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1 /* |
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2 * Copyright (c) 2004-2008 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 |
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18 using System; |
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19 using SymBuildParsingLib.Tree; |
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20 using SymBuildParsingLib.Token; |
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21 using SymbianTree; |
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22 |
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23 #region Example layout |
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24 // |
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25 // SymNodeConditionalExpression |
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26 // | |
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27 // +----- [if] SymNodeCondition [neg] |
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28 // +---------- { |
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29 // +---------- do something |
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30 // +---------- [if] SymNodeCondition [pos, but inherits neg] |
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31 // +--------------- { |
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32 // +--------------- do something else |
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33 // +--------------- } |
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34 // +---------- } |
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35 // | |
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36 // +----- [else if] SymNodeCondition [neg] |
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37 // +---------- { |
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38 // +---------- do something else |
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39 // +---------- } |
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40 // | |
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41 // +----- [else if] SymNodeCondition [pos] |
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42 // +---------- { |
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43 // +---------- do something else |
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44 // +---------- } |
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45 // | |
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46 // +----- [else] SymNodeCondition [neg] |
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47 // +---------- { |
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48 // +---------- do something else |
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49 // +---------- } |
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50 // |
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51 #endregion |
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52 |
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53 namespace SymBuildParsingLib.Parser.Framework.Nodes |
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54 { |
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55 public class SymNodeConditionalExpression : SymNodeToken |
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56 { |
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57 #region Constructors & destructor |
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58 public SymNodeConditionalExpression( SymToken aType ) |
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59 : base( aType ) |
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60 { |
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61 } |
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62 #endregion |
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63 |
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64 #region Properties |
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65 public bool InheritedValue |
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66 { |
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67 get { return iInheritedValue; } |
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68 set { iInheritedValue = value; } |
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69 } |
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70 |
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71 public bool HasPositiveBranch |
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72 { |
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73 get |
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74 { |
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75 bool found = ( PositiveBranch != null ); |
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76 return found; |
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77 } |
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78 } |
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79 |
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80 public SymNodeCondition PositiveBranch |
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81 { |
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82 get |
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83 { |
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84 SymNodeCondition found = null; |
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85 // |
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86 foreach( SymNode c in this ) |
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87 { |
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88 if ( c is SymNodeCondition ) |
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89 { |
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90 SymNodeCondition cond = (SymNodeCondition) c; |
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91 if ( cond.IsEvaluated && cond.EvaluationResult == true ) |
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92 { |
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93 found = cond; |
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94 break; |
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95 } |
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96 } |
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97 } |
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98 // |
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99 return found; |
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100 } |
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101 } |
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102 |
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103 public bool HasCondition |
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104 { |
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105 get |
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106 { |
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107 int count = ChildCountByType( typeof(SymNodeCondition) ); |
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108 return count > 0; |
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109 } |
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110 } |
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111 |
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112 public SymNodeCondition CurrentCondition |
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113 { |
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114 get |
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115 { |
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116 SymNodeCondition ret = (SymNodeCondition) LastChild; |
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117 return ret; |
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118 } |
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119 } |
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120 #endregion |
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121 |
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122 #region Data members |
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123 private bool iInheritedValue; |
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124 #endregion |
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125 } |
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126 } |