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[flake8-simplify] Implement enumerate-for-loop (SIM113) (#7777)

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Implements SIM113 from #998

Added tests
Limitations 
   - No fix yet
   - Only flag cases where index variable immediately precede `for` loop

@charliermarsh please review and let me know any improvements

---------

Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
This commit is contained in:
Chammika Mannakkara 2024-01-15 01:00:59 +09:00 • committed by GitHub
parent b6ce4f5f3a
commit 0003c730e0
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14 changed files with 464 additions and 11 deletions
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12
crates/ruff_python_ast/src/traversal.rs
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@ -79,3 +79,15 @@ pub fn next_sibling<'a>(stmt: &'a Stmt, suite: &'a Suite) -> Option<&'a Stmt> {
}
None
}
/// Given a [`Stmt`] and its containing [`Suite`], return the previous [`Stmt`] in the [`Suite`].
pub fn prev_sibling<'a>(stmt: &'a Stmt, suite: &'a Suite) -> Option<&'a Stmt> {
let mut prev = None;
for sibling in suite {
if sibling == stmt {
return prev;
}
prev = Some(sibling);
}
None
}