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bb0944fe5b
## Summary
We want to enable the new event loop in React Native
(https://github.com/react-native-community/discussions-and-proposals/pull/744)
for all users in the new architecture (determined by the use of
bridgeless, not by the use of Fabric). In order to leverage that, we
need to also set the flag for the React reconciler to use microtasks for
scheduling (so we'll execute them at the right time in the new event
loop).
This migrates from the previous approach using a dynamic flag (to be
used at Meta) with the check of a global set by React Native. The reason
for doing this is:
1) We still need to determine this dynamically in OSS (based on
Bridgeless, not on Fabric).
2) We still need the ability to configure the behavior at Meta, and for
internal build system reasons we cannot access the flag that enables
microtasks in
[`ReactNativeFeatureFlags`](6c28c87c4d/packages/react-native/src/private/featureflags/ReactNativeFeatureFlags.js (L121)).
## How did you test this change?
Manually synchronized the changes to React Native and ran all tests for
the new architecture on it. Also tested manually.
> [!NOTE]
> This change depends on
https://github.com/facebook/react-native/pull/43397 which has been
merged already
37 lines
1.6 KiB
JavaScript
37 lines
1.6 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 strict
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*/
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import typeof * as ExportsType from './ReactFeatureFlags.native-fb-dynamic';
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import typeof * as DynamicFlagsType from 'ReactNativeInternalFeatureFlags';
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// In xplat, these flags are controlled by GKs. Because most GKs have some
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// population running in either mode, we should run our tests that way, too,
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//
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// Use __VARIANT__ to simulate a GK. The tests will be run twice: once
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// with the __VARIANT__ set to `true`, and once set to `false`.
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//
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// TODO: __VARIANT__ isn't supported for React Native flags yet. You can set the
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// flag here but it won't be set to `true` in any of our test runs. Need to
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// update the test configuration.
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export const alwaysThrottleRetries = __VARIANT__;
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export const consoleManagedByDevToolsDuringStrictMode = __VARIANT__;
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export const enableAsyncActions = __VARIANT__;
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export const enableComponentStackLocations = __VARIANT__;
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export const enableDeferRootSchedulingToMicrotask = __VARIANT__;
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export const enableInfiniteRenderLoopDetection = __VARIANT__;
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export const enableRenderableContext = __VARIANT__;
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export const enableUnifiedSyncLane = __VARIANT__;
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export const enableUseRefAccessWarning = __VARIANT__;
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export const passChildrenWhenCloningPersistedNodes = __VARIANT__;
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export const useModernStrictMode = __VARIANT__;
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// Flow magic to verify the exports of this file match the original version.
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((((null: any): ExportsType): DynamicFlagsType): ExportsType);
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