Is there a way to add a method to an enum class wi...

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[Fudge]

Is there a way to add a method to an enum class without reflection?
If I have

enum class Test{
foo
}

Then kotlin comes built in with values(), valueOf(), but how can I add a new helper method like getValueNames()?

[gildor]

Do you need Test.getValueNames?

[gildor]

You can use companion object for this, same for any other class

[Fudge]

Yes but I want it to work polymorphicly

kotlin
interface SecondName{
   val str : String
}

enum Test(override val str : String) : SecondName{
One(“1”),Two(“2”)
}

//and then do something like 
fun <T>class<T>.allSecondNames() where T: SecondName, T: Enum<T>{
return values().map{it.str}
}

//and then do
val names = Test.allSecondNames()

[gildor]

Which is pretty different from you original question

[gildor]

Honestly I don't like this approach that requires this complicated polymorphism with enum and interface, are you sure that you really need this for enum? Maybe just extension for Collection<SecondName> would be enough?