Andrey - Unfortunately the OpenFaaS template structure requirements prevent structuring the template to fit the Gradle build structure convention (src/main/kotlin, src/test/kotlin etc) 🙁.

but can you just bundle binaries? It’s custom docker image

hey, I'm playing around with getting my project to work on windows (which it does with shared libs, yay!) but: if I try to create a klib for a static library, the resulting kt file doesn't contain any functions (altough I checked the static lib, it definitly contains obj files, and to me it seems that they are complete). any idea what could cause this?

What is working way to have static class, that will work in kotlin native (ios, different threads)? I want to avoid passing references to some objects inside kotlin code.

Hi. In Kotlin/JVM and Kotlin/Js all collections maps to their platform realization. But what is happens with lisfOf, mapOf .. in Kotlin/Native (when running not in iOS)?

Could we have a

sizeof

like method? I’m struggling with this part, because I must more or less guest the size in bytes of each type, i.e.

(vertices.size * 4).signExtend()

and their c counterpart would just

sizeof(vertices)

I think that docker image to build K/N binaries and to run them shouldn’t be the same. The same problem if you bundle all compilers infrastructure for any other native language. You can bundle it to runtime docker, but probably it’s not the most efficient solution, much more cheap is to have minimalistic image that only can run binaries

agreed, read this to learn how to work around that problem: https://docs.docker.com/develop/develop-images/multistage-build/

Hi! I am trying to compile kotlin-native from master, but running

./gradlew dependencies:update

says

> expected Xcode version 9.4.1, got 9.4,

. But running

/Applications/Xcode.app/Contents/Developer/usr/bin/xcodebuild -version

returns

Xcode 9.4.1
Build version 9F2000.

Am i doing something wrong?

Does anyone know of any benchmarks of Kotlin/native vs other more mature equivalent languages (Swift, rust, C++, etc)? I'm interested to know where Kotlin is in it's performance process. I've seen this ( https://github.com/msink/kotlin-pi ), but its just algorithms, without much / any ARC, or OO.

looks like dependency management dsl was changed/broken in kn-0.7.1+gradle-4.7, sample from

http-client-common

doesn't work anymore after update (

error: unresolved reference: io import io.ktor.common.client.HttpClient

):

konanArtifacts {
    program('app') {
        dependencies {
            artifactapp "io.ktor.common.client:http_client_native:0.1.5"
        }
    }
}

@e5l @olonho could you please check/verify or provide update/workaround?

ok, 0.1.6 fixes issue but now I have the following:

exception: java.lang.IllegalStateException: Could not find "http_client_native"

config:

library('nativelib') {
        enableMultiplatform true

        dependencies {
            artifactnativelib "io.ktor.common.client:http_client_native:$kotlin_http_client_version"
        }
    }

    program('nativetest') {
        srcDir 'src/test/kotlin'
        commonSourceSet 'test'
        libraries {
            artifact 'nativelib'
        }
        extraOpts '-tr'
        dependencies {
            artifactnativetest "io.ktor.common.client:http_client_native:$kotlin_http_client_version"
        }
    }

library

is ok, but

program

if failing

also shouldn't you be asking in #android or #multiplatform

Anyone have any experience with using Kotlin in Godot?

In the objective C framework that’s generated by konan, the classes have these

component

properties alongside the properly names properties. What are these?

I'm try to make a blocking network call on iOS but app either crashes (because of wrong thread access) or hang (because you can't block main thread and schedule download on the same thread simultaneously like in https://github.com/JetBrains/kotlinconf-spinner/blob/master/kotlin-native/samples/fullstack/clients/ios/src/main/kotlin/platformUtils.kt#L72). Should I use workers or there is some simpler way?

I’ve got a particular use case for K/N where I want all my kotlin code to run on a serial background queue. This queue is created on the iOS side using

DispatchQueue.global(qos: .userInteractive).sync { }

. I also keep a reference to this queue. Then from the iOS side i want to call methods on the same K/N objects and again, I use the same serial queue and call those methods. But you cannot share objects between threads in K/N and a serial queue can still use a different thread each time, it’s up the OS. (I’m aware that you can share objects in K/N using

Workers

but all this code is in the common module rather than the iOS module so I do not have access to it) So would i need to change the implementation so i use the same thread each time from iOS or is using a serial queue that could potentially use multiple threads suffice?

Hello all. I have a question that Google has not been able to help me with. Does K/N currently support C -> Kotlin interop? If so, any documentation? If not, is this a planned/roadmap feature? I'm trying to integrate Kotlin Native with the Godot game engine, I have a dynlib compiling but I'm realizing I dont know how to expose a

godot_gdnative_init()

function for the game engine to find and call.

@olonho Will the Kotlinx.coroutines library be able to be ported to Kotlin/native without changing it's API? I'm wondering if the memory model for kotlin/native is making the port more difficult than expected.

Does the Konan Gradle plugin have a way to setup environment variables? Trying to run the weather program (was successfully compiled and linked) through Gradle, but an error appears:

> Task :runWeather FAILED
/home/napperley/repos/openfaas-weather-sample/build/konan/bin/linux_x64/weather.kexe: error while loading shared libraries: libcjson.so.1: cannot open shared object file: No such file or directory

Are there any sqlite iOS+Android KN library?

Have a bizarre situation when running a Kotlin Native binary. In a project managed by Gradle when running build/konan/bin/linux_x64/weather.kexe (the binary) it segfaults. However if weather (a symbolic link to build/konan/bin/linux_x64/weather.kexe) is run from the project directory it doesn't segfault.

Hello. What is the standard way to write unit tests for kotlin native code? I can see that

assertEquals()

works in

main

but not sure how to run tests with CLion test runner (or gradle or cmake).

About kotlin native json serialization, i get an error, not sure if I am doing something wrong

I am writing a cross platform game sample with the goal of moving all our Android game code to it. I'm running into problems with where to put image resources that are loaded from the actual implementation of expected classes for iOS and Android. Working on iOS first, I can load the image by passing NSData contentsAtPath to the UIImage constructor. However, I am missing how to get the path for the image and where to place the png file. Is there a load resource from classloader for Kotlin-Native iOS? Any pointers are much appreciated.

The klib format has a 'native' folder in which we could presumably put bc files from c++ compilation. I have c++ compile and kotlin/native compile happening in different targets, with the c++ referenced with 'nativeLibraries' in the gradle config. Is there a good way to get those native artifacts into the klib without trying to directly manipulate the zip file? From this project: https://github.com/touchlab/knarch.db

Hi @e5l, looks like

0.8-dev-2538

with

ios_arm32

support already published to bintray, could you please update http client?

Hi everyone, I’m trying to build an iOS Framework. I followed the tutorial at https://github.com/JetBrains/kotlin-native/blob/master/MULTIPLATFORM.md Everything seems to work except I have to disable bitcode for it to work on a real device. It seems bitcode generation has recently been added (https://github.com/JetBrains/kotlin-native/pull/1564). Is there a quick fix based on the tutorial to enable bitcode generation? Thanks!

I searched for an IDE for KN I found AppCode and CLion but both IDEs aren't free. is there any free IDE for KN?