// This file is automatically generated by DemeterJ.

SubgraphVisitor {
  {{
    private java.util.Stack history = new java.util.Stack();
    public SubgraphVisitor(Object obj) {
      history.push(obj);
    }
  }}

  before Main {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp1 = host.get_s();
    Object temp2 = ((Main) obj).get_s();
    if(temp1 == null && temp2 == null) {}
    else if(temp1 == null ||
            temp2 == null ||
            !temp1.equals(temp2)) { is_equal = false; return; }
  }}

  before -> Assignment, literal_list, Literal_List {{
    if (is_equal) {
      Assignment obj = (Assignment) history.peek();
      Object temp3 = obj.get_literal_list();
      if(temp3==null) { is_equal = false; return; }
      history.push(temp3);
    }
  }}
  after -> Assignment, literal_list, Literal_List {{
    if (is_equal) history.pop();
  }}

  before Assignment {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Literal, variable, Variable {{
    if (is_equal) {
      Literal obj = (Literal) history.peek();
      Object temp4 = obj.get_variable();
      if(temp4==null) { is_equal = false; return; }
      history.push(temp4);
    }
  }}
  after -> Literal, variable, Variable {{
    if (is_equal) history.pop();
  }}

  before Literal {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before Pos {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before Neg {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before Variable {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp5 = host.get_ident();
    Object temp6 = ((Variable) obj).get_ident();
    if(temp5 == null && temp6 == null) {}
    else if(temp5 == null ||
            temp6 == null ||
            !temp5.equals(temp6)) { is_equal = false; return; }
  }}

  before -> History, start, State {{
    if (is_equal) {
      History obj = (History) history.peek();
      Object temp7 = obj.get_start();
      if(temp7==null) { is_equal = false; return; }
      history.push(temp7);
    }
  }}
  after -> History, start, State {{
    if (is_equal) history.pop();
  }}

  before -> History, tnstate_list, TNState_List {{
    if (is_equal) {
      History obj = (History) history.peek();
      Object temp8 = obj.get_tnstate_list();
      if(temp8==null) { is_equal = false; return; }
      history.push(temp8);
    }
  }}
  after -> History, tnstate_list, TNState_List {{
    if (is_equal) history.pop();
  }}

  before History {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> State, m, Assignment {{
    if (is_equal) {
      State obj = (State) history.peek();
      Object temp9 = obj.get_m();
      if(temp9==null) { is_equal = false; return; }
      history.push(temp9);
    }
  }}
  after -> State, m, Assignment {{
    if (is_equal) history.pop();
  }}

  before -> State, f, Instance {{
    if (is_equal) {
      State obj = (State) history.peek();
      Object temp10 = obj.get_f();
      if(temp10==null) { is_equal = false; return; }
      history.push(temp10);
    }
  }}
  after -> State, f, Instance {{
    if (is_equal) history.pop();
  }}

  before -> State, n, Assignment {{
    if (is_equal) {
      State obj = (State) history.peek();
      Object temp11 = obj.get_n();
      if(temp11==null) { is_equal = false; return; }
      history.push(temp11);
    }
  }}
  after -> State, n, Assignment {{
    if (is_equal) history.pop();
  }}

  before State {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> TNState, transitionrulename, TransitionRuleName {{
    if (is_equal) {
      TNState obj = (TNState) history.peek();
      Object temp12 = obj.get_transitionrulename();
      if(temp12==null) { is_equal = false; return; }
      history.push(temp12);
    }
  }}
  after -> TNState, transitionrulename, TransitionRuleName {{
    if (is_equal) history.pop();
  }}

  before TNState {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before TransitionRuleName {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp13 = host.get_ident();
    Object temp14 = ((TransitionRuleName) obj).get_ident();
    if(temp13 == null && temp14 == null) {}
    else if(temp13 == null ||
            temp14 == null ||
            !temp13.equals(temp14)) { is_equal = false; return; }
  }}

  before Instance {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before PrintVisitor {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    is_equal = is_equal && host.get_indent() == ((PrintVisitor) obj).get_indent();
    is_equal = is_equal && host.get_needSpace() == ((PrintVisitor) obj).get_needSpace();
  }}

  before CopyVisitor {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp15 = host.get_copy();
    Object temp16 = ((CopyVisitor) obj).get_copy();
    if(temp15 == null && temp16 == null) {}
    else if(temp15 == null ||
            temp16 == null ||
            !temp15.equals(temp16)) { is_equal = false; return; }
  }}

  before SubgraphVisitor {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    is_equal = is_equal && host.get_is_equal() == ((SubgraphVisitor) obj).get_is_equal();
  }}

  before EqualVisitor {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    is_equal = is_equal && host.get_is_equal() == ((EqualVisitor) obj).get_is_equal();
  }}

  before DisplayVisitor {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    is_equal = is_equal && host.get_indent() == ((DisplayVisitor) obj).get_indent();
  }}

  before TraceVisitor {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    is_equal = is_equal && host.get_indent() == ((TraceVisitor) obj).get_indent();
  }}

  before UniversalVisitor {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Literal_List, first, Nonempty_Literal_List {{
    if (is_equal) {
      Literal_List obj = (Literal_List) history.peek();
      Object temp17 = obj.get_first();
      if(temp17==null) { is_equal = false; return; }
      history.push(temp17);
    }
  }}
  after -> Literal_List, first, Nonempty_Literal_List {{
    if (is_equal) history.pop();
  }}

  before Literal_List {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> TNState_List, first, Nonempty_TNState_List {{
    if (is_equal) {
      TNState_List obj = (TNState_List) history.peek();
      Object temp18 = obj.get_first();
      if(temp18==null) { is_equal = false; return; }
      history.push(temp18);
    }
  }}
  after -> TNState_List, first, Nonempty_TNState_List {{
    if (is_equal) history.pop();
  }}

  before TNState_List {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Nonempty_Literal_List, it, Literal {{
    if (is_equal) {
      Nonempty_Literal_List obj = (Nonempty_Literal_List) history.peek();
      Object temp19 = obj.get_it();
      if(temp19==null) { is_equal = false; return; }
      history.push(temp19);
    }
  }}
  after -> Nonempty_Literal_List, it, Literal {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_Literal_List, next, Nonempty_Literal_List {{
    if (is_equal) {
      Nonempty_Literal_List obj = (Nonempty_Literal_List) history.peek();
      Object temp20 = obj.get_next();
      if(temp20==null) { is_equal = false; return; }
      history.push(temp20);
    }
  }}
  after -> Nonempty_Literal_List, next, Nonempty_Literal_List {{
    if (is_equal) history.pop();
  }}

  before Nonempty_Literal_List {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  before -> Nonempty_TNState_List, it, TNState {{
    if (is_equal) {
      Nonempty_TNState_List obj = (Nonempty_TNState_List) history.peek();
      Object temp21 = obj.get_it();
      if(temp21==null) { is_equal = false; return; }
      history.push(temp21);
    }
  }}
  after -> Nonempty_TNState_List, it, TNState {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_TNState_List, next, Nonempty_TNState_List {{
    if (is_equal) {
      Nonempty_TNState_List obj = (Nonempty_TNState_List) history.peek();
      Object temp22 = obj.get_next();
      if(temp22==null) { is_equal = false; return; }
      history.push(temp22);
    }
  }}
  after -> Nonempty_TNState_List, next, Nonempty_TNState_List {{
    if (is_equal) history.pop();
  }}

  before Nonempty_TNState_List {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

  return boolean {{ is_equal }}
}