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      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_METHOD_REFERENCE_H_
     18 #define ART_RUNTIME_METHOD_REFERENCE_H_
     19 
     20 namespace art {
     21 
     22 class DexFile;
     23 
     24 // A class is uniquely located by its DexFile and the class_defs_ table index into that DexFile
     25 typedef std::pair<const DexFile*, uint32_t> ClassReference;
     26 
     27 // A method is uniquely located by its DexFile and the method_ids_ table index into that DexFile
     28 struct MethodReference {
     29   MethodReference(const DexFile* file, uint32_t index) : dex_file(file), dex_method_index(index) {
     30   }
     31   const DexFile* dex_file;
     32   uint32_t dex_method_index;
     33 };
     34 
     35 struct MethodReferenceComparator {
     36   bool operator()(MethodReference mr1, MethodReference mr2) const {
     37     if (mr1.dex_file == mr2.dex_file) {
     38       return mr1.dex_method_index < mr2.dex_method_index;
     39     } else {
     40       return mr1.dex_file < mr2.dex_file;
     41     }
     42   }
     43 };
     44 
     45 }  // namespace art
     46 
     47 #endif  // ART_RUNTIME_METHOD_REFERENCE_H_
     48