//==============================================
// ------------- Iteration ---------------------
//==============================================
public static TreeIter <TTreeNode> operator ++(TreeIter <TTreeNode> iterator)
{
if (End == iterator)
{
return(End);
}
TreeIterState <TTreeNode> nextState = iterator.State.CreateCopyForNextEvaluation();
TreeIter <TTreeNode> nextIter = new TreeIter <TTreeNode>(nextState, iterator.TraversalParameters);
for (; ;)
{
eNextTraversalMove nextAction = nextIter.DetermineNextAction();
switch (nextAction)
{
case eNextTraversalMove.Process:
nextState.MoveToNext();
nextState.ProcessNextEvaluations();
return(nextIter);
case eNextTraversalMove.ProcessAndPrune:
nextState.MoveToNext();
return(nextIter);
case eNextTraversalMove.SkipAndContinueSearching:
nextState.MoveToNext();
nextState.ProcessNextEvaluations();
continue;
case eNextTraversalMove.PruneAndContinueSearching:
nextState.MoveToNext();
continue;
default:
case eNextTraversalMove.Quit:
return(End);
}
}
}
/// <summary>
/// Basic constructor
/// </summary>
internal TreeIter(TreeIterState <TTreeNode> state, TreeTraversalParameters <TTreeNode> traversalParameters)
{
this.State = state;
this.TraversalParameters = traversalParameters;
}
