Support restoring a null initial synchronisation context

dotnet · May 2, 2024 · cfcab31 · cfcab31
1 parent 2a0c631
commit cfcab31
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/...soft.VisualStudio.ProjectSystem.Managed.UnitTests/Utilities/SynchronizationContextUtil.cs b/...soft.VisualStudio.ProjectSystem.Managed.UnitTests/Utilities/SynchronizationContextUtil.cs
@@ -33,13 +33,13 @@ public static IDisposable Suppress()
 
     private sealed class SuppressionReleaser(SynchronizationContext old) : IDisposable
     {
-        private SynchronizationContext? old = old;
+        private int _isDisposed;
 
         public void Dispose()
         {
-            if (Interlocked.Exchange(ref old, null) is { } restoreMe)
+            if (Interlocked.Exchange(ref _isDisposed, 1) is 0)
             {
-                SynchronizationContext.SetSynchronizationContext(restoreMe);
+                SynchronizationContext.SetSynchronizationContext(old);
             }
         }
     }