Re: [Vala] Floating references

[Luca Bruno <lethalman88 gmail com>]

On Tue, May 15, 2012 at 1:21 PM, Alberto Mardegan <
alberto mardegan canonical com> wrote:

> ========
>    [ CCode ( returns_floating_reference = true ) ]
>    public override unowned Gtk.Widget build_widget () {
>        return new Gtk.Label ("Hello world!");
>    }
> ========
>
> but the code doesn't compile: "Return value transfers ownership but
> method return type hasn't been declared to transfer ownership". If I
> introduce a member variable to hold the GtkWidget then it works, but the
> generated C code still calls g_object_ref_sink().
>
> It seems that the "returns_floating_reference" does nothing, or I didn't
> understand how to use it?

The return type must be still owned.

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