Update Flow to 0.257 (#34253)

After an easy couple version with #34252, this version is less flexible
(and safer) on inferring exported types mainly.

We require to annotate some exported types to differentiate between
`boolean` and literal `true` types, etc.

package.json

@@ -73,8 +73,8 @@
     "eslint-plugin-react-internal": "link:./scripts/eslint-rules",
     "fbjs-scripts": "^3.0.1",
     "filesize": "^6.0.1",
-    "flow-bin": "^0.256",
-    "flow-remove-types": "^2.256",
+    "flow-bin": "^0.257",
+    "flow-remove-types": "^2.257",
     "glob": "^7.1.6",
     "glob-stream": "^6.1.0",
     "google-closure-compiler": "^20230206.0.0",

packages/react-devtools-shared/src/backend/NativeStyleEditor/setupNativeStyleEditor.js

@@ -194,7 +194,7 @@ function renameStyle(
   const {instance, style} = data;
 
   const newStyle = newName
-    ? {[oldName]: undefined, [newName]: value}
+    ? {[oldName]: (undefined: string | void), [newName]: value}
     : {[oldName]: undefined};
 
   let customStyle;

packages/react-devtools-shared/src/config/DevToolsFeatureFlags.core-fb.js

@@ -13,9 +13,9 @@
  * It should always be imported from "react-devtools-feature-flags".
  ************************************************************************/
 
-export const enableLogger = true;
-export const enableStyleXFeatures = true;
-export const isInternalFacebookBuild = true;
+export const enableLogger: boolean = true;
+export const enableStyleXFeatures: boolean = true;
+export const isInternalFacebookBuild: boolean = true;
 
 /************************************************************************
  * Do not edit the code below.

packages/react-devtools-shared/src/config/DevToolsFeatureFlags.core-oss.js

@@ -13,9 +13,9 @@
  * It should always be imported from "react-devtools-feature-flags".
  ************************************************************************/
 
-export const enableLogger = false;
-export const enableStyleXFeatures = false;
-export const isInternalFacebookBuild = false;
+export const enableLogger: boolean = false;
+export const enableStyleXFeatures: boolean = false;
+export const isInternalFacebookBuild: boolean = false;
 
 /************************************************************************
  * Do not edit the code below.

packages/react-devtools-shared/src/config/DevToolsFeatureFlags.default.js

@@ -13,6 +13,6 @@
  * It should always be imported from "react-devtools-feature-flags".
  ************************************************************************/
 
-export const enableLogger = false;
-export const enableStyleXFeatures = false;
-export const isInternalFacebookBuild = false;
+export const enableLogger: boolean = false;
+export const enableStyleXFeatures: boolean = false;
+export const isInternalFacebookBuild: boolean = false;

packages/react-devtools-shared/src/config/DevToolsFeatureFlags.extension-fb.js

@@ -13,9 +13,9 @@
  * It should always be imported from "react-devtools-feature-flags".
  ************************************************************************/
 
-export const enableLogger = true;
-export const enableStyleXFeatures = true;
-export const isInternalFacebookBuild = true;
+export const enableLogger: boolean = true;
+export const enableStyleXFeatures: boolean = true;
+export const isInternalFacebookBuild: boolean = true;
 
 /************************************************************************
  * Do not edit the code below.

packages/react-devtools-shared/src/config/DevToolsFeatureFlags.extension-oss.js

@@ -13,9 +13,9 @@
  * It should always be imported from "react-devtools-feature-flags".
  ************************************************************************/
 
-export const enableLogger = false;
-export const enableStyleXFeatures = false;
-export const isInternalFacebookBuild = false;
+export const enableLogger: boolean = false;
+export const enableStyleXFeatures: boolean = false;
+export const isInternalFacebookBuild: boolean = false;
 
 /************************************************************************
  * Do not edit the code below.

packages/react-devtools-timeline/src/content-views/constants.js

@@ -16,7 +16,7 @@ export const MARKER_TEXT_PADDING = 8;
 export const COLOR_HOVER_DIM_DELTA = 5;
 export const TOP_ROW_PADDING = 4;
 export const NATIVE_EVENT_HEIGHT = 14;
-export const SUSPENSE_EVENT_HEIGHT = 14;
+export const SUSPENSE_EVENT_HEIGHT: number = 14;
 export const PENDING_SUSPENSE_EVENT_SIZE = 8;
 export const REACT_EVENT_DIAMETER = 6;
 export const USER_TIMING_MARK_SIZE = 8;

packages/react-dom-bindings/src/client/ReactFiberConfigDOM.js

@@ -746,7 +746,7 @@ export const scheduleTimeout: any =
   typeof setTimeout === 'function' ? setTimeout : (undefined: any);
 export const cancelTimeout: any =
   typeof clearTimeout === 'function' ? clearTimeout : (undefined: any);
-export const noTimeout = -1;
+export const noTimeout: -1 = -1;
 const localPromise = typeof Promise === 'function' ? Promise : undefined;
 const localRequestAnimationFrame =
   typeof requestAnimationFrame === 'function'

packages/react-dom-bindings/src/events/DOMPluginEventSystem.js

@@ -407,7 +407,7 @@ export function listenToNativeEventForNonManagedEventTarget(
   isCapturePhaseListener: boolean,
   target: EventTarget,
 ): void {
-  let eventSystemFlags = IS_EVENT_HANDLE_NON_MANAGED_NODE;
+  let eventSystemFlags: number = IS_EVENT_HANDLE_NON_MANAGED_NODE;
   const listenerSet = getEventListenerSet(target);
   const listenerSetKey = getListenerSetKey(
     domEventName,

packages/react-native-renderer/src/ReactFiberConfigFabric.js

@@ -431,7 +431,7 @@ export const warnsIfNotActing = false;
 
 export const scheduleTimeout = setTimeout;
 export const cancelTimeout = clearTimeout;
-export const noTimeout = -1;
+export const noTimeout: -1 = -1;
 
 // -------------------
 //     Persistence

packages/react-native-renderer/src/ReactFiberConfigNative.js

@@ -326,7 +326,7 @@ export const warnsIfNotActing = true;
 
 export const scheduleTimeout = setTimeout;
 export const cancelTimeout = clearTimeout;
-export const noTimeout = -1;
+export const noTimeout: -1 = -1;
 
 export function shouldSetTextContent(type: string, props: Props): boolean {
   // TODO (bvaughn) Revisit this decision.

packages/react-reconciler/src/ReactFiber.js

@@ -522,7 +522,7 @@ export function createHostRootFiber(
   tag: RootTag,
   isStrictMode: boolean,
 ): Fiber {
-  let mode;
+  let mode: number;
   if (disableLegacyMode || tag === ConcurrentRoot) {
     mode = ConcurrentMode;
     if (isStrictMode === true) {
@@ -551,7 +551,7 @@ export function createFiberFromTypeAndProps(
   mode: TypeOfMode,
   lanes: Lanes,
 ): Fiber {
-  let fiberTag = FunctionComponent;
+  let fiberTag: WorkTag = FunctionComponent;
   // The resolved type is set if we know what the final type will be. I.e. it's not lazy.
   let resolvedType = type;
   if (typeof type === 'function') {

packages/react-reconciler/src/ReactFiberCommitWork.js

@@ -283,6 +283,7 @@ import {
   untrackNamedViewTransition,
 } from './ReactFiberDuplicateViewTransitions';
 import {markIndicatorHandled} from './ReactFiberRootScheduler';
+import type {Flags} from './ReactFiberFlags';
 
