Fix child resolve for types with generic interfaces

src/TinyIoC/TinyIoC.cs

@@ -3716,23 +3716,26 @@ private ObjectFactoryBase GetParentObjectFactory(TypeRegistration registration)
 
             ObjectFactoryBase factory;
 
+            if (_Parent._RegisteredTypes.TryGetValue(registration, out factory))
+            {
+                return factory.GetFactoryForChildContainer(registration.Type, _Parent, this);
+            }
+
+#if RESOLVE_OPEN_GENERICS
+            // Attempt container resolution of open generic
             if (registration.Type.IsGenericType())
             {
-                var openTypeRegistration = new TypeRegistration(registration.Type,
+                var openTypeRegistration = new TypeRegistration(registration.Type.GetGenericTypeDefinition(),
                                                                 registration.Name);
 
                 if (_Parent._RegisteredTypes.TryGetValue(openTypeRegistration, out factory))
                 {
-                    return factory.GetFactoryForChildContainer(openTypeRegistration.Type, _Parent, this);
+                    return factory.GetFactoryForChildContainer(registration.Type, _Parent, this);
                 }
 
                 return _Parent.GetParentObjectFactory(registration);
             }
-
-            if (_Parent._RegisteredTypes.TryGetValue(registration, out factory))
-            {
-                return factory.GetFactoryForChildContainer(registration.Type, _Parent, this);
-            }
+#endif
 
             return _Parent.GetParentObjectFactory(registration);
         }

tests/TinyIoC.Tests/TinyIoCTests.cs

@@ -13,6 +13,12 @@
 // FITNESS FOR A PARTICULAR PURPOSE.
 //===============================================================================
 
+#region Preprocessor Directives
+
+#define RESOLVE_OPEN_GENERICS               // Platform supports resolving open generics
+
+#endregion
+
 using System;
 using System.Collections.Generic;
 using System.Linq;