/** TODO */
  public String toString(LocalVariables lv) {

    String buff = "";

    for (int i = 0; i < lv.maxLocals(); i++) {
      if (buff.length() > 0) buff += ", ";
      Type t = lv.get(i);
      if (t instanceof UninitializedObjectType) buff += "uninitialized-object";
      else buff += t;
    }
    return ("{" + buff + "}");
  }