Added YieldBreakStatement.

ICSharpCode.NRefactory/CSharp/Ast/DepthFirstAstVisitor.cs

@@ -330,6 +330,11 @@ namespace ICSharpCode.NRefactory.CSharp
 			return VisitChildren (whileStatement, data);
 		}
 		
+		public virtual S VisitYieldBreakStatement (YieldBreakStatement yieldBreakStatement, T data)
+		{
+			return VisitChildren (yieldBreakStatement, data);
+		}
+		
 		public virtual S VisitYieldStatement (YieldStatement yieldStatement, T data)
 		{
 			return VisitChildren (yieldStatement, data);

ICSharpCode.NRefactory/CSharp/Ast/IAstVisitor.cs

@@ -87,6 +87,7 @@ namespace ICSharpCode.NRefactory.CSharp
 		S VisitUsingStatement(UsingStatement usingStatement, T data);
 		S VisitVariableDeclarationStatement(VariableDeclarationStatement variableDeclarationStatement, T data);
 		S VisitWhileStatement(WhileStatement whileStatement, T data);
+		S VisitYieldBreakStatement(YieldBreakStatement yieldBreakStatement, T data);
 		S VisitYieldStatement(YieldStatement yieldStatement, T data);
 		
 		S VisitAccessor(Accessor accessor, T data);

ICSharpCode.NRefactory/CSharp/Ast/Statements/YieldBreakStatement.cs

@@ -0,0 +1,54 @@
+// 
+// YieldBreakStatement.cs
+//
+// Author:
+//       Mike Krüger <mkrueger@novell.com>
+// 
+// Copyright (c) 2011 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.
+
+namespace ICSharpCode.NRefactory.CSharp
+{
+	/// <summary>
+	/// yield break;
+	/// </summary>
+	public class YieldBreakStatement : Statement
+	{
+		public static readonly Role<CSharpTokenNode> YieldKeywordRole = new Role<CSharpTokenNode>("YieldKeyword", CSharpTokenNode.Null);
+		public static readonly Role<CSharpTokenNode> BreakKeywordRole = new Role<CSharpTokenNode>("BreakKeyword", CSharpTokenNode.Null);
+		
+		public CSharpTokenNode YieldToken {
+			get { return GetChildByRole (YieldKeywordRole); }
+		}
+		
+		public CSharpTokenNode BreakToken {
+			get { return GetChildByRole (BreakKeywordRole); }
+		}
+		
+		public CSharpTokenNode SemicolonToken {
+			get { return GetChildByRole (Roles.Semicolon); }
+		}
+		
+		public override S AcceptVisitor<T, S> (AstVisitor<T, S> visitor, T data)
+		{
+			return visitor.VisitYieldBreakStatement (this, data);
+		}
+	}
+}

ICSharpCode.NRefactory/CSharp/Ast/Statements/YieldStatement.cs

@@ -26,11 +26,13 @@
 
 namespace ICSharpCode.NRefactory.CSharp
 {
+	/// <summary>
+	/// yield return Expression;
+	/// </summary>
 	public class YieldStatement : Statement
 	{
 		public static readonly Role<CSharpTokenNode> YieldKeywordRole = new Role<CSharpTokenNode>("YieldKeyword", CSharpTokenNode.Null);
 		public static readonly Role<CSharpTokenNode> ReturnKeywordRole = new Role<CSharpTokenNode>("ReturnKeyword", CSharpTokenNode.Null);
-		public static readonly Role<CSharpTokenNode> BreakKeywordRole = new Role<CSharpTokenNode>("BreakKeyword", CSharpTokenNode.Null);
 		
 		public CSharpTokenNode YieldToken {
 			get { return GetChildByRole (YieldKeywordRole); }
@@ -40,10 +42,6 @@ namespace ICSharpCode.NRefactory.CSharp
 			get { return GetChildByRole (ReturnKeywordRole); }
 		}
 		
-		public CSharpTokenNode BreakToken {
-			get { return GetChildByRole (BreakKeywordRole); }
-		}
-		
 		public Expression Expression {
 			get { return GetChildByRole (Roles.Expression); }
 			set { SetChildByRole (Roles.Expression, value); }
@@ -58,4 +56,7 @@ namespace ICSharpCode.NRefactory.CSharp
 			return visitor.VisitYieldStatement (this, data);
 		}
 	}
+	
+
+	
 }

ICSharpCode.NRefactory/CSharp/OutputVisitor/OutputVisitor.cs

@@ -1539,17 +1539,22 @@ namespace ICSharpCode.NRefactory.CSharp
 			return EndNode(whileStatement);
 		}
 		
+		public object VisitYieldBreakStatement(YieldBreakStatement yieldBreakStatement, object data)
+		{
+			StartNode(yieldBreakStatement);
+			WriteKeyword("yield", YieldBreakStatement.YieldKeywordRole);
+			WriteKeyword("break", YieldBreakStatement.BreakKeywordRole);
+			Semicolon();
+			return EndNode(yieldBreakStatement);
+		}
+		
 		public object VisitYieldStatement(YieldStatement yieldStatement, object data)
 		{
 			StartNode(yieldStatement);
 			WriteKeyword("yield", YieldStatement.YieldKeywordRole);
-			if (yieldStatement.Expression.IsNull) {
-				WriteKeyword("break", YieldStatement.BreakKeywordRole);
-			} else {
-				WriteKeyword("return", YieldStatement.ReturnKeywordRole);
-				Space();
-				yieldStatement.Expression.AcceptVisitor(this, data);
-			}
+			WriteKeyword("return", YieldStatement.ReturnKeywordRole);
+			Space();
+			yieldStatement.Expression.AcceptVisitor(this, data);
 			Semicolon();
 			return EndNode(yieldStatement);
 		}

ICSharpCode.NRefactory/CSharp/Parser/CSharpParser.cs

@@ -1376,12 +1376,12 @@ namespace ICSharpCode.NRefactory.CSharp
 			
 			public override object Visit (YieldBreak yieldBreakStatement)
 			{
-				var result = new YieldStatement ();
+				var result = new YieldBreakStatement ();
 				var location = LocationsBag.GetLocations (yieldBreakStatement);
-				result.AddChild (new CSharpTokenNode (Convert (yieldBreakStatement.loc), "yield".Length), YieldStatement.YieldKeywordRole);
+				result.AddChild (new CSharpTokenNode (Convert (yieldBreakStatement.loc), "yield".Length), YieldBreakStatement.YieldKeywordRole);
 				if (location != null) {
-					result.AddChild (new CSharpTokenNode (Convert (location[0]), "break".Length), YieldStatement.BreakKeywordRole);
-					result.AddChild (new CSharpTokenNode (Convert (location[1]), ";".Length), YieldStatement.Roles.Semicolon);
+					result.AddChild (new CSharpTokenNode (Convert (location[0]), "break".Length), YieldBreakStatement.BreakKeywordRole);
+					result.AddChild (new CSharpTokenNode (Convert (location[1]), ";".Length), YieldBreakStatement.Roles.Semicolon);
 				}
 				return result;
 			}

ICSharpCode.NRefactory/ICSharpCode.NRefactory.csproj

@@ -330,6 +330,7 @@
     <Compile Include="CSharp\Ast\GeneralScope\Comment.cs" />
     <Compile Include="CSharp\Parser\mcs\reflection.cs" />
     <Compile Include="CSharp\Ast\Statements\DoWhileStatement.cs" />
+    <Compile Include="CSharp\Ast\Statements\YieldBreakStatement.cs" />
   </ItemGroup>
   <ItemGroup>
     <Folder Include="CSharp\" />