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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/react-native/React/CxxBridge
Просмотр файла: RCTCxxBridge.mm
/*
* 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.
*/
#include <atomic>
#include <future>
#import <React/RCTAssert.h>
#import <React/RCTBridge+Inspector.h>
#import <React/RCTBridge+Private.h>
#import <React/RCTBridge.h>
#import <React/RCTBridgeMethod.h>
#import <React/RCTBridgeModule.h>
#import <React/RCTBridgeModuleDecorator.h>
#import <React/RCTCallInvoker.h>
#import <React/RCTConstants.h>
#import <React/RCTConvert.h>
#import <React/RCTCxxBridgeDelegate.h>
#import <React/RCTCxxModule.h>
#import <React/RCTCxxUtils.h>
#import <React/RCTDevSettings.h>
#import <React/RCTDisplayLink.h>
#import <React/RCTJavaScriptLoader.h>
#import <React/RCTLog.h>
#import <React/RCTModuleData.h>
#import <React/RCTPerformanceLogger.h>
#import <React/RCTProfile.h>
#import <React/RCTRedBox.h>
#import <React/RCTRedBoxSetEnabled.h>
#import <React/RCTReloadCommand.h>
#import <React/RCTTurboModuleRegistry.h>
#import <React/RCTUtils.h>
#import <cxxreact/CxxNativeModule.h>
#import <cxxreact/Instance.h>
#import <cxxreact/JSBundleType.h>
#import <cxxreact/JSIndexedRAMBundle.h>
#import <cxxreact/ModuleRegistry.h>
#import <cxxreact/RAMBundleRegistry.h>
#import <cxxreact/ReactMarker.h>
#import <jsinspector-modern/ReactCdp.h>
#import <jsireact/JSIExecutor.h>
#import <react/utils/FollyConvert.h>
#import <reactperflogger/BridgeNativeModulePerfLogger.h>
#if !defined(USE_HERMES) || USE_HERMES == 1
#import <reacthermes/HermesExecutorFactory.h>
#endif
#import "RCTJSIExecutorRuntimeInstaller.h"
#import "NSDataBigString.h"
#import "RCTMessageThread.h"
#import "RCTObjcExecutor.h"
#ifdef WITH_FBSYSTRACE
#import <React/RCTFBSystrace.h>
#endif
#if RCT_DEV_MENU && __has_include(<React/RCTDevLoadingViewProtocol.h>)
#import <React/RCTDevLoadingViewProtocol.h>
#endif
#ifndef RCT_FIT_RM_OLD_RUNTIME
static NSString *const RCTJSThreadName = @"com.facebook.react.JavaScript";
typedef void (^RCTPendingCall)();
using namespace facebook::jsi;
using namespace facebook::react;
/**
* Must be kept in sync with `MessageQueue.js`.
*/
typedef NS_ENUM(NSInteger, RCTBridgeFields) {
RCTBridgeFieldRequestModuleIDs = 0,
RCTBridgeFieldMethodIDs,
RCTBridgeFieldParams,
RCTBridgeFieldCallID,
};
namespace {
int32_t getUniqueId()
{
static std::atomic<int32_t> counter{0};
return counter++;
}
class GetDescAdapter : public JSExecutorFactory {
public:
GetDescAdapter(RCTCxxBridge *bridge, std::shared_ptr<JSExecutorFactory> factory) : bridge_(bridge), factory_(factory)
{
}
std::unique_ptr<JSExecutor> createJSExecutor(
std::shared_ptr<ExecutorDelegate> delegate,
std::shared_ptr<MessageQueueThread> jsQueue) override
{
auto ret = factory_->createJSExecutor(delegate, jsQueue);
bridge_.bridgeDescription = @(ret->getDescription().c_str());
return ret;
}
private:
RCTCxxBridge *bridge_;
std::shared_ptr<JSExecutorFactory> factory_;
};
} // namespace
static void mapReactMarkerToPerformanceLogger(
const ReactMarker::ReactMarkerId markerId,
RCTPerformanceLogger *performanceLogger,
const char *tag)
{
switch (markerId) {
case ReactMarker::APP_STARTUP_START:
[performanceLogger markStartForTag:RCTPLAppStartup];
break;
case ReactMarker::APP_STARTUP_STOP:
[performanceLogger markStopForTag:RCTPLAppStartup];
break;
case ReactMarker::INIT_REACT_RUNTIME_START:
[performanceLogger markStartForTag:RCTPLInitReactRuntime];
break;
case ReactMarker::INIT_REACT_RUNTIME_STOP:
[performanceLogger markStopForTag:RCTPLInitReactRuntime];
break;
case ReactMarker::RUN_JS_BUNDLE_START:
[performanceLogger markStartForTag:RCTPLScriptExecution];
break;
case ReactMarker::RUN_JS_BUNDLE_STOP:
[performanceLogger markStopForTag:RCTPLScriptExecution];
break;
case ReactMarker::NATIVE_REQUIRE_START:
[performanceLogger appendStartForTag:RCTPLRAMNativeRequires];
break;
case ReactMarker::NATIVE_REQUIRE_STOP:
[performanceLogger appendStopForTag:RCTPLRAMNativeRequires];
[performanceLogger addValue:1 forTag:RCTPLRAMNativeRequiresCount];
break;
case ReactMarker::NATIVE_MODULE_SETUP_START:
[performanceLogger markStartForTag:RCTPLNativeModuleSetup];
break;
case ReactMarker::NATIVE_MODULE_SETUP_STOP:
[performanceLogger markStopForTag:RCTPLNativeModuleSetup];
break;
// Not needed in bridge mode.
case ReactMarker::REACT_INSTANCE_INIT_START:
case ReactMarker::REACT_INSTANCE_INIT_STOP:
// Not used on iOS.
