From: "Mauricio Fernández" <batsman.geo@...>
Date: 2004-01-20T04:54:29+09:00
Subject: Re: setting instance variable "dynamically"

On Tue, Jan 20, 2004 at 01:55:00AM +0900, Robert Klemme wrote:
> >  it change also the class
> >
> > svg% ruby -e 'b = []; b.instance_eval { def a() puts "array"; end}; b.a'
> > array
> > svg%
> 
> Well, but that is just a consequence of self pointing to another instance.
> You could have achieved the same by doing:
> 
> 17:50:29 [w]: ruby -e 'b = []; b.instance_eval { def self.a() puts
> "array"; end}; b.a'
> array
[...] 
> Am I overlooking something?

Guy is emphasizing the fact that this modifies the *singleton* class.

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