1# Copyright 2022 Huawei Technologies Co., Ltd 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); 4# you may not use this file except in compliance with the License. 5# You may obtain a copy of the License at 6# 7# http://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, 11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12# See the License for the specific language governing permissions and 13# limitations under the License. 14# ============================================================================ 15 16from mindspore.rewrite.api.symbol_tree import SymbolTree 17 18 19def get_symbol_tree_nodes_count(stree: SymbolTree): 20 count = 0 21 for _ in stree.nodes(): 22 count += 1 23 return count 24 25 26def get_node_by_index(stree: SymbolTree, index): 27 for i, node in enumerate(stree.nodes()): 28 if i == index: 29 return node 30 31 return None 32