feat: introduce RCTArchConfiguratorProtocol (#47306)

Summary:
This PR introduces `RCTArchConfiguratorProtocol` for better separation of concerns inside of RCTAppDelegate.

It's also a prerequisite for #46298

Discussed with cipolleschi

## Changelog:

[IOS] [ADDED] - introduce RCTArchConfiguratorProtocol

Pull Request resolved: #47306

Test Plan:
- CI Green
- Test if methods can be overriden

Reviewed By: realsoelynn

Differential Revision: D65212703

Pulled By: cipolleschi

fbshipit-source-id: 9850fec31c421f0c6230e7e23d7a208d823d828f

packages/react-native/Libraries/AppDelegate/RCTAppDelegate.h

@@ -8,6 +8,7 @@
 #import <React/RCTBridgeDelegate.h>
 #import <React/RCTConvert.h>
 #import <UIKit/UIKit.h>
+#import "RCTArchConfiguratorProtocol.h"
 #import "RCTRootViewFactory.h"
 #import "RCTUIConfiguratorProtocol.h"
 
@@ -56,8 +57,12 @@ NS_ASSUME_NONNULL_BEGIN
                                                          (const facebook::react::ObjCTurboModule::InitParams &)params
  *   - (id<RCTTurboModule>)getModuleInstanceFromClass:(Class)moduleClass
  */
-@interface RCTAppDelegate
-    : UIResponder <UIApplicationDelegate, UISceneDelegate, RCTBridgeDelegate, RCTUIConfiguratorProtocol>
+@interface RCTAppDelegate : UIResponder <
+                                UIApplicationDelegate,
+                                UISceneDelegate,
+                                RCTBridgeDelegate,
+                                RCTUIConfiguratorProtocol,
+                                RCTArchConfiguratorProtocol>
 
 /// The window object, used to render the UViewControllers
 @property (nonatomic, strong, nonnull) UIWindow *window;
@@ -107,27 +112,6 @@ NS_ASSUME_NONNULL_BEGIN
 /// @return a dictionary that associate a component for the new renderer with his descriptor.
 - (NSDictionary<NSString *, Class<RCTComponentViewProtocol>> *)thirdPartyFabricComponents;
 
-/// This method controls whether the `turboModules` feature of the New Architecture is turned on or off.
-///
-/// @note: This is required to be rendering on Fabric (i.e. on the New Architecture).
-/// @return: `true` if the Turbo Native Module are enabled. Otherwise, it returns `false`.
-- (BOOL)turboModuleEnabled __attribute__((deprecated("Use newArchEnabled instead")));
-
-/// This method controls whether the App will use the Fabric renderer of the New Architecture or not.
-///
-/// @return: `true` if the Fabric Renderer is enabled. Otherwise, it returns `false`.
-- (BOOL)fabricEnabled __attribute__((deprecated("Use newArchEnabled instead")));
-
-/// This method controls whether React Native's new initialization layer is enabled.
-///
-/// @return: `true` if the new initialization layer is enabled. Otherwise returns `false`.
-- (BOOL)bridgelessEnabled __attribute__((deprecated("Use newArchEnabled instead")));
-
-/// This method controls whether React Native uses new Architecture.
-///
-/// @return: `true` if the new architecture is enabled. Otherwise returns `false`.
-- (BOOL)newArchEnabled;
-
 /// Return the bundle URL for the main bundle.
 - (NSURL *__nullable)bundleURL;
 

packages/react-native/Libraries/AppDelegate/RCTArchConfiguratorProtocol.h

@@ -0,0 +1,32 @@
+/*
+ * 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.
+ */
+
+#import <React/RCTConvert.h>
+#import <UIKit/UIKit.h>
+
+@protocol RCTArchConfiguratorProtocol
+/// This method controls whether the `turboModules` feature of the New Architecture is turned on or off.
+///
+/// @note: This is required to be rendering on Fabric (i.e. on the New Architecture).
+/// @return: `true` if the Turbo Native Module are enabled. Otherwise, it returns `false`.
+- (BOOL)turboModuleEnabled __attribute__((deprecated("Use newArchEnabled instead")));
+
+/// This method controls whether the App will use the Fabric renderer of the New Architecture or not.
+///
+/// @return: `true` if the Fabric Renderer is enabled. Otherwise, it returns `false`.
+- (BOOL)fabricEnabled __attribute__((deprecated("Use newArchEnabled instead")));
+
+/// This method controls whether React Native's new initialization layer is enabled.
+///
+/// @return: `true` if the new initialization layer is enabled. Otherwise returns `false`.
+- (BOOL)bridgelessEnabled __attribute__((deprecated("Use newArchEnabled instead")));
+
+/// This method controls whether React Native uses new Architecture.
+///
+/// @return: `true` if the new architecture is enabled. Otherwise returns `false`.
+- (BOOL)newArchEnabled;
+@end