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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_UnresolvedVariableReference_H
51#define Patternist_UnresolvedVariableReference_H
52
53#include <private/qemptycontainer_p.h>
54
55QT_BEGIN_NAMESPACE
56
57namespace QPatternist
58{
59
60 /**
61 * @short Compile time only AST-node which is a marker for variable
62 * references whose declaration has not yet appeared in the source code.
63 *
64 * This can not appear in XQuery, but can in XSL-T.
65 *
66 * @author Frans Englich <frans.englich@nokia.com>
67 * @ingroup Patternist_expressions
68 * @since 4.5
69 */
70 class Q_AUTOTEST_EXPORT UnresolvedVariableReference : public EmptyContainer
71 {
72 public:
73 UnresolvedVariableReference(const QXmlName &name);
74
75 virtual Expression::Ptr typeCheck(const StaticContext::Ptr &context,
76 const SequenceType::Ptr &reqType);
77 virtual SequenceType::List expectedOperandTypes() const;
78 virtual SequenceType::Ptr staticType() const;
79 virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const;
80 virtual ID id() const;
81
82 inline void bindTo(const Expression::Ptr &body);
83
84 inline Expression::Ptr replacement() const;
85
86 private:
87 const QXmlName m_name;
88 Expression::Ptr m_replacement;
89 };
90
91 void UnresolvedVariableReference::bindTo(const Expression::Ptr &body)
92 {
93 Q_ASSERT(body);
94 m_replacement = body;
95 }
96
97 Expression::Ptr UnresolvedVariableReference::replacement() const
98 {
99 Q_ASSERT(m_replacement);
100 return m_replacement;
101 }
102
103}
104
105QT_END_NAMESPACE
106
107#endif
108

source code of qtxmlpatterns/src/xmlpatterns/expr/qunresolvedvariablereference_p.h