react/packages/shared/forks/ReactFeatureFlags.testing.js

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/**
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow
*/
import typeof * as FeatureFlagsType from 'shared/ReactFeatureFlags';
import typeof * as ExportsType from './ReactFeatureFlags.testing';
export const debugRenderPhaseSideEffectsForStrictMode = false;
export const enableDebugTracing = false;
export const enableSchedulingProfiler = __PROFILE__;
export const warnAboutDeprecatedLifecycles = true;
export const replayFailedUnitOfWorkWithInvokeGuardedCallback = false;
export const enableProfilerTimer = __PROFILE__;
export const enableProfilerCommitHooks = __PROFILE__;
export const enableProfilerNestedUpdatePhase = __PROFILE__;
export const enableProfilerNestedUpdateScheduledHook = false;
export const enableUpdaterTracking = false;
export const enableCache = __EXPERIMENTAL__;
export const enableLegacyCache = __EXPERIMENTAL__;
export const enableCacheElement = __EXPERIMENTAL__;
export const enableFetchInstrumentation = __EXPERIMENTAL__;
export const disableJavaScriptURLs = false;
export const disableCommentsAsDOMContainers = true;
export const disableInputAttributeSyncing = false;
export const enableSchedulerDebugging = false;
export const enableScopeAPI = false;
export const enableCreateEventHandleAPI = false;
export const enableSuspenseCallback = false;
export const warnAboutDefaultPropsOnFunctionComponents = true;
export const warnAboutStringRefs = true;
export const disableLegacyContext = false;
export const disableSchedulerTimeoutBasedOnReactExpirationTime = false;
export const enableTrustedTypesIntegration = false;
export const disableTextareaChildren = false;
export const disableModulePatternComponents = false;
export const warnAboutSpreadingKeyToJSX = true;
export const enableSuspenseAvoidThisFallback = false;
export const enableSuspenseAvoidThisFallbackFizz = false;
export const enableCPUSuspense = false;
export const enableUseHook = true;
export const enableUseMemoCacheHook = false;
export const enableUseEventHook = false;
export const enableCapturePhaseSelectiveHydrationWithoutDiscreteEventReplay = true;
export const enableClientRenderFallbackOnTextMismatch = true;
export const enableComponentStackLocations = true;
export const enableLegacyFBSupport = false;
export const enableFilterEmptyStringAttributesDOM = false;
export const disableNativeComponentFrames = false;
export const skipUnmountedBoundaries = false;
export const deletedTreeCleanUpLevel = 3;
export const enableGetInspectorDataForInstanceInProduction = false;
export const deferRenderPhaseUpdateToNextBatch = false;
Add StrictMode level prop and createRoot unstable_strictModeLevel option (#20849) * The exported '<React.StrictMode>' tag remains the same and opts legacy subtrees into strict mode level one ('mode == StrictModeL1'). This mode enables DEV-only double rendering, double component lifecycles, string ref warnings, legacy context warnings, etc. The primary purpose of this mode is to help detected render phase side effects. No new behavior. Roots created with experimental 'createRoot' and 'createBlockingRoot' APIs will also (for now) continue to default to strict mode level 1. In a subsequent commit I will add support for a 'level' attribute on the '<React.StrictMode>' tag (as well as a new option supported by ). This will be the way to opt into strict mode level 2 ('mode == StrictModeL2'). This mode will enable DEV-only double invoking of effects on initial mount. This will simulate future Offscreen API semantics for trees being mounted, then hidden, and then shown again. The primary purpose of this mode is to enable applications to prepare for compatibility with the new Offscreen API (more information to follow shortly). For now, this commit changes no public facing behavior. The only mechanism for opting into strict mode level 2 is the pre-existing 'enableDoubleInvokingEffects' feature flag (only enabled within Facebook for now). * Renamed strict mode constants StrictModeL1 -> StrictLegacyMode and StrictModeL2 -> StrictEffectsMode * Renamed tests * Split strict effects mode into two flags One flag ('enableStrictEffects') enables strict mode level 2. It is similar to 'debugRenderPhaseSideEffectsForStrictMode' which enables srtict mode level 1. The second flag ('createRootStrictEffectsByDefault') controls the default strict mode level for 'createRoot' trees. For now, all 'createRoot' trees remain level 1 by default. We will experiment with level 2 within Facebook. This is a prerequisite for adding a configurable option to 'createRoot' that enables choosing a different StrictMode level than the default. * Add StrictMode 'unstable_level' prop and createRoot 'unstable_strictModeLevel' option New StrictMode 'unstable_level' prop allows specifying which level of strict mode to use. If no level attribute is specified, StrictLegacyMode will be used to maintain backwards compatibility. Otherwise the following is true: * Level 0 does nothing * Level 1 selects StrictLegacyMode * Level 2 selects StrictEffectsMode (which includes StrictLegacyMode) Levels can be increased with nesting (0 -> 1 -> 2) but not decreased. This commit also adds a new 'unstable_strictModeLevel' option to the createRoot and createBatchedRoot APIs. This option can be used to override default behavior to increase or decrease the StrictMode level of the root. A subsequent commit will add additional DEV warnings: * If a nested StrictMode tag attempts to explicitly decrease the level * If a level attribute changes in an update
2021-02-25 05:14:14 +08:00
export const createRootStrictEffectsByDefault = false;
export const enableUseRefAccessWarning = false;
export const disableSchedulerTimeoutInWorkLoop = false;
export const enableLazyContextPropagation = false;
export const enableLegacyHidden = false;
export const enableSyncDefaultUpdates = true;
export const allowConcurrentByDefault = false;
Add custom element property support behind a flag (#22184) * custom element props * custom element events * use function type for on* * tests, htmlFor * className * fix ReactDOMComponent-test * started on adding feature flag * added feature flag to all feature flag files * everything passes * tried to fix getPropertyInfo * used @gate and __experimental__ * remove flag gating for test which already passes * fix onClick test * add __EXPERIMENTAL__ to www flags, rename eventProxy * Add innerText and textContent to reservedProps * Emit warning when assigning to read only properties in client * Revert "Emit warning when assigning to read only properties in client" This reverts commit 1a093e584ce50e2e634aa743e04f9cb8fc2b3f7d. * Emit warning when assigning to read only properties during hydration * yarn prettier-all * Gate hydration warning test on flag * Fix gating in hydration warning test * Fix assignment to boolean properties * Replace _listeners with random suffix matching * Improve gating for hydration warning test * Add outerText and outerHTML to server warning properties * remove nameLower logic * fix capture event listener test * Add coverage for changing custom event listeners * yarn prettier-all * yarn lint --fix * replace getCustomElementEventHandlersFromNode with getFiberCurrentPropsFromNode * Remove previous value when adding event listener * flow, lint, prettier * Add dispatchEvent to make sure nothing crashes * Add state change to reserved attribute tests * Add missing feature flag test gate * Reimplement SSR changes in ReactDOMServerFormatConfig * Test hydration for objects and functions * add missing test gate * remove extraneous comment * Add attribute->property test
2021-12-08 23:11:42 +08:00
export const enableCustomElementPropertySupport = false;
export const consoleManagedByDevToolsDuringStrictMode = false;
export const enableServerContext = true;
export const enableUseMutableSource = false;
export const enableTransitionTracing = false;
export const enableFloat = true;
export const enableHostSingletons = true;
export const useModernStrictMode = false;
export const enableFizzExternalRuntime = false;
// Flow magic to verify the exports of this file match the original version.
((((null: any): ExportsType): FeatureFlagsType): ExportsType);