Hello, may I add Pair.swap(), Pair.sort(), Triple.sort() to stdlib? ^^

Required environment variables are missing: JDK_16, JDK_17, JDK_18, JDK_9. May I have links to the reference versions of JDKs you all are downloading to build against?

I'm thinking about solutions to the propagation of

OrNull

and here is an idea to start a discussion: https://github.com/apatrida/KEEP/blob/master/proposals/OrNull-syntactical-sugar.md

Hello all ! I'm new on this Slack. I'd like to contribute to kotlin project on GitHub but I don't know how to ... Can someone help me please?

I am trying to work on a pull request that will improve TS declaration generation. I'm struggling however with the tests. The tests for the TS generation seem to be in

js/js.translator/testData/typescript-export

. The readme there tells me I first need to run the box tests via JUnit. I don't know how to do this. I ran

test

task from

js:js.tests

however it takes forever (I gave up and stopped it after like 1200 very slow tests.... can I filter these somehow?). I ran

quickText

, which seems to be much faster (it's still running, at 4000 tests now...), however it has failed tests (again how can I just run the tests that I want to?). Additionally, I have no idea how I would go about making my own set of tests in the

typescript-export

set? Do I just copy one of the existing folders and go from there? Thanks for any insight! 🙈

I have raised a youtrack ticket [https://youtrack.jetbrains.com/issue/KT-47200] regarding JsExport and an alternative mechanism to export. I would be grateful to anyone who can help.

Sounds like I've missed that, but: 1. How do I build the Kotlin locally and use it in another project, especially given that gradle discouragers from using mavenLocal? I could use a cli kotlinc, but I aim for full gradle plugin, to write something like

plugins { kolin("js") version "1.5.30.1234-local" }

, if that's even possible, this is. 2. Can I use the latest dev/nightly builds like build-1.5.30-dev-2088 which I see are frequent on github release page? Kotlin itself uses those to bootstrap itself and I have tried adding some of the gradle dependency links from the repo, but with no luck.

Working with the Kotlin repo itself in the intellij. Importing gradle fails with 

Unexpected state for resolution: Unknown

 error for every gradle project. The resulting error message is 

Could not resolve all dependencies for configuration ':allopen-ide-plugin:compileClasspath'

 but I guess that's because it's the first project. When I do 

Refresh gradle dependencies

 on the root (

kotlin

) project, the gradle model builds, but is not imported. But when I then 

Reload Gradle Project

 the circle repeats, see line 2. The thing is, when I execute 

gradlew assemble

 in the shell, for example, everything builds fine. Hence I do not post this at #gradle I've been instructed to ask here but I apologize if this is not the correct place.

@mglukhikh Hello! I'm working on KT-18435, and I've started implementing it as an IR lowering phase for == calls. My problem is that

IrClass

doesn't have

sealedSubclasses

. I see only two options to solve this problem: 1. Publish

IrBuiltIns.toIrSymbol

function to use

ClassDescriptor.getSealedSubclasses

(and it seems to be a bad way). 2. Add such property and support it in

fir2ir

and

psi2ir

. I need some opinions from the compiler team to get if I can add this property or this problem can be solved in another way.

hi kontributors! I'm new and want to help out but I'm running into a few issues after cloning the repo. Fedora 34 Intellij IDEA - 2021.1.3 (Kotlin 211 1.5.20) Gradle 7.1.1 JDK 1.8 (also have 11 available) wondering if i need to downgrade the IDE version and also how i can find Java 6 for this (if it's still needed?)

This message was deleted.

Can I get someone to look at https://github.com/JetBrains/kotlin/pull/4449 (for KT-42183)? It's been stale for ~1.5 months now.

hi folks! I'm working on Kotlin/Python backend (#python, #python-contributors) and adjusting lazy properties init and I have a question about writing lowerings. I'm struggling with the internal compiler API. For each IrFile, a variable 

properties_initialized_someFileName_kt

 is checked inside the init functions (we base our Python backend on the JS one, so this also happens in JS/IR backend). The problem in Python is that variables need to be initialized before they are read, so for each IrFile I need to produce a top-level assignment 

properties_initialized_someFileName_kt = False

. Something along these lines (forgive the imprecise arguments, the returned type is the real problem):

JsIrBuilder.buildSetField(
    symbol = ...Name.identifier("properties initialized $fileName")...,
    receiver = null,
    value = JsIrBuilder.buildBoolean(context.irBuiltIns.booleanType, false)
)

I tried adapting existing lowerings to emit such IR entity, but I don't know how to put 

IrSetFieldImpl

 in the IR output because lowerings produce a list of 

IrDeclaration

 and the types just don't match. I sort of understand lowerings that transform some existing IR node to something else, but here I need to produce something new (not map from A to B). It would be cool if you could guide me how to write such lowering, and maybe also refer me to some docs about internal compiler API.

