oxc/only-used-in-recursion Correctness

✅ This rule is turned on by default.

⚠️ 🛠️ A dangerous auto-fix is available for this rule.

Checks for arguments that are only used in recursion with no side-effects.

Supplying an argument that is only used in recursive calls is likely a mistake.

It increases cognitive complexity and may impact performance.

このルールで適合しないコード例：

function test(onlyUsedInRecursion) {
  return test(onlyUsedInRecursion);
}

このルールで適合するコード例：

function f(a: number): number {
  if (a == 0) {
    return 1;
  } else {
    return f(a - 1);
  }
}

使い方

To enable this rule using the config file or in the CLI, you can use:

Config (.oxlintrc.json)Config (oxlint.config.ts)CLI

json

{
  "rules": {
    "oxc/only-used-in-recursion": "error"
  }
}

import { defineConfig } from "oxlint";

export default defineConfig({
  rules: {
    "oxc/only-used-in-recursion": "error",
  },
});

bash

oxlint --deny oxc/only-used-in-recursion

このルールは v0.1.1 で追加されました。