Jinseong Jeon
19 lines
313 B
Kotlin
Vendored
19 lines
313 B
Kotlin
Vendored
interface Callback {
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fun invoke(): String
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}
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open class Base(val callback: Callback)
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class Outer {
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val ok = "OK"
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inner class Inner : Base(
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object : Callback {
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override fun invoke() = ok
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}
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)
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}
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fun box(): String =
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Outer().Inner().callback.invoke()
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