Nested Foreach

[Nick Sabalausky]

"John C" <johnch_atms at hotmail.com> wrote in message 
news:h3poo6$13j4$1 at digitalmars.com...
> Is nesting foreach statements supposed to work? I hit a problem today that 
> I've never encountered before, even though I'm sure I've nested foreach 
> before. Here's an example that illustrates the problem:
>
>
> class Collection {
>
>  int opApply(int delegate(ref Object) a) {
>    return 0;
>  }
>
> }
>
> Object testForeach(Collection level1, Collection level2) {
>  foreach (first; level1) {
>    foreach (second; level2) {
>      return second;
>    }
>  }
>  return null;
> }
>
> void main() {
>  testForeach(new Collection, new Collection);
> }
>
> Error: cannot implicitly convert expression (second) of type object.Object 
> to int
>
> If someone else can repro this, I'll enter it into Bugzilla.
>
> John.

I came across a problem much like that a while back. Does this describe your 
problem?:
http://d.puremagic.com/issues/show_bug.cgi?id=2192

It looks like you're using iterable objects instead of AAs though. If you 
think it seems like basically the same bug, maybe update the ticket to 
indicate the problem is more general than just AAs.