Fixes for virtual dispatch for multiple inheritance.

+ Fix Itanium vtable layout: derived type's virtual methods come after primary base's but before the rest of the base classes'
+ Wrapper cleanup: move common init code to methods, cache all casted base wrappers right away in preparation for patching base-in-derived vtptrs
+ CppInstancePtr: read native_vtptr when constructed with native ptr-- will need hash lookup to detect managed instances
+ Clean/refactor LazyGeneratedList

src/Mono.VisualC.Interop/ABI/CppAbi.cs

@@ -54,7 +54,7 @@ namespace Mono.VisualC.Interop.ABI {
 		protected static readonly MethodInfo cppip_managedalloc    = typeof (CppInstancePtr).GetProperty ("IsManagedAlloc").GetGetMethod ();
 		protected static readonly MethodInfo cppip_getmanaged      = typeof (CppInstancePtr).GetMethod ("GetManaged", BindingFlags.Static | BindingFlags.NonPublic);
 		protected static readonly ConstructorInfo cppip_fromnative = typeof (CppInstancePtr).GetConstructor (new Type [] { typeof (IntPtr) });
-		protected static readonly ConstructorInfo cppip_fromsize   = typeof (CppInstancePtr).GetConstructor (new Type [] { typeof (int) });
+		protected static readonly ConstructorInfo cppip_fromsize   = typeof (CppInstancePtr).GetConstructor (BindingFlags.Instance | BindingFlags.NonPublic, null, new Type [] { typeof (int) }, null);
 		protected static readonly ConstructorInfo cppip_fromsize_managed = typeof (CppInstancePtr).GetConstructor (BindingFlags.Instance | BindingFlags.NonPublic, null,
 		                                                                                                         new Type[] { typeof (int), typeof (object) }, null);
 		protected static readonly ConstructorInfo notimplementedexception = typeof (NotImplementedException).GetConstructor (new Type [] { typeof (string) });

src/Mono.VisualC.Interop/ABI/Impl/ItaniumTypeInfo.cs

@@ -38,25 +38,38 @@ namespace Mono.VisualC.Interop.ABI {
 		{
 		}
 
-
-		// When adding a non-primary base class's complete vtable, we need to reserve space for
-		//  the stuff before the address point of the vtptr..
-		//  Includes vbase & vcall offsets (virtual inheritance), offset to top, and RTTI info
-		public override void AddBase (CppTypeInfo baseType)
+		protected override void AddBase (CppTypeInfo baseType, bool addVTable)
 		{
-			if (TypeComplete)
-				return;
 
-			if (BaseClasses.Count > 0 && baseType.VirtualMethods.Any ()) { // already have a primary base
+			// When adding a non-primary base class's complete vtable, we need to reserve space for
+			// the stuff before the address point of the vtptr..
+			// Includes vbase & vcall offsets (virtual inheritance), offset to top, and RTTI info
+			if (addVTable) {
 
 				// FIXME: virtual inheritance
-				virtual_methods.Insert (BaseVTableSlots, null);
-				virtual_methods.Insert (BaseVTableSlots, null);
-				BaseVTableSlots += 2;
+				virtual_methods.Add (null);
+				virtual_methods.Add (null);
+
+				vt_overrides.Add (2);
+				vt_delegate_types.Add (2);
+			}
+
+			base.AddBase (baseType, addVTable);
+		}
+
+		protected override bool OnVTableDuplicate (ref int iter, PInvokeSignature sig, PInvokeSignature dup)
+		{
+			var isOverride = base.OnVTableDuplicate (ref iter, sig, dup);
+			if (isOverride && sig.Type == MethodType.NativeDtor) {
 
+				// also remove that pesky extra dtor
+				virtual_methods.RemoveAt (iter + 1);
+				vt_overrides.Remove (1);
+				vt_delegate_types.Remove (1);
+				return true;
 			}
 
-			base.AddBase (baseType);
+			return false;
 		}
 
 	}

src/Mono.VisualC.Interop/ABI/Impl/MsvcAbi.cs

@@ -49,7 +49,7 @@ namespace Mono.VisualC.Interop.ABI {
 
 		protected override CppTypeInfo MakeTypeInfo (IEnumerable<PInvokeSignature> methods)
 		{
-			return new MsvcTypeInfo (this, methods.Where (m => IsVirtual (m.OrigMethod)), layout_type, wrapper_type);
+			return new CppTypeInfo (this, methods.Where (m => IsVirtual (m.OrigMethod)), layout_type, wrapper_type);
 		}
 
 		public override CallingConvention? GetCallingConvention (MethodInfo methodInfo)

src/Mono.VisualC.Interop/ABI/Impl/MsvcTypeInfo.cs

@@ -1,56 +0,0 @@
-// Author:
-//   Alexander Corrado (alexander.corrado@gmail.com)
-//   Andreia Gaita (shana@spoiledcat.net)
-//
-// Copyright (C) 2010 Alexander Corrado
-//
-// Permission is hereby granted, free of charge, to any person obtaining
-// a copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to
-// permit persons to whom the Software is furnished to do so, subject to
-// the following conditions:
-// 
-// The above copyright notice and this permission notice shall be
-// included in all copies or substantial portions of the Software.
-// 
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-using System;
-using System.Linq;
-using System.Collections.Generic;
-using System.Runtime.InteropServices;
-using System.Reflection;
-
-using Mono.VisualC.Interop.Util;
-
-namespace Mono.VisualC.Interop.ABI {
-	public class MsvcTypeInfo : CppTypeInfo {
-		public MsvcTypeInfo (MsvcAbi abi, IEnumerable<PInvokeSignature> virtualMethods, Type nativeLayout, Type wrapperType)
-			: base (abi, virtualMethods, nativeLayout, wrapperType)
-		{
-		}
-
-		// AFIK, MSVC places only its first base's virtual methods in the derived class's
-		//  primary vtable. Subsequent base classes (each?) get another vtable pointer
-		public override void AddBase (CppTypeInfo baseType)
-		{
-			if (TypeComplete)
-				return;
-
-			if (BaseClasses.Count == 0)
-				base.AddBase (baseType, false);
-			else
-				base.AddBase (baseType, true);
-		}
-
-	}
-}
-

