@ -368,7 +368,7 @@ export function readContext<T>(
// This is the first dependency for this component. Create a new list.
lastContextDependency = contextItem;
currentlyRenderingFiber.dependencies_new = {
currentlyRenderingFiber.dependencies = {
lanes: NoLanes,
firstContext: contextItem,
responders: null,

87
packages/react-reconciler/src/ReactFiberNewContext.old.js
View File

@ -10,7 +10,7 @@
import type {ReactContext} from 'shared/ReactTypes';
import type {Fiber, ContextDependency} from './ReactInternalTypes';
import type {StackCursor} from './ReactFiberStack.old';
import type {ExpirationTime} from './ReactFiberExpirationTime.old';
import type {Lanes} from './ReactFiberLane';
import {isPrimaryRenderer} from './ReactFiberHostConfig';
import {createCursor, push, pop} from './ReactFiberStack.old';
@ -20,11 +20,18 @@ import {
ClassComponent,
DehydratedFragment,
} from './ReactWorkTags';
import {
NoLanes,
NoTimestamp,
isSubsetOfLanes,
includesSomeLane,
mergeLanes,
pickArbitraryLane,
} from './ReactFiberLane';
import invariant from 'shared/invariant';
import is from 'shared/objectIs';
import {createUpdate, enqueueUpdate, ForceUpdate} from './ReactUpdateQueue.old';
import {NoWork} from './ReactFiberExpirationTime.old';
import {markWorkInProgressReceivedUpdate} from './ReactFiberBeginWork.old';
import {enableSuspenseServerRenderer} from 'shared/ReactFeatureFlags';
@ -147,26 +154,22 @@ export function calculateChangedBits<T>(
export function scheduleWorkOnParentPath(
parent: Fiber | null,
renderExpirationTime: ExpirationTime,
renderLanes: Lanes,
) {
// Update the child expiration time of all the ancestors, including
// the alternates.
// Update the child lanes of all the ancestors, including the alternates.
let node = parent;
while (node !== null) {
const alternate = node.alternate;
if (node.childExpirationTime < renderExpirationTime) {
node.childExpirationTime = renderExpirationTime;
if (
alternate !== null &&
alternate.childExpirationTime < renderExpirationTime
) {
alternate.childExpirationTime = renderExpirationTime;
if (!isSubsetOfLanes(node.childLanes, renderLanes)) {
node.childLanes = mergeLanes(node.childLanes, renderLanes);
if (alternate !== null) {
alternate.childLanes = mergeLanes(alternate.childLanes, renderLanes);
}
} else if (
alternate !== null &&
alternate.childExpirationTime < renderExpirationTime
!isSubsetOfLanes(alternate.childLanes, renderLanes)
) {
alternate.childExpirationTime = renderExpirationTime;
alternate.childLanes = mergeLanes(alternate.childLanes, renderLanes);
} else {
// Neither alternate was updated, which means the rest of the
// ancestor path already has sufficient priority.
@ -180,7 +183,7 @@ export function propagateContextChange(
workInProgress: Fiber,
context: ReactContext<mixed>,
changedBits: number,
renderExpirationTime: ExpirationTime,
renderLanes: Lanes,
): void {
let fiber = workInProgress.child;
if (fiber !== null) {
@ -191,7 +194,7 @@ export function propagateContextChange(
let nextFiber;
// Visit this fiber.
const list = fiber.dependencies_old;
const list = fiber.dependencies;
if (list !== null) {
nextFiber = fiber.child;
@ -206,7 +209,11 @@ export function propagateContextChange(
if (fiber.tag === ClassComponent) {
// Schedule a force update on the work-in-progress.
const update = createUpdate(renderExpirationTime, null);
const update = createUpdate(
NoTimestamp,
pickArbitraryLane(renderLanes),
null,
);
update.tag = ForceUpdate;
// TODO: Because we don't have a work-in-progress, this will add the
// update to the current fiber, too, which means it will persist even if
@ -214,24 +221,15 @@ export function propagateContextChange(
// worth fixing.
enqueueUpdate(fiber, update);
}
if (fiber.expirationTime < renderExpirationTime) {
fiber.expirationTime = renderExpirationTime;
}
fiber.lanes = mergeLanes(fiber.lanes, renderLanes);
const alternate = fiber.alternate;
if (
alternate !== null &&
alternate.expirationTime < renderExpirationTime
) {
alternate.expirationTime = renderExpirationTime;
if (alternate !== null) {
alternate.lanes = mergeLanes(alternate.lanes, renderLanes);
}
scheduleWorkOnParentPath(fiber.return, renderLanes);
scheduleWorkOnParentPath(fiber.return, renderExpirationTime);
// Mark the expiration time on the list, too.
if (list.expirationTime < renderExpirationTime) {
list.expirationTime = renderExpirationTime;
}
// Mark the updated lanes on the list, too.
list.lanes = mergeLanes(list.lanes, renderLanes);
// Since we already found a match, we can stop traversing the
// dependency list.
@ -254,21 +252,16 @@ export function propagateContextChange(
parentSuspense !== null,
'We just came from a parent so we must have had a parent. This is a bug in React.',
);
if (parentSuspense.expirationTime < renderExpirationTime) {
parentSuspense.expirationTime = renderExpirationTime;
}
parentSuspense.lanes = mergeLanes(parentSuspense.lanes, renderLanes);
const alternate = parentSuspense.alternate;
if (
alternate !== null &&
alternate.expirationTime < renderExpirationTime
) {
alternate.expirationTime = renderExpirationTime;
if (alternate !== null) {
alternate.lanes = mergeLanes(alternate.lanes, renderLanes);
}
// This is intentionally passing this fiber as the parent
// because we want to schedule this fiber as having work
// on its children. We'll use the childExpirationTime on
// on its children. We'll use the childLanes on
// this fiber to indicate that a context has changed.
scheduleWorkOnParentPath(parentSuspense, renderExpirationTime);
scheduleWorkOnParentPath(parentSuspense, renderLanes);
nextFiber = fiber.sibling;
} else {
// Traverse down.
@ -304,17 +297,17 @@ export function propagateContextChange(
export function prepareToReadContext(
workInProgress: Fiber,
renderExpirationTime: ExpirationTime,
renderLanes: Lanes,
): void {
currentlyRenderingFiber = workInProgress;
lastContextDependency = null;
lastContextWithAllBitsObserved = null;
const dependencies = workInProgress.dependencies_old;
const dependencies = workInProgress.dependencies;
if (dependencies !== null) {
const firstContext = dependencies.firstContext;
if (firstContext !== null) {
if (dependencies.expirationTime >= renderExpirationTime) {
if (includesSomeLane(dependencies.lanes, renderLanes)) {
// Context list has a pending update. Mark that this fiber performed work.
markWorkInProgressReceivedUpdate();
}
@ -375,8 +368,8 @@ export function readContext<T>(
// This is the first dependency for this component. Create a new list.
lastContextDependency = contextItem;
currentlyRenderingFiber.dependencies_old = {
expirationTime: NoWork,
currentlyRenderingFiber.dependencies = {
lanes: NoLanes,
firstContext: contextItem,
responders: null,
};

89
packages/react-reconciler/src/ReactFiberReconciler.old.js
View File

@ -19,7 +19,7 @@ import type {
import type {RendererInspectionConfig} from './ReactFiberHostConfig';
import {FundamentalComponent} from './ReactWorkTags';
import type {ReactNodeList} from 'shared/ReactTypes';
import type {ExpirationTime} from './ReactFiberExpirationTime.old';
import type {Lane} from './ReactFiberLane';
import type {SuspenseState} from './ReactFiberSuspenseComponent.old';
import {
@ -46,8 +46,8 @@ import {
import {createFiberRoot} from './ReactFiberRoot.old';
import {injectInternals, onScheduleRoot} from './ReactFiberDevToolsHook.old';
import {
requestCurrentTimeForUpdate,
computeExpirationForFiber,
requestEventTime,
requestUpdateLane,
scheduleUpdateOnFiber,
flushRoot,
batchedEventUpdates,
@ -73,10 +73,13 @@ import {
} from './ReactCurrentFiber';
import {StrictMode} from './ReactTypeOfMode';
import {
Sync,
ContinuousHydration,
computeInteractiveExpiration,
} from './ReactFiberExpirationTime.old';
SyncLane,
InputDiscreteHydrationLane,
SelectiveHydrationLane,
NoTimestamp,
getHighestPriorityPendingLanes,
higherPriorityLane,
} from './ReactFiberLane';
import {requestCurrentSuspenseConfig} from './ReactFiberSuspenseConfig';
import {
scheduleRefresh,
@ -85,7 +88,7 @@ import {
findHostInstancesForRefresh,
} from './ReactFiberHotReloading.old';
export {registerMutableSourceForHydration} from './ReactMutableSource.old';
export {registerMutableSourceForHydration} from './ReactMutableSource.new';
export {createPortal} from './ReactPortal';
export {
createComponentSelector,
@ -246,12 +249,12 @@ export function updateContainer(
container: OpaqueRoot,
parentComponent: ?React$Component<any, any>,
callback: ?Function,
): ExpirationTime {
): Lane {
if (__DEV__) {
onScheduleRoot(container, element);
}
const current = container.current;
const currentTime = requestCurrentTimeForUpdate();
const eventTime = requestEventTime();
if (__DEV__) {
// $FlowExpectedError - jest isn't a global, and isn't recognized outside of tests
if ('undefined' !== typeof jest) {
@ -260,11 +263,7 @@ export function updateContainer(
}
}
const suspenseConfig = requestCurrentSuspenseConfig();
const expirationTime = computeExpirationForFiber(
currentTime,
current,
suspenseConfig,
);
const lane = requestUpdateLane(current, suspenseConfig);
const context = getContextForSubtree(parentComponent);
if (container.context === null) {
@ -290,7 +289,7 @@ export function updateContainer(
}
}
const update = createUpdate(expirationTime, suspenseConfig);
const update = createUpdate(eventTime, lane, suspenseConfig);
// Caution: React DevTools currently depends on this property
// being called "element".
update.payload = {element};
@ -310,9 +309,9 @@ export function updateContainer(
}
enqueueUpdate(current, update);
scheduleUpdateOnFiber(current, expirationTime);
scheduleUpdateOnFiber(current, lane, eventTime);
return expirationTime;
return lane;
}
export {
@ -350,37 +349,38 @@ export function attemptSynchronousHydration(fiber: Fiber): void {
const root: FiberRoot = fiber.stateNode;
if (root.hydrate) {
// Flush the first scheduled "update".
flushRoot(root, root.firstPendingTime);
const lanes = getHighestPriorityPendingLanes(root);
flushRoot(root, lanes);
}
break;
case SuspenseComponent:
flushSync(() => scheduleUpdateOnFiber(fiber, Sync));
const eventTime = requestEventTime();
flushSync(() => scheduleUpdateOnFiber(fiber, SyncLane, eventTime));
// If we're still blocked after this, we need to increase
// the priority of any promises resolving within this
// boundary so that they next attempt also has higher pri.
const retryExpTime = computeInteractiveExpiration(
requestCurrentTimeForUpdate(),
);
markRetryTimeIfNotHydrated(fiber, retryExpTime);
const retryLane = InputDiscreteHydrationLane;
markRetryLaneIfNotHydrated(fiber, retryLane);
break;
}
}
function markRetryTimeImpl(fiber: Fiber, retryTime: ExpirationTime) {
function markRetryLaneImpl(fiber: Fiber, retryLane: Lane) {
const suspenseState: null | SuspenseState = fiber.memoizedState;
if (suspenseState !== null && suspenseState.dehydrated !== null) {
if (suspenseState.retryTime < retryTime) {
suspenseState.retryTime = retryTime;
}
suspenseState.retryLane = higherPriorityLane(
suspenseState.retryLane,
retryLane,
);
}
}
// Increases the priority of thennables when they resolve within this boundary.
function markRetryTimeIfNotHydrated(fiber: Fiber, retryTime: ExpirationTime) {
markRetryTimeImpl(fiber, retryTime);
function markRetryLaneIfNotHydrated(fiber: Fiber, retryLane: Lane) {
markRetryLaneImpl(fiber, retryLane);
const alternate = fiber.alternate;
if (alternate) {
markRetryTimeImpl(alternate, retryTime);
markRetryLaneImpl(alternate, retryLane);
}
}
@ -392,9 +392,10 @@ export function attemptUserBlockingHydration(fiber: Fiber): void {
// Suspense.
return;
}
const expTime = computeInteractiveExpiration(requestCurrentTimeForUpdate());
scheduleUpdateOnFiber(fiber, expTime);
markRetryTimeIfNotHydrated(fiber, expTime);
const eventTime = requestEventTime();
const lane = InputDiscreteHydrationLane;
scheduleUpdateOnFiber(fiber, lane, eventTime);
markRetryLaneIfNotHydrated(fiber, lane);
}
export function attemptContinuousHydration(fiber: Fiber): void {
@ -405,8 +406,10 @@ export function attemptContinuousHydration(fiber: Fiber): void {
// Suspense.
return;
}
scheduleUpdateOnFiber(fiber, ContinuousHydration);
markRetryTimeIfNotHydrated(fiber, ContinuousHydration);
const eventTime = requestEventTime();
const lane = SelectiveHydrationLane;
scheduleUpdateOnFiber(fiber, lane, eventTime);
markRetryLaneIfNotHydrated(fiber, lane);
}
export function attemptHydrationAtCurrentPriority(fiber: Fiber): void {
@ -415,10 +418,10 @@ export function attemptHydrationAtCurrentPriority(fiber: Fiber): void {
// their priority other than synchronously flush it.
return;
}
const currentTime = requestCurrentTimeForUpdate();
const expTime = computeExpirationForFiber(currentTime, fiber, null);
scheduleUpdateOnFiber(fiber, expTime);
markRetryTimeIfNotHydrated(fiber, expTime);
const eventTime = requestEventTime();
const lane = requestUpdateLane(fiber, null);
scheduleUpdateOnFiber(fiber, lane, eventTime);
markRetryLaneIfNotHydrated(fiber, lane);
}
export {findHostInstance};
@ -500,7 +503,7 @@ if (__DEV__) {
// Shallow cloning props works as a workaround for now to bypass the bailout check.
fiber.memoizedProps = {...fiber.memoizedProps};
scheduleUpdateOnFiber(fiber, Sync);
scheduleUpdateOnFiber(fiber, SyncLane, NoTimestamp);
}
};
@ -510,11 +513,11 @@ if (__DEV__) {
if (fiber.alternate) {
fiber.alternate.pendingProps = fiber.pendingProps;
}
scheduleUpdateOnFiber(fiber, Sync);
scheduleUpdateOnFiber(fiber, SyncLane, NoTimestamp);
};
scheduleUpdate = (fiber: Fiber) => {
scheduleUpdateOnFiber(fiber, Sync);
scheduleUpdateOnFiber(fiber, SyncLane, NoTimestamp);
};
setSuspenseHandler = (newShouldSuspendImpl: Fiber => boolean) => {