How to use the compiler I got by running

gradle dist

to compile the repo itself ? Made some changes to compiler, worrying that the test case may not be comprehensive enough.

every time I open the Kotlin project in IntelliJ, "updating indexes" looks like it's done again. It takes 10-15 minutes and during that time, I get no code suggestions, which is a bit counter-productive. Anyone faced the same problem?

I've modified code related to backend IR. What tests (gradle tasks) should I run?

Hi Team, I was wondering if https://youtrack.jetbrains.com/issue/KT-48414 is an example of a feature that should be discussed through KEEP first, or is it rather considered as something small that could be discussed/iterated on within PR scope once there is some code? Thanks

Working on backend compiler - I want to compile a project, but not have to wait for the frontend each time. Can I dump a tree after frontend or after psi2ir and on each run load it from disk and continue from there?

Hi Team, I'm new to the open source ecosystem and I wish to contribute to the project. I just needed a clarification, do I simply find issues on GitHub/YouTrack and send a PR? Or is there some intermediate step as well? Any input would be appreciated. Thanks.

Hey team the kotlin.Result class seems to have no class description documentation attached (the methods are documented). I checked the source code and it looks like it encapsulates the idea of getting a value or getting some exception (like IOException while getting data from a database). Would it be a good idea to file an issue and add say, for example, example code snippets and a description on how to use it? Or is that unnecessary?

Hi folks! Does anyone know whether I should expect all the tests to pass on master please? I'm seeing e.g. 70 failures in

compiler/fir/analysis-tests/build/reports/tests/test/index.html

, but given all the red on https://teamcity.jetbrains.com/project.html?tab=projectOverview&projectId=Kotlin I'd just like to check whether this is normal before I try to work out what's going wrong.

How can I run

compilerTest

with a particular number of threads? Passing

-Porg.gradle.parallel=false

,

-Dkotlin.test.maxParallelForks=1

and

-Porg.gradle.workers.max=1

doesn't seem to be having any effect

Hi, I am trying to build kotlin repo, but getting

No compatible toolchains found for request filter: {languageVersion=6, vendor=any, implementation=vendor-specific} (auto-detect true, auto-download true)

error, how do I resolve this error? I am on macOS and have insatlled java6 using brew as mentioned in the README.

setting up JDK 6 was possibly the hardest aspect of getting a build running whenI did it a month ago.

I posted this in #getting-started, but was told to move it here: I'm trying to package

kotlin-native

in the AUR and am having trouble building it. Currently, it's giving me a bunch of errors when I try to run

gradle :bundle

, with the message

e: warnings found and -Werror specified

. I've tried the following: 1. Compiling from the root directory, with

gradle :kotlin-native:bundle

2. Compiling from the

kotlin-native

directory with

gradle :bundle

3. Adding

kotlin.build.disable.werror=true

to the

gradle.properties

in both the root and

kotlin-native

directories, and performing 1 and 2 again. 4. Modifying the property

KotlinBuildProperties.disableWerror

in

buildSrc/src/main/kotlin/BuildPropertiesExt.kt

to make it always return

true

, then performing 1 and 2 again. 5. Commenting out

allWarningsAsErrors = true

in the

build.gradle.kts

(line 529) and performing 1 and 2 again. 6. Passing

-Pkotlin.build.disable.werror=true

to gradle, and performing 1 and 2 again. At this point, I'm stumped on what I need to do to build it properly.

hi, we recently synced our fork with JetBrains/kotlin's master, and we randomly get such failures (see the Build step) when building the repo - details in the thead. Are you aware of any issue that still persists on main repo's master or has been already fixed? not sure if it's worth syncing with main repo now, or wait

If I modify some

JVM_IR

lowering code, which changes the jvm bytecode of

stdlib

classes, can I just run

./gradlew jvmCompilerTest

to test the change or I should run something like

./gradlew coreLibsTest

to build the

stdlib

first?

Hi, after clone kotlin repo. I got sync failed , Could not find org.jetbrains.kotlin:kotlin-build-gradle-plugin:0.0.32. detail in thread