From: Christoph <chr_mail@...>
Date: 2005-05-16T10:21:17+09:00
Subject: Re: Bug printing classes - Re: infinite number of singleton_classes

David A. Black schrieb:

> :
>
> Having a subclass able to call its superclass's singleton (class)
> methods is, as far as I know, the only case where one object can call
> another's singleton methods.  This arrangement seems to disappear in
> the case of singleton classes of singleton classes... but at least it
> disappears consistently (i.e., even in the case of "Klass" above).

It also works if the subclass is an ordinary singleton class of an
instance of the superclass.

> Or something.  In practical terms there's probably not much mileage to
> be had out of these.

True - but when there is very little mileage why not simply disallow them in
the first place.

As a side note the class Klass lends itself naturally as the mother of all
singleton classes - i.e. "pouch == Klass" - a problem with this idea is that
we currently have Class <  Module < Object.

/Christoph