diff --git a/ICSharpCode.NRefactory/CSharp/Ast/AstNode.cs b/ICSharpCode.NRefactory/CSharp/Ast/AstNode.cs
index 2dab5a5ad9..dafcdc2533 100644
--- a/ICSharpCode.NRefactory/CSharp/Ast/AstNode.cs
+++ b/ICSharpCode.NRefactory/CSharp/Ast/AstNode.cs
@@ -157,6 +157,15 @@ namespace ICSharpCode.NRefactory.CSharp
 			}
 		}
 		
+		/// <summary>
+		/// Gets all descendants of this node (including this node itself).
+		/// </summary>
+		public IEnumerable<AstNode> DescendantsAndSelf {
+			get {
+				return Utils.TreeTraversal.PreOrder(this, n => n.Children);
+			}
+		}
+		
 		/// <summary>
 		/// Gets the first child with the specified role.
 		/// Returns the role's null object if the child is not found.
diff --git a/ICSharpCode.NRefactory/CSharp/Ast/AstType.cs b/ICSharpCode.NRefactory/CSharp/Ast/AstType.cs
index a35204e3cd..5582b9012e 100644
--- a/ICSharpCode.NRefactory/CSharp/Ast/AstType.cs
+++ b/ICSharpCode.NRefactory/CSharp/Ast/AstType.cs
@@ -53,6 +53,30 @@ namespace ICSharpCode.NRefactory.CSharp
 			return new TypeReferenceExpression { Type = this }.Member(memberName);
 		}
 		
+		/// <summary>
+		/// Builds an invocation expression using this type as target.
+		/// </summary>
+		public InvocationExpression Invoke(string methodName, IEnumerable<Expression> arguments)
+		{
+			return new TypeReferenceExpression { Type = this }.Invoke(methodName, arguments);
+		}
+		
+		/// <summary>
+		/// Builds an invocation expression using this type as target.
+		/// </summary>
+		public InvocationExpression Invoke(string methodName, params Expression[] arguments)
+		{
+			return new TypeReferenceExpression { Type = this }.Invoke(methodName, arguments);
+		}
+		
+		/// <summary>
+		/// Builds an invocation expression using this type as target.
+		/// </summary>
+		public InvocationExpression Invoke(string methodName, IEnumerable<AstType> typeArguments, IEnumerable<Expression> arguments)
+		{
+			return new TypeReferenceExpression { Type = this }.Invoke(methodName, typeArguments, arguments);
+		}
+		
 		public static AstType Create(Type type)
 		{
 			switch (Type.GetTypeCode(type)) {
diff --git a/ICSharpCode.NRefactory/CSharp/Ast/CSharpModifierToken.cs b/ICSharpCode.NRefactory/CSharp/Ast/CSharpModifierToken.cs
index ec0a85705c..3fc7fa2912 100644
--- a/ICSharpCode.NRefactory/CSharp/Ast/CSharpModifierToken.cs
+++ b/ICSharpCode.NRefactory/CSharp/Ast/CSharpModifierToken.cs
@@ -72,7 +72,10 @@ namespace ICSharpCode.NRefactory.CSharp
 			new KeyValuePair<Modifiers, int>(Modifiers.Volatile, "volatile".Length),
 			new KeyValuePair<Modifiers, int>(Modifiers.Extern, "extern".Length),
 			new KeyValuePair<Modifiers, int>(Modifiers.Partial, "partial".Length),
-			new KeyValuePair<Modifiers, int>(Modifiers.Const, "const".Length)
+			new KeyValuePair<Modifiers, int>(Modifiers.Const, "const".Length),
+			
+			// even though it's used for patterns only, it needs to be in this table to be usable in the AST
+			new KeyValuePair<Modifiers, int>(Modifiers.Any, "any".Length)
 		};
 		