src/Mono.VisualC.Interop/CppInstancePtr.cs

@@ -70,6 +70,7 @@ namespace Mono.VisualC.Interop {
 		}
 
 		// Alloc a new C++ instance
+		// NOTE: native_vtptr will be set later after native ctor is called
 		internal CppInstancePtr (int nativeSize, object managedWrapper)
 		{
 			// Under the hood, we're secretly subclassing this C++ class to store a
@@ -89,7 +90,7 @@ namespace Mono.VisualC.Interop {
 		}
 
 		// Alloc a new C++ instance when there is no managed wrapper.
-		public CppInstancePtr (int nativeSize)
+		internal CppInstancePtr (int nativeSize)
 		{
 			ptr = Marshal.AllocHGlobal (nativeSize);
 			manage_memory = true;
@@ -101,6 +102,11 @@ namespace Mono.VisualC.Interop {
 			if (native == IntPtr.Zero)
 				throw new ArgumentOutOfRangeException ("native cannot be null pointer");
 
+			// Kludge! CppInstancePtr doesn't know whether this class is virtual or not, but we'll just assume that either
+			//  way it's at least sizeof(void*) and read what would be the vtptr anyway. Supposedly, if it's not virtual,
+			//  the wrappers won't use this field anyway...
+			native_vtptr = Marshal.ReadIntPtr (native);
+
 			ptr = native;
 			manage_memory = false;
 		}

src/Mono.VisualC.Interop/CppTypeInfo.cs

@@ -103,9 +103,9 @@ namespace Mono.VisualC.Interop {
 
 		public virtual void AddBase (CppTypeInfo baseType)
 		{
-
-			// by default, do not add another vtable for this new base class
-			AddBase (baseType, false);
+			// by default, if we already have base class(es), this base's virtual methods are not included before the derived class's
+			var addVTable = base_classes.Count >= 1;
+			AddBase (baseType, addVTable);
 		}
 
 		protected virtual void AddBase (CppTypeInfo baseType, bool addVTable)
@@ -114,34 +114,38 @@ namespace Mono.VisualC.Interop {
 				return;
 
 			base_classes.Add (baseType);
-
 			bool addVTablePointer = addVTable || base_classes.Count > 1;
+			int  baseVMethodCount = baseType.virtual_methods.Count;
+
+			if (addVTable) {
+				// If we are adding a new vtable, don't skew the offsets of the of this subclass's methods.
+				//  Instead append the new virtual methods to the end.
+
+				for (int i = 0; i < baseVMethodCount; i++)
+					virtual_methods.Add (baseType.virtual_methods [i]);
+
+				vt_delegate_types.Add (baseVMethodCount);
+				vt_overrides.Add (baseVMethodCount);
+
+			} else {
 
-			if (!addVTable) {
 				// If we're not adding a new vtable, then all this base class's virtual methods go in primary vtable
 				// Skew the offsets of this subclass's vmethods to account for the new base vmethods.
 
-				int baseVMethodCount = baseType.virtual_methods.Count;
 				for (int i = 0; i < baseVMethodCount; i++)
 					virtual_methods.Insert (BaseVTableSlots + i, baseType.virtual_methods [i]);
 	
 				BaseVTableSlots += baseVMethodCount;
-				vt_delegate_types.PrependLast (baseType.vt_delegate_types);
-				//vt_overrides.PrependLast (baseType.vt_overrides);
+				vt_delegate_types.Add (baseVMethodCount);
 				vt_overrides.Add (baseVMethodCount);
-
-			} else {
-				// FIXME: Implement this when we get around to msvc again ?
 			}
 
 			field_offset_padding_without_vtptr += baseType.native_size +
 				(addVTablePointer? baseType.FieldOffsetPadding : baseType.field_offset_padding_without_vtptr);
 		}
 
-		public virtual TBase Cast<TBase> (ICppObject instance)
-			where TBase : ICppObject
+		public virtual CppInstancePtr Cast (ICppObject instance, Type targetType)
 		{
-			var targetType = typeof (TBase);
 			var found = false;
 			int offset = 0;
 
@@ -162,11 +166,7 @@ namespace Mono.VisualC.Interop {
 			//  it is Disposed, even if wrappers created here still exist and are pointing to it. :/
 			// The casted wrapper created here may be Disposed safely though.
 			// FIXME: On NET_4_0 use IntPtr.Add
-			var cppip = new CppInstancePtr (new IntPtr (instance.Native.Native.ToInt64 () + offset));
-
-			// Ugh, this requires boxing of cppip AND some slow reflection.. please cache the result of this!
-			// FIXME: Perhaps Reflection.Emit all possible base casts and eliminate this beast?
-			return (TBase)Activator.CreateInstance (targetType, cppip);
+			return new CppInstancePtr (new IntPtr (instance.Native.Native.ToInt64 () + offset));
 		}
 
 		public int CountBases (Func<CppTypeInfo, bool> predicate)
@@ -189,14 +189,10 @@ namespace Mono.VisualC.Interop {
 
