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fix: nullish coalescing operator precedence #240

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Merged
Boshen merged 1 commit into from
Apr 1, 2023
Merged

fix: nullish coalescing operator precedence #240

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3 changes: 2 additions & 1 deletion crates/oxc_linter/src/rules/no_mixed_operators.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -217,7 +217,7 @@ const PRECEDENCES: [u8; 27] = [
4, 3,
9, 9,
2,
9,
3
];

const ARITHMETIC: &[&str] = &OPERATORS[..6];
Expand Down Expand Up @@ -296,6 +296,7 @@ fn test() {
("x ? a && b : 0", Some(json!([{ "groups": [["&&", "||", "?:"]] }]))),
("x ? 0 : a && b", Some(json!([{ "groups": [["&&", "||", "?:"]] }]))),
("a + b ?? c", Some(json!([{ "groups": [["+", "??"]] }]))),
("a in b ?? c", Some(json!([{ "groups": [["in", "??"]] }]))),
];

Tester::new(NoMixedOperators::NAME, pass, fail).test_and_snapshot();
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7 changes: 7 additions & 0 deletions crates/oxc_linter/src/snapshots/no_mixed_operators.snap
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Expand Up @@ -108,3 +108,10 @@ expression: no_mixed_operators
╰────
help: Use parentheses to clarify the intended order of operations.

⚠ eslint(no-mixed-operators): Unexpected mix of in with ??
╭─[no_mixed_operators.tsx:1:1]
1 │ a in b ?? c
· ── ──
╰────
help: Use parentheses to clarify the intended order of operations.