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| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| |
| #ifndef Patternist_QuantifiedExpression_H |
| #define Patternist_QuantifiedExpression_H |
| |
| #include <private/qpaircontainer_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace QPatternist |
| { |
| /** |
| * @short Implements XPath 2.0's quantification expressions @c some and @c every. |
| * |
| * @see <a href="http://www.w3.org/TR/xpath20/#id-quantified-expressions">XML Path Language |
| * (XPath) 2.0, 3.9 Quantified Expressions</a> |
| * @author Frans Englich <frans.englich@nokia.com> |
| * @ingroup Patternist_expressions |
| */ |
| class Q_AUTOTEST_EXPORT QuantifiedExpression : public PairContainer |
| { |
| public: |
| enum Operator |
| { |
| Some = 1, |
| Every |
| }; |
| |
| QuantifiedExpression(const VariableSlotID varSlot, |
| const Operator quantifier, |
| const Expression::Ptr &inClause, |
| const Expression::Ptr &testExpression); |
| |
| virtual bool evaluateEBV(const DynamicContext::Ptr &context) const; |
| virtual SequenceType::Ptr staticType() const; |
| virtual SequenceType::List expectedOperandTypes() const; |
| |
| Operator operatorID() const; |
| |
| /** |
| * Determines the string representation for a quantification operator. |
| * |
| * @return "some" if @p quantifier is Some, or "every" if @p quantifier |
| * is Every |
| */ |
| static QString displayName(const Operator quantifier); |
| |
| virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const; |
| |
| inline Item mapToItem(const Item &item, const DynamicContext::Ptr &context) const; |
| |
| private: |
| typedef QExplicitlySharedDataPointer<const QuantifiedExpression> ConstPtr; |
| const VariableSlotID m_varSlot; |
| const Operator m_quantifier; |
| }; |
| } |
| |
| QT_END_NAMESPACE |
| |
| #endif |