 // Used during the commit phase to track the state of the Offscreen component stack.
 // Allows us to avoid traversing the return path to find the nearest Offscreen ancestor.
@@ -4490,7 +4491,7 @@ export function commitPassiveUnmountEffects(finishedWork: Fiber): void {
 // Note that MaySuspendCommit and ShouldSuspendCommit also includes named
 // ViewTransitions so that we know to also visit those to collect appearing
 // pairs.
-let suspenseyCommitFlag = ShouldSuspendCommit;
+let suspenseyCommitFlag: Flags = ShouldSuspendCommit;
 export function accumulateSuspenseyCommit(
   finishedWork: Fiber,
   committedLanes: Lanes,

packages/react-reconciler/src/ReactFiberCompleteWork.js

@@ -190,6 +190,7 @@ import {
   popRootMarkerInstance,
 } from './ReactFiberTracingMarkerComponent';
 import {suspendCommit} from './ReactFiberThenable';
+import type {Flags} from './ReactFiberFlags';
 
 /**
  * Tag the fiber with an update effect. This turns a Placement into
@@ -780,7 +781,7 @@ function bubbleProperties(completedWork: Fiber) {
     completedWork.alternate.child === completedWork.child;
 
   let newChildLanes: Lanes = NoLanes;
-  let subtreeFlags = NoFlags;
+  let subtreeFlags: Flags = NoFlags;
 
   if (!didBailout) {
     // Bubble up the earliest expiration time.

packages/react-test-renderer/src/ReactFiberConfigTestHost.js

@@ -268,7 +268,7 @@ export const warnsIfNotActing = true;
 export const scheduleTimeout = setTimeout;
 export const cancelTimeout = clearTimeout;
 
-export const noTimeout = -1;
+export const noTimeout: -1 = -1;
 
 // -------------------
 //     Mutation

packages/react-test-renderer/src/ReactTestRenderer.js

@@ -61,6 +61,7 @@ import {
 } from 'shared/ReactFeatureFlags';
 
 import noop from 'shared/noop';
+import type {WorkTag} from 'react-reconciler/src/ReactWorkTags';
 
 const defaultOnDefaultTransitionIndicator: () => void | (() => void) = noop;
 
@@ -244,7 +245,7 @@ function toTree(node: null | Fiber): $FlowFixMe {
   }
 }
 
-const validWrapperTypes = new Set([
+const validWrapperTypes: Set<WorkTag> = new Set([
   FunctionComponent,
   ClassComponent,
   HostComponent,

packages/react/index.development.js

@@ -19,7 +19,6 @@ export type Portal = React$Portal;
 export type ElementProps<C> = React$ElementProps<C>;
 export type ElementConfig<C> = React$ElementConfig<C>;
 export type ElementRef<C> = React$ElementRef<C>;
-export type Config<Props, DefaultProps> = React$Config<Props, DefaultProps>;
 export type ChildrenArray<+T> = $ReadOnlyArray<ChildrenArray<T>> | T;
 
 // Export all exports so that they're available in tests.

packages/react/index.js

@@ -21,7 +21,6 @@ export type RefSetter<-I> = React$RefSetter<I>;
 export type ElementProps<C> = React$ElementProps<C>;
 export type ElementConfig<C> = React$ElementConfig<C>;
 export type ElementRef<C> = React$ElementRef<C>;
-export type Config<Props, DefaultProps> = React$Config<Props, DefaultProps>;
 export type ChildrenArray<+T> = $ReadOnlyArray<ChildrenArray<T>> | T;
 
 export {

packages/scheduler/src/forks/Scheduler.js

@@ -83,7 +83,7 @@ var timerQueue: Array<Task> = [];
 var taskIdCounter = 1;
 
 var currentTask = null;
-var currentPriorityLevel = NormalPriority;
+var currentPriorityLevel: PriorityLevel = NormalPriority;
 
 // This is set while performing work, to prevent re-entrance.
 var isPerformingWork = false;
@@ -441,7 +441,7 @@ let taskTimeoutID: TimeoutID = (-1: any);
 // thread, like user events. By default, it yields multiple times per frame.
 // It does not attempt to align with frame boundaries, since most tasks don't
 // need to be frame aligned; for those that do, use requestAnimationFrame.
-let frameInterval = frameYieldMs;
+let frameInterval: number = frameYieldMs;
 let startTime = -1;
 
 function shouldYieldToHost(): boolean {

packages/scheduler/src/forks/SchedulerMock.js

@@ -70,7 +70,7 @@ var timerQueue: Array<Task> = [];
 var taskIdCounter = 1;
 
 var currentTask = null;
-var currentPriorityLevel = NormalPriority;
+var currentPriorityLevel: PriorityLevel = NormalPriority;
 
 // This is set while performing work, to prevent re-entrance.
 var isPerformingWork = false;

packages/scheduler/src/forks/SchedulerNative.js

@@ -10,17 +10,18 @@
 import * as Scheduler from './Scheduler';
 import type {Callback, Task} from './Scheduler';
 import type {PriorityLevel} from '../SchedulerPriorities';
+import typeof * as PriorityLevels from '../SchedulerPriorities';
 import typeof * as SchedulerExportsType from './Scheduler';
 import typeof * as SchedulerNativeExportsType from './SchedulerNative';
 
 // This type is supposed to reflect the actual methods and arguments currently supported by the C++ implementation:
 // https://github.com/facebook/react-native/blob/main/packages/react-native/ReactCommon/react/renderer/runtimescheduler/RuntimeSchedulerBinding.cpp
 type NativeSchedulerType = {
-  unstable_ImmediatePriority: PriorityLevel,
-  unstable_UserBlockingPriority: PriorityLevel,
-  unstable_NormalPriority: PriorityLevel,
-  unstable_IdlePriority: PriorityLevel,
-  unstable_LowPriority: PriorityLevel,
+  unstable_ImmediatePriority: PriorityLevels['ImmediatePriority'],
+  unstable_UserBlockingPriority: PriorityLevels['UserBlockingPriority'],
+  unstable_NormalPriority: PriorityLevels['NormalPriority'],
+  unstable_IdlePriority: PriorityLevels['IdlePriority'],
+  unstable_LowPriority: PriorityLevels['LowPriority'],
   unstable_scheduleCallback: (
     priorityLevel: PriorityLevel,
     callback: Callback,
@@ -34,27 +35,27 @@ type NativeSchedulerType = {
 
 declare const nativeRuntimeScheduler: void | NativeSchedulerType;
 
-export const unstable_UserBlockingPriority: PriorityLevel =
+export const unstable_UserBlockingPriority: PriorityLevels['UserBlockingPriority'] =
   typeof nativeRuntimeScheduler !== 'undefined'
     ? nativeRuntimeScheduler.unstable_UserBlockingPriority
     : Scheduler.unstable_UserBlockingPriority;
 
