it works with `Any` if its not a `List` kotlinlang #announcements

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Title

p

pawel.rybicki

07/12/2017, 1:37 PM

it works with

Any

if its not a

List

a

agomez

07/12/2017, 1:39 PM

your problem is with type erasure and generic types

also you cant check for

is List<Audi>

for the same reason

x

xantier

07/12/2017, 1:44 PM

You will get close with reification

a

agomez

07/12/2017, 1:44 PM

i mean, inside an

if

condition

x

xantier

07/12/2017, 1:44 PM

inline fun <reified T>createColorsResources(carModel: List<T>): String {
    return when {
        T::class == Audi::class -> "audi"
        else                    -> "not audi"
    }
}

fun main(args: Array<String>) {
    println(createColorsResources(listOf(Audi())))
    println(createColorsResources(listOf(Audi(), NotAudi())))
    println(createColorsResources(listOf(NotAudi())))
}
class Audi
class NotAudi

p

pawel.rybicki

07/12/2017, 1:50 PM

oh

that would work Im not sure if its worth tho : )

would have to refactor a bit since my function is overrided I belive it cannot be done like that

Also I cannot access the class properties (which is smth I need)

return when { T::class == Audi::class -> carVariable.speed else -> "not audi" }

like in classic 'is' case : P

x

xantier

07/12/2017, 2:22 PM

what's carVariable in this case?

p

pawel.rybicki

07/13/2017, 7:24 AM

instance of argument passed to func or smth

carModel*

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