case ReactMarker::CREATE_REACT_CONTEXT_STOP:
case ReactMarker::JS_BUNDLE_STRING_CONVERT_START:
case ReactMarker::JS_BUNDLE_STRING_CONVERT_STOP:
case ReactMarker::REGISTER_JS_SEGMENT_START:
case ReactMarker::REGISTER_JS_SEGMENT_STOP:
break;
}
}
static void registerPerformanceLoggerHooks(RCTPerformanceLogger *performanceLogger)
{
std::unique_lock lock(ReactMarker::logTaggedMarkerImplMutex);
__weak RCTPerformanceLogger *weakPerformanceLogger = performanceLogger;
ReactMarker::LogTaggedMarker newMarker = [weakPerformanceLogger](
const ReactMarker::ReactMarkerId markerId, const char *tag) {
mapReactMarkerToPerformanceLogger(markerId, weakPerformanceLogger, tag);
};
ReactMarker::logTaggedMarkerImpl = newMarker;
}
@interface RCTCxxBridge () <RCTModuleDataCallInvokerProvider>
@property (nonatomic, weak, readonly) RCTBridge *parentBridge;
@property (nonatomic, assign, readonly) BOOL moduleSetupComplete;
- (instancetype)initWithParentBridge:(RCTBridge *)bridge;
- (void)batchDidComplete;
@end
struct RCTInstanceCallback : public InstanceCallback {
__weak RCTCxxBridge *bridge_;
RCTInstanceCallback(RCTCxxBridge *bridge) : bridge_(bridge){};
void onBatchComplete() override
{
[bridge_ batchDidComplete];
}
};
@interface RCTBridgeDisplayLinkModuleHolder : NSObject <RCTDisplayLinkModuleHolder>
- (instancetype)initWithModuleData:(RCTModuleData *)moduleData;
@end
@implementation RCTBridgeDisplayLinkModuleHolder {
RCTModuleData *_moduleData;
}
- (instancetype)initWithModuleData:(RCTModuleData *)moduleData
{
_moduleData = moduleData;
return self;
}
- (id<RCTBridgeModule>)instance
{
return _moduleData.instance;
}
- (Class)moduleClass
{
return _moduleData.moduleClass;
}
- (dispatch_queue_t)methodQueue
{
return _moduleData.methodQueue;
}
@end
@implementation RCTCxxBridge {
BOOL _didInvalidate;
std::atomic<BOOL> _moduleRegistryCreated;
NSMutableArray<RCTPendingCall> *_pendingCalls;
std::atomic<NSInteger> _pendingCount;
// Native modules
NSMutableDictionary<NSString *, RCTModuleData *> *_moduleDataByName;
NSMutableArray<RCTModuleData *> *_moduleDataByID;
NSMutableArray<Class> *_moduleClassesByID;
NSUInteger _modulesInitializedOnMainQueue;
RCTDisplayLink *_displayLink;
// JS thread management
NSThread *_jsThread;
std::shared_ptr<RCTMessageThread> _jsMessageThread;
std::mutex _moduleRegistryLock;
// This is uniquely owned, but weak_ptr is used.
std::shared_ptr<Instance> _reactInstance;
// Necessary for searching in TurboModules in TurboModuleManager
id<RCTTurboModuleRegistry> _turboModuleRegistry;
RCTModuleRegistry *_objCModuleRegistry;
RCTViewRegistry *_viewRegistry_DEPRECATED;
RCTBundleManager *_bundleManager;
RCTCallableJSModules *_callableJSModules;
std::atomic<BOOL> _loading;
std::atomic<BOOL> _valid;
}
@synthesize bridgeDescription = _bridgeDescription;
@synthesize performanceLogger = _performanceLogger;
- (BOOL)isLoading
{
return _loading;
}
- (void)setLoading:(BOOL)newValue
{
_loading = newValue;
}
- (BOOL)isValid
{
return _valid;
}
- (void)setValid:(BOOL)newValue
{
_valid = newValue;
}
- (RCTModuleRegistry *)moduleRegistry
{
return _objCModuleRegistry;
}
- (void)setRCTTurboModuleRegistry:(id<RCTTurboModuleRegistry>)turboModuleRegistry
{
_turboModuleRegistry = turboModuleRegistry;
[_objCModuleRegistry setTurboModuleRegistry:_turboModuleRegistry];
}
- (RCTBridgeModuleDecorator *)bridgeModuleDecorator
{
return [[RCTBridgeModuleDecorator alloc] initWithViewRegistry:_viewRegistry_DEPRECATED
moduleRegistry:_objCModuleRegistry
bundleManager:_bundleManager
callableJSModules:_callableJSModules];
}
- (std::shared_ptr<MessageQueueThread>)jsMessageThread
{
return _jsMessageThread;
}
- (BOOL)isInspectable
{
return _reactInstance ? _reactInstance->isInspectable() : NO;
}
- (instancetype)initWithParentBridge:(RCTBridge *)bridge
{
RCTAssertParam(bridge);
if ((self = [super initWithDelegate:bridge.delegate
bundleURL:bridge.bundleURL
moduleProvider:bridge.moduleProvider
launchOptions:bridge.launchOptions])) {
_parentBridge = bridge;
_performanceLogger = [bridge performanceLogger];
registerPerformanceLoggerHooks(_performanceLogger);
/**
* Set Initial State
*/
_valid = YES;
_loading = YES;
_moduleRegistryCreated = NO;
_pendingCalls = [NSMutableArray new];
_displayLink = [RCTDisplayLink new];
_moduleDataByName = [NSMutableDictionary new];
_moduleClassesByID = [NSMutableArray new];
_moduleDataByID = [NSMutableArray new];
_objCModuleRegistry = [RCTModuleRegistry new];
[_objCModuleRegistry setBridge:self];
_bundleManager = [RCTBundleManager new];
[_bundleManager setBridge:self];
_viewRegistry_DEPRECATED = [RCTViewRegistry new];
[_viewRegistry_DEPRECATED setBridge:self];
_callableJSModules = [RCTCallableJSModules new];
[_callableJSModules setBridge:self];
[RCTBridge setCurrentBridge:self];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(handleMemoryWarning)
name:UIApplicationDidReceiveMemoryWarningNotification
object:nil];
RCTLogSetBridgeModuleRegistry(_objCModuleRegistry);
RCTLogSetBridgeCallableJSModules(_callableJSModules);
}
return self;
}
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
}
+ (void)runRunLoop
{
@autoreleasepool {
RCT_PROFILE_BEGIN_EVENT(RCTProfileTagAlways, @"-[RCTCxxBridge runJSRunLoop] setup", nil);
// copy thread name to pthread name
pthread_setname_np([NSThread currentThread].name.UTF8String);
// Set up a dummy runloop source to avoid spinning
CFRunLoopSourceContext noSpinCtx = {0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL};
CFRunLoopSourceRef noSpinSource = CFRunLoopSourceCreate(NULL, 0, &noSpinCtx);
CFRunLoopAddSource(CFRunLoopGetCurrent(), noSpinSource, kCFRunLoopDefaultMode);
CFRelease(noSpinSource);
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
// run the run loop
while (kCFRunLoopRunStopped !=
CFRunLoopRunInMode(
kCFRunLoopDefaultMode, ((NSDate *)[NSDate distantFuture]).timeIntervalSinceReferenceDate, NO)) {
RCTAssert(NO, @"not reached assertion"); // runloop spun. that's bad.
}
}
}
- (void)_tryAndHandleError:(dispatch_block_t)block
{
NSError *error = tryAndReturnError(block);
if (error) {
[self handleError:error];
}
}
- (void)handleMemoryWarning
{
// We only want to run garbage collector when the loading is finished
// and the instance is valid.
if (!_valid || _loading) {
return;
}
// We need to hold a local retaining pointer to react instance
// in case if some other tread resets it.
auto reactInstance = _reactInstance;
if (reactInstance) {
// Memory Pressure Unloading Level 15 represents TRIM_MEMORY_RUNNING_CRITICAL.
int unloadLevel = 15;
reactInstance->handleMemoryPressure(unloadLevel);
}
}
/**
* Ensure block is run on the JS thread. If we're already on the JS thread, the block will execute synchronously.
