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Introduce ReactNativeNewArchitectureFeatureFlagsDefaults (#45922)

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Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/45922

Introduce the ReactNativeNewArchitectureFeatureFlagsDefaults class, which initializes default values for ReactNativeFeatureFlags when the New architecture is  enabled.
This class is meant to be overrode by ReactNativeNewArchitectureFeatureFlagsDefaults or others apps migrating to the new architecture.

changelog: [internal] internal

Reviewed By: philIip

Differential Revision: D60861873

fbshipit-source-id: b31ba947dae999fea8bb4effd63c56dc142a5c3d
This commit is contained in:
David Vacca
2024-08-07 17:35:24 -07:00
committed by Facebook GitHub Bot
parent 6a1ecbb2bb
commit ff2a77a2e2
1 changed files with 43 additions and 0 deletions
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packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeNewArchitectureFeatureFlagsDefaults.kt
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// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
@file:Suppress("DEPRECATION") // We want to use ReactFeatureFlags here specifically
package com.facebook.react.internal.featureflags
import com.facebook.react.config.ReactFeatureFlags
/**
* This class initializes default values for ReactNativeFeatureFlags when the New architecture is
* enabled. This class is meant to be overrode only by internal apps migrating to the new
* architecture.
*
* NOTE: Be aware that as a side effect this class also modifies static fields in {@link
* com.facebook.react.config.ReactFeatureFlags} when newArchitectureEnabled is true.
*/
public open class ReactNativeNewArchitectureFeatureFlagsDefaults(
private val newArchitectureEnabled: Boolean
) : ReactNativeFeatureFlagsDefaults() {
init {
if (newArchitectureEnabled) {
// When the new architecture is enabled, we want to set the default values of the flags for
// Fabric, TurboModules and Bridgeless as enabled by default.
// ReactFeatureFlags is deprecated and will be deleted in 0.77, this code is temporary to
// support the new architecture before 0.77 cut.
ReactFeatureFlags.enableFabricRenderer = true
ReactFeatureFlags.useTurboModules = true
ReactFeatureFlags.enableBridgelessArchitecture = true
}
}
override fun batchRenderingUpdatesInEventLoop(): Boolean =
newArchitectureEnabled || super.batchRenderingUpdatesInEventLoop()
override fun useTurboModuleInterop(): Boolean =
newArchitectureEnabled || super.useTurboModuleInterop()
override fun useModernRuntimeScheduler(): Boolean = true
override fun enableMicrotasks(): Boolean = true
override fun useNativeViewConfigsInBridgelessMode(): Boolean = true
}