ruff/crates/ty_python_semantic
Carl Meyer 8223fea062
[ty] ensure union normalization really normalizes (#20147)
## Summary

Now that we have `Type::TypeAlias`, which can wrap a union, and the
possibility of unions including non-unpacked type aliases (which is
necessary to support recursive type aliases), we can no longer assume in
`UnionType::normalized_impl` that normalizing each element of an
existing union will result in a set of elements that we can order and
then place raw into `UnionType` to create a normalized union. It's now
possible for those elements to themselves include union types (unpacked
from an alias). So instead, we need to feed those elements into the full
`UnionBuilder` (with alias-unpacking turned on) to flatten/normalize
them, and then order them.

## Test Plan

Added mdtest.

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Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
2025-08-29 09:02:35 -07:00
..
resources [ty] ensure union normalization really normalizes (#20147) 2025-08-29 09:02:35 -07:00
src [ty] ensure union normalization really normalizes (#20147) 2025-08-29 09:02:35 -07:00
tests [ty] Track open files in the server (#19264) 2025-07-18 19:33:35 +05:30
build.rs
Cargo.toml [ty] Avoid overcounting shared memory usage (#19773) 2025-08-06 15:32:02 -04:00
mdtest.py
mdtest.py.lock