-export const unstable_NormalPriority: PriorityLevel =
+export const unstable_NormalPriority: PriorityLevels['NormalPriority'] =
   typeof nativeRuntimeScheduler !== 'undefined'
     ? nativeRuntimeScheduler.unstable_NormalPriority
     : Scheduler.unstable_NormalPriority;
 
-export const unstable_IdlePriority: PriorityLevel =
+export const unstable_IdlePriority: PriorityLevels['IdlePriority'] =
   typeof nativeRuntimeScheduler !== 'undefined'
     ? nativeRuntimeScheduler.unstable_IdlePriority
     : Scheduler.unstable_IdlePriority;
 
-export const unstable_LowPriority: PriorityLevel =
+export const unstable_LowPriority: PriorityLevels['LowPriority'] =
   typeof nativeRuntimeScheduler !== 'undefined'
     ? nativeRuntimeScheduler.unstable_LowPriority
     : Scheduler.unstable_LowPriority;
 
-export const unstable_ImmediatePriority: PriorityLevel =
+export const unstable_ImmediatePriority: PriorityLevels['ImmediatePriority'] =
   typeof nativeRuntimeScheduler !== 'undefined'
     ? nativeRuntimeScheduler.unstable_ImmediatePriority
     : Scheduler.unstable_ImmediatePriority;

packages/scheduler/src/forks/SchedulerPostTask.js

@@ -55,7 +55,7 @@ export const unstable_now = getCurrentTime;
 const yieldInterval = 5;
 let deadline = 0;
 
-let currentPriorityLevel_DEPRECATED = NormalPriority;
+let currentPriorityLevel_DEPRECATED: PriorityLevel = NormalPriority;
 
 // Always yield at the end of the frame.
 export function unstable_shouldYield(): boolean {

packages/shared/ReactFeatureFlags.js

@@ -22,7 +22,7 @@
 // when it rolls out to prod. We should remove these as soon as possible.
 // -----------------------------------------------------------------------------
 
-export const enableHydrationLaneScheduling = true;
+export const enableHydrationLaneScheduling: boolean = true;
 
 // -----------------------------------------------------------------------------
 // Land or remove (moderate effort)
@@ -32,7 +32,7 @@ export const enableHydrationLaneScheduling = true;
 // -----------------------------------------------------------------------------
 
 // Need to remove didTimeout argument from Scheduler before landing
-export const disableSchedulerTimeoutInWorkLoop = false;
+export const disableSchedulerTimeoutInWorkLoop: boolean = false;
 
 // -----------------------------------------------------------------------------
 // Slated for removal in the future (significant effort)
@@ -49,16 +49,16 @@ export const disableSchedulerTimeoutInWorkLoop = false;
 // hydrated or deleted.
 //
 // This will eventually be replaced by the Transition Tracing proposal.
-export const enableSuspenseCallback = false;
+export const enableSuspenseCallback: boolean = false;
 
 // Experimental Scope support.
-export const enableScopeAPI = false;
+export const enableScopeAPI: boolean = false;
 
 // Experimental Create Event Handle API.
-export const enableCreateEventHandleAPI = false;
+export const enableCreateEventHandleAPI: boolean = false;
 
 // Support legacy Primer support on internal FB www
-export const enableLegacyFBSupport = false;
+export const enableLegacyFBSupport: boolean = false;
 
 // -----------------------------------------------------------------------------
 // Ongoing experiments
@@ -69,10 +69,10 @@ export const enableLegacyFBSupport = false;
 
 // Yield to the browser event loop and not just the scheduler event loop before passive effects.
 // Fix gated tests that fail with this flag enabled before turning it back on.
-export const enableYieldingBeforePassive = false;
+export const enableYieldingBeforePassive: boolean = false;
 
 // Experiment to intentionally yield less to block high framerate animations.
-export const enableThrottledScheduling = false;
+export const enableThrottledScheduling: boolean = false;
 
 export const enableLegacyCache = __EXPERIMENTAL__;
 
@@ -90,7 +90,7 @@ export const enableGestureTransition = __EXPERIMENTAL__;
 
 export const enableScrollEndPolyfill = __EXPERIMENTAL__;
 
-export const enableSuspenseyImages = false;
+export const enableSuspenseyImages: boolean = false;
 
 export const enableFizzBlockingRender = __EXPERIMENTAL__; // rel="expect"
 
@@ -103,20 +103,20 @@ export const enableDefaultTransitionIndicator = __EXPERIMENTAL__;
 /**
  * Switches Fiber creation to a simple object instead of a constructor.
  */
-export const enableObjectFiber = false;
+export const enableObjectFiber: boolean = false;
 
-export const enableTransitionTracing = false;
+export const enableTransitionTracing: boolean = false;
 
 // FB-only usage. The new API has different semantics.
-export const enableLegacyHidden = false;
+export const enableLegacyHidden: boolean = false;
 
 // Enables unstable_avoidThisFallback feature in Fiber
-export const enableSuspenseAvoidThisFallback = false;
+export const enableSuspenseAvoidThisFallback: boolean = false;
 
 export const enableCPUSuspense = __EXPERIMENTAL__;
 
 // Test this at Meta before enabling.
-export const enableNoCloningMemoCache = false;
+export const enableNoCloningMemoCache: boolean = false;
 
 export const enableUseEffectEventHook = __EXPERIMENTAL__;
 
@@ -125,22 +125,22 @@ export const enableUseEffectEventHook = __EXPERIMENTAL__;
 // (handled with an MutationObserver) instead of inline-scripts
 export const enableFizzExternalRuntime = __EXPERIMENTAL__;
 
-export const alwaysThrottleRetries = true;
+export const alwaysThrottleRetries: boolean = true;
 
-export const passChildrenWhenCloningPersistedNodes = false;
+export const passChildrenWhenCloningPersistedNodes: boolean = false;
 
 /**
  * Enables a new Fiber flag used in persisted mode to reduce the number
  * of cloned host components.
  */
-export const enablePersistedModeClonedFlag = false;
+export const enablePersistedModeClonedFlag: boolean = false;
 
-export const enableEagerAlternateStateNodeCleanup = true;
+export const enableEagerAlternateStateNodeCleanup: boolean = true;
 
 /**
  * Enables an expiration time for retry lanes to avoid starvation.
  */
-export const enableRetryLaneExpiration = false;
+export const enableRetryLaneExpiration: boolean = false;
 export const retryLaneExpirationMs = 5000;
 export const syncLaneExpirationMs = 250;
 export const transitionLaneExpirationMs = 5000;
@@ -149,7 +149,7 @@ export const transitionLaneExpirationMs = 5000;
  * Enables a new error detection for infinite render loops from updates caused
  * by setState or similar outside of the component owning the state.
  */
-export const enableInfiniteRenderLoopDetection = false;
+export const enableInfiniteRenderLoopDetection: boolean = false;
 
 export const enableFragmentRefs = __EXPERIMENTAL__;
 
@@ -166,35 +166,35 @@ export const enableFragmentRefs = __EXPERIMENTAL__;
 // const __NEXT_MAJOR__ = __EXPERIMENTAL__;
 
 // Renames the internal symbol for elements since they have changed signature/constructor
-export const renameElementSymbol = true;
+export const renameElementSymbol: boolean = true;
 
