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14fe1228e7
"Why would you do this? This looks like you just replaced `bool` with an overly complex trait" Yes that's correct! This should be a no-op refactoring. It replaces all of the logic in our assignability, subtyping, equivalence, and disjointness methods to work over an arbitrary `Constraints` trait instead of only working on `bool`. The methods that `Constraints` provides looks very much like what we get from `bool`. But soon we will add a new impl of this trait, and some new methods, that let us express "fuzzy" constraints that aren't always true or false. (In particular, a constraint will express the upper and lower bounds of the allowed specializations of a typevar.) Even once we have that, most of the operations that we perform on constraint sets will be the usual boolean operations, just on sets. (`false` becomes empty/never; `true` becomes universe/always; `or` becomes union; `and` becomes intersection; `not` becomes negation.) So it's helpful to have this separate PR to refactor how we invoke those operations without introducing the new functionality yet. Note that we also have translations of `Option::is_some_and` and `is_none_or`, and of `Iterator::any` and `all`, and that the `and`, `or`, `when_any`, and `when_all` methods are meant to short-circuit, just like the corresponding boolean operations. For constraint sets, that depends on being able to implement the `is_always` and `is_never` trait methods. --------- Co-authored-by: Carl Meyer <carl@astral.sh> Co-authored-by: Alex Waygood <Alex.Waygood@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 | ||