 			TypeComplete = true;
 
-			// Tthis predicate ensures that duplicates are only removed
-			// if declared in different classes (i.e. overridden methods).
-			// We usually want to allow the same exact virtual methods to appear
-			// multiple times, in the case of nonvirtual diamond inheritance, for example.
-			RemoveVTableDuplicates ((pi1, pi2) => !pi1.OrigMethod.Equals (pi2.OrigMethod));
+			RemoveVTableDuplicates ();
 		}
 
-		protected virtual void RemoveVTableDuplicates (Func<PInvokeSignature,PInvokeSignature,bool> pred)
+		protected virtual void RemoveVTableDuplicates ()
 		{
 			// check that any virtual methods overridden in a subclass are only included once
 			var vsignatures = new Dictionary<MethodSignature,PInvokeSignature> (MethodSignature.EqualityComparer);
@@ -208,14 +204,29 @@ namespace Mono.VisualC.Interop {
 
 				PInvokeSignature existing;
 				if (vsignatures.TryGetValue (sig, out existing)) {
-					if (pred (sig, existing))
-						virtual_methods.RemoveAt (i--);
+					OnVTableDuplicate (ref i, sig, existing);
 				} else {
 					vsignatures.Add (sig, sig);
 				}
 			}
 		}
 
+		protected virtual bool OnVTableDuplicate (ref int iter, PInvokeSignature sig, PInvokeSignature dup)
+		{
+			// This predicate ensures that duplicates are only removed
+			// if declared in different classes (i.e. overridden methods).
+			// We usually want to allow the same exact virtual methods to appear
+			// multiple times, in the case of nonvirtual diamond inheritance, for example.
+			if (!sig.OrigMethod.Equals (dup.OrigMethod)) {
+				virtual_methods.RemoveAt (iter--);
+				vt_overrides.Remove (1);
+				vt_delegate_types.Remove (1);
+				return true;
+			}
+
+			return false;
+		}
+
 		public virtual T GetAdjustedVirtualCall<T> (CppInstancePtr instance, int derivedVirtualMethodIndex)
 			where T : class /* Delegate */
 		{

src/Mono.VisualC.Interop/Makefile.am

@@ -48,7 +48,6 @@ FILES =  \
 	ABI/Impl/ItaniumAbi.cs \
 	ABI/Impl/ItaniumTypeInfo.cs \
 	ABI/Impl/MsvcAbi.cs \
-	ABI/Impl/MsvcTypeInfo.cs \
 	ABI/Impl/VirtualOnlyAbi.cs \
 	ABI/MethodType.cs \
 	ABI/VTable.cs \

src/Mono.VisualC.Interop/Mono.VisualC.Interop.csproj

@@ -76,7 +76,6 @@
     <Compile Include="Util\LazyGeneratedList.cs" />
     <Compile Include="Util\DelegateTypeCache.cs" />
     <Compile Include="Util\ReflectionHelper.cs" />
-    <Compile Include="ABI\Impl\MsvcTypeInfo.cs" />
     <Compile Include="Util\MethodSignature.cs" />
     <Compile Include="CppModifiers.cs" />
     <Compile Include="ABI\Impl\ItaniumTypeInfo.cs" />

src/Mono.VisualC.Interop/Util/LazyGeneratedList.cs

@@ -32,50 +32,19 @@ using System.Collections.Generic;
 
 namespace Mono.VisualC.Interop.Util {
 
-	public class LazyGeneratedList<TItem> : IList<TItem> where TItem : class {
-
-		private class Node<TItem> where TItem : class {
-
-			public LazyGeneratedList<TItem> List { get; set; }
-			public Node<TItem> Next { get; set; }
-			public Node (LazyGeneratedList<TItem> list, Node<TItem> next)
-			{
-				this.List = list;
-				this.Next = next;
-			}
-			public void AppendNext (Node<TItem> node)
-			{
-				if (Next == null)
-					Next = node;
-				else
-					Next.AppendNext (node);
-			}
-			public TItem this [int index] {
-				get {
-					if (index >= List.Count)
-						return Next [index - List.Count];
-					return List [index];
-				}
-			}
-		}
-
+	public class LazyGeneratedList<TItem> : IList<TItem>
+		where TItem : class
+	{
 		private TItem [] cache;
 		private Func<int, TItem> generator;
 
-		private Node<TItem> previous;
-		private Node<TItem> next;
-		private int lead, content, follow;
-
-		private HashSet<int> removed;
+		private int count;
 
 		public LazyGeneratedList (int count, Func<int, TItem> generator)
 		{
 			this.cache = new TItem [count];
 			this.generator = generator;
-			this.lead = 0;
-			this.content = count;
-			this.follow = 0;
-			this.removed = new HashSet<int> ();
+			this.count = count;
 		}
 
 		public IEnumerator<TItem> GetEnumerator ()
@@ -89,86 +58,37 @@ namespace Mono.VisualC.Interop.Util {
 		}
 
 		public int Count {
-			get { return lead + content + follow; }
+			get { return count; }
 		}
 
 		public bool IsReadOnly {
 			get { return true; }
 		}
 
-		public TItem this [int index] {
+		public TItem this [int i] {
 			get {
-				return ForIndex (index, i => previous [i], i => (cache [i] == null? (cache [i] = generator (i)) : cache [i]), i => next [i]);
+				// access to cache [i] will throw the IndexOutOfRange exception for us
+				return cache [i] == null? (cache [i] = generator (i)) : cache [i];
 			}
 			set {
 				throw new NotSupportedException ("This IList is read only");
 			}
 		}
 