 		public static IEnumerable<Modifiers> AllModifiers {
diff --git a/ICSharpCode.NRefactory/CSharp/Ast/Modifiers.cs b/ICSharpCode.NRefactory/CSharp/Ast/Modifiers.cs
index a05a817aaf..700a3c04d1 100644
--- a/ICSharpCode.NRefactory/CSharp/Ast/Modifiers.cs
+++ b/ICSharpCode.NRefactory/CSharp/Ast/Modifiers.cs
@@ -66,4 +66,9 @@ namespace ICSharpCode.NRefactory.CSharp
 		//Final                = 0x400000,
 		//Literal              = 0x800000,
 		VisibilityMask = Private | Internal | Protected | Public,
+		
+		/// <summary>
+		/// Special value used to match any modifiers during pattern matching.
+		/// </summary>
+		Any = unchecked((int)0x80000000)
 	}}
diff --git a/ICSharpCode.NRefactory/CSharp/Ast/PatternMatching/Pattern.cs b/ICSharpCode.NRefactory/CSharp/Ast/PatternMatching/Pattern.cs
index 23f5c2ea58..ed2122d19a 100644
--- a/ICSharpCode.NRefactory/CSharp/Ast/PatternMatching/Pattern.cs
+++ b/ICSharpCode.NRefactory/CSharp/Ast/PatternMatching/Pattern.cs
@@ -34,6 +34,11 @@ namespace ICSharpCode.NRefactory.CSharp.PatternMatching
 			return p != null ? new TypePlaceholder(p) : null;
 		}
 		
+		public AstType ToType()
+		{
+			return new TypePlaceholder(this);
+		}
+		
 		public static implicit operator Expression(Pattern p)
 		{
 			return p != null ? new ExpressionPlaceholder(p) : null;
@@ -64,6 +69,11 @@ namespace ICSharpCode.NRefactory.CSharp.PatternMatching
 			return p != null ? new VariablePlaceholder(p) : null;
 		}
 		
+		public static implicit operator AttributeSection(Pattern p)
+		{
+			return p != null ? new AttributeSectionPlaceholder(p) : null;
+		}
+		
 		// Make debugging easier by giving Patterns a ToString() implementation
 		public override string ToString()
 		{
diff --git a/ICSharpCode.NRefactory/CSharp/Ast/PatternMatching/Placeholder.cs b/ICSharpCode.NRefactory/CSharp/Ast/PatternMatching/Placeholder.cs
index f68feb443d..67987595f9 100644
--- a/ICSharpCode.NRefactory/CSharp/Ast/PatternMatching/Placeholder.cs
+++ b/ICSharpCode.NRefactory/CSharp/Ast/PatternMatching/Placeholder.cs
@@ -152,4 +152,33 @@ namespace ICSharpCode.NRefactory.CSharp.PatternMatching
 			return child.DoMatchCollection(role, pos, match, backtrackingStack);
 		}
 	}
+	
+	sealed class AttributeSectionPlaceholder : AttributeSection
+	{
+		readonly AstNode child;
+		
+		public AttributeSectionPlaceholder(AstNode child)
+		{
+			this.child = child;
+		}
+		
+		public override NodeType NodeType {
+			get { return NodeType.Placeholder; }
+		}
+		
+		public override S AcceptVisitor<T, S>(IAstVisitor<T, S> visitor, T data)
+		{
+			return ((IPatternAstVisitor<T, S>)visitor).VisitPlaceholder(this, child, data);
+		}
+		
+		protected internal override bool DoMatch(AstNode other, Match match)
+		{
+			return child.DoMatch(other, match);
+		}
+		
+		internal override bool DoMatchCollection(Role role, AstNode pos, Match match, Stack<Pattern.PossibleMatch> backtrackingStack)
+		{
+			return child.DoMatchCollection(role, pos, match, backtrackingStack);
+		}
+	}
 }
diff --git a/ICSharpCode.NRefactory/CSharp/Ast/TypeMembers/Accessor.cs b/ICSharpCode.NRefactory/CSharp/Ast/TypeMembers/Accessor.cs
index c487032ebc..cc5651d871 100644
--- a/ICSharpCode.NRefactory/CSharp/Ast/TypeMembers/Accessor.cs
+++ b/ICSharpCode.NRefactory/CSharp/Ast/TypeMembers/Accessor.cs
@@ -56,8 +56,12 @@ namespace ICSharpCode.NRefactory.CSharp
 			get { return GetChildByRole (Roles.Body); }
 			set { SetChildByRole (Roles.Body, value); }
 		}
-		
-		public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
+
+		public AstNodeCollection<ParameterDeclaration> Parameters {
+			get { return GetChildrenByRole(Roles.Parameter); }
+		}
+
+		public override S AcceptVisitor<T, S>(IAstVisitor<T, S> visitor, T data)
 		{
 			return visitor.VisitAccessor (this, data);
 		}
diff --git a/ICSharpCode.NRefactory/CSharp/Ast/TypeMembers/AttributedNode.cs b/ICSharpCode.NRefactory/CSharp/Ast/TypeMembers/AttributedNode.cs
index 41eec380d1..af5e584dc4 100644
--- a/ICSharpCode.NRefactory/CSharp/Ast/TypeMembers/AttributedNode.cs
+++ b/ICSharpCode.NRefactory/CSharp/Ast/TypeMembers/AttributedNode.cs
@@ -60,7 +60,7 @@ namespace ICSharpCode.NRefactory.CSharp
 		