4
packages/react-reconciler/src/ReactFiberRoot.new.js
View File

@ -39,7 +39,7 @@ function FiberRootNode(containerInfo, tag, hydrate) {
this.hydrate = hydrate;
this.callbackNode = null;
this.callbackId = NoLanes;
this.callbackPriority_new = NoLanePriority;
this.callbackPriority = NoLanePriority;
this.expirationTimes = createLaneMap(NoTimestamp);
this.pendingLanes = NoLanes;
@ -59,7 +59,7 @@ function FiberRootNode(containerInfo, tag, hydrate) {
if (enableSchedulerTracing) {
this.interactionThreadID = unstable_getThreadID();
this.memoizedInteractions = new Set();
this.pendingInteractionMap_new = new Map();
this.pendingInteractionMap = new Map();
}
if (enableSuspenseCallback) {
this.hydrationCallbacks = null;

154
packages/react-reconciler/src/ReactFiberRoot.old.js
View File

@ -8,44 +8,49 @@
*/
import type {FiberRoot, SuspenseHydrationCallbacks} from './ReactInternalTypes';
import type {ExpirationTime} from './ReactFiberExpirationTime.old';
import type {RootTag} from './ReactRootTags';
import {noTimeout, supportsHydration} from './ReactFiberHostConfig';
import {createHostRootFiber} from './ReactFiber.old';
import {NoWork} from './ReactFiberExpirationTime.old';
import {
NoLanes,
NoLanePriority,
NoTimestamp,
createLaneMap,
} from './ReactFiberLane';
import {
enableSchedulerTracing,
enableSuspenseCallback,
} from 'shared/ReactFeatureFlags';
import {unstable_getThreadID} from 'scheduler/tracing';
import {NoPriority} from './SchedulerWithReactIntegration.old';
import {initializeUpdateQueue} from './ReactUpdateQueue.old';
import {clearPendingUpdates as clearPendingMutableSourceUpdates} from './ReactMutableSource.old';
import {LegacyRoot, BlockingRoot, ConcurrentRoot} from './ReactRootTags';
function FiberRootNode(containerInfo, tag, hydrate) {
this.tag = tag;
this.current = null;
this.containerInfo = containerInfo;
this.pendingChildren = null;
this.current = null;
this.pingCache = null;
this.finishedExpirationTime = NoWork;
this.finishedWork = null;
this.timeoutHandle = noTimeout;
this.context = null;
this.pendingContext = null;
this.hydrate = hydrate;
this.callbackNode = null;
this.callbackPriority_old = NoPriority;
this.firstPendingTime = NoWork;
this.lastPendingTime = NoWork;
this.firstSuspendedTime = NoWork;
this.lastSuspendedTime = NoWork;
this.nextKnownPendingLevel = NoWork;
this.lastPingedTime = NoWork;
this.lastExpiredTime = NoWork;
this.mutableSourceLastPendingUpdateTime = NoWork;
this.callbackId = NoLanes;
this.callbackPriority = NoLanePriority;
this.expirationTimes = createLaneMap(NoTimestamp);
this.pendingLanes = NoLanes;
this.suspendedLanes = NoLanes;
this.pingedLanes = NoLanes;
this.expiredLanes = NoLanes;
this.mutableReadLanes = NoLanes;
this.finishedLanes = NoLanes;
this.entangledLanes = NoLanes;
this.entanglements = createLaneMap(NoLanes);
if (supportsHydration) {
this.mutableSourceEagerHydrationData = null;
@ -54,7 +59,7 @@ function FiberRootNode(containerInfo, tag, hydrate) {
if (enableSchedulerTracing) {
this.interactionThreadID = unstable_getThreadID();
this.memoizedInteractions = new Set();
this.pendingInteractionMap_old = new Map();
this.pendingInteractionMap = new Map();
}
if (enableSuspenseCallback) {
this.hydrationCallbacks = null;
@ -96,120 +101,3 @@ export function createFiberRoot(
return root;
}
export function isRootSuspendedAtTime(
root: FiberRoot,
expirationTime: ExpirationTime,
): boolean {
const firstSuspendedTime = root.firstSuspendedTime;
const lastSuspendedTime = root.lastSuspendedTime;
return (
firstSuspendedTime !== NoWork &&
firstSuspendedTime >= expirationTime &&
lastSuspendedTime <= expirationTime
);
}
export function markRootSuspendedAtTime(
root: FiberRoot,
expirationTime: ExpirationTime,
): void {
const firstSuspendedTime = root.firstSuspendedTime;
const lastSuspendedTime = root.lastSuspendedTime;
if (firstSuspendedTime < expirationTime) {
root.firstSuspendedTime = expirationTime;
}
if (lastSuspendedTime > expirationTime || firstSuspendedTime === NoWork) {
root.lastSuspendedTime = expirationTime;
}
if (expirationTime <= root.lastPingedTime) {
root.lastPingedTime = NoWork;
}
if (expirationTime <= root.lastExpiredTime) {
root.lastExpiredTime = NoWork;
}
}
export function markRootUpdatedAtTime(
root: FiberRoot,
expirationTime: ExpirationTime,
): void {
// Update the range of pending times
const firstPendingTime = root.firstPendingTime;
if (expirationTime > firstPendingTime) {
root.firstPendingTime = expirationTime;
}
const lastPendingTime = root.lastPendingTime;
if (lastPendingTime === NoWork || expirationTime < lastPendingTime) {
root.lastPendingTime = expirationTime;
}
// Update the range of suspended times. Treat everything lower priority or
// equal to this update as unsuspended.
const firstSuspendedTime = root.firstSuspendedTime;
if (firstSuspendedTime !== NoWork) {
if (expirationTime >= firstSuspendedTime) {
// The entire suspended range is now unsuspended.
root.firstSuspendedTime = root.lastSuspendedTime = root.nextKnownPendingLevel = NoWork;
} else if (expirationTime >= root.lastSuspendedTime) {
root.lastSuspendedTime = expirationTime + 1;
}
// This is a pending level. Check if it's higher priority than the next
// known pending level.
if (expirationTime > root.nextKnownPendingLevel) {
root.nextKnownPendingLevel = expirationTime;
}
}
}
export function markRootFinishedAtTime(
root: FiberRoot,
finishedExpirationTime: ExpirationTime,
remainingExpirationTime: ExpirationTime,
): void {
// Update the range of pending times
root.firstPendingTime = remainingExpirationTime;
if (remainingExpirationTime < root.lastPendingTime) {
// This usually means we've finished all the work, but it can also happen
// when something gets downprioritized during render, like a hidden tree.
root.lastPendingTime = remainingExpirationTime;
}
// Update the range of suspended times. Treat everything higher priority or
// equal to this update as unsuspended.
if (finishedExpirationTime <= root.lastSuspendedTime) {
// The entire suspended range is now unsuspended.
root.firstSuspendedTime = root.lastSuspendedTime = root.nextKnownPendingLevel = NoWork;
} else if (finishedExpirationTime <= root.firstSuspendedTime) {
// Part of the suspended range is now unsuspended. Narrow the range to
// include everything between the unsuspended time (non-inclusive) and the
// last suspended time.
root.firstSuspendedTime = finishedExpirationTime - 1;
}
if (finishedExpirationTime <= root.lastPingedTime) {
// Clear the pinged time
root.lastPingedTime = NoWork;
}
if (finishedExpirationTime <= root.lastExpiredTime) {
// Clear the expired time
root.lastExpiredTime = NoWork;
}
// Clear any pending updates that were just processed.
clearPendingMutableSourceUpdates(root, finishedExpirationTime);
}
export function markRootExpiredAtTime(
root: FiberRoot,
expirationTime: ExpirationTime,
): void {
const lastExpiredTime = root.lastExpiredTime;
if (lastExpiredTime === NoWork || lastExpiredTime > expirationTime) {
root.lastExpiredTime = expirationTime;
}
}

15
packages/react-reconciler/src/ReactFiberSuspenseComponent.old.js
View File

@ -9,7 +9,7 @@
import type {Fiber} from './ReactInternalTypes';
import type {SuspenseInstance} from './ReactFiberHostConfig';
import type {ExpirationTime} from './ReactFiberExpirationTime.old';
import type {Lane} from './ReactFiberLane';
import {SuspenseComponent, SuspenseListComponent} from './ReactWorkTags';
import {NoEffect, DidCapture} from './ReactSideEffectTags';
import {
@ -29,15 +29,10 @@ export type SuspenseState = {|
// here to indicate that it is dehydrated (flag) and for quick access
// to check things like isSuspenseInstancePending.
dehydrated: null | SuspenseInstance,
// Represents the work that was deprioritized when we committed the fallback.
// The work outside the boundary already committed at this level, so we cannot
// unhide the content without including it.
baseTime: ExpirationTime,
// Represents the earliest expiration time we should attempt to hydrate
// a dehydrated boundary at.
// Never is the default for dehydrated boundaries.
// NoWork is the default for normal boundaries, which turns into "normal" pri.
retryTime: ExpirationTime,
// Represents the lane we should attempt to hydrate a dehydrated boundary at.
// OffscreenLane is the default for dehydrated boundaries.
// NoLane is the default for normal boundaries, which turns into "normal" pri.
retryLane: Lane,
|};
export type SuspenseListTailMode = 'collapsed' | 'hidden' | void;

