If I have a `inline fun <reified T: Any?> fo...

# announcements

[rocketraman]

If I have a inline fun <reified T: Any?> foo(), where at my call-site T is a List<Something>, is there a way to determine Something inside the inline fun?

[fred.deschenes]

Unless you're sending the list to the function as a parameter or you're willing to have a more "precise" function for that case, I don't think so

[fred.deschenes]

something like inline fun <reified L, reified T: List<L>> fooList()

[fred.deschenes]

Otherwise you could do

inline fun <reified T: Any?> foo(t: T){
    if (T::class.isSubclassOf(List::class)) {
        val list = t as List<*>

        if (list.isNotEmpty()) {
            val itemType = list.first()!!.javaClass
        }
    }
}

but that's slightly dodgy

[rocketraman]

Yeah, I like the more precise function approach...