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39
40//
41// W A R N I N G
42// -------------
43//
44// This file is not part of the Qt API. It exists purely as an
45// implementation detail. This header file may change from version to
46// version without notice, or even be removed.
47//
48// We mean it.
49
50#ifndef Patternist_ItemVerifier_H
51#define Patternist_ItemVerifier_H
52
53#include <private/qsinglecontainer_p.h>
54
55QT_BEGIN_NAMESPACE
56
57namespace QPatternist
58{
59
60 /**
61 * @short Verifies that the items in a sequence an Expression evaluates
62 * is of a certain ItemType.
63 *
64 * @author Frans Englich <frans.englich@nokia.com>
65 * @ingroup Patternist_expressions
66 */
67 class ItemVerifier : public SingleContainer
68 {
69 public:
70
71 ItemVerifier(const Expression::Ptr &operand,
72 const ItemType::Ptr &reqType,
73 const ReportContext::ErrorCode errorCode);
74
75 virtual Item evaluateSingleton(const DynamicContext::Ptr &) const;
76 virtual Item::Iterator::Ptr evaluateSequence(const DynamicContext::Ptr &) const;
77
78 virtual SequenceType::List expectedOperandTypes() const;
79 virtual SequenceType::Ptr staticType() const;
80
81 inline Item mapToItem(const Item &, const DynamicContext::Ptr &) const;
82 virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const;
83 virtual const SourceLocationReflection *actualReflection() const;
84
85 private:
86 typedef QExplicitlySharedDataPointer<const ItemVerifier> ConstPtr;
87 inline void verifyItem(const Item &item,
88 const DynamicContext::Ptr &context) const;
89
90 const ItemType::Ptr m_reqType;
91 const ReportContext::ErrorCode m_errorCode;
92 };
93}
94
95QT_END_NAMESPACE
96
97#endif
98

source code of qtxmlpatterns/src/xmlpatterns/janitors/qitemverifier_p.h