I am using version 1.3.50

Which collection type in kotlin is considered to be the most performant? Things to be considdering is that it should handle a lot add and a lot of deletes. Is there even such a collection, that tries to as performant as it could possibly be?

oh man - it looks like in order to update my kotlin version in my multiplatform project, any deps I am using that support K/N also need to be built with the latest?

Hi there! I just tried to upgrade Kotlin to 1.3.60 for my talk tomorrow, but it seems to miss ktor and kotlinx serialization dependencies:

> Task :SharedCode:compileKotlinIos FAILED
w: skipping /Users/mreichelt/.gradle/caches/modules-2/files-2.1/io.ktor/ktor-client-serialization-iosx64/1.2.5/3b67cda81d91ebb007b5d22aae904569cb794108/ktor-client-serialization.klib. The abi versions don't match. Expected '[17]', found '14'
w: The compiler versions don't match either. Expected '[]', found '1.3.50-release-11850'
e: Could not find "/Users/mreichelt/.gradle/caches/modules-2/files-2.1/io.ktor/ktor-client-serialization-iosx64/1.2.5/3b67cda81d91ebb007b5d22aae904569cb794108/ktor-client-serialization.klib" in [/Users/mreichelt/Entwicklung/other/github-api-kotlin-multiplatform/android, /Users/mreichelt/.konan/klib, /Users/mreichelt/.konan/kotlin-native-macos-1.3.60/klib/common, /Users/mreichelt/.konan/kotlin-native-macos-1.3.60/klib/platform/ios_x64].

FAILURE: Build failed with an exception.

What are the latest dependencies to use for Kotlin 1.3.60? Or is it just too fresh yet?

I updated my Kotlin IDE plugin, without updating my project's kotlin version, and that seems to be causing some issues with K/N

Does the IntelliJ Idea Debugger work with Kotlin Native unit tests or do I have to use the command line debugger?

Hi everybody! Can I draw over screen with kotlin-native on linux or macOs? For example draw a text.

Just by updating Gradle from 5.x to 6.0.1 I get this:

Caused by: java.lang.NoSuchMethodError: org.jetbrains.kotlin.gradle.tasks.CInteropProcess.newOutputFile()Lorg/gradle/api/file/RegularFileProperty;

I’m using Kotlin 1.3.50. Should I wait for an update of the Kotlin plugin for Gradle 6 or something?

Could someone advice this newbee? I have this C*++* project I am trying to migrate to Kotlin (has dependencies too). I tried to write it all from scratch, but came to the conclusion that's not the right way, too much errors, to much to code before I can verify/test etc. So I decided to compile Kotlin to a dynamic C-library and load it into C*++* (as described here https://kotlinlang.org/docs/tutorials/native/dynamic-libraries.html). This works 👍 This way I can migrate one part of the C*++* project at the time. Q: Problem is that I have to migrate ALL types that are being mentioned in the part of code I want to migrate, as see now way to reference the C*++* types from Kotlin. Is there a way to reference the C*++* types from within Kotlin and compile it to C?

I am hitting this

ThrowWorkerInvalidState()

with 1.3.60, did not happen with 1.3.50

Anybody else see crashes in Xcode when breakpoints are set and using a Kotlin MPP framework. Not breakpoints in the Kotlin code, just in the ObjC/Swift code. If I unset the breakpoints and run again, it is fine.

