Shunsuke Shibayama 462adfd0e6 [ty] fix incorrect member narrowing (#19802) ...

## Summary

Reported in:
https://github.com/astral-sh/ruff/pull/19795#issuecomment-3161981945

If a root expression is reassigned, narrowing on the member should be
invalidated, but there was an oversight in the current implementation.

This PR fixes that, and also removes some unnecessary handling.

## Test Plan

New tests cases in `narrow/conditionals/nested.md`.

2025-08-07 16:04:07 -07:00

..

conditionals

[ty] fix incorrect member narrowing (#19802)

2025-08-07 16:04:07 -07:00

assert.md

Rename Red Knot (#17820)

2025-05-03 19:49:15 +02:00

assignment.md

[ty] Improve subscript narrowing for "safe mutable classes" (#19781)

2025-08-06 12:26:25 +01:00

bool-call.md

Rename Red Knot (#17820)

2025-05-03 19:49:15 +02:00

boolean.md

Rename Red Knot (#17820)

2025-05-03 19:49:15 +02:00

complex_target.md

[ty] Track different uses of legacy typevars, including context when rendering typevars (#19604)

2025-08-01 12:20:32 -04:00

hasattr.md

[ty] Attribute access on intersections with negative parts (#19524)

2025-07-25 14:56:14 +02:00

isinstance.md

[ty] Support narrowing on isinstance()/issubclass() if the second argument is a dynamic, intersection, union or typevar type (#18900)

2025-06-24 10:55:26 +00:00

issubclass.md

[ty] Support narrowing on isinstance()/issubclass() if the second argument is a dynamic, intersection, union or typevar type (#18900)

2025-06-24 10:55:26 +00:00

match.md

[ty] Improve disjointness inference for NominalInstanceTypes and SubclassOfTypes (#18864)

2025-06-24 20:27:37 +00:00

post_if_statement.md

Rename Red Knot (#17820)

2025-05-03 19:49:15 +02:00

truthiness.md

[ty] Reachability constraints (#18621)

2025-06-17 09:24:28 +02:00

type_guards.md

[ty] Splat variadic arguments into parameter list (#18996)

2025-07-22 14:33:08 -04:00

type.md

[ty] Surface matched overload diagnostic directly (#18452)

2025-06-20 08:36:49 +05:30

while.md

[ty] Eagerly simplify 'True' and 'False' constraints (#18998)

2025-06-30 13:11:52 +02:00