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Revert "Add SyncHydrationLane" #25708

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Nov 18, 2022
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Revert "Add SyncHydrationLane" #25708

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440 changes: 220 additions & 220 deletions packages/react-devtools-shared/src/__tests__/TimelineProfiler-test.js
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172 changes: 86 additions & 86 deletions packages/react-devtools-shared/src/__tests__/preprocessData-test.js
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115 changes: 0 additions & 115 deletions packages/react-dom/src/__tests__/ReactDOMServerSelectiveHydration-test.internal.js
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,6 @@ let Suspense;
let act;

let IdleEventPriority;
let ContinuousEventPriority;

function dispatchMouseHoverEvent(to, from) {
if (!to) {
Expand Down Expand Up @@ -111,18 +110,6 @@ function TODO_scheduleIdleDOMSchedulerTask(fn) {
});
}

function TODO_scheduleContinuousSchedulerTask(fn) {
ReactDOM.unstable_runWithPriority(ContinuousEventPriority, () => {
const prevEvent = window.event;
window.event = {type: 'message'};
try {
fn();
} finally {
window.event = prevEvent;
}
});
}

describe('ReactDOMServerSelectiveHydration', () => {
beforeEach(() => {
jest.resetModuleRegistry();
Expand All @@ -138,8 +125,6 @@ describe('ReactDOMServerSelectiveHydration', () => {
Suspense = React.Suspense;

IdleEventPriority = require('react-reconciler/constants').IdleEventPriority;
ContinuousEventPriority = require('react-reconciler/constants')
.ContinuousEventPriority;
});

it('hydrates the target boundary synchronously during a click', async () => {
Expand Down Expand Up @@ -1785,104 +1770,4 @@ describe('ReactDOMServerSelectiveHydration', () => {

document.body.removeChild(container);
});

it('can force hydration in response to sync update', () => {
function Child({text}) {
Scheduler.unstable_yieldValue(`Child ${text}`);
return <span ref={ref => (spanRef = ref)}>{text}</span>;
}
function App({text}) {
Scheduler.unstable_yieldValue(`App ${text}`);
return (
<div>
<Suspense fallback={null}>
<Child text={text} />
</Suspense>
</div>
);
}

let spanRef;
const finalHTML = ReactDOMServer.renderToString(<App text="A" />);
expect(Scheduler).toHaveYielded(['App A', 'Child A']);
const container = document.createElement('div');
document.body.appendChild(container);
container.innerHTML = finalHTML;
const initialSpan = container.getElementsByTagName('span')[0];
const root = ReactDOMClient.hydrateRoot(container, <App text="A" />);
expect(Scheduler).toFlushUntilNextPaint(['App A']);

ReactDOM.flushSync(() => {
root.render(<App text="B" />);
});
expect(Scheduler).toHaveYielded(['App B', 'Child A', 'App B', 'Child B']);
expect(initialSpan).toBe(spanRef);
});

// @gate experimental || www
it('can force hydration in response to continuous update', () => {
function Child({text}) {
Scheduler.unstable_yieldValue(`Child ${text}`);
return <span ref={ref => (spanRef = ref)}>{text}</span>;
}
function App({text}) {
Scheduler.unstable_yieldValue(`App ${text}`);
return (
<div>
<Suspense fallback={null}>
<Child text={text} />
</Suspense>
</div>
);
}

let spanRef;
const finalHTML = ReactDOMServer.renderToString(<App text="A" />);
expect(Scheduler).toHaveYielded(['App A', 'Child A']);
const container = document.createElement('div');
document.body.appendChild(container);
container.innerHTML = finalHTML;
const initialSpan = container.getElementsByTagName('span')[0];
const root = ReactDOMClient.hydrateRoot(container, <App text="A" />);
expect(Scheduler).toFlushUntilNextPaint(['App A']);

TODO_scheduleContinuousSchedulerTask(() => {
root.render(<App text="B" />);
});
expect(Scheduler).toFlushAndYield(['App B', 'Child A', 'App B', 'Child B']);
expect(initialSpan).toBe(spanRef);
});

it('can force hydration in response to default update', () => {
function Child({text}) {
Scheduler.unstable_yieldValue(`Child ${text}`);
return <span ref={ref => (spanRef = ref)}>{text}</span>;
}
function App({text}) {
Scheduler.unstable_yieldValue(`App ${text}`);
return (
<div>
<Suspense fallback={null}>
<Child text={text} />
</Suspense>
</div>
);
}

let spanRef;
const finalHTML = ReactDOMServer.renderToString(<App text="A" />);
expect(Scheduler).toHaveYielded(['App A', 'Child A']);
const container = document.createElement('div');
document.body.appendChild(container);
container.innerHTML = finalHTML;
const initialSpan = container.getElementsByTagName('span')[0];
const root = ReactDOMClient.hydrateRoot(container, <App text="A" />);
expect(Scheduler).toFlushUntilNextPaint(['App A']);

