Dmitriy Novozhilov
38 lines
1.0 KiB
Kotlin
Vendored
38 lines
1.0 KiB
Kotlin
Vendored
// FIR_IDENTICAL
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// !CHECK_TYPE
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//KT-2324 Can't resolve generic by type of function result
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package i
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//+JDK
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import java.util.*
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import checkSubtype
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fun <T, K> someFunction(list: List<T>, transform: (T) -> K): List<K> {
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val result = arrayList<K>()
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for (i in list) {
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result.add(transform(i))
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}
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return result
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}
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fun testSomeFunction() {
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val result1 = someFunction(arrayList<Int>(1, 2), {checkSubtype<Int>(it)}) //type of result1 is List<Int>
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assertEquals(1, result1.get(0)); //OK
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val result2 = someFunction(arrayList<Int>(1, 2), {it}) // type of result2 is List<DONT_CARE>
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checkSubtype<List<Int>>(result2)
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assertEquals(1, result2.get(0)); //resolved to error element
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}
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//---------------------------------
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fun assertEquals(expected: Any?, actual: Any?, message: String = "") {
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}
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fun <T> arrayList(vararg values: T) : ArrayList<T> = values.toCollection(ArrayList<T>(values.size))
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fun <T, C: MutableCollection<in T>> Array<T>.toCollection(result: C) : C {
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for (element in this) result.add(element)
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return result
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}
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