Files
kotlin-fork/compiler/testData/codegen/box/reflection/mapping/jvmStatic/companionObjectFunction.kt
T
Alexander Udalov c357967c2c JVM IR: generate Kotlin metadata
Introduce MetadataSource as a way to store the original descriptor for
any element (before any lowerings) and maintain it until the end of the
codegen where it's used in generating the metadata. Note that JVM
signatures written to the metadata are formed from the _resulting_
generated elements, not by mapping the original descriptors.

Some corner cases are not supported yet, namely properties declared in
companion objects, synthetic methods for property annotations,
JvmPackageName, etc.

 #KT-29119 Fixed
2019-02-19 16:37:47 +01:00

38 lines
1016 B
Kotlin
Vendored

// TARGET_BACKEND: JVM
// WITH_REFLECT
import kotlin.reflect.KFunction
import kotlin.reflect.jvm.*
import kotlin.test.*
class C {
companion object {
@JvmStatic
fun foo(s: String): Int = s.length
}
}
fun box(): String {
val foo = C.Companion::class.members.single { it.name == "foo" } as KFunction<*>
val j = foo.javaMethod ?: return "Fail: no Java method found for C::foo"
assertEquals(3, j.invoke(C, "abc"))
val k = j.kotlinFunction ?: return "Fail: no Kotlin function found for Java method C::foo"
assertEquals(3, k.call(C, "def"))
val staticMethod = C::class.java.getDeclaredMethod("foo", String::class.java)
val k2 = staticMethod.kotlinFunction ?:
return "Fail: no Kotlin function found for static bridge for @JvmStatic method in companion object C::foo"
assertEquals(3, k2.call(C, "ghi"))
assertFailsWith(NullPointerException::class) { k2.call(null, "")!! }
val j2 = k2.javaMethod
assertEquals(j, j2)
return "OK"
}