public static IEnumerable <T> Oscillate <T>(this IEnumerable <T> enumerable, NotifyOscillator <T> oscillator)
{
var enumerator = enumerable.GetEnumerator();
var item = new OscillatorNotityItem <T>(OscillatorNotifyType.Begin, default(T));
oscillator.RaiseNotification(new EventArgs <OscillatorNotityItem <T> >(item));
while (enumerator.MoveNext())
{
T current = enumerator.Current;
item = new OscillatorNotityItem <T>(OscillatorNotifyType.Next, current);
oscillator.RaiseNotification(new EventArgs <OscillatorNotityItem <T> >(item));
yield return(current);
}
item = new OscillatorNotityItem <T>(OscillatorNotifyType.End, default(T));
oscillator.RaiseNotification(new EventArgs <OscillatorNotityItem <T> >(item));
}
public override bool Test(out OscillatorNotityItem <TItemType> currentValue)
{
throw new NotImplementedException();
}