I have a function which takes in a `KClass<T&gt...

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[bbaldino]

I have a function which takes in a KClass<T> and returns a function which takes a String and returns an instance `T`:

fun <T : Any> getterFor(valueType: KClass<T>): (String) -> T

One issue with this is that, due to type erasure, it doesn't work for things like List<Int>. I know `typeOf`/`KType` can help with this, but is there a typesafe way I can refer to a KType argument's type in the return type position? I.e. before I have T which matches between the argument (KClass<T>) and the return type T...is there a way to do that with KType?

fun getterFor(type: KType): (String) -> ???

[bbaldino]

I can do

fun <T : Any> getterFor(type: KType): (String) -> T

and then cast to T, but wondering if there's a way to 'enforce' a relationship between the KType and the return value's type

[Zach Klippenstein (he/him) [MOD]]

inline fun <reified T : Any> getterFor(): (String) -> T {
  @Suppress("UNCHECKED_CAST")
  return getterFor(typeOf<T>()) as (String) -> T
}

@PublishedApi internal fun getterFor(type: KType): (String) -> Any {
  …
}

[bbaldino]

🤦 Awesome. Thanks @Zach Klippenstein (he/him) [MOD].

[bbaldino]

I was trying to think of ways to use an intermediary function and that didn't occur to me.