babel/packages/babel-plugin-transform-es2015-parameters/test/fixtures/parameters/regression-5787/expected.js

function f(a) {
  var _ref, _ref2, _ref3;

  var b = (_ref = (arguments.length <= 1 ? 0 : arguments.length - 1) - 3 + 1, _ref < 1 || arguments.length <= _ref ? undefined : arguments[_ref]);
  var c = (_ref2 = (arguments.length <= 1 ? 0 : arguments.length - 1) - 2 + 1, _ref2 < 1 || arguments.length <= _ref2 ? undefined : arguments[_ref2]);
  var d = (_ref3 = (arguments.length <= 1 ? 0 : arguments.length - 1) - 1 + 1, _ref3 < 1 || arguments.length <= _ref3 ? undefined : arguments[_ref3]);
  return [a, b, c, d];
}

function f(a) {
  return void 0;
}