# File lib/sass/selector/sequence.rb, line 52
      def resolve_parent_refs(super_cseq, implicit_parent)
        members = @members.dup
        nl = (members.first == "\n" && members.shift)
        contains_parent_ref = contains_parent_ref?
        return CommaSequence.new([self]) if !implicit_parent && !contains_parent_ref

        unless contains_parent_ref
          old_members, members = members, []
          members << nl if nl
          members << SimpleSequence.new([Parent.new], false)
          members += old_members
        end

        CommaSequence.new(Sass::Util.paths(members.map do |sseq_or_op|
          next [sseq_or_op] unless sseq_or_op.is_a?(SimpleSequence)
          sseq_or_op.resolve_parent_refs(super_cseq).members
        end).map do |path|
          Sequence.new(path.map do |seq_or_op|
            next seq_or_op unless seq_or_op.is_a?(Sequence)
            seq_or_op.members
          end.flatten)
        end)
      end