feat: rename profiler to performance, typeless event emitter

pkg/emitter/emitter.go

@@ -2,40 +2,40 @@ package emitter
 
 import "git.maximhutz.com/max/lambda/pkg/set"
 
-type Observer[T any] struct {
-	fn      func(T)
+type Observer struct {
+	fn      func()
 	message string
-	emitter *Emitter[T]
+	emitter *Emitter
 }
 
-type Emitter[T any] struct {
-	listeners map[string]*set.Set[*Observer[T]]
+type Emitter struct {
+	listeners map[string]*set.Set[*Observer]
 }
 
 func Ignore[T any](fn func()) func(T) {
 	return func(T) { fn() }
 }
 
-func (e *Emitter[T]) On(message string, fn func(T)) *Observer[T] {
-	observer := &Observer[T]{
+func (e *Emitter) On(message string, fn func()) *Observer {
+	observer := &Observer{
 		fn:      fn,
 		message: message,
 		emitter: e,
 	}
 
 	if e.listeners == nil {
-		e.listeners = map[string]*set.Set[*Observer[T]]{}
+		e.listeners = map[string]*set.Set[*Observer]{}
 	}
 
 	if e.listeners[message] == nil {
-		e.listeners[message] = set.New[*Observer[T]]()
+		e.listeners[message] = set.New[*Observer]()
 	}
 
 	e.listeners[message].Add(observer)
 	return observer
 }
 
-func (o *Observer[T]) Off() {
+func (o *Observer) Off() {
 	if o.emitter.listeners[o.message] == nil {
 		return
 	}
@@ -43,12 +43,12 @@ func (o *Observer[T]) Off() {
 	o.emitter.listeners[o.message].Remove(o)
 }
 
-func (e *Emitter[T]) Emit(message string, value T) {
+func (e *Emitter) Emit(message string) {
 	if e.listeners[message] == nil {
 		return
 	}
 
 	for listener := range *e.listeners[message] {
-		listener.fn(value)
+		listener.fn()
 	}
 }