--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crashanalysercmd/PerfToolsSharedLibraries/Engine/SymBuildParsingLib/Parser/Framework/Nodes/SymNodeCondition.cs	Thu Feb 11 15:50:58 2010 +0200
@@ -0,0 +1,150 @@
+/*
+* 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.Token;
+using SymBuildParsingLib.Utils;
+using SymBuildParsingLib.Parser.Framework.Document;
+using SymBuildParsingLib.Parser.Framework.Workers;
+using SymbianTree;
+
+namespace SymBuildParsingLib.Parser.Framework.Nodes
+{
+	public class SymNodeCondition : SymNodeAddAsChild
+	{
+		#region Enumerations
+		public enum TType
+		{
+			ETypeUnknown = -1,
+			ETypeIf = 0,
+			ETypeIfdef,
+			ETypeIfndef,
+			ETypeElseIf,
+			ETypeElse
+		}
+		#endregion
+
+		#region Constructors & destructor
+		public SymNodeCondition( TType aType )
+		{
+			iType = aType;
+		}
+
+		public SymNodeCondition( string aName )
+			: this( SymNodeCondition.TypeByName( aName ) )
+		{
+			if	( Type == TType.ETypeUnknown )
+			{
+				throw new ArgumentException( "Invalid condition name: " + aName );
+			}
+		}
+		#endregion
+
+		#region API
+		public void MakeConditionalArgumentCurrent( SymParserDocument aDocument )
+		{
+			SymNodeConditionalExpression condExpNode = SymParserWorkerConditionalExpression.FindMostRecentConditionalExpression( this );
+			if	( condExpNode == null )
+			{
+				throw new Exception( "Unable to locate conditional expression. Document is corrupt" );
+			}
+
+			aDocument.CurrentNode = condExpNode;
+		}
+
+		static public TType TypeByName( string aName )
+		{
+			TType ret = TType.ETypeUnknown;
+			//
+			switch( aName )
+			{
+				case "if":
+					ret = TType.ETypeIf;
+					break;
+				case "ifdef":
+					ret = TType.ETypeIfdef;
+					break;
+				case "ifndef":
+					ret = TType.ETypeIfndef;
+					break;
+				case "elif":
+				case "else if":
+					ret = TType.ETypeElseIf;
+					break;
+				case "else":
+					ret = TType.ETypeElse;
+					break;
+				default:
+					break;
+			}
+			//
+			return ret;
+		}
+
+		public void AssignArgumentTokens( SymTokenBalancerDocument aDocument )
+		{
+			Data = aDocument;
+		}
+
+		public virtual void Evaluate( SymParserDocumentContext aContext )
+		{
+			IsEvaluated = false;
+
+			// Evaluate the expression, taking into account the current #define'd 
+			// values. Prepares a new document with these expressions evaluated.
+			SymTokenDocument evalDoc = BalancedArguments.ExtractTokensAsDocument( false, true );
+			string expression = evalDoc.ChildrenAsString( false, true );
+
+			// Get evaluated result from evaluator
+			iEvaluationResult = SymExpressionEvaluator.EvaluateAsBoolean( expression );
+
+			IsEvaluated = true;
+		}
+		#endregion
+
+		#region Properties
+		public TType Type
+		{
+			get { return iType; }
+		}
+
+		public bool EvaluationResult
+		{
+			get { return iEvaluationResult; }
+			set { iEvaluationResult = value; }
+		}
+
+		public bool IsEvaluated
+		{
+			get { return iIsEvaluated; }
+			set { iIsEvaluated = value; }
+		}
+
+		public SymTokenBalancerDocument BalancedArguments
+		{
+			get { return (SymTokenBalancerDocument) Data; }
+		}
+		#endregion
+
+		#region Data members
+		private bool iIsEvaluated = false;
+		private bool iEvaluationResult = true;
+		private readonly TType iType;
+		#endregion
+	}
+}