Commit Graph

4 Commits

Author SHA1 Message Date
Renkai Ge bf38e69870
[ty] Rename "possibly unbound" diagnostics to "possibly missing" (#20492)
Co-authored-by: Alex Waygood <alex.waygood@gmail.com>
2025-09-23 14:26:55 +00:00
Matthew Mckee b30d97e5e0
[ty] Support `__setitem__` and improve `__getitem__` related diagnostics (#19578)
## Summary

Adds validation to subscript assignment expressions.

```py
class Foo: ...

class Bar:
    __setattr__ = None

class Baz:
    def __setitem__(self, index: str, value: int) -> None:
        pass

# We now emit a diagnostic on these statements
Foo()[1] = 2
Bar()[1] = 2
Baz()[1] = 2

```

Also improves error messages on invalid `__getitem__` expressions

## Test Plan

Update mdtests and add more to `subscript/instance.md`

---------

Co-authored-by: David Peter <sharkdp@users.noreply.github.com>
Co-authored-by: David Peter <mail@david-peter.de>
2025-08-01 09:23:27 +02:00
Matthew Mckee 4739bc8d14
[ty] Fix incorrect diagnostic when calling `__setitem__` (#19645)
## Summary

Resolves https://github.com/astral-sh/ty/issues/862 by not emitting a
diagnostic.

## Test Plan

Add test to show we don't emit the diagnostic
2025-07-30 20:34:52 +02:00
Micha Reiser b51c4f82ea
Rename Red Knot (#17820) 2025-05-03 19:49:15 +02:00