// 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 Person (@
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass())
      && host.get_personname().equals(((Person) obj).get_personname());  @)

  before Main (@
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());  @)

  before PrintVisitor (@
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass())
      && host.get_indent() == ((PrintVisitor) obj).get_indent()
      && host.get_needSpace() == ((PrintVisitor) obj).get_needSpace();  @)

  before CopyVisitor (@
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());  @)

  before EqualVisitor (@
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass())
      && host.get_is_equal() == ((EqualVisitor) obj).get_is_equal();  @)

  before DisplayVisitor (@
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass())
      && host.get_indent() == ((DisplayVisitor) obj).get_indent();  @)

  before TraceVisitor (@
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass())
      && host.get_indent() == ((TraceVisitor) obj).get_indent();  @)

  before UniversalVisitor (@
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());  @)

  before Person_NList (@
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());  @)

  before Nonempty_Person_NList (@
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());  @)

  before -> Person, spouse, Person (@
    if (is_equal) {
      Person obj = (Person) history.peek();
      history.push(obj.get_spouse());
    }
  @)

  after -> Person, spouse, Person (@
    if (is_equal) history.pop();
  @)

  before -> Person, siblings, Person_NList (@
    if (is_equal) {
      Person obj = (Person) history.peek();
      history.push(obj.get_siblings());
    }
  @)

  after -> Person, siblings, Person_NList (@
    if (is_equal) history.pop();
  @)

  before -> Person_NList, first, Nonempty_Person_NList (@
    if (is_equal) {
      Person_NList obj = (Person_NList) history.peek();
      history.push(obj.get_first());
    }
  @)

  after -> Person_NList, first, Nonempty_Person_NList (@
    if (is_equal) history.pop();
  @)

  before -> Nonempty_Person_NList, it, Person (@
    if (is_equal) {
      Nonempty_Person_NList obj = (Nonempty_Person_NList) history.peek();
      history.push(obj.get_it());
    }
  @)

  after -> Nonempty_Person_NList, it, Person (@
    if (is_equal) history.pop();
  @)

  before -> Nonempty_Person_NList, next, Nonempty_Person_NList (@
    if (is_equal) {
      Nonempty_Person_NList obj = (Nonempty_Person_NList) history.peek();
      history.push(obj.get_next());
    }
  @)

  after -> Nonempty_Person_NList, next, Nonempty_Person_NList (@
    if (is_equal) history.pop();
  @)

}