On Fri, Mar 2, 2018 at 9:19 PM, Hernán Morales Durand <
hernan.mora...@gmail.com> wrote:
> Hi Siemen
>
> IIRC this was known as "wide classes", there is some paper about it.
>
Thanks for the pointer! I found
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.31.4708 but no
Pharo implementati
On Fri, Mar 2, 2018 at 9:21 PM, Esteban A. Maringolo
wrote:
> "Castings" are aliens in the Smalltalk world, although there is a
> #become*: method family, I would discourage you from using it as an
> alternative unless you really need to do it.
>
Ok, thanks. I think this use case is specific eno
On Fri, Mar 2, 2018 at 9:08 PM, Stephan Eggermont wrote:
> Siemen Baader wrote:
> >
> > What else could I do, apart from removing the element from its tree,
> > creating a new (subclass) instance and then putting this element in place
> > of the old one? Some #perform or `super` magic..?
>
>
Use
"Castings" are aliens in the Smalltalk world, although there is a
#become*: method family, I would discourage you from using it as an
alternative unless you really need to do it.
If your use case is that concrete, I'd do something like:
`ILHTMLBuilderElement fromXMLElement: anXMLElement`
Then al
Hi Siemen
IIRC this was known as "wide classes", there is some paper about it.
Cheers,
Hernán
2018-03-02 15:45 GMT-03:00 Siemen Baader :
> Hi all,
>
> it seems like we cannot cast the class of object to its subclass if that
> subclass has had new instance variables added to it:
>
> http://forum.
Siemen Baader wrote:
>
> What else could I do, apart from removing the element from its tree,
> creating a new (subclass) instance and then putting this element in place
> of the old one? Some #perform or `super` magic..?
Use composition? Generate accessing code where necessary.
Is this very pe
Hi all,
it seems like we cannot cast the class of object to its subclass if that
subclass has had new instance variables added to it:
http://forum.world.st/changing-the-class-of-an-existing-object-to-a-subclass-td4239041.html
But I (think) I need it - I'm transforming a DOM tree from XMLHTMLPars
