1 /*
2  * Copyright (C) 2013 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_RUNTIME_CLASS_REFERENCE_H_
18 #define ART_RUNTIME_CLASS_REFERENCE_H_
19 
20 #include <stdint.h>
21 #include <utility>
22 
23 namespace art {
24 
25 class DexFile;
26 
27 // A class is uniquely located by its DexFile and the class_defs_ table index into that DexFile
28 typedef std::pair<const DexFile*, uint32_t> ClassReference;
29 
30 inline bool operator<(const ClassReference& lhs, const ClassReference& rhs) {
31   if (lhs.second < rhs.second) {
32     return true;
33   } else if (lhs.second > rhs.second) {
34     return false;
35   } else {
36     return (lhs.first < rhs.first);
37   }
38 }
39 
40 }  // namespace art
41 
42 #endif  // ART_RUNTIME_CLASS_REFERENCE_H_
43