Daniel A. Steffen wrote:
>  one difference between TclOO and XOTcl that I've run into is the  
>  semantics of class destruction (c.f. script below).
[...]
>  I have no opinion on which of those behaviours is better, indeed I  
>  can see uses for both, so I am wondering if you have thought about  
>  making class destruction configurable/pluggable in TclOO?

Destructors are run before the object command actually gets deleted; I
just checked! Since this is deep inside the complex mess that is traces,
I couldn't tell from what I remembered of the code. Thus, if a class
destructor (well, metaclass destructor I suppose) detaches the
subclasses and instances, they'll survive. That is to say, you can
change the current behaviour entirely through writing Tcl code. I hope
that does the trick for you. :-)

Evidentiary log:
   % package req TclOO
   0.2
   % oo::class create foo {
      destructor {puts [self];[self] spong}
      method spong {} {puts SPONG!}
   }
   ::foo
   % foo create bar
   ::bar
   % bar spong
   SPONG!
   % bar destroy
   ::bar
   SPONG!

Donal.


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