How can I make an extension function to wrap this Java `mappingFunction` ` Nullable V get NonNull K key NonNull Function lt super K extends V gt mappingFunction ` I really don t know what could be wrong ```suspend inline fun lt reified K Any reified V Any gt Cache lt K V gt get key K crossinline mappingFunction suspend K gt V V = get key runBlocking mappingFunction it ``` it s probably related to the generics face with head bandage

Yup that s what I did thanks for the info about member functions slightly smiling face

How can I make an extension function to wrap this Java `mapp kotlinlang #announcements

07/28/2019, 2:07 PM

How can I make an extension function to wrap this Java

mappingFunction

@Nullable  V get(@NonNull K key, @NonNull Function<? super K, ? extends V> mappingFunction);

I really don't know what could be wrong:

suspend inline fun <reified K : Any, reified V : Any> Cache<K, V>.get(key: K, crossinline mappingFunction: suspend (K) -> V): V? =
	get(key) { runBlocking { mappingFunction(it) } }

it's probably related to the generics... 🤕

07/28/2019, 2:33 PM

Member functions have precedence.

Oh but this is suspend. Nvm.

07/28/2019, 2:33 PM

I think you're right... I tried renaming it and the IDEA did except it...

I just wonder why... to the compiler the params are different...?

07/28/2019, 2:35 PM

When you call it, do you actually use suspension?

07/28/2019, 2:35 PM

07/28/2019, 2:38 PM

Hmm, to save you time, just rename it.

07/28/2019, 2:45 PM

Yup, that's what I did, thanks for the info about member functions... 🙂