class Tilt::HamlTemplate

def prepare
  @options[:filename] = eval_file
  @options[:line] = @line
  if @options.include?(:outvar)
    @options[:buffer] = @options.delete(:outvar)
    @options[:save_buffer] = true
  end
  @engine = ::Haml::TempleEngine.new(@options)
  @engine.compile(@data)
end