Updated AST & provided c# parser implementation.

ICSharpCode.NRefactory/CSharp/Dom/AbtractDomVisitor.cs

@@ -477,5 +477,15 @@ namespace ICSharpCode.NRefactory.CSharp
 		{
 			return VisitChildren (argListExpression, data);
 		}
+		
+		public virtual S VisitComposedType (ComposedType composedType, T data)
+		{
+			return VisitChildren (composedType, data);
+		}
+		
+		public virtual S VisitDirectionExpression (DirectionExpression directionExpression, T data)
+		{
+			return VisitChildren (directionExpression, data);
+		}
 	}
 }

ICSharpCode.NRefactory/CSharp/Dom/ComposedType.cs

@@ -0,0 +1,72 @@
+// 
+// ComposedType.cs
+//  
+// Author:
+//       Mike Krüger <mkrueger@novell.com>
+// 
+// Copyright (c) 2010 Novell, Inc (http://www.novell.com)
+// 
+// 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.Collections.Generic;
+using System.Linq;
+
+namespace ICSharpCode.NRefactory.CSharp
+{
+	public class ComposedType : AbstractNode
+	{
+		public const int NullableRole  = 100;
+		public const int PointerRole   = 101;
+		public const int ArraySpecRole = 102;
+		
+		public INode BaseType {
+			get {
+				return GetChildByRole (Roles.ReturnType);
+			}
+		}
+		
+		public IEnumerable<ArraySpecifier> Compositions {
+			get { return GetChildrenByRole (ArraySpecRole).Cast<ArraySpecifier> () ?? new ArraySpecifier[0]; }
+		}
+		
+		public override S AcceptVisitor<T, S> (IDomVisitor<T, S> visitor, T data)
+		{
+			return visitor.VisitComposedType (this, data);
+		}
+		
+		public class ArraySpecifier : AbstractNode
+		{
+			
+			public CSharpTokenNode LBracket {
+				get { return (CSharpTokenNode)GetChildByRole (Roles.LBracket); }
+			}
+			
+			public CSharpTokenNode RBracket {
+				get { return (CSharpTokenNode)GetChildByRole (Roles.RBracket); }
+			}
+		
+			
+			public override S AcceptVisitor<T, S> (IDomVisitor<T, S> visitor, T data)
+			{
+				return default (S);
+			}
+		}
+	}
+}
+

ICSharpCode.NRefactory/CSharp/Dom/Expressions/DirectionExpression.cs

@@ -0,0 +1,59 @@
+// 
+// DirectionExpression.cs
+//  
+// Author:
+//       Mike Krüger <mkrueger@novell.com>
+// 
+// Copyright (c) 2010 Novell, Inc (http://www.novell.com)
+// 
+// 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;
+
+namespace ICSharpCode.NRefactory.CSharp
+{
+	public enum FieldDirection
+	{
+		None,
+		Out,
+		Ref
+	}
+	
+	public class DirectionExpression  : AbstractNode
+	{	
+		public FieldDirection FieldDirection {
+			get;
+			set;
+		}
+		
+		
+		public CSharpTokenNode Keyword {
+			get { return (CSharpTokenNode)GetChildByRole (Roles.Keyword); }
+		}
+		
+		public INode Expression {
+			get { return GetChildByRole (Roles.Expression); }
+		}
+		
+		public override S AcceptVisitor<T, S> (IDomVisitor<T, S> visitor, T data)
+		{
+			return visitor.VisitDirectionExpression (this, data);
+		}
+	}
+}

ICSharpCode.NRefactory/CSharp/Dom/IDomVisitor.cs

@@ -30,7 +30,7 @@ namespace ICSharpCode.NRefactory.CSharp
 {
 	public interface IDomVisitor<T, S>
 	{
-		S VisitCompilationUnit (CompilationUnit unit, T data);
+			S VisitCompilationUnit (CompilationUnit unit, T data);
 		
 		#region General scope
 		S VisitAttribute (Attribute attribute, T data);
@@ -46,6 +46,7 @@ namespace ICSharpCode.NRefactory.CSharp
 		S VisitIdentifier (Identifier identifier, T data);
 		S VisitParameterDeclarationExpression (ParameterDeclarationExpression parameterDeclarationExpression, T data);
 		S VisitConstraint (Constraint constraint, T data);
+		S VisitComposedType (ComposedType composedType, T data);
 		#endregion
 		
 		#region Type members
@@ -105,6 +106,7 @@ namespace ICSharpCode.NRefactory.CSharp
 		S VisitIdentifierExpression (IdentifierExpression identifierExpression, T data);
 		S VisitIndexerExpression (IndexerExpression indexerExpression, T data);
 		S VisitInvocationExpression (InvocationExpression invocationExpression, T data);
+		S VisitDirectionExpression (DirectionExpression directionExpression, T data);
 		S VisitMemberReferenceExpression (MemberReferenceExpression memberReferenceExpression, T data);
 		S VisitNullReferenceExpression (NullReferenceExpression nullReferenceExpression, T data);
 		S VisitObjectCreateExpression (ObjectCreateExpression objectCreateExpression, T data);

ICSharpCode.NRefactory/ICSharpCode.NRefactory.csproj

@@ -288,6 +288,8 @@
     <Compile Include="Utils\CacheManager.cs" />
     <Compile Include="Utils\CSharpPrimitiveCast.cs" />
     <Compile Include="Utils\TreeTraversal.cs" />
+    <Compile Include="CSharp\Dom\ComposedType.cs" />
+    <Compile Include="CSharp\Dom\Expressions\DirectionExpression.cs" />
   </ItemGroup>
   <ItemGroup>
     <Folder Include="CSharp\" />