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29 lines
482 B
29 lines
482 B
4 years ago
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/*
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* Copyright (c) 2019-present, Facebook, Inc.
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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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@interface NSObject
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@end
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@protocol NSObject
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@end
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@protocol BarDelegate<NSObject>
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@optional
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- (void)optionalFunction;
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@end
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@interface Bar : NSObject
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@property(nonatomic, assign) id<BarDelegate> delegate;
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@end
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@implementation Bar
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- (void)unsafeAction {
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[self.delegate optionalFunction];
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}
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@end
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