83
packages/react-reconciler/src/ReactFiberThrow.old.js
View File

@ -9,7 +9,7 @@
import type {Fiber} from './ReactInternalTypes';
import type {FiberRoot} from './ReactInternalTypes';
import type {ExpirationTime} from './ReactFiberExpirationTime.old';
import type {Lane, Lanes} from './ReactFiberLane';
import type {CapturedValue} from './ReactCapturedValue';
import type {Update} from './ReactUpdateQueue.old';
import type {Wakeable} from 'shared/ReactTypes';
@ -30,8 +30,7 @@ import {
LifecycleEffectMask,
} from './ReactSideEffectTags';
import {shouldCaptureSuspense} from './ReactFiberSuspenseComponent.old';
import {NoMode, BlockingMode, DebugTracingMode} from './ReactTypeOfMode';
import {enableDebugTracing} from 'shared/ReactFeatureFlags';
import {NoMode, BlockingMode} from './ReactTypeOfMode';
import {createCapturedValue} from './ReactCapturedValue';
import {
enqueueCapturedUpdate,
@ -54,18 +53,23 @@ import {
pingSuspendedRoot,
} from './ReactFiberWorkLoop.old';
import {logCapturedError} from './ReactFiberErrorLogger';
import {logComponentSuspended} from './DebugTracing';
import {Sync} from './ReactFiberExpirationTime.old';
import {
SyncLane,
NoTimestamp,
includesSomeLane,
mergeLanes,
pickArbitraryLane,
} from './ReactFiberLane';
const PossiblyWeakMap = typeof WeakMap === 'function' ? WeakMap : Map;
function createRootErrorUpdate(
fiber: Fiber,
errorInfo: CapturedValue<mixed>,
expirationTime: ExpirationTime,
lane: Lane,
): Update<mixed> {
const update = createUpdate(expirationTime, null);
const update = createUpdate(NoTimestamp, lane, null);
// Unmount the root by rendering null.
update.tag = CaptureUpdate;
// Caution: React DevTools currently depends on this property
@ -82,9 +86,9 @@ function createRootErrorUpdate(
function createClassErrorUpdate(
fiber: Fiber,
errorInfo: CapturedValue<mixed>,
expirationTime: ExpirationTime,
lane: Lane,
): Update<mixed> {
const update = createUpdate(expirationTime, null);
const update = createUpdate(NoTimestamp, lane, null);
update.tag = CaptureUpdate;
const getDerivedStateFromError = fiber.type.getDerivedStateFromError;
if (typeof getDerivedStateFromError === 'function') {
@ -122,7 +126,7 @@ function createClassErrorUpdate(
// If componentDidCatch is the only error boundary method defined,
// then it needs to call setState to recover from errors.
// If no state update is scheduled then the boundary will swallow the error.
if (fiber.expirationTime !== Sync) {
if (!includesSomeLane(fiber.lanes, (SyncLane: Lane))) {
console.error(
'%s: Error boundaries should implement getDerivedStateFromError(). ' +
'In that method, return a state update to display an error message or fallback UI.',
@ -140,14 +144,10 @@ function createClassErrorUpdate(
return update;
}
function attachPingListener(
root: FiberRoot,
renderExpirationTime: ExpirationTime,
wakeable: Wakeable,
) {
// Attach a listener to the promise to "ping" the root and retry. But
// only if one does not already exist for the current render expiration
// time (which acts like a "thread ID" here).
function attachPingListener(root: FiberRoot, wakeable: Wakeable, lanes: Lanes) {
// Attach a listener to the promise to "ping" the root and retry. But only if
// one does not already exist for the lanes we're currently rendering (which
// acts like a "thread ID" here).
let pingCache = root.pingCache;
let threadIDs;
if (pingCache === null) {
@ -161,15 +161,10 @@ function attachPingListener(
pingCache.set(wakeable, threadIDs);
}
}
if (!threadIDs.has(renderExpirationTime)) {
if (!threadIDs.has(lanes)) {
// Memoize using the thread ID to prevent redundant listeners.
threadIDs.add(renderExpirationTime);
const ping = pingSuspendedRoot.bind(
null,
root,
wakeable,
renderExpirationTime,
);
threadIDs.add(lanes);
const ping = pingSuspendedRoot.bind(null, root, wakeable, lanes);
wakeable.then(ping, ping);
}
}
@ -179,7 +174,7 @@ function throwException(
returnFiber: Fiber,
sourceFiber: Fiber,
value: mixed,
renderExpirationTime: ExpirationTime,
rootRenderLanes: Lanes,
) {
// The source fiber did not complete.
sourceFiber.effectTag |= Incomplete;
@ -194,15 +189,6 @@ function throwException(
// This is a wakeable.
const wakeable: Wakeable = (value: any);
if (__DEV__) {
if (enableDebugTracing) {
if (sourceFiber.mode & DebugTracingMode) {
const name = getComponentName(sourceFiber.type) || 'Unknown';
logComponentSuspended(name, wakeable);
}
}
}
if ((sourceFiber.mode & BlockingMode) === NoMode) {
// Reset the memoizedState to what it was before we attempted
// to render it.
@ -210,7 +196,7 @@ function throwException(
if (currentSource) {
sourceFiber.updateQueue = currentSource.updateQueue;
sourceFiber.memoizedState = currentSource.memoizedState;
sourceFiber.expirationTime = currentSource.expirationTime;
sourceFiber.lanes = currentSource.lanes;
} else {
sourceFiber.updateQueue = null;
sourceFiber.memoizedState = null;
@ -269,7 +255,7 @@ function throwException(
// When we try rendering again, we should not reuse the current fiber,
// since it's known to be in an inconsistent state. Use a force update to
// prevent a bail out.
const update = createUpdate(Sync, null);
const update = createUpdate(NoTimestamp, SyncLane, null);
update.tag = ForceUpdate;
enqueueUpdate(sourceFiber, update);
}
@ -277,7 +263,7 @@ function throwException(
// The source fiber did not complete. Mark it with Sync priority to
// indicate that it still has pending work.
sourceFiber.expirationTime = Sync;
sourceFiber.lanes = mergeLanes(sourceFiber.lanes, SyncLane);
// Exit without suspending.
return;
@ -325,10 +311,10 @@ function throwException(
// We want to ensure that a "busy" state doesn't get force committed. We want to
// ensure that new initial loading states can commit as soon as possible.
attachPingListener(root, renderExpirationTime, wakeable);
attachPingListener(root, wakeable, rootRenderLanes);
workInProgress.effectTag |= ShouldCapture;
workInProgress.expirationTime = renderExpirationTime;
workInProgress.lanes = rootRenderLanes;
return;
}
@ -351,6 +337,7 @@ function throwException(
// over and traverse parent path again, this time treating the exception
// as an error.
renderDidError();
value = createCapturedValue(value, sourceFiber);
let workInProgress = returnFiber;
do {
@ -358,12 +345,9 @@ function throwException(
case HostRoot: {
const errorInfo = value;
workInProgress.effectTag |= ShouldCapture;
workInProgress.expirationTime = renderExpirationTime;
const update = createRootErrorUpdate(
workInProgress,
errorInfo,
renderExpirationTime,
);
const lane = pickArbitraryLane(rootRenderLanes);
workInProgress.lanes = mergeLanes(workInProgress.lanes, lane);
const update = createRootErrorUpdate(workInProgress, errorInfo, lane);
enqueueCapturedUpdate(workInProgress, update);
return;
}
@ -380,12 +364,13 @@ function throwException(
!isAlreadyFailedLegacyErrorBoundary(instance)))
) {
workInProgress.effectTag |= ShouldCapture;
workInProgress.expirationTime = renderExpirationTime;
const lane = pickArbitraryLane(rootRenderLanes);
workInProgress.lanes = mergeLanes(workInProgress.lanes, lane);
// Schedule the error boundary to re-render using updated state
const update = createClassErrorUpdate(
workInProgress,
errorInfo,
renderExpirationTime,
lane,
);
enqueueCapturedUpdate(workInProgress, update);
return;

18
packages/react-reconciler/src/ReactFiberUnwindWork.old.js
View File

@ -8,7 +8,7 @@
*/
import type {Fiber} from './ReactInternalTypes';
import type {ExpirationTime} from './ReactFiberExpirationTime.old';
import type {Lanes} from './ReactFiberLane';
import type {SuspenseState} from './ReactFiberSuspenseComponent.old';
import {resetWorkInProgressVersions as resetMutableSourceWorkInProgressVersions} from './ReactMutableSource.old';
@ -20,6 +20,8 @@ import {
ContextProvider,
SuspenseComponent,
SuspenseListComponent,
OffscreenComponent,
LegacyHiddenComponent,
} from './ReactWorkTags';
import {DidCapture, NoEffect, ShouldCapture} from './ReactSideEffectTags';
import {NoMode, ProfileMode} from './ReactTypeOfMode';
@ -37,14 +39,12 @@ import {
popTopLevelContextObject as popTopLevelLegacyContextObject,
} from './ReactFiberContext.old';
import {popProvider} from './ReactFiberNewContext.old';
import {popRenderLanes} from './ReactFiberWorkLoop.old';
import {transferActualDuration} from './ReactProfilerTimer.old';
import invariant from 'shared/invariant';
function unwindWork(
workInProgress: Fiber,
renderExpirationTime: ExpirationTime,
) {
function unwindWork(workInProgress: Fiber, renderLanes: Lanes) {
switch (workInProgress.tag) {
case ClassComponent: {
const Component = workInProgress.type;
@ -122,6 +122,10 @@ function unwindWork(
case ContextProvider:
popProvider(workInProgress);
return null;
case OffscreenComponent:
case LegacyHiddenComponent:
popRenderLanes(workInProgress);
return null;
default:
return null;
}
@ -158,6 +162,10 @@ function unwindInterruptedWork(interruptedWork: Fiber) {
case ContextProvider:
popProvider(interruptedWork);
break;
case OffscreenComponent:
case LegacyHiddenComponent:
popRenderLanes(interruptedWork);
break;
default:
break;
}

26
packages/react-reconciler/src/ReactFiberWorkLoop.new.js
View File

@ -619,7 +619,7 @@ function ensureRootIsScheduled(root: FiberRoot, currentTime: number) {
if (existingCallbackNode !== null) {
cancelCallback(existingCallbackNode);
root.callbackNode = null;
root.callbackPriority_new = NoLanePriority;
root.callbackPriority = NoLanePriority;
root.callbackId = NoLanes;
}
return;
@ -627,7 +627,7 @@ function ensureRootIsScheduled(root: FiberRoot, currentTime: number) {
// Check if there's an existing task. We may be able to reuse it.
const existingCallbackId = root.callbackId;
const existingCallbackPriority = root.callbackPriority_new;
const existingCallbackPriority = root.callbackPriority;
if (existingCallbackId !== NoLanes) {
if (newCallbackId === existingCallbackId) {
// This task is already scheduled. Let's check its priority.
@ -660,7 +660,7 @@ function ensureRootIsScheduled(root: FiberRoot, currentTime: number) {
}
root.callbackId = newCallbackId;
root.callbackPriority_new = newCallbackPriority;
root.callbackPriority = newCallbackPriority;
root.callbackNode = newCallbackNode;
}
@ -3196,7 +3196,7 @@ function scheduleInteractions(
}
if (interactions.size > 0) {
const pendingInteractionMap = root.pendingInteractionMap_new;
const pendingInteractionMap = root.pendingInteractionMap;
const pendingInteractions = pendingInteractionMap.get(lane);
if (pendingInteractions != null) {
interactions.forEach(interaction => {
@ -3245,15 +3245,13 @@ function startWorkOnPendingInteractions(root: FiberRoot, lanes: Lanes) {
// we can accurately attribute time spent working on it, And so that cascading
// work triggered during the render phase will be associated with it.
const interactions: Set<Interaction> = new Set();
root.pendingInteractionMap_new.forEach(
(scheduledInteractions, scheduledLane) => {
if (includesSomeLane(lanes, scheduledLane)) {
scheduledInteractions.forEach(interaction =>
interactions.add(interaction),
);
}
},
);
root.pendingInteractionMap.forEach((scheduledInteractions, scheduledLane) => {
if (includesSomeLane(lanes, scheduledLane)) {
scheduledInteractions.forEach(interaction =>
interactions.add(interaction),
);
}
});
// Store the current set of interactions on the FiberRoot for a few reasons:
// We can re-use it in hot functions like performConcurrentWorkOnRoot()
@ -3303,7 +3301,7 @@ function finishPendingInteractions(root, committedLanes) {
// Clear completed interactions from the pending Map.
// Unless the render was suspended or cascading work was scheduled,
// In which case– leave pending interactions until the subsequent render.
const pendingInteractionMap = root.pendingInteractionMap_new;
const pendingInteractionMap = root.pendingInteractionMap;
pendingInteractionMap.forEach((scheduledInteractions, lane) => {
// Only decrement the pending interaction count if we're done.
// If there's still work at the current priority,

