Andrey Breslav
24 lines
837 B
Kotlin
24 lines
837 B
Kotlin
// KT-1410 Compiler does automatically infer type argument when using variance
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//+JDK
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package d
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public fun <T> MutableCollection<out T>.filterToMy(result : MutableList<in T>, filter : (T) -> Boolean) : MutableCollection<out T> {
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for (t in this){
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if (filter(t)){
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result.add(t)
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}
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}
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return this
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}
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fun foo(result: MutableList<in String>, val collection: MutableCollection<String>, prefix : String){
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collection.filterToMy(result, {it.startsWith(prefix)})
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}
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fun test(result: MutableList<in Any>, val collection: MutableCollection<String>, prefix : String){
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val c = collection.filterToMy(result, {it.startsWith(prefix)})
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c: MutableCollection<out String>
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}
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//from library
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fun String.startsWith(<!UNUSED_PARAMETER!>prefix<!>: String) : Boolean {<!NO_RETURN_IN_FUNCTION_WITH_BLOCK_BODY!>}<!> |