mirror of
https://github.com/zebrajr/react.git
synced 2025-12-06 12:20:20 +01:00
b1a56abd6a
Adds a feature flag `enableNewScheduler` that toggles between two implementations of ReactFiberScheduler. This will let us land changes in master while preserving the ability to quickly rollback. Ideally this will be a short-lived fork. Once we've tested the new scheduler for a week or so without issues, we will get rid of it. Until then, we'll need to maintain two parallel implementations and run tests against both of them. We rarely land changes to ReactFiberScheduler, so I don't expect this will be a huge burden. This commit does not implement anything new. The flag is still off and tests run against the existing implementation. Use `yarn test-new-scheduler` to run tests against the new one.
71 lines
2.6 KiB
JavaScript
71 lines
2.6 KiB
JavaScript
/**
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*
|
|
* @flow strict
|
|
*/
|
|
|
|
export const enableUserTimingAPI = __DEV__;
|
|
|
|
// Helps identify side effects in begin-phase lifecycle hooks and setState reducers:
|
|
export const debugRenderPhaseSideEffects = false;
|
|
|
|
// In some cases, StrictMode should also double-render lifecycles.
|
|
// This can be confusing for tests though,
|
|
// And it can be bad for performance in production.
|
|
// This feature flag can be used to control the behavior:
|
|
export const debugRenderPhaseSideEffectsForStrictMode = __DEV__;
|
|
|
|
// To preserve the "Pause on caught exceptions" behavior of the debugger, we
|
|
// replay the begin phase of a failed component inside invokeGuardedCallback.
|
|
export const replayFailedUnitOfWorkWithInvokeGuardedCallback = __DEV__;
|
|
|
|
// Warn about deprecated, async-unsafe lifecycles; relates to RFC #6:
|
|
export const warnAboutDeprecatedLifecycles = false;
|
|
|
|
// Gather advanced timing metrics for Profiler subtrees.
|
|
export const enableProfilerTimer = __PROFILE__;
|
|
|
|
// Trace which interactions trigger each commit.
|
|
export const enableSchedulerTracing = __PROFILE__;
|
|
|
|
// Only used in www builds.
|
|
export const enableSuspenseServerRenderer = false; // TODO: __DEV__? Here it might just be false.
|
|
|
|
// Only used in www builds.
|
|
export const enableSchedulerDebugging = false;
|
|
|
|
// Only used in www builds.
|
|
export function addUserTimingListener() {
|
|
throw new Error('Not implemented.');
|
|
}
|
|
|
|
// Disable javascript: URL strings in href for XSS protection.
|
|
export const disableJavaScriptURLs = false;
|
|
|
|
// Disables yielding during render in Concurrent Mode. Used for debugging only.
|
|
export const disableYielding = false;
|
|
|
|
// React Fire: prevent the value and checked attributes from syncing
|
|
// with their related DOM properties
|
|
export const disableInputAttributeSyncing = false;
|
|
|
|
// These APIs will no longer be "unstable" in the upcoming 16.7 release,
|
|
// Control this behavior with a flag to support 16.6 minor releases in the meanwhile.
|
|
export const enableStableConcurrentModeAPIs = false;
|
|
|
|
export const warnAboutShorthandPropertyCollision = false;
|
|
|
|
// See https://github.com/react-native-community/discussions-and-proposals/issues/72 for more information
|
|
// This is a flag so we can fix warnings in RN core before turning it on
|
|
export const warnAboutDeprecatedSetNativeProps = false;
|
|
|
|
// Experimental React Events support. Only used in www builds for now.
|
|
export const enableEventAPI = false;
|
|
|
|
// Enables rewritten version of ReactFiberScheduler. Added in case we need to
|
|
// quickly revert it.
|
|
export const enableNewScheduler = false;
|