// This file is automatically generated by Demeter/Java.

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

  before -> A, b, B (@
    if (is_equal) {
      A obj = (A) history.peek();
      Object temp1 = obj.get_b();
      if(temp1==null) { is_equal = false; return; }
      history.push(temp1);
    }
  @)
  after -> A, b, B (@
    if (is_equal) history.pop();
  @)

  before -> A, e, E (@
    if (is_equal) {
      A obj = (A) history.peek();
      Object temp2 = obj.get_e();
      if(temp2==null) { is_equal = false; return; }
      history.push(temp2);
    }
  @)
  after -> A, e, E (@
    if (is_equal) history.pop();
  @)

  before A (@
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  @)

  before -> B, d, D (@
    if (is_equal) {
      B obj = (B) history.peek();
      Object temp3 = obj.get_d();
      if(temp3==null) { is_equal = false; return; }
      history.push(temp3);
    }
  @)
  after -> B, d, D (@
    if (is_equal) history.pop();
  @)

  before -> B, e, E (@
    if (is_equal) {
      B obj = (B) history.peek();
      Object temp4 = obj.get_e();
      if(temp4==null) { is_equal = false; return; }
      history.push(temp4);
    }
  @)
  after -> B, e, E (@
    if (is_equal) history.pop();
  @)

  before -> B, x, X (@
    if (is_equal) {
      B obj = (B) history.peek();
      Object temp5 = obj.get_x();
      if(temp5==null) { is_equal = false; return; }
      history.push(temp5);
    }
  @)
  after -> B, x, X (@
    if (is_equal) history.pop();
  @)

  before B (@
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  @)

  before -> D, c, C (@
    if (is_equal) {
      D obj = (D) history.peek();
      Object temp6 = obj.get_c();
      if(temp6==null) { is_equal = false; return; }
      history.push(temp6);
    }
  @)
  after -> D, c, C (@
    if (is_equal) history.pop();
  @)

  before D (@
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  @)

  before -> E, c, C (@
    if (is_equal) {
      E obj = (E) history.peek();
      Object temp7 = obj.get_c();
      if(temp7==null) { is_equal = false; return; }
      history.push(temp7);
    }
  @)
  after -> E, c, C (@
    if (is_equal) history.pop();
  @)

  before E (@
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  @)

  before C (@
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  @)

  before -> X, c, C (@
    if (is_equal) {
      X obj = (X) history.peek();
      Object temp8 = obj.get_c();
      if(temp8==null) { is_equal = false; return; }
      history.push(temp8);
    }
  @)
  after -> X, c, C (@
    if (is_equal) history.pop();
  @)

  before X (@
    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 Count_C_Visitor (@
    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 temp9 = host.get_copy();
    Object temp10 = ((CopyVisitor) obj).get_copy();
    if(temp9 == null && temp10 == null) {}
    else if(temp9 == null ||
            temp10 == null ||
            !temp9.equals(temp10)) { 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;
  @)

  return boolean (@ is_equal @)
}