// This file is automatically generated by DemeterJ.

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

  before -> Main, programs, PathSpec_PList {{
    if (is_equal) {
      Main obj = (Main) history.peek();
      Object temp1 = obj.get_programs();
      if(temp1==null) { is_equal = false; return; }
      history.push(temp1);
    }
  }}
  after -> Main, programs, PathSpec_PList {{
    if (is_equal) history.pop();
  }}

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

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

  before -> Compound, first, PathSpec {{
    if (is_equal) {
      Compound obj = (Compound) history.peek();
      Object temp2 = obj.get_first();
      if(temp2==null) { is_equal = false; return; }
      history.push(temp2);
    }
  }}
  after -> Compound, first, PathSpec {{
    if (is_equal) history.pop();
  }}

  before -> Compound, second, PathSpec {{
    if (is_equal) {
      Compound obj = (Compound) history.peek();
      Object temp3 = obj.get_second();
      if(temp3==null) { is_equal = false; return; }
      history.push(temp3);
    }
  }}
  after -> Compound, second, PathSpec {{
    if (is_equal) history.pop();
  }}

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

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

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

  before -> Simple, source, Node {{
    if (is_equal) {
      Simple obj = (Simple) history.peek();
      Object temp4 = obj.get_source();
      if(temp4==null) { is_equal = false; return; }
      history.push(temp4);
    }
  }}
  after -> Simple, source, Node {{
    if (is_equal) history.pop();
  }}

  before -> Simple, target, Node {{
    if (is_equal) {
      Simple obj = (Simple) history.peek();
      Object temp5 = obj.get_target();
      if(temp5==null) { is_equal = false; return; }
      history.push(temp5);
    }
  }}
  after -> Simple, target, Node {{
    if (is_equal) history.pop();
  }}

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

  before -> Path, source, Node {{
    if (is_equal) {
      Path obj = (Path) history.peek();
      Object temp6 = obj.get_source();
      if(temp6==null) { is_equal = false; return; }
      history.push(temp6);
    }
  }}
  after -> Path, source, Node {{
    if (is_equal) history.pop();
  }}

  before -> Path, middle, Node_PList {{
    if (is_equal) {
      Path obj = (Path) history.peek();
      Object temp7 = obj.get_middle();
      if(temp7==null) { is_equal = false; return; }
      history.push(temp7);
    }
  }}
  after -> Path, middle, Node_PList {{
    if (is_equal) history.pop();
  }}

  before -> Path, target, Node {{
    if (is_equal) {
      Path obj = (Path) history.peek();
      Object temp8 = obj.get_target();
      if(temp8==null) { is_equal = false; return; }
      history.push(temp8);
    }
  }}
  after -> Path, target, Node {{
    if (is_equal) history.pop();
  }}

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

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

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

  before Node {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp9 = host.get_v();
    Object temp10 = ((Node) obj).get_v();
    if(temp9 == null && temp10 == null) {}
    else if(temp9 == null ||
            temp10 == null ||
            !temp9.equals(temp10)) { 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 temp11 = host.get_copy();
    Object temp12 = ((CopyVisitor) obj).get_copy();
    if(temp11 == null && temp12 == null) {}
    else if(temp11 == null ||
            temp12 == null ||
            !temp11.equals(temp12)) { 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 -> PathSpec_PList, first, Nonempty_PathSpec_PList {{
    if (is_equal) {
      PathSpec_PList obj = (PathSpec_PList) history.peek();
      Object temp13 = obj.get_first();
      if(temp13==null) { is_equal = false; return; }
      history.push(temp13);
    }
  }}
  after -> PathSpec_PList, first, Nonempty_PathSpec_PList {{
    if (is_equal) history.pop();
  }}

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

  before -> Node_PList, first, Nonempty_Node_PList {{
    if (is_equal) {
      Node_PList obj = (Node_PList) history.peek();
      Object temp14 = obj.get_first();
      if(temp14==null) { is_equal = false; return; }
      history.push(temp14);
    }
  }}
  after -> Node_PList, first, Nonempty_Node_PList {{
    if (is_equal) history.pop();
  }}

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

  before -> Nonempty_PathSpec_PList, it, PathSpec {{
    if (is_equal) {
      Nonempty_PathSpec_PList obj = (Nonempty_PathSpec_PList) history.peek();
      Object temp15 = obj.get_it();
      if(temp15==null) { is_equal = false; return; }
      history.push(temp15);
    }
  }}
  after -> Nonempty_PathSpec_PList, it, PathSpec {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_PathSpec_PList, next, Nonempty_PathSpec_PList {{
    if (is_equal) {
      Nonempty_PathSpec_PList obj = (Nonempty_PathSpec_PList) history.peek();
      Object temp16 = obj.get_next();
      if(temp16==null) { is_equal = false; return; }
      history.push(temp16);
    }
  }}
  after -> Nonempty_PathSpec_PList, next, Nonempty_PathSpec_PList {{
    if (is_equal) history.pop();
  }}

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

  before -> Nonempty_Node_PList, it, Node {{
    if (is_equal) {
      Nonempty_Node_PList obj = (Nonempty_Node_PList) history.peek();
      Object temp17 = obj.get_it();
      if(temp17==null) { is_equal = false; return; }
      history.push(temp17);
    }
  }}
  after -> Nonempty_Node_PList, it, Node {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_Node_PList, next, Nonempty_Node_PList {{
    if (is_equal) {
      Nonempty_Node_PList obj = (Nonempty_Node_PList) history.peek();
      Object temp18 = obj.get_next();
      if(temp18==null) { is_equal = false; return; }
      history.push(temp18);
    }
  }}
  after -> Nonempty_Node_PList, next, Nonempty_Node_PList {{
    if (is_equal) history.pop();
  }}

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

  return boolean {{ is_equal }}
}