Also, are there any examples for the atomic references being used? This is supposed to help with concurrency right?

@olonho Are there any plans to make some of these Kotlin/native features compatible with other kotlin platforms? i.e. Workers, and thread local objects? I'd also be interested to know if there are any plans to opt-in to kotlin/native threading restrictions on other platforms. If it's better, I could see that being useful as well.

Has anyone here built Kotlin from source? Curious how much disk space is needed, tried building Swift from source and with 62gb free, ran out of disk space :|

Hi! I am trying to do http requests in Kotlin Native in ios jsing nsurlsession. I want to do it synchronously and so am using semaphores. However, when the callback for dataTaskWithRequest ends, I get a bad access error which according to the debugger, is caused due to garbage collection. Even when I comment out the first three lines of the callback lambda, I keep getting the error. Any help would be appreciated.

fun call() : Unit{

    var url = NSURL.alloc()
    url = url?.initWithString("<https://jsonplaceholder.typicode.com/posts/1>")
    var nsrequest = NSMutableURLRequest(url as NSURL)

    nsrequest.HTTPMethod = "GET"

    var this_nsdata : NSData? = null
    var this_nsresponse : NSURLResponse? = null
    var this_nserror : NSError? = null
    var syncer = dispatch_semaphore_create(0)

    var sess = NSURLSession.sharedSession()

    var task = sess.dataTaskWithRequest(nsrequest) { nsdata: NSData?, nsresponse: NSURLResponse?, nserror: NSError? ->
        this_nsdata = nsdata
        this_nsresponse = nsresponse as NSHTTPURLResponse
        this_nserror = nserror


        dispatch_semaphore_signal(syncer)
    }

    task.resume()

    dispatch_semaphore_wait(syncer, DISPATCH_TIME_FOREVER)

    if(this_nserror == null && this_nsdata != null){

        this_nsresponse as NSHTTPURLResponse
        var nsstrobj = NSString.stringWithUTF8String(this_nsdata!!.bytes as CPointer<ByteVar>)
        print(nsstrobj as String)
    }
    else {
        print("whoops")

    }
}

I am trying to use

org.jetbrains.kotlin:kotlin-native-gradle-plugin:0.8

but keep getting the error

Could not find org.jetbrains.kotlin:kotlin-native-shared:0.8

. Attaching full stack of the error...

Hi guys! Noob question about running kotlin-native application via gradle-plugin(build). How can i add arguments for :run task so that they are caught in main method? Tried just adding it under configuration/arguments, and it's caught as task arguments 😞

hey guys, can we use

RxKotlin

in

Kotlin-Native

common module?

Jumping on Bipin’s post above: I want to call a method in kotlin native from iOS, which is going to call a method on an interface defined in kotlin and implemented on the iOS side. This method can perform a network call. Rather than the method in the interface using lambdas/closures, I want to use the

suspend

keyword. If you use the suspend keyword, then all methods that call this method also need to be marked with suspend. Which means that the method that is called from the iOS side is marked with suspend. But when I compile the kotlin framework using konan, the methods vanish from the Obj-c framework. Is this because coroutines are experimental? Will this be supported? I’ve got an example project where you can see this happening: https://github.com/yusufcareem/MockKNProject

The K/N 0.8 blog post says:

Other important JetBrains-provided libraries, like kotlinx.coroutines, kotlinx.serialization, and Ktor HTTP client are getting experimental Kotlin/Native support, which means it is possible to write an iOS app and Android application sharing the same REST API-related logic.

I don't see kotlin/native access for these libraries. Do I need to access special branches? My team actually wants to start using the kotlin/native counterparts for all of these.

Wow, I wish I had your team!

I'm looking at the source code for the atomics. I think I must be confused about the way that frozen objects work:

@Frozen
class AtomicInt(private var value: Int = 0) {
  // ...
}

If you have a

var

in a frozen object, how can you still mutate the value of that

var

? I thought it was unchangeable after it is frozen. What am I misunderstanding?

guys, is there any library to use SharedPreference/UserDefaults in common? just like

e5l/http-client-common

Hi guys, I created

awesome-kotlin-native

repo, please contribute it to make curated list of mutliplatform libs, resources. https://github.com/bipinvaylu/awesome-kotlin-native

How can I pass a Kotlin

String

to a C function?

