@Override
 public Object getFullName(Env env) {
   if (parameterList == null || parameterList.size() == 0) return selector.getSymbolString();
   else {
     String s = selector.getSymbolString();
     int size = parameterList.size();
     if (size > 0) s = s + " ";
     for (ParameterDec p : parameterList) {
       if (p.getType(env) == null) {
         s = s + NameServer.dynName;
       } else {
         s = s + p.getType(env).getFullName(env);
       }
       if (--size > 0) s = s + ", ";
     }
     return s;
   }
 }