-		private TItem ForIndex (int index, Func<int,TItem> leadAction, Func<int,TItem> contentAction, Func<int,TItem> followAction)
-		{
-			if (removed.Contains (index))
-				index++;
-
-			if (index < lead) {
-				if (previous != null && index >= 0)
-					return leadAction (index);
-				throw new IndexOutOfRangeException (index.ToString ());
-			}
-
-			int realIndex = index - lead;
-			if (realIndex >= content) {
-				int followIndex = realIndex - content;
-				if (next != null && followIndex < follow)
-					return followAction (followIndex);
-				throw new IndexOutOfRangeException (index.ToString ());
-			}
-
-			return contentAction (realIndex);
-		}
-
-		/* Visual aid for the behavior of the following methods:
-
-			|<Prepended Range><Generated Range><Appended Range>|
-			 ^               ^                 ^              ^
-			 PrependFirst    PrependLast       AppendFirst    AppendLast
-		*/
-
-		public void AppendFirst (LazyGeneratedList<TItem> list)
+		public void Add (int count)
 		{
-			follow += list.Count;
-			next = new Node<TItem> (list, next);
+			this.count += count;
+			// flush cache
+			cache = new TItem [this.count];
 		}
-
-		public void AppendLast (LazyGeneratedList<TItem> list)
+		public void Remove (int count)
 		{
-			var node = new Node<TItem> (list, null);
-			if (next == null)
-				next = node;
-			else
-				next.AppendNext (node);
-
-			follow += list.Count;
+			this.count -= count;
+			// flush cache
+			cache = new TItem [this.count];
 		}
 
-		public void PrependLast (LazyGeneratedList<TItem> list)
-		{
-			var node = new Node<TItem> (list, null);
-			if (previous == null)
-				previous = node;
-			else
-				previous.AppendNext (node);
-
-			lead += list.Count;
-		}
-
-		public void PrependFirst (LazyGeneratedList<TItem> list)
-		{
-			lead += list.Count;
-			previous = new Node<TItem> (list, previous);
-		}
-
-		// FIXME: Should probably implement these 3 at some point
+		// FIXME: Should probably implement these at some point
 		public bool Contains (TItem item)
 		{
 			throw new NotImplementedException ();
@@ -181,24 +101,13 @@ namespace Mono.VisualC.Interop.Util {
 		{
 			throw new NotImplementedException ();
 		}
-
-
 		public void Insert (int index, TItem item)
 		{
 			throw new NotImplementedException ();
 		}
 		public void RemoveAt (int index)
 		{
-			while (removed.Contains (index))
-				index++;
-
-			removed.Add (index);
-			content--;
-		}
-		public void Add (int count)
-		{
-			content += count;
-			Array.Resize (ref cache, content);
+			throw new NotImplementedException ();
 		}
 		public void Add (TItem item)
 		{

src/generator/Templates/CSharp/CSharpClass.cs

@@ -19,9 +19,9 @@ namespace Templates {
     public partial class CSharpClass : Base {
         
         
-        #line 231 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+        #line 234 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
         
-private void WriteMethodHeader (Method method, string initBases)
+private void WriteMethodHeader (Method method, string layoutClass)
 {
 	var returnType = GetCSharpType (method.ReturnType);
 
@@ -45,7 +45,7 @@ private void WriteMethodHeader (Method method, string initBases)
 	Write (")\n");
 
 	if (method.IsConstructor)
-		WriteLine (initBases);
+		WriteLine (layoutClass);
 	else
 		WriteLine ("{");
 
@@ -152,206 +152,200 @@ private bool IsByVal (CppType t)
 	var wrapper = Class.Name;
 	var iface   = "I" + Class.Name;
 	var layout  = "_" + Class.Name;
-
-	var initBases = "{";
-	if (hasBase) {
-		initBases = "\t: base (impl.TypeInfo) {";
-		foreach (var nonPrimaryBase in Class.BaseClasses.Skip (1)) {
-			initBases = string.Format ("{0}\n\t\t\tnew {1} (impl.TypeInfo);", initBases, nonPrimaryBase.Name);
-		}
-	}
+	var layoutClass = (hasBase? "\t: base (impl.TypeInfo)\n\t\t{" : "{") + "\n\t\t\tLayoutClass ();";
+	var initBases   = (Class.BaseClasses.Count > 1 ? "\tInitBases ();\n\t\t}" : "}");
 
             
             #line default
             #line hidden
             
-            #line 20 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 14 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("// -------------------------------------------------------------------------\n//  Managed wrapper for ");
             
             #line default
             #line hidden
             
-            #line 21 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 15 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( Class.Name ));
             
             #line default
             #line hidden
             
-            #line 21 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 15 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("\n//  Generated from ");
             
             #line default
             #line hidden
             
-            #line 22 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 16 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( Path.GetFileName (Generator.InputFileName) ));
             
             #line default
             #line hidden
             
-            #line 22 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 16 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(" on ");
             
             #line default
             #line hidden
             
-            #line 22 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 16 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( DateTime.Now ));
             
             #line default
             #line hidden
             
-            #line 22 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 16 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("\n//\n//  This file was auto generated. Do not edit.\n// -------------------------------------------------------------------------\n\nusing System;\nusing Mono.VisualC.Interop;\n\nnamespace ");
             
             #line default
             #line hidden
             
-            #line 30 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 24 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( Generator.Namespace ));
             
             #line default
             #line hidden
             
-            #line 30 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 24 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(" {\n\n\tpublic partial class ");
             
             #line default
             #line hidden
             
-            #line 32 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 26 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( wrapper ));
             
