struct DirIterator
{
private:
    RefCounted!(DirIteratorImpl, RefCountedAutoInitialize.no) impl;
    this(string pathname, SpanMode mode, bool followSymlink)
    {
        impl = typeof(impl)(pathname, mode, followSymlink);
    }
public:
    @property bool empty(){ return impl.empty; }
    @property DirEntry front(){ return impl.front; }
    void popFront(){ impl.popFront(); }
    int opApply(int delegate(ref string name) dg)
    {
        writeln("we're in oppapply");
        foreach(DirEntry v; impl.refCountedPayload)
        {
            string s = v.name;
            if(dg(s))
                return 1;
        }
        return 0;
    }
    int opApply(int delegate(ref DirEntry name) dg)
    {
        writeln("we're in oppapply");
        foreach(DirEntry v; impl.refCountedPayload)
            if(dg(v))
                return 1;
        return 0;
    }
}