[red-knot] Fix more redundant-cast false positives#17119
Merged
AlexWaygood merged 3 commits intomainfrom Apr 1, 2025
Merged
Conversation
AlexWaygood
changed the title
redundant-cast false positivesredundant-cast false positives
Contributor
|
AlexWaygood
force-pushed
the
alex/cast-todos
branch
from
726a70b to
9b280c5
Compare
carljm
approved these changes
Apr 1, 2025
dcreager
added a commit
that referenced
this pull request
Apr 1, 2025
* main: [red-knot] Add property tests for callable types (#17006) [red-knot] Disjointness for callable types (#17094) [red-knot] Flatten `Type::Callable` into four `Type` variants (#17126) mdtest.py: do a full mdtest run immediately when the script is executed (#17128) [red-knot] Fix callable subtyping for standard parameters (#17125) [red-knot] Fix more `redundant-cast` false positives (#17119) Sync vendored typeshed stubs (#17106) [red-knot] support Any as a class in typeshed (#17107) Visit `Identifier` node as part of the `SourceOrderVisitor` (#17110) [red-knot] Don't infer Todo for quite so many tuple type expressions (#17116) CI: Run pre-commit on depot machine (#17120) Error instead of `panic!` when running Ruff from a deleted directory (#16903) (#17054) Control flow graph: setup (#17064) [red-knot] Playground improvements (#17109) [red-knot] IDE crate (#17045) Update dependency vite to v6.2.4 (#17104) [red-knot] Add redundant-cast error (#17100) [red-knot] Narrowing on `in tuple[...]` and `in str` (#17059)
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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
There are quite a few places we infer
Todotypes currently, and some of them are nested somewhat deeply in type expressions. These can cause spurious issues for the newredundant-castdiagnostics. We fixed all the false positives we saw in the mypy_primer report before merging #17100, but I think there are still lots of places where we'd emit false positives due to this check -- we currently don't run on that many projects at all in our mypy_primer check:ruff/.github/workflows/mypy_primer.yaml
Line 71 in d0c8eaa
This PR fixes some more false positives from this diagnostic by making the
Type::contains_todo()method more expansive.Test Plan
I added a regression test which causes us to emit a spurious diagnostic on
main, but does not with this PR.