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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 __NEST_FV_H__
#define __NEST_FV_H__
#include "nest/VarID.h"
#include "nest/Expr.h"
#include <set>
namespace nest
{
/**
* @brief Collect free variables from nest expr/stmt/block/...
*/
struct FV
{
static std::set<VarID> in(const Expr &);
};
} // namespace nest
#endif // __NEST_FV_H__
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