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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 __LOCOEX_VARIADICARITYNODES_OP_H__
#define __LOCOEX_VARIADICARITYNODES_OP_H__
#include <loco/IR/Node.h>
#include <loco/IR/Use.h>
#include <vector>
#include <memory>
#include <cassert>
namespace locoex
{
/**
* @brief Nodes with the variadic inputs
*/
template <typename Base> class VariadicArityNode : public Base
{
public:
VariadicArityNode(uint32_t arity)
{
for (uint32_t n = 0; n < arity; ++n)
{
_args.emplace_back(std::move(std::unique_ptr<loco::Use>{new loco::Use{this}}));
}
};
virtual ~VariadicArityNode() = default;
public:
uint32_t arity(void) const final { return _args.size(); }
loco::Node *arg(uint32_t n) const final
{
assert(n < _args.size());
return _args.at(n)->node();
}
void drop(void) final
{
for (uint32_t n = 0; n < _args.size(); ++n)
{
_args.at(n)->node(nullptr);
}
}
protected:
// This API allows inherited classes to access "_args" field.
loco::Use *at(uint32_t n) const
{
assert(n < _args.size());
return _args.at(n).get();
}
private:
std::vector<std::unique_ptr<loco::Use>> _args;
};
} // namespace locoex
#endif // __LOCOEX_VARIADICARITYNODES_OP_H__
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