__``/*  * Copyright (c) Facebook, Inc. and its affiliates.  *  * This source code is licensed under the MIT license found in the  * LICENSE file in the root directory of this source tree.  */ #import "RCTNativeModule.h" #import <React/RCTBridge.h> #import <React/RCTBridgeMethod.h> #import <React/RCTBridgeModule.h> #import <React/RCTCxxUtils.h> #import <React/RCTFollyConvert.h> #import <React/RCTLog.h> #import <React/RCTProfile.h> #import <React/RCTUtils.h> #ifdef WITH_FBSYSTRACE #include <fbsystrace.h> #endif namespace facebook { namespace react { static MethodCallResult invokeInner(RCTBridge *bridge, RCTModuleData *moduleData, unsigned int methodId, const folly::dynamic &params); RCTNativeModule::RCTNativeModule(RCTBridge *bridge, RCTModuleData *moduleData)   : m_bridge(bridge), m_moduleData(moduleData) { } std::string RCTNativeModule::getName() {  return [m_moduleData.name UTF8String]; } std::vector RCTNativeModule::getMethods() {  std::vector descs;  for (id method in m_moduleData.methods) {   descs.emplace_back(method.JSMethodName, RCTFunctionDescriptorFromType(method.functionType));  }  return descs; } folly::dynamic RCTNativeModule::getConstants() {  RCT_PROFILE_BEGIN_EVENT(RCTProfileTagAlways, @"[RCTNativeModule getConstants] moduleData.exportedConstants", nil);  NSDictionary *constants = m_moduleData.exportedConstants;  folly::dynamic ret = convertIdToFollyDynamic(constants);  RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");  return ret; } void RCTNativeModule::invoke(unsigned int methodId, folly::dynamic &&params, int callId) {  // capture by weak pointer so that we can safely use these variables in a callback  __weak RCTBridge *weakBridge = m_bridge;  __weak RCTModuleData *weakModuleData = m_moduleData;  // The BatchedBridge version of this buckets all the callbacks by thread, and  // queues one block on each. This is much simpler; we'll see how it goes and  // iterate.  dispatch_block_t block = [weakBridge, weakModuleData, methodId, params = std::move(params), callId] { #ifdef WITH_FBSYSTRACE   if (callId != -1) {    fbsystrace_end_async_flow(TRACE_TAG_REACT_APPS, "native", callId);   } #else   (void)(callId); #endif   invokeInner(weakBridge, weakModuleData, methodId, std::move(params));  };  dispatch_queue_t queue = m_moduleData.methodQueue;  if (queue == RCTJSThread) {   block();  } else if (queue) {   dispatch_async(queue, block);  } #ifdef RCT_DEV  if (!queue) {   RCTLog(     @"Attempted to invoke %u (method ID) on %@ (NativeModule name) without a method queue.",     methodId,     m_moduleData.name);  } #endif } MethodCallResult RCTNativeModule::callSerializableNativeHook(unsigned int reactMethodId, folly::dynamic &&params) {  return invokeInner(m_bridge, m_moduleData, reactMethodId, params); } static MethodCallResult invokeInner(RCTBridge *bridge, RCTModuleData *moduleData, unsigned int methodId, const folly::dynamic &params) {  if (!bridge || !bridge.valid || !moduleData) {   return folly::none;  }  id method = moduleData.methods[methodId];  if (RCT_DEBUG && !method) {   RCTLogError(@"Unknown methodID: %ud for module: %@", methodId, moduleData.name);  }  NSArray *objcParams = convertFollyDynamicToId(params);  @try {   id result = [method invokeWithBridge:bridge module:moduleData.instance arguments:objcParams];   return convertIdToFollyDynamic(result);  } @catch (NSException *exception) {   // Pass on JS exceptions   if ([exception.name hasPrefix:RCTFatalExceptionName]) {    @throw exception;   } #if RCT_DEBUG   NSString *message = [NSString     stringWithFormat:@"Exception '%@' was thrown while invoking %s on target %@ with params %@\ncallstack: %@",              exception,              method.JSMethodName,              moduleData.name,              objcParams,              exception.callStackSymbols];   RCTFatal(RCTErrorWithMessage(message)); #else   RCTFatalException(exception); #endif  }  return folly::none; } } } `__ when i open this on xcode project it redirects me here