Allow observable.subscribe(var) when Owner available

[fdietze]

I'd like to sync Observable into RxWriter/Observers:

// with implicit Owner in scope:
val number = Var(0)
Observable.intervalMillis(1000).subscribe(number)

[cornerman]

Just to understand better: You mean, that subscribe on observables should take an implicit owner? I would not like to do that, I think the owner concept is good for the hot variables use-case, but not generally for observables.

You can easily just convert the observable to an Rx and work from there:

Rx.observableSync(Observable.intervalMillis(1000)).subscribe(number)

[fdietze]

Insight from our offline discussion:

Not every Observable can be converted to Rx, because the observable might never trigger. And using a seed can be wrong, because you might not want the subscription to write anything into the target when the observable never triggers.

[cornerman]

closed via #271