/// <summary>
/// calls iterator for drill down and manages its return path via a stack
/// </summary>
/// <param name="istate"></param>
/// <returns></returns>
private bool Process(IteratorState istate)
{
// stack and one-way (drill down) recursion:
IEnumerator <ISubsumptionTask> iterator2 = this.iterate(istate.iterator);
if (iterator2 == null)
{
istate.iterator = istate.stack.Count > 0 ? istate.stack.Pop() : null;
}
else if (iterator2 != istate.iterator)
{
istate.stack.Push(istate.iterator);
istate.iterator = iterator2;
}
return(istate.iterator != null);
}
/// <summary>
/// calls iterator for drill down and manages its return path via a stack
/// </summary>
/// <param name="istate"></param>
/// <returns></returns>
private bool Process(IteratorState istate)
{
// stack and one-way (drill down) recursion:
IEnumerator<ISubsumptionTask> iterator2 = this.iterate(istate.iterator);
if (iterator2 == null)
{
istate.iterator = istate.stack.Count > 0 ? istate.stack.Pop() : null;
}
else if (iterator2 != istate.iterator)
{
istate.stack.Push(istate.iterator);
istate.iterator = iterator2;
}
return istate.iterator != null;
}