func main() {
	vA := &Vertex{name:"vA",}
	vB := &Vertex{name:"vB",}
	vX := &Vertex{name:"vX",}
	vA.BaseValue = vX
	vB.BaseValue = vX
	_ = equalVertex(vA, vB, Flag(1))
}

var foo string

//go:noinline
func (v *Vertex) IsClosedStruct() bool {
	return true
}

func equalVertex(x *Vertex, v Value, flags Flag) bool {
	y, ok := v.(*Vertex)
	if !ok {
		return false
	}
	v, ok1 := x.BaseValue.(Value)