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44 lines
1.2 KiB
Objective-C
44 lines
1.2 KiB
Objective-C
/*
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* Copyright 2017 Google
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import "FTransformedEnumerator.h"
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@interface FTransformedEnumerator ()
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@property (nonatomic, strong) NSEnumerator *enumerator;
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@property (nonatomic, copy) id (^transform)(id);
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@end
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@implementation FTransformedEnumerator
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- (id)initWithEnumerator:(NSEnumerator *)enumerator andTransform:(id (^)(id))transform {
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self = [super init];
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if (self) {
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self.enumerator = enumerator;
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self.transform = transform;
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}
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return self;
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}
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- (id)nextObject {
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id next = self.enumerator.nextObject;
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if (next != nil) {
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return self.transform(next);
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} else {
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return nil;
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}
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}
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@end
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