完善一些高危风险的代码容错机制。

Assets/YooAsset/Runtime/OperationSystem/AsyncOperationBase.cs

@@ -188,13 +188,21 @@ namespace YooAsset
                 // 结束记录
                 DebugEndRecording();
 
-                //注意：如果完成回调内发生异常，会导致Task无限期等待
+                try
+                {
                     _callback?.Invoke(this);
-
+                }
+                catch (Exception ex)
+                {
+                    YooLogger.Error($"Exception in completion callback: {ex}");
+                }
+                finally
+                {
                     if (_taskCompletionSource != null)
                         _taskCompletionSource.TrySetResult(null);
                 }
             }
+        }
 
         /// <summary>
         /// 终止异步任务

Assets/YooAsset/Runtime/ResourceManager/Provider/ProviderOperation.cs

@@ -269,6 +269,7 @@ namespace YooAsset
 
             if (_resManager.UseWeakReferenceHandle)
             {
+                // TODO 高危风险：如果移除弱引用失败，会导致资源永远无法释放。
                 if (RemoveWeakReference(handle) == false)
                     throw new System.Exception("Should never get here !");
             }
@@ -335,11 +336,18 @@ namespace YooAsset
                 List<WeakReference<HandleBase>> tempers = _weakReferences.ToList();
                 foreach (var weakRef in tempers)
                 {
-                    if (weakRef.TryGetTarget(out HandleBase target))
+                    if (weakRef.TryGetTarget(out HandleBase handle))
                     {
-                        if (target.IsValid)
+                        if (handle.IsValid)
                         {
-                            target.InvokeCallback();
+                            try
+                            {
+                                handle.InvokeCallback();
+                            }
+                            catch (Exception ex)
+                            {
+                                YooLogger.Error($"Exception in completion callback: {ex}");
+                            }
                         }
                     }
                 }
@@ -350,9 +358,16 @@ namespace YooAsset
                 foreach (var handle in tempers)
                 {
                     if (handle.IsValid)
+                    {
+                        try
                         {
                             handle.InvokeCallback();
                         }
+                        catch (Exception ex)
+                        {
+                            YooLogger.Error($"Exception in completion callback: {ex}");
+                        }
+                    }
                 }
             }
         }