Files
kotlin/compiler/testData/codegen/box/polymorphicSignature/invoke.kt
Alexander Udalov 7eda60d57e Minor, add more tests on signature-polymorphic calls
Add a test on null (since null is a special case in the
PolymorphicSignature spec), and a test on a call without assignment to a
variable
2019-12-17 18:44:19 +01:00

51 lines
1.4 KiB
Kotlin
Vendored

// !LANGUAGE: +PolymorphicSignature
// IGNORE_BACKEND_FIR: JVM_IR
// TARGET_BACKEND: JVM
// FULL_JDK
// SKIP_JDK6
// WITH_RUNTIME
import java.lang.invoke.MethodHandles
import java.lang.invoke.MethodType
open class Base
class Derived : Base() {
override fun toString() = "!"
}
class C {
fun foo(s: String, d: Double?, x: Base): String = "$s$d$x"
}
@Target(AnnotationTarget.EXPRESSION)
@Retention(AnnotationRetention.SOURCE)
annotation class IrrelevantAnnotation
fun box(): String {
val mh = MethodHandles.lookup().findVirtual(
C::class.java, "foo",
MethodType.methodType(String::class.java, String::class.java, Double::class.javaObjectType, Base::class.java)
)
val result1: String = mh.invoke(C(), "Hello", 0.01, Derived()) as String
if (result1 != "Hello0.01!") return "Fail 1: $result1"
// Check parenthesized/annotated expressions + invoke via "()"
val result2 = (@IrrelevantAnnotation() ((mh(C(), (("Hello")), 0.01, Derived())))) as String
if (result1 != result2) return "Fail 2: $result1 != $result2"
// Check deep qualified expressions
val o = object {
val p = object {
val handle = mh
}
}
val result3 = (o.p).handle.invoke(C(), "Hello", 0.01, Derived()) as String
if (result1 != result3) return "Fail 3: $result1 != $result3"
// Check cast expression without assignment to a variable
mh.invoke(C(), "", 0.01, Derived()) as String
return "OK"
}