<@U9DPCUAB0> Moving discussion to coroutines, othe...

# coroutines

[gildor]

@ursus Moving discussion to coroutines, otherwise too many offoptic for this thread
https://kotlinlang.slack.com/archives/C09222272/p1544765551091900?thread_ts=1544517238.067400&amp;cid=C09222272

[gildor]

Vlastimil Brecka [2 hours ago]
and I also want lazy with arguments from local scope


Andrey Mischenko [35 minutes ago]
@thelgis But all 3 features are just libraries, I don’t think that you need 2.0 for that


Andrey Mischenko [34 minutes ago]

and I also want lazy with arguments from local scope

imo it looks as anti-patern singleton with params. Why do you need this?


Vlastimil Brecka [4 minutes ago]
@gildor basically caching some synchronous calculation for example loading bitmap. Successive calls of the function if need to !! in the else branch, just ugly..

Andrey Mischenko [3 minutes ago]
You don’t need lazy for that also just use coroutines and Deferred (edited)


Vlastimil Brecka [3 minutes ago]
hmm neverheard of it


Vlastimil Brecka [2 minutes ago]
oh cooroutines, nah, its synchronous code


Vlastimil Brecka [2 minutes ago]
val _bitmap = if bitmap == null loadBitmap(some param) else bitmap!!

[gildor]

Just for context

[gildor]

This is exatly what I’m talking about
You can easily of course do exactly the same behavior without coroutines

[gildor]

But worst thing with such primitive is that you never can predict will it be blocking or not, so you cannot even use it for UI or any other non-blocking code

[gildor]

@ursus See what I mean
https://pl.kotl.in/rJq-qallN

[gildor]

This is a way to encapsulate heavy operation and use it safe from any thread