Ilmir Usmanov
53 lines
2.0 KiB
Kotlin
Vendored
53 lines
2.0 KiB
Kotlin
Vendored
// WITH_STDLIB
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// WORKS_WHEN_VALUE_CLASS
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// LANGUAGE: +ValueClasses, +GenericInlineClassParameter
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OPTIONAL_JVM_INLINE_ANNOTATION
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value class AsAny<T>(val x: T)
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OPTIONAL_JVM_INLINE_ANNOTATION
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value class AsInt<T: Int>(val x: T)
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inline fun <reified T> Any?.checkcast(): T = this as T
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object Reference {
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fun <T, R> transform(a: AsAny<T>): AsAny<R> = a as AsAny<R>
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fun <T, R> transformNullable(a: AsAny<T>?): AsAny<R> = a as AsAny<R>
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fun <T, R> transformToNullable(a: AsAny<T>): AsAny<R>? = a as AsAny<R>
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fun <T, R> transformToNullableTarget(a: AsAny<T>): AsAny<R>? = a as AsAny<R>?
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fun <T, R> transformNullableToNullableTarget(a: AsAny<T>?): AsAny<R>? = a as AsAny<R>?
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}
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object Primitive {
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fun <T: Int> transform(a: AsInt<T>): AsInt<T> = a as AsInt<T>
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fun <T: Int> transformNullable(a: AsInt<T>?): AsInt<T> = a as AsInt<T>
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fun <T: Int> transformToNullable(a: AsInt<T>): AsInt<T>? = a as AsInt<T>
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fun <T: Int> transformToNullableTarget(a: AsInt<T>): AsInt<T>? = a as AsInt<T>?
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fun <T: Int> transformNullableToNullableTarget(a: AsInt<T>?): AsInt<T>? = a as AsInt<T>?
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}
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fun box(): String {
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val a = AsAny<Int>(42)
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val b1 = Reference.transform<Int, Number>(a)
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val b2 = Reference.transformNullable<Int, Number>(a)
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val b3 = Reference.transformToNullable<Int, Number>(a)
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val b4 = Reference.transformToNullableTarget<Int, Number>(a)
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val b5 = Reference.transformNullableToNullableTarget<Int, Number>(a)
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val b6 = Reference.transformNullableToNullableTarget<Int, Number>(null)
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val b7 = a.checkcast<AsAny<Number>>()
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if (b7.x != a.x) return "Fail 1"
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val c = AsInt(42)
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val d1 = Primitive.transform(c)
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val d2 = Primitive.transformNullable(c)
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val d3 = Primitive.transformToNullable(c)
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val d4 = Primitive.transformToNullableTarget(c)
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val d5 = Primitive.transformNullableToNullableTarget(c)
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val d6 = Primitive.transformNullableToNullableTarget<Int>(null)
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val d7 = c.checkcast<AsInt<Int>>()
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if (d7.x != c.x) return "Fail 2"
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return "OK"
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} |