At 7:42 AM +0100 4/13/04, Piers Cawley wrote:
Dan Sugalski <[EMAIL PROTECTED]> writes:

At 6:53 PM +0100 4/8/04, Mark Sparshatt wrote:
I've got a couple of questions about Atrributes in Parrot.

 PDD15 says that both classes and objects have a list of attributes and
 it is possible to add or remove attributes to a class but not an
 object.

 Am I right in thinking that the attribute list for an object is just a
 copy of the attribute list for the class, which is used to store the
 objects values?

 It seems that for Ruby instance variables can be modelled using
 attributes, but I couldn't see any way of handling class
 variables. So, what is the recommended way of handling them?

First, one takes the bat labeled "Metaclasses" and smacks the designer in the head with it. Then, once enlightenment has hit, we implement metaclasses and you add class variables as new attributes on a class' metaclass. I think.

Enlightenment *has* hit then?

I think so. Or I could be coming down with the flu--it's often difficult for me to tell the difference. :)


> Alternately you can stick 'em in as plain variables in the class
 namespace, which is probably the right answer for the moment, though not
 for the long run.

I already (sort of) think of classes and objects as being 'a bit like namespaces', so that makes a certain kind of sense.

I think this is actually the right answer for class variables, but I'm not sure as yet.
--
Dan


--------------------------------------"it's like this"-------------------
Dan Sugalski                          even samurai
[EMAIL PROTECTED]                         have teddy bears and even
                                      teddy bears get drunk

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