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42 #include "qcommonvalues_p.h"
43 #include "qcommonsequencetypes_p.h"
44 #include "qemptysequencetype_p.h"
46 #include "qemptysequence_p.h"
50 using namespace QPatternist;
52 Expression::Ptr EmptySequence::create(const Expression *const replacementFor,
53 const StaticContext::Ptr &context)
55 Q_ASSERT(replacementFor);
58 const Expression::Ptr retval(new EmptySequence());
59 context->wrapExpressionWith(replacementFor, retval);
63 Item::Iterator::Ptr EmptySequence::evaluateSequence(const DynamicContext::Ptr &) const
65 return CommonValues::emptyIterator;
68 Item EmptySequence::evaluateSingleton(const DynamicContext::Ptr &) const
73 void EmptySequence::evaluateToSequenceReceiver(const DynamicContext::Ptr &) const
77 ItemType::Ptr EmptySequence::type() const
79 return CommonSequenceTypes::Empty;
82 SequenceType::Ptr EmptySequence::staticType() const
84 return CommonSequenceTypes::Empty;
87 bool EmptySequence::evaluateEBV(const DynamicContext::Ptr &) const
92 QString EmptySequence::stringValue() const
97 ExpressionVisitorResult::Ptr EmptySequence::accept(const ExpressionVisitor::Ptr &visitor) const
99 return visitor->visit(this);
102 Expression::ID EmptySequence::id() const
104 return IDEmptySequence;
107 Expression::Properties EmptySequence::properties() const