102 lines
2.7 KiB
C++
102 lines
2.7 KiB
C++
/*
|
|
* Copyright (C) 2018 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_CLASS_ITERATOR_H_
|
|
#define ART_LIBDEXFILE_DEX_CLASS_ITERATOR_H_
|
|
|
|
#include <android-base/logging.h>
|
|
|
|
namespace art {
|
|
|
|
class ClassAccessor;
|
|
class ClassIterator;
|
|
class DexFile;
|
|
|
|
// Holder class, used to construct ClassAccessors.
|
|
class ClassIteratorData {
|
|
public:
|
|
ClassIteratorData(const DexFile& dex_file, uint32_t class_def_idx)
|
|
: dex_file_(dex_file),
|
|
class_def_idx_(class_def_idx) {}
|
|
|
|
private:
|
|
const DexFile& dex_file_;
|
|
uint32_t class_def_idx_ = 0u;
|
|
|
|
friend class ClassAccessor;
|
|
friend class ClassIterator;
|
|
};
|
|
|
|
// Iterator for visiting classes in a Dex file.
|
|
class ClassIterator : public std::iterator<std::forward_iterator_tag, ClassIteratorData> {
|
|
public:
|
|
using value_type = std::iterator<std::forward_iterator_tag, ClassIteratorData>::value_type;
|
|
using difference_type = std::iterator<std::forward_iterator_tag, value_type>::difference_type;
|
|
|
|
ClassIterator(const DexFile& dex_file, uint32_t class_def_idx)
|
|
: data_(dex_file, class_def_idx) {}
|
|
|
|
// Value after modification.
|
|
ClassIterator& operator++() {
|
|
++data_.class_def_idx_;
|
|
return *this;
|
|
}
|
|
|
|
// Value before modification.
|
|
ClassIterator operator++(int) {
|
|
ClassIterator temp = *this;
|
|
++*this;
|
|
return temp;
|
|
}
|
|
|
|
const value_type& operator*() const {
|
|
return data_;
|
|
}
|
|
|
|
bool operator==(const ClassIterator& rhs) const {
|
|
DCHECK_EQ(&data_.dex_file_, &rhs.data_.dex_file_) << "Comparing different dex files.";
|
|
return data_.class_def_idx_ == rhs.data_.class_def_idx_;
|
|
}
|
|
|
|
bool operator!=(const ClassIterator& rhs) const {
|
|
return !(*this == rhs);
|
|
}
|
|
|
|
bool operator<(const ClassIterator& rhs) const {
|
|
DCHECK_EQ(&data_.dex_file_, &rhs.data_.dex_file_) << "Comparing different dex files.";
|
|
return data_.class_def_idx_ < rhs.data_.class_def_idx_;
|
|
}
|
|
|
|
bool operator>(const ClassIterator& rhs) const {
|
|
return rhs < *this;
|
|
}
|
|
|
|
bool operator<=(const ClassIterator& rhs) const {
|
|
return !(rhs < *this);
|
|
}
|
|
|
|
bool operator>=(const ClassIterator& rhs) const {
|
|
return !(*this < rhs);
|
|
}
|
|
|
|
protected:
|
|
ClassIteratorData data_;
|
|
};
|
|
|
|
} // namespace art
|
|
|
|
#endif // ART_LIBDEXFILE_DEX_CLASS_ITERATOR_H_
|