1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 * 

    14 * Description:

    15 *

    16 */

    17 using System;

    18 using System.IO;

    19 using System.Collections.Generic;

    20 

    21 namespace SymbolLib.Generics

    22 {

    23 	internal class GenericSymbolComparer : IComparer<GenericSymbol>

    24 	{

    25         #region IComparer<GenericSymbol> Members

    26         int IComparer<GenericSymbol>.Compare( GenericSymbol aLeft, GenericSymbol aRight )

    27         {

    28             int ret = -1;

    29             //

    30             if ( aLeft == null || aRight == null )

    31             {

    32                 if ( aRight == null )

    33                 {

    34                     ret = 1;

    35                 }

    36             }

    37             else

    38             {

    39                 int ret2 = aLeft.AddressRange.CompareTo( aRight.AddressRange );

    40                 GenericSymbol left = aLeft;

    41                 System.Diagnostics.Debug.Assert( left.EndAddress >= left.Address );

    42                 GenericSymbol right = aRight;

    43                 System.Diagnostics.Debug.Assert( right.EndAddress >= right.Address );

    44                 //

    45                 if ( left.Address == right.Address && left.EndAddress == right.EndAddress )

    46                 {

    47                     ret = 0;

    48                 }

    49                 else if ( left.EndAddress == right.Address )

    50                 {

    51                     System.Diagnostics.Debug.Assert( left.Address < right.Address );

    52                     System.Diagnostics.Debug.Assert( right.EndAddress >= left.EndAddress );

    53                     //

    54                     ret = -1;

    55                 }

    56                 else if ( left.Address == right.EndAddress )

    57                 {

    58                     System.Diagnostics.Debug.Assert( right.Address < left.Address );

    59                     System.Diagnostics.Debug.Assert( left.EndAddress >= right.EndAddress );

    60                     //

    61                     ret = 1;

    62                 }

    63                 else if ( left.Address > right.EndAddress )

    64                 {

    65                     System.Diagnostics.Debug.Assert( left.EndAddress > right.EndAddress );

    66                     System.Diagnostics.Debug.Assert( left.EndAddress > right.Address );

    67                     ret = 1;

    68                 }

    69                 else if ( left.EndAddress < right.Address )

    70                 {

    71                     System.Diagnostics.Debug.Assert( left.Address < right.EndAddress );

    72                     System.Diagnostics.Debug.Assert( right.EndAddress > left.EndAddress );

    73                     ret = -1;

    74                 }

    75                 System.Diagnostics.Debug.Assert( ret2 == ret );

    76             }

    77             //

    78             return ret;

    79           }

    80         #endregion

    81     }

    82 }