Re: [Vala] Array as big as an enum

[Andy Lees <andrewl oz gmail com>]

You can access them as strings: Foo.ELEMENT.to_string() (or any Foo-typed
expression).  The default result may be a bit clunky, but very useful
nevertheless.  Add you own to_string if you want to get fancy.

On Thu, Sep 1, 2016 at 3:51 AM, rastersoft <raster rastersoft com> wrote:

> El 31/08/16 a las 17:20, Al Thomas escribió:
> > ----- Original Message -----
> >
> > > From: Evan Nemerson <evan coeus-group com>
> > > Sent: Tuesday, 30 August 2016, 17:11
> > > Subject: Re: [Vala] Array as big as an enum
> > >
> > > On Mon, 2016-08-29 at 23:47 +0200, rastersoft wrote:
> > > >  Sorry, I found how to do that:
> > > >
> > > >  int[] blah = new int[LAST_ELEMENT];
> > > If you want to avoid having a LAST_ELEMENT value, something like this
> > > will also work:
> > >
> > >     ((GLib.EnumClass) typeof(Foo).class_ref ()).n_values
> > >
> > > I'm not necessarily advocating it, but if you really want to keep your
> > > API clean it's an option.
> >
> > This gets the GType of Foo, instantiates it by increasing the ref count,
> > casts it to EnumClass and then uses the n_values field.
> >
> > If someone was to add syntax support for this for both EnumClass and
> > FlagsClass, what would be the best way for this to look?
> >
> > a) Explicit instantiation of the Foo EnumClass:
> >
> > var a = new Foo ();
> > print ("%i", a.n_values);
> >
> > b) Implicit access to EnumClass methods and fields:
> > print ("%i", Foo.v_values);
>
> The B one sounds better, I think. Even more: it would be great to be
> able to access to the enums as strings too.
>
> --
> Nos leemos
>                          RASTER    (Linux user #228804)
> raster rastersoft com              http://www.rastersoft.com
>
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