public static boolean parameterSlotP(StorageSlot slot) {
    { Surrogate owner = slot.slotOwner;

      return (slot.abstractP &&
          ((owner != null) &&
           ((((Stella_Class)(owner.surrogateValue)) != null) &&
            ((Stella_Class)(owner.surrogateValue)).parameters().memberP(slot.slotName))));
    }
  }