 /**
  * Enables a fix to run insertion effect cleanup on hidden subtrees.
  */
-export const enableHiddenSubtreeInsertionEffectCleanup = false;
+export const enableHiddenSubtreeInsertionEffectCleanup: boolean = false;
 
 /**
  * Removes legacy style context defined using static `contextTypes` and consumed with static `childContextTypes`.
  */
-export const disableLegacyContext = true;
+export const disableLegacyContext: boolean = true;
 /**
  * Removes legacy style context just from function components.
  */
-export const disableLegacyContextForFunctionComponents = true;
+export const disableLegacyContextForFunctionComponents: boolean = true;
 
 // Enable the moveBefore() alternative to insertBefore(). This preserves states of moves.
-export const enableMoveBefore = false;
+export const enableMoveBefore: boolean = false;
 
 // Disabled caching behavior of `react/cache` in client runtimes.
-export const disableClientCache = true;
+export const disableClientCache: boolean = true;
 
 // Warn on any usage of ReactTestRenderer
-export const enableReactTestRendererWarning = true;
+export const enableReactTestRendererWarning: boolean = true;
 
 // Disables legacy mode
 // This allows us to land breaking changes to remove legacy mode APIs in experimental builds
 // before removing them in stable in the next Major
-export const disableLegacyMode = true;
+export const disableLegacyMode: boolean = true;
 
 // -----------------------------------------------------------------------------
 // Chopping Block
@@ -212,16 +212,16 @@ export const disableLegacyMode = true;
 
 // Disable support for comment nodes as React DOM containers. Already disabled
 // in open source, but www codebase still relies on it. Need to remove.
-export const disableCommentsAsDOMContainers = true;
+export const disableCommentsAsDOMContainers: boolean = true;
 
-export const enableTrustedTypesIntegration = false;
+export const enableTrustedTypesIntegration: boolean = false;
 
 // Prevent the value and checked attributes from syncing with their related
 // DOM properties
-export const disableInputAttributeSyncing = false;
+export const disableInputAttributeSyncing: boolean = false;
 
 // Disables children for <textarea> elements
-export const disableTextareaChildren = false;
+export const disableTextareaChildren: boolean = false;
 
 // -----------------------------------------------------------------------------
 // Debugging and DevTools
@@ -247,7 +247,7 @@ export const enableProfilerCommitHooks = __PROFILE__;
 // Phase param passed to onRender callback differentiates between an "update" and a "cascading-update".
 export const enableProfilerNestedUpdatePhase = __PROFILE__;
 
-export const enableAsyncDebugInfo = true;
+export const enableAsyncDebugInfo: boolean = true;
 
 // Track which Fiber(s) schedule render work.
 export const enableUpdaterTracking = __PROFILE__;

packages/shared/forks/ReactFeatureFlags.native-fb.js

@@ -30,55 +30,55 @@ export const {
 } = dynamicFlags;
 
 // The rest of the flags are static for better dead code elimination.
-export const disableClientCache = true;
-export const disableCommentsAsDOMContainers = true;
-export const disableInputAttributeSyncing = false;
-export const disableLegacyContext = false;
-export const disableLegacyContextForFunctionComponents = false;
-export const disableLegacyMode = false;
-export const disableSchedulerTimeoutInWorkLoop = false;
-export const disableTextareaChildren = false;
-export const enableAsyncDebugInfo = false;
-export const enableAsyncIterableChildren = false;
-export const enableCPUSuspense = true;
-export const enableCreateEventHandleAPI = false;
-export const enableMoveBefore = true;
-export const enableFizzExternalRuntime = true;
-export const enableHalt = false;
-export const enableInfiniteRenderLoopDetection = false;
-export const enableLegacyCache = false;
-export const enableLegacyFBSupport = false;
-export const enableLegacyHidden = false;
-export const enableNoCloningMemoCache = false;
-export const enablePostpone = false;
-export const enableProfilerCommitHooks = __PROFILE__;
-export const enableProfilerNestedUpdatePhase = __PROFILE__;
-export const enableProfilerTimer = __PROFILE__;
-export const enableReactTestRendererWarning = false;
-export const enableRetryLaneExpiration = false;
-export const enableSchedulingProfiler = __PROFILE__;
-export const enableScopeAPI = false;
-export const enableSuspenseAvoidThisFallback = false;
-export const enableSuspenseCallback = true;
-export const enableTaint = true;
-export const enableTransitionTracing = false;
-export const enableTrustedTypesIntegration = false;
-export const enableUpdaterTracking = __PROFILE__;
-export const enableUseEffectEventHook = false;
+export const disableClientCache: boolean = true;
+export const disableCommentsAsDOMContainers: boolean = true;
+export const disableInputAttributeSyncing: boolean = false;
+export const disableLegacyContext: boolean = false;
+export const disableLegacyContextForFunctionComponents: boolean = false;
+export const disableLegacyMode: boolean = false;
+export const disableSchedulerTimeoutInWorkLoop: boolean = false;
+export const disableTextareaChildren: boolean = false;
+export const enableAsyncDebugInfo: boolean = false;
+export const enableAsyncIterableChildren: boolean = false;
+export const enableCPUSuspense: boolean = true;
+export const enableCreateEventHandleAPI: boolean = false;
+export const enableMoveBefore: boolean = true;
+export const enableFizzExternalRuntime: boolean = true;
+export const enableHalt: boolean = false;
+export const enableInfiniteRenderLoopDetection: boolean = false;
+export const enableLegacyCache: boolean = false;
+export const enableLegacyFBSupport: boolean = false;
+export const enableLegacyHidden: boolean = false;
+export const enableNoCloningMemoCache: boolean = false;
+export const enablePostpone: boolean = false;
+export const enableProfilerCommitHooks: boolean = __PROFILE__;
+export const enableProfilerNestedUpdatePhase: boolean = __PROFILE__;
+export const enableProfilerTimer: boolean = __PROFILE__;
+export const enableReactTestRendererWarning: boolean = false;
+export const enableRetryLaneExpiration: boolean = false;
+export const enableSchedulingProfiler: boolean = __PROFILE__;
+export const enableScopeAPI: boolean = false;
+export const enableSuspenseAvoidThisFallback: boolean = false;
+export const enableSuspenseCallback: boolean = true;
+export const enableTaint: boolean = true;
+export const enableTransitionTracing: boolean = false;
+export const enableTrustedTypesIntegration: boolean = false;
+export const enableUpdaterTracking: boolean = __PROFILE__;
+export const enableUseEffectEventHook: boolean = false;
 export const retryLaneExpirationMs = 5000;
 export const syncLaneExpirationMs = 250;
 export const transitionLaneExpirationMs = 5000;
-export const enableHydrationLaneScheduling = true;
-export const enableYieldingBeforePassive = false;
-export const enableThrottledScheduling = false;
-export const enableViewTransition = false;
-export const enableGestureTransition = false;
-export const enableScrollEndPolyfill = true;
-export const enableSuspenseyImages = false;
-export const enableFizzBlockingRender = true;
-export const enableSrcObject = false;
-export const enableHydrationChangeEvent = true;
-export const enableDefaultTransitionIndicator = false;
+export const enableHydrationLaneScheduling: boolean = true;
+export const enableYieldingBeforePassive: boolean = false;
+export const enableThrottledScheduling: boolean = false;
+export const enableViewTransition: boolean = false;
+export const enableGestureTransition: boolean = false;
+export const enableScrollEndPolyfill: boolean = true;
+export const enableSuspenseyImages: boolean = false;
+export const enableFizzBlockingRender: boolean = true;
+export const enableSrcObject: boolean = false;
+export const enableHydrationChangeEvent: boolean = true;
+export const enableDefaultTransitionIndicator: boolean = false;
 export const ownerStackLimit = 1e4;
 export const enableComponentPerformanceTrack: boolean =
   __PROFILE__ && dynamicFlags.enableComponentPerformanceTrack;

