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Summary -- This PR aims to resolve (or help to resolve) #18442 and #19357 by encoding the CPython semantics around the `__class__` cell in our semantic model. Namely, > `__class__` is an implicit closure reference created by the compiler if any methods in a class body refer to either `__class__` or super. from the Python [docs](https://docs.python.org/3/reference/datamodel.html#creating-the-class-object). As noted in the variant docs by @AlexWaygood, we don't fully model this behavior, opting always to create the `__class__` cell binding in a new `ScopeKind::DunderClassCell` around each method definition, without checking if any method in the class body actually refers to `__class__` or `super`. As such, this PR fixes #18442 but not #19357. Test Plan -- Existing tests, plus the tests from #19783, which now pass without any rule-specific code. Note that we opted not to alter the behavior of F841 here because flagging `__class__` in these cases still seems helpful. See the discussion in https://github.com/astral-sh/ruff/pull/20048#discussion_r2296252395 and in the test comments for more information. --------- Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com> Co-authored-by: Mikko Leppänen <mleppan23@gmail.com> |
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| .. | ||
| ruff | ||
| ruff_annotate_snippets | ||
| ruff_benchmark | ||
| ruff_cache | ||
| ruff_db | ||
| ruff_dev | ||
| ruff_diagnostics | ||
| ruff_formatter | ||
| ruff_graph | ||
| ruff_index | ||
| ruff_linter | ||
| ruff_macros | ||
| ruff_memory_usage | ||
| ruff_notebook | ||
| ruff_options_metadata | ||
| ruff_python_ast | ||
| ruff_python_ast_integration_tests | ||
| ruff_python_codegen | ||
| ruff_python_formatter | ||
| ruff_python_index | ||
| ruff_python_literal | ||
| ruff_python_parser | ||
| ruff_python_semantic | ||
| ruff_python_stdlib | ||
| ruff_python_trivia | ||
| ruff_python_trivia_integration_tests | ||
| ruff_server | ||
| ruff_source_file | ||
| ruff_text_size | ||
| ruff_wasm | ||
| ruff_workspace | ||
| ty | ||
| ty_combine | ||
| ty_ide | ||
| ty_project | ||
| ty_python_semantic | ||
| ty_server | ||
| ty_static | ||
| ty_test | ||
| ty_vendored | ||
| ty_wasm | ||