Ilya Matveev
19 lines
223 B
Kotlin
19 lines
223 B
Kotlin
interface A {
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val method : (() -> Unit)?
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}
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fun test(a : A) {
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if (a.method != null) {
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a.method!!()
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}
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}
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class B : A {
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override val method = { }
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}
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fun box(): String {
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test(B())
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return "OK"
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}
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