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Add rule to enforce parentheses in a or b and c (#9440)

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Fixes #8721

## Summary

This implements the rule proposed in #8721, as RUF021. `and` always
binds more tightly than `or` when chaining the two together.

(This should definitely be autofixable, but I'm leaving that to a
followup PR for now.)

## Test Plan

`cargo test` / `cargo insta review`
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Alex Waygood 2024-01-09 01:28:03 +00:00 • committed by GitHub
parent 84ab21f073
commit 86b1ae9383
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crates/ruff_linter/src/codes.rs
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@ -923,6 +923,7 @@ pub fn code_to_rule(linter: Linter, code: &str) -> Option<(RuleGroup, Rule)> {
(Ruff, "018") => (RuleGroup::Preview, rules::ruff::rules::AssignmentInAssert),
(Ruff, "019") => (RuleGroup::Preview, rules::ruff::rules::UnnecessaryKeyCheck),
(Ruff, "020") => (RuleGroup::Preview, rules::ruff::rules::NeverUnion),
(Ruff, "021") => (RuleGroup::Preview, rules::ruff::rules::ParenthesizeChainedOperators),
(Ruff, "100") => (RuleGroup::Stable, rules::ruff::rules::UnusedNOQA),
(Ruff, "200") => (RuleGroup::Stable, rules::ruff::rules::InvalidPyprojectToml),