ReactDOM.unstable_batchedUpdates(() => {
root.render(<App text="B" />);
});
expect(Scheduler).toFlushAndYield(['App B', 'Child A', 'App B', 'Child B']);
expect(initialSpan).toBe(spanRef);
});
});
82 changes: 37 additions & 45 deletions packages/react-reconciler/src/ReactFiberLane.new.js
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Original file line number Diff line number Diff line change
Expand Up @@ -36,39 +36,39 @@ export const TotalLanes = 31;
export const NoLanes: Lanes = /* */ 0b0000000000000000000000000000000;
export const NoLane: Lane = /* */ 0b0000000000000000000000000000000;

export const SyncHydrationLane: Lane = /* */ 0b0000000000000000000000000000001;
export const SyncLane: Lane = /* */ 0b0000000000000000000000000000010;

export const InputContinuousHydrationLane: Lane = /* */ 0b0000000000000000000000000000100;
export const InputContinuousLane: Lane = /* */ 0b0000000000000000000000000001000;

export const DefaultHydrationLane: Lane = /* */ 0b0000000000000000000000000010000;
export const DefaultLane: Lane = /* */ 0b0000000000000000000000000100000;

const TransitionHydrationLane: Lane = /* */ 0b0000000000000000000000001000000;
const TransitionLanes: Lanes = /* */ 0b0000000011111111111111110000000;
const TransitionLane1: Lane = /* */ 0b0000000000000000000000010000000;
const TransitionLane2: Lane = /* */ 0b0000000000000000000000100000000;
const TransitionLane3: Lane = /* */ 0b0000000000000000000001000000000;
const TransitionLane4: Lane = /* */ 0b0000000000000000000010000000000;
const TransitionLane5: Lane = /* */ 0b0000000000000000000100000000000;
const TransitionLane6: Lane = /* */ 0b0000000000000000001000000000000;
const TransitionLane7: Lane = /* */ 0b0000000000000000010000000000000;
const TransitionLane8: Lane = /* */ 0b0000000000000000100000000000000;
const TransitionLane9: Lane = /* */ 0b0000000000000001000000000000000;
const TransitionLane10: Lane = /* */ 0b0000000000000010000000000000000;
const TransitionLane11: Lane = /* */ 0b0000000000000100000000000000000;
const TransitionLane12: Lane = /* */ 0b0000000000001000000000000000000;
const TransitionLane13: Lane = /* */ 0b0000000000010000000000000000000;
const TransitionLane14: Lane = /* */ 0b0000000000100000000000000000000;
const TransitionLane15: Lane = /* */ 0b0000000001000000000000000000000;
const TransitionLane16: Lane = /* */ 0b0000000010000000000000000000000;

const RetryLanes: Lanes = /* */ 0b0000111100000000000000000000000;
const RetryLane1: Lane = /* */ 0b0000000100000000000000000000000;
const RetryLane2: Lane = /* */ 0b0000001000000000000000000000000;
const RetryLane3: Lane = /* */ 0b0000010000000000000000000000000;
const RetryLane4: Lane = /* */ 0b0000100000000000000000000000000;
export const SyncLane: Lane = /* */ 0b0000000000000000000000000000001;

export const InputContinuousHydrationLane: Lane = /* */ 0b0000000000000000000000000000010;
export const InputContinuousLane: Lane = /* */ 0b0000000000000000000000000000100;

export const DefaultHydrationLane: Lane = /* */ 0b0000000000000000000000000001000;
export const DefaultLane: Lane = /* */ 0b0000000000000000000000000010000;

const TransitionHydrationLane: Lane = /* */ 0b0000000000000000000000000100000;
const TransitionLanes: Lanes = /* */ 0b0000000001111111111111111000000;
const TransitionLane1: Lane = /* */ 0b0000000000000000000000001000000;
const TransitionLane2: Lane = /* */ 0b0000000000000000000000010000000;
const TransitionLane3: Lane = /* */ 0b0000000000000000000000100000000;
const TransitionLane4: Lane = /* */ 0b0000000000000000000001000000000;
const TransitionLane5: Lane = /* */ 0b0000000000000000000010000000000;
const TransitionLane6: Lane = /* */ 0b0000000000000000000100000000000;
const TransitionLane7: Lane = /* */ 0b0000000000000000001000000000000;
const TransitionLane8: Lane = /* */ 0b0000000000000000010000000000000;
const TransitionLane9: Lane = /* */ 0b0000000000000000100000000000000;
const TransitionLane10: Lane = /* */ 0b0000000000000001000000000000000;
const TransitionLane11: Lane = /* */ 0b0000000000000010000000000000000;
const TransitionLane12: Lane = /* */ 0b0000000000000100000000000000000;
const TransitionLane13: Lane = /* */ 0b0000000000001000000000000000000;
const TransitionLane14: Lane = /* */ 0b0000000000010000000000000000000;
const TransitionLane15: Lane = /* */ 0b0000000000100000000000000000000;
const TransitionLane16: Lane = /* */ 0b0000000001000000000000000000000;

