[chuck-users] cross-referenced classes?

[Robert Poor]

Hi Kas:

My fault for not pointing this out: one contained a reference to the  
other, not an instance.

But even when both are references, ChucK still won't compile it.

Imagine you had a "controller" object that controls an "engine"  
object, but the engine needs a reference back to the controller, e.g.  
to query its state.  This is a standard programming pattern.  Here's  
how I would express it (and lose):
=================
[file: controller.ck]
public class Controller {
	Engine @ engine;
}

[file: engine.ck]
public class Engine {
	Controller @ controller;
}

% chuck controller.ck engine.ck
[controller.ck]:line(2): undefined type 'Engine'
=================
There must be some ChucK-ish idiom that I don't yet understand.

- Rob

On 13 Mar 2009, at 04:35, Kassen wrote:

> Rob;
>
>
> How does one compile cross-referenced classes?
>
> Wait. Let me get this straight; you want a "scratch" to contain a  
> "sniff" and a "sniff" should in turn contain a "scratch"? Yet that  
> "scratch" will contain another "sniff" and that "sniff" will contain  
> a "scratch" and that "scratch" will contain another "sniff" and that  
> "sniff" will contain a "scratch" and that "scratch" will contain  
> another "sniff" and that "sniff" will contain a "scratch" and that  
> "scratch" will contain another "sniff" and that "sniff" will contain  
> a "scratch" and that "scratch" will contain another "sniff" and that  
> "sniff" will contain a "scratch" and that "scratch" will contain  
> another "sniff" and that "sniff" will contain a "scratch" and that  
> "scratch" will contain another "sniff" and that "sniff" will contain  
> a "scratch" and that "scratch" will contain another "sniff" and that  
> "sniff" will contain a "scratch" and that "scratch" will contain  
> another "sniff" and that "sniff" will contain a "scratch" and this  
> will go on forever? Is that correct?
>
> I think I'm going to have to agree with Tom here; you shouldn't do  
> that.
>
> Let's take a step back and look at what you are actually trying to  
> accomplish, practically speaking, and see how we could go about that.
>
> Yours,
> Kas.
>
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