diff --git a/ICSharpCode.NRefactory/CSharp/Ast/CompilationUnit.cs b/ICSharpCode.NRefactory/CSharp/Ast/CompilationUnit.cs
index 9a50477191..94e168140e 100644
--- a/ICSharpCode.NRefactory/CSharp/Ast/CompilationUnit.cs
+++ b/ICSharpCode.NRefactory/CSharp/Ast/CompilationUnit.cs
@@ -25,6 +25,9 @@
 // THE SOFTWARE.
 using System;
 using System.Collections.Generic;
+using System.Linq;
+
+using ICSharpCode.NRefactory.Utils;
 
 namespace ICSharpCode.NRefactory.CSharp
 {
@@ -101,6 +104,21 @@ namespace ICSharpCode.NRefactory.CSharp
 			}
 		}
 		
+		/// <summary>
+		/// Gets all nodes in that are satisfing a predicate.
+		/// </summary>
+		/// <param name="predicate">Predicate to filter the nodes.</param>
+		/// <returns></returns>
+		public IEnumerable<AstNode> GetNodesWithLineNumbers(Predicate<AstNode> predicate)
+		{
+			if (predicate == null)
+				throw new ArgumentNullException("predicate");
+			
+			return TreeTraversal
+				.PreOrder((AstNode)this, n => n.Children)
+				.Where(n => predicate(n) && n.Annotation<Tuple<int, int>>() != null);
+		}
+		
 		public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
 		{
 			return visitor.VisitCompilationUnit (this, data);