*operation* void collect_terms(Fixed_term_Commalist *terms)
  *wrapper* Cd_graph
    *prefix*
    (@
       adjacencies->collect_terms(terms);
    @)
  *wrapper* Adjacency_Nlist
    *prefix*
    (@
       Adjacency_list_iterator next(*this);
       Adjacency*              each;

       while (each = next())
         each->collect_terms(terms);
    @)
  *wrapper* Adjacency
    *prefix*
    (@
      static Fixed_term * ft = new Fixed_term();
      static Normal*      nt = new Normal();
      static LocalRef*    lr = new LocalRef();

      ft->set_vertex(nt);
      nt->set_vertex(source);
      nt->set_moduleRef(lr);
 
      terms->append((Fixed_term*)ft->g_copy());
    @)