             #line default
             #line hidden
             
-            #line 32 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 26 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(" : ");
             
             #line default
             #line hidden
             
-            #line 32 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 26 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( GetBaseString () ));
             
             #line default
             #line hidden
             
-            #line 32 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 26 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(" {\n\n\t\tprivate static readonly ");
             
             #line default
             #line hidden
             
-            #line 34 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 28 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( iface ));
             
             #line default
             #line hidden
             
-            #line 34 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 28 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(" impl = Libs.");
             
             #line default
             #line hidden
             
-            #line 34 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 28 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( Generator.LibBaseName ));
             
             #line default
             #line hidden
             
-            #line 34 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 28 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(".GetClass<");
             
             #line default
             #line hidden
             
-            #line 34 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 28 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( iface + "," + layout + "," + wrapper ));
             
             #line default
             #line hidden
             
-            #line 34 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 28 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("> (\"");
             
             #line default
             #line hidden
             
-            #line 34 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 28 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( Class.Name ));
             
             #line default
             #line hidden
             
-            #line 34 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 28 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("\");\n");
             
             #line default
             #line hidden
             
-            #line 35 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 29 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
  if (!hasBase) { 
             
             #line default
             #line hidden
             
-            #line 36 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 30 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("\t\tpublic CppInstancePtr Native { get; protected set; }\n");
             
             #line default
             #line hidden
             
-            #line 37 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 31 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
  } 
             
             #line default
             #line hidden
             
-            #line 38 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 32 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("\n");
             
             #line default
             #line hidden
             
-            #line 39 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 33 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
  /* Interface */ 
             
             #line default
             #line hidden
             
-            #line 40 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 34 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("\t\tpublic interface ");
             
             #line default
             #line hidden
             
-            #line 40 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 34 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( iface ));
             
             #line default
             #line hidden
             
-            #line 40 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 34 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(" : ICppClassOverridable<");
             
             #line default
             #line hidden
             
-            #line 40 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 34 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( wrapper ));
             
             #line default
             #line hidden
             
-            #line 40 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 34 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("> {\n");
             
             #line default
             #line hidden
             
-            #line 41 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 35 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
  PushIndent ("\t\t\t");
 	foreach (var method in Class.Methods) {
 		Write (CurrentIndent);
@@ -393,91 +387,91 @@ private bool IsByVal (CppType t)
             #line default
             #line hidden
             
-            #line 78 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 72 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("\t\t}\n");
             
             #line default
             #line hidden
             
-            #line 79 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 73 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
  /* Native layout */ 
             
             #line default
             #line hidden
             
-            #line 80 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 74 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("\t\tprivate struct ");
             
             #line default
             #line hidden
             
-            #line 80 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 74 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( layout ));
             
             #line default
             #line hidden
             
-            #line 80 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 74 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(" {\n");
             
             #line default
             #line hidden
             
-            #line 81 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 75 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
  foreach (var field in Class.Fields) { 
             
             #line default
             #line hidden
             
-            #line 82 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 76 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("\t\t\tpublic ");
             
             #line default
             #line hidden
             
-            #line 82 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 76 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( GetCSharpType (field.Type) ));
             
             #line default
             #line hidden
             
-            #line 82 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 76 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(" ");
             
             #line default
             #line hidden
             
-            #line 82 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 76 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( field.Name ));
             
             #line default
             #line hidden
             
-            #line 82 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 76 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(";\n");
             
             #line default
             #line hidden
             
-            #line 83 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 77 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
  } 
             
             #line default
             #line hidden
             
-            #line 84 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 78 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("\t\t}\n\n");
             
             #line default
             #line hidden
             
-            #line 86 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 80 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
  /* Native fields */ 
             
             #line default
             #line hidden
             
-            #line 87 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 81 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
  PushIndent ("\t\t");
 	foreach (var field in Class.Fields.Where (f => f.Access != Access.@private)) {
 		WriteLine ("{0} {1} {2} {{", field.Access, GetCSharpType (field.Type), field.Name); 
@@ -485,132 +479,155 @@ private bool IsByVal (CppType t)
             #line default
             #line hidden
             
-            #line 90 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 84 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("\t\t\tget {\n\t\t\t\treturn impl.");
             
             #line default
             #line hidden
             
-            #line 91 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 85 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( field.Name ));
             
             #line default
             #line hidden
             
-            #line 91 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 85 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(" [Native];\n\t\t\t}\n\t\t\tset {\n\t\t\t\timpl.");
             
             #line default
             #line hidden
             
-            #line 94 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 88 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( field.Name ));
             
             #line default
             #line hidden
             
-            #line 94 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 88 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(" [Native] = value;\n\t\t\t}\n\t\t}\n");
             
             #line default
             #line hidden
             
-            #line 97 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
- }
-   ClearIndent(); 
+            #line 91 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+ } ClearIndent(); 
             
             #line default
             #line hidden
             
-            #line 99 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 92 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("\n");
             
             #line default
             #line hidden
             
-            #line 100 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
- /* Native constructor */ 
+            #line 93 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+ /* Subclass constructor */ 
             
             #line default
             #line hidden
             
-            #line 101 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 94 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("\t\tpublic ");
             
             #line default
             #line hidden
             
-            #line 101 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 94 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( wrapper ));
             
             #line default
             #line hidden
             
-            #line 101 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(" (CppInstancePtr native)\n\t\t");
+            #line 94 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(" (CppTypeInfo subClass)\n\t\t");
+            
+            #line default
+            #line hidden
+            
+            #line 95 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(this.ToStringHelper.ToStringWithCulture( layoutClass ));
             
