private void Walk(Tree tree, Tree auxTree)
{
var mi = new TreeIterator(tree, TreeIterator.Order.POSTORDER);
var ai = new TreeIterator(auxTree, TreeIterator.Order.POSTORDER);
TreeEntry m = mi.hasNext() ? mi.next() : null;
TreeEntry a = ai.hasNext() ? ai.next() : null;
int curIndexPos = IndexCounter;
GitIndex.Entry entry = (IndexCounter < _indexMembers.Length) ? _indexMembers[IndexCounter++] : null;
while (((m != null) || (a != null)) || (entry != null))
{
int cmpma = Compare(m, a);
int cmpmi = Compare(m, entry);
int cmpai = Compare(a, entry);
TreeEntry pm = ((cmpma <= 0) && (cmpmi <= 0)) ? m : null;
TreeEntry pa = ((cmpma >= 0) && (cmpai <= 0)) ? a : null;
GitIndex.Entry pi = ((cmpmi >= 0) && (cmpai >= 0)) ? entry : null;
if (pi != null)
{
VisitEntry(pm, pa, pi);
}
else
{
FinishVisitTree(pm, pa, curIndexPos);
}
if (pm != null)
{
m = mi.hasNext() ? mi.next() : null;
}
if (pa != null)
{
a = ai.hasNext() ? ai.next() : null;
}
if (pi != null)
{
entry = (IndexCounter < _indexMembers.Length) ? _indexMembers[IndexCounter++] : null;
}
}
}
private bool Step()
{
if (_tree == null) return false;
if (_sub != null)
{
if (_sub.Step()) return true;
_sub = null;
}
if (_index < 0 && !_hasVisitedTree && _order == Order.PREORDER)
{
_hasVisitedTree = true;
return true;
}
while (++_index < _tree.MemberCount)
{
TreeEntry e = _tree.Members[_index];
if (e is Tree)
{
_sub = new TreeIterator((Tree)e, _order, _visitTreeNodes);
if (_sub.HasNextTreeEntry()) return true;
_sub = null;
continue;
}
return true;
}
if (_index == _tree.MemberCount && !_hasVisitedTree && _order == Order.POSTORDER)
{
_hasVisitedTree = true;
return true;
}
return false;
}