1459
packages/react-reconciler/src/ReactFiberWorkLoop.old.js
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File diff suppressed because it is too large Load Diff

54
packages/react-reconciler/src/ReactInternalTypes.js vendored
View File

@ -23,7 +23,6 @@ import type {SuspenseInstance} from './ReactFiberHostConfig';
import type {WorkTag} from './ReactWorkTags';
import type {TypeOfMode} from './ReactTypeOfMode';
import type {SideEffectTag} from './ReactSideEffectTags';
import type {ExpirationTime} from './ReactFiberExpirationTime.old';
import type {Lane, LanePriority, Lanes, LaneMap} from './ReactFiberLane';
import type {HookType} from './ReactFiberHooks.old';
import type {RootTag} from './ReactRootTags';
@ -41,17 +40,7 @@ export type ContextDependency<T> = {
...
};
export type Dependencies_old = {
expirationTime: ExpirationTime,
firstContext: ContextDependency<mixed> | null,
responders: Map<
ReactEventResponder<any, any>,
ReactEventResponderInstance<any, any>,
> | null,
...
};
export type Dependencies_new = {
export type Dependencies = {
lanes: Lanes,
firstContext: ContextDependency<mixed> | null,
responders: Map<
@ -125,8 +114,7 @@ export type Fiber = {|
memoizedState: any,
// Dependencies (contexts, events) for this fiber, if it has any
dependencies_new: Dependencies_new | null,
dependencies_old: Dependencies_old | null,
dependencies: Dependencies | null,
// Bitfield that describes properties about the fiber and its subtree. E.g.
// the ConcurrentMode flag indicates whether the subtree should be async-by-
@ -148,11 +136,6 @@ export type Fiber = {|
firstEffect: Fiber | null,
lastEffect: Fiber | null,
// Only used by old reconciler
expirationTime: ExpirationTime,
childExpirationTime: ExpirationTime,
// Only used by new reconciler
lanes: Lanes,
childLanes: Lanes,
@ -222,43 +205,15 @@ type BaseFiberRootProperties = {|
// Node returned by Scheduler.scheduleCallback
callbackNode: *,
// Only used by old reconciler
// Expiration of the callback associated with this root
callbackExpirationTime: ExpirationTime,
// Priority of the callback associated with this root
callbackPriority_old: ReactPriorityLevel,
finishedExpirationTime: ExpirationTime,
// The earliest pending expiration time that exists in the tree
firstPendingTime: ExpirationTime,
// The latest pending expiration time that exists in the tree
lastPendingTime: ExpirationTime,
// The earliest suspended expiration time that exists in the tree
firstSuspendedTime: ExpirationTime,
// The latest suspended expiration time that exists in the tree
lastSuspendedTime: ExpirationTime,
// The next known expiration time after the suspended range
nextKnownPendingLevel: ExpirationTime,
// The latest time at which a suspended component pinged the root to
// render again
lastPingedTime: ExpirationTime,
lastExpiredTime: ExpirationTime,
// Used by useMutableSource hook to avoid tearing within this root
// when external, mutable sources are read from during render.
mutableSourceLastPendingUpdateTime: ExpirationTime,
// Used by useMutableSource hook to avoid tearing during hydrtaion.
mutableSourceEagerHydrationData?: Array<
MutableSource<any> | MutableSourceVersion,
> | null,
// Only used by new reconciler
// Represents the next task that the root should work on, or the current one
// if it's already working.
callbackId: Lanes,
callbackPriority_new: LanePriority,
callbackPriority: LanePriority,
expirationTimes: LaneMap<number>,
pendingLanes: Lanes,
@ -280,8 +235,7 @@ type BaseFiberRootProperties = {|
type ProfilingOnlyFiberRootProperties = {|
interactionThreadID: number,
memoizedInteractions: Set<Interaction>,
pendingInteractionMap_new: Map<Lane | Lanes, Set<Interaction>>,
pendingInteractionMap_old: Map<ExpirationTime, Set<Interaction>>,
pendingInteractionMap: Map<Lane | Lanes, Set<Interaction>>,
|};
export type SuspenseHydrationCallbacks = {

32
packages/react-reconciler/src/ReactMutableSource.old.js
View File

@ -7,12 +7,10 @@
* @flow
*/
import type {ExpirationTime} from './ReactFiberExpirationTime.old';
import type {FiberRoot} from './ReactInternalTypes';
import type {MutableSource, MutableSourceVersion} from 'shared/ReactTypes';
import type {FiberRoot} from './ReactInternalTypes';
import {isPrimaryRenderer} from './ReactFiberHostConfig';
import {NoWork} from './ReactFiberExpirationTime.old';
// Work in progress version numbers only apply to a single render,
// and should be reset before starting a new render.
@ -25,34 +23,6 @@ if (__DEV__) {
rendererSigil = {};
}
export function clearPendingUpdates(
root: FiberRoot,
expirationTime: ExpirationTime,
): void {
if (expirationTime <= root.mutableSourceLastPendingUpdateTime) {
// All updates for this source have been processed.
root.mutableSourceLastPendingUpdateTime = NoWork;
}
}
export function getLastPendingExpirationTime(root: FiberRoot): ExpirationTime {
return root.mutableSourceLastPendingUpdateTime;
}
export function setPendingExpirationTime(
root: FiberRoot,
expirationTime: ExpirationTime,
): void {
const mutableSourceLastPendingUpdateTime =
root.mutableSourceLastPendingUpdateTime;
if (
mutableSourceLastPendingUpdateTime === NoWork ||
expirationTime < mutableSourceLastPendingUpdateTime
) {
root.mutableSourceLastPendingUpdateTime = expirationTime;
}
}
export function markSourceAsDirty(mutableSource: MutableSource<any>): void {
workInProgressSources.push(mutableSource);
}

65
packages/react-reconciler/src/ReactUpdateQueue.old.js
View File

@ -85,11 +85,10 @@
// resources, but the final state is always the same.
import type {Fiber} from './ReactInternalTypes';
import type {ExpirationTime} from './ReactFiberExpirationTime.old';
import type {Lanes, Lane} from './ReactFiberLane';
import type {SuspenseConfig} from './ReactFiberSuspenseConfig';
import type {ReactPriorityLevel} from './ReactInternalTypes';
import {NoWork, Sync} from './ReactFiberExpirationTime.old';
import {NoLane, NoLanes, isSubsetOfLanes, mergeLanes} from './ReactFiberLane';
import {
enterDisallowedContextReadInDEV,
exitDisallowedContextReadInDEV,
@ -101,16 +100,18 @@ import {debugRenderPhaseSideEffectsForStrictMode} from 'shared/ReactFeatureFlags
import {StrictMode} from './ReactTypeOfMode';
import {
markRenderEventTimeAndConfig,
markUnprocessedUpdateTime,
markSkippedUpdateLanes,
} from './ReactFiberWorkLoop.old';
import invariant from 'shared/invariant';
import {getCurrentPriorityLevel} from './SchedulerWithReactIntegration.old';
import {disableLogs, reenableLogs} from 'shared/ConsolePatchingDev';
export type Update<State> = {|
expirationTime: ExpirationTime,
// TODO: Temporary field. Will remove this by storing a map of
// transition -> event time on the root.
eventTime: number,
lane: Lane,
suspenseConfig: null | SuspenseConfig,
tag: 0 | 1 | 2 | 3,
@ -118,12 +119,11 @@ export type Update<State> = {|
callback: (() => mixed) | null,
next: Update<State> | null,
// DEV only
priority?: ReactPriorityLevel,
|};
type SharedQueue<State> = {|pending: Update<State> | null|};
type SharedQueue<State> = {|
pending: Update<State> | null,
|};
export type UpdateQueue<State> = {|
baseState: State,
@ -187,11 +187,13 @@ export function cloneUpdateQueue<State>(
}
export function createUpdate(
expirationTime: ExpirationTime,
eventTime: number,
lane: Lane,
suspenseConfig: null | SuspenseConfig,
): Update<*> {
const update: Update<*> = {
expirationTime,
eventTime,
lane,
suspenseConfig,
tag: UpdateState,
@ -200,9 +202,6 @@ export function createUpdate(
next: null,
};
if (__DEV__) {
update.priority = getCurrentPriorityLevel();
}
return update;
}
@ -268,7 +267,8 @@ export function enqueueCapturedUpdate<State>(
let update = firstBaseUpdate;
do {
const clone: Update<State> = {
expirationTime: update.expirationTime,
eventTime: update.eventTime,
lane: update.lane,
suspenseConfig: update.suspenseConfig,
tag: update.tag,
@ -406,7 +406,7 @@ export function processUpdateQueue<State>(
workInProgress: Fiber,
props: any,
instance: any,
renderExpirationTime: ExpirationTime,
renderLanes: Lanes,
): void {
// This is always non-null on a ClassComponent or HostRoot
const queue: UpdateQueue<State> = (workInProgress.updateQueue: any);
@ -463,7 +463,9 @@ export function processUpdateQueue<State>(
if (firstBaseUpdate !== null) {
// Iterate through the list of updates to compute the result.
let newState = queue.baseState;
let newExpirationTime = NoWork;
// TODO: Don't need to accumulate this. Instead, we can remove renderLanes
// from the original lanes.
let newLanes = NoLanes;
let newBaseState = null;
let newFirstBaseUpdate = null;
@ -471,13 +473,15 @@ export function processUpdateQueue<State>(
let update = firstBaseUpdate;
do {
const updateExpirationTime = update.expirationTime;
if (updateExpirationTime < renderExpirationTime) {
const updateLane = update.lane;
const updateEventTime = update.eventTime;
if (!isSubsetOfLanes(renderLanes, updateLane)) {
// Priority is insufficient. Skip this update. If this is the first
// skipped update, the previous update/state is the new base
// update/state.
const clone: Update<State> = {
expirationTime: update.expirationTime,
eventTime: updateEventTime,
lane: updateLane,
suspenseConfig: update.suspenseConfig,
tag: update.tag,
@ -493,15 +497,17 @@ export function processUpdateQueue<State>(
newLastBaseUpdate = newLastBaseUpdate.next = clone;
}
// Update the remaining priority in the queue.
if (updateExpirationTime > newExpirationTime) {
newExpirationTime = updateExpirationTime;
}
newLanes = mergeLanes(newLanes, updateLane);
} else {
// This update does have sufficient priority.
if (newLastBaseUpdate !== null) {
const clone: Update<State> = {
expirationTime: Sync, // This update is going to be committed so we never want uncommit it.
eventTime: updateEventTime,
// This update is going to be committed so we never want uncommit
// it. Using NoLane works because 0 is a subset of all bitmasks, so
// this will never be skipped by the check above.
lane: NoLane,
suspenseConfig: update.suspenseConfig,
tag: update.tag,
@ -519,10 +525,7 @@ export function processUpdateQueue<State>(
// TODO: We should skip this update if it was already committed but currently
// we have no way of detecting the difference between a committed and suspended
// update here.
markRenderEventTimeAndConfig(
updateExpirationTime,
update.suspenseConfig,
);
markRenderEventTimeAndConfig(updateEventTime, update.suspenseConfig);
// Process this update.
newState = getStateFromUpdate(
@ -579,8 +582,8 @@ export function processUpdateQueue<State>(
// dealt with the props. Context in components that specify
// shouldComponentUpdate is tricky; but we'll have to account for
// that regardless.
markUnprocessedUpdateTime(newExpirationTime);
workInProgress.expirationTime = newExpirationTime;
markSkippedUpdateLanes(newLanes);
workInProgress.lanes = newLanes;
workInProgress.memoizedState = newState;
}

29
packages/react-reconciler/src/__tests__/ReactExpiration-test.js vendored
View File

