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/*
* Copyright (c) 2020 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 __ONERT_IR_GRAPH_ITERATOR_H__
#define __ONERT_IR_GRAPH_ITERATOR_H__
#include <type_traits>
#include "ir/Index.h"
namespace onert
{
namespace ir
{
class Graph;
class Operation;
template <bool is_const> class Iterator
{
public:
using GraphRef = typename std::conditional<is_const, const Graph &, Graph &>::type;
using IndexRef = const OperationIndex &;
using NodeRef = typename std::conditional<is_const, const Operation &, Operation &>::type;
using IterFn = std::function<void(IndexRef, NodeRef)>;
public:
virtual ~Iterator() = default;
virtual void iterate(GraphRef graph, const IterFn &fn) const = 0;
};
template <bool is_const = false> class DefaultIterator final : public Iterator<is_const>
{
public:
using GraphRef = typename Iterator<is_const>::GraphRef;
using IndexRef = typename Iterator<is_const>::IndexRef;
using NodeRef = typename Iterator<is_const>::NodeRef;
using IterFn = typename Iterator<is_const>::IterFn;
public:
void iterate(GraphRef graph, const IterFn &fn) const;
};
using DefaultConstIterator = DefaultIterator<true>;
template <bool is_const = false> class PostDfsIterator final : public Iterator<is_const>
{
public:
using GraphRef = typename Iterator<is_const>::GraphRef;
using IndexRef = typename Iterator<is_const>::IndexRef;
using NodeRef = typename Iterator<is_const>::NodeRef;
using IterFn = typename Iterator<is_const>::IterFn;
public:
void iterate(GraphRef graph, const IterFn &fn) const;
};
using PostDfsConstIterator = PostDfsIterator<true>;
} // namespace ir
} // namespace onert
#endif // __ONERT_IR_GRAPH_ITERATOR_H__
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