// 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 -> Program, exps, Outcome_PList {{
    if (is_equal) {
      Program obj = (Program) history.peek();
      Object temp1 = obj.get_exps();
      if(temp1==null) { is_equal = false; return; }
      history.push(temp1);
    }
  }}
  after -> Program, exps, Outcome_PList {{
    if (is_equal) history.pop();
  }}

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

  before -> Outcome, assignment, Assignment {{
    if (is_equal) {
      Outcome obj = (Outcome) history.peek();
      Object temp2 = obj.get_assignment();
      if(temp2==null) { is_equal = false; return; }
      history.push(temp2);
    }
  }}
  after -> Outcome, assignment, Assignment {{
    if (is_equal) history.pop();
  }}

  before -> Outcome, cnf, CNF {{
    if (is_equal) {
      Outcome obj = (Outcome) history.peek();
      Object temp3 = obj.get_cnf();
      if(temp3==null) { is_equal = false; return; }
      history.push(temp3);
    }
  }}
  after -> Outcome, cnf, CNF {{
    if (is_equal) history.pop();
  }}

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

  before -> Assignment, literals, Literal_PList {{
    if (is_equal) {
      Assignment obj = (Assignment) history.peek();
      Object temp4 = obj.get_literals();
      if(temp4==null) { is_equal = false; return; }
      history.push(temp4);
    }
  }}
  after -> Assignment, literals, Literal_PList {{
    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 -> CNF, clauses, Clause_PList {{
    if (is_equal) {
      CNF obj = (CNF) history.peek();
      Object temp5 = obj.get_clauses();
      if(temp5==null) { is_equal = false; return; }
      history.push(temp5);
    }
  }}
  after -> CNF, clauses, Clause_PList {{
    if (is_equal) history.pop();
  }}

  before -> CNF, sat, ClauseCount {{
    if (is_equal) {
      CNF obj = (CNF) history.peek();
      Object temp6 = obj.get_sat();
      if(temp6==null) { is_equal = false; return; }
      history.push(temp6);
    }
  }}
  after -> CNF, sat, ClauseCount {{
    if (is_equal) history.pop();
  }}

  before -> CNF, unsat, ClauseCount {{
    if (is_equal) {
      CNF obj = (CNF) history.peek();
      Object temp7 = obj.get_unsat();
      if(temp7==null) { is_equal = false; return; }
      history.push(temp7);
    }
  }}
  after -> CNF, unsat, ClauseCount {{
    if (is_equal) history.pop();
  }}

  before CNF {{
    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 temp8 = obj.get_weight();
      if(temp8==null) { is_equal = false; return; }
      history.push(temp8);
    }
  }}
  after -> Clause, weight, Weight {{
    if (is_equal) history.pop();
  }}

  before -> Clause, literals, Literal_PList {{
    if (is_equal) {
      Clause obj = (Clause) history.peek();
      Object temp9 = obj.get_literals();
      if(temp9==null) { is_equal = false; return; }
      history.push(temp9);
    }
  }}
  after -> Clause, literals, Literal_PList {{
    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 -> Literal, variable, Variable {{
    if (is_equal) {
      Literal obj = (Literal) history.peek();
      Object temp10 = obj.get_variable();
      if(temp10==null) { is_equal = false; return; }
      history.push(temp10);
    }
  }}
  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 temp11 = host.get_v();
    Object temp12 = ((Variable) obj).get_v();
    if(temp11 == null && temp12 == null) {}
    else if(temp11 == null ||
            temp12 == null ||
            !temp11.equals(temp12)) { is_equal = false; 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 ClauseCount {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    is_equal = is_equal && host.get_v() == ((ClauseCount) obj).get_v();
  }}

  before Main {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp13 = host.get_s();
    Object temp14 = ((Main) obj).get_s();
    if(temp13 == null && temp14 == null) {}
    else if(temp13 == null ||
            temp14 == null ||
            !temp13.equals(temp14)) { is_equal = false; 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 -> Outcome_PList, first, Nonempty_Outcome_PList {{
    if (is_equal) {
      Outcome_PList obj = (Outcome_PList) history.peek();
      Object temp17 = obj.get_first();
      if(temp17==null) { is_equal = false; return; }
      history.push(temp17);
    }
  }}
  after -> Outcome_PList, first, Nonempty_Outcome_PList {{
    if (is_equal) history.pop();
  }}

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

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

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

  before -> Clause_PList, first, Nonempty_Clause_PList {{
    if (is_equal) {
      Clause_PList obj = (Clause_PList) history.peek();
      Object temp19 = obj.get_first();
      if(temp19==null) { is_equal = false; return; }
      history.push(temp19);
    }
  }}
  after -> Clause_PList, first, Nonempty_Clause_PList {{
    if (is_equal) history.pop();
  }}

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

  before -> Nonempty_Outcome_PList, it, Outcome {{
    if (is_equal) {
      Nonempty_Outcome_PList obj = (Nonempty_Outcome_PList) history.peek();
      Object temp20 = obj.get_it();
      if(temp20==null) { is_equal = false; return; }
      history.push(temp20);
    }
  }}
  after -> Nonempty_Outcome_PList, it, Outcome {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_Outcome_PList, next, Nonempty_Outcome_PList {{
    if (is_equal) {
      Nonempty_Outcome_PList obj = (Nonempty_Outcome_PList) history.peek();
      Object temp21 = obj.get_next();
      if(temp21==null) { is_equal = false; return; }
      history.push(temp21);
    }
  }}
  after -> Nonempty_Outcome_PList, next, Nonempty_Outcome_PList {{
    if (is_equal) history.pop();
  }}

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

  before -> Nonempty_Literal_PList, it, Literal {{
    if (is_equal) {
      Nonempty_Literal_PList obj = (Nonempty_Literal_PList) history.peek();
      Object temp22 = obj.get_it();
      if(temp22==null) { is_equal = false; return; }
      history.push(temp22);
    }
  }}
  after -> Nonempty_Literal_PList, it, Literal {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_Literal_PList, next, Nonempty_Literal_PList {{
    if (is_equal) {
      Nonempty_Literal_PList obj = (Nonempty_Literal_PList) history.peek();
      Object temp23 = obj.get_next();
      if(temp23==null) { is_equal = false; return; }
      history.push(temp23);
    }
  }}
  after -> Nonempty_Literal_PList, next, Nonempty_Literal_PList {{
    if (is_equal) history.pop();
  }}

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

  before -> Nonempty_Clause_PList, it, Clause {{
    if (is_equal) {
      Nonempty_Clause_PList obj = (Nonempty_Clause_PList) history.peek();
      Object temp24 = obj.get_it();
      if(temp24==null) { is_equal = false; return; }
      history.push(temp24);
    }
  }}
  after -> Nonempty_Clause_PList, it, Clause {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_Clause_PList, next, Nonempty_Clause_PList {{
    if (is_equal) {
      Nonempty_Clause_PList obj = (Nonempty_Clause_PList) history.peek();
      Object temp25 = obj.get_next();
      if(temp25==null) { is_equal = false; return; }
      history.push(temp25);
    }
  }}
  after -> Nonempty_Clause_PList, next, Nonempty_Clause_PList {{
    if (is_equal) history.pop();
  }}

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

  return boolean {{ is_equal }}
}