From: Brian Candler <B.Candler@...>
Date: 2002-11-04T08:51:01+09:00
Subject: Re: Thoughts on Ruby

On Mon, Nov 04, 2002 at 06:44:46AM +0900, Enric Lafont wrote:
> You can...
> 
> class TrueClass
>  def and (anArgument)
>    return "hello"
>  end
> end
> 
> I've redefined the and, it does not work, but it does not generate any 
> warning or error...

I don't think you have redefined 'and', you have just added a method called
'and' to TrueClass.

At least, that's the case in 1.6.7. Before adding your method above, true
does not have an 'and' method:

irb(main):001:0> true.and(false)
NameError: undefined method `and' for true
        from (irb):1
irb(main):002:0> true and false
false

Regards,

Brian.