// utl_labellist.cpp,v 1.6 2002/07/01 13:49:23 parsons Exp

/*

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 */

// Implementation of a list of union labels.

// NOTE: This list class only works correctly because we use single public
//       inheritance, as opposed to multiple inheritance or public virtual.
//	     It relies on a type-unsafe cast from UTL_List to subclasses, which
//	     will cease to operate correctly if you use either multiple or
//	     public virtual inheritance.

#include "utl_labellist.h"

ACE_RCSID (util, 
           utl_labellist, 
           "utl_labellist.cpp,v 1.6 2002/07/01 13:49:23 parsons Exp")

UTL_LabelList::UTL_LabelList (AST_UnionLabel *s, 
                              UTL_LabelList *cdr)
  : UTL_List(cdr),
	  pd_car_data(s)
{
}

// Get list item.
AST_UnionLabel *
UTL_LabelList::head (void)
{
  return this->pd_car_data;
}

UTL_LabellistActiveIterator::UTL_LabellistActiveIterator (UTL_LabelList *s)
  : UTL_ListActiveIterator (s)
{
}


// Get current item.
AST_UnionLabel *
UTL_LabellistActiveIterator::item (void)
{
  if (source == 0)
    {
      return 0;
    }

  return ((UTL_LabelList *) source)->head ();
}

