Svetlana Isakova
20 lines
520 B
Kotlin
20 lines
520 B
Kotlin
//KT-2856 Fix the getOrElse signature to be able to return any supertype of V
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package d
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import java.util.HashMap
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public inline fun <K,V1, V: V1> Map<K,V>.getOrElse1(key: K, defaultValue: ()-> V1) : V1 {
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if (this.containsKey(key)) {
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return this.get(key) as V
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} else {
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return defaultValue()
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}
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}
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fun main(args: Array<String>) {
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val map = HashMap<Int, Int>()
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println(map.getOrElse1(2, { null })) // Error
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}
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//from standard library
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fun println(<!UNUSED_PARAMETER!>message<!> : Any?) {} |