Spreading array into arrow function receives undefined arguments

[arshaw]

Describe the bug

It seems that arrays destructuring optimizations with arrow functions are incorrect.

Input code

function logTheNine() {
  ((theThree, theNine) => {
    console.log(theNine)
  })(...[ 3, 9 ]);
}

logTheNine();

Config

{
  "jsc": {
    "parser": {
      "syntax": "ecmascript",
      "jsx": false
    },
    "target": "es2018",
    "loose": false,
    "minify": {
      "compress": {
        "arguments": false,
        "arrows": true,
        "booleans": true,
        "booleans_as_integers": false,
        "collapse_vars": true,
        "comparisons": true,
        "computed_props": true,
        "conditionals": true,
        "dead_code": true,
        "directives": true,
        "drop_console": false,
        "drop_debugger": true,
        "evaluate": true,
        "expression": false,
        "hoist_funs": false,
        "hoist_props": true,
        "hoist_vars": false,
        "if_return": true,
        "join_vars": true,
        "keep_classnames": false,
        "keep_fargs": true,
        "keep_fnames": false,
        "keep_infinity": false,
        "loops": true,
        "negate_iife": true,
        "properties": true,
        "reduce_funcs": false,
        "reduce_vars": false,
        "side_effects": true,
        "switches": true,
        "typeofs": true,
        "unsafe": false,
        "unsafe_arrows": false,
        "unsafe_comps": false,
        "unsafe_Function": false,
        "unsafe_math": false,
        "unsafe_symbols": false,
        "unsafe_methods": false,
        "unsafe_proto": false,
        "unsafe_regexp": false,
        "unsafe_undefined": false,
        "unused": true,
        "const_to_let": true,
        "pristine_globals": true,
        "passes": 2
      },
      "mangle": false
    }
  },
  "module": {
    "type": "es6"
  },
  "minify": false,
  "isModule": true
}

Playground link (or link to the minimal reproduction)

https://play.swc.rs/?version=1.4.11&code=H4sIAAAAAAAAA%2BNKK81LLsnMz1PIyU8PyUj1y8xL1dBUqOZSUNDQKMlIDckoSk3VUSiByGgq2NqB5RQUkvPzivNzUvWA2jRgskCJWk0NPT29aAVjHQVLhVhNa65aLi5kk625AHmWkb5yAAAA&config=H4sIAAAAAAAAA32US3LbMAyG9z6FR%2Bsu2iwynRygu56BQ5OgTJcPDQE61mR890CU7LgxpJ2EDz9AAiA%2Bdvt9d0LTve0%2F%2BJN%2FBl0Qyv2fLTgm0he2dGCiRlP8QN2PGz3hhJwOCM10nUlHuvRATYUvP3%2F9XhRdyBnhplhs0SfvxsecJsehAOKDja0cskZIhP%2FrF1by%2BwSo1Ef7IecAOm0QpVH5RNBDkQKbHIIeENRZFyHKdFJdPGYpxQQrgVVDyYPIk%2FXkc%2BKcz9SCtspkCwLyBQz5M0gyzsWyhHw94T4NWzjUvm99%2FqaGsw5Vk5ATLq0lfFoh6jF7JOVqkko4w5UazHAp7neld6oA1ZKedafs00pP%2FgFwBYJGTDqCFLd5OJ6nNbXbVPrkeGRpFDjPt3TLBD0XVXnvhMpOlYFCXupmAVsNTJU10nEWvFI%2B9BYUOMezIoTGd0%2FmKCWlcYDsBMD91U6aqhmo%2Bytc4dOD2MB%2F%2BJYkD9jiETUd1ymO8ZDDRoIIdMx2w4FbQXkdF94Sl2Gd12SBRwOs6FKxgeclwA%2BAsgptXz7NBj8Pjqj6kA%2Fimhh4zlsTXxbb9b6co0791xKY9%2FNucehitrXBZfNPTZ%2F39Wv35XRbzffbdB7%2F3pTTSXbXTzRLP3hFBgAA

SWC Info output

console.log(void 0);

Expected behavior

console.log(9);

Actual behavior

console.log(void 0);

Version

1.4.11

Additional context

Original issue: fullcalendar/temporal-polyfill#36

[swc-bot]

This closed issue has been automatically locked because it had no new activity for a month. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.