| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * 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. |
| */ |
| |
| #ifndef ART_RUNTIME_TYPE_REFERENCE_H_ |
| #define ART_RUNTIME_TYPE_REFERENCE_H_ |
| |
| #include <stdint.h> |
| |
| #include "base/logging.h" |
| #include "dex_file_types.h" |
| #include "string_reference.h" |
| |
| namespace art { |
| |
| class DexFile; |
| |
| // A type is located by its DexFile and the string_ids_ table index into that DexFile. |
| struct TypeReference { |
| TypeReference(const DexFile* file = nullptr, dex::TypeIndex index = dex::TypeIndex()) |
| : dex_file(file), |
| type_index(index) {} |
| |
| const DexFile* dex_file; |
| dex::TypeIndex type_index; |
| }; |
| |
| struct TypeReferenceComparator { |
| bool operator()(TypeReference mr1, TypeReference mr2) const { |
| if (mr1.dex_file != mr2.dex_file) { |
| return mr1.dex_file < mr2.dex_file; |
| } |
| return mr1.type_index < mr2.type_index; |
| } |
| }; |
| |
| // Compare the actual referenced type names. Used for type reference deduplication. |
| struct TypeReferenceValueComparator { |
| bool operator()(TypeReference tr1, TypeReference tr2) const { |
| // Note that we want to deduplicate identical boot image types even if they are |
| // referenced by different dex files, so we simply compare the descriptors. |
| StringReference sr1(tr1.dex_file, tr1.dex_file->GetTypeId(tr1.type_index).descriptor_idx_); |
| StringReference sr2(tr2.dex_file, tr2.dex_file->GetTypeId(tr2.type_index).descriptor_idx_); |
| return StringReferenceValueComparator()(sr1, sr2); |
| } |
| }; |
| |
| } // namespace art |
| |
| #endif // ART_RUNTIME_TYPE_REFERENCE_H_ |