In Binding.cpp, retain reference to reactNativeConfig

Summary: Retain reference to reactNativeConfig to allow feature checks within core. This also rearranges the members of Binding to make them private instead of public.

Reviewed By: mdvacca

Differential Revision: D17275344

fbshipit-source-id: 67ad00aeebd3534a45a6ea8a28e14b7fcd9eb2e5

ReactAndroid/src/main/java/com/facebook/react/fabric/jni/Binding.cpp

@@ -223,6 +223,8 @@ void Binding::installFabricUIManager(
   contextContainer->insert("ReactNativeConfig", config);
   contextContainer->insert("FabricUIManager", javaUIManager_);
 
+  reactNativeConfig_ = config;
+
   auto toolbox = SchedulerToolbox{};
   toolbox.contextContainer = contextContainer;
   toolbox.componentRegistryFactory = componentsRegistry->buildRegistryFunction;
@@ -240,6 +242,7 @@ void Binding::uninstallFabricUIManager() {
 
   scheduler_ = nullptr;
   javaUIManager_ = nullptr;
+  reactNativeConfig_ = nullptr;
 }
 
 inline local_ref<ReadableMap::javaobject> castReadableMap(

ReactAndroid/src/main/java/com/facebook/react/fabric/jni/Binding.h

@@ -26,16 +26,6 @@ class Binding : public jni::HybridClass<Binding>, public SchedulerDelegate {
 
   static void registerNatives();
 
-  jni::global_ref<jobject> javaUIManager_;
-  std::mutex javaUIManagerMutex_;
-
-  std::shared_ptr<Scheduler> scheduler_;
-  std::mutex schedulerMutex_;
-
-  std::recursive_mutex commitMutex_;
-
-  float pointScaleFactor_ = 1;
-
  private:
   jni::global_ref<jobject> getJavaUIManager();
   std::shared_ptr<Scheduler> getScheduler();
@@ -98,6 +88,19 @@ class Binding : public jni::HybridClass<Binding>, public SchedulerDelegate {
   void schedulerDidClearJSResponder();
 
   void uninstallFabricUIManager();
+
+  // Private member variables
+  jni::global_ref<jobject> javaUIManager_;
+  std::mutex javaUIManagerMutex_;
+
+  std::shared_ptr<Scheduler> scheduler_;
+  std::mutex schedulerMutex_;
+
+  std::recursive_mutex commitMutex_;
+
+  float pointScaleFactor_ = 1;
+
+  std::shared_ptr<const ReactNativeConfig> reactNativeConfig_;
 };
 
 } // namespace react