Re: [Vala] Fwd: Re: GenericArray problem

[Andy Lees <andrewl oz gmail com>]

Thanks Daniel, and I agree an empty subclass of a generic mostly works -
but not with GenericArray for some reason.  A direct specialisation of
GenericArray works fine, but if one creates a subclass as indicated, the C
comipler error appears in the compilation of the subclass definition.

I wonder if anyone has suggestions as to why GenericArray should
demonstrate this behaviour?

Also I note that the doco for GenericArray indicates that it takes a
defaulted initial size parameter, but it appears that it just ain't so -
giving an initial size causes a compilation error on too many args.

On Sat, Oct 17, 2015 at 11:58 PM, Daniel Espinosa <esodan gmail com> wrote:

> ---------- Mensaje reenviado ----------
> De: "Daniel Espinosa" <esodan gmail com>
> Fecha: oct. 17, 2015 7:58 AM
> Asunto: Re: [Vala] GenericArray problem
> Para: "Andy Lees" <andrewl oz gmail com>
> Cc:
>
> In LibreSCL (www.librescl.org) I just declare an empty class derived from
> a
> generic one, this makes to call
>
> var a = new Intclass ();
>
> Just works.
>
> If you want a binding friendly class definition you should define your own
> get/set methods returning the actual value type not a generic, as in:
>
>
> https://github.com/powerwaremediacore/librescl/blob/master/librescl/tDA.vala
>
> I plan to add iterator methods to collections, this will allow bindings to
> use them on loops. Because we relay on Gee, its iterators are generic
> making hard/impossible to use on GObject Introspection bindings.
> El oct. 16, 2015 6:22 PM, "Andy Lees" <andrewl oz gmail com> escribió:
>
> > Hi,
> >
> > If I declare a derived class of GenericArray, like so:
> >
> > public class IntArray : GenericArray<int> {
> >   public IntArray() {
> >   }
> > }
> >
> > I get a gcc error, like so:
> > /tmp/a.vala.AH856X.c: In function ‘int_array_new’:
> > /tmp/a.vala.AH856X.c:66:2: error: too few arguments to function
> > ‘g_ptr_array_new_with_free_func’
> >   self = (IntArray*) g_ptr_array_new_with_free_func ();
> >
> > whereas with Array (for example) it just works.
> >
> > Is there something I'm doing wrong, or is this a bug?
> >
> > Using Vala 0.30.0
> >
> > Regards,
> >
> > Andrew Lees
> > _______________________________________________
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