Andrey Breslav
16 lines
331 B
Kotlin
16 lines
331 B
Kotlin
trait Either<out A, out B>
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trait Left<out A>: Either<A, Nothing>
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trait Right<out B>: Either<Nothing, B>
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class C1(val v1: Int)
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class C2(val v2: Int)
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fun _as_left(e: Either<C1, C2>): Any? {
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val v = e as? Left
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return v: Left<C1>?
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}
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fun _as_right(e: Either<C1, C2>): Any? {
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val v = e as? Right
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return v: Right<C2>?
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} |