Mikhail Glukhikh
62 lines
1.1 KiB
Kotlin
Vendored
62 lines
1.1 KiB
Kotlin
Vendored
// !OPT_IN: kotlin.contracts.ExperimentalContracts
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// IGNORE_BACKEND: NATIVE
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// WITH_RUNTIME
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// KJS_WITH_FULL_RUNTIME
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import kotlin.contracts.*
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fun runOnce(action: () -> Unit) {
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contract {
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callsInPlace(action, InvocationKind.EXACTLY_ONCE)
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}
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action()
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}
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fun test1(): String {
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var res = ""
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for (s in listOf("OK")) {
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runOnce {
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res += s
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}
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}
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return res
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}
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fun test2(): String {
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var res = ""
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for (s: String in listOf("OK")) {
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runOnce {
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res += s
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}
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}
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return res
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}
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fun test3(): String {
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var res = ""
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for ((s, _) in listOf("OK" to "FAIL")) {
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runOnce {
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res += s
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}
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}
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return res
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}
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fun test4(): String {
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var res = ""
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for ((s: String, _) in listOf("OK" to "FAIL")) {
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runOnce {
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res += s
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}
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}
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return res
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}
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fun box(): String {
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test1().let { if (it != "OK") return "FAIL 1: $it" }
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test2().let { if (it != "OK") return "FAIL 2: $it" }
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test3().let { if (it != "OK") return "FAIL 3: $it" }
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test4().let { if (it != "OK") return "FAIL 4: $it" }
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return "OK"
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}
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