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39
40#include "qitemmappingiterator_p.h"
41#include "qsequencemappingiterator_p.h"
42
43#include "qargumentconverter_p.h"
44
45QT_BEGIN_NAMESPACE
46
47using namespace QPatternist;
48
49ArgumentConverter::ArgumentConverter(const Expression::Ptr &operand,
50 const ItemType::Ptr &reqType) : UntypedAtomicConverter(operand, reqType)
51{
52}
53
54ExpressionVisitorResult::Ptr ArgumentConverter::accept(const ExpressionVisitor::Ptr &visitor) const
55{
56 return visitor->visit(this);
57}
58
59Item::Iterator::Ptr ArgumentConverter::mapToSequence(const Item &item,
60 const DynamicContext::Ptr &context) const
61{
62 if(item.isAtomicValue() && !BuiltinTypes::xsUntypedAtomic->xdtTypeMatches(other: item.type()))
63 return makeSingletonIterator(item);
64 else
65 {
66 /* We're using UntypedAtomicConverter::mapToItem(). */
67 return makeItemMappingIterator<Item>(mapper: ConstPtr(this),
68 source: item.sequencedTypedValue(),
69 context);
70 }
71}
72
73Item::Iterator::Ptr ArgumentConverter::evaluateSequence(const DynamicContext::Ptr &context) const
74{
75 return makeSequenceMappingIterator<Item>(mapper: ConstPtr(this),
76 source: m_operand->evaluateSequence(context),
77 context);
78}
79
80Item ArgumentConverter::evaluateSingleton(const DynamicContext::Ptr &context) const
81{
82 const Item item(m_operand->evaluateSingleton(context));
83
84 if(item)
85 return mapToItem(item, context);
86 else /* Empty is allowed. ArgumentConverter doesn't care about cardinality. */
87 return Item();
88}
89
90SequenceType::List ArgumentConverter::expectedOperandTypes() const
91{
92 SequenceType::List result;
93 result.append(t: CommonSequenceTypes::ZeroOrMoreItems);
94 return result;
95}
96
97SequenceType::Ptr ArgumentConverter::staticType() const
98{
99 return CommonSequenceTypes::ZeroOrMoreAtomicTypes;
100}
101
102QT_END_NAMESPACE
103

source code of qtxmlpatterns/src/xmlpatterns/janitors/qargumentconverter.cpp