1 /*
2  * Copyright (C) 2017 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 #ifndef ART_LIBDEXFILE_DEX_DEX_FILE_REFERENCE_H_
18 #define ART_LIBDEXFILE_DEX_DEX_FILE_REFERENCE_H_
19 
20 #include <cstdint>
21 
22 namespace art {
23 
24 class DexFile;
25 
26 class DexFileReference {
27  public:
DexFileReference(const DexFile * file,uint32_t idx)28   DexFileReference(const DexFile* file, uint32_t idx) : dex_file(file), index(idx) {}
29   const DexFile* dex_file;
30   uint32_t index;
31 
32   struct Comparator {
operatorComparator33     bool operator()(const DexFileReference& a, const DexFileReference& b) const {
34       if (a.dex_file != b.dex_file) {
35         return a.dex_file < b.dex_file;
36       }
37       return a.index < b.index;
38     }
39   };
40 };
41 
42 // Default comparators, compares the indices, not the backing data.
43 inline bool operator<(const DexFileReference& a, const DexFileReference& b) {
44   return DexFileReference::Comparator()(a, b);
45 }
46 inline bool operator==(const DexFileReference& a, const DexFileReference& b) {
47   return a.dex_file == b.dex_file && a.index == b.index;
48 }
49 
50 }  // namespace art
51 
52 #endif  // ART_LIBDEXFILE_DEX_DEX_FILE_REFERENCE_H_
53