--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crashanalysercmd/PerfToolsSharedLibraries/Engine/SymBuildParsingLib/Parser/Framework/Workers/SymParserWorker.cs	Thu Feb 11 15:50:58 2010 +0200
@@ -0,0 +1,117 @@
+/*
+* 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 System.Collections;
+using SymBuildParsingLib.Tree;
+using SymBuildParsingLib.Token;
+
+namespace SymBuildParsingLib.Parser.Framework.Workers
+{
+	public abstract class SymParserWorker
+	{
+		#region Enumerations
+		public enum TTokenConsumptionType
+		{
+			ETokenNotConsumed = 0,
+			ETokenConsumed
+		};
+		#endregion
+
+		#region Constructors & destructor
+		public SymParserWorker( SymParserWorkerContext aContext )
+			: this( aContext, 0 )
+		{
+		}
+
+		public SymParserWorker( SymParserWorkerContext aContext, int aPriority )
+		{
+			iWorkerContext = aContext;
+			iPriority = aPriority;
+		}
+		#endregion
+
+		#region API
+		public virtual SymParserWorker.TTokenConsumptionType OfferToken( SymToken aToken )
+		{
+			SymParserWorker.TTokenConsumptionType consumptionType = TTokenConsumptionType.ETokenNotConsumed;
+			//
+			int count = iChildren.Count;
+			for( int i=0; i<count; i++ )
+			{
+				SymParserWorker worker = this[ i ];
+				consumptionType = worker.OfferToken( aToken );
+				//
+				if	( consumptionType == SymParserWorker.TTokenConsumptionType.ETokenConsumed )
+				{
+					break;
+				}
+			}
+			//
+			return consumptionType;
+		}
+		#endregion
+
+		#region Worker related
+		public virtual void RemoveSelf()
+		{
+			if	( WorkerContext.Parent != null )
+			{
+				WorkerContext.Parent.RemoveChild( this );
+			}
+		}
+
+		public virtual void AddChild( SymParserWorker aWorker )
+		{
+			iChildren.Add( aWorker );
+		}
+
+		public virtual void RemoveChild( SymParserWorker aWorker )
+		{
+			iChildren.Remove( aWorker );
+		}
+		
+		public int ChildCount
+		{
+			get { return iChildren.Count; }
+		}
+
+		public SymParserWorker this[ int aIndex ]
+		{
+			get { return (SymParserWorker) iChildren[ aIndex ]; }
+		}
+		#endregion
+
+		#region Properties
+		public int Priority
+		{
+			get { return iPriority; }
+		}
+
+		public SymParserWorkerContext WorkerContext
+		{
+			get { return iWorkerContext; }
+		}
+		#endregion
+
+		#region Data members
+		private readonly SymParserWorkerContext iWorkerContext;
+		private int iPriority = 0;
+		private ArrayList iChildren = new ArrayList(2);
+		#endregion
+	}
+}