Function array_iterator_func

src/PyListProxyHandler.cc:1907–1943

private util

// private util
static bool array_iterator_func(JSContext *cx, unsigned argc, JS::Value *vp, int itemKind) {
  JS::CallArgs args = JS::CallArgsFromVp(argc, vp);

  JS::RootedObject proxy(cx, JS::ToObject(cx, args.thisv()));
  if (!proxy) {
    return false;
  }
  PyObject *self = JS::GetMaybePtrFromReservedSlot<PyObject>(proxy, PyObjectSlot);

  JS::RootedObject global(cx, JS::GetNonCCWObjectGlobal(proxy));

  JS::RootedValue constructor_val(cx);
  if (!JS_GetProperty(cx, global, "ListIterator", &constructor_val)) return false;
  if (!constructor_val.isObject()) {
    if (!DefineListIterator(cx, global)) {
      return false;
    }

    if (!JS_GetProperty(cx, global, "ListIterator", &constructor_val)) return false;
    if (!constructor_val.isObject()) {
      JS_ReportErrorASCII(cx, "ListIterator is not a constructor");
      return false;
    }
  }
  JS::RootedObject constructor(cx, &constructor_val.toObject());

  JS::RootedObject obj(cx);
  if (!JS::Construct(cx, constructor_val, JS::HandleValueArray::empty(), &obj)) return false;
  if (!obj) return false;

  JS::SetReservedSlot(obj, ListIteratorSlotIteratedObject, JS::PrivateValue((void *)self));
  JS::SetReservedSlot(obj, ListIteratorSlotNextIndex, JS::Int32Value(0));
  JS::SetReservedSlot(obj, ListIteratorSlotItemKind, JS::Int32Value(itemKind));

  args.rval().setObject(*obj);
  return true;
}

static bool array_entries(JSContext *cx, unsigned argc, JS::Value *vp) {
  return array_iterator_func(cx, argc, vp, ITEM_KIND_KEY_AND_VALUE);