调整：Dictionary.Update 当元素不存在时，不更新

farseer-go · Oct 22, 2024 · 31d4284 · 31d4284
1 parent ef839b7
commit 31d4284
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/dictionary.go b/dictionary.go
@@ -40,10 +40,11 @@ func (receiver *Dictionary[TKey, TValue]) Add(key TKey, value TValue) {
 
 // Update 更新元素
 func (receiver *Dictionary[TKey, TValue]) Update(key TKey, f func(value *TValue)) {
-	v, _ := receiver.source.Load(key)
-	v2 := v.(TValue)
-	f(&v2)
-	receiver.source.Store(key, v2)
+	if v, exists := receiver.source.Load(key); exists {
+		v2 := v.(TValue)
+		f(&v2)
+		receiver.source.Store(key, v2)
+	}
 }
 
 // Clear 清除元素