const RetryLanes: Lanes = /* */ 0b0000111110000000000000000000000;
const RetryLane1: Lane = /* */ 0b0000000010000000000000000000000;
const RetryLane2: Lane = /* */ 0b0000000100000000000000000000000;
const RetryLane3: Lane = /* */ 0b0000001000000000000000000000000;
const RetryLane4: Lane = /* */ 0b0000010000000000000000000000000;
const RetryLane5: Lane = /* */ 0b0000100000000000000000000000000;

export const SomeRetryLane: Lane = RetryLane1;

Expand All @@ -85,9 +85,6 @@ export const OffscreenLane: Lane = /* */ 0b1000000000000000000
// It should be kept in sync with the Lanes values above.
export function getLabelForLane(lane: Lane): string | void {
if (enableSchedulingProfiler) {
if (lane & SyncHydrationLane) {
return 'SyncHydrationLane';
}
if (lane & SyncLane) {
return 'Sync';
}
Expand Down Expand Up @@ -134,8 +131,6 @@ let nextRetryLane: Lane = RetryLane1;

function getHighestPriorityLanes(lanes: Lanes | Lane): Lanes {
switch (getHighestPriorityLane(lanes)) {
case SyncHydrationLane:
return SyncHydrationLane;
case SyncLane:
return SyncLane;
case InputContinuousHydrationLane:
Expand Down Expand Up @@ -169,6 +164,7 @@ function getHighestPriorityLanes(lanes: Lanes | Lane): Lanes {
case RetryLane2:
case RetryLane3:
case RetryLane4:
case RetryLane5:
return lanes & RetryLanes;
case SelectiveHydrationLane:
return SelectiveHydrationLane;
Expand Down Expand Up @@ -331,7 +327,6 @@ export function getMostRecentEventTime(root: FiberRoot, lanes: Lanes): number {

function computeExpirationTime(lane: Lane, currentTime: number) {
switch (lane) {
case SyncHydrationLane:
case SyncLane:
case InputContinuousHydrationLane:
case InputContinuousLane:
Expand Down Expand Up @@ -369,6 +364,7 @@ function computeExpirationTime(lane: Lane, currentTime: number) {
case RetryLane2:
case RetryLane3:
case RetryLane4:
case RetryLane5:
// TODO: Retries should be allowed to expire if they are CPU bound for
// too long, but when I made this change it caused a spike in browser
// crashes. There must be some other underlying bug; not super urgent but
Expand Down Expand Up @@ -463,7 +459,7 @@ export function getLanesToRetrySynchronouslyOnError(
}

export function includesSyncLane(lanes: Lanes): boolean {
return (lanes & (SyncLane | SyncHydrationLane)) !== NoLanes;
return (lanes & SyncLane) !== NoLanes;
}

export function includesNonIdleWork(lanes: Lanes): boolean {
Expand All @@ -473,8 +469,6 @@ export function includesOnlyRetries(lanes: Lanes): boolean {
return (lanes & RetryLanes) === lanes;
}
export function includesOnlyNonUrgentLanes(lanes: Lanes): boolean {
// TODO: Should hydration lanes be included here? This function is only
// used in `updateDeferredValueImpl`.
const UrgentLanes = SyncLane | InputContinuousLane | DefaultLane;
return (lanes & UrgentLanes) === NoLanes;
}
Expand Down Expand Up @@ -755,9 +749,6 @@ export function getBumpedLaneForHydration(

let lane;
switch (renderLane) {
case SyncLane:
lane = SyncHydrationLane;
break;
case InputContinuousLane:
lane = InputContinuousHydrationLane;
break;
Expand All @@ -784,6 +775,7 @@ export function getBumpedLaneForHydration(
case RetryLane2:
case RetryLane3:
case RetryLane4:
case RetryLane5:
lane = TransitionHydrationLane;
break;
case IdleLane:
Expand Down
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