# File lib/inline.rb, line 83
  def self.directory
    directory = File.join(rootdir, ".ruby_inline")
    unless defined? @@directory and directory == @@directory and test ?d, @@directory then
      unless File.directory? directory then
        $stderr.puts "NOTE: creating #{directory} for RubyInline" if $DEBUG
        Dir.mkdir directory, 0700
      end
      Dir.assert_secure directory
      @@directory = directory
    end
    @@directory
  end