mirror of
https://github.com/facebook/react.git
synced 2025-11-01 09:12:30 +00:00
Andrew Clark
fa2f82addc
Depends on: - #28317 - #28320 --- Changes the behavior of the JSX runtime to pass through `ref` as a normal prop, rather than plucking it from the props object and storing on the element. This is a breaking change since it changes the type of the receiving component. However, most code is unaffected since it's unlikely that a component would have attempted to access a `ref` prop, since it was not possible to get a reference to one. `forwardRef` _will_ still pluck `ref` from the props object, though, since it's extremely common for users to spread the props object onto the inner component and pass `ref` as a differently named prop. This is for maximum compatibility with existing code — the real impact of this change is that `forwardRef` is no longer required. Currently, refs are resolved during child reconciliation and stored on the fiber. As a result of this change, we can move ref resolution to happen only much later, and only for components that actually use them. Then we can remove the `ref` field from the Fiber type. I have not yet done that in this step, though.
106 lines
4.3 KiB
JavaScript
106 lines
4.3 KiB
JavaScript
/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @flow
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*/
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import typeof * as FeatureFlagsType from 'shared/ReactFeatureFlags';
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import typeof * as ExportsType from './ReactFeatureFlags.native-fb';
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// NOTE: There are no flags, currently. Uncomment the stuff below if we add one.
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// Re-export dynamic flags from the internal module. Intentionally using *
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// because this import is compiled to a `require` call.
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import * as dynamicFlags from 'ReactNativeInternalFeatureFlags';
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// We destructure each value before re-exporting to avoid a dynamic look-up on
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// the exports object every time a flag is read.
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export const {
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alwaysThrottleRetries,
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enableDeferRootSchedulingToMicrotask,
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enableUseRefAccessWarning,
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passChildrenWhenCloningPersistedNodes,
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useMicrotasksForSchedulingInFabric,
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} = dynamicFlags;
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// The rest of the flags are static for better dead code elimination.
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export const disableModulePatternComponents = true;
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export const enableDebugTracing = false;
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export const enableAsyncDebugInfo = false;
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export const enableSchedulingProfiler = __PROFILE__;
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export const enableProfilerTimer = __PROFILE__;
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export const enableProfilerCommitHooks = __PROFILE__;
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export const enableProfilerNestedUpdatePhase = __PROFILE__;
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export const enableProfilerNestedUpdateScheduledHook = false;
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export const enableUpdaterTracking = __PROFILE__;
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export const enableCache = false;
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export const enableLegacyCache = false;
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export const enableCacheElement = true;
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export const enableFetchInstrumentation = false;
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export const enableFormActions = true; // Doesn't affect Native
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export const enableBinaryFlight = true;
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export const enableTaint = true;
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export const enablePostpone = false;
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export const debugRenderPhaseSideEffectsForStrictMode = __DEV__;
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export const disableJavaScriptURLs = true;
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export const disableCommentsAsDOMContainers = true;
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export const disableInputAttributeSyncing = false;
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export const disableIEWorkarounds = true;
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export const replayFailedUnitOfWorkWithInvokeGuardedCallback = __DEV__;
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export const enableScopeAPI = false;
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export const enableUnifiedSyncLane = true;
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export const enableCreateEventHandleAPI = false;
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export const enableSuspenseCallback = false;
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export const disableLegacyContext = false;
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export const enableTrustedTypesIntegration = false;
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export const disableTextareaChildren = false;
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export const enableSuspenseAvoidThisFallback = false;
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export const enableSuspenseAvoidThisFallbackFizz = false;
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export const enableCPUSuspense = true;
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export const enableUseMemoCacheHook = true;
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export const enableUseEffectEventHook = false;
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export const enableClientRenderFallbackOnTextMismatch = true;
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export const enableComponentStackLocations = false;
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export const enableLegacyFBSupport = false;
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export const enableFilterEmptyStringAttributesDOM = true;
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export const enableGetInspectorDataForInstanceInProduction = true;
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export const enableRenderableContext = false;
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export const enableRetryLaneExpiration = false;
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export const retryLaneExpirationMs = 5000;
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export const syncLaneExpirationMs = 250;
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export const transitionLaneExpirationMs = 5000;
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export const disableSchedulerTimeoutInWorkLoop = false;
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export const enableLazyContextPropagation = false;
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export const enableLegacyHidden = false;
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export const forceConcurrentByDefaultForTesting = false;
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export const allowConcurrentByDefault = false;
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export const enableCustomElementPropertySupport = false;
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export const consoleManagedByDevToolsDuringStrictMode = false;
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export const enableTransitionTracing = false;
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export const enableFloat = true;
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export const useModernStrictMode = false;
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export const enableDO_NOT_USE_disableStrictPassiveEffect = false;
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export const enableFizzExternalRuntime = true;
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export const enableAsyncActions = false;
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export const enableUseDeferredValueInitialArg = true;
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export const disableClientCache = true;
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export const enableServerComponentKeys = true;
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export const enableInfiniteRenderLoopDetection = false;
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// TODO: Roll out with GK. Don't keep as dynamic flag for too long, though,
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// because JSX is an extremely hot path.
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export const enableRefAsProp = false;
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// Flow magic to verify the exports of this file match the original version.
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((((null: any): ExportsType): FeatureFlagsType): ExportsType);
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