@ -156,17 +156,8 @@ describe('ReactExpiration', () => {
// Schedule another update.
ReactNoop.render(<TextClass text="B" />);
expect(Scheduler).toFlushAndYield(
gate(flags =>
flags.new
? // In the new reconciler, both updates are batched
['B [render]', 'B [commit]']
: // In the old reconciler, they are flushed separately. That's not
// ideal, but for the purposes of this test it's fine since they
// didn't happen in the same event,
['A [render]', 'A [commit]', 'B [render]', 'B [commit]'],
),
);
// Both updates are batched
expect(Scheduler).toFlushAndYield(['B [render]', 'B [commit]']);
expect(ReactNoop.getChildren()).toEqual([span('B')]);
// Now do the same thing again, except this time don't flush any work in
@ -220,17 +211,8 @@ describe('ReactExpiration', () => {
// Schedule another update.
ReactNoop.render(<TextClass text="B" />);
expect(Scheduler).toFlushAndYield(
gate(flags =>
flags.new
? // In the new reconciler, both updates are batched
['B [render]', 'B [commit]']
: // In the old reconciler, they are flushed separately. That's not
// ideal, but for the purposes of this test it's fine since they
// didn't happen in the same event,
['A [render]', 'A [commit]', 'B [render]', 'B [commit]'],
),
);
// Both updates are batched
expect(Scheduler).toFlushAndYield(['B [render]', 'B [commit]']);
expect(ReactNoop.getChildren()).toEqual([span('B')]);
// Now do the same thing again, except this time don't flush any work in
@ -489,7 +471,6 @@ describe('ReactExpiration', () => {
expect(root).toMatchRenderedOutput('High pri: 2, Normal pri: 2');
});
// @gate new
it('prevents starvation by sync updates', async () => {
const {useState} = React;
@ -629,7 +610,6 @@ describe('ReactExpiration', () => {
expect(root).toMatchRenderedOutput('Sync pri: 2, Idle pri: 2');
});
// @gate new
it('a single update can expire without forcing all other updates to expire', async () => {
const {useState} = React;
@ -766,7 +746,6 @@ describe('ReactExpiration', () => {
});
});
// @gate new
it('updates do not expire while they are IO-bound', async () => {
const {Suspense} = React;

45
packages/react-reconciler/src/__tests__/ReactIncremental-test.js vendored
View File

@ -24,23 +24,20 @@ describe('ReactIncremental', () => {
PropTypes = require('prop-types');
});
// TODO: Delete this once new API exists in both forks
function LegacyHiddenDiv({hidden, children, ...props}) {
if (gate(flags => flags.new)) {
return (
<div hidden={hidden} {...props}>
<React.unstable_LegacyHidden mode={hidden ? 'hidden' : 'visible'}>
{children}
</React.unstable_LegacyHidden>
</div>
);
} else {
return (
<div hidden={hidden} {...props}>
// Note: This is based on a similar component we use in www. We can delete
// once the extra div wrapper is no longer neccessary.
function LegacyHiddenDiv({children, mode}) {
return (
<div
hidden={
mode === 'hidden' ? 'unstable-do-not-use-legacy-hidden' : undefined
}>
<React.unstable_LegacyHidden
mode={mode === 'hidden' ? 'unstable-defer-without-hiding' : mode}>
{children}
</div>
);
}
</React.unstable_LegacyHidden>
</div>
);
}
it('should render a simple component', () => {
@ -229,7 +226,7 @@ describe('ReactIncremental', () => {
expect(inst.state).toEqual({text: 'bar', text2: 'baz'});
});
// @gate enableLegacyHiddenType
// @gate experimental
it('can deprioritize unfinished work and resume it later', () => {
function Bar(props) {
Scheduler.unstable_yieldValue('Bar');
@ -246,11 +243,11 @@ describe('ReactIncremental', () => {
return (
<div>
<Bar>{props.text}</Bar>
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<Middle>{props.text}</Middle>
</LegacyHiddenDiv>
<Bar>{props.text}</Bar>
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<Middle>Footer</Middle>
</LegacyHiddenDiv>
</div>
@ -275,7 +272,7 @@ describe('ReactIncremental', () => {
expect(Scheduler).toFlushAndYield(['Middle', 'Middle']);
});
// @gate enableLegacyHiddenType
// @gate experimental
it('can deprioritize a tree from without dropping work', () => {
function Bar(props) {
Scheduler.unstable_yieldValue('Bar');
@ -292,11 +289,11 @@ describe('ReactIncremental', () => {
return (
<div>
<Bar>{props.text}</Bar>
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<Middle>{props.text}</Middle>
</LegacyHiddenDiv>
<Bar>{props.text}</Bar>
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<Middle>Footer</Middle>
</LegacyHiddenDiv>
</div>
@ -1971,7 +1968,7 @@ describe('ReactIncremental', () => {
});
}
// @gate enableLegacyHiddenType
// @gate experimental
it('provides context when reusing work', () => {
class Intl extends React.Component {
static childContextTypes = {
@ -2003,7 +2000,7 @@ describe('ReactIncremental', () => {
ReactNoop.render(
<Intl locale="fr">
<ShowLocale />
<LegacyHiddenDiv hidden="true">
<LegacyHiddenDiv mode="hidden">
<ShowLocale />
<Intl locale="ru">
<ShowLocale />

33
packages/react-reconciler/src/__tests__/ReactIncrementalErrorHandling-test.internal.js
View File

@ -45,23 +45,20 @@ describe('ReactIncrementalErrorHandling', () => {
);
}
// TODO: Delete this once new API exists in both forks
function LegacyHiddenDiv({hidden, children, ...props}) {
if (gate(flags => flags.new)) {
return (
<div hidden={hidden} {...props}>
<React.unstable_LegacyHidden mode={hidden ? 'hidden' : 'visible'}>
{children}
</React.unstable_LegacyHidden>
</div>
);
} else {
return (
<div hidden={hidden} {...props}>
// Note: This is based on a similar component we use in www. We can delete
// once the extra div wrapper is no longer neccessary.
function LegacyHiddenDiv({children, mode}) {
return (
<div
hidden={
mode === 'hidden' ? 'unstable-do-not-use-legacy-hidden' : undefined
}>
<React.unstable_LegacyHidden
mode={mode === 'hidden' ? 'unstable-defer-without-hiding' : mode}>
{children}
</div>
);
}
</React.unstable_LegacyHidden>
</div>
);
}
it('recovers from errors asynchronously', () => {
@ -289,7 +286,7 @@ describe('ReactIncrementalErrorHandling', () => {
expect(ReactNoop.getChildren()).toEqual([span('Everything is fine.')]);
});
// @gate enableLegacyHiddenType
// @gate experimental
it('does not include offscreen work when retrying after an error', () => {
function App(props) {
if (props.isBroken) {
@ -300,7 +297,7 @@ describe('ReactIncrementalErrorHandling', () => {
return (
<>
Everything is fine
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<div>Offscreen content</div>
</LegacyHiddenDiv>
</>

49
packages/react-reconciler/src/__tests__/ReactIncrementalSideEffects-test.js vendored
View File

@ -38,23 +38,20 @@ describe('ReactIncrementalSideEffects', () => {
return {text: t, hidden: false};
}
// TODO: Delete this once new API exists in both forks
function LegacyHiddenDiv({hidden, children, ...props}) {
if (gate(flags => flags.new)) {
return (
<div hidden={hidden} {...props}>
<React.unstable_LegacyHidden mode={hidden ? 'hidden' : 'visible'}>
{children}
</React.unstable_LegacyHidden>
</div>
);
} else {
return (
<div hidden={hidden} {...props}>
// Note: This is based on a similar component we use in www. We can delete
// once the extra div wrapper is no longer neccessary.
function LegacyHiddenDiv({children, mode}) {
return (
<div
hidden={
mode === 'hidden' ? 'unstable-do-not-use-legacy-hidden' : undefined
}>
<React.unstable_LegacyHidden
mode={mode === 'hidden' ? 'unstable-defer-without-hiding' : mode}>
{children}
</div>
);
}
</React.unstable_LegacyHidden>
</div>
);
}
it('can update child nodes of a host instance', () => {
@ -424,7 +421,7 @@ describe('ReactIncrementalSideEffects', () => {
]);
});
// @gate enableLegacyHiddenType
// @gate experimental
it('preserves a previously rendered node when deprioritized', () => {
function Middle(props) {
Scheduler.unstable_yieldValue('Middle');
@ -435,7 +432,7 @@ describe('ReactIncrementalSideEffects', () => {
Scheduler.unstable_yieldValue('Foo');
return (
<div>
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<Middle>{props.text}</Middle>
</LegacyHiddenDiv>
</div>
@ -475,7 +472,7 @@ describe('ReactIncrementalSideEffects', () => {
);
});
// @gate enableLegacyHiddenType
// @gate experimental
it('can reuse side-effects after being preempted', () => {
function Bar(props) {
Scheduler.unstable_yieldValue('Bar');
@ -492,7 +489,7 @@ describe('ReactIncrementalSideEffects', () => {
function Foo(props) {
Scheduler.unstable_yieldValue('Foo');
return (
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
{props.step === 0 ? (
<div>
<Bar>Hi</Bar>
@ -555,7 +552,7 @@ describe('ReactIncrementalSideEffects', () => {
);
});
// @gate enableLegacyHiddenType
// @gate experimental
it('can reuse side-effects after being preempted, if shouldComponentUpdate is false', () => {
class Bar extends React.Component {
shouldComponentUpdate(nextProps) {
@ -585,7 +582,7 @@ describe('ReactIncrementalSideEffects', () => {
function Foo(props) {
Scheduler.unstable_yieldValue('Foo');
return (
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<Content step={props.step} text={props.text} />
</LegacyHiddenDiv>
);
@ -671,11 +668,11 @@ describe('ReactIncrementalSideEffects', () => {
expect(ReactNoop.getChildrenAsJSX()).toEqual(<span prop={3} />);
});
// @gate enableLegacyHiddenType
// @gate experimental
it('updates a child even though the old props is empty', () => {
function Foo(props) {
return (
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<span prop={1} />
</LegacyHiddenDiv>
);
@ -911,7 +908,7 @@ describe('ReactIncrementalSideEffects', () => {
expect(ops).toEqual(['Bar', 'Baz', 'Bar', 'Bar']);
});
// @gate enableLegacyHiddenType
// @gate experimental
it('deprioritizes setStates that happens within a deprioritized tree', () => {
const barInstances = [];
@ -934,7 +931,7 @@ describe('ReactIncrementalSideEffects', () => {
return (
<div>
<span prop={props.tick} />
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<Bar idx={props.idx} />
<Bar idx={props.idx} />
<Bar idx={props.idx} />

375
packages/react-reconciler/src/__tests__/ReactIncrementalUpdates-test.js vendored
View File

