Guard against potential null (#1695)

microsoft · Aug 2, 2024 · b1ecedd · b1ecedd
1 parent 15af469
commit b1ecedd
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/WinRT.Runtime/ComWrappersSupport.cs b/src/WinRT.Runtime/ComWrappersSupport.cs
@@ -650,7 +650,8 @@ internal static Type GetRuntimeClassForTypeCreation(IInspectable inspectable, Ty
             // isn't already added.  On JIT, we can construct it at runtime.
             if (!RuntimeFeature.IsDynamicCodeCompiled)
             {
-                if (implementationType.IsInterface && 
+                if (implementationType != null &&
+                    implementationType.IsInterface && 
                     implementationType.IsGenericType &&
                     !TypedObjectFactoryCacheForType.ContainsKey(implementationType))
                 {