diff -r 000000000000 -r 818e61de6cd1 crashanalysercmd/PerfToolsSharedLibraries/Engine/SymbianStructuresLib/Debug/Symbols/Symbols/InternedName.cs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crashanalysercmd/PerfToolsSharedLibraries/Engine/SymbianStructuresLib/Debug/Symbols/Symbols/InternedName.cs	Thu Feb 11 15:50:58 2010 +0200
@@ -0,0 +1,176 @@
+#define TRACK_INTERNING_STATISTICS
+/*
+* Copyright (c) 2009 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 System.Text;
+using System.Text.RegularExpressions;
+using System.ComponentModel;
+using SymbianUtils.Range;
+using SymbianUtils.Strings;
+using SymbianStructuresLib.Arm;
+using SymbianStructuresLib.MemoryModel;
+using SymbianStructuresLib.Debug.Symbols.Constants;
+using SymbianStructuresLib.Debug.Common.Id;
+
+namespace SymbianStructuresLib.Debug.Symbols
+{
+	internal class InternedName
+    {
+        #region Static constructors
+        public static InternedName NewExplicit( string aText )
+        {
+            InternedName ret = new InternedName( aText, string.Empty );
+            return ret;
+        }
+
+        public static InternedName New( string aText )
+        {
+            InternedName ret = new InternedName( aText );
+            return ret;
+        }
+        #endregion
+
+        #region Constructors
+        private InternedName( string aName )
+        {
+            int doubleColonPos = aName.LastIndexOf( "::" );
+            if ( doubleColonPos > 0 )
+            {
+                iNamePart1 = aName.Substring( 0, doubleColonPos + 2 );
+                iNamePart2 = aName.Substring( doubleColonPos + 2 );
+            }
+            else if ( aName.Contains( "typeinfo for " ) )
+            {
+                iNamePart1 = "typeinfo for ";
+                iNamePart2 = aName.Substring( 13 );
+            }
+            else if ( aName.Contains( "vtable for " ) )
+            {
+                iNamePart1 = "vtable for ";
+                iNamePart2 = aName.Substring( 11 );
+            }
+            else
+            {
+                iNamePart1 = aName;
+                iNamePart2 = string.Empty;
+            }
+
+            // Record intern stats
+#if TRACK_INTERNING_STATISTICS
+            UpdateStatistics();
+#endif
+
+            // Now get the interned strings
+            iNamePart1 = string.Intern( iNamePart1 );
+            iNamePart2 = string.Intern( iNamePart2 );
+        }
+
+        private InternedName( string aPart1, string aPart2 )
+        {
+            iNamePart1 = string.Intern( aPart1 );
+            iNamePart2 = string.Intern( aPart2 );
+        }
+        #endregion
+
+        #region API
+        public static bool IsFunction( string aText )
+        {
+            bool ret = aText.Contains( "(" ) && aText.Contains( ")" );
+            return ret;
+        }
+
+        public static bool IsVTable( string aText )
+        {
+            bool ret = StringUtils.StartsWithAny( SymbolConstants.KVTableOrTypeInfoPrefixes, aText );
+            return ret;
+        }
+
+        public static bool IsReadOnly( string aText )
+        {
+            bool ret = aText.StartsWith( SymbolConstants.KPrefixReadonly );
+            return ret;
+        }
+
+        public static bool IsSubObject( string aText )
+        {
+            bool ret = aText.EndsWith( SymbolConstants.KPrefixSubObject );
+            return ret;
+        }
+
+        public void PrintStats()
+        {
+#if TRACK_INTERNING_STATISTICS
+#endif
+        }
+        #endregion
+
+        #region Internal methods
+#if TRACK_INTERNING_STATISTICS
+        private void UpdateStatistics()
+        {
+            UpdateStatistics( iNamePart1 );
+            UpdateStatistics( iNamePart2 );
+        }
+
+        private void UpdateStatistics( string aText )
+        {
+            if ( string.IsInterned( aText ) != null )
+            {
+                InternStats[ 0 ].Update( aText ); 
+            }
+            else
+            {
+                InternStats[ 1 ].Update( aText );
+            }
+        }
+#endif
+        #endregion
+
+        #region From System.Object
+        public override string ToString()
+        {
+            return iNamePart1 + iNamePart2;
+        }
+        #endregion
+
+        #region Internal classes
+#if TRACK_INTERNING_STATISTICS
+        private class InternStatistics
+        {
+            public void Update( string aText )
+            {
+                ++iCount;
+                iSize += (uint) ( aText.Length * 2 );
+            }
+            //
+            private uint iCount = 0;
+            private ulong iSize = 0;
+        }
+#endif
+        #endregion
+
+        #region Data members
+        private readonly string iNamePart1;
+        private readonly string iNamePart2;
+
+#if TRACK_INTERNING_STATISTICS
+        private static readonly InternStatistics[] InternStats = new InternStatistics[] { new InternStatistics(), new InternStatistics() };
+#endif
+       #endregion
+    }
+}
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