// 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 Main {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
    Object temp1 = host.get_s();
    Object temp2 = ((Main) obj).get_s();
    if(temp1 == null && temp2 == null) {}
    else if(temp1 == null ||
            temp2 == null ||
            !temp1.equals(temp2)) { is_equal = false; return; }
  }}

  before -> SPL, block, Block {{
    if (is_equal) {
      SPL obj = (SPL) history.peek();
      Object temp3 = obj.get_block();
      if(temp3==null) { is_equal = false; return; }
      history.push(temp3);
    }
  }}
  after -> SPL, block, Block {{
    if (is_equal) history.pop();
  }}

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

  before -> Block, declaration_list, Declaration_List {{
    if (is_equal) {
      Block obj = (Block) history.peek();
      Object temp4 = obj.get_declaration_list();
      if(temp4==null) { is_equal = false; return; }
      history.push(temp4);
    }
  }}
  after -> Block, declaration_list, Declaration_List {{
    if (is_equal) history.pop();
  }}

  before -> Block, statement_nlist, Statement_NList {{
    if (is_equal) {
      Block obj = (Block) history.peek();
      Object temp5 = obj.get_statement_nlist();
      if(temp5==null) { is_equal = false; return; }
      history.push(temp5);
    }
  }}
  after -> Block, statement_nlist, Statement_NList {{
    if (is_equal) history.pop();
  }}

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

  before -> Declaration, type, Type {{
    if (is_equal) {
      Declaration obj = (Declaration) history.peek();
      Object temp6 = obj.get_type();
      if(temp6==null) { is_equal = false; return; }
      history.push(temp6);
    }
  }}
  after -> Declaration, type, Type {{
    if (is_equal) history.pop();
  }}

  before -> Declaration, variable, Variable {{
    if (is_equal) {
      Declaration obj = (Declaration) history.peek();
      Object temp7 = obj.get_variable();
      if(temp7==null) { is_equal = false; return; }
      history.push(temp7);
    }
  }}
  after -> Declaration, variable, Variable {{
    if (is_equal) history.pop();
  }}

  before -> Declaration, exp, Exp {{
    if (is_equal) {
      Declaration obj = (Declaration) history.peek();
      Object temp8 = obj.get_exp();
      if(temp8==null) { is_equal = false; return; }
      history.push(temp8);
    }
  }}
  after -> Declaration, exp, Exp {{
    if (is_equal) history.pop();
  }}

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

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

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

  before Inte {{
    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 temp9 = host.get_ident();
    Object temp10 = ((Variable) obj).get_ident();
    if(temp9 == null && temp10 == null) {}
    else if(temp9 == null ||
            temp10 == null ||
            !temp9.equals(temp10)) { is_equal = false; return; }
  }}

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

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

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

  before -> Compound, arg1, Exp {{
    if (is_equal) {
      Compound obj = (Compound) history.peek();
      Object temp11 = obj.get_arg1();
      if(temp11==null) { is_equal = false; return; }
      history.push(temp11);
    }
  }}
  after -> Compound, arg1, Exp {{
    if (is_equal) history.pop();
  }}

  before -> Compound, op, Op {{
    if (is_equal) {
      Compound obj = (Compound) history.peek();
      Object temp12 = obj.get_op();
      if(temp12==null) { is_equal = false; return; }
      history.push(temp12);
    }
  }}
  after -> Compound, op, Op {{
    if (is_equal) history.pop();
  }}

  before -> Compound, arg2, Exp {{
    if (is_equal) {
      Compound obj = (Compound) history.peek();
      Object temp13 = obj.get_arg2();
      if(temp13==null) { is_equal = false; return; }
      history.push(temp13);
    }
  }}
  after -> Compound, arg2, Exp {{
    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 Op {{
    Object obj = history.peek();
    is_equal = is_equal && obj.getClass().equals(host.getClass());
    if(!is_equal) return;
  }}

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

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

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

  before -> Assignment, variable, Variable {{
    if (is_equal) {
      Assignment obj = (Assignment) history.peek();
      Object temp14 = obj.get_variable();
      if(temp14==null) { is_equal = false; return; }
      history.push(temp14);
    }
  }}
  after -> Assignment, variable, Variable {{
    if (is_equal) history.pop();
  }}

  before -> Assignment, exp, Exp {{
    if (is_equal) {
      Assignment obj = (Assignment) history.peek();
      Object temp15 = obj.get_exp();
      if(temp15==null) { is_equal = false; return; }
      history.push(temp15);
    }
  }}
  after -> Assignment, exp, Exp {{
    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 -> IfStat, exp, Exp {{
    if (is_equal) {
      IfStat obj = (IfStat) history.peek();
      Object temp16 = obj.get_exp();
      if(temp16==null) { is_equal = false; return; }
      history.push(temp16);
    }
  }}
  after -> IfStat, exp, Exp {{
    if (is_equal) history.pop();
  }}