packages/shared/forks/ReactFeatureFlags.native-oss.js

@@ -15,70 +15,70 @@ import typeof * as ExportsType from './ReactFeatureFlags.native-oss';
 // -----------------------------------------------------------------------------
 // All flags
 // -----------------------------------------------------------------------------
-export const alwaysThrottleRetries = false;
-export const disableClientCache = true;
-export const disableCommentsAsDOMContainers = true;
-export const disableInputAttributeSyncing = false;
-export const disableLegacyContext = true;
-export const disableLegacyContextForFunctionComponents = true;
-export const disableLegacyMode = false;
-export const disableSchedulerTimeoutInWorkLoop = false;
-export const disableTextareaChildren = false;
-export const enableAsyncDebugInfo = false;
-export const enableAsyncIterableChildren = false;
-export const enableCPUSuspense = false;
-export const enableCreateEventHandleAPI = false;
-export const enableMoveBefore = true;
-export const enableFizzExternalRuntime = true;
-export const enableHalt = false;
-export const enableHiddenSubtreeInsertionEffectCleanup = false;
-export const enableInfiniteRenderLoopDetection = false;
-export const enableLegacyCache = false;
-export const enableLegacyFBSupport = false;
-export const enableLegacyHidden = false;
-export const enableNoCloningMemoCache = false;
-export const enableObjectFiber = false;
-export const enablePersistedModeClonedFlag = false;
-export const enablePostpone = false;
-export const enableReactTestRendererWarning = false;
-export const enableRetryLaneExpiration = false;
-export const enableSchedulingProfiler = __PROFILE__;
-export const enableComponentPerformanceTrack = false;
-export const enableScopeAPI = false;
-export const enableEagerAlternateStateNodeCleanup = true;
-export const enableSuspenseAvoidThisFallback = false;
-export const enableSuspenseCallback = false;
-export const enableTaint = true;
-export const enableTransitionTracing = false;
-export const enableTrustedTypesIntegration = false;
-export const enableUseEffectEventHook = false;
-export const passChildrenWhenCloningPersistedNodes = false;
-export const renameElementSymbol = true;
+export const alwaysThrottleRetries: boolean = false;
+export const disableClientCache: boolean = true;
+export const disableCommentsAsDOMContainers: boolean = true;
+export const disableInputAttributeSyncing: boolean = false;
+export const disableLegacyContext: boolean = true;
+export const disableLegacyContextForFunctionComponents: boolean = true;
+export const disableLegacyMode: boolean = false;
+export const disableSchedulerTimeoutInWorkLoop: boolean = false;
+export const disableTextareaChildren: boolean = false;
+export const enableAsyncDebugInfo: boolean = false;
+export const enableAsyncIterableChildren: boolean = false;
+export const enableCPUSuspense: boolean = false;
+export const enableCreateEventHandleAPI: boolean = false;
+export const enableMoveBefore: boolean = true;
+export const enableFizzExternalRuntime: boolean = true;
+export const enableHalt: boolean = false;
+export const enableHiddenSubtreeInsertionEffectCleanup: boolean = false;
+export const enableInfiniteRenderLoopDetection: boolean = false;
+export const enableLegacyCache: boolean = false;
+export const enableLegacyFBSupport: boolean = false;
+export const enableLegacyHidden: boolean = false;
+export const enableNoCloningMemoCache: boolean = false;
+export const enableObjectFiber: boolean = false;
+export const enablePersistedModeClonedFlag: boolean = false;
+export const enablePostpone: boolean = false;
+export const enableReactTestRendererWarning: boolean = false;
+export const enableRetryLaneExpiration: boolean = false;
+export const enableSchedulingProfiler: boolean = __PROFILE__;
+export const enableComponentPerformanceTrack: boolean = false;
+export const enableScopeAPI: boolean = false;
+export const enableEagerAlternateStateNodeCleanup: boolean = true;
+export const enableSuspenseAvoidThisFallback: boolean = false;
+export const enableSuspenseCallback: boolean = false;
+export const enableTaint: boolean = true;
+export const enableTransitionTracing: boolean = false;
+export const enableTrustedTypesIntegration: boolean = false;
+export const enableUseEffectEventHook: boolean = false;
+export const passChildrenWhenCloningPersistedNodes: boolean = false;
+export const renameElementSymbol: boolean = true;
 export const retryLaneExpirationMs = 5000;
 export const syncLaneExpirationMs = 250;
 export const transitionLaneExpirationMs = 5000;
-export const enableHydrationLaneScheduling = true;
+export const enableHydrationLaneScheduling: boolean = true;
 
-export const enableYieldingBeforePassive = false;
+export const enableYieldingBeforePassive: boolean = false;
 
-export const enableThrottledScheduling = false;
-export const enableViewTransition = false;
-export const enableGestureTransition = false;
-export const enableScrollEndPolyfill = true;
-export const enableSuspenseyImages = false;
-export const enableFizzBlockingRender = true;
-export const enableSrcObject = false;
-export const enableHydrationChangeEvent = false;
-export const enableDefaultTransitionIndicator = false;
+export const enableThrottledScheduling: boolean = false;
+export const enableViewTransition: boolean = false;
+export const enableGestureTransition: boolean = false;
+export const enableScrollEndPolyfill: boolean = true;
+export const enableSuspenseyImages: boolean = false;
+export const enableFizzBlockingRender: boolean = true;
+export const enableSrcObject: boolean = false;
+export const enableHydrationChangeEvent: boolean = false;
+export const enableDefaultTransitionIndicator: boolean = false;
 export const ownerStackLimit = 1e4;
 
-export const enableFragmentRefs = false;
+export const enableFragmentRefs: boolean = false;
 
 // Profiling Only
-export const enableProfilerTimer = __PROFILE__;
-export const enableProfilerCommitHooks = __PROFILE__;
-export const enableProfilerNestedUpdatePhase = __PROFILE__;
-export const enableUpdaterTracking = __PROFILE__;
+export const enableProfilerTimer: boolean = __PROFILE__;
+export const enableProfilerCommitHooks: boolean = __PROFILE__;
+export const enableProfilerNestedUpdatePhase: boolean = __PROFILE__;
+export const enableUpdaterTracking: boolean = __PROFILE__;
 
 // Flow magic to verify the exports of this file match the original version.
 ((((null: any): ExportsType): FeatureFlagsType): ExportsType);

packages/shared/forks/ReactFeatureFlags.test-renderer.js

@@ -10,71 +10,71 @@
 import typeof * as FeatureFlagsType from 'shared/ReactFeatureFlags';
 import typeof * as ExportsType from './ReactFeatureFlags.test-renderer';
 
