From: "David A. Black" <dblack@...>
Date: 2004-07-08T03:56:03+09:00
Subject: Re: Class#=== has interesting results

Hi --

On Thu, 8 Jul 2004, Charles Comstock wrote:

> Mauricio Fern�ndez wrote:
> 
> > On Wed, Jul 07, 2004 at 04:22:36PM +0900, Charles Comstock wrote:
> > 
> >>Why does this happen?
> >>
> >>class A
> >>end
> >>
> >>A == A		#1 => true
> >>A === A		#2 => false
> >>
> >>But 2 doesn't make any sense to me, why doesn't an A match another A? 
> >>Is this just something that slipped through or is there a specific 
> >>reason for this?
> > 
> > 
> > A is not an instance of A; see the ri info for Module#===.
> > 
> 
> At what point does it cause trouble for it to also return true if the 
> class matches?  

At the point where you call it :-) It can't do both; there would be no
way to interpret the result:

  case s
    when String ...  # what do you do here? print it? instantiate it?


David

-- 
David A. Black
dblack@wobblini.net