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46 lines
1.3 KiB
Objective-C
46 lines
1.3 KiB
Objective-C
//
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// ASWeakSet.h
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// AsyncDisplayKit
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//
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// Created by Adlai Holler on 1/7/16.
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//
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// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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#import <Foundation/Foundation.h>
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NS_ASSUME_NONNULL_BEGIN
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@interface ASWeakSet<__covariant ObjectType> : NSObject<NSFastEnumeration>
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/// Returns YES if the receiver is empty, NO otherwise.
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@property (nonatomic, readonly, getter=isEmpty) BOOL empty;
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/// Returns YES if `object` is in the receiver, NO otherwise.
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- (BOOL)containsObject:(ObjectType)object;
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/// Insets `object` into the set.
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- (void)addObject:(ObjectType)object;
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/// Removes object from the set.
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- (void)removeObject:(ObjectType)object;
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/// Removes all objects from the set.
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- (void)removeAllObjects;
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/// Returns a standard *retained* NSArray of all objects. Not free to generate, but useful for iterating over contents.
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- (NSArray *)allObjects;
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/**
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* How many objects are contained in this set.
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* NOTE: This computed property is O(N). Consider using the `empty` property.
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*/
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@property (nonatomic, readonly) NSUInteger count;
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@end
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NS_ASSUME_NONNULL_END |