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- /*
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * See the NOTICE file distributed with this work for additional
- * information regarding copyright ownership.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- #import "LRUCacheNode.h"
- @interface LRUCacheNode ()
- @property (nonatomic, readwrite) id value;
- @property (nonatomic, readwrite) id<NSCopying> key;
- - (instancetype)initWithValue:(id)value key:(id<NSCopying>)key;
- @end
- @implementation LRUCacheNode
- - (instancetype)initWithValue:(id)value key:(id<NSCopying>)key
- {
- if (nil == value) {
- return nil;
- }
- if ((self = [super init])) {
- _value = value;
- _key = key;
- }
- return self;
- }
- + (instancetype)nodeWithValue:(id)value key:(id<NSCopying>)key
- {
- return [[LRUCacheNode alloc] initWithValue:value key:key];
- }
- - (NSString *)description
- {
- return [NSString stringWithFormat:@"%@ %@", self.value, self.next];
- }
- @end
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