64 lines
1.9 KiB
64 lines
1.9 KiB
/* Copyright (c) 2018 PaddlePaddle Authors. 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. */
|
|
|
|
/*
|
|
* This file defines the GraphTraits<X> template class that should be specified
|
|
* by classes that want to be iteratable by generic graph iterators.
|
|
*
|
|
* This file also defines the marker class Inverse that is used to iterate over
|
|
* graphs in a graph defined, inverse ordering...
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "paddle/fluid/inference/analysis/helper.h"
|
|
|
|
namespace paddle {
|
|
namespace inference {
|
|
namespace analysis {
|
|
|
|
/*
|
|
* This class should be specialized by different graph types...
|
|
* That's why the base class is empty.
|
|
*/
|
|
template <typename GraphType>
|
|
struct GraphTraits {
|
|
// using NodesBFSIterator = xxx
|
|
|
|
// NodesBFSIterator nodes_begin();
|
|
// NodesBFSIterator nodes_end();
|
|
};
|
|
|
|
/*
|
|
* Inverse - This class is used as a marker class to tell the graph iterator to
|
|
* iterate in a graph defined Inverse order.
|
|
*/
|
|
template <typename GraphType>
|
|
struct Inverse {
|
|
const GraphType &graph;
|
|
|
|
explicit Inverse(const GraphType &graph) : graph(graph) {}
|
|
};
|
|
|
|
/*
|
|
* Provide a partial specialization of GraphTraits so that the inverse of an
|
|
* inverse turns into the original graph.
|
|
*/
|
|
template <typename GraphType>
|
|
struct GraphTraits<Inverse<Inverse<GraphType>>> : GraphTraits<GraphType> {};
|
|
|
|
} // namespace analysis
|
|
} // namespace inference
|
|
} // namespace paddle
|