* If we're not on the JS thread, the block is dispatched to that thread. Any errors encountered while executing
* the block will go through handleError:
*/
- (void)ensureOnJavaScriptThread:(dispatch_block_t)block
{
RCTAssert(_jsThread, @"This method must not be called before the JS thread is created");
// This does not use _jsMessageThread because it may be called early before the runloop reference is captured
// and _jsMessageThread is valid. _jsMessageThread also doesn't allow us to shortcut the dispatch if we're
// already on the correct thread.
if ([NSThread currentThread] == _jsThread) {
[self _tryAndHandleError:block];
} else {
[self performSelector:@selector(_tryAndHandleError:) onThread:_jsThread withObject:block waitUntilDone:NO];
}
}
- (void)start
{
RCT_PROFILE_BEGIN_EVENT(RCTProfileTagAlways, @"-[RCTCxxBridge start]", nil);
[[NSNotificationCenter defaultCenter] postNotificationName:RCTJavaScriptWillStartLoadingNotification
object:_parentBridge
userInfo:@{@"bridge" : self}];
// Set up the JS thread early
_jsThread = [[NSThread alloc] initWithTarget:[self class] selector:@selector(runRunLoop) object:nil];
_jsThread.name = RCTJSThreadName;
_jsThread.qualityOfService = NSOperationQualityOfServiceUserInteractive;
#if RCT_DEBUG
_jsThread.stackSize *= 2;
#endif
[_jsThread start];
dispatch_group_t prepareBridge = dispatch_group_create();
[_performanceLogger markStartForTag:RCTPLNativeModuleInit];
[self registerExtraModules];
// Initialize all native modules that cannot be loaded lazily
(void)[self _initializeModules:RCTGetModuleClasses() withDispatchGroup:prepareBridge lazilyDiscovered:NO];
[_performanceLogger markStopForTag:RCTPLNativeModuleInit];
// This doesn't really do anything. The real work happens in initializeBridge.
_reactInstance.reset(new Instance);
__weak RCTCxxBridge *weakSelf = self;
// Prepare executor factory (shared_ptr for copy into block)
std::shared_ptr<JSExecutorFactory> executorFactory;
if (!self.executorClass) {
if ([self.delegate conformsToProtocol:@protocol(RCTCxxBridgeDelegate)]) {
id<RCTCxxBridgeDelegate> cxxDelegate = (id<RCTCxxBridgeDelegate>)self.delegate;
executorFactory = [cxxDelegate jsExecutorFactoryForBridge:self];
}
if (!executorFactory) {
auto installBindings = RCTJSIExecutorRuntimeInstaller(nullptr);
#if !defined(USE_HERMES) || USE_HERMES == 1
executorFactory = std::make_shared<HermesExecutorFactory>(installBindings);
#endif
}
} else {
id<RCTJavaScriptExecutor> objcExecutor = [self moduleForClass:self.executorClass];
executorFactory.reset(new RCTObjcExecutorFactory(objcExecutor, ^(NSError *error) {
if (error) {
[weakSelf handleError:error];
}
}));
}
// Grab the inspector target from the parent bridge here, on the main queue, to avoid inadvertently
// moving ownership of the parent bridge to the JS thread, which would violate expectations around
// the timing and thread affinity of RCTBridge's destruction. This could technically be a dangling
// pointer into a member of RCTBridge! But we only use it while _reactInstance exists, meaning we
// haven't been invalidated, and therefore RCTBridge hasn't been deallocated yet.
RCTAssertMainQueue();
facebook::react::jsinspector_modern::HostTarget *parentInspectorTarget = _parentBridge.inspectorTarget;
// Dispatch the instance initialization as soon as the initial module metadata has
// been collected (see initModules)
dispatch_group_enter(prepareBridge);
[self ensureOnJavaScriptThread:^{
[weakSelf _initializeBridge:executorFactory parentInspectorTarget:parentInspectorTarget];
dispatch_group_leave(prepareBridge);
}];
// Load the source asynchronously, then store it for later execution.
dispatch_group_enter(prepareBridge);
__block NSData *sourceCode;
__block NSURL *sourceURL = self.bundleURL;
#if RCT_DEV_MENU && __has_include(<React/RCTDevLoadingViewProtocol.h>)
{
id<RCTDevLoadingViewProtocol> loadingView = [self moduleForName:@"DevLoadingView" lazilyLoadIfNecessary:YES];
[loadingView showWithURL:self.bundleURL];
}
#endif
[self
loadSource:^(NSError *error, RCTSource *source) {
if (error) {
[weakSelf handleError:error];
}
sourceCode = source.data;
if (source.url) {
sourceURL = source.url;
}
dispatch_group_leave(prepareBridge);
}
onProgress:^(RCTLoadingProgress *progressData) {
#if RCT_DEV_MENU && __has_include(<React/RCTDevLoadingViewProtocol.h>)
id<RCTDevLoadingViewProtocol> loadingView = [weakSelf moduleForName:@"DevLoadingView"
lazilyLoadIfNecessary:YES];
[loadingView updateProgress:progressData];
#endif
}];
// Wait for both the modules and source code to have finished loading
dispatch_group_notify(prepareBridge, dispatch_get_global_queue(QOS_CLASS_USER_INTERACTIVE, 0), ^{
RCTCxxBridge *strongSelf = weakSelf;
if (sourceCode && strongSelf.loading) {
[strongSelf executeSourceCode:sourceCode withSourceURL:sourceURL sync:NO];
}
});
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
}
- (void)loadSource:(RCTSourceLoadBlock)_onSourceLoad onProgress:(RCTSourceLoadProgressBlock)onProgress
{
NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
[center postNotificationName:RCTBridgeWillDownloadScriptNotification object:_parentBridge];
[_performanceLogger markStartForTag:RCTPLScriptDownload];
NSUInteger cookie = RCTProfileBeginAsyncEvent(0, @"JavaScript download", nil);
// Suppress a warning if RCTProfileBeginAsyncEvent gets compiled out
(void)cookie;
RCTPerformanceLogger *performanceLogger = _performanceLogger;
RCTSourceLoadBlock onSourceLoad = ^(NSError *error, RCTSource *source) {
RCTProfileEndAsyncEvent(0, @"native", cookie, @"JavaScript download", @"JS async");
[performanceLogger markStopForTag:RCTPLScriptDownload];
[performanceLogger setValue:source.length forTag:RCTPLBundleSize];
NSDictionary *userInfo = @{
RCTBridgeDidDownloadScriptNotificationSourceKey : source ?: [NSNull null],
RCTBridgeDidDownloadScriptNotificationBridgeDescriptionKey : self->_bridgeDescription ?: [NSNull null],
};
[center postNotificationName:RCTBridgeDidDownloadScriptNotification object:self->_parentBridge userInfo:userInfo];
_onSourceLoad(error, source);
};
if ([self.delegate respondsToSelector:@selector(loadSourceForBridge:onProgress:onComplete:)]) {
[self.delegate loadSourceForBridge:_parentBridge onProgress:onProgress onComplete:onSourceLoad];
} else if ([self.delegate respondsToSelector:@selector(loadSourceForBridge:withBlock:)]) {
[self.delegate loadSourceForBridge:_parentBridge withBlock:onSourceLoad];
} else if (!self.bundleURL) {
NSError *error = RCTErrorWithMessage(
@"No bundle URL present.\n\nMake sure you're running a packager "
"server or have included a .jsbundle file in your application bundle.");
onSourceLoad(error, nil);
} else {
__weak RCTCxxBridge *weakSelf = self;
[RCTJavaScriptLoader loadBundleAtURL:self.bundleURL
onProgress:onProgress
onComplete:^(NSError *error, RCTSource *source) {
if (error) {
[weakSelf handleError:error];
return;
}
onSourceLoad(error, source);
}];
}
}
- (NSArray<Class> *)moduleClasses
{
if (RCT_DEBUG && _valid && _moduleClassesByID == nil) {
RCTLogError(
@"Bridge modules have not yet been initialized. You may be "
"trying to access a module too early in the startup procedure.");
}
return _moduleClassesByID;
}
/**
* Used by RCTUIManager
*/
- (RCTModuleData *)moduleDataForName:(NSString *)moduleName
{
return _moduleDataByName[moduleName];
}
- (id)moduleForName:(NSString *)moduleName
{
return [self moduleForName:moduleName lazilyLoadIfNecessary:NO];
}
- (id)moduleForName:(NSString *)moduleName lazilyLoadIfNecessary:(BOOL)lazilyLoad
{
if (RCTTurboModuleEnabled() && _turboModuleRegistry) {
const char *moduleNameCStr = [moduleName UTF8String];
if (lazilyLoad || [_turboModuleRegistry moduleIsInitialized:moduleNameCStr]) {
id<RCTTurboModule> module = [_turboModuleRegistry moduleForName:moduleNameCStr warnOnLookupFailure:NO];
if (module != nil) {
return module;
}
}
}
if (!lazilyLoad) {
return _moduleDataByName[moduleName].instance;
}
RCTModuleData *moduleData = _moduleDataByName[moduleName];
if (moduleData) {
if (![moduleData isKindOfClass:[RCTModuleData class]]) {
// There is rare race condition where the data stored in the dictionary
// may have been deallocated, which means the module instance is no longer
// usable.
