Cast internal class object to public interface fails in Swift

[laviallb]

When I declare in Kotlin :

public interface InterA {}
internal class ClassA: InterA {}

And expose in Swift an InterA backed by a ClassA instance,
Some cast operations fail:

    private func getObject<T>(_ value: InterA) -> T? {
        let castedValue = value as? T // nil
        let test1 = value is T // false
        let test2 = value is InterA // true
        let test3 = T.self == InterA.self // true
        return castedValue
    }

    let inter: InterA? = getObject(commonManager.api.a) // commonManager.api.a is a ClassA

It is not possible to cast value in T, even if T is InterA. If I change getObject to take value as Any, even test2 fails.

Everything works well if ClassA is public.

The use case behind that issue is to be able tu use a DI framework such as Swinject.

[SvyatoslavScherbina]

Confirmed, thank you for the report.