static <A> A callF(O f, O... args) ctex {
  if (f instanceof S)
    ret (A) callMC((S) f, args);
  ifclass DynamicCallable
    if (f instanceof DynamicCallable)
      ret f/DynamicCallable._dyn(args);
  endif
  ret (A) x30_util.callF(f, args);
}

static O callMC(S method, O... args) {
  ret call(mc(), method, args);
}

static O call(O o) {
  ret callF(o);
}

static O call(O o, S method, O... args) {
  ret x30_util.call(o, method, args);
}