RemoveListener not support closure function

[RelicOfTesla]

func makeFn(a int) event.ListenerFunc {
	return func(e event.Event) error {
		fmt.Println(a)
		return nil
	}
}
func main() {
	evBus := event.NewManager("")
	f1 := makeFn(11)
	evBus.On("evt1", f1)
	f2 := makeFn(22)
	evBus.On("evt1", f2)
	evBus.RemoveListener("evt1", f1) // DON'T REMOVE ALL !!!
	evBus.MustFire("evt1", event.M{"arg0": "val0", "arg1": "val1"})
}

[intrntbrn]

The issue is that "%p" is equal for f1 and f2.

You can work around this issue by using new:

f1 := makeFn(11)
l := new(event.ListenerFunc)
*l = f1
evBus.On("evt1", l)
f2 := makeFn(22)
evBus.On("evt1", f2)