prelude: |
  class C
    attr_accessor :x
    def initialize
      @x = nil
    end
    class_eval <<-END
      def ar
        #{'x;'*256}
      end
      def aw
        #{'self.x = nil;'*256}
      end
      def arm
        m = method(:x)
        #{'m.call;'*256}
      end
      def awm
        m = method(:x=)
        #{'m.call(nil);'*256}
      end
    END
  end
  obj = C.new
benchmark:
  attr_reader: "obj.ar"
  attr_writer: "obj.aw"
  attr_reader_method: "obj.arm"
  attr_writer_method: "obj.awm"