// 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 -> Output, solution, Solution {{
    if (is_equal) {
      Output obj = (Output) history.peek();
      Object temp1 = obj.get_solution();
      if(temp1==null) { is_equal = false; return; }
      history.push(temp1);
    }
  }}
  after -> Output, solution, Solution {{
    if (is_equal) history.pop();
  }}

  before -> Output, diagnostics, Diagnostics {{
    if (is_equal) {
      Output obj = (Output) history.peek();
      Object temp2 = obj.get_diagnostics();
      if(temp2==null) { is_equal = false; return; }
      history.push(temp2);
    }
  }}
  after -> Output, diagnostics, Diagnostics {{
    if (is_equal) history.pop();
  }}

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

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

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

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

  before -> Assignment, literal_list, Literal_List {{
    if (is_equal) {
      Assignment obj = (Assignment) history.peek();
      Object temp4 = obj.get_literal_list();
      if(temp4==null) { is_equal = false; return; }
      history.push(temp4);
    }
  }}
  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 temp5 = obj.get_variable();
      if(temp5==null) { is_equal = false; return; }
      history.push(temp5);
    }
  }}
  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 temp6 = host.get_v();
    Object temp7 = ((Variable) obj).get_v();
    if(temp6 == null && temp7 == null) {}
    else if(temp6 == null ||
            temp7 == null ||
            !temp6.equals(temp7)) { is_equal = false; return; }
  }}

  before -> UNSAT, optionalproof, OptionalProof {{
    if (is_equal) {
      UNSAT obj = (UNSAT) history.peek();
      Object temp8 = obj.get_optionalproof();
      if(temp8==null) { is_equal = false; return; }
      history.push(temp8);
    }
  }}
  after -> UNSAT, optionalproof, OptionalProof {{
    if (is_equal) history.pop();
  }}

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

  before -> Diagnostics, up, UP {{
    if (is_equal) {
      Diagnostics obj = (Diagnostics) history.peek();
      Object temp9 = obj.get_up();
      if(temp9==null) { is_equal = false; return; }
      history.push(temp9);
    }
  }}
  after -> Diagnostics, up, UP {{
    if (is_equal) history.pop();
  }}

  before -> Diagnostics, d, D {{
    if (is_equal) {
      Diagnostics obj = (Diagnostics) history.peek();
      Object temp10 = obj.get_d();
      if(temp10==null) { is_equal = false; return; }
      history.push(temp10);
    }
  }}
  after -> Diagnostics, d, D {{
    if (is_equal) history.pop();
  }}

  before -> Diagnostics, ssr, SSR {{
    if (is_equal) {
      Diagnostics obj = (Diagnostics) history.peek();
      Object temp11 = obj.get_ssr();
      if(temp11==null) { is_equal = false; return; }
      history.push(temp11);
    }
  }}
  after -> Diagnostics, ssr, SSR {{
    if (is_equal) history.pop();
  }}

  before -> Diagnostics, b, B {{
    if (is_equal) {
      Diagnostics obj = (Diagnostics) history.peek();
      Object temp12 = obj.get_b();
      if(temp12==null) { is_equal = false; return; }
      history.push(temp12);
    }
  }}
  after -> Diagnostics, b, B {{
    if (is_equal) history.pop();
  }}

  before -> Diagnostics, tssr, TSSR {{
    if (is_equal) {
      Diagnostics obj = (Diagnostics) history.peek();
      Object temp13 = obj.get_tssr();
      if(temp13==null) { is_equal = false; return; }
      history.push(temp13);
    }
  }}
  after -> Diagnostics, tssr, TSSR {{
    if (is_equal) history.pop();
  }}

  before -> Diagnostics, nv, NV {{
    if (is_equal) {
      Diagnostics obj = (Diagnostics) history.peek();
      Object temp14 = obj.get_nv();
      if(temp14==null) { is_equal = false; return; }
      history.push(temp14);
    }
  }}
  after -> Diagnostics, nv, NV {{
    if (is_equal) history.pop();
  }}

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

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

  before D {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp17 = host.get_d();
    Object temp18 = ((D) obj).get_d();
    if(temp17 == null && temp18 == null) {}
    else if(temp17 == null ||
            temp18 == null ||
            !temp17.equals(temp18)) { is_equal = false; return; }
  }}

  before SSR {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp19 = host.get_ssr();
    Object temp20 = ((SSR) obj).get_ssr();
    if(temp19 == null && temp20 == null) {}
    else if(temp19 == null ||
            temp20 == null ||
            !temp19.equals(temp20)) { is_equal = false; return; }
  }}

  before B {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp21 = host.get_b();
    Object temp22 = ((B) obj).get_b();
    if(temp21 == null && temp22 == null) {}
    else if(temp21 == null ||
            temp22 == null ||
            !temp21.equals(temp22)) { is_equal = false; return; }
  }}

  before TSSR {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp23 = host.get_tssr();
    Object temp24 = ((TSSR) obj).get_tssr();
    if(temp23 == null && temp24 == null) {}
    else if(temp23 == null ||
            temp24 == null ||
            !temp23.equals(temp24)) { is_equal = false; return; }
  }}

  before NV {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp25 = host.get_nv();
    Object temp26 = ((NV) obj).get_nv();
    if(temp25 == null && temp26 == null) {}
    else if(temp25 == null ||
            temp26 == null ||
            !temp25.equals(temp26)) { is_equal = false; return; }
  }}

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

  before Proof {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp27 = host.get_proof();
    Object temp28 = ((Proof) obj).get_proof();
    if(temp27 == null && temp28 == null) {}
    else if(temp27 == null ||
            temp28 == null ||
            !temp27.equals(temp28)) { is_equal = false; return; }
  }}

  before Nothing {{
    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 temp29 = host.get_copy();
    Object temp30 = ((CopyVisitor) obj).get_copy();
    if(temp29 == null && temp30 == null) {}
    else if(temp29 == null ||
            temp30 == null ||
            !temp29.equals(temp30)) { 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 temp31 = obj.get_first();
      if(temp31==null) { is_equal = false; return; }
      history.push(temp31);
    }
  }}
  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_Literal_List, it, Literal {{
    if (is_equal) {
      Nonempty_Literal_List obj = (Nonempty_Literal_List) history.peek();
      Object temp32 = obj.get_it();
      if(temp32==null) { is_equal = false; return; }
      history.push(temp32);
    }
  }}
  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 temp33 = obj.get_next();
      if(temp33==null) { is_equal = false; return; }
      history.push(temp33);
    }
  }}
  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 }}
}