public override TraversalBranch Next(TraversalContext metadata)
{
TraversalBranch result = null;
while (result == null)
{
if (_current == null)
{
_current = _superNodes.RemoveFirst();
if (_current == null)
{
return(null);
}
}
else if (_current.expanded() > 0 && _current.expanded() % _threshold == 0)
{
_superNodes.AddLast(_current);
_current = _current.parent();
continue;
}
TraversalBranch next = _current.next(_expander, metadata);
if (next == null)
{
_current = _current.parent();
continue;
}
_current = next;
result = _current;
}
return(result);
}
