Alexander Udalov
28 lines
830 B
Kotlin
Vendored
28 lines
830 B
Kotlin
Vendored
// TARGET_BACKEND: JVM
|
|
// JVM_TARGET: 1.8
|
|
// SAM_CONVERSIONS: INDY
|
|
// LAMBDAS: INDY
|
|
|
|
// CHECK_BYTECODE_TEXT
|
|
// JVM_IR_TEMPLATES
|
|
// 1 java/lang/invoke/LambdaMetafactory
|
|
|
|
// ^ Since indy for SAM types with contravariant projections is disabled (see genericWithInProjection.kt), the bytecode in this test is
|
|
// suboptimal. The lambda is generated via invokedynamic LambdaMetafactory and then wrapped into an instance of Cmp.
|
|
// The optimal way would be to generate the Cmp instance via invokedynamic LambdaMetafactory directly.
|
|
|
|
fun interface Cmp<T> {
|
|
fun compare(a: T, b: T): Int
|
|
}
|
|
|
|
fun <T> foo(comparator: Cmp<in T>, a: T, b: T) = comparator.compare(a, b)
|
|
|
|
fun bar(x: Int, y: Int) = foo({ a, b -> a - b}, x, y)
|
|
|
|
fun box(): String {
|
|
val t = bar(42, 117)
|
|
if (t != -75)
|
|
return "Failed: t=$t"
|
|
return "OK"
|
|
}
|