react-native/React/CxxModule/RCTCxxModule.mm

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/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import "RCTCxxModule.h"
#import <React/RCTBridge.h>
#import <React/RCTFollyConvert.h>
#import <React/RCTLog.h>
#import <cxxreact/CxxModule.h>
#import "RCTCxxMethod.h"
using namespace facebook::react;
@implementation RCTCxxModule
{
std::unique_ptr<facebook::xplat::module::CxxModule> _module;
}
+ (NSString *)moduleName
{
return @"";
}
- (void)lazyInit
{
if (!_module) {
_module = [self createModule];
if (_module) {
RCTAssert([RCTBridgeModuleNameForClass([self class]) isEqualToString:@(_module->getName().c_str())],
@"CxxModule class name %@ does not match runtime name %s",
RCTBridgeModuleNameForClass([self class]), _module->getName().c_str());
}
}
}
- (std::unique_ptr<facebook::xplat::module::CxxModule>)createModule
{
RCTAssert(NO, @"Subclass %@ must override createModule", [self class]);
return nullptr;
}
- (NSArray<id<RCTBridgeMethod>> *)methodsToExport;
{
[self lazyInit];
if (!_module) {
return nil;
}
NSMutableArray *moduleMethods = [NSMutableArray new];
for (const auto &method : _module->getMethods()) {
[moduleMethods addObject:[[RCTCxxMethod alloc] initWithCxxMethod:method]];
}
return moduleMethods;
}
- (NSDictionary<NSString *, id> *)constantsToExport;
{
[self lazyInit];
if (!_module) {
return nil;
}
NSMutableDictionary *moduleConstants = [NSMutableDictionary new];
for (const auto &c : _module->getConstants()) {
moduleConstants[@(c.first.c_str())] = convertFollyDynamicToId(c.second);
}
return moduleConstants;
}
@end