# File xapian.rb, line 360
    def top_values(maxvalues, &block)
      Xapian._safelyIterate(self._dangerous_top_values_begin(maxvalues),
                            self._dangerous_top_values_end(maxvalues),
                            lambda { |item| Xapian::Term.new(item.term, 0, item.termfreq) },
                            &block)
    end