around_proc

# File actionpack/lib/action_controller/filters.rb, line 407
        def around_proc
          Proc.new do |controller, action|
            method.before(controller)

            if controller.send!(:performed?)
              controller.send!(:halt_filter_chain, method, :rendered_or_redirected)
            else
              begin
                action.call
              ensure
                method.after(controller)
              end
            end
          end
        end