@ -170,32 +170,7 @@ describe('ReactIncrementalUpdates', () => {
// Now flush the remaining work. Even though e and f were already processed,
// they should be processed again, to ensure that the terminal state
// is deterministic.
expect(Scheduler).toFlushAndYield(
gate(flags =>
flags.new
? ['a', 'b', 'c', 'd', 'e', 'f', 'g']
: [
'a',
'b',
'c',
// The old reconciler has a quirk where `d` has slightly lower
// priority than `g`, because it was scheduled in the middle of a
// render. This is an implementation detail, but I've left the
// test in this branch as-is since this was written so long ago.
// This first render does not include d.
'e',
'f',
'g',
// This second render does.
'd',
'e',
'f',
'g',
],
),
);
expect(Scheduler).toFlushAndYield(['a', 'b', 'c', 'd', 'e', 'f', 'g']);
expect(ReactNoop.getChildren()).toEqual([span('abcdefg')]);
});
@ -254,32 +229,7 @@ describe('ReactIncrementalUpdates', () => {
// Now flush the remaining work. Even though e and f were already processed,
// they should be processed again, to ensure that the terminal state
// is deterministic.
expect(Scheduler).toFlushAndYield(
gate(flags =>
flags.new
? ['a', 'b', 'c', 'd', 'e', 'f', 'g']
: [
'a',
'b',
'c',
// The old reconciler has a quirk where `d` has slightly lower
// priority than `g`, because it was scheduled in the middle of a
// render. This is an implementation detail, but I've left the
// test in this branch as-is since this was written so long ago.
// This first render does not include d.
'e',
'f',
'g',
// This second render does.
'd',
'e',
'f',
'g',
],
),
);
expect(Scheduler).toFlushAndYield(['a', 'b', 'c', 'd', 'e', 'f', 'g']);
expect(ReactNoop.getChildren()).toEqual([span('fg')]);
});
@ -394,7 +344,7 @@ describe('ReactIncrementalUpdates', () => {
expect(() =>
expect(Scheduler).toFlushAndYield(
gate(flags =>
flags.new && flags.deferRenderPhaseUpdateToNextBatch
flags.deferRenderPhaseUpdateToNextBatch
? [
'setState updater',
// In the new reconciler, updates inside the render phase are
@ -427,7 +377,7 @@ describe('ReactIncrementalUpdates', () => {
});
expect(Scheduler).toFlushAndYield(
gate(flags =>
flags.new && flags.deferRenderPhaseUpdateToNextBatch
flags.deferRenderPhaseUpdateToNextBatch
? // In the new reconciler, updates inside the render phase are
// treated as if they came from an event, so the update gets shifted
// to a subsequent render.
@ -488,323 +438,6 @@ describe('ReactIncrementalUpdates', () => {
expect(ReactNoop.getChildren()).toEqual([span('derived state')]);
});
// Note: This test doesn't really make sense in the new model. The
// corresponding concept is tested in ReactExpiration-test.
// @gate old
it('flushes all expired updates in a single batch', () => {
const {useEffect} = React;
function App({label}) {
Scheduler.unstable_yieldValue('Render: ' + label);
useEffect(() => {
Scheduler.unstable_yieldValue('Commit: ' + label);
});
return label;
}
function interrupt() {
ReactNoop.flushSync(() => {
ReactNoop.renderToRootWithID(null, 'other-root');
});
}
// First, as a sanity check, assert what happens when four low pri
// updates in separate batches are all flushed in the same callback
ReactNoop.act(() => {
ReactNoop.render(<App label="" />);
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['Render: ']);
interrupt();
ReactNoop.render(<App label="he" />);
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['Render: ']);
interrupt();
ReactNoop.render(<App label="hell" />);
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['Render: ']);
interrupt();
ReactNoop.render(<App label="hello" />);
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['Render: ']);
interrupt();
// Each update flushes in a separate commit.
// Note: This isn't necessarily the ideal behavior. It might be better to
// batch all of these updates together. The fact that they don't is an
// implementation detail. The important part of this unit test is what
// happens when they expire, in which case they really should be batched to
// avoid blocking the main thread for a long time.
expect(Scheduler).toFlushAndYield([
'Render: ',
'Commit: ',
'Render: he',
'Commit: he',
'Render: hell',
'Commit: hell',
'Render: hello',
'Commit: hello',
]);
});
ReactNoop.act(() => {
// Now do the same thing over again, but this time, expire all the updates
// instead of flushing them normally.
ReactNoop.render(<App label="" />);
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['Render: ']);
interrupt();
ReactNoop.render(<App label="go" />);
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['Render: ']);
interrupt();
ReactNoop.render(<App label="good" />);
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['Render: ']);
interrupt();
ReactNoop.render(<App label="goodbye" />);
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['Render: ']);
interrupt();
// All the updates should render and commit in a single batch.
Scheduler.unstable_advanceTime(10000);
expect(Scheduler).toFlushExpired(['Render: goodbye']);
// Passive effect
expect(Scheduler).toFlushAndYield(['Commit: goodbye']);
});
});
// Note: This test doesn't really make sense in the new model, but we might
// want to port it once lanes are implemented.
// @gate old
it('flushes all expired updates in a single batch across multiple roots', () => {
// Same as previous test, but with two roots.
const {useEffect} = React;
function App({label}) {
Scheduler.unstable_yieldValue('Render: ' + label);
useEffect(() => {
Scheduler.unstable_yieldValue('Commit: ' + label);
});
return label;
}
function interrupt() {
ReactNoop.flushSync(() => {
ReactNoop.renderToRootWithID(null, 'other-root');
});
}
ReactNoop.act(() => {
// First, as a sanity check, assert what happens when four low pri
// updates in separate batches are all flushed in the same callback
ReactNoop.renderToRootWithID(<App label="" />, 'a');
ReactNoop.renderToRootWithID(<App label="" />, 'b');
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['Render: ']);
interrupt();
ReactNoop.renderToRootWithID(<App label="he" />, 'a');
ReactNoop.renderToRootWithID(<App label="he" />, 'b');
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['Render: ']);
interrupt();
ReactNoop.renderToRootWithID(<App label="hell" />, 'a');
ReactNoop.renderToRootWithID(<App label="hell" />, 'b');
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['Render: ']);
interrupt();
ReactNoop.renderToRootWithID(<App label="hello" />, 'a');
ReactNoop.renderToRootWithID(<App label="hello" />, 'b');
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['Render: ']);
interrupt();
// Each update flushes in a separate commit.
// Note: This isn't necessarily the ideal behavior. It might be better to
// batch all of these updates together. The fact that they don't is an
// implementation detail. The important part of this unit test is what
// happens when they expire, in which case they really should be batched to
// avoid blocking the main thread for a long time.
expect(Scheduler).toFlushAndYield([
'Render: ',
'Commit: ',
'Render: ',
'Commit: ',
'Render: he',
'Commit: he',
'Render: he',
'Commit: he',
'Render: hell',
'Commit: hell',
'Render: hell',
'Commit: hell',
'Render: hello',
'Commit: hello',
'Render: hello',
'Commit: hello',
]);
});
ReactNoop.act(() => {
// Now do the same thing over again, but this time, expire all the updates
// instead of flushing them normally.
ReactNoop.renderToRootWithID(<App label="" />, 'a');
ReactNoop.renderToRootWithID(<App label="" />, 'b');
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['Render: ']);
interrupt();
ReactNoop.renderToRootWithID(<App label="go" />, 'a');
ReactNoop.renderToRootWithID(<App label="go" />, 'b');
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['Render: ']);
interrupt();
ReactNoop.renderToRootWithID(<App label="good" />, 'a');
ReactNoop.renderToRootWithID(<App label="good" />, 'b');
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['Render: ']);
interrupt();
ReactNoop.renderToRootWithID(<App label="goodbye" />, 'a');
ReactNoop.renderToRootWithID(<App label="goodbye" />, 'b');
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['Render: ']);
interrupt();
// All the updates should render and commit in a single batch.
Scheduler.unstable_advanceTime(10000);
expect(Scheduler).toFlushExpired([
'Render: goodbye',
'Commit: goodbye',
'Render: goodbye',
]);
// Passive effect
expect(Scheduler).toFlushAndYield(['Commit: goodbye']);
});
});
// Note: This test doesn't really make sense in the new model, but we might
// want to port it once lanes are implemented.
// @gate old
it('does not throw out partially completed tree if it expires midway through', () => {
function Text({text}) {
Scheduler.unstable_yieldValue(text);
return text;
}
function App({step}) {
return (
<>
<Text text={`A${step}`} />
<Text text={`B${step}`} />
<Text text={`C${step}`} />
</>
);
}
function interrupt() {
ReactNoop.flushSync(() => {
ReactNoop.renderToRootWithID(null, 'other-root');
});
}
// First, as a sanity check, assert what happens when four low pri
// updates in separate batches are all flushed in the same callback
ReactNoop.act(() => {
ReactNoop.render(<App step={1} />);
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['A1']);
interrupt();
ReactNoop.render(<App step={2} />);
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['A1']);
interrupt();
ReactNoop.render(<App step={3} />);
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['A1']);
interrupt();
ReactNoop.render(<App step={4} />);
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['A1']);
// Each update flushes in a separate commit.
// Note: This isn't necessarily the ideal behavior. It might be better to
// batch all of these updates together. The fact that they don't is an
// implementation detail. The important part of this unit test is what
// happens when they expire, in which case they really should be batched to
// avoid blocking the main thread for a long time.
expect(Scheduler).toFlushAndYield([
// A1 already completed. Finish rendering the first level.
'B1',
'C1',
// The remaining two levels complete sequentially.
'A2',
'B2',
'C2',
'A3',
'B3',
'C3',
'A4',
'B4',
'C4',
]);
});
ReactNoop.act(() => {
// Now do the same thing over again, but this time, expire all the updates
// instead of flushing them normally.
ReactNoop.render(<App step={1} />);
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['A1']);
interrupt();
ReactNoop.render(<App step={2} />);
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['A1']);
interrupt();
ReactNoop.render(<App step={3} />);
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['A1']);
interrupt();
ReactNoop.render(<App step={4} />);
Scheduler.unstable_advanceTime(1000);
expect(Scheduler).toFlushAndYieldThrough(['A1']);
// Expire all the updates
ReactNoop.expire(10000);
expect(Scheduler).toFlushExpired([
// A1 already completed. Finish rendering the first level.
'B1',
'C1',
// Then render the remaining two levels in a single batch
'A4',
'B4',
'C4',
]);
});
});
it('when rebasing, does not exclude updates that were already committed, regardless of priority', async () => {
const {useState, useLayoutEffect} = React;

2
packages/react-reconciler/src/__tests__/ReactLazy-test.internal.js
View File

@ -1274,7 +1274,7 @@ describe('ReactLazy', () => {
expect(componentStackMessage).toContain('in Lazy');
});
// @gate enableLazyElements && enableNewReconciler
// @gate enableLazyElements
it('mount and reorder lazy elements', async () => {
class Child extends React.Component {
componentDidMount() {

33
packages/react-reconciler/src/__tests__/ReactNewContext-test.js vendored
View File

@ -42,23 +42,20 @@ describe('ReactNewContext', () => {
return dispatcher.readContext(Context, observedBits);
}
// TODO: Delete this once new API exists in both forks
function LegacyHiddenDiv({hidden, children, ...props}) {
if (gate(flags => flags.new)) {
return (
<div hidden={hidden} {...props}>
<React.unstable_LegacyHidden mode={hidden ? 'hidden' : 'visible'}>
{children}
</React.unstable_LegacyHidden>
</div>
);
} else {
return (
<div hidden={hidden} {...props}>
// Note: This is based on a similar component we use in www. We can delete
// once the extra div wrapper is no longer neccessary.
function LegacyHiddenDiv({children, mode}) {
return (
<div
hidden={
mode === 'hidden' ? 'unstable-do-not-use-legacy-hidden' : undefined
}>
<React.unstable_LegacyHidden
mode={mode === 'hidden' ? 'unstable-defer-without-hiding' : mode}>
{children}
</div>
);
}
</React.unstable_LegacyHidden>
</div>
);
}
// We have several ways of reading from context. sharedContextTests runs
@ -922,7 +919,7 @@ describe('ReactNewContext', () => {
expect(ReactNoop.getChildren()).toEqual([span(2), span(2)]);
});
// @gate enableLegacyHiddenType
// @gate experimental
it("context consumer doesn't bail out inside hidden subtree", () => {
const Context = React.createContext('dark');
const Consumer = getConsumer(Context);
@ -930,7 +927,7 @@ describe('ReactNewContext', () => {
function App({theme}) {
return (
<Context.Provider value={theme}>
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<Consumer>{value => <Text text={value} />}</Consumer>
</LegacyHiddenDiv>
</Context.Provider>

3
packages/react-reconciler/src/__tests__/ReactOffscreen-test.js vendored
View File

@ -21,7 +21,6 @@ describe('ReactOffscreen', () => {
}
// @gate experimental
// @gate new
it('unstable-defer-without-hiding should never toggle the visibility of its children', async () => {
function App({mode}) {
return (
@ -81,7 +80,6 @@ describe('ReactOffscreen', () => {
});
// @gate experimental
// @gate new
it('does not defer in legacy mode', async () => {
let setState;
function Foo() {
@ -124,7 +122,6 @@ describe('ReactOffscreen', () => {
});
// @gate experimental
// @gate new
it('does not defer in blocking mode', async () => {
let setState;
function Foo() {

33
packages/react-reconciler/src/__tests__/ReactSchedulerIntegration-test.js vendored
View File

