# File lib/sass/selector.rb, line 129
      def unify(sels)
        name =
          case sels.first
          when Universal; :universal
          when Element; sels.first.name
          else
            return [self] + sels unless namespace.nil? || namespace == ['*']
            return sels unless sels.empty?
            return [self]
          end

        ns, accept = unify_namespaces(namespace, sels.first.namespace)
        return unless accept
        [name == :universal ? Universal.new(ns) : Element.new(name, ns)] + sels[1..-1]
      end