// !LANGUAGE: +NewInference
// !DIAGNOSTICS: -UNUSED_VARIABLE -UNUSED_PARAMETER

interface Bound
class Cls : Bound

class Inv<T>(val prop: T)
class In<in I>(param: I)
class InB<in I : Bound>(param: I)
class Out<out O>(val prop: O)

fun <K> id(arg: K): K = arg
fun <W> makeInv(arg: W): Inv<W> = TODO()
fun <O> wrapOut(arg: O): Inv<out O> = TODO()
fun <I> wrapIn(arg: I): Inv<in I> = TODO()

fun test1(cls: Cls) {
    id(
        <!DEBUG_INFO_EXPRESSION_TYPE("Inv<Cls>")!>Inv(cls)<!>
    )
}

fun test2(cls: Cls) {
    id<Inv<Bound>>(
        <!DEBUG_INFO_EXPRESSION_TYPE("Inv<Bound>")!>Inv(cls)<!>
    )
}

fun test3(cls: Cls) {
    id<Out<Bound>>(
        <!DEBUG_INFO_EXPRESSION_TYPE("Out<Cls>")!>Out(cls)<!>
    )
}

fun test4(cls: Cls) {
    id(
        <!DEBUG_INFO_EXPRESSION_TYPE("Out<Cls>")!>Out(cls)<!>
    )
}

fun test5(cls: Cls) {
    id(
        <!DEBUG_INFO_EXPRESSION_TYPE("In<Cls>")!>In(cls)<!>
    )
}

fun test6(cls: Cls) {
    id<In<Bound>>(
        <!DEBUG_INFO_EXPRESSION_TYPE("In<Bound>")!>In(cls)<!>
    )
}

fun test7(cls: Cls) {
    id(
        <!DEBUG_INFO_EXPRESSION_TYPE("Inv<out Cls>")!>wrapOut(cls)<!>
    )
}

fun test8(cls: Cls) {
    id(
        <!DEBUG_INFO_EXPRESSION_TYPE("Inv<in Cls>")!>wrapIn(cls)<!>
    )
}

fun test9(cls: Cls) {
    id(
        <!DEBUG_INFO_EXPRESSION_TYPE("InB<Cls>")!>InB(cls)<!>
    )
}