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39
40 #include <QUrl>
41
42 #include "qcommonsequencetypes_p.h"
43 #include "qnodebuilder_p.h"
44 #include "qqnamevalue_p.h"
45
46 #include "qattributeconstructor_p.h"
47
48 QT_BEGIN_NAMESPACE
49
50 using namespace QPatternist;
51
AttributeConstructor(const Expression::Ptr & op1,const Expression::Ptr & op2)52 AttributeConstructor::AttributeConstructor(const Expression::Ptr &op1,
53 const Expression::Ptr &op2) : PairContainer(op1, op2)
54 {
55 }
56
processValue(const QXmlName name,const Item & value)57 QString AttributeConstructor::processValue(const QXmlName name,
58 const Item &value)
59 {
60 if(!value)
61 return QString();
62 else if(name == QXmlName(StandardNamespaces::xml, StandardLocalNames::id))
63 return value.stringValue().simplified();
64 else
65 return value.stringValue();
66 }
67
evaluateSingleton(const DynamicContext::Ptr & context) const68 Item AttributeConstructor::evaluateSingleton(const DynamicContext::Ptr &context) const
69 {
70 const Item nameItem(m_operand1->evaluateSingleton(context));
71 const Item content(m_operand2->evaluateSingleton(context));
72
73 const QXmlName name(nameItem.as<QNameValue>()->qName());
74 const QString value(processValue(name, content));
75 const NodeBuilder::Ptr nodeBuilder(context->nodeBuilder(QUrl()));
76
77 nodeBuilder->attribute(name, QStringRef(&value));
78
79 const QAbstractXmlNodeModel::Ptr nm(nodeBuilder->builtDocument());
80 context->addNodeModel(nm);
81 return nm->root(QXmlNodeModelIndex());
82 }
83
evaluateToSequenceReceiver(const DynamicContext::Ptr & context) const84 void AttributeConstructor::evaluateToSequenceReceiver(const DynamicContext::Ptr &context) const
85 {
86 QAbstractXmlReceiver *const receiver = context->outputReceiver();
87 const Item nameItem(m_operand1->evaluateSingleton(context));
88
89 const Item content(m_operand2->evaluateSingleton(context));
90 const QXmlName name(nameItem.as<QNameValue>()->qName());
91 const QString value(processValue(name, content));
92
93 receiver->attribute(name, QStringRef(&value));
94 }
95
staticType() const96 SequenceType::Ptr AttributeConstructor::staticType() const
97 {
98 return CommonSequenceTypes::ExactlyOneAttribute;
99 }
100
expectedOperandTypes() const101 SequenceType::List AttributeConstructor::expectedOperandTypes() const
102 {
103 SequenceType::List result;
104 result.append(CommonSequenceTypes::ExactlyOneQName);
105 result.append(CommonSequenceTypes::ZeroOrMoreItems);
106 return result;
107 }
108
properties() const109 Expression::Properties AttributeConstructor::properties() const
110 {
111 return DisableElimination | IsNodeConstructor;
112 }
113
114 ExpressionVisitorResult::Ptr
accept(const ExpressionVisitor::Ptr & visitor) const115 AttributeConstructor::accept(const ExpressionVisitor::Ptr &visitor) const
116 {
117 return visitor->visit(this);
118 }
119
id() const120 Expression::ID AttributeConstructor::id() const
121 {
122 return IDAttributeConstructor;
123 }
124
125 QT_END_NAMESPACE
126