operator.h

/* Copyright (c) 2016 Baidu, Inc. All Rights Reserved.
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The above copyright notice and this permission notice shall be included in all
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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SOFTWARE.
==============================================================================*/

#pragma once

#include <map>

#include "attribute.h"
#include "block_desc.h"
#include "common/type_define.h"
#include "common/types.h"
#include "common/variant.h"
#include "op_info.h"
#include "op_kernel_type.h"
#include "paddle_mobile_object.h"
#include "scope.h"
#include "tensor.h"
#include "variable.h"

namespace paddle_mobile {
    namespace framework {

        template <typename Dtype> class OperatorBase : PaddleMobileObject {
          public:
            OperatorBase(const std::string &type, const VariableNameMap &inputs,
                         const VariableNameMap &outputs,
                         const AttributeMap &attrs,
                         std::shared_ptr<Scope> scope);
            virtual ~OperatorBase() {}
            virtual void Run() const = 0;

            const VariableNameMap &Inputs() const { return inputs_; }
            const VariableNameMap &Outputs() const { return outputs_; }
            const std::string &Type() const { return type_; }
            const AttributeMap &Attrs() const { return attrs_; }
            void ClearVariables() const {
                if (this->scope_) {
                    this->scope_->EraseVars(this->inputs_.at("Filter"));
                    this->scope_->EraseVars(this->inputs_.at("Input"));
                }
            }

          protected:
            std::shared_ptr<Scope> scope_;
            std::string type_;
            VariableNameMap inputs_;
            VariableNameMap outputs_;
            AttributeMap attrs_;

          private:
            void CheckAllInputOutputSet() const;
        };

        template <typename Dtype>
        class OperatorWithKernel : public OperatorBase<Dtype> {
          public:
            OperatorWithKernel(const std::string &type,
                               const VariableNameMap &inputs,
                               const VariableNameMap &outputs,
                               const AttributeMap &attrs,
                               std::shared_ptr<Scope> scope)
                : OperatorBase<Dtype>(type, inputs, outputs, attrs, scope) {}
            virtual void InferShape() const = 0;

            virtual void Run() const = 0;
        };

        template <typename Dtype, typename P>
        class OpKernelBase : PaddleMobileObject {
          public:
            virtual void Compute(const P &para) const = 0;

            virtual ~OpKernelBase() = default;
        };

    } // namespace framework
} // namespace paddle_mobile