static new Map<S, O> applyAlwaysRules_handlers;

static void applyAlwaysRules_step() {
  for (Lisp l : lispTruth_cloned()) {
    O handler = applyAlwaysRules_handlers.get(l.head);
    if (handler != null)
      callF(handler, lispSingleChildOrFull(l));
  }
}