Golang pass nil value as an interface through reflection

I have a function with interface argument:

func f(e error) {
    if e == nil {
        fmt.Println("YEY! NIL") // how to get here?
    } else {
        fmt.Println("NOT NIL :(")
    }
}

How do I pass it a nil value via reflect so that it passes == nil check?

Approach 1:

func main() {
    rf := reflect.ValueOf(f)

    nilArg := reflect.Zero(reflect.TypeOf((error)(nil))) // panic: reflect: Zero(nil)

    rf.Call([]reflect.Value{nilArg})
}

Approach 2:

type MyError struct{}
func (e MyError) Error() string {
    return ""
}

func main() {
    rf := reflect.ValueOf(f)
    nilArg := reflect.Zero(reflect.TypeOf(&MyError{})) // NOT NIL :(

    rf.Call([]reflect.Value{nilArg})
}

Second approach doesn't work due to http://ift.tt/1w7Y2Qr

Playground: http://ift.tt/2r7E5Jc