132 lines
4.1 KiB
Plaintext
132 lines
4.1 KiB
Plaintext
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import "RCTCxxUtils.h"
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#import <React/RCTFollyConvert.h>
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#import <React/RCTModuleData.h>
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#import <React/RCTUtils.h>
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#import <cxxreact/CxxNativeModule.h>
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#import <jschelpers/Value.h>
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#import "DispatchMessageQueueThread.h"
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#import "RCTCxxModule.h"
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#import "RCTNativeModule.h"
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namespace facebook {
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namespace react {
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std::vector<std::unique_ptr<NativeModule>> createNativeModules(NSArray<RCTModuleData *> *modules, RCTBridge *bridge, const std::shared_ptr<Instance> &instance)
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{
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std::vector<std::unique_ptr<NativeModule>> nativeModules;
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for (RCTModuleData *moduleData in modules) {
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if ([moduleData.moduleClass isSubclassOfClass:[RCTCxxModule class]]) {
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nativeModules.emplace_back(std::make_unique<CxxNativeModule>(
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instance,
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[moduleData.name UTF8String],
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[moduleData] { return [(RCTCxxModule *)(moduleData.instance) createModule]; },
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std::make_shared<DispatchMessageQueueThread>(moduleData)));
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} else {
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nativeModules.emplace_back(std::make_unique<RCTNativeModule>(bridge, moduleData));
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}
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}
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return nativeModules;
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}
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JSContext *contextForGlobalContextRef(JSGlobalContextRef contextRef)
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{
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static std::mutex s_mutex;
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static NSMapTable *s_contextCache;
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if (!contextRef) {
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return nil;
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}
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// Adding our own lock here, since JSC internal ones are insufficient
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std::lock_guard<std::mutex> lock(s_mutex);
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if (!s_contextCache) {
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NSPointerFunctionsOptions keyOptions = NSPointerFunctionsOpaqueMemory | NSPointerFunctionsOpaquePersonality;
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NSPointerFunctionsOptions valueOptions = NSPointerFunctionsWeakMemory | NSPointerFunctionsObjectPersonality;
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s_contextCache = [[NSMapTable alloc] initWithKeyOptions:keyOptions valueOptions:valueOptions capacity:0];
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}
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JSContext *ctx = [s_contextCache objectForKey:(__bridge id)contextRef];
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if (!ctx) {
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ctx = [JSC_JSContext(contextRef) contextWithJSGlobalContextRef:contextRef];
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[s_contextCache setObject:ctx forKey:(__bridge id)contextRef];
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}
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return ctx;
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}
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static NSError *errorWithException(const std::exception &e)
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{
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NSString *msg = @(e.what());
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NSMutableDictionary *errorInfo = [NSMutableDictionary dictionary];
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const JSException *jsException = dynamic_cast<const JSException*>(&e);
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if (jsException) {
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errorInfo[RCTJSRawStackTraceKey] = @(jsException->getStack().c_str());
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msg = [@"Unhandled JS Exception: " stringByAppendingString:msg];
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}
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NSError *nestedError;
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try {
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std::rethrow_if_nested(e);
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} catch(const std::exception &e) {
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nestedError = errorWithException(e);
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} catch(...) {}
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if (nestedError) {
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msg = [NSString stringWithFormat:@"%@\n\n%@", msg, [nestedError localizedDescription]];
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}
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errorInfo[NSLocalizedDescriptionKey] = msg;
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return [NSError errorWithDomain:RCTErrorDomain code:1 userInfo:errorInfo];
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}
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NSError *tryAndReturnError(const std::function<void()>& func)
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{
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try {
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@try {
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func();
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return nil;
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}
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@catch (NSException *exception) {
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NSString *message =
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[NSString stringWithFormat:@"Exception '%@' was thrown from JS thread", exception];
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return RCTErrorWithMessage(message);
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}
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@catch (id exception) {
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// This will catch any other ObjC exception, but no C++ exceptions
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return RCTErrorWithMessage(@"non-std ObjC Exception");
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}
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} catch (const std::exception &ex) {
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return errorWithException(ex);
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} catch (...) {
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// On a 64-bit platform, this would catch ObjC exceptions, too, but not on
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// 32-bit platforms, so we catch those with id exceptions above.
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return RCTErrorWithMessage(@"non-std C++ exception");
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}
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}
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NSString *deriveSourceURL(NSURL *url)
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{
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NSString *sourceUrl;
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if (url.isFileURL) {
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// Url will contain only path to resource (i.g. file:// will be removed)
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sourceUrl = url.path;
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} else {
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// Url will include protocol (e.g. http://)
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sourceUrl = url.absoluteString;
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}
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return sourceUrl ?: @"";
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}
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} }
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