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This wasn't forked previously because Lane and associated types are
opaque, and they leak into non-reconciler packages. So forking the type
would also require forking all those other packages.

But I really want to use the reconciler fork infra for lanes changes.
So I made them no longer opaque.

Another possible solution would be to add separate `new` and `old`
fields to the Fiber type, like I did when migrating from expiration
times. But that seems so excessive. This seems fine.

But we should still treat them like they're opaque and only do lanes
manipulation in the ReactFiberLane module. At least until the model
stabilizes more. We'll just need to enforce this with discipline
instead of with the type system.
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acdlite committed Dec 3, 2020
1 parent 41c5d00 commit 4ab5407
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Showing 44 changed files with 944 additions and 69 deletions.
25 changes: 21 additions & 4 deletions packages/react-dom/src/events/ReactDOMEventListener.js
Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,7 @@ import {getClosestInstanceFromNode} from '../client/ReactDOMComponentTree';
import {
enableLegacyFBSupport,
decoupleUpdatePriorityFromScheduler,
enableNewReconciler,
} from 'shared/ReactFeatureFlags';
import {
UserBlockingEvent,
Expand All @@ -53,11 +54,27 @@ import {
flushDiscreteUpdatesIfNeeded,
discreteUpdates,
} from './ReactDOMUpdateBatching';

import {
InputContinuousLanePriority as InputContinuousLanePriority_old,
getCurrentUpdateLanePriority as getCurrentUpdateLanePriority_old,
setCurrentUpdateLanePriority as setCurrentUpdateLanePriority_old,
} from 'react-reconciler/src/ReactFiberLane.old';
import {
InputContinuousLanePriority,
getCurrentUpdateLanePriority,
setCurrentUpdateLanePriority,
} from 'react-reconciler/src/ReactFiberLane';
InputContinuousLanePriority as InputContinuousLanePriority_new,
getCurrentUpdateLanePriority as getCurrentUpdateLanePriority_new,
setCurrentUpdateLanePriority as setCurrentUpdateLanePriority_new,
} from 'react-reconciler/src/ReactFiberLane.new';

const InputContinuousLanePriority = enableNewReconciler
? InputContinuousLanePriority_new
: InputContinuousLanePriority_old;
const getCurrentUpdateLanePriority = enableNewReconciler
? getCurrentUpdateLanePriority_new
: getCurrentUpdateLanePriority_old;
const setCurrentUpdateLanePriority = enableNewReconciler
? setCurrentUpdateLanePriority_new
: setCurrentUpdateLanePriority_old;

const {
unstable_UserBlockingPriority: UserBlockingPriority,
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2 changes: 1 addition & 1 deletion packages/react-dom/src/events/ReactDOMEventReplaying.js
Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@ import type {Container, SuspenseInstance} from '../client/ReactDOMHostConfig';
import type {DOMEventName} from '../events/DOMEventNames';
import type {EventSystemFlags} from './EventSystemFlags';
import type {FiberRoot} from 'react-reconciler/src/ReactInternalTypes';
import type {LanePriority} from 'react-reconciler/src/ReactFiberLane';
import type {LanePriority} from 'react-reconciler/src/ReactFiberLane.old';

import {enableSelectiveHydration} from 'shared/ReactFeatureFlags';
import {
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2 changes: 1 addition & 1 deletion packages/react-reconciler/src/DebugTracing.js
Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@
* @flow
*/

import type {Lane, Lanes} from './ReactFiberLane';
import type {Lane, Lanes} from './ReactFiberLane.old';
import type {Wakeable} from 'shared/ReactTypes';

import {enableDebugTracing} from 'shared/ReactFeatureFlags';
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2 changes: 1 addition & 1 deletion packages/react-reconciler/src/ReactChildFiber.new.js
Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@
import type {ReactElement} from 'shared/ReactElementType';
import type {ReactPortal} from 'shared/ReactTypes';
import type {Fiber} from './ReactInternalTypes';
import type {Lanes} from './ReactFiberLane';
import type {Lanes} from './ReactFiberLane.new';

