From: gwtmp01@...
Date: 2005-12-31T06:48:41+09:00
Subject: Re: Fixnums can have instance variables? Cool.


On Dec 30, 2005, at 4:10 PM, Chris Pine wrote:
> I'm not sure what the original author of that was trying to say, but I
> think the real answer is just that, for whatever implementation
> reasons (most likely for the sake of optimization), immediate objects
> can't have singleton methods.

Without thinking too hard about it and without looking at the
source code, I would guess that it is not supported to avoid
the overhead of a method search for individual objects.  You
still have to do the method search for the class and as such
you can extend the class but the search for a per/object
method is avoided.


Gary Wright