update exceptions

src/Exceptions.cs

@@ -0,0 +1,12 @@
+using System;
+
+namespace DCFApixels.DragonECS
+{
+    public static class EcsThrowHalper_ClassicThreads
+    {
+        internal static void DoubleParallelIteration(this EcsThrowHalper _)
+        {
+            throw new InvalidOperationException("It is forbidden to start a parallel iteration before the last one is finished.");
+        }
+    }
+}

src/Exceptions.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: dc7a8620fe24fe14f892ee3f82918c94
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

src/ThreadRunner.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Threading;
+using static DCFApixels.DragonECS.EcsThrowHalper;
 
 namespace DCFApixels.DragonECS
 {
@@ -61,8 +62,7 @@ namespace DCFApixels.DragonECS
         public static void Run(EcsThreadHandler worker, EcsReadonlyGroup entities, int minSpanSize)
         {
 #if (DEBUG && !DISABLE_DEBUG) || ENABLE_DRAGONECS_ASSERT_CHEKS
-            if (_isRunning)
+            if (_isRunning) Throw.DoubleParallelIteration();
-                throw new InvalidOperationException("It is forbidden to start a parallel iteration before the last one is finished.");
 #endif
             _isRunning = true;
             _worker = worker;
@@ -116,7 +116,7 @@ namespace DCFApixels.DragonECS
             {
                 var exceptions = _catchedExceptions;
                 _catchedExceptions = null;
-                throw new AggregateException("Mutiplie exceptions", exceptions);
+                throw new AggregateException(exceptions);
             }
         }