Re: [Vala] [genie] closures in genie

[Klaus Rotter <klaus rotters de>]

Am 08.05.2012 23:58, schrieb diegotoral gmail com:
> Check this, updated, example:
> http://pastebin.com/vRMWHrNp

Thank you for answering. The example goes like this:
        [...]
        var button = new Button.with_label ("Click me")
        button.clicked.connect (clicked_cb)
        add (button)

    def clicked_cb (btn : Button)
        title = "Hello World"
        btn.label = "Hello World"

I don't think that this is a real closure. The idea is, that the 
complete callback is defined inside the connect ( def of callback ) like 
in the old, deprecated example. Is this possible with connect?

-Klaus

> On Tue, May 8, 2012 at 4:37 PM, Klaus Rotter <klaus rotters de
> <mailto:klaus rotters de>> wrote:
>
>     Hello!
>
>     An old (deprecated) way to define closures in genie is e.g:
>
>       var button = new Button.with_label("Click me!")
>       button.clicked += def()
>         button.label = "Thank you"
>
>     However, the compiler throws a warning, that this way is deprecated
>     and recommends 'connect' instead. But, I really can't figure out the
>     syntax connect works. Has anybody an example for this? Thank you!

--
 Klaus Rotter * klaus at rotters dot de * www.rotters.de