@ -53,23 +53,20 @@ describe('ReactSchedulerIntegration', () => {
}
}
// TODO: Delete this once new API exists in both forks
function LegacyHiddenDiv({hidden, children, ...props}) {
if (gate(flags => flags.new)) {
return (
<div hidden={hidden} {...props}>
<React.unstable_LegacyHidden mode={hidden ? 'hidden' : 'visible'}>
{children}
</React.unstable_LegacyHidden>
</div>
);
} else {
return (
<div hidden={hidden} {...props}>
// Note: This is based on a similar component we use in www. We can delete
// once the extra div wrapper is no longer neccessary.
function LegacyHiddenDiv({children, mode}) {
return (
<div
hidden={
mode === 'hidden' ? 'unstable-do-not-use-legacy-hidden' : undefined
}>
<React.unstable_LegacyHidden
mode={mode === 'hidden' ? 'unstable-defer-without-hiding' : mode}>
{children}
</div>
);
}
</React.unstable_LegacyHidden>
</div>
);
}
it('flush sync has correct priority', () => {
@ -370,7 +367,7 @@ describe('ReactSchedulerIntegration', () => {
expect(Scheduler).toHaveYielded(['A', 'B', 'C']);
});
// @gate enableLegacyHiddenType
// @gate experimental
it('idle updates are not blocked by offscreen work', async () => {
function Text({text}) {
Scheduler.unstable_yieldValue(text);
@ -381,7 +378,7 @@ describe('ReactSchedulerIntegration', () => {
return (
<>
<Text text={`Visible: ` + label} />
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<Text text={`Hidden: ` + label} />
</LegacyHiddenDiv>
</>

16
packages/react-reconciler/src/__tests__/ReactSuspenseList-test.js vendored
View File

@ -294,21 +294,7 @@ describe('ReactSuspenseList', () => {
await C.resolve();
expect(Scheduler).toFlushAndYield(
gate(flags =>
flags.new
? ['C']
: [
// Note: Old reconciler has an issue where the primary fragment
// fiber isn't marked during setState, so as a compromise we
// sometimes over-render the primary child even when it hasn't
// been updated.
'Suspend! [B]',
'C',
],
),
);
expect(Scheduler).toFlushAndYield(['C']);
expect(ReactNoop).toMatchRenderedOutput(
<>

13
packages/react-reconciler/src/__tests__/ReactSuspensePlaceholder-test.internal.js
View File

@ -422,17 +422,8 @@ describe('ReactSuspensePlaceholder', () => {
expect(ReactNoop).toMatchRenderedOutput('Loading...');
expect(onRender).toHaveBeenCalledTimes(3);
if (gate(flags => flags.new)) {
expect(onRender.mock.calls[1][2]).toBe(18);
expect(onRender.mock.calls[1][3]).toBe(10);
} else {
// If we force another update while still timed out,
// but this time the Text component took 1ms longer to render.
// This should impact both actualDuration and treeBaseDuration.
expect(onRender.mock.calls[2][2]).toBe(19);
expect(onRender.mock.calls[2][3]).toBe(10);
}
expect(onRender.mock.calls[1][2]).toBe(18);
expect(onRender.mock.calls[1][3]).toBe(10);
jest.advanceTimersByTime(1000);
expect(Scheduler).toHaveYielded(['Promise resolved [Loaded]']);

196
packages/react-reconciler/src/__tests__/ReactSuspenseWithNoopRenderer-test.js vendored
View File

@ -140,23 +140,20 @@ describe('ReactSuspenseWithNoopRenderer', () => {
}
}
// TODO: Delete this once new API exists in both forks
function LegacyHiddenDiv({hidden, children, ...props}) {
if (gate(flags => flags.new)) {
return (
<div hidden={hidden} {...props}>
<React.unstable_LegacyHidden mode={hidden ? 'hidden' : 'visible'}>
{children}
</React.unstable_LegacyHidden>
</div>
);
} else {
return (
<div hidden={hidden} {...props}>
// Note: This is based on a similar component we use in www. We can delete
// once the extra div wrapper is no longer neccessary.
function LegacyHiddenDiv({children, mode}) {
return (
<div
hidden={
mode === 'hidden' ? 'unstable-do-not-use-legacy-hidden' : undefined
}>
<React.unstable_LegacyHidden
mode={mode === 'hidden' ? 'unstable-defer-without-hiding' : mode}>
{children}
</div>
);
}
</React.unstable_LegacyHidden>
</div>
);
}
it('does not restart rendering for initial render', async () => {
@ -625,28 +622,12 @@ describe('ReactSuspenseWithNoopRenderer', () => {
root.render(<App step={4} shouldSuspend={false} />);
});
expect(Scheduler).toHaveYielded(
gate(flags =>
flags.new
? [
// The new reconciler batches everything together, so it finishes
// without suspending again.
'Sibling',
'Step 4',
]
: [
// The old reconciler tries at each distinct level.
'Sibling',
'Suspend! [Step 1]',
'Sibling',
'Suspend! [Step 2]',
'Sibling',
'Suspend! [Step 3]',
'Sibling',
'Step 4',
],
),
);
expect(Scheduler).toHaveYielded([
// The new reconciler batches everything together, so it finishes without
// suspending again.
'Sibling',
'Step 4',
]);
});
it('forces an expiration after an update times out', async () => {
@ -1360,28 +1341,12 @@ describe('ReactSuspenseWithNoopRenderer', () => {
ReactNoop.renderLegacySyncRoot(<Demo />);
expect(Scheduler).toHaveYielded(
gate(flags =>
flags.new
? [
'Suspend! [Hi]',
'Loading...',
// Re-render due to lifecycle update
'Loading...',
]
: [
'Suspend! [Hi]',
'Loading...',
// Re-render due to lifecycle update
// Note: Old reconciler has an issue where the primary fragment
// fiber isn't marked during setState, so as a compromise we
// sometimes over-render the primary child even when it hasn't
// been updated.
'Suspend! [Hi]',
'Loading...',
],
),
);
expect(Scheduler).toHaveYielded([
'Suspend! [Hi]',
'Loading...',
// Re-render due to lifecycle update
'Loading...',
]);
expect(ReactNoop.getChildren()).toEqual([span('Loading...')]);
await advanceTimers(100);
expect(Scheduler).toHaveYielded(['Promise resolved [Hi]']);
@ -2880,7 +2845,6 @@ describe('ReactSuspenseWithNoopRenderer', () => {
});
// @gate experimental
// @gate enableLegacyHiddenType
it('should not render hidden content while suspended on higher pri', async () => {
function Offscreen() {
Scheduler.unstable_yieldValue('Offscreen');
@ -2892,7 +2856,7 @@ describe('ReactSuspenseWithNoopRenderer', () => {
});
return (
<>
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<Offscreen />
</LegacyHiddenDiv>
<Suspense fallback={<Text text="Loading..." />}>
@ -2936,7 +2900,6 @@ describe('ReactSuspenseWithNoopRenderer', () => {
});
// @gate experimental
// @gate enableLegacyHiddenType
it('should be able to unblock higher pri content before suspended hidden', async () => {
function Offscreen() {
Scheduler.unstable_yieldValue('Offscreen');
@ -2948,7 +2911,7 @@ describe('ReactSuspenseWithNoopRenderer', () => {
});
return (
<Suspense fallback={<Text text="Loading..." />}>
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<AsyncText text="A" ms={2000} />
<Offscreen />
</LegacyHiddenDiv>
@ -3173,49 +3136,23 @@ describe('ReactSuspenseWithNoopRenderer', () => {
});
setFallbackText('Still loading...');
expect(Scheduler).toFlushAndYield(
gate(flags =>
flags.new
? [
// First try to render the high pri update. Still suspended.
'Suspend! [C]',
'Loading...',
expect(Scheduler).toFlushAndYield([
// First try to render the high pri update. Still suspended.
'Suspend! [C]',
'Loading...',
// In the expiration times model, once the high pri update
// suspends, we can't be sure if there's additional work at a
// lower priority that might unblock the tree. We do know that
// there's a lower priority update *somehwere* in the entire
// root, though (the update to the fallback). So we try
// rendering one more time, just in case.
// TODO: We shouldn't need to do this with lanes, because we
// always know exactly which lanes have pending work in
// each tree.
'Suspend! [C]',
// In the expiration times model, once the high pri update suspends,
// we can't be sure if there's additional work at a lower priority
// that might unblock the tree. We do know that there's a lower
// priority update *somehwere* in the entire root, though (the update
// to the fallback). So we try rendering one more time, just in case.
// TODO: We shouldn't need to do this with lanes, because we always
// know exactly which lanes have pending work in each tree.
'Suspend! [C]',
// Then complete the update to the fallback.
'Still loading...',
]
: [
// In the old reconciler, we don't attempt to unhdie the
// Suspense boundary at high priority. Instead, we bailout,
// then try again at the original priority that the component
// suspended. This is mostly an implementation compromise,
// though there are some advantages to this behavior, because
// attempt to unhide could slow down the rest of the update.
//
// Render that only includes the fallback, since we bailed
// out on the primary tree.
'Loading...',
// Now try the suspended update again at the original
// priority. It's still suspended.
'Suspend! [C]',
// Then complete the update to the fallback.
'Still loading...',
],
),
);
// Then complete the update to the fallback.
'Still loading...',
]);
expect(root).toMatchRenderedOutput(
<>
<span hidden={true} prop="A" />
@ -3494,30 +3431,13 @@ describe('ReactSuspenseWithNoopRenderer', () => {
// Only the outer part can update. The inner part should still show a
// fallback because we haven't finished loading B yet. Otherwise, the
// inner text would be inconsistent with the outer text.
expect(Scheduler).toHaveYielded(
gate(flags =>
flags.new
? [
'Outer text: B',
'Outer step: 1',
'Suspend! [Inner text: B]',
'Inner step: 1',
'Loading...',
]
: [
// In the old reconciler, we first complete the outside of the
// Suspense boundary, then attempt to unhide it in a separate
// render at the original priority at which it suspended.
// First render:
'Outer text: B',
'Outer step: 1',
'Loading...',
// Second render:
'Suspend! [Inner text: B]',
'Inner step: 1',
],
),
);
expect(Scheduler).toHaveYielded([
'Outer text: B',
'Outer step: 1',
'Suspend! [Inner text: B]',
'Inner step: 1',
'Loading...',
]);
expect(root).toMatchRenderedOutput(
<>
<span prop="Outer text: B" />
@ -3636,23 +3556,7 @@ describe('ReactSuspenseWithNoopRenderer', () => {
});
});
expect(Scheduler).toHaveYielded(
gate(flags =>
flags.new
? ['Outer: B1', 'Inner: B1', 'Commit Child']
: [
// In the old reconciler, we first complete the outside of the
// Suspense boundary, then attempt to unhide it in a separate
// render at the original priority at which it suspended.
// First render:
'Outer: B1',
'Loading...',
// Second render:
'Inner: B1',
'Commit Child',
],
),
);
expect(Scheduler).toHaveYielded(['Outer: B1', 'Inner: B1', 'Commit Child']);
expect(root).toMatchRenderedOutput(
<>
<span prop="Outer: B1" />

30
packages/react-reconciler/src/__tests__/useMutableSource-test.internal.js
View File

@ -1615,27 +1615,15 @@ describe('useMutableSource', () => {
// both read the same verion of the mutable source, so we must render
// them simultaneously.
//
if (gate(flags => flags.new)) {
// In the new reconciler, we can do this with entanglement: when the
// high priority render starts, we'll also include the low pri work.
expect(Scheduler).toFlushAndYieldThrough([
'Parent: 3',
// Demonstrates that we can yield here
]);
expect(Scheduler).toFlushAndYield([
// Now finish the rest of the update
'Child: 3',
'Commit: 3, 3',
]);
} else {
// In the old reconciler, we don't have an entanglement mechanism. The
// best we can do is synchronously flush both updates.
expect(Scheduler).toFlushAndYield([
'Parent: 3',
'Child: 3',
'Commit: 3, 3',
]);
}
expect(Scheduler).toFlushAndYieldThrough([
'Parent: 3',
// Demonstrates that we can yield here
]);
expect(Scheduler).toFlushAndYield([
// Now finish the rest of the update
'Child: 3',
'Commit: 3, 3',
]);
});
});

