Resource Management... Howto?

[Samuel Winchenbach]

downs wrote:
> I've been thinking about a better way to do this.
> How about we (ab)use the GC? That is, each returned resource with the 
> same index contains a pointer to some throwaway object. This object's 
> address is stored together with the AA itself, but encoded somehow 
> (negative? xor with a constant?) so that the GC doesn't find this relation.
> Now, whenever all resources of that type have been deleted, and the GC 
> runs, the object will not have anything obvious pointing towards it 
> anymore; thus, the GC will delete it. Before that, it will call the 
> object's destructor, which, in turn, will delete the object's entry from 
> the AA :)
>  --downs
> 
> PS: I have no idea if that could work; also, you'd be relying on the GC 
> which the spec says _not_ to rely upon. Evil :)
> PPS: Not guaranteed to work. Use at own risk.


Wow, I think that might be a little advanced for me.  I am on 
approximately week 2 of D.   Coming from ANSI C (with a touch of C++) 
this is quite a shock for me.   If you have any example code of this in 
action I would love to see it though :)

Sam