37 lines
1.1 KiB
Python
37 lines
1.1 KiB
Python
"""
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Copyright (C) 2018-2020 Intel Corporation
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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"""
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import networkx as nx
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from mo.graph.graph import Graph
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from mo.middle.replacement import MiddleReplacementPattern
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class AddIsCyclicAttribute(MiddleReplacementPattern):
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enabled = True
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def run_after(self):
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from extensions.middle.DeleteControlFlowEdges import DeleteControlFlowEdges
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return [DeleteControlFlowEdges]
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def run_before(self):
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return []
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@staticmethod
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def find_and_replace_pattern(graph: Graph):
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is_acyclic = nx.is_directed_acyclic_graph(graph)
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graph.graph['is_cyclic'] = not is_acyclic
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