1 /*
2  * Copyright (C) 2024 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package android.tools
18 
19 internal class CacheImpl : ICache {
20     private var cache = mutableMapOf<Any, Any>()
21 
getnull22     override fun <T : Any> get(element: T): T {
23         return cache.getOrPut(element) { element } as T
24     }
25 
clearnull26     override fun clear() {
27         cache = mutableMapOf()
28     }
29 
backupnull30     override fun backup(): ICache.Backup {
31         return ICache.Backup(cache.toMutableMap())
32     }
33 
restorenull34     override fun restore(backup: ICache.Backup) {
35         cache = backup.cache
36     }
37 }
38