return nil;
}
return moduleData.instance;
}
// Module may not be loaded yet, so attempt to force load it here.
// Do this only if the bridge is still valid.
if (_didInvalidate) {
return nil;
}
const BOOL result = [self.delegate respondsToSelector:@selector(bridge:didNotFindModule:)] &&
[self.delegate bridge:self didNotFindModule:moduleName];
if (result) {
// Try again.
moduleData = _moduleDataByName[moduleName];
#if RCT_DEV
// If the `_moduleDataByName` is nil, it must have been cleared by the reload.
} else if (_moduleDataByName != nil) {
RCTLogError(@"Unable to find module for %@", moduleName);
}
#else
} else {
RCTLogError(@"Unable to find module for %@", moduleName);
}
#endif
return moduleData.instance;
}
- (BOOL)moduleIsInitialized:(Class)moduleClass
{
NSString *moduleName = RCTBridgeModuleNameForClass(moduleClass);
if (_moduleDataByName[moduleName].hasInstance) {
return YES;
}
if (_turboModuleRegistry) {
return [_turboModuleRegistry moduleIsInitialized:[moduleName UTF8String]];
}
return NO;
}
- (id)moduleForClass:(Class)moduleClass
{
return [self moduleForName:RCTBridgeModuleNameForClass(moduleClass) lazilyLoadIfNecessary:YES];
}
- (std::shared_ptr<ModuleRegistry>)_buildModuleRegistryUnlocked
{
if (!self.valid) {
return {};
}
[_performanceLogger markStartForTag:RCTPLNativeModulePrepareConfig];
RCT_PROFILE_BEGIN_EVENT(RCTProfileTagAlways, @"-[RCTCxxBridge buildModuleRegistry]", nil);
__weak __typeof(self) weakSelf = self;
ModuleRegistry::ModuleNotFoundCallback moduleNotFoundCallback = ^bool(const std::string &name) {
__strong __typeof(weakSelf) strongSelf = weakSelf;
return [strongSelf.delegate respondsToSelector:@selector(bridge:didNotFindModule:)] &&
[strongSelf.delegate bridge:strongSelf didNotFindModule:@(name.c_str())];
};
auto registry = std::make_shared<ModuleRegistry>(
createNativeModules(_moduleDataByID, self, _reactInstance), moduleNotFoundCallback);
[_performanceLogger markStopForTag:RCTPLNativeModulePrepareConfig];
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
return registry;
}
- (void)_initializeBridge:(std::shared_ptr<JSExecutorFactory>)executorFactory
parentInspectorTarget:(facebook::react::jsinspector_modern::HostTarget *)parentInspectorTarget
{
if (!self.valid) {
return;
}
__weak RCTCxxBridge *weakSelf = self;
_jsMessageThread = std::make_shared<RCTMessageThread>([NSRunLoop currentRunLoop], ^(NSError *error) {
if (error) {
[weakSelf handleError:error];
}
});
RCT_PROFILE_BEGIN_EVENT(RCTProfileTagAlways, @"-[RCTCxxBridge initializeBridge:]", nil);
// This can only be false if the bridge was invalidated before startup completed
if (_reactInstance) {
#if RCT_DEV
executorFactory = std::make_shared<GetDescAdapter>(self, executorFactory);
#endif
[self _initializeBridgeLocked:executorFactory parentInspectorTarget:parentInspectorTarget];
#if RCT_PROFILE
if (RCTProfileIsProfiling()) {
_reactInstance->setGlobalVariable("__RCTProfileIsProfiling", std::make_unique<JSBigStdString>("true"));
}
#endif
}
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
}
- (void)_initializeBridgeLocked:(std::shared_ptr<JSExecutorFactory>)executorFactory
parentInspectorTarget:(facebook::react::jsinspector_modern::HostTarget *)parentInspectorTarget
{
std::lock_guard<std::mutex> guard(_moduleRegistryLock);
// This is async, but any calls into JS are blocked by the m_syncReady CV in Instance
_reactInstance->initializeBridge(
std::make_unique<RCTInstanceCallback>(self),
executorFactory,
_jsMessageThread,
[self _buildModuleRegistryUnlocked],
parentInspectorTarget);
_moduleRegistryCreated = YES;
}
- (void)updateModuleWithInstance:(id<RCTBridgeModule>)instance
{
NSString *const moduleName = RCTBridgeModuleNameForClass([instance class]);
if (moduleName) {
RCTModuleData *const moduleData = _moduleDataByName[moduleName];
if (moduleData) {
moduleData.instance = instance;
}
}
}
- (NSArray<RCTModuleData *> *)registerModulesForClasses:(NSArray<Class> *)moduleClasses
{
return [self _registerModulesForClasses:moduleClasses lazilyDiscovered:NO];
}
- (NSArray<RCTModuleData *> *)_registerModulesForClasses:(NSArray<Class> *)moduleClasses
lazilyDiscovered:(BOOL)lazilyDiscovered
{
RCT_PROFILE_BEGIN_EVENT(
RCTProfileTagAlways, @"-[RCTCxxBridge initModulesWithDispatchGroup:] autoexported moduleData", nil);
NSArray *moduleClassesCopy = [moduleClasses copy];
NSMutableArray<RCTModuleData *> *moduleDataByID = [NSMutableArray arrayWithCapacity:moduleClassesCopy.count];
for (Class moduleClass in moduleClassesCopy) {
if (RCTTurboModuleEnabled() && [moduleClass conformsToProtocol:@protocol(RCTTurboModule)]) {
continue;
}
NSString *moduleName = RCTBridgeModuleNameForClass(moduleClass);
// Check for module name collisions
RCTModuleData *moduleData = _moduleDataByName[moduleName];
if (moduleData) {
if (moduleData.hasInstance || lazilyDiscovered) {
// Existing module was preregistered, so it takes precedence
continue;
} else if ([moduleClass new] == nil) {
// The new module returned nil from init, so use the old module
continue;
} else if ([moduleData.moduleClass new] != nil) {
// Both modules were non-nil, so it's unclear which should take precedence
RCTLogWarn(
@"Attempted to register RCTBridgeModule class %@ for the "
"name '%@', but name was already registered by class %@",
moduleClass,
moduleName,
moduleData.moduleClass);
}
}
// Instantiate moduleData
// TODO #13258411: can we defer this until config generation?