             #line default
             #line hidden
             
-            #line 102 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 95 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write("\n\t\t\tsubClass.AddBase (impl.TypeInfo);\n\t\t");
+            
+            #line default
+            #line hidden
+            
+            #line 97 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( initBases ));
             
             #line default
             #line hidden
             
-            #line 102 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write("\n\t\t\tNative = native;\n\t\t}\n\n");
+            #line 97 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write("\n\n");
             
             #line default
             #line hidden
             
-            #line 106 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
- /* Subclass constructor */ 
+            #line 99 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+ /* Native constructor */ 
             
             #line default
             #line hidden
             
-            #line 107 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 100 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("\t\tpublic ");
             
             #line default
             #line hidden
             
-            #line 107 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 100 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( wrapper ));
             
             #line default
             #line hidden
             
-            #line 107 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(" (CppTypeInfo subClass)\n\t\t");
+            #line 100 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(" (CppInstancePtr native)\n\t\t");
             
             #line default
             #line hidden
             
-            #line 108 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 101 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(this.ToStringHelper.ToStringWithCulture( layoutClass ));
+            
+            #line default
+            #line hidden
+            
+            #line 101 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write("\n\t\t\tNative = native;\n\t\t");
+            
+            #line default
+            #line hidden
+            
+            #line 103 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( initBases ));
             
             #line default
             #line hidden
             
-            #line 108 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write("\n\t\t\tsubClass.AddBase (impl.TypeInfo);\n\t\t}\n\n");
+            #line 103 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write("\n\n");
             
             #line default
             #line hidden
             
-            #line 112 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 105 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
  /* Wrapper methods */ 
             
             #line default
             #line hidden
             
-            #line 113 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 106 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
  PushIndent ("\t\t");
 		foreach (var method in Class.Methods.Where (m => m.GenWrapperMethod)) {
 
-			WriteMethodHeader (method, initBases);
+			WriteMethodHeader (method, layoutClass);
 
 			if (method.IsConstructor)
 				Write ("Native = ");
@@ -626,27 +643,32 @@ private bool IsByVal (CppType t)
 			}
 
 			WriteParameters (method.Parameters, false, false);
+			Write (");\n");
 			PopIndent ();
-			Write (");\n{0}}}\n\n", CurrentIndent);
+
+			if (method.IsConstructor)
+				WriteLine (initBases);
+			else
+				WriteLine ("}");
 	}
 	ClearIndent (); 
             
             #line default
             #line hidden
             
-            #line 136 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 134 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("\n");
             
             #line default
             #line hidden
             
-            #line 137 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 135 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
  /* Wrapper properties */ 
             
             #line default
             #line hidden
             
-            #line 138 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 136 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
  PushIndent ("\t\t");
 		foreach (var prop in Class.Properties) {
 			var type = GetCSharpType (prop.Type);
@@ -694,173 +716,170 @@ private bool IsByVal (CppType t)
             #line default
             #line hidden
             
-            #line 181 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write("\n");
+            #line 179 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write("\n\t\tpublic ");
             
             #line default
             #line hidden
             
-            #line 182 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
- /* Make this wrapper castable to non-primary bases */
-foreach (var npBase in Class.BaseClasses.Skip (1)) {
-	var prop = npBase.Name;
-	var field = prop + "_lazy";
-
+            #line 180 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(this.ToStringHelper.ToStringWithCulture( hasBase? "override" : "virtual" ));
             
             #line default
             #line hidden
             
-            #line 187 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write("\t\t// Non-primary base class implementation for ");
+            #line 180 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(" void Dispose ()\n\t\t{\n");
             
             #line default
             #line hidden
             
-            #line 187 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(this.ToStringHelper.ToStringWithCulture( npBase.Name ));
+            #line 182 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+ if (Class.Methods.Any (m => m.IsDestructor && !m.IsArtificial)) { 
             
             #line default
             #line hidden
             
-            #line 187 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(":\n\t\tprivate ");
+            #line 183 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write("\t\t\timpl.Destruct (Native);\n");
             
             #line default
             #line hidden
             
-            #line 188 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(this.ToStringHelper.ToStringWithCulture( npBase.Name ));
+            #line 184 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+ } 
             
             #line default
             #line hidden
             
-            #line 188 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(" ");
+            #line 185 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write("\t\t\tNative.Dispose ();\n\t\t}\n\n\t\tprivate void LayoutClass ()\n\t\t{\n");
             
             #line default
             #line hidden
             
-            #line 188 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(this.ToStringHelper.ToStringWithCulture( field ));
+            #line 190 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+ foreach (var npBase in Class.BaseClasses.Skip (1)) { 
             
             #line default
             #line hidden
             
-            #line 188 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(";\n\t\tpublic ");
+            #line 191 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write("\t\t\tnew ");
             
             #line default
             #line hidden
             
-            #line 189 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 191 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( npBase.Name ));
             
             #line default
             #line hidden
             
-            #line 189 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(" ");
+            #line 191 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(" (impl.TypeInfo);\n");
             
             #line default
             #line hidden
             
-            #line 189 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(this.ToStringHelper.ToStringWithCulture( prop ));
+            #line 192 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+ } 
             
             #line default
             #line hidden
             
-            #line 189 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(" {\n\t\t\tget {\n\t\t\t\tif (");
+            #line 193 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write("\t\t\timpl.TypeInfo.CompleteType ();\n\t\t}\n\n");
             
             #line default
             #line hidden
             
-            #line 191 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(this.ToStringHelper.ToStringWithCulture( field ));
+            #line 196 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+ /* Make this wrapper castable to non-primary bases */
+foreach (var npBase in Class.BaseClasses.Skip (1)) { 
             
