Ilya Matveev
13 lines
268 B
Kotlin
13 lines
268 B
Kotlin
interface Base
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class Derived: Base
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class Another: Base
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operator fun Base.inc(): Derived { return Derived() }
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public fun box() : String {
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var i : Base
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i = Another()
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val j = i++
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return if (j is Another && i is Derived) "OK" else "fail j = $j i = $i"
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}
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