-export const enableAsyncDebugInfo = false;
-export const enableSchedulingProfiler = false;
-export const enableProfilerTimer = __PROFILE__;
-export const enableProfilerCommitHooks = __PROFILE__;
-export const enableProfilerNestedUpdatePhase = __PROFILE__;
-export const enableComponentPerformanceTrack = false;
-export const enableUpdaterTracking = false;
-export const enableLegacyCache = __EXPERIMENTAL__;
-export const enableAsyncIterableChildren = false;
-export const enableTaint = true;
-export const enablePostpone = false;
-export const enableHalt = false;
-export const disableCommentsAsDOMContainers = true;
-export const disableInputAttributeSyncing = false;
-export const enableScopeAPI = false;
-export const enableCreateEventHandleAPI = false;
-export const enableSuspenseCallback = false;
-export const enableTrustedTypesIntegration = false;
-export const disableTextareaChildren = false;
-export const enableSuspenseAvoidThisFallback = false;
-export const enableCPUSuspense = false;
-export const enableNoCloningMemoCache = false;
-export const enableUseEffectEventHook = false;
-export const enableLegacyFBSupport = false;
-export const enableMoveBefore = false;
-export const enableHiddenSubtreeInsertionEffectCleanup = false;
-export const enableHydrationLaneScheduling = true;
+export const enableAsyncDebugInfo: boolean = false;
+export const enableSchedulingProfiler: boolean = false;
+export const enableProfilerTimer: boolean = __PROFILE__;
+export const enableProfilerCommitHooks: boolean = __PROFILE__;
+export const enableProfilerNestedUpdatePhase: boolean = __PROFILE__;
+export const enableComponentPerformanceTrack: boolean = false;
+export const enableUpdaterTracking: boolean = false;
+export const enableLegacyCache: boolean = __EXPERIMENTAL__;
+export const enableAsyncIterableChildren: boolean = false;
+export const enableTaint: boolean = true;
+export const enablePostpone: boolean = false;
+export const enableHalt: boolean = false;
+export const disableCommentsAsDOMContainers: boolean = true;
+export const disableInputAttributeSyncing: boolean = false;
+export const enableScopeAPI: boolean = false;
+export const enableCreateEventHandleAPI: boolean = false;
+export const enableSuspenseCallback: boolean = false;
+export const enableTrustedTypesIntegration: boolean = false;
+export const disableTextareaChildren: boolean = false;
+export const enableSuspenseAvoidThisFallback: boolean = false;
+export const enableCPUSuspense: boolean = false;
+export const enableNoCloningMemoCache: boolean = false;
+export const enableUseEffectEventHook: boolean = false;
+export const enableLegacyFBSupport: boolean = false;
+export const enableMoveBefore: boolean = false;
+export const enableHiddenSubtreeInsertionEffectCleanup: boolean = false;
+export const enableHydrationLaneScheduling: boolean = true;
 
-export const enableRetryLaneExpiration = false;
+export const enableRetryLaneExpiration: boolean = false;
 export const retryLaneExpirationMs = 5000;
 export const syncLaneExpirationMs = 250;
 export const transitionLaneExpirationMs = 5000;
 
-export const disableSchedulerTimeoutInWorkLoop = false;
-export const enableLegacyHidden = false;
+export const disableSchedulerTimeoutInWorkLoop: boolean = false;
+export const enableLegacyHidden: boolean = false;
 
-export const enableTransitionTracing = false;
+export const enableTransitionTracing: boolean = false;
 
-export const enableFizzExternalRuntime = true;
+export const enableFizzExternalRuntime: boolean = true;
 
-export const alwaysThrottleRetries = true;
+export const alwaysThrottleRetries: boolean = true;
 
-export const passChildrenWhenCloningPersistedNodes = false;
-export const enablePersistedModeClonedFlag = false;
-export const disableClientCache = true;
+export const passChildrenWhenCloningPersistedNodes: boolean = false;
+export const enablePersistedModeClonedFlag: boolean = false;
+export const disableClientCache: boolean = true;
 
-export const enableInfiniteRenderLoopDetection = false;
+export const enableInfiniteRenderLoopDetection: boolean = false;
 
-export const renameElementSymbol = true;
-export const enableEagerAlternateStateNodeCleanup = true;
+export const renameElementSymbol: boolean = true;
+export const enableEagerAlternateStateNodeCleanup: boolean = true;
 
-export const enableYieldingBeforePassive = true;
+export const enableYieldingBeforePassive: boolean = true;
 
-export const enableThrottledScheduling = false;
-export const enableViewTransition = false;
-export const enableGestureTransition = false;
-export const enableScrollEndPolyfill = true;
-export const enableSuspenseyImages = false;
-export const enableFizzBlockingRender = true;
-export const enableSrcObject = false;
-export const enableHydrationChangeEvent = false;
-export const enableDefaultTransitionIndicator = false;
+export const enableThrottledScheduling: boolean = false;
+export const enableViewTransition: boolean = false;
+export const enableGestureTransition: boolean = false;
+export const enableScrollEndPolyfill: boolean = true;
+export const enableSuspenseyImages: boolean = false;
+export const enableFizzBlockingRender: boolean = true;
+export const enableSrcObject: boolean = false;
+export const enableHydrationChangeEvent: boolean = false;
+export const enableDefaultTransitionIndicator: boolean = false;
 export const ownerStackLimit = 1e4;
 
-export const enableFragmentRefs = false;
+export const enableFragmentRefs: boolean = false;
 
 // TODO: This must be in sync with the main ReactFeatureFlags file because
 // the Test Renderer's value must be the same as the one used by the
@@ -83,12 +83,12 @@ export const enableFragmentRefs = false;
 // We really need to get rid of this whole module. Any test renderer specific
 // flags should be handled by the Fiber config.
 // const __NEXT_MAJOR__ = __EXPERIMENTAL__;
-export const disableLegacyMode = true;
-export const disableLegacyContext = true;
-export const disableLegacyContextForFunctionComponents = true;
-export const enableReactTestRendererWarning = true;
+export const disableLegacyMode: boolean = true;
+export const disableLegacyContext: boolean = true;
+export const disableLegacyContextForFunctionComponents: boolean = true;
+export const enableReactTestRendererWarning: boolean = true;
 
-export const enableObjectFiber = false;
+export const enableObjectFiber: boolean = false;
 
 // Flow magic to verify the exports of this file match the original version.
 ((((null: any): ExportsType): FeatureFlagsType): ExportsType);

packages/shared/forks/ReactFeatureFlags.test-renderer.www.js

@@ -10,78 +10,78 @@
 import typeof * as FeatureFlagsType from 'shared/ReactFeatureFlags';
 import typeof * as ExportsType from './ReactFeatureFlags.test-renderer.www';
 