Task :linkDebugFrameworkIos

warning: linking module flags 'SDK Version': IDs have conflicting values ('[2 x i32] [i32 13, i32 0]' from /Users/krisw/.konan/kotlin-native-macos-1.3.60/konan/targets/ios_x64/native/debug.bc with '[2 x i32] [i32 13, i32 2]' from out) warning: linking module flags 'SDK Version': IDs have conflicting values ('[2 x i32] [i32 13, i32 0]' from /Users/krisw/.konan/kotlin-native-macos-1.3.60/konan/targets/ios_x64/native/strict.bc with '[2 x i32] [i32 13, i32 2]' from out) warning: linking module flags 'SDK Version': IDs have conflicting values ('[2 x i32] [i32 13, i32 0]' from /Users/krisw/.konan/kotlin-native-macos-1.3.60/klib/common/stdlib/targets/ios_x64/native/runtime.bc with '[2 x i32] [i32 13, i32 2]' from out) warning: linking module flags 'SDK Version': IDs have conflicting values ('[2 x i32] [i32 13, i32 0]' from /Users/krisw/.konan/kotlin-native-macos-1.3.60/klib/platform/ios_x64/posix/targets/ios_x64/native/cstubs.bc with '[2 x i32] [i32 13, i32 2]' from out) warning: linking module flags 'SDK Version': IDs have conflicting values ('[2 x i32] [i32 13, i32 0]' from /Users/krisw/.konan/kotlin-native-macos-1.3.60/klib/platform/ios_x64/Foundation/targets/ios_x64/native/cstubs.bc with '[2 x i32] [i32 13, i32 2]' from out)

Will there be an official 1.3.60 K/N release here: https://github.com/JetBrains/kotlin-native/releases ? I usually wait for that and/or an announcement here from the K/N folks before I start releasing upgraded libraries

I am trying to migrate C++ code by compiling Kotlin to a dynamic library and replacing step by step. I load this lib by including the header and the symbols:

#include "libmy_api.h"
auto mylib = libmy_symbols();

So far so good. Now I would love to replace the orginal classes, for example

CMyClass

with the one from the Kotlin library. So I remove

CMyClass

from the C-source code, and I add a typedef:

typedef libmy_kref_MyClass MyClass;

Now I can use the regular

MyClass

as a type:

std::vector<MyClass> classes

So I don't have to touch that code, as it was already referencing "MyClass". Still good. Now the problem is when I try to create an instance. The current code is like this:

classes.push_back(MyClass())

But to initiate the class in the KN dl way, I have to replace all the code with:

classes.push_back(mylib->kotlin.root.MyClass.MyClass())

Is there a way, like typedef or using does, to keep this code intact while it does actually reference the kotlin generated dynamic library?

I have an existing Android project which I am migrating to K/N. First thing is to move the domain object layer to the K/N common module so the the to-be developed iOS can already start using this code. This approach seems to work. I have replaced a third-party DateTime library with the K/N Klock library (https://github.com/korlibs/klock). The existing Android app uses Java serialization to pass objects between activities. I created A an expect interface KSerializable with an actual typealias to Serializable in the Android source tree. This works, domain objects in the common can now be serialized using Java serialization in the Android app. The Klock DateTime object is, however, not serializable. this class does not implement KSerializable. Is there an approach to use Java serialization mechanism without much rewrite (this mechanism (passing serialized objects to activities) is used a lot in this application)? A possible solution could be creating Parcelable and pass the data as Parcelable, perhaps use a Json representation as the Parcelable object (using readString and writeString). Thanks!

Just playing around with Kotlin native ( building a windows exe for starters). I'm trying to read individual keystrokes, and can't seem to figure out how. Where to look?

am I right that there is no official release of coroutines for 1.3.60 Kotlin? Kotlinx coroutines 1.3.2 is still on 1.3.50 Kotlin release?

I'm the maintainer of the kotlin-native distribution on Solus (a Linux distribution). The

v1.3.60

tagged release is failing to build for me, but the later tag

v1.3.60-release-13393

builds successfully. Are there any substantial differences between the two?

Hi, I have two questions, I don’t know they are about gradle or K/N My build.gadle.kts

import org.jetbrains.kotlin.gradle.tasks.FatFrameworkTask


plugins {
    id("org.jetbrains.kotlin.multiplatform") version "1.3.60"
}

repositories {
    mavenCentral()
}

kotlin {
    ....
}

tasks.getByName("assemble")!!.finalizedBy("android_A")
tasks.getByName("assemble")!!.finalizedBy("IOS_A")
tasks.getByName("assemble")!!.finalizedBy("JVM_A")

