static new Map<S, O> applyAlwaysRules_handlers;
sbool applyAlwaysRules_step_debug;

// for handlers
static new ThreadLocal<S> applyAlwaysRules_ruleID;

static void applyAlwaysRules_step() {
  L<LispStatement> statements = lispStatements_cloned();
  if (applyAlwaysRules_step_debug)
    print("applyAlwaysRules_step: " + struct(statements));
  for (LispStatement s : statements) {
    Lisp l = s.term;
    O handler = applyAlwaysRules_handlers.get(l.head);
    if (handler != null) {
      applyAlwaysRules_ruleID.set(s.globalID);
      if (applyAlwaysRules_step_debug)
        print("Calling handler for " + l.head);
      try {
        callF(handler, /*lispSingleChildOrFull*/(l));
      } finally {
        applyAlwaysRules_ruleID.set(null);
      }
    }
  }
}