How to check whether a type is an enum in Kotlin?

Question

At runtime, I am trying to verify whether a particular KClass<out Any> is an enum type or not.

What is the best way to do so? Can this be done without relying on a particular runtime (e.g., JVM or JS)?

fun isEnum( type: KClass<out Any> ): Boolean
{
    ... ?
}

Answer 1

Also a JVM-only solution, but a shorter one, using isSubClassOf:

fun isEnum(type: KClass<out Any>) = type.isSubclassOf(Enum::class)

Answer 2

JVM specific

None of the solutions here where working for me (I had a KType) so I came up with another approach. Here is a solution for converting the KClass to a KType and then checking if the KType is an enum.

fun isEnum(kClass: KClass<out Any> ): Boolean {
    val kType :KType = kClass::class.createType()
    return (kType.javaType  as Class<*>).isEnum
}