babel-plugin-lightscript/test/fixtures/match/obj-pattern/expected.js at a4f700cf95c1271aa9a97e68ad001e59819eebd1 · lightscript/babel-plugin-lightscript · GitHub

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function _hasProps(obj, props) {
  return obj != null && (typeof obj === "object" || typeof obj === "function") && props.filter(function (prop) {
    return prop in obj;
  }).length === props.length;
}

if (_hasProps(x, ["a"])) {
  const { a } = x;

  a;
} else if (_hasProps(x, ["a", "b"])) {
  const { a, b } = x;

  a + b;
} else if (_hasProps(x, ["a"])) {
  const { a, b = 1 } = x;

  a + b;
} else if (_hasProps(x, ["a", "b", "c"]) && _hasProps(x.b, ["ba"]) && _hasProps(x.c, ["ca", "cb"]) && _hasProps(x.c.cb, ["cba"])) {
  const { a, b: { ba, bb = 1 }, c: { ca, cb: { cba } } } = x;

  a + ba + bb + ca + cba;
} else if ((x === 1 || x === 2) && _hasProps(x, ["a", "b"]) && _hasProps(x.b, ["c"])) {
  const { a, b: { c } } = x;

  a + c;
} else if (_hasProps(x, []) && (_hasProps(x.a, ["b"]) && _hasProps(x.a.b, ["c"]) || _hasProps(otherObj, ["b"]) && _hasProps(otherObj.b, ["c"]))) {
  const { a: { b: { c } } = otherObj } = x;

  c;
} //TODO: | { a, ...b }: b