[ty] Show type alias value on hover#25381
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MichaReiser merged 21 commits intoJun 4, 2026
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MichaReiser
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I'm still looking into how to handle legacy type aliases, but here some initial feedback.
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After some discussion, I think we should skip support for legacy implicit type aliases for now, as there's no easy way in our model to detect those |
MichaReiser
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Jun 1, 2026
Typing conformance resultsNo changes detected ✅Current numbersThe percentage of diagnostics emitted that were expected errors held steady at 92.13%. The percentage of expected errors that received a diagnostic held steady at 87.18%. The number of fully passing files held steady at 92/134. |
Memory usage reportMemory usage unchanged ✅ |
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Summary
Adds more detail to hovering PEP695 type definitions

Closes astral-sh/ty#1477
I did not manage to get implicit type aliases working here, I had trouble figuring out how to differentiate a type alias from any other static class, e.g
Nor did I exactly follow suite with the hover format for class variable annotations, as I had trouble with differentiating a class variable/field (
a: Ushould hover asa: U (int)) to an actual assignment expression (A = U). Any help with these issues would be much appreciated 😄Test Plan
I added unit tests and tested manually