Stanislav Erokhin
15 lines
421 B
Kotlin
Vendored
15 lines
421 B
Kotlin
Vendored
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// completion order here: X, Y, WHEN_VARIABLE
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fun <T> List<T>.optimizeReadOnlyList() = when (size) {
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0 -> emptyList() // here type variable Y will be fixed to Nothing
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1 -> listOf(this[0])
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else -> this
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}
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fun <X> listOf(<!UNUSED_PARAMETER!>element<!>: X): List<X> = TODO()
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fun <Y> emptyList(): List<Y> = TODO()
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fun test(l: List<String>): List<String> {
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val foo = l.optimizeReadOnlyList()
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return foo
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} |