If you want to go deeper you can read a survey I wrote some years ago 
on related topic.
www.iam.unibe.ch/~ducasse/      (Publications Joop paper) but the code 
was only tested on VisualWorks

On 23 mars 04, at 09:00, Poster at Kinetium dot Com wrote:

> I am somewhat familiar with the idiom of doing instance specialization 
> by
> overriding "doesNotUnderstand".
>
> Ruby provides a different and more direct way of doing such prototype 
> based
> programming: it simply makes the instance belong to a new (anonymous) 
> class,
> and puts any instance-specific behavior on that class. It provides a 
> syntax
> to define that behavior (since the class is anonymous).
>
> Is there a way to do this in Squeak? I'm a relative Squeak newbie ...
Stef  www.iam.unibe.ch/~ducasse/              [  |  ]
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