I have experience with React.js, so ReactNative ideally shouldn’t be a mountainous effort. I know a bit of Dart too, so Fluttr should also eventually become easier. But, I like the way Kotlin works, and was wondering if learning Kotlin will be a valuable time investment

Hello guys, Are there any tooling platforms(like IDEA) that are free to use for KotlinN as of now? Was previously trying out kotlin JVM side, and now some of the basic stuff about the language. What I do want to know is is it possible to do native code with kotlinN in IDEA community edition,maybe via a plugin or a few simple steps outlined somewhere?

Can anyone tell me a good demo for multi module gradle project where one module targets native ? Cant seem to find any good ones

I am trying to do some threading with K/N. Basically, I want to thread off some work and call a listener when ready. This code crashes with

IllegalStateException

. Any suggestions on how to improve?

import kotlin.native.concurrent.*

class KotlinNativeFramework {

    var listener: KotlinNativeFrameworkListener? = null

    fun startWorking() {
        val myInput = DoubleArray(10) { it.toDouble() }.toList()

        val future = Worker.start().execute(TransferMode.SAFE, {
            myInput }) { input ->
            val doSomeWork = DoSomeWork()
            doSomeWork.run(input)
        }

        future.consume {
            result -> listener?.resultsReady(result)
        }
    }
}

interface KotlinNativeFrameworkListener {
    fun resultsReady(result: WorkResult)
}

Hm, is there any significant changes in 0.9.2 vs 0.9.1? I'm getting

/opt/teamcity-agent/work/4d622a065c544371/runtime/src/main/cpp/Memory.cpp:356: runtime assert: Unable to execute Kotlin code on uninitialized thread

after update. On 0.9.1 downgrade I see

ld: targeted OS version does not support use of thread local variables in ___unnamed_41 for architecture x86_64

(xcode 10)

And if so, are there any examples?

Is there a way to force an object to be allocated on the stack ?

there are some working examples, but I cant see any tutorial how to create mpp project, especialy ios app to be able to use common framework.

So I have a very small array of `List<Particle>`s. These particles have mutable state so I can't freeze them. I'd like to process each list in a different thread/worker. How would I be able to do this? How could I detach/transfer them? All the examples I've seen have the worker create the data themselves. As supposed to working on existing data.

Is there any article about the difference between Kotlin Native and MultiPlatform?

can anyone point me to what i should allocate for this argument?

type mismatch: inferred type is CPointerVarOf<COpaquePointer /* = CPointer<out CPointed> */> but CValuesRef<COpaquePointerVar /* = CPointerVarOf<COpaquePointer /* = CPointer<out CPointed> */> */>

was expected.. i think it requires whatver would be the correct usage for a **void type

Can Konan depend on kotlin-platform-native library?

Something like https://rustwasm.github.io/2018/09/26/announcing-web-sys.html with a shared multiplatform API shared between JS and Native/WASM would be awesome for next year ;-)

hello! i try update my multiplatform (android & ios) module from 0.8 kotlin/native to 0.9.2 with kotlin 1.3 RC and now compilation failed with:

Undefined symbols for architecture x86_64:
  "_kfun:platform.darwin.objcKniBridge77$darwin(kotlin.native.internal.NativePtr;kotlin.native.internal.NativePtr)platform.darwin.NSObject?", referenced from:
      _kfun:io.ktor.client.engine.ios.IosClientEngine.$execute$3.invokeSuspend(kotlin.Result<kotlin.Any?>)kotlin.Any? in combined.o
  "_private_functions_<ktor-http-ios>_kfun:io.ktor.http.HttpStatusCode.equals(kotlin.Any?)ValueType_57", referenced from:
      _kfun:com.mirbega.russiarunning.network.LiveEventsApi.$processResponse$3.invokeSuspend(kotlin.Result<kotlin.Any?>)kotlin.Any? in combined.o
ld: symbol(s) not found for architecture x86_64

used versions is:

kotlin_version = '1.3.0-rc-57'
    kotlin_native_version = '0.9.2'
    coroutines_version = '0.26.1-eap13'
    serialization_version = '0.8.1-rc13'
    ktor_version = '0.9.5-rc13'

anybody get same problem? or know how to fix?

@olonho Were destructors ever added to Kotlin/native? If I have a frozen object with a reference to a C Pointer where I'm storing a mutable Kotlin object, I want to ensure that the C pointer gets cleaned up with the frozen object is free'd. Is there a way for me to do such a thing without destructors?

Is there a way to minimise size of Kotlin/Native program binaries?

I have KN library that can be compiled to ios framework. Is there any documentation or tutorial on how I could make this into a cocoapod, so it would be possible to include this lib via cocoapods? I’ve seen in KN documentation one mention that it is possible

when trying to run

./gradlew :ios:compileKonan

from terminal I get

error: you have not specified any compilation arguments. No output has been produced.

Any ideas why?

what versions of koltin and coroutines lib one should use

how this related on IDE?

I want to thread off some work and when finished notify a listener without blocking the thread. I have tried to do this with two workers, but I fail to find a solution where I don’t have to freeze the listener. Can someone point me in the right direction? I will post the code in the thread.

Hi there. do you know of any K/N sample project with unit tests ? What would be your recommendations for unit testing the “common” KN code for a guy used to writing “classic” android-jvm kotlin code ? It is even possible to test the common code directly ?

is there any documentation on making ios applications with k/n? I have been trying for a long time looking for something, and all i find are giant projects from tech wizards, which i don’t understand. how can a beginner get into this? I really am not sure

that’s why im looking for help. i want at least something i can use to get started, and i hope to document my process so more people use it.

another question. does alloc<>() zero out the allocated memory or not?

i mean it "knows" in the sense that it doesn't report any errors, but the IDE has no intelligence about the types

How do I go about implementing a cache that is accessed from multiple threads? My understanding is that I need to freeze it, but then I won't be able to modify from different threads.

I'm having some trouble getting tests to run for iOS with the new multiplatform plugin. Can anyone point me in the right direction?

shall i just wait until 1.3 is out for real or is this not really a supported configuration? i don't think i'm doing anything special beyond combining the kotlin/jvm and kotlin/native gradle plugins in the same build

How on Mac through Gradle to make build for Linux?

gradle build

only do macos_x64

apply plugin: 'konan'

konan.targets = [ 'macbook', 'linux' ]

konanArtifacts {
  program("app") {
    enableOptimizations(true)
  }
}