  before -> IfStat, thePart, Block {{
    if (is_equal) {
      IfStat obj = (IfStat) history.peek();
      Object temp17 = obj.get_thePart();
      if(temp17==null) { is_equal = false; return; }
      history.push(temp17);
    }
  }}
  after -> IfStat, thePart, Block {{
    if (is_equal) history.pop();
  }}

  before -> IfStat, elsePart, Block {{
    if (is_equal) {
      IfStat obj = (IfStat) history.peek();
      Object temp18 = obj.get_elsePart();
      if(temp18==null) { is_equal = false; return; }
      history.push(temp18);
    }
  }}
  after -> IfStat, elsePart, Block {{
    if (is_equal) history.pop();
  }}

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

  before -> WhileStat, exp, Exp {{
    if (is_equal) {
      WhileStat obj = (WhileStat) history.peek();
      Object temp19 = obj.get_exp();
      if(temp19==null) { is_equal = false; return; }
      history.push(temp19);
    }
  }}
  after -> WhileStat, exp, Exp {{
    if (is_equal) history.pop();
  }}

  before -> WhileStat, block, Block {{
    if (is_equal) {
      WhileStat obj = (WhileStat) history.peek();
      Object temp20 = obj.get_block();
      if(temp20==null) { is_equal = false; return; }
      history.push(temp20);
    }
  }}
  after -> WhileStat, block, Block {{
    if (is_equal) history.pop();
  }}

  before WhileStat {{
    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 temp21 = host.get_copy();
    Object temp22 = ((CopyVisitor) obj).get_copy();
    if(temp21 == null && temp22 == null) {}
    else if(temp21 == null ||
            temp22 == null ||
            !temp21.equals(temp22)) { 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 -> Declaration_List, first, Nonempty_Declaration_List {{
    if (is_equal) {
      Declaration_List obj = (Declaration_List) history.peek();
      Object temp23 = obj.get_first();
      if(temp23==null) { is_equal = false; return; }
      history.push(temp23);
    }
  }}
  after -> Declaration_List, first, Nonempty_Declaration_List {{
    if (is_equal) history.pop();
  }}

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

  before -> Statement_NList, first, Nonempty_Statement_NList {{
    if (is_equal) {
      Statement_NList obj = (Statement_NList) history.peek();
      Object temp24 = obj.get_first();
      if(temp24==null) { is_equal = false; return; }
      history.push(temp24);
    }
  }}
  after -> Statement_NList, first, Nonempty_Statement_NList {{
    if (is_equal) history.pop();
  }}

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

  before -> Nonempty_Declaration_List, it, Declaration {{
    if (is_equal) {
      Nonempty_Declaration_List obj = (Nonempty_Declaration_List) history.peek();
      Object temp25 = obj.get_it();
      if(temp25==null) { is_equal = false; return; }
      history.push(temp25);
    }
  }}
  after -> Nonempty_Declaration_List, it, Declaration {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_Declaration_List, next, Nonempty_Declaration_List {{
    if (is_equal) {
      Nonempty_Declaration_List obj = (Nonempty_Declaration_List) history.peek();
      Object temp26 = obj.get_next();
      if(temp26==null) { is_equal = false; return; }
      history.push(temp26);
    }
  }}
  after -> Nonempty_Declaration_List, next, Nonempty_Declaration_List {{
    if (is_equal) history.pop();
  }}

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

  before -> Nonempty_Statement_NList, it, Statement {{
    if (is_equal) {
      Nonempty_Statement_NList obj = (Nonempty_Statement_NList) history.peek();
      Object temp27 = obj.get_it();
      if(temp27==null) { is_equal = false; return; }
      history.push(temp27);
    }
  }}
  after -> Nonempty_Statement_NList, it, Statement {{
    if (is_equal) history.pop();
  }}

  before -> Nonempty_Statement_NList, next, Nonempty_Statement_NList {{
    if (is_equal) {
      Nonempty_Statement_NList obj = (Nonempty_Statement_NList) history.peek();
      Object temp28 = obj.get_next();
      if(temp28==null) { is_equal = false; return; }
      history.push(temp28);
    }
  }}
  after -> Nonempty_Statement_NList, next, Nonempty_Statement_NList {{
    if (is_equal) history.pop();
  }}

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

  return boolean {{ is_equal }}
}