-export const enableAsyncDebugInfo = false;
-export const enableSchedulingProfiler = false;
-export const enableProfilerTimer = __PROFILE__;
-export const enableProfilerCommitHooks = __PROFILE__;
-export const enableProfilerNestedUpdatePhase = __PROFILE__;
-export const enableComponentPerformanceTrack = false;
-export const enableUpdaterTracking = false;
-export const enableLegacyCache = true;
-export const enableAsyncIterableChildren = false;
-export const enableTaint = true;
-export const enablePostpone = false;
-export const enableHalt = false;
-export const disableCommentsAsDOMContainers = true;
-export const disableInputAttributeSyncing = false;
-export const enableScopeAPI = true;
-export const enableCreateEventHandleAPI = false;
-export const enableSuspenseCallback = true;
-export const disableLegacyContext = false;
-export const disableLegacyContextForFunctionComponents = false;
-export const enableTrustedTypesIntegration = false;
-export const disableTextareaChildren = false;
-export const enableSuspenseAvoidThisFallback = true;
-export const enableCPUSuspense = false;
-export const enableNoCloningMemoCache = false;
-export const enableUseEffectEventHook = false;
-export const enableLegacyFBSupport = false;
-export const enableMoveBefore = false;
-export const enableHiddenSubtreeInsertionEffectCleanup = true;
+export const enableAsyncDebugInfo: boolean = false;
+export const enableSchedulingProfiler: boolean = false;
+export const enableProfilerTimer: boolean = __PROFILE__;
+export const enableProfilerCommitHooks: boolean = __PROFILE__;
+export const enableProfilerNestedUpdatePhase: boolean = __PROFILE__;
+export const enableComponentPerformanceTrack: boolean = false;
+export const enableUpdaterTracking: boolean = false;
+export const enableLegacyCache: boolean = true;
+export const enableAsyncIterableChildren: boolean = false;
+export const enableTaint: boolean = true;
+export const enablePostpone: boolean = false;
+export const enableHalt: boolean = false;
+export const disableCommentsAsDOMContainers: boolean = true;
+export const disableInputAttributeSyncing: boolean = false;
+export const enableScopeAPI: boolean = true;
+export const enableCreateEventHandleAPI: boolean = false;
+export const enableSuspenseCallback: boolean = true;
+export const disableLegacyContext: boolean = false;
+export const disableLegacyContextForFunctionComponents: boolean = false;
+export const enableTrustedTypesIntegration: boolean = false;
+export const disableTextareaChildren: boolean = false;
+export const enableSuspenseAvoidThisFallback: boolean = true;
+export const enableCPUSuspense: boolean = false;
+export const enableNoCloningMemoCache: boolean = false;
+export const enableUseEffectEventHook: boolean = false;
+export const enableLegacyFBSupport: boolean = false;
+export const enableMoveBefore: boolean = false;
+export const enableHiddenSubtreeInsertionEffectCleanup: boolean = true;
 
-export const enableRetryLaneExpiration = false;
+export const enableRetryLaneExpiration: boolean = false;
 export const retryLaneExpirationMs = 5000;
 export const syncLaneExpirationMs = 250;
 export const transitionLaneExpirationMs = 5000;
 
-export const disableSchedulerTimeoutInWorkLoop = false;
-export const enableLegacyHidden = false;
+export const disableSchedulerTimeoutInWorkLoop: boolean = false;
+export const enableLegacyHidden: boolean = false;
 
-export const enableTransitionTracing = false;
+export const enableTransitionTracing: boolean = false;
 
-export const enableFizzExternalRuntime = false;
+export const enableFizzExternalRuntime: boolean = false;
 
-export const alwaysThrottleRetries = true;
+export const alwaysThrottleRetries: boolean = true;
 
-export const passChildrenWhenCloningPersistedNodes = false;
-export const enablePersistedModeClonedFlag = false;
-export const disableClientCache = true;
+export const passChildrenWhenCloningPersistedNodes: boolean = false;
+export const enablePersistedModeClonedFlag: boolean = false;
+export const disableClientCache: boolean = true;
 
-export const enableInfiniteRenderLoopDetection = false;
+export const enableInfiniteRenderLoopDetection: boolean = false;
 
-export const enableReactTestRendererWarning = false;
-export const disableLegacyMode = true;
+export const enableReactTestRendererWarning: boolean = false;
+export const disableLegacyMode: boolean = true;
 
-export const renameElementSymbol = false;
+export const renameElementSymbol: boolean = false;
 
-export const enableObjectFiber = false;
-export const enableEagerAlternateStateNodeCleanup = true;
+export const enableObjectFiber: boolean = false;
+export const enableEagerAlternateStateNodeCleanup: boolean = true;
 
-export const enableHydrationLaneScheduling = true;
+export const enableHydrationLaneScheduling: boolean = true;
 
-export const enableYieldingBeforePassive = false;
+export const enableYieldingBeforePassive: boolean = false;
 
-export const enableThrottledScheduling = false;
-export const enableViewTransition = false;
-export const enableGestureTransition = false;
-export const enableScrollEndPolyfill = true;
-export const enableSuspenseyImages = false;
-export const enableFizzBlockingRender = true;
-export const enableSrcObject = false;
-export const enableHydrationChangeEvent = false;
-export const enableDefaultTransitionIndicator = false;
+export const enableThrottledScheduling: boolean = false;
+export const enableViewTransition: boolean = false;
+export const enableGestureTransition: boolean = false;
+export const enableScrollEndPolyfill: boolean = true;
+export const enableSuspenseyImages: boolean = false;
+export const enableFizzBlockingRender: boolean = true;
+export const enableSrcObject: boolean = false;
+export const enableHydrationChangeEvent: boolean = false;
+export const enableDefaultTransitionIndicator: boolean = false;
 
-export const enableFragmentRefs = false;
+export const enableFragmentRefs: boolean = false;
 export const ownerStackLimit = 1e4;
 
 // Flow magic to verify the exports of this file match the original version.

packages/shared/forks/ReactFeatureFlags.www-dynamic.js

@@ -13,32 +13,32 @@
 // Use __VARIANT__ to simulate a GK. The tests will be run twice: once
 // with the __VARIANT__ set to `true`, and once set to `false`.
 
-export const alwaysThrottleRetries = __VARIANT__;
-export const disableLegacyContextForFunctionComponents = __VARIANT__;
-export const disableSchedulerTimeoutInWorkLoop = __VARIANT__;
-export const enableHiddenSubtreeInsertionEffectCleanup = __VARIANT__;
-export const enableNoCloningMemoCache = __VARIANT__;
-export const enableObjectFiber = __VARIANT__;
-export const enableRetryLaneExpiration = __VARIANT__;
-export const enableTransitionTracing = __VARIANT__;
-export const renameElementSymbol = __VARIANT__;
+export const alwaysThrottleRetries: boolean = __VARIANT__;
+export const disableLegacyContextForFunctionComponents: boolean = __VARIANT__;
+export const disableSchedulerTimeoutInWorkLoop: boolean = __VARIANT__;
+export const enableHiddenSubtreeInsertionEffectCleanup: boolean = __VARIANT__;
+export const enableNoCloningMemoCache: boolean = __VARIANT__;
+export const enableObjectFiber: boolean = __VARIANT__;
+export const enableRetryLaneExpiration: boolean = __VARIANT__;
+export const enableTransitionTracing: boolean = __VARIANT__;
+export const renameElementSymbol: boolean = __VARIANT__;
 export const retryLaneExpirationMs = 5000;
 export const syncLaneExpirationMs = 250;
 export const transitionLaneExpirationMs = 5000;
 