import getComponentName from 'shared/getComponentName';
import {Placement, Deletion} from './ReactFiberFlags';
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2 changes: 1 addition & 1 deletion packages/react-reconciler/src/ReactChildFiber.old.js
Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@
import type {ReactElement} from 'shared/ReactElementType';
import type {ReactPortal} from 'shared/ReactTypes';
import type {Fiber} from './ReactInternalTypes';
import type {Lanes} from './ReactFiberLane';
import type {Lanes} from './ReactFiberLane.old';

import getComponentName from 'shared/getComponentName';
import {Placement, Deletion} from './ReactFiberFlags';
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4 changes: 2 additions & 2 deletions packages/react-reconciler/src/ReactFiber.new.js
Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@ import type {Fiber} from './ReactInternalTypes';
import type {RootTag} from './ReactRootTags';
import type {WorkTag} from './ReactWorkTags';
import type {TypeOfMode} from './ReactTypeOfMode';
import type {Lanes} from './ReactFiberLane';
import type {Lanes} from './ReactFiberLane.new';
import type {SuspenseInstance} from './ReactFiberHostConfig';
import type {OffscreenProps} from './ReactFiberOffscreenComponent';

Expand Down Expand Up @@ -63,7 +63,7 @@ import {
resolveFunctionForHotReloading,
resolveForwardRefForHotReloading,
} from './ReactFiberHotReloading.new';
import {NoLanes} from './ReactFiberLane';
import {NoLanes} from './ReactFiberLane.new';
import {
NoMode,
ConcurrentMode,
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4 changes: 2 additions & 2 deletions packages/react-reconciler/src/ReactFiber.old.js
Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@ import type {Fiber} from './ReactInternalTypes';
import type {RootTag} from './ReactRootTags';
import type {WorkTag} from './ReactWorkTags';
import type {TypeOfMode} from './ReactTypeOfMode';
import type {Lanes} from './ReactFiberLane';
import type {Lanes} from './ReactFiberLane.old';
import type {SuspenseInstance} from './ReactFiberHostConfig';
import type {OffscreenProps} from './ReactFiberOffscreenComponent';

Expand Down Expand Up @@ -63,7 +63,7 @@ import {
resolveFunctionForHotReloading,
resolveForwardRefForHotReloading,
} from './ReactFiberHotReloading.old';
import {NoLanes} from './ReactFiberLane';
import {NoLanes} from './ReactFiberLane.old';
import {
NoMode,
ConcurrentMode,
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4 changes: 2 additions & 2 deletions packages/react-reconciler/src/ReactFiberBeginWork.new.js
Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@ import type {ReactProviderType, ReactContext} from 'shared/ReactTypes';
import type {LazyComponent as LazyComponentType} from 'react/src/ReactLazy';
import type {Fiber} from './ReactInternalTypes';
import type {FiberRoot} from './ReactInternalTypes';
import type {Lanes, Lane} from './ReactFiberLane';
import type {Lanes, Lane} from './ReactFiberLane.new';
import type {MutableSource} from 'shared/ReactTypes';
import type {
SuspenseState,
Expand Down Expand Up @@ -113,7 +113,7 @@ import {
removeLanes,
mergeLanes,
getBumpedLaneForHydration,
} from './ReactFiberLane';
} from './ReactFiberLane.new';
import {
ConcurrentMode,
NoMode,
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4 changes: 2 additions & 2 deletions packages/react-reconciler/src/ReactFiberBeginWork.old.js
Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@ import type {ReactProviderType, ReactContext} from 'shared/ReactTypes';
import type {LazyComponent as LazyComponentType} from 'react/src/ReactLazy';
import type {Fiber} from './ReactInternalTypes';
import type {FiberRoot} from './ReactInternalTypes';
import type {Lanes, Lane} from './ReactFiberLane';
import type {Lanes, Lane} from './ReactFiberLane.old';
import type {MutableSource} from 'shared/ReactTypes';
import type {
SuspenseState,
Expand Down Expand Up @@ -113,7 +113,7 @@ import {
removeLanes,
mergeLanes,
getBumpedLaneForHydration,
} from './ReactFiberLane';
} from './ReactFiberLane.old';
import {
ConcurrentMode,
NoMode,
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4 changes: 2 additions & 2 deletions packages/react-reconciler/src/ReactFiberClassComponent.new.js
Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@
*/

import type {Fiber} from './ReactInternalTypes';
import type {Lanes} from './ReactFiberLane';
import type {Lanes} from './ReactFiberLane.new';
import type {UpdateQueue} from './ReactUpdateQueue.new';

