I am trying to access the companion object of an unknown class with a known interface, given an instance of the class.
Code below:
class AccessTest() {
companion object {
val prop = 5
}
fun getComp() {
print(this)
print(this::class)
print(this::class.companionObject) // Unresolved reference.
print(this::class.companionObjectInstance) // Unresolved reference.
}
}
inline fun <reified T> getCompanion() {
print(T::class.companionObject) // Unresolved reference.
print(T::class.companionObjectInstance) // Unresolved reference.
}
fun main() {
AccessTest().getComp()
getCompanion<AccessTest>()
}
Output:
$ kotlinc -d main.jar main.kt && kotlin -classpath main.jar MainKt
main.kt:8:27: error: unresolved reference: companionObject
print(this::class.companionObject) // Unresolved reference.
^
main.kt:9:27: error: unresolved reference: companionObjectInstance
print(this::class.companionObjectInstance) // Unresolved reference.
^
main.kt:14:20: error: unresolved reference: companionObject
print(T::class.companionObject) // Unresolved reference.
^
main.kt:15:20: error: unresolved reference: companionObjectInstance
print(T::class.companionObjectInstance) // Unresolved reference.
^
I do not think this is a duplicate of either of the below questions, as I am specifically asking what has changed or what I am misunderstanding such that the solution in the two below questions is not working for me:
how to access companion object from object instance in kotlin?