-export const enableSchedulingProfiler = __VARIANT__;
+export const enableSchedulingProfiler: boolean = __VARIANT__;
 
-export const enableInfiniteRenderLoopDetection = __VARIANT__;
+export const enableInfiniteRenderLoopDetection: boolean = __VARIANT__;
 
-export const enableFastAddPropertiesInDiffing = __VARIANT__;
-export const enableViewTransition = __VARIANT__;
-export const enableComponentPerformanceTrack = __VARIANT__;
-export const enableScrollEndPolyfill = __VARIANT__;
-export const enableFragmentRefs = __VARIANT__;
+export const enableFastAddPropertiesInDiffing: boolean = __VARIANT__;
+export const enableViewTransition: boolean = __VARIANT__;
+export const enableComponentPerformanceTrack: boolean = __VARIANT__;
+export const enableScrollEndPolyfill: boolean = __VARIANT__;
+export const enableFragmentRefs: boolean = __VARIANT__;
 
 // TODO: These flags are hard-coded to the default values used in open source.
 // Update the tests so that they pass in either mode, then set these
 // to __VARIANT__.
-export const enableTrustedTypesIntegration = false;
+export const enableTrustedTypesIntegration: boolean = false;
 // You probably *don't* want to add more hardcoded ones.
 // Instead, try to add them above with the __VARIANT__ value.

packages/shared/forks/ReactFeatureFlags.www.js

@@ -43,19 +43,19 @@ export const enableProfilerCommitHooks = __PROFILE__;
 export const enableProfilerNestedUpdatePhase = __PROFILE__;
 export const enableUpdaterTracking = __PROFILE__;
 
-export const enableSuspenseAvoidThisFallback = true;
+export const enableSuspenseAvoidThisFallback: boolean = true;
 
-export const enableCPUSuspense = true;
-export const enableUseEffectEventHook = true;
-export const enableMoveBefore = false;
-export const disableInputAttributeSyncing = false;
-export const enableLegacyFBSupport = true;
+export const enableCPUSuspense: boolean = true;
+export const enableUseEffectEventHook: boolean = true;
+export const enableMoveBefore: boolean = false;
+export const disableInputAttributeSyncing: boolean = false;
+export const enableLegacyFBSupport: boolean = true;
 
-export const enableYieldingBeforePassive = false;
+export const enableYieldingBeforePassive: boolean = false;
 
-export const enableThrottledScheduling = false;
+export const enableThrottledScheduling: boolean = false;
 
-export const enableHydrationLaneScheduling = true;
+export const enableHydrationLaneScheduling: boolean = true;
 
 // Logs additional User Timing API marks for use with an experimental profiling tool.
 export const enableSchedulingProfiler: boolean =
@@ -63,52 +63,52 @@ export const enableSchedulingProfiler: boolean =
 
 export const disableLegacyContext = __EXPERIMENTAL__;
 
-export const enableLegacyCache = true;
+export const enableLegacyCache: boolean = true;
 
-export const enableAsyncIterableChildren = false;
+export const enableAsyncIterableChildren: boolean = false;
 
-export const enableTaint = false;
+export const enableTaint: boolean = false;
 
-export const enablePostpone = false;
+export const enablePostpone: boolean = false;
 
-export const enableHalt = false;
+export const enableHalt: boolean = false;
 
 // TODO: www currently relies on this feature. It's disabled in open source.
 // Need to remove it.
-export const disableCommentsAsDOMContainers = false;
+export const disableCommentsAsDOMContainers: boolean = false;
 
-export const enableCreateEventHandleAPI = true;
+export const enableCreateEventHandleAPI: boolean = true;
 
-export const enableScopeAPI = true;
+export const enableScopeAPI: boolean = true;
 
-export const enableSuspenseCallback = true;
+export const enableSuspenseCallback: boolean = true;
 
-export const enableLegacyHidden = true;
+export const enableLegacyHidden: boolean = true;
 
 export const disableTextareaChildren = __EXPERIMENTAL__;
 
-export const enableFizzExternalRuntime = true;
+export const enableFizzExternalRuntime: boolean = true;
 
-export const passChildrenWhenCloningPersistedNodes = false;
+export const passChildrenWhenCloningPersistedNodes: boolean = false;
 
-export const enablePersistedModeClonedFlag = false;
+export const enablePersistedModeClonedFlag: boolean = false;
 
-export const enableAsyncDebugInfo = false;
-export const disableClientCache = true;
+export const enableAsyncDebugInfo: boolean = false;
+export const disableClientCache: boolean = true;
 
-export const enableReactTestRendererWarning = false;
+export const enableReactTestRendererWarning: boolean = false;
 
-export const disableLegacyMode = true;
+export const disableLegacyMode: boolean = true;
 
-export const enableEagerAlternateStateNodeCleanup = true;
+export const enableEagerAlternateStateNodeCleanup: boolean = true;
 
-export const enableGestureTransition = false;
+export const enableGestureTransition: boolean = false;
 
-export const enableSuspenseyImages = false;
-export const enableFizzBlockingRender = true;
-export const enableSrcObject = false;
-export const enableHydrationChangeEvent = false;
-export const enableDefaultTransitionIndicator = false;
+export const enableSuspenseyImages: boolean = false;
+export const enableFizzBlockingRender: boolean = true;
+export const enableSrcObject: boolean = false;
+export const enableHydrationChangeEvent: boolean = false;
+export const enableDefaultTransitionIndicator: boolean = false;
 
 export const ownerStackLimit = 1e4;
 

yarn.lock

@@ -9108,12 +9108,12 @@ flatted@^3.2.9:
   resolved "https://registry.yarnpkg.com/flatted/-/flatted-3.3.1.tgz#21db470729a6734d4997002f439cb308987f567a"
   integrity sha512-X8cqMLLie7KsNUDSdzeN8FYK9rEt4Dt67OsG/DNGnYTSDBG4uFAJFBnUeiV+zCVAvwFy56IjM9sH51jVaEhNxw==
 
-flow-bin@^0.256:
-  version "0.256.0"
-  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.256.0.tgz#0cddc3b665b8e9cae34eb5896c8429d0f2961fdf"
-  integrity sha512-ujKn6fRfx9SujbqBLhT/lxFsXRsRDgrot2UuNhw4Z5W3QlVn4teV+7rBhs87FVHSnRvZeFAMKHHYYahWYw5W4w==
+flow-bin@^0.257:
+  version "0.257.1"
+  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.257.1.tgz#0cae61fb756b443b5cbbb4637905570579f9a216"
+  integrity sha512-jDn/4uCXX8NlnRJbQD/4B60Id7Vm1+y+LsgJMevhN+6vCPZ1jVV8LGGTcdhsogyIPf9orTt5fROo2FemRZD9kA==
 
-flow-remove-types@^2.256:
+flow-remove-types@^2.257:
   version "2.279.0"
   resolved "https://registry.yarnpkg.com/flow-remove-types/-/flow-remove-types-2.279.0.tgz#3a3388d9158eba0f82c40d80d31d9640b883a3f5"
   integrity sha512-bPFloMR/A2b/r/sIsf7Ix0LaMicCJNjwhXc4xEEQVzJCIz5u7C7XDaEOXOiqveKlCYK7DcBNn6R01Cbbc9gsYA==