Hi :wave: been trying out K2 mode in my ktor project, but it's breaking the imports when optimizing ...

# intellij

[João Horta Alves]

Hi 👋 been trying out K2 mode in my ktor project, but it's breaking the imports when optimizing imports.
It's removing these imports on files with routes, breaking the post and put routes. Is this a known issue?

[Roman Golyshev]

Hi! Please share your IDEA version, and also how exactly the code is being broken

Is there a different `post`/`put` function that is being preferred without an explicit import?

A small reproducer would be really appreciated 🙏

[João Horta Alves]

Hi @Roman Golyshev, thanks for the reply, here's the info:
> Please share your IDEA version
IntelliJ IDEA 2024.3 (Ultimate Edition)
Build #IU-243.21565.193, built on November 13, 2024
> A small reproducer would be really appreciated 🙏
Turns out it's pretty simple to reproduce:

import io.ktor.resources.*
import io.ktor.server.resources.*
import io.ktor.server.routing.*

@Resource("/test")
class TestResource

fun Route.testRouting() {
    post<TestResource> {
        TODO()
    }
}

Error:

Debug.kt:9:5 Overload resolution ambiguity between candidates:
fun <reified T : Any> Route.post(noinline body: suspend RoutingContext.(T) -> Unit): Route
fun <reified R : Any> Route.post(crossinline body: suspend RoutingContext.(R) -> Unit): Route

Adding import io.ktor.server.resources.post to that code fixes the error, but K2 will remove that import, while K1 keeps it there.
PS: Tested in kotlin 2.1 and 2.0

[Roman Golyshev]

Thank you for the quick response and the reproducer!

AFAIU this issue was already fixed as a part of KTIJ-30991

It should be available in one of the bugfix releases in 243

[João Horta Alves]

Perfect, thanks! 🙂