no size yet for forward reference for nested structures

[qqiang via Digitalmars-d]

On Wednesday, 14 January 2015 at 08:31:08 UTC, bearophile wrote:
> qqiang:
>
>> I've googled and found no straightforward solution to this 
>> issue. The how can I modify my code to eliminate this error?
>
> Your code gives me a different error (Error: PowerHeap!int is 
> used as a type).
>
> What if you replace the SList with a dynamic array?
>
> Bye,
> bearophile

Thanks for your reply.

I'm sorry that I've provided wrong code. This is the exact code:

-------------------------------------------------------------------

template PowerHeap(T) {
     import std.container : SList;

     private alias PowerForest = SList!PowerNode;

     private final class PowerNode {
         private {
             T payload_;
             uint rank_;
             PowerForest children_;
         }
     }

     final class PowerHeap {
         private {
             PowerNode top_;
             PowerForest forest_;
             uint size_;
         }
     }
}

unittest {
     PowerHeap!int h;
}

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My compiler is v2.066.1