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Teach stubgen to work with complex and unary expressions #15661

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merged 3 commits into from
Jul 13, 2023

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sobolevn
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@AlexWaygood
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The PR title says stubtest -- you mean stubgen, right?

@sobolevn sobolevn changed the title Teach stubtest to work with complex and unary expressions Teach stubgen to work with complex and unary expressions Jul 13, 2023
@sobolevn
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stubgentest 😆

mypy/stubgen.py Outdated
@@ -1396,6 +1397,8 @@ def is_private_member(self, fullname: str) -> bool:
def get_str_type_of_node(
self, rvalue: Expression, can_infer_optional: bool = False, can_be_any: bool = True
) -> str:
rvalue = self.unwrap_unary_expr(rvalue)
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I'm not sure we should be doing this with all possible rvalues. Some unary expressions change the type:

>>> type(-True)
<class 'int'>

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I guess it's pretty unlikely that this would ever come up in real code, but it would still be nice to be correct here imo :)

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Hm, ~True is also a well-known anti-pattern. I agree, I will include only some cases. Like not bool and +|- int|float|complex

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sobolevn commented Jul 13, 2023

Now I only allow a very small subset of unary expressions. But, ones I allow make a lot of sense and are very common.

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LGTM, thanks!

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Failures are unrelated, see #15657
I will merge it once #15659 is merged.

@sobolevn sobolevn merged commit 2ebd51e into master Jul 13, 2023
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@sobolevn sobolevn deleted the stubgen-complex branch July 13, 2023 21:40
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3 participants