to_s

# File lib/uri/generic.rb, line 1454
    def to_s
      str = ''
      if @scheme
        str << @scheme
        str << ':'
      end

      if @opaque
        str << @opaque

      else
        if @registry
          str << @registry
        else
          if @host
            str << '//'
          end
          if self.userinfo
            str << self.userinfo
            str << '@'
          end
          if @host
            str << @host
          end
          if @port && @port != self.default_port
            str << ':'
            str << @port.to_s
          end
        end

        str << path_query
      end

      if @fragment
        str << '#'
        str << @fragment
      end

      str
    end