             #line default
             #line hidden
             
-            #line 191 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(" == null)\n\t\t\t\t\t");
+            #line 198 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write("\t\t// Non-primary base class implementation for ");
             
             #line default
             #line hidden
             
-            #line 192 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(this.ToStringHelper.ToStringWithCulture( field ));
+            #line 198 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(this.ToStringHelper.ToStringWithCulture( npBase.Name ));
             
             #line default
             #line hidden
             
-            #line 192 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(" = impl.TypeInfo.Cast<");
+            #line 198 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(":\n\t\tpublic ");
             
             #line default
             #line hidden
             
-            #line 192 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 199 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( npBase.Name ));
             
             #line default
             #line hidden
             
-            #line 192 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write("> (this);\n\t\t\t\treturn ");
+            #line 199 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(" ");
             
             #line default
             #line hidden
             
-            #line 193 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(this.ToStringHelper.ToStringWithCulture( field ));
+            #line 199 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(this.ToStringHelper.ToStringWithCulture( npBase.Name ));
             
             #line default
             #line hidden
             
-            #line 193 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(";\n\t\t\t}\n\t\t}\n\t\tpublic static implicit operator ");
+            #line 199 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(" { get; protected set; }\n\t\tpublic static implicit operator ");
             
             #line default
             #line hidden
             
-            #line 196 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 200 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( npBase.Name ));
             
             #line default
             #line hidden
             
-            #line 196 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 200 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write("(");
             
             #line default
             #line hidden
             
-            #line 196 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 200 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(this.ToStringHelper.ToStringWithCulture( wrapper ));
             
             #line default
             #line hidden
             
-            #line 196 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 200 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(" subClass)\n\t\t{\n\t\t\treturn subClass.");
             
             #line default
             #line hidden
             
-            #line 198 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(this.ToStringHelper.ToStringWithCulture( prop ));
+            #line 202 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(this.ToStringHelper.ToStringWithCulture( npBase.Name ));
             
             #line default
             #line hidden
             
-            #line 198 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 202 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
             this.Write(";\n\t\t}\n\n");
             
             #line default
             #line hidden
             
-            #line 201 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 205 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
  PushIndent ("\t\t");
 		foreach (var method in npBase.Methods) {
 			// With the exception of virtual methods that have been overridden, these methods must be called
@@ -871,56 +890,93 @@ foreach (var npBase in Class.BaseClasses.Skip (1)) {
 
 			WriteMethodHeader (method, initBases);
 
-			Write ("{0}.{1} (", prop, method.FormattedName);
+			Write ("{0}.{1} (", npBase.Name, method.FormattedName);
 
 			WriteParameters (method.Parameters, false, false);
 			PopIndent ();
 			Write (");\n{0}}}\n\n", CurrentIndent);
 		}
 		ClearIndent ();
-} 
+}
+if (Class.BaseClasses.Count > 1) { 
             
             #line default
             #line hidden
             
-            #line 219 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write("\n\t\tpublic ");
+            #line 224 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write("\t\tprivate void InitBases ()\n\t\t{\n");
             
             #line default
             #line hidden
             
-            #line 220 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(this.ToStringHelper.ToStringWithCulture( hasBase? "override" : "virtual" ));
+            #line 226 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+ 		foreach (var npBase in Class.BaseClasses.Skip (1)) { 
             
             #line default
             #line hidden
             
-            #line 220 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write(" void Dispose ()\n\t\t{\n");
+            #line 227 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write("\t\t\t");
             
             #line default
             #line hidden
             
-            #line 222 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
- if (Class.Methods.Any (m => m.IsDestructor && !m.IsArtificial)) { 
+            #line 227 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(this.ToStringHelper.ToStringWithCulture( npBase.Name ));
             
             #line default
             #line hidden
             
-            #line 223 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write("\t\t\timpl.Destruct (Native);\n");
+            #line 227 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(" = new ");
             
             #line default
             #line hidden
             
-            #line 224 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            #line 227 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(this.ToStringHelper.ToStringWithCulture( npBase.Name ));
+            
+            #line default
+            #line hidden
+            
+            #line 227 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(" (impl.TypeInfo.Cast (this, typeof (");
+            
+            #line default
+            #line hidden
+            
+            #line 227 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(this.ToStringHelper.ToStringWithCulture( npBase.Name ));
+            
+            #line default
+            #line hidden
+            
+            #line 227 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write(")));\n");
+            
+            #line default
+            #line hidden
+            
+            #line 228 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+ 		} 
+            
+            #line default
+            #line hidden
+            
+            #line 229 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write("\t\t}\n");
+            
+            #line default
+            #line hidden
+            
+            #line 230 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
  } 
             
             #line default
             #line hidden
             
-            #line 225 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
-            this.Write("\t\t\tNative.Dispose ();\n\t\t}\n\n\t}\n}\n\n");
+            #line 231 "/Users/alex/OpenSource/cppinterop/src/generator/Templates/CSharp/CSharpClass.tt"
+            this.Write("\t}\n}\n\n");
             
