💻

• Would you like to work on a fix?

How are you using Babel?

@babel/cli

Input code

class Bar extends Foo {
    constructor() {
        let f = (...args) => super(...args);
        f();
    }
}

Example on Babel REPL

Configuration file name

.babelrc

Configuration

{
    "presets": [["@babel/preset-env", { "bugfixes": true }]],
    "targets": ["since 2017"]
}

Current and expected behavior

Current behavior (silently success and causing infinite recursion)

"use strict";

class Bar extends Foo {
  constructor() {
    var _supercall = function _supercall() {
      return _supercall(...arguments);
    };
    let f = function f() {
      return _supercall(...arguments);
    };
    f();
  }
}

Expected behavior

• Give warning or error in this situation;
• Or just keep the arrow function;
• Or transpile the whole class into pre-ES6 style (just like the result of using since 2016).

Environment

• Babel version: v7.20.2
• Node: v16.17.0
• pnpm version: pnpm 7.14.2
• OS: Windows 10
• Monorepo: no

Possible solution

No response

Additional context

No response