Is there a way to use a type that will be generated as a type for a property?

[shama]

When adding a property to a class, is there a way to use a type that you are generating as a property type?

I am trying to generate the following:

sealed interface ThingViewState {
    object Idle : ThingViewState
}
class Thing {
    private val _state = MutableStateFlow<ThingViewState>(ThingViewState.Idle)
    val state = _state.asStateFlow()
}

with the following:

val name = "Thing"
FileSpec.builder("", name)
    .addType(
        TypeSpec.interfaceBuilder("${name}ViewState")
            .addModifiers(KModifier.SEALED)
            .addType(
                TypeSpec.objectBuilder("Idle")
                    .addSuperinterface(ClassName("", "${name}ViewState"))
                    .build()
            ).build()
    )
    .addType(
        TypeSpec.classBuilder(name)
            .addProperty(
                // Instead of Any::class, I want to use the "${name}ViewState" interface I'm generating above
                PropertySpec.builder("_state", MutableStateFlow::class.parameterizedBy(Any::class))
                    .addModifiers(KModifier.PRIVATE)
                    .initializer("MutableStateFlow<${name}ViewState>(${name}ViewState.Idle)")
                    .build()
            )
            .addProperty(
                PropertySpec.builder("state", StateFlow::class.parameterizedBy(Any::class))
                    .initializer("_state.asStateFlow()")
                    .build()
            )
            .build()
    )
    .build()

When building the properties, is there a way I can use the interface I am generating?

val ThingInterface = TypeSpec.interfaceBuilder("${name}ViewState")

PropertySpec.builder(
  "_state",
  MutableStateFlow::class.parameterizedBy(
    // How do I tell it to use the type I generated in the file before?
    ThingInterface::class
  )
)

Thanks for the help!

[shama]

I just figured it out by guessing:

val mutableStateFlowClass = ClassName("kotlinx.coroutines.flow", "MutableStateFlow")
val viewStateClass = ClassName("", "${name}ViewState")

PropertySpec.builder("_state", mutableStateFlowClass.parameterizedBy(viewStateClass))

so thank you for making an intuitive library!