Anastasia.Nekrasova
ad9025afa6
At the moment, SubclassOptInRequired is marked with the ExperimentalSubclassOptIn annotation. However, it does not work as expected due to a missing opt-in error. To use SubclassOptInRequired, an explicit opt-in is necessary because SubclassOptInRequired is an unstable feature now. ^KT-64739
33 lines
1.3 KiB
Kotlin
Vendored
33 lines
1.3 KiB
Kotlin
Vendored
// FIR_IDENTICAL
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@file:OptIn(ExperimentalSubclassOptIn::class)
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@RequiresOptIn
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annotation class ApiMarker
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@SubclassOptInRequired(ApiMarker::class)
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interface Interface
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fun foo() {
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// error: inheriting Interface requires an explicit opt-in
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open class LocalOpenKlassA: <!OPT_IN_USAGE_ERROR!>Interface<!>
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abstract class LocalAbstractKlassA: <!OPT_IN_USAGE_ERROR!>Interface<!>
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class LocalKlassA: <!OPT_IN_USAGE_ERROR!>Interface<!>
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data class LocalDataKlassA(val arg: Int): <!OPT_IN_USAGE_ERROR!>Interface<!>
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object: <!OPT_IN_USAGE_ERROR!>Interface<!> {}
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// opt-in is present, no errors
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@OptIn(ApiMarker::class) open class LocalOpenKlassB: Interface
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@OptIn(ApiMarker::class) abstract class LocalAbstractKlassB: Interface
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@OptIn(ApiMarker::class) class LocalKlassB: Interface
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@OptIn(ApiMarker::class) data class LocalDataKlassB(val arg: Int): Interface
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@OptIn(ApiMarker::class) object: Interface {}
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// requiring to opt-in into local classifiers works as well
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// (even though it doesn't make that much sense)
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@ApiMarker open class LocalOpenKlassC: Interface
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@ApiMarker abstract class LocalAbstractKlassC: Interface
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@ApiMarker class LocalKlassC: Interface
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@ApiMarker data class LocalDataKlassC(val arg: Int): Interface
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@ApiMarker object: Interface {}
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}
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