From 0f8ef32830a486547c4d2f0b46846e2bc673fa5a Mon Sep 17 00:00:00 2001
From: Samuel Susla <samuelsusla@meta.com>
Date: Wed, 19 Feb 2025 09:29:26 -0800
Subject: [PATCH] initialise RN proxy object in bridge (#49527)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/49527

changelog: [internal]

fix a deadlock when app that doesn't use bridgeless uses UIKit proxy objects.

Reviewed By: jeffreyporter, Dawn-Top

Differential Revision: D69855097

fbshipit-source-id: a158daa2a6de1a0aebfb9fbf3d758ffa3afec7be
---
 packages/react-native/React/Fabric/RCTSurfacePresenter.mm      | 2 ++
 .../react/runtime/platform/ios/ReactCommon/RCTHost.mm          | 3 ---
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/packages/react-native/React/Fabric/RCTSurfacePresenter.mm b/packages/react-native/React/Fabric/RCTSurfacePresenter.mm
index dbea5607fb9..11452ab5602 100644
--- a/packages/react-native/React/Fabric/RCTSurfacePresenter.mm
+++ b/packages/react-native/React/Fabric/RCTSurfacePresenter.mm
@@ -18,6 +18,7 @@
 #import <React/RCTFabricSurface.h>
 #import <React/RCTFollyConvert.h>
 #import <React/RCTI18nUtil.h>
+#import <React/RCTInitializeUIKitProxies.h>
 #import <React/RCTMountingManager.h>
 #import <React/RCTMountingManagerDelegate.h>
 #import <React/RCTScheduler.h>
@@ -64,6 +65,7 @@ using namespace facebook::react;
               bridgelessBindingsExecutor:(std::optional<RuntimeExecutor>)bridgelessBindingsExecutor
 {
   if (self = [super init]) {
+    RCTInitializeUIKitProxies();
     assert(contextContainer && "RuntimeExecutor must be not null.");
     _runtimeExecutor = runtimeExecutor;
     _bridgelessBindingsExecutor = bridgelessBindingsExecutor;
diff --git a/packages/react-native/ReactCommon/react/runtime/platform/ios/ReactCommon/RCTHost.mm b/packages/react-native/ReactCommon/react/runtime/platform/ios/ReactCommon/RCTHost.mm
index 26d75e51aa0..5142307e8b9 100644
--- a/packages/react-native/ReactCommon/react/runtime/platform/ios/ReactCommon/RCTHost.mm
+++ b/packages/react-native/ReactCommon/react/runtime/platform/ios/ReactCommon/RCTHost.mm
@@ -12,7 +12,6 @@
 #import <React/RCTBridgeModule.h>
 #import <React/RCTConvert.h>
 #import <React/RCTFabricSurface.h>
-#import <React/RCTInitializeUIKitProxies.h>
 #import <React/RCTInspectorDevServerHelper.h>
 #import <React/RCTInspectorNetworkHelper.h>
 #import <React/RCTInspectorUtils.h>
@@ -249,8 +248,6 @@ class RCTHostHostTargetDelegate : public facebook::react::jsinspector_modern::Ho
                                              mode:(DisplayMode)displayMode
                                 initialProperties:(NSDictionary *)properties
 {
-  RCTInitializeUIKitProxies();
-
   RCTFabricSurface *surface = [[RCTFabricSurface alloc] initWithSurfacePresenter:self.surfacePresenter
                                                                       moduleName:moduleName
                                                                initialProperties:properties];