Mikhael Bogdanov
27 lines
595 B
Kotlin
27 lines
595 B
Kotlin
public open class TestDelegate<T: Any>(private val initializer: () -> T) {
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private volatile var value: T? = null
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public open fun get(thisRef: Any?, desc: PropertyMetadata): T {
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if (value == null) {
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value = initializer()
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}
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return value!!
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}
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public open fun set(thisRef: Any?, desc: PropertyMetadata, svalue : T) {
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value = svalue
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}
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}
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class A {}
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class B {}
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public val A.s: String by TestDelegate( {"OK2"})
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public val B.s: String by TestDelegate( {"OK"})
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fun box() : String {
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if (A().s != "OK2") return "fail1"
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return B().s
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}
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