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Fix type context for assert_type() - #12612

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hauntsaninja merged 1 commit into
python:masterfrom
JelleZijlstra:asserttypecontext
Apr 18, 2022
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hauntsaninja merged 1 commit into
python:masterfrom
JelleZijlstra:asserttypecontext

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@JelleZijlstra

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Noticed in python/typeshed#7655 that it was incorrectly inferring list[Any]
in all cases. This is because I incorrectly put Any as the type context
in the assert_type implementation. Use the current context instead, like
for reveal_type().

Noticed in python/typeshed#7655 that it was incorrectly inferring list[Any]
in all cases. This is because I incorrectly put Any as the type context
in the assert_type implementation. Use the current context instead, like
for reveal_type().
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According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉

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Good catch. I saw that in the original PR, but it matched cast so I didn't think about it. But of course, type context doesn't matter for cast.

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hauntsaninja merged commit f501cf6 into python:master Apr 18, 2022
@JelleZijlstra
JelleZijlstra deleted the asserttypecontext branch April 18, 2022 01:08
@JelleZijlstra

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Thanks! I'm not 100% convinced cast() shouldn't do the same thing I did in this PR; it might make us better at finding unnecessary casts.

This was referenced Apr 18, 2022
JukkaL pushed a commit that referenced this pull request Apr 20, 2022
Noticed in python/typeshed#7655 that it was incorrectly inferring list[Any]
in all cases. This is because I incorrectly put Any as the type context
in the assert_type implementation. Use the current context instead, like
for reveal_type().
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2 participants