From 4e2fe10fa388d499ba20a2821c9ddb1a6b129320 Mon Sep 17 00:00:00 2001
From: Timothy Yung <yungsters@meta.com>
Date: Fri, 8 Mar 2024 09:20:03 -0800
Subject: [PATCH] Configure "Always On" Feature Flags for React Native (#28519)

## Summary

This PR is a subset of https://github.com/facebook/react/pull/28425,
which only includes the feature flags that will be configured as "always
on" (i.e. not "dynamic").

The following list summarizes the feature flag changes:

* RN FB
  * Always Enable
    * enableCache
    * enableCustomElementPropertySupport
* RN OSS
  * Always Enable
    * disableLegacyContext
    * enableCache
    * enableCustomElementPropertySupport
* RN Test
  * Always Enable
    * disableModulePatternComponents
    * enableCustomElementPropertySupport

## How did you test this change?

Ran the following successfully:

```
$ yarn test
$ yarn flow native
$ yarn flow fabric
```
---
 packages/shared/forks/ReactFeatureFlags.native-fb.js        | 4 ++--
 packages/shared/forks/ReactFeatureFlags.native-oss.js       | 6 +++---
 .../shared/forks/ReactFeatureFlags.test-renderer.native.js  | 3 ++-
 3 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/packages/shared/forks/ReactFeatureFlags.native-fb.js b/packages/shared/forks/ReactFeatureFlags.native-fb.js
index c78362e810e6a..5cdf864d664ee 100644
--- a/packages/shared/forks/ReactFeatureFlags.native-fb.js
+++ b/packages/shared/forks/ReactFeatureFlags.native-fb.js
@@ -38,7 +38,7 @@ export const enableProfilerCommitHooks = __PROFILE__;
 export const enableProfilerNestedUpdatePhase = __PROFILE__;
 export const enableProfilerNestedUpdateScheduledHook = false;
 export const enableUpdaterTracking = __PROFILE__;
-export const enableCache = false;
+export const enableCache = true;
 export const enableLegacyCache = false;
 export const enableCacheElement = true;
 export const enableFetchInstrumentation = false;
@@ -79,7 +79,7 @@ export const enableLazyContextPropagation = false;
 export const enableLegacyHidden = false;
 export const forceConcurrentByDefaultForTesting = false;
 export const allowConcurrentByDefault = false;
-export const enableCustomElementPropertySupport = false;
+export const enableCustomElementPropertySupport = true;
 
 export const consoleManagedByDevToolsDuringStrictMode = false;
 
diff --git a/packages/shared/forks/ReactFeatureFlags.native-oss.js b/packages/shared/forks/ReactFeatureFlags.native-oss.js
index 1db47db31b857..4e2cb98f560c2 100644
--- a/packages/shared/forks/ReactFeatureFlags.native-oss.js
+++ b/packages/shared/forks/ReactFeatureFlags.native-oss.js
@@ -20,7 +20,7 @@ export const enableProfilerCommitHooks = __PROFILE__;
 export const enableProfilerNestedUpdatePhase = __PROFILE__;
 export const enableProfilerNestedUpdateScheduledHook = false;
 export const enableUpdaterTracking = __PROFILE__;
-export const enableCache = false;
+export const enableCache = true;
 export const enableLegacyCache = false;
 export const enableCacheElement = true;
 export const enableFetchInstrumentation = false;
@@ -35,7 +35,7 @@ export const disableIEWorkarounds = true;
 export const enableScopeAPI = false;
 export const enableCreateEventHandleAPI = false;
 export const enableSuspenseCallback = false;
-export const disableLegacyContext = false;
+export const disableLegacyContext = true;
 export const enableTrustedTypesIntegration = false;
 export const disableTextareaChildren = false;
 export const disableModulePatternComponents = false;
@@ -64,7 +64,7 @@ export const enableLegacyHidden = false;
 export const forceConcurrentByDefaultForTesting = false;
 export const enableUnifiedSyncLane = true;
 export const allowConcurrentByDefault = false;
-export const enableCustomElementPropertySupport = false;
+export const enableCustomElementPropertySupport = true;
 
 export const consoleManagedByDevToolsDuringStrictMode = false;
 
diff --git a/packages/shared/forks/ReactFeatureFlags.test-renderer.native.js b/packages/shared/forks/ReactFeatureFlags.test-renderer.native.js
index 5de35a8b21ee2..0aa3ca1a6749c 100644
--- a/packages/shared/forks/ReactFeatureFlags.test-renderer.native.js
+++ b/packages/shared/forks/ReactFeatureFlags.test-renderer.native.js
@@ -38,7 +38,7 @@ export const enableSuspenseCallback = false;
 export const disableLegacyContext = false;
 export const enableTrustedTypesIntegration = false;
 export const disableTextareaChildren = false;
-export const disableModulePatternComponents = false;
+export const disableModulePatternComponents = true;
 export const enableComponentStackLocations = false;
 export const enableLegacyFBSupport = false;
 export const enableFilterEmptyStringAttributesDOM = true;
@@ -64,6 +64,7 @@ export const enableLegacyHidden = false;
 export const forceConcurrentByDefaultForTesting = false;
 export const enableUnifiedSyncLane = true;
 export const allowConcurrentByDefault = true;
+export const enableCustomElementPropertySupport = true;
 
 export const consoleManagedByDevToolsDuringStrictMode = false;