/* Copyright (c) 2018 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 #include #include "paddle/fluid/framework/op_desc.h" #include "paddle/fluid/framework/var_desc.h" #include "paddle/fluid/platform/macros.h" namespace paddle { namespace framework { namespace ir { class Node { public: enum class Type { kOperation, kVariable }; static constexpr char kControlDepVarName[] = "__control_var"; explicit Node(const std::string& name, Type type) : name_(name), var_desc_(nullptr), op_desc_(nullptr), type_(type), id_(count_++) {} explicit Node(VarDesc* var_desc) : name_(var_desc->Name()), var_desc_(new VarDesc(*var_desc)), op_desc_(nullptr), type_(Type::kVariable), id_(count_++) {} explicit Node(OpDesc* op_desc) : name_(op_desc->Type()), var_desc_(nullptr), op_desc_(new OpDesc(*op_desc, op_desc->Block())), type_(Type::kOperation), id_(count_++) {} Type NodeType() const { return type_; } std::string Name() const { return name_; } VarDesc* Var() { PADDLE_ENFORCE(IsVar()); return var_desc_.get(); } OpDesc* Op() const { PADDLE_ENFORCE(IsOp()); return op_desc_.get(); } int id() const { return id_; } bool IsOp() const { return type_ == Type::kOperation; } bool IsVar() const { return type_ == Type::kVariable; } std::vector inputs; std::vector outputs; protected: const std::string name_; std::unique_ptr var_desc_; std::unique_ptr op_desc_; Type type_; int id_; private: friend class Graph; static int count_; static void ResetId() { count_ = 0; } DISABLE_COPY_AND_ASSIGN(Node); }; } // namespace ir } // namespace framework } // namespace paddle