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42 #include "qitemmappingiterator_p.h"
43 #include "qsequencemappingiterator_p.h"
45 #include "qargumentconverter_p.h"
49 using namespace QPatternist;
51 ArgumentConverter::ArgumentConverter(const Expression::Ptr &operand,
52 const ItemType::Ptr &reqType) : UntypedAtomicConverter(operand, reqType)
56 ExpressionVisitorResult::Ptr ArgumentConverter::accept(const ExpressionVisitor::Ptr &visitor) const
58 return visitor->visit(this);
61 Item::Iterator::Ptr ArgumentConverter::mapToSequence(const Item &item,
62 const DynamicContext::Ptr &context) const
64 if(item.isAtomicValue() && !BuiltinTypes::xsUntypedAtomic->xdtTypeMatches(item.type()))
65 return makeSingletonIterator(item);
68 /* We're using UntypedAtomicConverter::mapToItem(). */
69 return makeItemMappingIterator<Item>(ConstPtr(this),
70 item.sequencedTypedValue(),
75 Item::Iterator::Ptr ArgumentConverter::evaluateSequence(const DynamicContext::Ptr &context) const
77 return makeSequenceMappingIterator<Item>(ConstPtr(this),
78 m_operand->evaluateSequence(context),
82 Item ArgumentConverter::evaluateSingleton(const DynamicContext::Ptr &context) const
84 const Item item(m_operand->evaluateSingleton(context));
87 return mapToItem(item, context);
88 else /* Empty is allowed. ArgumentConverter doesn't care about cardinality. */
92 SequenceType::List ArgumentConverter::expectedOperandTypes() const
94 SequenceType::List result;
95 result.append(CommonSequenceTypes::ZeroOrMoreItems);
99 SequenceType::Ptr ArgumentConverter::staticType() const
101 return CommonSequenceTypes::ZeroOrMoreAtomicTypes;