/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_LIBDEXFILE_DEX_DEX_FILE_TYPES_H_
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#define ART_LIBDEXFILE_DEX_DEX_FILE_TYPES_H_
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#include <iosfwd>
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#include <limits>
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#include <utility>
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namespace art {
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namespace dex {
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constexpr uint32_t kDexNoIndex = 0xFFFFFFFF;
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template<typename T>
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class DexIndex {
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public:
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T index_;
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constexpr DexIndex() : index_(std::numeric_limits<decltype(index_)>::max()) {}
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explicit constexpr DexIndex(T idx) : index_(idx) {}
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bool IsValid() const {
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return index_ != std::numeric_limits<decltype(index_)>::max();
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}
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static constexpr DexIndex Invalid() {
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return DexIndex(std::numeric_limits<decltype(index_)>::max());
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}
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bool operator==(const DexIndex& other) const {
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return index_ == other.index_;
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}
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bool operator!=(const DexIndex& other) const {
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return index_ != other.index_;
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}
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bool operator<(const DexIndex& other) const {
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return index_ < other.index_;
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}
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bool operator<=(const DexIndex& other) const {
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return index_ <= other.index_;
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}
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bool operator>(const DexIndex& other) const {
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return index_ > other.index_;
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}
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bool operator>=(const DexIndex& other) const {
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return index_ >= other.index_;
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}
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};
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class ProtoIndex : public DexIndex<uint16_t> {
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public:
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ProtoIndex() {}
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explicit constexpr ProtoIndex(uint16_t index) : DexIndex<decltype(index_)>(index) {}
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static constexpr ProtoIndex Invalid() {
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return ProtoIndex(std::numeric_limits<decltype(index_)>::max());
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}
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};
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std::ostream& operator<<(std::ostream& os, const ProtoIndex& index);
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class StringIndex : public DexIndex<uint32_t> {
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public:
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StringIndex() {}
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explicit constexpr StringIndex(uint32_t index) : DexIndex<decltype(index_)>(index) {}
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static constexpr StringIndex Invalid() {
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return StringIndex(std::numeric_limits<decltype(index_)>::max());
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}
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};
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std::ostream& operator<<(std::ostream& os, const StringIndex& index);
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class TypeIndex : public DexIndex<uint16_t> {
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public:
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TypeIndex() {}
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explicit constexpr TypeIndex(uint16_t index) : DexIndex<uint16_t>(index) {}
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static constexpr TypeIndex Invalid() {
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return TypeIndex(std::numeric_limits<decltype(index_)>::max());
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}
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};
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std::ostream& operator<<(std::ostream& os, const TypeIndex& index);
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} // namespace dex
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} // namespace art
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namespace std {
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template<> struct hash<art::dex::ProtoIndex> {
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size_t operator()(const art::dex::ProtoIndex& index) const {
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return hash<decltype(index.index_)>()(index.index_);
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}
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};
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template<> struct hash<art::dex::StringIndex> {
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size_t operator()(const art::dex::StringIndex& index) const {
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return hash<decltype(index.index_)>()(index.index_);
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}
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};
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template<> struct hash<art::dex::TypeIndex> {
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size_t operator()(const art::dex::TypeIndex& index) const {
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return hash<decltype(index.index_)>()(index.index_);
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}
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};
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} // namespace std
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#endif // ART_LIBDEXFILE_DEX_DEX_FILE_TYPES_H_
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