24 lines
635 B
Kotlin
Vendored
24 lines
635 B
Kotlin
Vendored
// !LANGUAGE: +AllowContractsForCustomFunctions +ReadDeserializedContracts +AllowContractsForNonOverridableMembers +AllowReifiedGenericsInContracts
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// !OPT_IN: kotlin.contracts.ExperimentalContracts
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@file:Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE")
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package test
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import kotlin.contracts.*
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inline fun <reified T> requireIsInstance(value: Any?) {
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contract {
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returns() implies (value is T)
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}
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if (value !is T) {
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throw IllegalArgumentException()
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}
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}
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inline fun <reified T, reified U> cast(value: Any?, z: U): T {
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contract {
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returns() implies (value is T)
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}
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return value as T
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}
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