int32_t moduleDataId = getUniqueId();
BridgeNativeModulePerfLogger::moduleDataCreateStart([moduleName UTF8String], moduleDataId);
moduleData = [[RCTModuleData alloc] initWithModuleClass:moduleClass
bridge:self
moduleRegistry:_objCModuleRegistry
viewRegistry_DEPRECATED:_viewRegistry_DEPRECATED
bundleManager:_bundleManager
callableJSModules:_callableJSModules];
moduleData.callInvokerProvider = self;
BridgeNativeModulePerfLogger::moduleDataCreateEnd([moduleName UTF8String], moduleDataId);
_moduleDataByName[moduleName] = moduleData;
[_moduleClassesByID addObject:moduleClass];
[moduleDataByID addObject:moduleData];
}
[_moduleDataByID addObjectsFromArray:moduleDataByID];
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
return moduleDataByID;
}
- (void)registerExtraModules
{
RCT_PROFILE_BEGIN_EVENT(RCTProfileTagAlways, @"-[RCTCxxBridge initModulesWithDispatchGroup:] extraModules", nil);
NSArray<id<RCTBridgeModule>> *appExtraModules = nil;
if ([self.delegate respondsToSelector:@selector(extraModulesForBridge:)]) {
appExtraModules = [self.delegate extraModulesForBridge:_parentBridge];
} else if (self.moduleProvider) {
appExtraModules = self.moduleProvider();
}
NSMutableArray<id<RCTBridgeModule>> *extraModules = [NSMutableArray new];
// Prevent TurboModules from appearing the NativeModule system
for (id<RCTBridgeModule> module in appExtraModules) {
if (!(RCTTurboModuleEnabled() && [module conformsToProtocol:@protocol(RCTTurboModule)])) {
[extraModules addObject:module];
}
}
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
RCT_PROFILE_BEGIN_EVENT(
RCTProfileTagAlways, @"-[RCTCxxBridge initModulesWithDispatchGroup:] preinitialized moduleData", nil);
// Set up moduleData for pre-initialized module instances
for (id<RCTBridgeModule> module in extraModules) {
Class moduleClass = [module class];
NSString *moduleName = RCTBridgeModuleNameForClass(moduleClass);
if (RCT_DEBUG) {
// Check for name collisions between preregistered modules
RCTModuleData *moduleData = _moduleDataByName[moduleName];
if (moduleData) {
RCTLogError(
@"Attempted to register RCTBridgeModule class %@ for the "
"name '%@', but name was already registered by class %@",
moduleClass,
moduleName,
moduleData.moduleClass);
continue;
}
}
if (RCTTurboModuleEnabled() && [module conformsToProtocol:@protocol(RCTTurboModule)]) {
#if RCT_DEBUG
// TODO: don't ask for extra module for when TurboModule is enabled.
RCTLogError(
@"NativeModule '%@' was marked as TurboModule, but provided as an extra NativeModule "
"by the class '%@', ignoring.",
moduleName,
moduleClass);
#endif
continue;
}
// Instantiate moduleData container
int32_t moduleDataId = getUniqueId();
BridgeNativeModulePerfLogger::moduleDataCreateStart([moduleName UTF8String], moduleDataId);
RCTModuleData *moduleData = [[RCTModuleData alloc] initWithModuleInstance:module
bridge:self
moduleRegistry:_objCModuleRegistry
viewRegistry_DEPRECATED:_viewRegistry_DEPRECATED
bundleManager:_bundleManager
callableJSModules:_callableJSModules];
BridgeNativeModulePerfLogger::moduleDataCreateEnd([moduleName UTF8String], moduleDataId);
_moduleDataByName[moduleName] = moduleData;
[_moduleClassesByID addObject:moduleClass];
[_moduleDataByID addObject:moduleData];
}
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
}
- (NSArray<RCTModuleData *> *)_initializeModules:(NSArray<Class> *)modules
withDispatchGroup:(dispatch_group_t)dispatchGroup
lazilyDiscovered:(BOOL)lazilyDiscovered
{
// Set up moduleData for automatically-exported modules
NSArray<RCTModuleData *> *moduleDataById = [self _registerModulesForClasses:modules
lazilyDiscovered:lazilyDiscovered];
if (lazilyDiscovered) {
#if RCT_DEBUG
// Lazily discovered modules do not require instantiation here,
// as they are not allowed to have pre-instantiated instance
// and must not require the main queue.
for (RCTModuleData *moduleData in moduleDataById) {
RCTAssert(
!(moduleData.requiresMainQueueSetup || moduleData.hasInstance),
@"Module \'%@\' requires initialization on the Main Queue or has pre-instantiated, which is not supported for the lazily discovered modules.",
moduleData.name);
}
#endif
} else {
RCT_PROFILE_BEGIN_EVENT(
RCTProfileTagAlways, @"-[RCTCxxBridge initModulesWithDispatchGroup:] moduleData.hasInstance", nil);
// Dispatch module init onto main thread for those modules that require it
// For non-lazily discovered modules we run through the entire set of modules
// that we have, otherwise some modules coming from the delegate
// or module provider block, will not be properly instantiated.
for (RCTModuleData *moduleData in _moduleDataByID) {
if (moduleData.hasInstance && (!moduleData.requiresMainQueueSetup || RCTIsMainQueue())) {
// Modules that were pre-initialized should ideally be set up before
// bridge init has finished, otherwise the caller may try to access the
// module directly rather than via `[bridge moduleForClass:]`, which won't
// trigger the lazy initialization process. If the module cannot safely be
// set up on the current thread, it will instead be async dispatched
// to the main thread to be set up in _prepareModulesWithDispatchGroup:.
(void)[moduleData instance];
}
}
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
// From this point on, RCTDidInitializeModuleNotification notifications will
// be sent the first time a module is accessed.
