Ruby method chain

class A
  def m1
    p 'm1'
  end

  def m2
    p 'm2'
  end
end

class Object
  def chain
    o = Object.new
    o.instance_variable_set(:@t, self)
    def o.method_missing(name, *args)
      @t.__send__ name, *args
      self
    end
    o
  end
end

A.new.chain.m1.m2