import * as React from 'react';
Expand Down Expand Up @@ -42,7 +42,7 @@ import {
initializeUpdateQueue,
cloneUpdateQueue,
} from './ReactUpdateQueue.new';
import {NoLanes} from './ReactFiberLane';
import {NoLanes} from './ReactFiberLane.new';
import {
cacheContext,
getMaskedContext,
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4 changes: 2 additions & 2 deletions packages/react-reconciler/src/ReactFiberClassComponent.old.js
Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@
*/

import type {Fiber} from './ReactInternalTypes';
import type {Lanes} from './ReactFiberLane';
import type {Lanes} from './ReactFiberLane.old';
import type {UpdateQueue} from './ReactUpdateQueue.old';

import * as React from 'react';
Expand Down Expand Up @@ -42,7 +42,7 @@ import {
initializeUpdateQueue,
cloneUpdateQueue,
} from './ReactUpdateQueue.old';
import {NoLanes} from './ReactFiberLane';
import {NoLanes} from './ReactFiberLane.old';
import {
cacheContext,
getMaskedContext,
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2 changes: 1 addition & 1 deletion packages/react-reconciler/src/ReactFiberCommitWork.new.js
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,7 @@ import type {
} from './ReactFiberHostConfig';
import type {Fiber} from './ReactInternalTypes';
import type {FiberRoot} from './ReactInternalTypes';
import type {Lanes} from './ReactFiberLane';
import type {Lanes} from './ReactFiberLane.new';
import type {SuspenseState} from './ReactFiberSuspenseComponent.new';
import type {UpdateQueue} from './ReactUpdateQueue.new';
import type {FunctionComponentUpdateQueue} from './ReactFiberHooks.new';
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2 changes: 1 addition & 1 deletion packages/react-reconciler/src/ReactFiberCommitWork.old.js
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,7 @@ import type {
} from './ReactFiberHostConfig';
import type {Fiber} from './ReactInternalTypes';
import type {FiberRoot} from './ReactInternalTypes';
import type {Lanes} from './ReactFiberLane';
import type {Lanes} from './ReactFiberLane.old';
import type {SuspenseState} from './ReactFiberSuspenseComponent.old';
import type {UpdateQueue} from './ReactUpdateQueue.old';
import type {FunctionComponentUpdateQueue} from './ReactFiberHooks.old';
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4 changes: 2 additions & 2 deletions packages/react-reconciler/src/ReactFiberCompleteWork.new.js
Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@
*/

import type {Fiber} from './ReactInternalTypes';
import type {Lanes} from './ReactFiberLane';
import type {Lanes} from './ReactFiberLane.new';
import type {
ReactFundamentalComponentInstance,
ReactScopeInstance,
Expand Down Expand Up @@ -130,7 +130,7 @@ import {
getRenderTargetTime,
} from './ReactFiberWorkLoop.new';
import {createFundamentalStateInstance} from './ReactFiberFundamental.new';
import {OffscreenLane, SomeRetryLane} from './ReactFiberLane';
import {OffscreenLane, SomeRetryLane} from './ReactFiberLane.new';
import {resetChildFibers} from './ReactChildFiber.new';
import {createScopeInstance} from './ReactFiberScope.new';
import {transferActualDuration} from './ReactProfilerTimer.new';
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4 changes: 2 additions & 2 deletions packages/react-reconciler/src/ReactFiberCompleteWork.old.js
Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@
*/