35
packages/react-refresh/src/__tests__/ReactFresh-test.js vendored
View File

@ -75,27 +75,20 @@ describe('ReactFresh', () => {
return type;
}
// TODO: Delete this once new API exists in both forks
function LegacyHiddenDiv({hidden, children, ...props}) {
if (gate(flags => flags.new)) {
return (
<div
hidden={hidden ? 'unstable-do-not-use-legacy-hidden' : false}
{...props}>
<React.unstable_LegacyHidden mode={hidden ? 'hidden' : 'visible'}>
{children}
</React.unstable_LegacyHidden>
</div>
);
} else {
return (
<div
hidden={hidden ? 'unstable-do-not-use-legacy-hidden' : false}
{...props}>
// Note: This is based on a similar component we use in www. We can delete
// once the extra div wrapper is no longer neccessary.
function LegacyHiddenDiv({children, mode}) {
return (
<div
hidden={
mode === 'hidden' ? 'unstable-do-not-use-legacy-hidden' : undefined
}>
<React.unstable_LegacyHidden
mode={mode === 'hidden' ? 'unstable-defer-without-hiding' : mode}>
{children}
</div>
);
}
</React.unstable_LegacyHidden>
</div>
);
}
it('can preserve state for compatible types', () => {
@ -2440,7 +2433,7 @@ describe('ReactFresh', () => {
Scheduler.unstable_yieldValue('App#layout');
});
return (
<LegacyHiddenDiv hidden={offscreen}>
<LegacyHiddenDiv mode={offscreen ? 'hidden' : 'visible'}>
<Hello />
</LegacyHiddenDiv>
);

48
packages/react/src/__tests__/ReactDOMTracing-test.internal.js
View File

@ -55,27 +55,20 @@ function loadModules() {
});
}
// TODO: Delete this once new API exists in both forks
function LegacyHiddenDiv({hidden, children, ...props}) {
if (gate(flags => flags.new)) {
return (
<div
hidden={hidden ? 'unstable-do-not-use-legacy-hidden' : false}
{...props}>
<React.unstable_LegacyHidden mode={hidden ? 'hidden' : 'visible'}>
{children}
</React.unstable_LegacyHidden>
</div>
);
} else {
return (
<div
hidden={hidden ? 'unstable-do-not-use-legacy-hidden' : false}
{...props}>
// Note: This is based on a similar component we use in www. We can delete once
// the extra div wrapper is no longer neccessary.
function LegacyHiddenDiv({children, mode}) {
return (
<div
hidden={
mode === 'hidden' ? 'unstable-do-not-use-legacy-hidden' : undefined
}>
<React.unstable_LegacyHidden
mode={mode === 'hidden' ? 'unstable-defer-without-hiding' : mode}>
{children}
</div>
);
}
</React.unstable_LegacyHidden>
</div>
);
}
describe('ReactDOMTracing', () => {
@ -88,7 +81,6 @@ describe('ReactDOMTracing', () => {
describe('interaction tracing', () => {
describe('hidden', () => {
// @gate experimental
// @gate enableLegacyHiddenType
it('traces interaction through hidden subtree', () => {
const Child = () => {
const [didMount, setDidMount] = React.useState(false);
@ -110,7 +102,7 @@ describe('ReactDOMTracing', () => {
Scheduler.unstable_yieldValue('App:mount');
}, []);
return (
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<Child />
</LegacyHiddenDiv>
);
@ -166,7 +158,6 @@ describe('ReactDOMTracing', () => {
});
// @gate experimental
// @gate enableLegacyHiddenType
it('traces interaction through hidden subtree when there is other pending traced work', () => {
const Child = () => {
Scheduler.unstable_yieldValue('Child');
@ -182,7 +173,7 @@ describe('ReactDOMTracing', () => {
Scheduler.unstable_yieldValue('App:mount');
}, []);
return (
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<Child />
</LegacyHiddenDiv>
);
@ -235,7 +226,6 @@ describe('ReactDOMTracing', () => {
});
// @gate experimental
// @gate enableLegacyHiddenType
it('traces interaction through hidden subtree that schedules more idle/never work', () => {
const Child = () => {
const [didMount, setDidMount] = React.useState(false);
@ -260,7 +250,7 @@ describe('ReactDOMTracing', () => {
Scheduler.unstable_yieldValue('App:mount');
}, []);
return (
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<Child />
</LegacyHiddenDiv>
);
@ -319,7 +309,6 @@ describe('ReactDOMTracing', () => {
});
// @gate experimental
// @gate enableLegacyHiddenType
it('does not continue interactions across pre-existing idle work', () => {
const Child = () => {
Scheduler.unstable_yieldValue('Child');
@ -331,7 +320,7 @@ describe('ReactDOMTracing', () => {
const WithHiddenWork = () => {
Scheduler.unstable_yieldValue('WithHiddenWork');
return (
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<Child />
</LegacyHiddenDiv>
);
@ -421,7 +410,6 @@ describe('ReactDOMTracing', () => {
});
// @gate experimental
// @gate enableLegacyHiddenType
it('should properly trace interactions when there is work of interleaved priorities', () => {
const Child = () => {
Scheduler.unstable_yieldValue('Child');
@ -439,7 +427,7 @@ describe('ReactDOMTracing', () => {
Scheduler.unstable_yieldValue('MaybeHiddenWork:effect');
});
return flag ? (
<LegacyHiddenDiv hidden={true}>
<LegacyHiddenDiv mode="hidden">
<Child />
</LegacyHiddenDiv>
) : null;

29
packages/react/src/__tests__/ReactProfiler-test.internal.js
View File

@ -287,27 +287,14 @@ describe('Profiler', () => {
</div>,
);
// Should be called two times:
// 1. To compute the update expiration time
// 2. To record the commit time
// No additional calls from ProfilerTimer are expected.
expect(Scheduler).toHaveYielded(
gate(flags =>
flags.new
? [
// The new reconciler reads the current time in more places,
// to detect starvation. This is unrelated to the profiler,
// which happens to use the same Scheduler method that we
// mocked above. We should rewrite this test so that it's
// less fragile.
'read current time',
'read current time',
'read current time',
'read current time',
]
: ['read current time', 'read current time'],
),
);
// TODO: unstable_now is called by more places than just the profiler.
// Rewrite this test so it's less fragile.
expect(Scheduler).toHaveYielded([
'read current time',
'read current time',
'read current time',
'read current time',
]);
// Restore original mock
jest.mock('scheduler', () =>

9
packages/shared/ReactFeatureFlags.js
View File

@ -118,9 +118,8 @@ export const enableModernEventSystem = false;
export const enableLegacyFBSupport = false;
// Updates that occur in the render phase are not officially supported. But when
// they do occur, in the new reconciler, we defer them to a subsequent render by
// picking a lane that's not currently rendering. We treat them the same as if
// they came from an interleaved event. In the old reconciler, we use whatever
// expiration time is currently rendering. Remove this flag once we have
// migrated to the new behavior.
// they do occur, we defer them to a subsequent render by picking a lane that's
// not currently rendering. We treat them the same as if they came from an
// interleaved event. Remove this flag once we have migrated to the
// new behavior.
export const deferRenderPhaseUpdateToNextBatch = true;

4
packages/shared/forks/ReactFeatureFlags.www.js
View File

@ -23,7 +23,6 @@ export const {
replayFailedUnitOfWorkWithInvokeGuardedCallback,
enableFilterEmptyStringAttributesDOM,
enableLegacyFBSupport,
enableDebugTracing,
deferRenderPhaseUpdateToNextBatch,
} = dynamicFeatureFlags;
@ -79,6 +78,9 @@ export const enableModernEventSystem = true;
// to the correct value.
export const enableNewReconciler = __VARIANT__;
// TODO: This does not currently exist in the Lanes implementation.
export const enableDebugTracing = false;
// Flow magic to verify the exports of this file match the original version.
// eslint-disable-next-line no-unused-vars
type Check<_X, Y: _X, X: Y = _X> = null;

4
scripts/eslint-rules/__tests__/no-cross-fork-imports-test.internal.js
View File

@ -54,6 +54,7 @@ ruleTester.run('eslint-rules/no-cross-fork-imports', rule, {
'from the new fork.',
},
],
output: "import {scheduleUpdateOnFiber} from './ReactFiberWorkLoop.old';",
},
{
code:
@ -66,6 +67,7 @@ ruleTester.run('eslint-rules/no-cross-fork-imports', rule, {
'from the new fork.',
},
],
output: "import {scheduleUpdateOnFiber} from './ReactFiberWorkLoop.old';",
},
{
code: "import {scheduleUpdateOnFiber} from './ReactFiberWorkLoop.old';",
@ -77,6 +79,7 @@ ruleTester.run('eslint-rules/no-cross-fork-imports', rule, {
'from the old fork.',
},
],
output: "import {scheduleUpdateOnFiber} from './ReactFiberWorkLoop.new';",
},
{
code:
@ -89,6 +92,7 @@ ruleTester.run('eslint-rules/no-cross-fork-imports', rule, {
'from the old fork.',
},
],
output: "import {scheduleUpdateOnFiber} from './ReactFiberWorkLoop.new';",
},
],
});

84
scripts/eslint-rules/no-cross-fork-imports.js
View File

@ -17,38 +17,60 @@ function isNewFork(filename) {
return filename.endsWith('.new.js') || filename.endsWith('.new');
}
module.exports = context => {
const sourceFilename = context.getFilename();
module.exports = {
meta: {
type: 'problem',
fixable: 'code',
},
create(context) {
const sourceFilename = context.getFilename();
if (isOldFork(sourceFilename)) {
return {
ImportDeclaration(node) {
const importFilename = node.source.value;
if (isNewFork(importFilename)) {
context.report(
node,
'A module that belongs to the old fork cannot import a module ' +
'from the new fork.'
);
}
},
};
}
if (isOldFork(sourceFilename)) {
return {
ImportDeclaration(node) {
const importSourceNode = node.source;
const filename = importSourceNode.value;
if (isNewFork(filename)) {
context.report({
node: importSourceNode,
message:
'A module that belongs to the old fork cannot import a module ' +
'from the new fork.',
fix(fixer) {
return fixer.replaceText(
importSourceNode,
`'${filename.replace(/\.new(\.js)?$/, '.old')}'`
);
},
});
}
},
};
}
if (isNewFork(sourceFilename)) {
return {
ImportDeclaration(node) {
const importFilename = node.source.value;
if (isOldFork(importFilename)) {
context.report(
node,
'A module that belongs to the new fork cannot import a module ' +
'from the old fork.'
);
}
},
};
}
if (isNewFork(sourceFilename)) {
return {
ImportDeclaration(node) {
const importSourceNode = node.source;
const filename = importSourceNode.value;
if (isOldFork(filename)) {
context.report({
node: importSourceNode,
message:
'A module that belongs to the new fork cannot import a module ' +
'from the old fork.',
fix(fixer) {
return fixer.replaceText(
importSourceNode,
`'${filename.replace(/\.old(\.js)?$/, '.new')}'`
);
},
});
}
},
};
}
return {};
return {};
},
};

4
scripts/jest/TestFlags.js
View File

@ -76,10 +76,6 @@ function getTestFlags() {
classic: releaseChannel === 'classic',
www,
// Using this more specific flag so it's easier to clean up later
enableLegacyHiddenType:
featureFlags.enableNewReconciler === false || __EXPERIMENTAL__,
...featureFlags,
...environmentFlags,
},

44
scripts/merge-fork/replace-fork.js Normal file
View File

@ -0,0 +1,44 @@
'use strict';
/* eslint-disable no-for-of-loops/no-for-of-loops */
// Copies the contents of the new fork into the old fork
const {promisify} = require('util');
const glob = promisify(require('glob'));
const fs = require('fs');
const stat = promisify(fs.stat);
const copyFile = promisify(fs.copyFile);
async function main() {
const oldFilenames = await glob('packages/react-reconciler/**/*.old.js');
await Promise.all(oldFilenames.map(unforkFile));
}
async function unforkFile(oldFilename) {
let oldStats;
try {
oldStats = await stat(oldFilename);
} catch {
return;
}
if (!oldStats.isFile()) {
return;
}
const newFilename = oldFilename.replace(/\.old.js$/, '.new.js');
let newStats;
try {
newStats = await stat(newFilename);
} catch {
return;
}
if (!newStats.isFile()) {
return;
}
await copyFile(newFilename, oldFilename);
}
main();