[ty] Respect kw_only overwrites in dataclasses#23930
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Typing conformance resultsNo changes detected ✅Current numbersThe percentage of diagnostics emitted that were expected errors held steady at 85.29%. The percentage of expected errors that received a diagnostic held steady at 78.13%. The number of fully passing files held steady at 64/132. |
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Memory usage reportMemory usage unchanged ✅ |
AlexWaygood
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Mar 13, 2026
| if transformer_params.flags(db).contains(DataclassTransformerFlags::KW_ONLY_DEFAULT) | ||
| ); | ||
| *kw = Some(class_kw_only_default); | ||
| *kw = Some(self.has_dataclass_param(db, field_policy, DataclassFlags::KW_ONLY)); |
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That's exactly right.
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| Lint rule | Added | Removed | Changed |
|---|---|---|---|
invalid-await |
40 | 0 | 0 |
invalid-return-type |
1 | 0 | 0 |
| Total | 41 | 0 | 0 |
carljm
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Mar 13, 2026
* main: (94 commits) Fix shell injection via `shell=True` in subprocess calls (#23894) [ty] Refactor `relation.rs` to store state on a struct rather than passing around 7 arguments every time we recurse (#23837) Don't return code actions for non-Python documents (#23905) [ty] Make the default database truly statically infallible (#23929) [ty] Add `Download` button to ty playground which creates a zip export (#23478) [ty] Respect `kw_only` overwrites in dataclasses (#23930) [ty] Clarify in diagnostics that `from __future__ import annotations` only stringifies type annotations (#23928) [ty] Add a `Copy Markdown` button to playground (#23002) [ty] Fix folding range classification of lines starting with `#` (#23831) [ty] Fix folding ranges for notebooks (#23830) [ty] fix too-many-cycle panics when inferring literal type loop variables (#23875) Add `RegularCallableTypeOf` and `into_regular_callable` in `ty_extensions` (#23909) [ty] treat properties as full structural types (#23925) [ty] Avoid duplicated work during multi-inference (#23923) [ty]: make `possibly-missing-attribute` ignored by default [ty]: split out `possibly-missing-submodule` from `possibly-missing-attribute` Update astral-sh/setup-uv action to v7.5.0 (#23922) [ty] Show truthiness in ConstraintSet display and simplify falsy error message (#23913) Bump 0.15.6 (#23919) [ty] Narrow type context during collection literal inference (#23844) ...
sharkdp
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Mar 13, 2026
## Summary Similar in spirit to #23930. This is the last remaining place (I think) where we determined the presence of dataclass parameters in a way that did not account for defaults that were set on the model base. ## Test Plan New Markdown tests
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Summary
The
kw_onlydataclass parameter was previously not correctly detected as an override forkw_only_default.closes astral-sh/ty#3033
Test Plan
Extended Markdown tests.