# File xapian.rb, line 307
    def top_values(maxvalues)
      Xapian._safelyIterate(self._dangerous_top_values_begin(maxvalues),
                            self._dangerous_top_values_end(maxvalues)) { |item|
        Xapian::Term.new(item.term, 0, item.termfreq)
      }
    end