import kotlin.reflect.KProperty

interface In<in T>
interface Out<out T>
interface Inv<T>

class Delegate<T> {
    operator fun getValue(t: Any, p: KProperty<*>): T = null!!
    operator fun setValue(t: Any, p: KProperty<*>, varue: T) {}
}

fun <T> getT(): T = null!!

abstract class Test<in I, out O, P> {
    abstract var type1: <!TYPE_VARIANCE_CONFLICT("I; in; invariant; I")!>I<!>
    abstract var type2: <!TYPE_VARIANCE_CONFLICT("O; out; invariant; O")!>O<!>
    abstract var type3: P
    abstract var type4: In<<!TYPE_VARIANCE_CONFLICT("I; in; invariant; In<I>")!>I<!>>
    abstract var type5: In<<!TYPE_VARIANCE_CONFLICT("O; out; invariant; In<O>")!>O<!>>

    <!TYPE_VARIANCE_CONFLICT("I; in; invariant; I")!>var implicitType1<!> = getT<I>()
    <!TYPE_VARIANCE_CONFLICT("O; out; invariant; O")!>var implicitType2<!> = getT<O>()
    var implicitType3 = getT<P>()
    <!TYPE_VARIANCE_CONFLICT("I; in; invariant; In<I>")!>var implicitType4<!> = getT<In<I>>()
    <!TYPE_VARIANCE_CONFLICT("O; out; invariant; In<O>")!>var implicitType5<!> = getT<In<O>>()

    <!TYPE_VARIANCE_CONFLICT("I; in; invariant; I")!>var delegateType1<!> by Delegate<I>()
    <!TYPE_VARIANCE_CONFLICT("O; out; invariant; O")!>var delegateType2<!> by Delegate<O>()
    var delegateType3 by Delegate<P>()
    <!TYPE_VARIANCE_CONFLICT("I; in; invariant; In<I>")!>var delegateType4<!> by Delegate<In<I>>()
    <!TYPE_VARIANCE_CONFLICT("O; out; invariant; In<O>")!>var delegateType5<!> by Delegate<In<O>>()

    abstract var I.receiver1: Int
    abstract var <!TYPE_VARIANCE_CONFLICT("O; out; in; O")!>O<!>.receiver2: Int
    abstract var P.receiver3: Int
    abstract var In<<!TYPE_VARIANCE_CONFLICT("I; in; out; In<I>")!>I<!>>.receiver4: Int
    abstract var In<O>.receiver5: Int

    var <X : I> X.typeParameter1: Int get() = 0; set(<!UNUSED_PARAMETER!>i<!>) {}
    var <X : <!TYPE_VARIANCE_CONFLICT("O; out; in; O")!>O<!>> X.typeParameter2: Int get() = 0; set(<!UNUSED_PARAMETER!>i<!>) {}
    var <X : P> X.typeParameter3: Int get() = 0; set(<!UNUSED_PARAMETER!>i<!>) {}
    var <X : In<<!TYPE_VARIANCE_CONFLICT("I; in; out; In<I>")!>I<!>>> X.typeParameter4: Int get() = 0; set(<!UNUSED_PARAMETER!>i<!>) {}
    var <X : In<O>> X.typeParameter5: Int get() = 0; set(<!UNUSED_PARAMETER!>i<!>) {}

    var <X> X.typeParameter6: Int where X : I get() = 0; set(<!UNUSED_PARAMETER!>i<!>) {}
    var <X> X.typeParameter7: Int where X : <!TYPE_VARIANCE_CONFLICT("O; out; in; O")!>O<!> get() = 0; set(<!UNUSED_PARAMETER!>i<!>) {}
    var <X> X.typeParameter8: Int where X : P get() = 0; set(<!UNUSED_PARAMETER!>i<!>) {}
    var <X> X.typeParameter9: Int where X : In<<!TYPE_VARIANCE_CONFLICT("I; in; out; In<I>")!>I<!>> get() = 0; set(<!UNUSED_PARAMETER!>i<!>) {}
    var <X> X.typeParameter0: Int where X : In<O> get() = 0; set(<!UNUSED_PARAMETER!>i<!>) {}
}