50 lines
1.3 KiB
Python
50 lines
1.3 KiB
Python
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# coding=utf-8
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"""Operations for storing and retrieving formatting info on ast nodes."""
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# Copyright 2017 Google LLC
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#
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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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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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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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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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PASTA_DICT = '__pasta__'
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def get(node, name, default=None):
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try:
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return _formatting_dict(node).get(name, default)
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except AttributeError:
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return default
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def set(node, name, value):
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if not hasattr(node, PASTA_DICT):
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try:
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setattr(node, PASTA_DICT, {})
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except AttributeError:
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pass
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_formatting_dict(node)[name] = value
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def append(node, name, value):
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set(node, name, get(node, name, '') + value)
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def prepend(node, name, value):
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set(node, name, value + get(node, name, ''))
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def _formatting_dict(node):
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return getattr(node, PASTA_DICT)
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