Rename CK classes to AS classes

AsyncDisplayKit/TextKit/ASTextKitEntityAttribute.m

@@ -0,0 +1,40 @@
+/*
+ *  Copyright (c) 2014-present, Facebook, Inc.
+ *  All rights reserved.
+ *
+ *  This source code is licensed under the BSD-style license found in the
+ *  LICENSE file in the root directory of this source tree. An additional grant
+ *  of patent rights can be found in the PATENTS file in the same directory.
+ *
+ */
+
+#import "ASTextKitEntityAttribute.h"
+
+@implementation ASTextKitEntityAttribute
+
+- (instancetype)initWithEntity:(id<NSObject>)entity
+{
+  if (self = [super init]) {
+    _entity = entity;
+  }
+  return self;
+}
+
+- (NSUInteger)hash
+{
+  return [_entity hash];
+}
+
+- (BOOL)isEqual:(id)object
+{
+  if (self == object) {
+    return YES;
+  }
+  if (![object isKindOfClass:[self class]]) {
+    return NO;
+  }
+  ASTextKitEntityAttribute *other = (ASTextKitEntityAttribute *)object;
+  return _entity == other.entity || [_entity isEqual:other.entity];
+}
+
+@end