tasks.create("android_A", Copy::class){

}

tasks.create("IOS_A", Copy::class){

}

tasks.create("IOS_B", FatFrameworkTask::class){

}

tasks.create("JVM_A", Copy::class){

}

This is fine and no warning But I want to spread platform, so I create folder

app
--spreadGradle
----android.gradle.kts
----ios.gradle.kts
----jvm.gradle.kts

then My build.gradle.kts is

plugins {
    id("org.jetbrains.kotlin.multiplatform") version "1.3.60"
}

repositories {
    mavenCentral()
}

apply(from = "spreadGradle/android.gradle.kts")
apply(from = "spreadGradle/ios.gradle.kts")
apply(from = "spreadGradle/jvm.gradle.kts")

kotlin {
    ....
}

tasks.getByName("assemble")!!.finalizedBy("android_A")
tasks.getByName("assemble")!!.finalizedBy("IOS_A")
tasks.getByName("assemble")!!.finalizedBy("JVM_A")

and android.gradle.kts is

tasks.create("android_A", Copy::class){

}

ios.gradle.kts is

import org.jetbrains.kotlin.gradle.tasks.FatFrameworkTask

tasks.create("IOS_A", Copy::class){

}

tasks.create("IOS_B", FatFrameworkTask::class){

}

jvm.gradle.kts is

tasks.create("JVM_A", Copy::class){

}

But got two issuss First: although build is ok but got warning like

Cannot add task 'android_A' as a task with that name already exists.
Cannot add task 'JVM_A' as a task with that name already exists.

etc. Second: in my ios.gradle.kts Error for

unresolved reference: jetbrains

Can master help me? Thank you very much

How can I publish a native dependency as klib with the static library (a) included? For context the current build script: https://github.com/marykdb/rocksdb/blob/feature/native-implementation/build.gradle.kts The current published results: https://bintray.com/maryk/maven/RocksDB/0.3.0#files/io/maryk/rocksdb

Have a weird situation where the same text is repeated when printing a Kotlin String, eg:

./jmonitor.kexe --io-metrics Main
I/O metrics for Main:
* Characters Read: 1142215787
* Characters Written: 2559364802
* Total Read System Calls: 229852
* Total Write System Calls: 148106
* Total Bytes Read: 533704704
* Total Bytes Written: 1415086080
* cancelled_Total Bytes Written: 12288

Note that

Total Bytes Written

is repeated twice. What could cause text to be repeated in a Kotlin String?

Hey all, can anybody help me, how to add a GestureRecognizer to a UIView from Kotlin? I'm trying to achieve the ability to start a function (passed as a lambda), when a View is pressed. Here is what I tried: (ViewContainer is a typealias for UIView, I want to use this in the common presenter of an Android/iOS-Multiplatform project)

actual fun ViewContainer.setOnCLickListener(block: () -> Unit) {
    val funRef = StableRef.create(InvokeClickListener(block))

    this.addGestureRecognizer(UITapGestureRecognizer(this, funRef.asCPointer()))
}

class InvokeClickListener(private val block: () -> Unit) : () -> Unit {
    override operator fun invoke() {
        block()
    }
}

I already managed to set the visibility of Views in the common code. If interested I can post code snippets in the multiplatform channel. But this case is harder, because UITapGestureRecognizer wants a selector/COpaquePointer and I can't find a solution.

Hey all, getting the following error after updating to kotlin 1.3.60 with kotlin coroutines version 1.3.2-native-mt-1. I am building using module stitching as mentioned here https://github.com/JetBrains/kotlin-native/issues/3461#issuecomment-541937515. If I am not doing module stitching, the error does not appear. Have tried by checking that all versions are in sync but I do not feel thats the problem because if that was the case, it should have failed when not using module stitching. https://scans.gradle.com/s/wsiacoaizlniq Any idea about it?

I just realized that I can't create an in-memory database using SqlDelight for writing unit tests. How are folks writing tests that talk to a storage layer?

How do I access the

values

array of a Kotlin enum class from Swift/ObjC?

Hello, what is the kotlin-native to way to execute another jar (it is not fork !) and then depending on an action restart it or kill it ?

are there any libraries that work on all MP platforms?

i got that one to work just now, but was wondering if that only works bc it's bundled?

Hello all, what is the kotlin-native way to stop/kill another process ?