I can't seem to find any docs about this, and I'm too thick to understand it.

for example:

use(context) in (GL gl) {    draw(gl);}what the hell is this? How does it work? Why would one wan't it? etc...Explain it to me like I'm a retard, because I am. As far as I understand, "context" in this case is a delegate, which has gl as "in" and.. now what?thanks

dominik wrote:
> I can't seem to find any docs about this, and I'm too thick to understand it.
> 
> for example:
> 
> use(context) in (GL gl) {    draw(gl);}what the hell is this? How does it work? Why would one wan't it? etc...Explain it to me like I'm a retard, because I am. As far as I understand, "context" in this case is a delegate, which has gl as "in" and.. now what?thanks
> 
> 

use is presumably a function that returns a temporary struct.

The temporary struct defines opIn.

The (GL gl) { } is a delegate literal that takes a GL parameter.

So this code calls the temporary struct's opIn with a (void?) delegate(GL).

Hope it helps.

 --downs

On Tue, 05 Feb 2008 13:23:24 +0100, downs wrote:
> use is presumably a function that returns a temporary struct.
> 
> The temporary struct defines opIn.
> 
> The (GL gl) { } is a delegate literal that takes a GL parameter.
> 
> So this code calls the temporary struct's opIn with a (void?)
> delegate(GL).

so basically all of this "in" and delegate literal is something like a fancy callback?

dominik wrote:
> On Tue, 05 Feb 2008 13:23:24 +0100, downs wrote:
>> use is presumably a function that returns a temporary struct.
>>
>> The temporary struct defines opIn.
>>
>> The (GL gl) { } is a delegate literal that takes a GL parameter.
>>
>> So this code calls the temporary struct's opIn with a (void?)
>> delegate(GL).
> 
> so basically all of this "in" and delegate literal is something like a fancy callback?
> 
Basically, yes. :)

I love D, among other things, for its ability to easily declare and pass around small snippets of behavior, i.e. delegate literals :)

 --downs