# File lib/sinatra/tilt.rb, line 746
746:     def evaluate(scope, locals, &block)
747:       @output ||= ::CoffeeScript::compile(data, options)
748:     end

     # File lib/sinatra/tilt.rb, line 737
737:     def initialize_engine
738:       return if defined? ::CoffeeScript
739:       require_template_library 'coffee-script'
740:     end

     # File lib/sinatra/tilt.rb, line 742
742:     def prepare
743:       @output = nil
744:     end