[Xotcl] Re: [Xotcl] Real value of meta-class

From: Kristoffer Lawson <setok_at_fishpool.com>
Date: Mon, 29 Jan 2001 20:18:50 +0200 (EET)

On Mon, 29 Jan 2001, Rick Hedin wrote:

>
> Is there an example where being a metaclass results in different output?

I'm not sure if the question is how metaclasses can be used? Personally
I've been thinking of a package that would transparently allow XOTcl
coders to use ITcl classes as if they were XOTcl classes. For that I would
use a metaclass ITclClass. When creating a clas with that like

ITclClass Foobar

It would search for the actual ITcl class called "Foobar", create an XOTcl
class "Foobar" with a filter installed that redirects everything to the
original ITcl class, and if instantiated does the appropriate work
for the object.

You could probably do this with mixins, but I don't think it would be
as beautiful.

I'm sure others have some interesting uses as well ;-)

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