12 lines
400 B
Kotlin
Vendored
12 lines
400 B
Kotlin
Vendored
// LANGUAGE: +ContractSyntaxV2
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import kotlin.contracts.*
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fun calculateNumber(block: () -> Int): Int contract <!UNSUPPORTED!>[
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callsInPlace(block, InvocationKind.EXACTLY_ONCE)
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]<!> = block()
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fun <R> calculateResult(num: Int?, calculate: (Int?) -> R): R contract <!UNSUPPORTED!>[
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callsInPlace(calculate, InvocationKind.EXACTLY_ONCE),
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returns() implies (num != null)
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]<!> = calculate(num)
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