mirror of
https://github.com/astral-sh/ruff.git
synced 2025-10-29 19:17:20 +00:00
62c7d8f6ba
## Summary This PR adds support for control flow for match statement. It also adds the necessary infrastructure required for narrowing constraints in case blocks and implements the logic for `PatternMatchSingleton` which is either `None` / `True` / `False`. Even after this the inferred type doesn't get simplified completely, there's a TODO for that in the test code. ## Test Plan Add test cases for control flow for (a) when there's a wildcard pattern and (b) when there isn't. There's also a test case to verify the narrowing logic. --------- Co-authored-by: Carl Meyer <carl@astral.sh>
16 lines
377 B
Rust
16 lines
377 B
Rust
use ruff_python_parser::parse_module;
|
|
|
|
#[test]
|
|
fn pattern_is_wildcard() {
|
|
let source_code = r"
|
|
match subject:
|
|
case _ as x: ...
|
|
case _ | _: ...
|
|
case _: ...
|
|
";
|
|
let parsed = parse_module(source_code).unwrap();
|
|
let cases = &parsed.syntax().body[0].as_match_stmt().unwrap().cases;
|
|
for case in cases {
|
|
assert!(case.pattern.is_wildcard());
|
|
}
|
|
}
|