Re: [Vala] I'm missing Java's anonymous classes

[Nor Jaidi Tuah <norjaidi tuah ubd edu bn>]

> The compiled code is something like this (from memory):
>
>    self = uazu_win_widget_construct(uazu_win_display_relayout_imp, self);
>
> i.e. the delegate is a dual-pointer (func, target), with 'self' as the
> second part.  But 'self' hasn't yet been initialised, because the
> widget constructor call hasn't yet been made, so NULL is passed.

This is interesting. I can't blame the vala developers
for missing this one (or perhaps already considering
and dismissing it). Consider directly constructing a Widget
accepting its own method as a delegate:

  var x = new Widget (x.foo !!!!????);

> There is no way that the Vala compiler can make this work, as far as I
> can see.  A delegate which depends on 'self' can never be passed to a
> constructor.

I think this can be fixed a using a separate alloc step
(like in objective-c?).

hand
Nor Jaidi Tuah