Because of KAPT's performance at our size, I've implemented a similar solution to https://www.droidcon.com/media-detail?video=380953207, where we use Javac to process .class files for annotations coming from kotlinc. It's giving us pretty significant build wins and we're willing to work with the constraints like not referencing generating code directly within the same target. One problem we've run into with some of our APs is the use of SOURCE retained annotations, so I've been experimenting with a kotlin compiler plugin to rewrite the SOURCE retention to CLASS on annotation definitions. However, through my digging, I've only figured out how to rewrite the ones we define per target, but not consume as jars (3rd party deps, downstream java deps, etc..). I have two questions I'm hoping someone could give context on or point me towards some resources to help. 1. Is there a way to set a new Class Builder Mode that's used for the default compiler execution, not an explicit call from another plugin like KAPT? This would allow us to set the mode to retain source annotations (like kapt does) and solve the issue, but it doesn't seem like the overrideClassBuilderMode() method is called on a plugin extension using ClassBuilderInteceptorExtension. 2. If 1 is not feasible, is it possible to adjust the retention policy at the consumer callsite of an annotation as opposed to just the definition? If both are not feasible, I plan on doing some bytecode rewriting all the jars in our build pipeline to adjust source retained ones to class, and combine that with the version I have now that rewrites our own defined versions. This seems overweight though, so hoping I'm overlooking something more simple.

Is it possible, from a compiler plugin, to get the original source code for the call site of a function? Is this something being considered/possible for the new IR compiler plugins? I've been poking around in the Kotlin repository trying to figure out if an idea I have for a plugin is even possible. I found

org.jetbrains.kotlin.ir.SourceManager

but I'm not sure if that can be used to read the source file given an

IrCall

.

My compiler plugin Component registrar is not being accepted by K2JVMCompiler()

java.lang.RuntimeException: Compilation failed. java.lang.ClassCastException: Cannot cast io.quarkus.allopen.cli.QuarkusComponentRegistrar to org.jetbrains.kotlin.compiler.plugin.ComponentRegistrar

How could I make it work ?

Is there already a way to enable the IR Backend for KotlinJs?

Hello! What I should return from KotlinGradleSubplugin.getPluginArtifact if I implement kotlin compiler plugin in buildSrc gradle section?

Is there a way that a compiler plugin can take the resolved generic types from certain values, and replace them with different generics (assuming the replacement conforms to type bounds) before code analysis?

I just got this:

Caused by: org.jetbrains.kotlin.codegen.CompilationException: Back-end (JVM) Internal error: Couldn't inline method call 'withLock$default' into
public suspend inline fun <T> kotlinx.coroutines.sync.Mutex.`withLock$default`(owner: kotlin.Any?, action: () -> T, `$mask0`: <http://kotlin.Int|kotlin.Int>, `$handler`: kotlin.Any?, `$completion`: kotlin.coroutines.Continuation<T>): kotlin.Any? defined in kotlinx.coroutines.sync

I'm currently trying out jetpack compose dev04 and Android Studio canary so I don't mind the occasional exception but is it worth reporting it somewhere ?

Does anyone know if there is a way within the compiler apis to evaluate a KtExpression that does not require instantiating and bringing in the script-utils with the ScriptEngineFactory?

So I'm paying around with IR and I've generated a simple function. When the Kotlin compiler runs and I export the project JAR, I can see my function in the JAR. Yay! But if I look at the class files in the build folder it's nowhere to be found. Also I can't use the function from the test sources. What am I missing?

I'm currently fixing up the kotlin bazel integration -- is there a way to exit the compiler after the analysis phase? I'm attempting to the use the kotlin jvm-abi-plugin to generate abis for downstream compilation.

Has anyone had the experience of invoking K2JVMCompiler with a plugin and getting this error:

java.lang.NoClassDefFoundError: org/jetbrains/kotlin/compiler/plugin/CommandLineProcessor
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at <http://java.net|java.net>.URLClassLoader.defineClass(URLClassLoader.java:468)
	at <http://java.net|java.net>.URLClassLoader.access$100(URLClassLoader.java:74)
	at <http://java.net|java.net>.URLClassLoader$1.run(URLClassLoader.java:369)
	at <http://java.net|java.net>.URLClassLoader$1.run(URLClassLoader.java:363)
	at java.security.AccessController.doPrivileged(Native Method)
	at <http://java.net|java.net>.URLClassLoader.findClass(URLClassLoader.java:362)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at org.jetbrains.kotlin.preloading.MemoryBasedClassLoader.loadClass(MemoryBasedClassLoader.java:75)
	at org.jetbrains.kotlin.preloading.MemoryBasedClassLoader.loadClass(MemoryBasedClassLoader.java:82)
	at org.jetbrains.kotlin.preloading.MemoryBasedClassLoader.loadClass(MemoryBasedClassLoader.java:75)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:411)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

As you can see it's running in a subset class loader that was seeded with the compiler jar -- but it can't find the class that is most certainly in the jar. (double checked, in fact) Tried add the jar explicitly to the cp, as well as passing it .as a plugin (bit of a hail mary, that.) Any advice?

