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/*
* Copyright (c) 2019 Samsung Electronics Co., Ltd. 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.
*/
#ifndef __MOCO_FRONTEND_ONNX_GRAPHBUILDERCONTEXT_H__
#define __MOCO_FRONTEND_ONNX_GRAPHBUILDERCONTEXT_H__
#include <loco.h>
#include <map>
#include <string>
#include <vector>
namespace moco
{
namespace onnx
{
/**
* @brief Class to store relations of Nodes and string names
*/
class SymbolTable
{
public:
/**
* @brief Registers one node for a name
*/
void enroll(const std::string &node_name, loco::Node *node);
/**
* @brief Queries enrolled(registered) with name and return node if found
* Will throw runtime_error if not found
* Table is independent with registering with list()
*/
loco::Node *node(const std::string &node_name);
/**
* @brief Registers multiple (appends) names for a node
* Table is independent with registering with enroll()
*/
void list(loco::Node *node, const std::string &name);
/**
* @brief Returns number of listed(registered) names for a node
*/
unsigned size(loco::Node *node);
/**
* @brief Queries listed(registered) with node and index(from 0 to size-1)
* Will throw runtime_error if node is not found or index is out of bounds
*/
const std::string &name(loco::Node *node, unsigned index);
private:
using MapNameNode_t = std::map<std::string, loco::Node *>;
using MapNodeNames_t = std::map<loco::Node *, std::vector<std::string>>;
MapNameNode_t _namenode;
MapNodeNames_t _nodenames;
};
/**
* @brief Class to store context to build IR from onnx
*/
class GraphBuilderContext
{
public:
GraphBuilderContext(loco::Graph *g, SymbolTable *nodes, SymbolTable *input_names)
: _g(g), _nodes(nodes), _input_names(input_names)
{
// DO NOTHING
}
GraphBuilderContext(const GraphBuilderContext &) = delete;
GraphBuilderContext(GraphBuilderContext &&) = delete;
public:
loco::Graph *graph() { return _g; }
SymbolTable *nodes() { return _nodes; }
SymbolTable *input_names() { return _input_names; }
private:
loco::Graph *_g;
SymbolTable *_nodes;
SymbolTable *_input_names;
};
} // namespace onnx
} // namespace moco
#endif // __MOCO_FRONTEND_ONNX_GRAPHBUILDERCONTEXT_H__
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