update map

pkg/maps/generic.go

@@ -2,15 +2,15 @@ package maps
 
 import "sync"
 
-type GenericMap[K comparable, V any] struct {
-	m sync.Map
+type Map[K comparable, V any] struct {
+	m *sync.Map
 }
 
-func (gm *GenericMap[K, V]) Store(key K, value V) {
+func (gm *Map[K, V]) Store(key K, value V) {
 	gm.m.Store(key, value)
 }
 
-func (gm *GenericMap[K, V]) Load(key K) (V, bool) {
+func (gm *Map[K, V]) Load(key K) (V, bool) {
 	value, ok := gm.m.Load(key)
 	if !ok {
 		var zero V
@@ -19,39 +19,54 @@ func (gm *GenericMap[K, V]) Load(key K) (V, bool) {
 	return value.(V), true
 }
 
-func (gm *GenericMap[K, V]) Delete(key K) {
+func (gm *Map[K, V]) Delete(key K) {
 	gm.m.Delete(key)
 }
 
-func (gm *GenericMap[K, V]) Range(f func(key K, value V) bool) {
+func (gm *Map[K, V]) Range(f func(key K, value V) bool) {
 	gm.m.Range(func(key, value any) bool {
 		return f(key.(K), value.(V))
 	})
 }
 
-func (gm *GenericMap[K, V]) Swap(key K, value V) (previous V, loaded bool) {
+func (gm *Map[K, V]) Swap(key K, value V) (previous V, loaded bool) {
 	actual, swapped := gm.m.Swap(key, value)
 	return actual.(V), swapped
 }
 
-func (gm *GenericMap[K, V]) LoadOrStore(key K, value V) (V, bool) {
+func (gm *Map[K, V]) Len() int {
+	var n int
+	gm.m.Range(func(key, value any) bool {
+		n++
+		return true
+	})
+	return n
+}
+
+func (gm *Map[K, V]) Clear() {
+	gm.m.Clear()
+}
+
+func (gm *Map[K, V]) LoadOrStore(key K, value V) (V, bool) {
 	actual, loaded := gm.m.LoadOrStore(key, value)
 	return actual.(V), loaded
 }
 
-func (gm *GenericMap[K, V]) LoadAndDelete(key K) (value V, loaded bool) {
+func (gm *Map[K, V]) LoadAndDelete(key K) (value V, loaded bool) {
 	actual, loaded := gm.m.LoadAndDelete(key)
 	return actual.(V), loaded
 }
 
-func (gm *GenericMap[K, V]) CompareAndSwap(key K, old V, new V) (swapped bool) {
+func (gm *Map[K, V]) CompareAndSwap(key K, old V, new V) (swapped bool) {
 	return gm.m.CompareAndSwap(key, old, new)
 }
 
-func (gm *GenericMap[K, V]) CompareAndDelete(key K, old V) (deleted bool) {
+func (gm *Map[K, V]) CompareAndDelete(key K, old V) (deleted bool) {
 	return gm.m.CompareAndDelete(key, old)
 }
 
-func New[K comparable, V any]() *GenericMap[K, V] {
-	return &GenericMap[K, V]{m: sync.Map{}}
+func New[K comparable, V any]() *Map[K, V] {
+	return &Map[K, V]{
+		m: new(sync.Map),
+	}
 }