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d34b457ce2
PR #15650 is a bugfix but it's technically a semantic change that could cause regressions. I don't think it will be an issue, since the previous behavior was both broken and incoherent, but out of an abundance of caution, let's wrap it in a flag so we can easily revert it if necessary.
73 lines
2.7 KiB
JavaScript
73 lines
2.7 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 strict
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*/
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export const enableUserTimingAPI = __DEV__;
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// Helps identify side effects in begin-phase lifecycle hooks and setState reducers:
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export const debugRenderPhaseSideEffects = false;
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// In some cases, StrictMode should also double-render lifecycles.
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// This can be confusing for tests though,
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// And it can be bad for performance in production.
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// This feature flag can be used to control the behavior:
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export const debugRenderPhaseSideEffectsForStrictMode = __DEV__;
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// To preserve the "Pause on caught exceptions" behavior of the debugger, we
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// replay the begin phase of a failed component inside invokeGuardedCallback.
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export const replayFailedUnitOfWorkWithInvokeGuardedCallback = __DEV__;
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// Warn about deprecated, async-unsafe lifecycles; relates to RFC #6:
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export const warnAboutDeprecatedLifecycles = true;
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// Gather advanced timing metrics for Profiler subtrees.
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export const enableProfilerTimer = __PROFILE__;
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// Trace which interactions trigger each commit.
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export const enableSchedulerTracing = __PROFILE__;
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// Only used in www builds.
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export const enableSuspenseServerRenderer = false; // TODO: __DEV__? Here it might just be false.
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// Only used in www builds.
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export const enableSchedulerDebugging = false;
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// Only used in www builds.
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export function addUserTimingListener() {
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throw new Error('Not implemented.');
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}
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// Disable javascript: URL strings in href for XSS protection.
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export const disableJavaScriptURLs = false;
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// Disables yielding during render in Concurrent Mode. Used for debugging only.
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export const disableYielding = false;
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// React Fire: prevent the value and checked attributes from syncing
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// with their related DOM properties
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export const disableInputAttributeSyncing = false;
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// These APIs will no longer be "unstable" in the upcoming 16.7 release,
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// Control this behavior with a flag to support 16.6 minor releases in the meanwhile.
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export const enableStableConcurrentModeAPIs = false;
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export const warnAboutShorthandPropertyCollision = false;
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// See https://github.com/react-native-community/discussions-and-proposals/issues/72 for more information
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// This is a flag so we can fix warnings in RN core before turning it on
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export const warnAboutDeprecatedSetNativeProps = false;
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// Experimental React Events support. Only used in www builds for now.
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export const enableEventAPI = false;
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// New API for JSX transforms to target - https://github.com/reactjs/rfcs/pull/107
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export const enableJSXTransformAPI = false;
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// Temporary flag to revert the fix in #15650
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export const revertPassiveEffectsChange = false;
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