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d42ccca2e1
Summary: We've simplified a lot of the conditions for eager of the module init so now we can introduce a final switch to allow modules to opt-out (and in the future opt-in if they still require the behaviour). We now require you to be explicit about the intended behaviour and implement the `+ (BOOL)requiresMainQueueSetup` method on your module. When you return YES from this method, it tells the bridge the module needs to be created on the main thread (and to avoid deadlocks, we do so eagerly during bridge startup). When you return NO, the native module will be initialised when it's first accessed from JS. The current behaviour is maintained but a warning is emitted until the new API is adopted. Reviewed By: fkgozali Differential Revision: D5527788 fbshipit-source-id: 56d38f81e58cf950547b9780e89bfac4667eeaaa
84 lines
1.9 KiB
Plaintext
84 lines
1.9 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 "RCTCxxModule.h"
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#import <React/RCTBridge.h>
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#import <React/RCTFollyConvert.h>
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#import <React/RCTLog.h>
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#import <cxxreact/CxxModule.h>
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#import "RCTCxxMethod.h"
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using namespace facebook::react;
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@implementation RCTCxxModule
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{
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std::unique_ptr<facebook::xplat::module::CxxModule> _module;
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}
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+ (NSString *)moduleName
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{
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return @"";
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}
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+ (BOOL)requiresMainQueueSetup
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{
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return NO;
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}
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- (void)lazyInit
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{
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if (!_module) {
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_module = [self createModule];
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if (_module) {
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RCTAssert([RCTBridgeModuleNameForClass([self class]) isEqualToString:@(_module->getName().c_str())],
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@"CxxModule class name %@ does not match runtime name %s",
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RCTBridgeModuleNameForClass([self class]), _module->getName().c_str());
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}
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}
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}
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- (std::unique_ptr<facebook::xplat::module::CxxModule>)createModule
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{
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RCTAssert(NO, @"Subclass %@ must override createModule", [self class]);
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return nullptr;
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}
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- (NSArray<id<RCTBridgeMethod>> *)methodsToExport;
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{
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[self lazyInit];
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if (!_module) {
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return nil;
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}
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NSMutableArray *moduleMethods = [NSMutableArray new];
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for (const auto &method : _module->getMethods()) {
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[moduleMethods addObject:[[RCTCxxMethod alloc] initWithCxxMethod:method]];
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}
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return moduleMethods;
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}
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- (NSDictionary<NSString *, id> *)constantsToExport;
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{
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[self lazyInit];
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if (!_module) {
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return nil;
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}
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NSMutableDictionary *moduleConstants = [NSMutableDictionary new];
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for (const auto &c : _module->getConstants()) {
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moduleConstants[@(c.first.c_str())] = convertFollyDynamicToId(c.second);
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}
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return moduleConstants;
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}
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@end
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