performSelector method
performSelector:
Implementation
objc.ObjCObjectBase performSelector(
  ffi.Pointer<objc.ObjCSelector> aSelector,
) {
  final _ret = _objc_msgSend_3ctkt6(
    this.ref.pointer,
    _sel_performSelector_,
    aSelector,
  );
  return objc.ObjCObjectBase(_ret, retain: true, release: true);
}