From: "T. Onoma" <transami@...>
Date: 2003-12-17T21:53:01+09:00
Subject: Re: UnboundMethods Useless?

On Wednesday 17 December 2003 01:17 pm, Chad Fowler wrote:
> On Wed, 17 Dec 2003, T. Onoma wrote:
>
> # Ah ha! I see, by putting the method in Object you get a sort-of universal
> # method since everthing is an Object. Nice. Makes me wonder why the class
> # restiriction exists at all then.
> #
>
> Which class restriction?

irb(main):001:0> class A
irb(main):002:1> def x
irb(main):003:2> print "Y"
irb(main):004:2> end
irb(main):005:1> end
=> nil
irb(main):006:0> class B
irb(main):007:1> end
=> nil
irb(main):008:0> u = A.instance_method(:x)
=> #<UnboundMethod: A#x>
irb(main):009:0> u.bind(B)
TypeError: bind argument must be an instance of A
        from (irb):9:in `bind'
        from (irb):9

-- 
T.