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671494a620
## Summary Resolves #16374. `PLW0177` now also reports the pattern of a case branch if it is an attribute access whose qualified name is that of either `np.nan` or `math.nan`. As the rule is in preview, the changes are not preview-gated. ## Test Plan `cargo nextest run` and `cargo insta test`.
94 lines
1 KiB
Python
94 lines
1 KiB
Python
import math
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from math import nan as bad_val
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import numpy as np
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from numpy import nan as npy_nan
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x = float("nan")
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y = np.NaN
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# PLW0117
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if x == float("nan"):
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pass
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# PLW0117
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if x == float("NaN"):
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pass
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# PLW0117
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if x == float("NAN"):
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pass
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# PLW0117
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if x == float("Nan"):
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pass
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# PLW0117
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if x == math.nan:
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pass
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# PLW0117
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if x == bad_val:
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pass
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# PLW0117
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if y == np.NaN:
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pass
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# PLW0117
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if y == np.NAN:
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pass
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# PLW0117
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if y == np.nan:
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pass
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# PLW0117
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if y == npy_nan:
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pass
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import builtins
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# PLW0117
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if x == builtins.float("nan"):
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pass
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# https://github.com/astral-sh/ruff/issues/16374
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match number:
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# Errors
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case np.nan: ...
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case math.nan: ...
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# No errors
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case np.nan(): ...
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case math.nan(): ...
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case float('nan'): ...
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case npy_nan: ...
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# OK
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if math.isnan(x):
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pass
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# OK
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if np.isnan(y):
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pass
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# OK
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if x == 0:
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pass
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# OK
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if x == float("32"):
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pass
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# OK
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if x == float(42):
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pass
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# OK
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if y == np.inf:
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pass
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# OK
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if x == "nan":
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pass
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