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Paddle/paddle/fluid/imperative/saved_variable_wrapper_list.h

88 lines
2.3 KiB

// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
//
// 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.
#pragma once
#include <memory>
#include <utility>
#include <vector>
namespace paddle {
namespace imperative {
class VariableWrapper;
class SavedVariableWrapperList {
public:
SavedVariableWrapperList() : vars_(), is_grad_(false) {}
template <typename... Args>
explicit SavedVariableWrapperList(bool is_grad, Args&&... args)
: vars_(std::forward<Args>(args)...), is_grad_(is_grad) {}
bool IsGrad() const { return is_grad_; }
void SetIsGrad(bool is_grad) { is_grad_ = is_grad; }
const std::vector<std::shared_ptr<VariableWrapper>>& VarList() const {
return vars_;
}
std::vector<std::shared_ptr<VariableWrapper>>* MutableVarList() {
return &vars_;
}
/* Borrow method from std::vector */
size_t size() const { return vars_.size(); }
bool empty() const { return vars_.empty(); }
template <typename... ARGS>
void emplace_back(ARGS&&... args) {
vars_.emplace_back(std::forward<ARGS>(args)...);
}
using Iterator = std::vector<std::shared_ptr<VariableWrapper>>::iterator;
using ConstIterator =
std::vector<std::shared_ptr<VariableWrapper>>::const_iterator;
Iterator begin() { return vars_.begin(); }
Iterator end() { return vars_.end(); }
ConstIterator begin() const { return vars_.begin(); }
ConstIterator end() const { return vars_.end(); }
std::shared_ptr<VariableWrapper>& operator[](size_t idx) {
return vars_[idx];
}
const std::shared_ptr<VariableWrapper>& operator[](size_t idx) const {
return vars_[idx];
}
operator const std::vector<std::shared_ptr<VariableWrapper>>&() const {
return vars_;
}
private:
std::vector<std::shared_ptr<VariableWrapper>> vars_;
bool is_grad_;
};
} // namespace imperative
} // namespace paddle