Temp

submodules/AsyncDisplayKit/Source/ASWeakSet.mm

@@ -1,84 +0,0 @@
-//
-//  ASWeakSet.mm
-//  Texture
-//
-//  Copyright (c) Facebook, Inc. and its affiliates.  All rights reserved.
-//  Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc.  All rights reserved.
-//  Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
-//
-
-#import <AsyncDisplayKit/ASWeakSet.h>
-
-@interface ASWeakSet<__covariant ObjectType> ()
-@property (nonatomic, readonly) NSHashTable<ObjectType> *hashTable;
-@end
-
-@implementation ASWeakSet
-
-- (instancetype)init
-{
-  self = [super init];
-  if (self) {
-    _hashTable = [NSHashTable hashTableWithOptions:NSHashTableWeakMemory | NSHashTableObjectPointerPersonality];
-  }
-  return self;
-}
-
-- (void)addObject:(id)object
-{
-  [_hashTable addObject:object];
-}
-
-- (void)removeObject:(id)object
-{
-  [_hashTable removeObject:object];
-}
-
-- (void)removeAllObjects
-{
-  [_hashTable removeAllObjects];
-}
-
-- (NSArray *)allObjects
-{
-  return _hashTable.allObjects;
-}
-
-- (BOOL)containsObject:(id)object
-{
-  return [_hashTable containsObject:object];
-}
-
-- (BOOL)isEmpty
-{
-  return [_hashTable anyObject] == nil;
-}
-
-/**
- Note: The `count` property of NSHashTable is unreliable
- in the case of weak-memory hash tables because entries
- that have been deallocated are not removed immediately.
- 
- In order to get the true count we have to fall back to using
- fast enumeration.
- */
-- (NSUInteger)count
-{
-  NSUInteger count = 0;
-  for (__unused id object in _hashTable) {
-    count += 1;
-  }
-  return count;
-}
-
-- (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(__unsafe_unretained id  _Nonnull *)buffer count:(NSUInteger)len
-{
-  return [_hashTable countByEnumeratingWithState:state objects:buffer count:len];
-}
-
-- (NSString *)description
-{
-  return [[super description] stringByAppendingFormat:@" count: %tu, contents: %@", self.count, _hashTable];
-}
-
-@end