Svyatoslav Kuzmich
42 lines
1.0 KiB
Kotlin
Vendored
42 lines
1.0 KiB
Kotlin
Vendored
// KJS_WITH_FULL_RUNTIME
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// EXPECTED_REACHABLE_NODES: 1545
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package foo
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// CHECK_CALLED: doFilter
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// CHECK_NOT_CALLED: filterIsInstance
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data class A(val x: Int)
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data class B(val x: Int)
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// filter from stdlib is not used, because it's important,
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// that filter function is not inline. When lambda is
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// not inlined and captures some local variable,
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// the test crashes on runtime (it's expected behaviour).
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fun <T> Array<T>.doFilter(fn: (T)->Boolean): List<T> {
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val filtered = arrayListOf<T>()
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for (i in 0..lastIndex) {
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val element = this[i]
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if (fn(element)) {
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filtered.add(element)
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}
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}
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return filtered
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}
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inline fun <reified T> filterIsInstance(arrayOfAnys: Array<Any>): List<T> {
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return arrayOfAnys.doFilter { it is T }.map { it as T }
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}
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fun box(): String {
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val src: Array<Any> = arrayOf(A(1), B(2), A(3), B(4))
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assertEquals(listOf(A(1), A(3)), filterIsInstance<A>(src))
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assertEquals(listOf(B(2), B(4)), filterIsInstance<B>(src))
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return "OK"
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}
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