ExpressionTreeCloner now can create shallow field-based clones of objects without a default constructor (before this, only deep clones worked); search-and-replace fix - some comments referred to something called 'propertys'; all cloners now correctly handle being passed null values (a clone of 'null' is also 'null' per definition)

git-svn-id: file:///srv/devel/repo-conversion/nusu@246 d2e56fa2-650e-0410-a79f-9358c0239efd

Source/Cloning/ExpressionTreeCloner.FieldBased.cs

@@ -169,7 +169,20 @@ namespace Nuclex.Support.Cloning {
         );
 
         // Give it a new instance of the type being cloned
-        transferExpressions.Add(Expression.Assign(clone, Expression.New(clonedType)));
+        MethodInfo getUninitializedObjectMethodInfo = typeof(FormatterServices).GetMethod(
+          "GetUninitializedObject", BindingFlags.Static | BindingFlags.Public
+        );
+        transferExpressions.Add(
+          Expression.Assign(
+            clone,
+            Expression.Convert(
+              Expression.Call(
+                getUninitializedObjectMethodInfo, Expression.Constant(clonedType)
+              ),
+              clonedType
+            )
+          )
+        );
 
         // Enumerate all of the type's fields and generate transfer expressions for each
         FieldInfo[] fieldInfos = clonedType.GetFields(