hi there. could find any answer online: when will inline classes be stable?

looking for coroutines tutorial with out android crap!

is coroutines are thread based or async/await based? as its coroutines so there is cooperation over routines but i can achieve concurrency via single thread similar to nodejs.

would you place small variable wrapper in a dedicated file?

data class Progress(val progress: Int, val max: Int)

it's a function param in one of the services and only two more services will ever have to use it

Looks like a bug to me. Is it a bug or I am missing something?

coroutine are really confusing

will coroutine use single thread model or multi thread model behind the scene?

small investigation: what is your most hateful Kotlin feature, from design point? and why? I go first:

lateinit

, only can be a

var

instead of

val

. and perhaps

companion object

, it's a good idea, but i think the syntax is not very good.(though i think i can't come up with a better design 😶)

Basically, how do i test a function like this

fun foo(callback){
  GlobalScope.launch {
    val x = async {//}.await()
    callback(x)
  }
}

//Test
@Test
`test that we can test`(){
   //i should be able to test that callback is called with value x
}

however

class Test{}
 class Another {
   fun <E: Any> test2(test: E) = test.test()
   fun <E: Any> E.test() = 
     println(javaClass.simpleName)
 }
 Another().test2(
   Test()
 )

prints Test

class Test{}
 class Another {
   fun <E: Any> test2(test: E) = test.test()
   fun <E: Any> E.test() = 
     println(this.javaClass.simpleName)
 }
 Another().test2(
   Test()
 )

prints Test

is there another way I get a

CharArray

from an

IntArray

other than

.let{ ints -> CharArray(ints.size){ints[it].toChar()}

?

Uhm, I wasnt really able to find this online, but. I was wondering what the naming conventions were for Kotlin files. I’ve seen alot of differing things

Hi! Any ideas why this doesn't compile? Hope it's fine to put rx code here. It's a lang question.

fun foo(): Observable<Result<String, String>> =
    Observable.just(Success(""))
        .onErrorResumeNext { t: Throwable -> Failure("") } // Type mismatch: inferred type is Observable<Result.Success<String>!>! but Observable<Result<String, String>> was expected

// where:

sealed class Result<out T, out E> {
    data class Success<out T>(val success: T) : Result<T, Nothing>()
    data class Failure<out E>(val error: E) : Result<Nothing, E>()
}

Hi everybody , When will a coroutine flow be less experimental? If anyone knows please tell me

Is there a way to set default visibility to

internal

via gradle or compiler arg?

i don’t know about you but i feel the quality of the kotlin slack has degraded a lot over several months • asking questions completely unrelated to kotlin • posting in several channels to get more attention • etc. am i the only one to feel that way?

any thoughts on this in intellij IDE Error: Could not find or load main class FooKt Caused by: java.lang.ClassNotFoundException: FooKt

is inline class overhead the same if it is just an inline class with 0 methods and accessors, or if it has 1+ method, accessor, or implements interface?

Hello all, We want to start with Kotlin multiplatform, Can anyone please tell me that what is the scope of third party apps? I mean if there is any third party analytic SDK which currently we are using on native android and IOS, how we will accommodate these SDK'S with Kotlin multiplatform library or project you can say ?

Hello everyone. I'm trying to create an abstract kafka consumer with kotlin, with no luck. If anyone can help: https://stackoverflow.com/questions/59950147/make-na-abstraction-to-kafka-consumer-using-ktor-and-kotlin

Would someone give me an example how to get timezone offset in milliseconds?

Why can't I take out the subclasses of a sealed type outside of the class definition in script files, like you can do with normal Kotlin files?

Hi. I'm a Kotlin newbie and interested in hearing is it possible to have an utility to deep-merge two data class instances of same type? Failed on inline + recursion...

This message was deleted.

Running BeakerX (Jupyter Notebook w/ Kotlin support) I find this warn when the Kotlin kernel starts:

WARN: Failed to initialize native filesystem for Windows
java.lang.RuntimeException: Could not find installation home path. Please make sure bin/idea.properties is present in the installation directory.
at <http://org.jetbrains.kotlin.com|org.jetbrains.kotlin.com>.intellij.openapi.application.PathManager.getHomePath(PathManager.java:97) (...)

Looks like a common issue in other projects that is solved using

System.setProperty("<http://idea.io|idea.io>.use.fallback", "true")

or

System.setProperty("idea.use.native.fs.for.win", "false")

called before

KotlinCoreEnvironment.createForProduction

e.g.: https://github.com/arturbosch/detekt/issues/630 Is it something wrong? Anything missing on my side?

any idea about database affairs in kotlin? exposed is gonna kill me... 😣 i think i will turn for dbutils eventually... though i do really like exposed... 😞

In bytecode, does a

suspend fun

only ever return a

java/lang/Object

? Can't seem to make it typed.

FYI: If any of you uses Hazelcast, you might've come to a point where you just need to check what actual data the cluster contains or make a small modification to some entry for either testing or development purposes? No more writing up shell unit test to stop the debugger and use that environment to achieve said tasks. I've written up an easily configurable (via Kotlin DSL) library to provide you a quick and direct access to Hazelcast cluster data via a prebuilt embedded webapp. See the project and example setup here: https://gitlab.com/lt.petuska/hazelcast-explorer Hope this will help to speed up your development/testing (as it surely did ours)! As always, any questions -> DM me.

Morning, anyone who could help me with "tricky" function call ?

What's the conventional wisdom on mockito-kotlin vs MockK? I feel like mockito-kotlin is more intuitive