    # File lib/action_controller/vendor/rack-1.0/rack/request.rb, line 176
        def cookies
          return {}  unless @env["HTTP_COOKIE"]

          if @env["rack.request.cookie_string"] == @env["HTTP_COOKIE"]
            @env["rack.request.cookie_hash"]
          else
            @env["rack.request.cookie_string"] = @env["HTTP_COOKIE"]
            # According to RFC 2109:
            #   If multiple cookies satisfy the criteria above, they are ordered in
            #   the Cookie header such that those with more specific Path attributes
            #   precede those with less specific.  Ordering with respect to other
            #   attributes (e.g., Domain) is unspecified.
            @env["rack.request.cookie_hash"] =
              Utils.parse_query(@env["rack.request.cookie_string"], ';,').inject({}) {|h,(k,v)|
                h[k] = Array === v ? v.first : v
                h
              }
          end
        end