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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the QtXmlPatterns module of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #include "qboolean_p.h" |
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43 #include "qbuiltintypes_p.h" |
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44 #include "qcommonsequencetypes_p.h" |
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45 #include "qgenericsequencetype_p.h" |
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46 |
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47 #include "qliteral_p.h" |
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48 |
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49 QT_BEGIN_NAMESPACE |
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50 |
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51 using namespace QPatternist; |
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52 |
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53 Literal::Literal(const Item &i) : m_item(i) |
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54 { |
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55 Q_ASSERT(m_item); |
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56 Q_ASSERT(m_item.isAtomicValue()); |
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57 } |
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58 |
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59 Item Literal::evaluateSingleton(const DynamicContext::Ptr &) const |
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60 { |
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61 return m_item; |
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62 } |
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63 |
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64 bool Literal::evaluateEBV(const DynamicContext::Ptr &context) const |
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65 { |
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66 return Boolean::evaluateEBV(m_item, context); |
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67 } |
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68 |
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69 void Literal::evaluateToSequenceReceiver(const DynamicContext::Ptr &context) const |
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70 { |
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71 context->outputReceiver()->item(m_item); |
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72 } |
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73 |
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74 SequenceType::Ptr Literal::staticType() const |
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75 { |
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76 return makeGenericSequenceType(m_item.type(), Cardinality::exactlyOne()); |
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77 } |
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78 |
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79 ExpressionVisitorResult::Ptr Literal::accept(const ExpressionVisitor::Ptr &visitor) const |
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80 { |
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81 return visitor->visit(this); |
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82 } |
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83 |
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84 Expression::ID Literal::id() const |
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85 { |
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86 Q_ASSERT(m_item); |
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87 Q_ASSERT(m_item.isAtomicValue()); |
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88 const ItemType::Ptr t(m_item.type()); |
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89 |
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90 if(BuiltinTypes::xsBoolean->xdtTypeMatches(t)) |
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91 return IDBooleanValue; |
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92 else if(BuiltinTypes::xsString->xdtTypeMatches(t) || |
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93 BuiltinTypes::xsAnyURI->xdtTypeMatches(t) || |
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94 BuiltinTypes::xsUntypedAtomic->xdtTypeMatches(t)) |
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95 { |
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96 return IDStringValue; |
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97 } |
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98 else if(BuiltinTypes::xsInteger->xdtTypeMatches(t)) |
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99 return IDIntegerValue; |
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100 else |
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101 return IDFloat; |
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102 } |
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103 |
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104 Expression::Properties Literal::properties() const |
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105 { |
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106 return IsEvaluated; |
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107 } |
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108 |
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109 QString Literal::description() const |
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110 { |
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111 return m_item.stringValue(); |
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112 } |
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113 |
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114 QT_END_NAMESPACE |