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Fix binding of self-types on unions #7152

merged 2 commits into from Jul 5, 2019


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commented Jul 4, 2019

Fixes #7149

The fix is quite straightforward, self-types should be bound to each individual component, so I just added only basic tests. Please let me know if you want better test coverage (properties, class-methods) etc.

Ivan Levkivskyi

@ilevkivskyi ilevkivskyi requested a review from JukkaL Jul 4, 2019


JukkaL approved these changes Jul 5, 2019

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I like how this is a clean fix, and fixes a more general issue than what I reported. Just one comment about tests.

def same(self: T) -> T: ...

x: Union[A, C]
reveal_type(x.same) # N: Revealed type is 'Union[, def () -> __main__.C*]'

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JukkaL Jul 5, 2019


Maybe add a test for class method with a self type?

Ivan Levkivskyi

@ilevkivskyi ilevkivskyi merged commit dab5b29 into python:master Jul 5, 2019

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@ilevkivskyi ilevkivskyi deleted the ilevkivskyi:fix-typeddict-plugin branch Jul 5, 2019

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