27 lines
871 B
Python
27 lines
871 B
Python
# 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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# http://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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import re
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mutable_default_args = re.compile(r"^\s*def .+\((.+=\{\}|.+=\[\])")
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def no_mutable_default_args(logical_line):
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msg = "N301: Method's default argument shouldn't be mutable!"
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if mutable_default_args.match(logical_line):
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yield (0, msg)
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def factory(register):
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register(no_mutable_default_args)
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