| /* |
| * 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_LIBDEXFILE_DEX_DEX_FILE_TYPES_H_ |
| #define ART_LIBDEXFILE_DEX_DEX_FILE_TYPES_H_ |
| |
| #include <iosfwd> |
| #include <limits> |
| #include <utility> |
| |
| namespace art { |
| namespace dex { |
| |
| constexpr uint32_t kDexNoIndex = 0xFFFFFFFF; |
| |
| template<typename T> |
| class DexIndex { |
| public: |
| T index_; |
| |
| constexpr DexIndex() : index_(std::numeric_limits<decltype(index_)>::max()) {} |
| explicit constexpr DexIndex(T idx) : index_(idx) {} |
| |
| bool IsValid() const { |
| return index_ != std::numeric_limits<decltype(index_)>::max(); |
| } |
| static constexpr DexIndex Invalid() { |
| return DexIndex(std::numeric_limits<decltype(index_)>::max()); |
| } |
| bool operator==(const DexIndex& other) const { |
| return index_ == other.index_; |
| } |
| bool operator!=(const DexIndex& other) const { |
| return index_ != other.index_; |
| } |
| bool operator<(const DexIndex& other) const { |
| return index_ < other.index_; |
| } |
| bool operator<=(const DexIndex& other) const { |
| return index_ <= other.index_; |
| } |
| bool operator>(const DexIndex& other) const { |
| return index_ > other.index_; |
| } |
| bool operator>=(const DexIndex& other) const { |
| return index_ >= other.index_; |
| } |
| }; |
| |
| class ProtoIndex : public DexIndex<uint16_t> { |
| public: |
| ProtoIndex() {} |
| explicit constexpr ProtoIndex(uint16_t index) : DexIndex<decltype(index_)>(index) {} |
| static constexpr ProtoIndex Invalid() { |
| return ProtoIndex(std::numeric_limits<decltype(index_)>::max()); |
| } |
| }; |
| std::ostream& operator<<(std::ostream& os, const ProtoIndex& index); |
| |
| class StringIndex : public DexIndex<uint32_t> { |
| public: |
| StringIndex() {} |
| explicit constexpr StringIndex(uint32_t index) : DexIndex<decltype(index_)>(index) {} |
| static constexpr StringIndex Invalid() { |
| return StringIndex(std::numeric_limits<decltype(index_)>::max()); |
| } |
| }; |
| std::ostream& operator<<(std::ostream& os, const StringIndex& index); |
| |
| class TypeIndex : public DexIndex<uint16_t> { |
| public: |
| TypeIndex() {} |
| explicit constexpr TypeIndex(uint16_t index) : DexIndex<uint16_t>(index) {} |
| static constexpr TypeIndex Invalid() { |
| return TypeIndex(std::numeric_limits<decltype(index_)>::max()); |
| } |
| }; |
| std::ostream& operator<<(std::ostream& os, const TypeIndex& index); |
| |
| } // namespace dex |
| } // namespace art |
| |
| namespace std { |
| |
| template<> struct hash<art::dex::ProtoIndex> { |
| size_t operator()(const art::dex::ProtoIndex& index) const { |
| return hash<decltype(index.index_)>()(index.index_); |
| } |
| }; |
| |
| template<> struct hash<art::dex::StringIndex> { |
| size_t operator()(const art::dex::StringIndex& index) const { |
| return hash<decltype(index.index_)>()(index.index_); |
| } |
| }; |
| |
| template<> struct hash<art::dex::TypeIndex> { |
| size_t operator()(const art::dex::TypeIndex& index) const { |
| return hash<decltype(index.index_)>()(index.index_); |
| } |
| }; |
| |
| } // namespace std |
| |
| #endif // ART_LIBDEXFILE_DEX_DEX_FILE_TYPES_H_ |