Dmitriy Novozhilov
33 lines
581 B
Kotlin
Vendored
33 lines
581 B
Kotlin
Vendored
open class A<T> {
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open fun foo(t: T) = "A"
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}
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open class B<T> : A<T>()
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open class C : B<String>() {
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override fun foo(t: String) = "C"
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}
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open class D : C()
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class Z : D() {
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override fun foo(t: String) = "Z"
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}
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fun box(): String {
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val z = Z()
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val d: D = z
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val c: C = z
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val b: B<String> = z
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val a: A<String> = z
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return when {
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z.foo("") != "Z" -> "Fail #1"
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d.foo("") != "Z" -> "Fail #2"
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c.foo("") != "Z" -> "Fail #3"
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b.foo("") != "Z" -> "Fail #4"
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a.foo("") != "Z" -> "Fail #5"
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else -> "OK"
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}
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}
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