Is there anyone using kotlin-inject on a multiplat...

# kotlin-inject

[leandro]

Is there anyone using kotlin-inject on a multiplatform project with natural targets (e.g. “iosMain”) and able to generate ksp sources that are available to be consumed?

[Ryan Simon]

I'm working with multiplatform with ios but barely getting to test it. i'll let you know if i get it to work

[leandro]

I think I made it work, but it seems that this issue is making everything so much harder: https://github.com/google/ksp/pull/1021

[Ryan Simon]

Yeah, I ended up switching to Koin as it seems to be much easier to work with when it comes to multiplatform support

[Paul Woitaschek]

Yep we do that. You can just add KSP for all iOS targets.
The ide won't understand it but its working fine

[leandro]

Sweet, so I think I’m on the right path. Just to confirm, on your shared module, you have something like:

kotlin {
  sourceSets {
    iosX64Main {
      dependencies {
        kotlin.srcDir("build/generated/ksp/iosX64/iosX64Main/kotlin")
      }
    }
    iosArm64Main {
      dependencies {
        kotlin.srcDir("build/generated/ksp/iosArm64/iosArm64Main/kotlin")
      }
    }
    iosSimulatorArm64Main {
      dependencies {
        kotlin.srcDir("build/generated/ksp/iosSimulatorArm64/iosSimulatorArm64Main/kotlin")
      }
    }
  }
}

dependencies {
  add("kspIosX64", "me.tatarka.inject:kotlin-inject-compiler-ksp:0.5.1")
  add("kspIosArm64", "me.tatarka.inject:kotlin-inject-compiler-ksp:0.5.1")
  add("kspIosSimulatorArm64", "me.tatarka.inject:kotlin-inject-compiler-ksp:0.5.1")
}

right?

Are you using kspCommonMainMetadata anywhere? It seems not necessary for this case (of having code outside commonMain)..

I haven’t played much with this and I’m wary of iOS archiving/deployments going weird due to (maybe?) some repeated code-gen, once per mArch?

[Paul Woitaschek]

Yes it will be repeated. No issues though. We have no commonMainMetaData in place.
Once KSP supports this we will switch ofc

[leandro]

thank you for confirming 🙏
I found this MR (https://github.com/google/ksp/issues/965) and it seems to be all that we want/need. hopefully it’ll land soon!

[Daniele Segato]

I’m having the same issue.

If I put this in my iosMain

@Component
abstract class Foo

fun foo() {
  Foo::class.create()
}

the create() function doesn’t exist. Have any of you found some more information?

[leandro]

Are you using Kotlin 2.x?

[leandro]

Pre Kotlin 2.0 it was possible to reference the create() function from shared source-sets because code from a target source-set was visible to the shared source-set. Starting from Kotlin 2.0 shared source sets can no longer see code from target source-sets, so you need to use @KmpComponentCreate

[Daniele Segato]

hi @leandro thanks. Yes I’m using Kotlin 2.0.21 atm. And I later discovered @KmpComponentCreate I had missed it.
It kinda helps. But I hope that this part of KMP will improve in the future.