--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crashanalysercmd/PerfToolsSharedLibraries/Engine/SymBuildParsingLib/Parser/PreProcessor/Workers/SymPreProcessorWorkerEndif.cs	Thu Feb 11 15:50:58 2010 +0200
@@ -0,0 +1,62 @@
+/*
+* Copyright (c) 2004-2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+using System;
+using SymBuildParsingLib.Tree;
+using SymBuildParsingLib.Parser.Framework;
+using SymBuildParsingLib.Parser.Framework.Nodes;
+using SymBuildParsingLib.Parser.Framework.Workers;
+using SymBuildParsingLib.Parser.PreProcessor.Parser;
+
+namespace SymBuildParsingLib.Parser.PreProcessor.Workers
+{
+	public class SymPreProcessorWorkerEndif : SymParserWorker
+	{
+		#region Constructors & destructor
+		public SymPreProcessorWorkerEndif( SymParserWorkerContext aContext )
+			: base( aContext )
+		{
+			// When the endif token is reached, we must work back up the tree
+			// looking for the previous (i.e. most recent) conditional expression
+			// node.
+			SymNodeConditionalExpression condExpNode = SymParserWorkerConditionalExpression.FindMostRecentConditionalExpression( aContext.Document.CurrentNode );
+			if	( condExpNode == null )
+			{
+				throw new Exception( "Unable to locate most recent condition expression during ENDIF handling" );
+			}
+
+			// There must always be a positive condition node and some kind of condition
+			if	( condExpNode.ChildTypeExists( typeof(SymNodeCondition) ) == false )
+			{
+				throw new Exception( "No child condition node found during ENDIF handling" );
+			}
+
+			// We change the current node to be the parent of the conditional expression. 
+			// Any new tokens will appear as siblings
+			aContext.Document.CurrentNode = condExpNode.Parent;
+
+			// Make sure we tell the parser that it can pop off this conditional expression node.
+			SymPreProcessorParser parser = (SymPreProcessorParser) aContext.Parser;
+			SymNodeConditionalExpression poppedExpression = parser.ConditionalExpressionPop();
+			System.Diagnostics.Debug.Assert( poppedExpression == condExpNode );
+
+			// Job done - dequeue
+			RemoveSelf();
+		}
+		#endregion
+	}
+}