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/* * Copyright 2019 Google * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */
#import "FIRInstanceIDCombinedHandler.h"
NS_ASSUME_NONNULL_BEGIN
typedef void (^FIRInstanseIDHandler)(id _Nullable result, NSError *_Nullable error);
@interface FIRInstanceIDCombinedHandler <ResultType>() @property(atomic, readonly, strong) NSMutableArray<FIRInstanseIDHandler> *handlers; @end
NS_ASSUME_NONNULL_END
@implementation FIRInstanceIDCombinedHandler
- (instancetype)init { self = [super init]; if (self) { _handlers = [NSMutableArray array]; } return self; }
- (void)addHandler:(FIRInstanseIDHandler)handler { if (!handler) { return; }
@synchronized(self) { [self.handlers addObject:handler]; } }
- (FIRInstanseIDHandler)combinedHandler { FIRInstanseIDHandler combinedHandler = nil;
@synchronized(self) { NSArray<FIRInstanseIDHandler> *handlers = [self.handlers copy]; combinedHandler = ^(id result, NSError *error) { for (FIRInstanseIDHandler handler in handlers) { handler(result, error); } }; }
return combinedHandler; }
@end
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