// 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 -> WCNF, preamble, Preamble {{
    if (is_equal) {
      WCNF obj = (WCNF) history.peek();
      Object temp1 = obj.get_preamble();
      if(temp1==null) { is_equal = false; return; }
      history.push(temp1);
    }
  }}
  after -> WCNF, preamble, Preamble {{
    if (is_equal) history.pop();
  }}

  before -> WCNF, formula, Formula {{
    if (is_equal) {
      WCNF obj = (WCNF) history.peek();
      Object temp2 = obj.get_formula();
      if(temp2==null) { is_equal = false; return; }
      history.push(temp2);
    }
  }}
  after -> WCNF, formula, Formula {{
    if (is_equal) history.pop();
  }}

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

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

  before -> Formula, clauses, Clause_List {{
    if (is_equal) {
      Formula obj = (Formula) history.peek();
      Object temp3 = obj.get_clauses();
      if(temp3==null) { is_equal = false; return; }
      history.push(temp3);
    }
  }}
  after -> Formula, clauses, Clause_List {{
    if (is_equal) history.pop();
  }}

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

  before -> Clause, weight, Weight {{
    if (is_equal) {
      Clause obj = (Clause) history.peek();
      Object temp4 = obj.get_weight();
      if(temp4==null) { is_equal = false; return; }
      history.push(temp4);
    }
  }}
  after -> Clause, weight, Weight {{
    if (is_equal) history.pop();
  }}

  before -> Clause, literals, Literal_List {{
    if (is_equal) {
      Clause obj = (Clause) history.peek();
      Object temp5 = obj.get_literals();
      if(temp5==null) { is_equal = false; return; }
      history.push(temp5);
    }
  }}
  after -> Clause, literals, Literal_List {{
    if (is_equal) history.pop();
  }}

  before -> Clause, clauseterminator, ClauseTerminator {{
    if (is_equal) {
      Clause obj = (Clause) history.peek();
      Object temp6 = obj.get_clauseterminator();
      if(temp6==null) { is_equal = false; return; }
      history.push(temp6);
    }
  }}
  after -> Clause, clauseterminator, ClauseTerminator {{
    if (is_equal) history.pop();
  }}

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

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

  before ClauseTerminator {{
    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 temp7 = obj.get_variable();
      if(temp7==null) { is_equal = false; return; }
      history.push(temp7);
    }
  }}
  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 Variable {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

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

  before Name {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp8 = host.get_v();
    Object temp9 = ((Name) obj).get_v();
    if(temp8 == null && temp9 == null) {}
    else if(temp8 == null ||
            temp9 == null ||
            !temp8.equals(temp9)) { is_equal = false; 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 Main {{
    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 temp10 = host.get_copy();
    Object temp11 = ((CopyVisitor) obj).get_copy();
    if(temp10 == null && temp11 == null) {}
    else if(temp10 == null ||
            temp11 == null ||
            !temp10.equals(temp11)) { 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 -> Clause_List, first, Nonempty_Clause_List {{
    if (is_equal) {
      Clause_List obj = (Clause_List) history.peek();
      Object temp12 = obj.get_first();
      if(temp12==null) { is_equal = false; return; }
      history.push(temp12);
    }
  }}
  after -> Clause_List, first, Nonempty_Clause_List {{
    if (is_equal) history.pop();
  }}

  before Clause_List {{
    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 temp13 = obj.get_first();
      if(temp13==null) { is_equal = false; return; }
      history.push(temp13);
    }
  }}
  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 -> Nonempty_Clause_List, it, Clause {{
    if (is_equal) {
      Nonempty_Clause_List obj = (Nonempty_Clause_List) history.peek();
      Object temp14 = obj.get_it();
      if(temp14==null) { is_equal = false; return; }
      history.push(temp14);
    }
  }}
  after -> Nonempty_Clause_List, it, Clause {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_Clause_List, next, Nonempty_Clause_List {{
    if (is_equal) {
      Nonempty_Clause_List obj = (Nonempty_Clause_List) history.peek();
      Object temp15 = obj.get_next();
      if(temp15==null) { is_equal = false; return; }
      history.push(temp15);
    }
  }}
  after -> Nonempty_Clause_List, next, Nonempty_Clause_List {{
    if (is_equal) history.pop();
  }}

  before Nonempty_Clause_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 temp16 = obj.get_it();
      if(temp16==null) { is_equal = false; return; }
      history.push(temp16);
    }
  }}
  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 temp17 = obj.get_next();
      if(temp17==null) { is_equal = false; return; }
      history.push(temp17);
    }
  }}
  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;
  }}

  return boolean {{ is_equal }}
}