Mikhail Glukhikh
f6872dfbea
When on sealed can use is (both for derived classes and objects) or just comparison (only for derived objects). A pack of tests provided.
17 lines
395 B
Kotlin
Vendored
17 lines
395 B
Kotlin
Vendored
sealed class Sealed() {
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object First: Sealed()
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open class NonFirst: Sealed() {
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object Second: NonFirst()
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object Third: NonFirst()
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// It's ALLOWED to inherit Sealed also from here
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object Fourth: Sealed()
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}
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}
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fun foo(s: Sealed) = when(s) {
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Sealed.First -> 1
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is Sealed.NonFirst -> 2
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Sealed.NonFirst.Fourth -> 4
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// no else required
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}
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