_moduleSetupComplete = YES;
[self _prepareModulesWithDispatchGroup:dispatchGroup];
}
#if RCT_PROFILE
if (RCTProfileIsProfiling()) {
// Depends on moduleDataByID being loaded
RCTProfileHookModules(self);
}
#endif
return moduleDataById;
}
- (void)registerAdditionalModuleClasses:(NSArray<Class> *)modules
{
std::lock_guard<std::mutex> guard(_moduleRegistryLock);
if (_moduleRegistryCreated) {
NSArray<RCTModuleData *> *newModules = [self _initializeModules:modules
withDispatchGroup:NULL
lazilyDiscovered:YES];
assert(_reactInstance); // at this point you must have reactInstance as you already called
// reactInstance->initializeBridge
_reactInstance->getModuleRegistry().registerModules(createNativeModules(newModules, self, _reactInstance));
} else {
[self registerModulesForClasses:modules];
}
}
- (void)_prepareModulesWithDispatchGroup:(dispatch_group_t)dispatchGroup
{
RCT_PROFILE_BEGIN_EVENT(0, @"-[RCTCxxBridge _prepareModulesWithDispatchGroup]", nil);
BOOL initializeImmediately = NO;
if (dispatchGroup == NULL) {
// If no dispatchGroup is passed in, we must prepare everything immediately.
// We better be on the right thread too.
RCTAssertMainQueue();
initializeImmediately = YES;
}
// Set up modules that require main thread init or constants export
[_performanceLogger setValue:0 forTag:RCTPLNativeModuleMainThread];
for (RCTModuleData *moduleData in _moduleDataByID) {
if (moduleData.requiresMainQueueSetup) {
// Modules that need to be set up on the main thread cannot be initialized
// lazily when required without doing a dispatch_sync to the main thread,
// which can result in deadlock. To avoid this, we initialize all of these
// modules on the main thread in parallel with loading the JS code, so
// they will already be available before they are ever required.
dispatch_block_t block = ^{
if (self.valid && ![moduleData.moduleClass isSubclassOfClass:[RCTCxxModule class]]) {
[self->_performanceLogger appendStartForTag:RCTPLNativeModuleMainThread];
(void)[moduleData instance];
[moduleData gatherConstants];
[self->_performanceLogger appendStopForTag:RCTPLNativeModuleMainThread];
}
};
if (initializeImmediately && RCTIsMainQueue()) {
block();
} else {
// We've already checked that dispatchGroup is non-null, but this satisfies the
// Xcode analyzer
if (dispatchGroup) {
dispatch_group_async(dispatchGroup, dispatch_get_main_queue(), block);
}
}
_modulesInitializedOnMainQueue++;
}
}
[_performanceLogger setValue:_modulesInitializedOnMainQueue forTag:RCTPLNativeModuleMainThreadUsesCount];
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
}
- (void)registerModuleForFrameUpdates:(id<RCTBridgeModule>)module withModuleData:(RCTModuleData *)moduleData
{
id<RCTDisplayLinkModuleHolder> moduleHolder =
[[RCTBridgeDisplayLinkModuleHolder alloc] initWithModuleData:moduleData];
[_displayLink registerModuleForFrameUpdates:module withModuleHolder:moduleHolder];
}
- (void)executeSourceCode:(NSData *)sourceCode withSourceURL:(NSURL *)url sync:(BOOL)sync
{
// This will get called from whatever thread was actually executing JS.
dispatch_block_t completion = ^{
// Log start up metrics early before processing any other js calls
[self logStartupFinish];
// Flush pending calls immediately so we preserve ordering
[self _flushPendingCalls];
// Perform the state update and notification on the main thread, so we can't run into
// timing issues with RCTRootView
dispatch_async(dispatch_get_main_queue(), ^{
[[NSNotificationCenter defaultCenter] postNotificationName:RCTJavaScriptDidLoadNotification
object:self->_parentBridge
userInfo:@{@"bridge" : self}];
// Starting the display link is not critical to startup, so do it last
[self ensureOnJavaScriptThread:^{
// Register the display link to start sending js calls after everything is setup
[self->_displayLink addToRunLoop:[NSRunLoop currentRunLoop]];
}];
});
};
if (sync) {
[self executeApplicationScriptSync:sourceCode url:url];
completion();
} else {
[self enqueueApplicationScript:sourceCode url:url onComplete:completion];
}
// Use the original request URL here - HMRClient uses this to derive the /hot URL and entry point.
[self.devSettings setupHMRClientWithBundleURL:self.bundleURL];
}
- (void)handleError:(NSError *)error
{
// This is generally called when the infrastructure throws an
// exception while calling JS. Most product exceptions will not go
// through this method, but through RCTExceptionManager.
// There are three possible states:
// 1. initializing == _valid && _loading
// 2. initializing/loading finished (success or failure) == _valid && !_loading
// 3. invalidated == !_valid && !_loading
// !_valid && _loading can't happen.
// In state 1: on main queue, move to state 2, reset the bridge, and RCTFatal.
// In state 2: go directly to RCTFatal. Do not enqueue, do not collect $200.
// In state 3: do nothing.
if (self->_valid && !self->_loading) {
if ([error userInfo][RCTJSRawStackTraceKey]) {
RCTRedBox *redBox = RCTRedBoxGetEnabled() ? [self.moduleRegistry moduleForName:"RedBox"] : nil;
[redBox showErrorMessage:[error localizedDescription] withRawStack:[error userInfo][RCTJSRawStackTraceKey]];
}
RCTFatal(error);
// RN will stop, but let the rest of the app keep going.
return;
}
if (!_valid || !_loading) {
return;
}
// Hack: once the bridge is invalidated below, it won't initialize any new native
// modules. Initialize the redbox module now so we can still report this error.
RCTRedBox *redBox = RCTRedBoxGetEnabled() ? [self.moduleRegistry moduleForName:"RedBox"] : nil;
_loading = NO;
_valid = NO;
_moduleRegistryCreated = NO;
dispatch_async(dispatch_get_main_queue(), ^{
if (self->_jsMessageThread) {
// Make sure initializeBridge completed
self->_jsMessageThread->runOnQueueSync([] {});
}
self->_reactInstance.reset();
self->_jsMessageThread.reset();
[[NSNotificationCenter defaultCenter] postNotificationName:RCTJavaScriptDidFailToLoadNotification
object:self->_parentBridge
userInfo:@{@"bridge" : self, @"error" : error}];
if ([error userInfo][RCTJSRawStackTraceKey]) {
[redBox showErrorMessage:[error localizedDescription] withRawStack:[error userInfo][RCTJSRawStackTraceKey]];
}
RCTFatal(error);
});
}
RCT_NOT_IMPLEMENTED(-(instancetype)initWithDelegate
: (__unused id<RCTBridgeDelegate>)delegate bundleURL
: (__unused NSURL *)bundleURL moduleProvider
: (__unused RCTBridgeModuleListProvider)block launchOptions
: (__unused NSDictionary *)launchOptions)
RCT_NOT_IMPLEMENTED(-(instancetype)initWithBundleURL
: (__unused NSURL *)bundleURL moduleProvider
: (__unused RCTBridgeModuleListProvider)block launchOptions
: (__unused NSDictionary *)launchOptions)
/**
* Prevent super from calling setUp (that'd create another batchedBridge)
*/
- (void)setUp
{
}
- (Class)executorClass
{
return _parentBridge.executorClass;
}
- (void)setExecutorClass:(Class)executorClass
{
RCTAssertMainQueue();
_parentBridge.executorClass = executorClass;
}
- (NSURL *)bundleURL
{
return _parentBridge.bundleURL;
}
- (void)setBundleURL:(NSURL *)bundleURL
{
_parentBridge.bundleURL = bundleURL;
}
- (id<RCTBridgeDelegate>)delegate
{
return _parentBridge.delegate;
}
- (void)dispatchBlock:(dispatch_block_t)block queue:(dispatch_queue_t)queue
{
if (queue == RCTJSThread) {
[self ensureOnJavaScriptThread:block];
} else if (queue) {
dispatch_async(queue, block);
}
}
#pragma mark - RCTInvalidating
- (void)invalidate
{
if (_didInvalidate) {
return;
}
RCTAssertMainQueue();
RCTLogInfo(@"Invalidating %@ (parent: %@, executor: %@)", self, _parentBridge, [self executorClass]);
if (self->_reactInstance) {
// Do this synchronously on the main thread to fulfil unregisterFromInspector's
// requirements.
