public override void Subscribe(IFlowableSubscriber <T> subscriber)
{
var src = source;
int n = src.Parallelism;
var parent = new ReduceAllSubscription(subscriber, n, reducer);
subscriber.OnSubscribe(parent);
src.Subscribe(parent.subscribers);
}
internal ReduceRailSubscriber(ReduceAllSubscription parent, Func <T, T, T> reducer)
{
this.parent = parent;
this.reducer = reducer;
}
