namespace System.Reactive.Joins { internal class ActivePlan<T1, T2, T3, T4, T5, T6, T7, T8> : ActivePlan { private readonly Action<T1, T2, T3, T4, T5, T6, T7, T8> _onNext; private readonly JoinObserver<T1> _first; private readonly JoinObserver<T2> _second; private readonly JoinObserver<T3> _third; private readonly JoinObserver<T4> _fourth; private readonly JoinObserver<T5> _fifth; private readonly JoinObserver<T6> _sixth; private readonly JoinObserver<T7> _seventh; private readonly JoinObserver<T8> _eighth; internal ActivePlan(JoinObserver<T1> first, JoinObserver<T2> second, JoinObserver<T3> third, JoinObserver<T4> fourth, JoinObserver<T5> fifth, JoinObserver<T6> sixth, JoinObserver<T7> seventh, JoinObserver<T8> eighth, Action<T1, T2, T3, T4, T5, T6, T7, T8> onNext, Action onCompleted) : base(onCompleted) { _onNext = onNext; _first = first; _second = second; _third = third; _fourth = fourth; _fifth = fifth; _sixth = sixth; _seventh = seventh; _eighth = eighth; AddJoinObserver(first); AddJoinObserver(second); AddJoinObserver(third); AddJoinObserver(fourth); AddJoinObserver(fifth); AddJoinObserver(sixth); AddJoinObserver(seventh); AddJoinObserver(eighth); } internal override void Match() { if (_first.Queue.Count > 0 && _second.Queue.Count > 0 && _third.Queue.Count > 0 && _fourth.Queue.Count > 0 && _fifth.Queue.Count > 0 && _sixth.Queue.Count > 0 && _seventh.Queue.Count > 0 && _eighth.Queue.Count > 0) { Notification<T1> notification = _first.Queue.Peek(); Notification<T2> notification2 = _second.Queue.Peek(); Notification<T3> notification3 = _third.Queue.Peek(); Notification<T4> notification4 = _fourth.Queue.Peek(); Notification<T5> notification5 = _fifth.Queue.Peek(); Notification<T6> notification6 = _sixth.Queue.Peek(); Notification<T7> notification7 = _seventh.Queue.Peek(); Notification<T8> notification8 = _eighth.Queue.Peek(); if (notification.Kind == NotificationKind.OnCompleted || notification2.Kind == NotificationKind.OnCompleted || notification3.Kind == NotificationKind.OnCompleted || notification4.Kind == NotificationKind.OnCompleted || notification5.Kind == NotificationKind.OnCompleted || notification6.Kind == NotificationKind.OnCompleted || notification7.Kind == NotificationKind.OnCompleted || notification8.Kind == NotificationKind.OnCompleted) _onCompleted(); else { Dequeue(); _onNext(notification.Value, notification2.Value, notification3.Value, notification4.Value, notification5.Value, notification6.Value, notification7.Value, notification8.Value); } } } } }