getOwnPropertyNames method

(List<JSPropertyEnum>?, int?) getOwnPropertyNames({ JSGN? flags, })

Implementation

(List<JSPropertyEnum>?, int?) getOwnPropertyNames({JSGN? flags}) {
  Pointer<JSPropertyEnumRef> ptab = calloc.call<JSPropertyEnumRef>(
    sizeOf<JSPropertyEnumRef>(),
  );
  flags ??= JSGN.STRING | JSGN.ENUM_ONLY;
  final plen = calloc.call<Uint32>(sizeOf<Uint32>());
  int count = 0;
  List<JSPropertyEnum> properts = [];
  Console.info('getOwnPropertyNames: isObject=$isObject $string');
  try {
    final ret = JS_GetOwnPropertyNames(
      _ctx.ref,
      ptab,
      plen,
      _ref.ref,
      flags.value,
    );
    Console.info(
      '[getOwnPropertyNames] $ret ${plen.value}, ${_ctx.exception.toCString}',
    );
    // maybe throw not a object error
    if (ret < 0) return (null, null);
    count = plen.value;
    for (int i = 0; i < count; i++) {
      properts.add(JSPropertyEnum.raw(ptab[i]));
    }
  } finally {
    calloc.free(plen);
  }
  return (properts, count);
}