self->_reactInstance->unregisterFromInspector();
}
_loading = NO;
_valid = NO;
_didInvalidate = YES;
_moduleRegistryCreated = NO;
if ([RCTBridge currentBridge] == self) {
[RCTBridge setCurrentBridge:nil];
}
// Stop JS instance and message thread
[self ensureOnJavaScriptThread:^{
[self->_displayLink invalidate];
self->_displayLink = nil;
if (RCTProfileIsProfiling()) {
RCTProfileUnhookModules(self);
}
// Invalidate modules
[[NSNotificationCenter defaultCenter] postNotificationName:RCTBridgeWillInvalidateModulesNotification
object:self->_parentBridge
userInfo:@{@"bridge" : self}];
// We're on the JS thread (which we'll be suspending soon), so no new calls will be made to native modules after
// this completes. We must ensure all previous calls were dispatched before deallocating the instance (and module
// wrappers) or we may have invalid pointers still in flight.
dispatch_group_t moduleInvalidation = dispatch_group_create();
for (RCTModuleData *moduleData in self->_moduleDataByID) {
// Be careful when grabbing an instance here, we don't want to instantiate
// any modules just to invalidate them.
if (![moduleData hasInstance]) {
continue;
}
if ([moduleData.instance respondsToSelector:@selector(invalidate)]) {
dispatch_group_enter(moduleInvalidation);
[self
dispatchBlock:^{
[(id<RCTInvalidating>)moduleData.instance invalidate];
dispatch_group_leave(moduleInvalidation);
}
queue:moduleData.methodQueue];
}
[moduleData invalidate];
}
if (dispatch_group_wait(moduleInvalidation, dispatch_time(DISPATCH_TIME_NOW, 10 * NSEC_PER_SEC))) {
RCTLogError(@"Timed out waiting for modules to be invalidated");
}
[[NSNotificationCenter defaultCenter] postNotificationName:RCTBridgeDidInvalidateModulesNotification
object:self->_parentBridge
userInfo:@{@"bridge" : self}];
self->_reactInstance.reset();
self->_jsMessageThread.reset();
self->_moduleDataByName = nil;
self->_moduleDataByID = nil;
self->_moduleClassesByID = nil;
self->_pendingCalls = nil;
[self->_jsThread cancel];
self->_jsThread = nil;
CFRunLoopStop(CFRunLoopGetCurrent());
}];
}
- (void)logMessage:(NSString *)message level:(NSString *)level
{
if (RCT_DEBUG && _valid) {
[self enqueueJSCall:@"RCTLog" method:@"logIfNoNativeHook" args:@[ level, message ] completion:NULL];
}
}
#pragma mark - RCTBridge methods
- (void)_runAfterLoad:(RCTPendingCall)block
{
// Ordering here is tricky. Ideally, the C++ bridge would provide
// functionality to defer calls until after the app is loaded. Until that
// happens, we do this. _pendingCount keeps a count of blocks which have
// been deferred. It is incremented using an atomic barrier call before each
// block is added to the js queue, and decremented using an atomic barrier
// call after the block is executed. If _pendingCount is zero, there is no
// work either in the js queue, or in _pendingCalls, so it is safe to add new
// work to the JS queue directly.
if (self.loading || _pendingCount > 0) {
// From the callers' perspective:
// Phase 1: jsQueueBlocks are added to the queue; _pendingCount is
// incremented for each. If the first block is created after self.loading is
// true, phase 1 will be nothing.
_pendingCount++;
dispatch_block_t jsQueueBlock = ^{
// From the perspective of the JS queue:
if (self.loading) {
// Phase A: jsQueueBlocks are executed. self.loading is true, so they
// are added to _pendingCalls.
[self->_pendingCalls addObject:block];
} else {
// Phase C: More jsQueueBlocks are executed. self.loading is false, so
// each block is executed, adding work to the queue, and _pendingCount is
// decremented.
block();
self->_pendingCount--;
}
};
[self ensureOnJavaScriptThread:jsQueueBlock];
} else {
// Phase 2/Phase D: blocks are executed directly, adding work to the JS queue.
block();
}
}
- (void)logStartupFinish
{
// Log metrics about native requires during the bridge startup.
uint64_t nativeRequiresCount = [_performanceLogger valueForTag:RCTPLRAMNativeRequiresCount];
[_performanceLogger setValue:nativeRequiresCount forTag:RCTPLRAMStartupNativeRequiresCount];
uint64_t nativeRequires = [_performanceLogger valueForTag:RCTPLRAMNativeRequires];
[_performanceLogger setValue:nativeRequires forTag:RCTPLRAMStartupNativeRequires];
[_performanceLogger markStopForTag:RCTPLBridgeStartup];
}
- (void)_flushPendingCalls
{
RCT_PROFILE_BEGIN_EVENT(0, @"Processing pendingCalls", @{@"count" : [@(_pendingCalls.count) stringValue]});
// Phase B: _flushPendingCalls happens. Each block in _pendingCalls is
// executed, adding work to the queue, and _pendingCount is decremented.
// loading is set to NO.
NSArray<RCTPendingCall> *pendingCalls = _pendingCalls;
_pendingCalls = nil;
for (RCTPendingCall call in pendingCalls) {
call();
_pendingCount--;
}
_loading = NO;
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
}
/**
* Public. Can be invoked from any thread.
*/
- (void)enqueueJSCall:(NSString *)module
method:(NSString *)method
args:(NSArray *)args
completion:(dispatch_block_t)completion
{
if (!self.valid) {
return;
}
/**
* AnyThread
*/
RCT_PROFILE_BEGIN_EVENT(RCTProfileTagAlways, @"-[RCTCxxBridge enqueueJSCall:]", nil);
RCTProfileBeginFlowEvent();
__weak __typeof(self) weakSelf = self;
[self _runAfterLoad:^() {
RCTProfileEndFlowEvent();
__strong __typeof(weakSelf) strongSelf = weakSelf;
if (!strongSelf) {
return;
}
if (strongSelf->_reactInstance) {
strongSelf->_reactInstance->callJSFunction(
[module UTF8String], [method UTF8String], convertIdToFollyDynamic(args ?: @[]));
// ensureOnJavaScriptThread may execute immediately, so use jsMessageThread, to make sure
// the block is invoked after callJSFunction
if (completion) {
if (strongSelf->_jsMessageThread) {
strongSelf->_jsMessageThread->runOnQueue(completion);
} else {
RCTLogWarn(@"Can't invoke completion without messageThread");
}
}
}
}];
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
}
/**
* Called by RCTModuleMethod from any thread.