import type {Fiber} from './ReactInternalTypes';
import type {Lanes} from './ReactFiberLane';
import type {Lanes} from './ReactFiberLane.old';
import type {
ReactFundamentalComponentInstance,
ReactScopeInstance,
Expand Down Expand Up @@ -130,7 +130,7 @@ import {
getRenderTargetTime,
} from './ReactFiberWorkLoop.old';
import {createFundamentalStateInstance} from './ReactFiberFundamental.old';
import {OffscreenLane, SomeRetryLane} from './ReactFiberLane';
import {OffscreenLane, SomeRetryLane} from './ReactFiberLane.old';
import {resetChildFibers} from './ReactChildFiber.old';
import {createScopeInstance} from './ReactFiberScope.old';
import {transferActualDuration} from './ReactProfilerTimer.old';
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4 changes: 2 additions & 2 deletions packages/react-reconciler/src/ReactFiberHooks.new.js
Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@ import type {
ReactContext,
} from 'shared/ReactTypes';
import type {Fiber, Dispatcher, HookType} from './ReactInternalTypes';
import type {Lanes, Lane} from './ReactFiberLane';
import type {Lanes, Lane} from './ReactFiberLane.new';
import type {HookFlags} from './ReactHookEffectTags';
import type {ReactPriorityLevel} from './ReactInternalTypes';
import type {FiberRoot} from './ReactInternalTypes';
Expand Down Expand Up @@ -44,7 +44,7 @@ import {
setCurrentUpdateLanePriority,
higherLanePriority,
DefaultLanePriority,
} from './ReactFiberLane';
} from './ReactFiberLane.new';
import {readContext} from './ReactFiberNewContext.new';
import {
Update as UpdateEffect,
Expand Down
4 changes: 2 additions & 2 deletions packages/react-reconciler/src/ReactFiberHooks.old.js
Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@ import type {
ReactContext,
} from 'shared/ReactTypes';
import type {Fiber, Dispatcher, HookType} from './ReactInternalTypes';
import type {Lanes, Lane} from './ReactFiberLane';
import type {Lanes, Lane} from './ReactFiberLane.old';
import type {HookFlags} from './ReactHookEffectTags';
import type {ReactPriorityLevel} from './ReactInternalTypes';
import type {FiberRoot} from './ReactInternalTypes';
Expand Down Expand Up @@ -44,7 +44,7 @@ import {
setCurrentUpdateLanePriority,
higherLanePriority,
DefaultLanePriority,
} from './ReactFiberLane';
} from './ReactFiberLane.old';
import {readContext} from './ReactFiberNewContext.old';
import {
Update as UpdateEffect,
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,7 @@ import {
} from './ReactFiberWorkLoop.new';
import {updateContainer} from './ReactFiberReconciler.new';
import {emptyContextObject} from './ReactFiberContext.new';
import {SyncLane, NoTimestamp} from './ReactFiberLane';
import {SyncLane, NoTimestamp} from './ReactFiberLane.new';
import {
ClassComponent,
FunctionComponent,
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,7 @@ import {
} from './ReactFiberWorkLoop.old';
import {updateContainer} from './ReactFiberReconciler.old';
import {emptyContextObject} from './ReactFiberContext.old';
import {SyncLane, NoTimestamp} from './ReactFiberLane';
import {SyncLane, NoTimestamp} from './ReactFiberLane.old';
import {
ClassComponent,
FunctionComponent,
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Original file line number Diff line number Diff line change
Expand Up @@ -55,7 +55,7 @@ import {
didNotFindHydratableSuspenseInstance,
} from './ReactFiberHostConfig';
import {enableSuspenseServerRenderer} from 'shared/ReactFeatureFlags';
import {OffscreenLane} from './ReactFiberLane';
import {OffscreenLane} from './ReactFiberLane.new';

// The deepest Fiber on the stack involved in a hydration context.
// This may have been an insertion or a hydration.
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -55,7 +55,7 @@ import {
didNotFindHydratableSuspenseInstance,
} from './ReactFiberHostConfig';
import {enableSuspenseServerRenderer} from 'shared/ReactFeatureFlags';
import {OffscreenLane} from './ReactFiberLane';
import {OffscreenLane} from './ReactFiberLane.old';

// The deepest Fiber on the stack involved in a hydration context.
// This may have been an insertion or a hydration.
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,9 @@

import type {FiberRoot, ReactPriorityLevel} from './ReactInternalTypes';

export opaque type LanePriority =
// TODO: Ideally these types would be opaque but that doesn't work well with
// our reconciler fork infra, since these leak into non-reconciler packages.
export type LanePriority =
| 0
| 1
| 2
Expand All @@ -28,9 +30,10 @@ export opaque type LanePriority =
| 15
| 16
| 17;
export opaque type Lanes = number;
export opaque type Lane = number;
export opaque type LaneMap<T> = Array<T>;

export type Lanes = number;
export type Lane = number;
export type LaneMap<T> = Array<T>;

import invariant from 'shared/invariant';

Expand Down
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