Files
kotlin/compiler/testData/codegen/box/builtinStubMethods/Collection.kt
2019-11-19 11:00:09 +03:00

35 lines
1.0 KiB
Kotlin
Vendored

// IGNORE_BACKEND_FIR: JVM_IR
// TARGET_BACKEND: JVM
class MyCollection<T>: Collection<T> {
override val size: Int get() = 0
override fun isEmpty(): Boolean = true
override fun contains(o: T): Boolean = false
override fun iterator(): Iterator<T> = throw UnsupportedOperationException()
override fun containsAll(c: Collection<T>): Boolean = false
override fun hashCode(): Int = 0
override fun equals(other: Any?): Boolean = false
}
fun expectUoe(block: () -> Any) {
try {
block()
throw AssertionError()
} catch (e: UnsupportedOperationException) {
}
}
fun box(): String {
val myCollection = MyCollection<String>()
val collection = myCollection as java.util.Collection<String>
expectUoe { collection.add("") }
expectUoe { collection.remove("") }
expectUoe { collection.addAll(myCollection) }
expectUoe { collection.removeAll(myCollection) }
expectUoe { collection.retainAll(myCollection) }
expectUoe { collection.clear() }
return "OK"
}