Fork ReactFiberLane

packages/react-dom/src/events/ReactDOMEventListener.js

@@ -41,6 +41,7 @@ import {getClosestInstanceFromNode} from '../client/ReactDOMComponentTree';
 import {
   enableLegacyFBSupport,
   decoupleUpdatePriorityFromScheduler,
+  enableNewReconciler,
 } from 'shared/ReactFeatureFlags';
 import {
   UserBlockingEvent,
@@ -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,

packages/react-dom/src/events/ReactDOMEventReplaying.js

@@ -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 {

packages/react-reconciler/src/DebugTracing.js

@@ -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';

packages/react-reconciler/src/ReactChildFiber.new.js

@@ -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';

packages/react-reconciler/src/ReactChildFiber.old.js

@@ -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';

packages/react-reconciler/src/ReactFiber.new.js

@@ -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';
 
@@ -63,7 +63,7 @@ import {
   resolveFunctionForHotReloading,
   resolveForwardRefForHotReloading,
 } from './ReactFiberHotReloading.new';
-import {NoLanes} from './ReactFiberLane';
+import {NoLanes} from './ReactFiberLane.new';
 import {
   NoMode,
   ConcurrentMode,

packages/react-reconciler/src/ReactFiber.old.js

@@ -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';
 
@@ -63,7 +63,7 @@ import {
   resolveFunctionForHotReloading,
   resolveForwardRefForHotReloading,
 } from './ReactFiberHotReloading.old';
-import {NoLanes} from './ReactFiberLane';
+import {NoLanes} from './ReactFiberLane.old';
 import {
   NoMode,
   ConcurrentMode,

packages/react-reconciler/src/ReactFiberBeginWork.new.js

@@ -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,
@@ -113,7 +113,7 @@ import {
   removeLanes,
   mergeLanes,
   getBumpedLaneForHydration,
-} from './ReactFiberLane';
+} from './ReactFiberLane.new';
 import {
   ConcurrentMode,
   NoMode,

packages/react-reconciler/src/ReactFiberBeginWork.old.js

@@ -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,
@@ -113,7 +113,7 @@ import {
   removeLanes,
   mergeLanes,
   getBumpedLaneForHydration,
-} from './ReactFiberLane';
+} from './ReactFiberLane.old';
 import {
   ConcurrentMode,
   NoMode,

packages/react-reconciler/src/ReactFiberClassComponent.new.js

@@ -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';
@@ -42,7 +42,7 @@ import {
   initializeUpdateQueue,
   cloneUpdateQueue,
 } from './ReactUpdateQueue.new';
-import {NoLanes} from './ReactFiberLane';
+import {NoLanes} from './ReactFiberLane.new';
 import {
   cacheContext,
   getMaskedContext,

packages/react-reconciler/src/ReactFiberClassComponent.old.js

@@ -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';
@@ -42,7 +42,7 @@ import {
   initializeUpdateQueue,
   cloneUpdateQueue,
 } from './ReactUpdateQueue.old';
-import {NoLanes} from './ReactFiberLane';
+import {NoLanes} from './ReactFiberLane.old';
 import {
   cacheContext,
   getMaskedContext,

packages/react-reconciler/src/ReactFiberCommitWork.new.js

@@ -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';

packages/react-reconciler/src/ReactFiberCommitWork.old.js

@@ -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';

packages/react-reconciler/src/ReactFiberCompleteWork.new.js

@@ -8,7 +8,7 @@
  */
 
 import type {Fiber} from './ReactInternalTypes';
-import type {Lanes} from './ReactFiberLane';
+import type {Lanes} from './ReactFiberLane.new';
 import type {
   ReactFundamentalComponentInstance,
   ReactScopeInstance,
@@ -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';

packages/react-reconciler/src/ReactFiberCompleteWork.old.js

@@ -8,7 +8,7 @@
  */
 
 import type {Fiber} from './ReactInternalTypes';
-import type {Lanes} from './ReactFiberLane';
+import type {Lanes} from './ReactFiberLane.old';
 import type {
   ReactFundamentalComponentInstance,
   ReactScopeInstance,
@@ -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';

packages/react-reconciler/src/ReactFiberHooks.new.js

@@ -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';
@@ -44,7 +44,7 @@ import {
   setCurrentUpdateLanePriority,
   higherLanePriority,
   DefaultLanePriority,
-} from './ReactFiberLane';
+} from './ReactFiberLane.new';
 import {readContext} from './ReactFiberNewContext.new';
 import {
   Update as UpdateEffect,

packages/react-reconciler/src/ReactFiberHooks.old.js

@@ -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';
@@ -44,7 +44,7 @@ import {
   setCurrentUpdateLanePriority,
   higherLanePriority,
   DefaultLanePriority,
-} from './ReactFiberLane';
+} from './ReactFiberLane.old';
 import {readContext} from './ReactFiberNewContext.old';
 import {
   Update as UpdateEffect,

packages/react-reconciler/src/ReactFiberHotReloading.new.js

@@ -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,

packages/react-reconciler/src/ReactFiberHotReloading.old.js

@@ -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,

packages/react-reconciler/src/ReactFiberHydrationContext.new.js

@@ -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.

packages/react-reconciler/src/ReactFiberHydrationContext.old.js

@@ -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.

packages/react-reconciler/src/ReactFiberLane.js → packages/react-reconciler/src/ReactFiberLane.new.js

@@ -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
@@ -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';