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37 lines
839 B
37 lines
839 B
4 years ago
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/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#import <Foundation/Foundation.h>
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@interface MyCopyObj : NSObject<NSCopying>
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@property(nonatomic, strong, nonnull) NSArray* mObjects;
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@end
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@implementation MyCopyObj
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- (NSArray*)objects {
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return self.mObjects;
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}
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- (id)copyWithZone:(NSZone*)zone {
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MyCopyObj* copy = [[MyCopyObj alloc] init];
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if (copy != nil) {
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NSArray* arr = [NSArray new];
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[arr initWithArray:self.mObjects copyItems:YES];
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copy->_mObjects = arr;
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}
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return copy;
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}
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@end
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void loop_over_copied_objects_linear(MyCopyObj* b) {
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MyCopyObj* c = [b copy]; // calls into copyWithZone:
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NSArray* objects = c.objects;
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for (int i = 0; i < objects.count; i++) {
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}
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}
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