From: Trans <transfire@...>
Date: 2005-04-05T23:19:41+09:00
Subject: Re: - E03b - The Ruby Object Model

First it would appear that your repositioned diagram has an arrow
misdirected --the arrow from Class to (Object). A Class is an Object so
it should be the other way around.

Secondly, there are a number of ways to access metaclasses. Try,

  class Object
    class << self
      # (Object)
    end
  end

Substitute Class, Module or OtherClass for Object. They all should
work. Other means:

  class Object
    def Object.a_method
      # this will be a method of metaclass
    end
    def self.another_method
      # so will this
    end
  end

Realize that a classes' metaclass is the same formalism as an object's
singleton class.