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/*
* Copyright (c) 2018 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 NNCC_PASSDATA_H
#define NNCC_PASSDATA_H
#include "mir/Graph.h"
#include "mir/TensorVariant.h"
namespace nnc
{
/**
* @brief class that encapsulate value returned and taken by pass
*/
class PassData
{
public:
/* implicit */ PassData(std::nullptr_t data)
: // NOLINT(google-explicit-constructor, hicpp-explicit-conversions)
_dataContainer{.unknown = data},
_dataType(PDT::UNKNOWN)
{
}
/**
* @brief Implicit conversion from Graph* to PassData
*/
/* implicit */ PassData(mir::Graph *graph)
: // NOLINT(google-explicit-constructor, hicpp-explicit-conversions)
_dataContainer{.graph = graph},
_dataType(PDT::GRAPH)
{
}
/**
* @brief Implicit conversion from PassData to Graph*
*/
/* implicit */ operator mir::Graph *() const
{ // NOLINT(google-explicit-constructor, hicpp-explicit-conversions)
if (_dataType != PDT::GRAPH)
return nullptr;
return _dataContainer.graph;
}
/**
* @brief Implicit conversion from Graph* to PassData
*/
/* implicit */ PassData(mir::TensorVariant *tv)
: // NOLINT(google-explicit-constructor, hicpp-explicit-conversions)
_dataContainer{.tensorVariant = tv},
_dataType(PDT::TENSOR_VARIANT)
{
}
/**
* @brief Implicit conversion from PassData to Graph*
*/
/* implicit */ operator mir::TensorVariant *() const
{ // NOLINT(google-explicit-constructor, hicpp-explicit-conversions)
if (_dataType != PDT::TENSOR_VARIANT)
return nullptr;
return _dataContainer.tensorVariant;
}
private:
// types that PassData can contain
enum class PDT : char
{
GRAPH,
TENSOR_VARIANT,
UNKNOWN
} _dataType;
// union contains all pointers to objects that can be returned from passes
union {
mir::Graph *graph;
mir::TensorVariant *tensorVariant;
void *unknown;
} _dataContainer;
};
} // namespace nnc
#endif // NNCC_PASSDATA_H
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