zhelenskiy
33 lines
874 B
Kotlin
Vendored
33 lines
874 B
Kotlin
Vendored
// WITH_RUNTIME
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enum class En { N, A, B, C }
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@JvmInline
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value class Z1(val x: En)
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@JvmInline
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value class Z2(val z: Z1)
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@JvmInline
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value class ZN(val z: Z1?)
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fun wrap1(x: En): Z1? = if (x.ordinal == 0) null else Z1(x)
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fun wrap2(x: En): Z2? = if (x.ordinal == 0) null else Z2(Z1(x))
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fun wrapN(x: En): ZN? = if (x.ordinal == 0) null else ZN(Z1(x))
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fun box(): String {
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val n = En.N
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val a = En.A
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if (wrap1(n) != null) throw AssertionError()
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if (wrap1(a) == null) throw AssertionError()
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if (wrap1(a)!!.x != a) throw AssertionError()
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if (wrap2(n) != null) throw AssertionError()
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if (wrap2(a) == null) throw AssertionError()
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if (wrap2(a)!!.z.x != a) throw AssertionError()
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if (wrapN(n) != null) throw AssertionError()
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if (wrapN(a) == null) throw AssertionError()
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if (wrapN(a)!!.z!!.x != a) throw AssertionError()
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return "OK"
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} |