[red-knot] Fix more redundant-cast false positives
#17119
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AlexWaygood
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redundant-cast false positivesredundant-cast false positives
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* 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)
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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.