[ty] Understand homogeneous tuple annotations#17998
Merged
AlexWaygood merged 5 commits intomainfrom May 13, 2025
Merged
Conversation
Contributor
|
CodSpeed Performance ReportMerging #17998 will not alter performanceComparing Summary
|
AlexWaygood
force-pushed
the
alex/homogeneous-tuples
branch
2 times, most recently
from
2aca14d to
116f0b6
Compare
AlexWaygood
commented
May 9, 2025
AlexWaygood
force-pushed
the
alex/homogeneous-tuples
branch
from
116f0b6 to
69ea8ae
Compare
AlexWaygood
force-pushed
the
alex/homogeneous-tuples
branch
from
69ea8ae to
336e137
Compare
Contributor
|
Looking at the primer results, it seems like we might want assignability of homogenous tuple to Sequence before we land this? |
Member
Author
I added tests that demonstrate that we do understand a heterogeneous tuples as being subtypes of |
Contributor
|
Yeah I was just reaching the same conclusion 👍 |
Member
Author
|
I added some more tests, just for safety 😆 |
carljm
approved these changes
May 12, 2025
| def _(x: tuple[int, ...], y: tuple[str, ...]): | ||
| reveal_type(x + y) # revealed: @Todo(full tuple[...] support) | ||
| reveal_type(x + (1, 2)) # revealed: @Todo(full tuple[...] support) | ||
| # TODO: should be `tuple[int | str, ...]` |
Contributor
There was a problem hiding this comment.
Do you have any insight into what we are missing here?
Member
Author
There was a problem hiding this comment.
not really... there's so many generics fixes happening at once, though, that I feel like I'm sort-of losing track 😄
Contributor
There was a problem hiding this comment.
that's fine, not a blocker here
Member
Author
crates/ty_python_semantic/resources/mdtest/type_properties/is_fully_static.md
Show resolved
Hide resolved
AlexWaygood
force-pushed
the
alex/homogeneous-tuples
branch
from
c10a1c9 to
f65958a
Compare
dcreager
added a commit
that referenced
this pull request
May 13, 2025
…eepish * origin/main: [ty] Understand homogeneous tuple annotations (#17998)
dcreager
added a commit
that referenced
this pull request
May 13, 2025
…eep-dish * origin/main: [ty] Infer parameter specializations of generic aliases (#18021) [ty] Understand homogeneous tuple annotations (#17998) [ty] Induct into instances and subclasses when finding and applying generics (#18052) [ty] Allow classes to inherit from `type[Any]` or `type[Unknown]` (#18060) [ty] Allow a class to inherit from an intersection if the intersection contains a dynamic type and the intersection is not disjoint from `type` (#18055) [ty] Narrowing for `hasattr()` (#18053) Update reference documentation for `--python-version` (#18056) [`flake8-bugbear`] Ignore `B028` if `skip_file_prefixes` is present (#18047) [`airflow`] Apply try-catch guard to all AIR3 rules (`AIR3`) (#17887) [`pylint`] add fix safety section (`PLW3301`) (#17878) Update `--python` to accept paths to executables in virtual environments (#17954) [`pylint`] add fix safety section (`PLE4703`) (#17824) [`ruff`] Implement a recursive check for `RUF060` (#17976) [`flake8-use-pathlib`] `PTH*` suppress diagnostic for all `os.*` functions that have the `dir_fd` parameter (#17968) [`refurb`] Mark autofix as safe only for number literals in `FURB116` (#17692) [`flake8-simplify`] Fix `SIM905` autofix for `rsplit` creating a reversed list literal (#18045) Avoid initializing progress bars early (#18049)
Glyphack
pushed a commit
to Glyphack/ruff
that referenced
this pull request
May 21, 2025
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
With this PR,
tynow understands thattuple[int, ...]should be understood as "take the generictupleclass in typeshed, and specialize it with a singleinttype argument".Ironically, more code had to change in our exception-handling logic than in our type-expression-parsing logic here, in order to prevent regressions in our tests.
This PR is stacked on top of #18052, as without the fixes there this PR causes a prohibitive number of false-positive errors.
Closes astral-sh/ty#237
Test Plan
Existing mdtests updated.