 		protected bool MatchAttributesAndModifiers(AttributedNode o, PatternMatching.Match match)
 		{
-			return this.Modifiers == o.Modifiers && this.Attributes.DoMatch(o.Attributes, match);
+			return (this.Modifiers == Modifiers.Any || this.Modifiers == o.Modifiers) && this.Attributes.DoMatch(o.Attributes, match);
 		}
 	}
 }
diff --git a/ICSharpCode.NRefactory/CSharp/OutputVisitor/OutputVisitor.cs b/ICSharpCode.NRefactory/CSharp/OutputVisitor/OutputVisitor.cs
index da02c47d5f..bcab463d7a 100644
--- a/ICSharpCode.NRefactory/CSharp/OutputVisitor/OutputVisitor.cs
+++ b/ICSharpCode.NRefactory/CSharp/OutputVisitor/OutputVisitor.cs
@@ -202,8 +202,20 @@ namespace ICSharpCode.NRefactory.CSharp
 		{
 			WriteCommaSeparatedListInParenthesis(list.SafeCast<ParameterDeclaration, AstNode>(), spaceWithin);
 		}
+
 		#endif
-		
+
+		void WriteCommaSeparatedListInBrackets(IEnumerable<ParameterDeclaration> list, bool spaceWithin)
+		{
+			WriteToken("[", AstNode.Roles.LBracket);
+			if (list.Any()) {
+				Space(spaceWithin);
+				WriteCommaSeparatedList(list.SafeCast<ParameterDeclaration, AstNode>());
+				Space(spaceWithin);
+			}
+			WriteToken("]", AstNode.Roles.RBracket);
+		}
+
 		void WriteCommaSeparatedListInBrackets(IEnumerable<Expression> list)
 		{
 			WriteToken("[", AstNode.Roles.LBracket);
@@ -1815,7 +1827,7 @@ namespace ICSharpCode.NRefactory.CSharp
 			WritePrivateImplementationType(indexerDeclaration.PrivateImplementationType);
 			WriteKeyword("this");
 			Space(policy.BeforeMethodDeclarationParentheses);
-			WriteCommaSeparatedListInParenthesis(indexerDeclaration.Parameters, policy.WithinMethodDeclarationParentheses);
+			WriteCommaSeparatedListInBrackets(indexerDeclaration.Parameters, policy.WithinMethodDeclarationParentheses);
 			OpenBrace(policy.PropertyBraceStyle);
 			// output get/set in their original order
 			foreach (AstNode node in indexerDeclaration.Children) {