Kotlin/Navite Class references now working.

[taetae98coding]

@Composable
public inline fun <reified T : KViewModel> ComponentContext.koinInject(): T {
    val scope = getKoinScope()
    val map = remember(this) {
        stateKeeper.consume(
            key = requireNotNull(T::class.qualifiedName),
            strategy = MapSerializer(String.serializer(), JsonPrimitive.serializer()),
        )?.toMutableMap() ?: mutableMapOf()
    }

    LaunchedEffect(this) {
        stateKeeper.register(
            key = requireNotNull(getKClassForGenericType<T>().qualifiedName),
            strategy = MapSerializer(String.serializer(), JsonPrimitive.serializer()),
            supplier = { map },
        )
    }

    return remember(this, scope) {
        instanceKeeper.getOrCreate {
            scope.get(
                parameters = {
                    ParametersHolder(mutableListOf(KSavedStateHandle(map)))
                },
            )
        }
    }
}

[taetae98coding]

Error Message

error: java.lang.IllegalStateException: Symbol for [ com.taetae98.codelab.library.inject.compose/koinInject|koinInject@com.arkivanov.decompose.ComponentContext(){0§<com.taetae98.codelab.library.lifecycle.KViewModel>}[0] <- Local[<TP>,0|TYPE_PARAMETER name:T index:0 variance: superTypes:[com.taetae98.codelab.library.lifecycle.KViewModel] reified:true] ] is unbound

Solved

Make the wrapper method

@Composable
public inline fun <reified T : KViewModel> ComponentContext.koinInject(): T {
    val scope = getKoinScope()
    val map = remember(this) {
        stateKeeper.consume(
            key = requireNotNull(getKClassForGenericType<T>().qualifiedName),
            strategy = MapSerializer(String.serializer(), JsonPrimitive.serializer()),
        )?.toMutableMap() ?: mutableMapOf()
    }

    LaunchedEffect(this) {
        stateKeeper.register(
            key = requireNotNull(getKClassForGenericType<T>().qualifiedName),
            strategy = MapSerializer(String.serializer(), JsonPrimitive.serializer()),
            supplier = { map },
        )
    }

    return remember(this, scope) {
        instanceKeeper.getOrCreate {
            scope.get(
                parameters = {
                    ParametersHolder(mutableListOf(KSavedStateHandle(map)))
                },
            )
        }
    }
}

public inline fun <reified T : KViewModel> getKClassForGenericType(): KClass<T> {
    return T::class
}

References

JetBrains/compose-multiplatform#3147

[taetae98coding]

Answer

@taetae98coding As far as I understand it, the only limitation is that you can't use T::class in a @composable inline function. The workaround makes a separate function that is inline but not @composable. The compiler does not have an issue with that. From there, you can use that function in any @composable function.