kotlinx-serialization support

[dariuszkuc]

Hello 👋
Was just wondering whether it would be possible to add some documentation on how to configure kotllinx-serialization compiler plugin? Unsure if it is supported as I haven't found any references to ComponentRegistrar in kotlinx repo.

val compilationResult = KotlinCompilation().apply {
  jvmTarget = "1.8"
  sources = myGeneratedSources
  inheritClassPath = true
  compilerPlugins = ???
}.compile()

Thanks for the great project!

[tschuchortdev]

I'm not sure if it is possible or how to do it. The best way to find out would be to find the code of the corresponding Gradle plugin and see what it does. I couldn't find any such code in the repository that you linked, so I suspect that the code for the Gradle plugin is somewhere else. Perhaps this and this is what you're looking for? Hopefully, you just need to add the ComponentRegistrar that I linked to the KotlinCompilation and it should work, but the ComponentRegistrar won't be included in the artifact of the runtime library. I'm not sure if it even gets published, but you could try this artifact.

If you find out how to do it, you're welcome to make a PR to add documentation, or document it in this issue. I'm sure other people will find it helpful as well.

[dariuszkuc]

Tried using gradle serialization plugin as a dependency but sadly it also fails with the same error.

[tschuchortdev]

Have you tried this?

testImplementation "org.jetbrains.kotlin:kotlin-serialization:1.6.10"
testImplementation "org.jetbrains.kotlinx:kotlinx-serialization-json:1.3.2"

Seems to work for me, at first glance.

[dariuszkuc]

Looks like my issues were from some Gradle build cache as it started working today.

val compilationResult = KotlinCompilation().apply {
  jvmTarget = "1.8"
  sources = myGeneratedSources
  inheritClassPath = true
  compilerPlugins = listOf(SerializationComponentRegistrar())
}.compile()

Dependencies

testImplementation("com.github.tschuchortdev:kotlin-compile-testing:1.4.5")
testImplementation("org.jetbrains.kotlin:kotlin-serialization:1.5.31")

Thanks for the help and awesome library.

[nsragow]

Do you have a working project? I am running into the same 'com.intellij.mock.MockProject (shaded) vs org.jetbrains.kotlin.com.intellij.mock.MockProject' issue

[dariuszkuc]

@nsragow double check on your project dependencies (and clear caches as needed) and verify you are using libraries with compatible kotlin version. (link to my test class)