What version of Oxlint are you using?
1.67.0
What command did you run?
yarn oxlint -c oxlint.config.mjs
What does your .oxlintrc.json (or oxlint.config.ts) config file look like?
import { defineConfig } from 'oxlint';
export default defineConfig({
categories: {
correctness: 'off',
},
rules: {
'eslint/no-loop-func': 'error',
},
});What happened?
Oxlint reports eslint(no-loop-func) for functions inside loops, even when loop variables use let, incorrectly flagging safe closures.
To reproduce:
const callbacks = [];
for (let row = 0; row < 5; row++) {
for (let col = 0; col < 5; col++) {
// flag
callbacks.push(function () {
return row + col;
});
}
}
let factor = 0;
if (factor < 5) {
factor++;
} else {
for (let index = 0; index < 5; index++) {
// flag
const compute = (value, index) => factor * value + index;
}
}
let isOn = false;
if (isOn) {
isOn = true;
}
for (let imageId = 0; imageId < 5; imageId++) {
// flag
image.onload = () => (isOn ? 'enabled' : 'disabled');
}Output:
× eslint(no-loop-func): Function declared in a loop contains unsafe references to variable(s)
╭─[test.ts:5:24]
4 │ // flag
5 │ ╭─▶ callbacks.push(function () {
6 │ │ return row + col;
7 │ ╰─▶ });
8 │ }
╰────
help: Variables declared with 'var' are function-scoped, not block-scoped. Consider using 'let' or 'const' for block-scoped variables, or move the function outside the loop.
× eslint(no-loop-func): Function declared in a loop contains unsafe references to variable(s)
╭─[test.ts:17:25]
16 │ // flag
17 │ const compute = (value, index) => factor * value + index;
· ────────────────────────────────────────
18 │ }
╰────
help: Variables declared with 'var' are function-scoped, not block-scoped. Consider using 'let' or 'const' for block-scoped variables, or move the function outside the loop.
× eslint(no-loop-func): Function declared in a loop contains unsafe references to variable(s)
╭─[test.ts:28:20]
27 │ // flag
28 │ image.onload = () => (isOn ? 'enabled' : 'disabled');
· ─────────────────────────────────────
29 │ }
╰────
help: Variables declared with 'var' are function-scoped, not block-scoped. Consider using 'let' or 'const' for block-scoped variables, or move the function outside the loop.
What version of Oxlint are you using?
1.67.0
What command did you run?
yarn oxlint -c oxlint.config.mjsWhat does your
.oxlintrc.json(oroxlint.config.ts) config file look like?What happened?
Oxlint reports
eslint(no-loop-func)for functions inside loops, even when loop variables uselet, incorrectly flagging safe closures.To reproduce:
Output: