Andrey Breslav
18 lines
336 B
Kotlin
18 lines
336 B
Kotlin
trait Either<out A, out B>
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trait Left<out A>: Either<A, Nothing> {
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val value: A
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}
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trait Right<out B>: Either<Nothing, B> {
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val value: B
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}
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class C1(val v1: Int)
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class C2(val v2: Int)
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fun _when(e: Either<C1, C2>): Any {
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return when (e) {
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is Left -> e.value.v1
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is Right -> e.value.v2
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else -> e
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}
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} |