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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 using System; |
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18 using System.IO; |
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19 using System.Collections.Generic; |
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20 |
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21 namespace SymbolLib.Generics |
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22 { |
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23 internal class GenericSymbolComparer : IComparer<GenericSymbol> |
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24 { |
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25 #region IComparer<GenericSymbol> Members |
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26 int IComparer<GenericSymbol>.Compare( GenericSymbol aLeft, GenericSymbol aRight ) |
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27 { |
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28 int ret = -1; |
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29 // |
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30 if ( aLeft == null || aRight == null ) |
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31 { |
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32 if ( aRight == null ) |
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33 { |
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34 ret = 1; |
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35 } |
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36 } |
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37 else |
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38 { |
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39 int ret2 = aLeft.AddressRange.CompareTo( aRight.AddressRange ); |
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40 GenericSymbol left = aLeft; |
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41 System.Diagnostics.Debug.Assert( left.EndAddress >= left.Address ); |
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42 GenericSymbol right = aRight; |
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43 System.Diagnostics.Debug.Assert( right.EndAddress >= right.Address ); |
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44 // |
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45 if ( left.Address == right.Address && left.EndAddress == right.EndAddress ) |
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46 { |
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47 ret = 0; |
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48 } |
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49 else if ( left.EndAddress == right.Address ) |
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50 { |
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51 System.Diagnostics.Debug.Assert( left.Address < right.Address ); |
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52 System.Diagnostics.Debug.Assert( right.EndAddress >= left.EndAddress ); |
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53 // |
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54 ret = -1; |
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55 } |
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56 else if ( left.Address == right.EndAddress ) |
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57 { |
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58 System.Diagnostics.Debug.Assert( right.Address < left.Address ); |
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59 System.Diagnostics.Debug.Assert( left.EndAddress >= right.EndAddress ); |
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60 // |
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61 ret = 1; |
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62 } |
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63 else if ( left.Address > right.EndAddress ) |
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64 { |
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65 System.Diagnostics.Debug.Assert( left.EndAddress > right.EndAddress ); |
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66 System.Diagnostics.Debug.Assert( left.EndAddress > right.Address ); |
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67 ret = 1; |
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68 } |
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69 else if ( left.EndAddress < right.Address ) |
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70 { |
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71 System.Diagnostics.Debug.Assert( left.Address < right.EndAddress ); |
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72 System.Diagnostics.Debug.Assert( right.EndAddress > left.EndAddress ); |
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73 ret = -1; |
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74 } |
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75 System.Diagnostics.Debug.Assert( ret2 == ret ); |
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76 } |
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77 // |
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78 return ret; |
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79 } |
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80 #endregion |
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81 } |
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82 } |