             #line default
             #line hidden

src/generator/Templates/CSharp/CSharpClass.tt

@@ -8,14 +8,8 @@
 	var wrapper = Class.Name;
 	var iface   = "I" + Class.Name;
 	var layout  = "_" + Class.Name;
-
-	var initBases = "{";
-	if (hasBase) {
-		initBases = "\t: base (impl.TypeInfo) {";
-		foreach (var nonPrimaryBase in Class.BaseClasses.Skip (1)) {
-			initBases = string.Format ("{0}\n\t\t\tnew {1} (impl.TypeInfo);", initBases, nonPrimaryBase.Name);
-		}
-	}
+	var layoutClass = (hasBase? "\t: base (impl.TypeInfo)\n\t\t{" : "{") + "\n\t\t\tLayoutClass ();";
+	var initBases   = (Class.BaseClasses.Count > 1 ? "\tInitBases ();\n\t\t}" : "}");
 #>
 // -------------------------------------------------------------------------
 //  Managed wrapper for <#= Class.Name #>
@@ -94,26 +88,25 @@ namespace <#= Generator.Namespace #> {
 				impl.<#= field.Name #> [Native] = value;
 			}
 		}
-<# }
-   ClearIndent(); #>
+<# } ClearIndent(); #>
+
+<# /* Subclass constructor */ #>
+		public <#= wrapper #> (CppTypeInfo subClass)
+		<#= layoutClass #>
+			subClass.AddBase (impl.TypeInfo);
+		<#= initBases #>
 
 <# /* Native constructor */ #>
 		public <#= wrapper #> (CppInstancePtr native)
-		<#= initBases #>
+		<#= layoutClass #>
 			Native = native;
-		}
-
-<# /* Subclass constructor */ #>
-		public <#= wrapper #> (CppTypeInfo subClass)
 		<#= initBases #>
-			subClass.AddBase (impl.TypeInfo);
-		}
 
 <# /* Wrapper methods */ #>
 <# PushIndent ("\t\t");
 		foreach (var method in Class.Methods.Where (m => m.GenWrapperMethod)) {
 
-			WriteMethodHeader (method, initBases);
+			WriteMethodHeader (method, layoutClass);
 
 			if (method.IsConstructor)
 				Write ("Native = ");
@@ -129,8 +122,13 @@ namespace <#= Generator.Namespace #> {
 			}
 
 			WriteParameters (method.Parameters, false, false);
+			Write (");\n");
 			PopIndent ();
-			Write (");\n{0}}}\n\n", CurrentIndent);
+
+			if (method.IsConstructor)
+				WriteLine (initBases);
+			else
+				WriteLine ("}");
 	}
 	ClearIndent (); #>
 
@@ -179,23 +177,29 @@ namespace <#= Generator.Namespace #> {
 		}
 		ClearIndent (); #>
 
+		public <#= hasBase? "override" : "virtual" #> void Dispose ()
+		{
+<# if (Class.Methods.Any (m => m.IsDestructor && !m.IsArtificial)) { #>
+			impl.Destruct (Native);
+<# } #>
+			Native.Dispose ();
+		}
+
+		private void LayoutClass ()
+		{
+<# foreach (var npBase in Class.BaseClasses.Skip (1)) { #>
+			new <#= npBase.Name #> (impl.TypeInfo);
+<# } #>
+			impl.TypeInfo.CompleteType ();
+		}
+
 <# /* Make this wrapper castable to non-primary bases */
-foreach (var npBase in Class.BaseClasses.Skip (1)) {
-	var prop = npBase.Name;
-	var field = prop + "_lazy";
-#>
+foreach (var npBase in Class.BaseClasses.Skip (1)) { #>
 		// Non-primary base class implementation for <#= npBase.Name #>:
-		private <#= npBase.Name #> <#= field #>;
-		public <#= npBase.Name #> <#= prop #> {
-			get {
-				if (<#= field #> == null)
-					<#= field #> = impl.TypeInfo.Cast<<#= npBase.Name #>> (this);
-				return <#= field #>;
-			}
-		}
+		public <#= npBase.Name #> <#= npBase.Name #> { get; protected set; }
 		public static implicit operator <#= npBase.Name #>(<#= wrapper #> subClass)
 		{
-			return subClass.<#= prop #>;
+			return subClass.<#= npBase.Name #>;
 		}
 
 <# PushIndent ("\t\t");
@@ -208,28 +212,27 @@ foreach (var npBase in Class.BaseClasses.Skip (1)) {
 
 			WriteMethodHeader (method, initBases);
 
-			Write ("{0}.{1} (", prop, method.FormattedName);
+			Write ("{0}.{1} (", npBase.Name, method.FormattedName);
 
 			WriteParameters (method.Parameters, false, false);
 			PopIndent ();
 			Write (");\n{0}}}\n\n", CurrentIndent);
 		}
 		ClearIndent ();
-} #>
-
-		public <#= hasBase? "override" : "virtual" #> void Dispose ()
+}
+if (Class.BaseClasses.Count > 1) { #>
+		private void InitBases ()
 		{
-<# if (Class.Methods.Any (m => m.IsDestructor && !m.IsArtificial)) { #>
-			impl.Destruct (Native);
-<# } #>
-			Native.Dispose ();
+<# 		foreach (var npBase in Class.BaseClasses.Skip (1)) { #>
+			<#= npBase.Name #> = new <#= npBase.Name #> (impl.TypeInfo.Cast (this, typeof (<#= npBase.Name #>)));
+<# 		} #>
 		}
-
+<# } #>
 	}
 }
 
 <#+
-private void WriteMethodHeader (Method method, string initBases)
+private void WriteMethodHeader (Method method, string layoutClass)
 {
 	var returnType = GetCSharpType (method.ReturnType);
 
@@ -253,7 +256,7 @@ private void WriteMethodHeader (Method method, string initBases)
 	Write (")\n");
 
 	if (method.IsConstructor)
-		WriteLine (initBases);
+		WriteLine (layoutClass);
 	else
 		WriteLine ("{");