Another way to implement unicode example in episode 6

The following is the unicode example for demonstrating const_missing hook:

class Module
  original_const_missing = instance_method(:const_missing)

  define_method(:const_missing) do |name|
    if name.to_s =~ /^U([0-9a-fA-F]{4})$/
      [$1.to_i(16)].pack("U*")
    else
      original_const_missing.bind(self).call(name)
    end
  end
end

Just inspired by the question asking the difference between

 class Module; def const_missing; end; end

and

 class Dave;def self.const_missing; end; end 

, i got another implementation for unicode example:

class Object
  def self.const_missing(name)
    if name.to_s =~ /^U([0-9a-fA-F]{4})$/
      [$1.to_i(16)].pack("U*")
    else
      super
    end

  end

end

Seems this behaves same as the original function.