在Ruby中覆盖attr_ *方法

例：

class A
  def x
    "First definition of x"
  end

  def x
    "Second definition of x"
  end
end

test = A.new
test.x #returns "Second definition of x"

根据上面的结果,我很好奇是否可以使用我自己的(随机)定义覆盖类方法attr_accessor.这就是我的想法：

class Dummy
  attr_accessor :test

  def self.attr_accessor(method_name)
    puts "Overwrite the default functionality of attr_accessor by printing this text instead."
  end
end

d = Dummy.new
d.test #not sure why this returns nil instead of putting my message
Dummy.attr_accessor(test) #fails because of ArgumentError: wrong number of arguments (0 for 2..3)

对于上面的两个例子,我希望通过修补并提出问题来更好地理解Ruby以获得洞察力.