Hi, is HMPP ready to be tried in 1.3.70 EAP 3? I'd like to try it for the #splitties libraries

I’m curious about how the kotlin compiler works with coroutines. Currently I’m looking the official kotlin repository(https://github.com/JetBrains/kotlin), but there are a lot of modules and it’s hard to figure out where to start. Could you guys give me some guidance?

Hello, I have inline function with reified type. How can i get real type in Kotlin compiler plugin at

override fun visitCall(expression: IrCall, data: Unit): IrElement

?

There are a number of open issues with the Kotlin IntelliJ plugin about an error “PSI and index do not match”: - https://youtrack.jetbrains.com/issue/KT-32042 - https://youtrack.jetbrains.com/issue/KT-34759 - https://youtrack.jetbrains.com/issue/KT-34524 These issues are causing IntelliJ/Android Studio to effectively become a simple text editor for a large number of our developers. Is there anything we can do to help debug and/or prioritize a fix? I would try diving into the plugin codebase to fix it myself, but I won’t have bandwidth to do so for at least a few more weeks.

Hello! I've switched to 1.3.70 and got error in my compiler plugin when calling

IrType.isInterface

, got

java.lang.IllegalStateException: Symbol for deserialized  class Any is unbound.
As i understand this cause when getting owner from symbol of other module. 
Please advice me how to solve it.

Hi everyOne. Does kotlin support java 5(version 49)?

is this where i ask about kotlinx-metadata-jvm? How do I write out a modified KmModule read with KotlinModuleMetadata?

Hello! I'm using Kotlin 1.3.70. When I compile kotlin-js with

-Xir-produce-js

I got a lot of compilation error from jsTest that it can't find symbols that located in jsMain. Without setting this flag all compiles well. Please advise me how can i compile my Kotlin code to js using IR? P.S. it is the same for browser{} and nodejs{}

Hello! I have such code (Kotlin jvm):

fun main() { 
      embeddedServer(Netty, port = 8080, host = "127.0.0.1") {
        routing {
            get("/") {
                call.respondHtml {
                    head {
                        title("Hello from Ktor!")
                    }
                    body {
                        +"${hello()} from Ktor. Check me value: ${Sample().checkMe()}"
                        div {
                            id = "js-response"
                            +"Loading..."
                        }
                        script(src = "/static/test_js.js") {}
                    }
                }
            }
            static("/static") {
                resource("test_js.js")
            }
        }
    }.start(wait = true)
}

After compiling it with

useIR=false

it works ok, but after compiling it with

useIR=true

it throws execption on `call.respondHtml {`: java.lang.NoSuchMethodError: 'java.lang.Object io.ktor.html.RespondHtmlKt.respondHtml$default(io.ktor.application.ApplicationCall, io.ktor.http.HttpStatusCode, kotlin.jvm.functions.Function1, int, java.lang.Object, kotlin.coroutines.Continuation)' Please, advice me how can I make it work with

useIR=true

.

I’m trying to brute force my way through writing a compiler plugin (JVM only for now), but I’m stuck now because I can’t find an

InstructionAdapter.ireturn()

function. How do I write the JVM

IRETURN

(integer return) bytecode into my generated code?

is this a bug ? intellij/kotlinc dont complain

In my multi-module gradle project with mixed source sets, when I make a small change to a Kotlin source file, compileKotlin is very fast. But when I am changing a Java source file, it take very long. It looks to me that kotlin compiler is compiling whole kotlin source code. Is this a known behavior? If not, can someone tell me any resource so I can profile kotlinc to know better what is going on?

Can someone tell here how to debug the compiler 🙏 ?

Also all

owner

property in the IR nodes are now null whereas before they always contained the pointer to the

symbol

What's the best way for me to learn how to write a compiler plug in? I've tried looking at it a few times in the past but could never figure out what was going on in the IR.

Hi!, When generating code with IR which seems ok in 1.3.61 it produces binaries that when loaded at runtime result in this kinds of exceptions related to

kotlin.internal.ir.Intrinsic

. I suppose this is an issue in code generation and not that I actually need an IR runtime to run that code and it’s missing as dependency. Is that the case? Or does anyone else know where this may be coming from? Any help is appreciated, thanks!

Exception in thread "main" java.lang.NoClassDefFoundError: kotlin/internal/ir/Intrinsic
	at consumer.MainKt.<clinit>(main.kt:5)
Caused by: java.lang.ClassNotFoundException: kotlin.internal.ir.Intrinsic
	at <http://java.net|java.net>.URLClassLoader.findClass(URLClassLoader.java:382)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 1 more

Hi, I have a problem while writing a compiler plugin. My goal is to collect functions with a specific annotation and create a class for each of them. The problem is that the class needs to be placed inside a different package than the actual function and i have no idea how to do this. Is this even possible with current apis?

Hi guys! I tried to create a Kotlin compiler plugin to generate a simple method, but I cannot figure out how to resolve that method! I asked about it couple of weeks ago https://stackoverflow.com/questions/60532779/unresolved-reference-in-generated-method-by-a-kotlin-compiler-plugin without answer! Any idea to solve it would be appreciated. Thanks.

On one of my ktor projects, updating the ktor dependency from 1.3.1 to 1.3.2 hugely increases the compile time. Normally

./gradlew classes

takes 40-50s from a clean workspace with ktor 1.3.1. I've been waiting 8 minutes so far on 1.3.2... Is this a known issue?