compile!

# File actionpack/lib/action_view/renderable.rb, line 65
      def compile!(render_symbol, local_assigns)
        locals_code = local_assigns.keys.map { |key| "#{key} = local_assigns[:#{key}];" }.join

        code = compiled_source
        if code.sub!(/\A(#.*coding.*)\n/, '')
          encoding_comment = $1
        elsif defined?(Encoding) && Encoding.respond_to?(:default_external)
          encoding_comment = "#coding:#{Encoding.default_external}"
        end

        source = "def \#{render_symbol}(local_assigns)\nold_output_buffer = output_buffer;\#{locals_code};\#{code}\nensure\nself.output_buffer = old_output_buffer\nend\n"

        if encoding_comment
          source = "#{encoding_comment}\n#{source}"
          line = -1
        else
          line = 0
        end

        begin
          ActionView::Base::CompiledTemplates.module_eval(source, filename, line)
        rescue Errno::ENOENT => e
          raise e # Missing template file, re-raise for Base to rescue
        rescue Exception => e # errors from template code
          if logger = defined?(ActionController) && Base.logger
            logger.debug "ERROR: compiling #{render_symbol} RAISED #{e}"
            logger.debug "Function body: #{source}"
            logger.debug "Backtrace: #{e.backtrace.join("\n")}"
          end

          raise ActionView::TemplateError.new(self, {}, e)
        end
      end