How can I map kotlin native stacktraces to kotlin source code? (Is there a tool for this?)

no guice for kotlin/native? 😕

Hi guys, can anybody help me with compiler error

src/kotlin/main.kt:36:38: error: type _MDP_NOTIFY_TYPE is not supported in callback signature

-> this probably meanas that I have too complex enum class as a parameter in the callback function. I want to know what’s not supported on the enum and if it is suppose to be fixed soon

Hello! I was broke the compiler of kotlin-native.

object Foo {
    var counter = 0

    class Bar {
        init {
            //counter++// << this line
        }
    }
}

fun main(args: Array<String>) {
//NOP
}

if delete "//" on marked line, then compiler throw exception

Are IntArray and Array<Int> the exact same thing? Or is it same as Jvm backend?

Hi guys! Is there are any good iOS+Android sample with MVP/UI?

Hey! I am using Appcode to make iOS project using Kotlin/Native. I want to use the htpp client for Native - https://github.com/e5l/http-client-common. So, I add the repo and dependency in Gradle as stated in the Readme and use it in the ViewController file by importing it. However, I get a compilation error about unresolved reference io for the statement import io.ktor.common.client.* Also, the sample project in that repo uses kotlin-platform-native plugin while I use konan and kotlin plugins. Which one is preferred and why? The sample appcode project uses konan and kotlin (granted its a bit dated as one has to change settings to use gradle 4.7 to even get it to compile but still).

Hello, Everyone I am trying Kotlin-Native because I am very interesting in creating multiplatform apps for iOS and Android. As soon as Kotlin-Native become available I tried to setup multiplatform project with common code module. - I created a Kotlin (Multiplatform-Experiment) project with IDEA. It had two platform specific modules - jvm (for Android) and js (I just ignore it) and common module. - Created new project in Android Studio and imported common and jvm module from previous step - Implemented project for android side. All UI code is in Android Studio project, code that supposed to be common - in common module. For logic that supposed to be platform specific common module use expect class syntax and those classes implemented in jvm module. Now, I wanted to implement iOS part in AppCode. How I should import common module and implement platform specific logic? Or maybe I am doing it all wrong and multiplatform project should be implemented using different flow? I tried to look into Spinner App from Kotlin Conference, but it's so big for me where are many parts and I can't understand how to implement only two projects for client-side. Thanks for your help.

Will

String.format

be available in native?

Is there something I can do to make exceptions more readable from Kotlin/native? The exceptions I'm reading don't even have line numbers, and could easily become very difficult to diagnose.

Ok it looks like main stopper for now (except json but that's easy with expect/actual or kotlinx.serialization) is threading - what is the state for coroutines for K/N, is there any sample available for iOS?

I'm struggling to use pointers properly with Kotlin/native in ObjC interop. I found a SO post with clear ObjC / Swift instructions to use an API, and I'm struggling to replicate in Kotlin: https://stackoverflow.com/a/48030215/471744

val windowInfoList = CGWindowListCopyWindowInfo(kCGWindowListOptionAll, kCGNullWindowID)!!

windowInfoList

is of type

CFArrayRef

, and no matter what I do I can't figure out how to use it / get at the items in the array. Any help would be appreciated. Here is the documentation for the function: https://developer.apple.com/documentation/coregraphics/1455137-cgwindowlistcopywindowinfo

@ilya.matveev I found that the cause for

Could not find org.jetbrains.kotlin:kotlin-native-shared:0.8.

was that my project was using gradle

4.7

. It seems that K/N

0.8

requires

4.8.1

, at least for multiplatform projects

I'm having trouble including multiple Kotlin files in my kotlin/native gradle project. Everything works if I keep everything in a single file. As soon as I move some extension functions into another Kotlin file in the src dir, I can't access it anymore. How do I tell Gradle to compile multiple Kotlin/native files?

Was hoping to see a Ktor HTTP Client library for Linux, aka ktor-client-linux 🙏 ( https://github.com/ktorio/ktor/tree/mpp-client/ktor-client ) but that is missing 🙁.