# File lib/memcache.rb, line 669
  def make_cache_key(key)
    if @autofix_keys && (key =~ /\s/ || key_length(key) > 250)
      key = "#{Digest::SHA1.hexdigest(key)}-autofixed"
    end

    if namespace.nil?
      key
    else
      "#{@namespace}#{@namespace_separator}#{key}"
    end
  end