Mikhail Glukhikh
20 lines
358 B
Kotlin
Vendored
20 lines
358 B
Kotlin
Vendored
// !USE_EXPERIMENTAL: kotlin.contracts.ExperimentalContracts
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// IGNORE_BACKEND: NATIVE
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import kotlin.contracts.*
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public fun myrun(block: () -> Unit) {
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contract {
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callsInPlace(block, InvocationKind.EXACTLY_ONCE)
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}
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block()
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}
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fun box(): String {
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val x: Long
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myrun {
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x = 1L
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}
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return if (x != 1L) "FAIL" else "OK"
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}
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