mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Alex Hunt
b5117520fc
Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/43329 Improve maintainability of this file, in particular reducing the probability of a merge conflict for new entries. Changelog: [Internal] Reviewed By: rubennorte Differential Revision: D54539469 fbshipit-source-id: dc2fca42b4490d87c532b21043b0855d8d1a894d
127 lines
4.0 KiB
C++
127 lines
4.0 KiB
C++
/*
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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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* @generated SignedSource<<036e7f3ee4def5b955ed61c707bbc8f8>>
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*/
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/**
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* IMPORTANT: Do NOT modify this file directly.
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*
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* To change the definition of the flags, edit
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* packages/react-native/scripts/featureflags/ReactNativeFeatureFlags.config.js.
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*
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* To regenerate this code, run the following script from the repo root:
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* yarn featureflags-update
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*/
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#pragma once
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#include <react/featureflags/ReactNativeFeatureFlagsAccessor.h>
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#include <react/featureflags/ReactNativeFeatureFlagsProvider.h>
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#include <memory>
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namespace facebook::react {
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/**
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* This class provides access to internal React Native feature flags.
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*
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* All the methods are thread-safe (as long as the methods in the overridden
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* provider are).
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*/
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class ReactNativeFeatureFlags {
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public:
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/**
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* Common flag for testing. Do NOT modify.
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*/
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static bool commonTestFlag();
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/**
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* When enabled, the RuntimeScheduler processing the event loop will batch all rendering updates and dispatch them together at the end of each iteration of the loop.
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*/
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static bool batchRenderingUpdatesInEventLoop();
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/**
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* Enables the use of a background executor to compute layout and commit updates on Fabric (this system is deprecated and should not be used).
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*/
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static bool enableBackgroundExecutor();
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/**
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* When enabled, Fabric will use customDrawOrder in ReactViewGroup (similar to old architecture).
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*/
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static bool enableCustomDrawOrderFabric();
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/**
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* Attempt at fixing a crash related to subview clipping on Android. This is a kill switch for the fix
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*/
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static bool enableFixForClippedSubviewsCrash();
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/**
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* Enables the use of microtasks in Hermes (scheduling) and RuntimeScheduler (execution).
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*/
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static bool enableMicrotasks();
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/**
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* Uses new, deduplicated logic for constructing Android Spannables from text fragments
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*/
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static bool enableSpannableBuildingUnification();
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/**
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* Flag determining if the C++ implementation of InspectorPackagerConnection should be used instead of the per-platform one. This flag is global and should not be changed across React Host lifetimes.
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*/
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static bool inspectorEnableCxxInspectorPackagerConnection();
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/**
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* Flag determining if the modern CDP backend should be enabled. This flag is global and should not be changed across React Host lifetimes.
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*/
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static bool inspectorEnableModernCDPRegistry();
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/**
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* When enabled, it uses the modern fork of RuntimeScheduler that allows scheduling tasks with priorities from any thread.
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*/
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static bool useModernRuntimeScheduler();
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/**
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* Overrides the feature flags with the ones provided by the given provider
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* (generally one that extends `ReactNativeFeatureFlagsDefaults`).
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*
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* This method must be called before you initialize the React Native runtime.
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*
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* @example
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*
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* ```
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* class MyReactNativeFeatureFlags : public ReactNativeFeatureFlagsDefaults {
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* public:
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* bool someFlag() override;
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* };
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*
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* ReactNativeFeatureFlags.override(
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* std::make_unique<MyReactNativeFeatureFlags>());
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* ```
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*/
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static void override(
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std::unique_ptr<ReactNativeFeatureFlagsProvider> provider);
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/**
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* Removes the overridden feature flags and makes the API return default
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* values again.
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*
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* This is **dangerous**. Use it only if you really understand the
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* implications of this method.
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*
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* This should only be called if you destroy the React Native runtime and
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* need to create a new one with different overrides. In that case,
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* call `dangerouslyReset` after destroying the runtime and `override` again
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* before initializing the new one.
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*/
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static void dangerouslyReset();
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private:
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ReactNativeFeatureFlags() = delete;
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static ReactNativeFeatureFlagsAccessor& getAccessor(bool reset = false);
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};
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} // namespace facebook::react
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