*/
- (void)enqueueCallback:(NSNumber *)cbID args:(NSArray *)args
{
if (!self.valid) {
return;
}
/**
* AnyThread
*/
RCTProfileBeginFlowEvent();
__weak __typeof(self) weakSelf = self;
[self _runAfterLoad:^() {
RCTProfileEndFlowEvent();
__strong __typeof(weakSelf) strongSelf = weakSelf;
if (!strongSelf) {
return;
}
if (strongSelf->_reactInstance) {
strongSelf->_reactInstance->callJSCallback([cbID unsignedLongLongValue], convertIdToFollyDynamic(args ?: @[]));
}
}];
}
/**
* Private hack to support `setTimeout(fn, 0)`
*/
- (void)_immediatelyCallTimer:(NSNumber *)timer
{
if (_reactInstance) {
_reactInstance->callJSFunction(
"JSTimers", "callTimers", folly::dynamic::array(folly::dynamic::array([timer doubleValue])));
}
}
- (void)enqueueApplicationScript:(NSData *)script url:(NSURL *)url onComplete:(dispatch_block_t)onComplete
{
RCT_PROFILE_BEGIN_EVENT(RCTProfileTagAlways, @"-[RCTCxxBridge enqueueApplicationScript]", nil);
[self executeApplicationScript:script url:url async:YES];
RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
// Assumes that onComplete can be called when the next block on the JS thread is scheduled
if (onComplete) {
RCTAssert(_jsMessageThread != nullptr, @"Cannot invoke completion without jsMessageThread");
_jsMessageThread->runOnQueue(onComplete);
}
}
- (void)executeApplicationScriptSync:(NSData *)script url:(NSURL *)url
{
[self executeApplicationScript:script url:url async:NO];
}
- (void)executeApplicationScript:(NSData *)script url:(NSURL *)url async:(BOOL)async
{
[self _tryAndHandleError:^{
NSString *sourceUrlStr = deriveSourceURL(url);
[[NSNotificationCenter defaultCenter] postNotificationName:RCTJavaScriptWillStartExecutingNotification
object:self->_parentBridge
userInfo:@{@"bridge" : self}];
BundleHeader header;
[script getBytes:&header length:sizeof(header)];
ScriptTag scriptType = parseTypeFromHeader(header);
// hold a local reference to reactInstance in case a parallel thread
// resets it between null check and usage
auto reactInstance = self->_reactInstance;
if (scriptType == ScriptTag::RAMBundle) {
[self->_performanceLogger markStartForTag:RCTPLRAMBundleLoad];
auto ramBundle = std::make_unique<JSIndexedRAMBundle>(sourceUrlStr.UTF8String);
std::unique_ptr<const JSBigString> scriptStr = ramBundle->getStartupCode();
[self->_performanceLogger markStopForTag:RCTPLRAMBundleLoad];
[self->_performanceLogger setValue:scriptStr->size() forTag:RCTPLRAMStartupCodeSize];
if (reactInstance) {
auto registry =
RAMBundleRegistry::multipleBundlesRegistry(std::move(ramBundle), JSIndexedRAMBundle::buildFactory());
reactInstance->loadRAMBundle(std::move(registry), std::move(scriptStr), sourceUrlStr.UTF8String, !async);
}
} else if (reactInstance) {
reactInstance->loadScriptFromString(std::make_unique<NSDataBigString>(script), sourceUrlStr.UTF8String, !async);
} else {
std::string methodName = async ? "loadBundle" : "loadBundleSync";
throw std::logic_error("Attempt to call " + methodName + ": on uninitialized bridge");
}
}];
}
- (void)registerSegmentWithId:(NSUInteger)segmentId path:(NSString *)path
{
if (_reactInstance) {
_reactInstance->registerBundle(static_cast<uint32_t>(segmentId), path.UTF8String);
}
}
#pragma mark - Payload Processing
- (void)batchDidComplete
{
// TODO #12592471: batchDidComplete is only used by RCTUIManager,
// can we eliminate this special case?
for (RCTModuleData *moduleData in _moduleDataByID) {
if (moduleData.implementsBatchDidComplete) {
[self
dispatchBlock:^{
[moduleData.instance batchDidComplete];
}
queue:moduleData.methodQueue];
}
}
}
- (void)startProfiling
{
RCTAssertMainQueue();
[self ensureOnJavaScriptThread:^{
#if WITH_FBSYSTRACE
[RCTFBSystrace registerCallbacks];
#endif
RCTProfileInit(self);
[self enqueueJSCall:@"Systrace" method:@"setEnabled" args:@[ @YES ] completion:NULL];
}];
}
- (void)stopProfiling:(void (^)(NSData *))callback
{
RCTAssertMainQueue();
[self ensureOnJavaScriptThread:^{
[self enqueueJSCall:@"Systrace" method:@"setEnabled" args:@[ @NO ] completion:NULL];
RCTProfileEnd(self, ^(NSString *log) {
NSData *logData = [log dataUsingEncoding:NSUTF8StringEncoding];
callback(logData);
#if WITH_FBSYSTRACE
if (![RCTFBSystrace verifyTraceSize:logData.length]) {
RCTLogWarn(
@"Your FBSystrace trace might be truncated, try to bump up the buffer size"
" in RCTFBSystrace.m or capture a shorter trace");
}
[RCTFBSystrace unregisterCallbacks];
#endif
});
}];
}
- (BOOL)isBatchActive
{
return _reactInstance ? _reactInstance->isBatchActive() : NO;
}
- (void *)runtime
{
if (!_reactInstance) {
return nullptr;
}
return _reactInstance->getJavaScriptContext();
}
- (void)invokeAsync:(CallFunc &&)func
{
__block auto retainedFunc = std::move(func);
__weak __typeof(self) weakSelf = self;
[self _runAfterLoad:^{
__strong __typeof(self) strongSelf = weakSelf;
if (std::shared_ptr<CallInvoker> jsInvoker = strongSelf.jsCallInvoker) {
jsInvoker->invokeAsync(std::move(retainedFunc));
}
}];
}
#pragma mark - RCTBridge (RCTTurboModule)
- (std::shared_ptr<CallInvoker>)jsCallInvoker
{
return _reactInstance ? _reactInstance->getJSCallInvoker() : nullptr;
}
- (std::shared_ptr<NativeMethodCallInvoker>)decorateNativeMethodCallInvoker:
(std::shared_ptr<NativeMethodCallInvoker>)nativeInvoker
{
return _reactInstance ? _reactInstance->getDecoratedNativeMethodCallInvoker(nativeInvoker) : nullptr;
}
#pragma mark - RCTModuleDataCallInvokerProvider
- (RCTCallInvoker *)callInvokerForModuleData:(RCTModuleData *)moduleData
{
return [[RCTCallInvoker alloc] initWithCallInvoker:self.jsCallInvoker];
}
@end
#else // RCT_FIT_RM_OLD_RUNTIME
@implementation RCTCxxBridge
@end
#endif // RCT_FIT_RM_OLD_RUNTIME
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