I have a class that takes a `clockNow: () -> Instant` parameter. To inject it, I provide a `single<(...

# koin

[Olivier Patry]

I have a class that takes a clockNow: () -> Instant parameter.
To inject it, I provide a single<() -> Instant>.
It works but I get a warning: Type is not declared in Koin modules: () -> Instant

val myModule = module {
    single<() -> Instant> { Clock.System::now }

    singleOf(::TaskRepository)
}

Is it expected? Can I do better?
(to declutter, I introduced a type alias typealias NowProvider = () -> Instant but it doesn't change anything)

[Pablo Otero Castro]

Try using a fun interface instead of a plain lambda.

fun interface NowProvider {
    fun now(): Instant
}

val myModule = module {
    single<NowProvider> { NowProvider { Clock.System.now() } }
    single<NowProvider> { NowProvider(Clock.System::now) }

    singleOf(::TaskRepository)
}

[Olivier Patry]

Yes, this would remove the warning indeed.
Is it expected to have the warning with the lambda though? It surprises me.