public int position() { var r = _parent?.position() ?? 0; for (var i = 0; i < _bpos; i++) { r += (_bucket.Slot(i).Item2 is IBucket b)?b.Total() : 1; } return(r); }
internal SDictBookmark(SBookmark <K, V> bmk) : base(bmk.position()) { _bmk = bmk; }