Re: [Vala] bah! protected indeed! Re: structs unions and types

[Frederik <scumm_fredo gmx net>]

Sam Liddicott schrieb:
> * Jared Moore wrote, On 23/06/08 13:27:
> > Hi Sam,
> >
> > I'm having trouble understanding exactly what you are trying to access
> > where. Would you please be able to send a complete and minimal test
> > case, i.e. a standalone program which is as small as possible and
> > demonstrates the problem.
> >   
> sorry; I'm confusing my larger design problem with smaller technical
> problems and it makes it hard to see what the specific complaint is.
>
> here is a small file; t.vala, compile it with:
>   valac --pkg gtk+-2.0 t.vala
>
> The problem is that Subclass cannot access protected member "widgets" of
> the Superclass.
>
> sam mojojojo:~/projects/vala/phoneui/src$ valac --pkg gtk+-2.0 t.vala
> t.vala:13.5-13.16: error: Access to private member `window_widgets.blah'
> denied
>     widgets.blah=null;
>     ^^^^^^^^^^^^
> Compilation failed: 1 error(s), 0 warning(s)
>
>
> The widgets member is declared in the .h file (therefore public-ish),
> but vala still call's it private.
>
>
> using Gtk;
>
> protected struct window_widgets {
>     Gtk.Object blah;
> }
>
> public class Superclass : Gtk.Object {
>     protected window_widgets widgets;
> }
>
> public class Subclass : Superclass {
>   construct {
>     widgets.blah=null;
>   }
> }

You have to make the field blah of the struct public or at least
protected:

protected struct window_widgets {
    public Gtk.Object blah;
}

...


Regards,

Frederik