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46 // This file is not part of the Qt API. It exists purely as an
47 // implementation detail. This header file may change from version to
48 // version without notice, or even be removed.
52 #ifndef Patternist_ItemVerifier_H
53 #define Patternist_ItemVerifier_H
55 #include <private/qsinglecontainer_p.h>
65 * @short Verifies that the items in a sequence an Expression evaluates
66 * is of a certain ItemType.
68 * @author Frans Englich <frans.englich@nokia.com>
69 * @ingroup Patternist_expressions
71 class ItemVerifier : public SingleContainer
75 ItemVerifier(const Expression::Ptr &operand,
76 const ItemType::Ptr &reqType,
77 const ReportContext::ErrorCode errorCode);
79 virtual Item evaluateSingleton(const DynamicContext::Ptr &) const;
80 virtual Item::Iterator::Ptr evaluateSequence(const DynamicContext::Ptr &) const;
82 virtual SequenceType::List expectedOperandTypes() const;
83 virtual SequenceType::Ptr staticType() const;
85 inline Item mapToItem(const Item &, const DynamicContext::Ptr &) const;
86 virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const;
87 virtual const SourceLocationReflection *actualReflection() const;
90 typedef QExplicitlySharedDataPointer<const ItemVerifier> ConstPtr;
91 inline void verifyItem(const Item &item,
92 const DynamicContext::Ptr &context) const;
94 const ItemType::Ptr m_reqType;
95 const ReportContext::ErrorCode m_errorCode;