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c59c3dfe55
Reading or writing a ref value during render is only safe if you are implementing the lazy initialization pattern. Other types of reading are unsafe as the ref is a mutable source. Other types of writing are unsafe as they are effectively side effects. This change also refactors useTransition to no longer use a ref hook, but instead manage its own (stable) hook state.
60 lines
2.5 KiB
JavaScript
60 lines
2.5 KiB
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its 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.testing';
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export const debugRenderPhaseSideEffectsForStrictMode = false;
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export const enableDebugTracing = false;
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export const enableSchedulingProfiler = false;
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export const warnAboutDeprecatedLifecycles = true;
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export const replayFailedUnitOfWorkWithInvokeGuardedCallback = false;
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export const enableProfilerTimer = __PROFILE__;
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export const enableProfilerCommitHooks = false;
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export const enableSchedulerTracing = __PROFILE__;
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export const enableSuspenseServerRenderer = false;
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export const enableSelectiveHydration = false;
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export const enableBlocksAPI = false;
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export const enableLazyElements = false;
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export const disableJavaScriptURLs = false;
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export const disableInputAttributeSyncing = false;
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export const enableSchedulerDebugging = false;
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export const enableFundamentalAPI = false;
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export const enableScopeAPI = false;
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export const enableCreateEventHandleAPI = false;
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export const warnAboutUnmockedScheduler = false;
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export const enableSuspenseCallback = false;
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export const warnAboutDefaultPropsOnFunctionComponents = false;
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export const warnAboutStringRefs = false;
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export const disableLegacyContext = false;
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export const disableSchedulerTimeoutBasedOnReactExpirationTime = false;
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export const enableTrustedTypesIntegration = false;
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export const disableTextareaChildren = false;
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export const disableModulePatternComponents = false;
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export const warnUnstableRenderSubtreeIntoContainer = false;
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export const warnAboutSpreadingKeyToJSX = false;
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export const enableComponentStackLocations = true;
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export const enableLegacyFBSupport = false;
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export const enableFilterEmptyStringAttributesDOM = false;
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export const skipUnmountedBoundaries = false;
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export const enableNewReconciler = false;
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export const deferRenderPhaseUpdateToNextBatch = true;
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export const decoupleUpdatePriorityFromScheduler = false;
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export const enableDiscreteEventFlushingChange = false;
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export const enableDoubleInvokingEffects = false;
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export const enableUseRefAccessWarning = false;
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// Flow magic to verify the exports of this file match the original version.
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// eslint-disable-next-line no-unused-vars
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type Check<_X, Y: _X, X: Y = _X> = null;
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// eslint-disable-next-line no-unused-expressions
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(null: Check<ExportsType, FeatureFlagsType>);
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