private bool ForEachConstraintRecursively(IFunction4 block)
{
IQueue4 queue = new NoDuplicatesQueue(new NonblockingQueue());
IEnumerator constrIter = IterateConstraints();
while (constrIter.MoveNext())
{
queue.Add(constrIter.Current);
}
while (queue.HasNext())
{
QCon constr = (QCon)queue.Next();
bool cancel = (bool)block.Apply(constr);
if (cancel)
{
return(true);
}
IEnumerator childIter = constr.IterateChildren();
while (childIter.MoveNext())
{
queue.Add(childIter.Current);
}
IEnumerator joinIter = constr.IterateJoins();
while (joinIter.MoveNext())
{
queue.Add(joinIter.Current);
}
}
return(false);
}
public object Apply(object obj)
{
QCon constr = (QCon)obj;
IEnumerator joinIter = constr.IterateJoins();
while (joinIter.MoveNext())
{
QConJoin join = (QConJoin)joinIter.Current;
if (join.IsOr())
{
return(true);
}
}
return(false);
}
private void CollectTopLevelJoins(Collection4 joins, QCon constraintWithJoins)
{
IEnumerator i = constraintWithJoins.IterateJoins();
while (i.MoveNext())
{
QConJoin join = (QConJoin)i.Current;
if (!join.HasJoins())
{
if (!joins.ContainsByIdentity(join))
{
joins.Add(join);
}
}
else
{
CollectTopLevelJoins(joins, join);
}
}
}