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);
}
private bool HasJoins(QCon con)
{
if (con.HasJoins())
{
return true;
}
IEnumerator childIter = con.IterateChildren();
while (childIter.MoveNext())
{
if (HasJoins((QCon)childIter.Current))
{
return true;
}
}
return false;
}