# File lib/sprockets/sass/sass_template.rb, line 50
      def evaluate(context, locals, &block)
        @output ||= begin
          @context = context
          ::Sass::Engine.new(data, sass_options).render
        rescue ::Sass::SyntaxError => e
          # Annotates exception message with parse line number
          context.__LINE__ = e.sass_backtrace.first[:line]
          raise e
        end
      end