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6 | ** This file is part of the QtXmlPatterns module of the Qt Toolkit. |
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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_CallTargetDescription_H |
51 | #define Patternist_CallTargetDescription_H |
52 | |
53 | #include <QSharedData> |
54 | |
55 | #include <private/qexpression_p.h> |
56 | |
57 | QT_BEGIN_NAMESPACE |
58 | |
59 | template<typename Key, typename Value> class QHash; |
60 | template<typename T> class QList; |
61 | |
62 | namespace QPatternist |
63 | { |
64 | class CallSite; |
65 | |
66 | /** |
67 | * @short Contains metadata for a callable component, such as a function or |
68 | * template. |
69 | * |
70 | * CallTargetDescription can be used directly and is so for templates, but |
71 | * can also be sub-classed which FunctionSignature do. |
72 | * |
73 | * @ingroup Patternist_expr |
74 | * @author Frans Englich <frans.englich@nokia.com> |
75 | */ |
76 | class Q_AUTOTEST_EXPORT CallTargetDescription : public QSharedData |
77 | { |
78 | public: |
79 | typedef QExplicitlySharedDataPointer<CallTargetDescription> Ptr; |
80 | typedef QList<Ptr> List; |
81 | |
82 | CallTargetDescription(const QXmlName &name); |
83 | |
84 | /** |
85 | * The function's name. For example, the name of the signature |
86 | * <tt>fn:string() as xs:string</tt> is <tt>fn:string</tt>. |
87 | */ |
88 | QXmlName name() const; |
89 | |
90 | /** |
91 | * Flags callsites to be aware of their recursion by calling |
92 | * UserFunctionCallsite::configureRecursion(), if that is the case. |
93 | * |
94 | * @note We pass @p expr by value here intentionally. |
95 | */ |
96 | static void checkCallsiteCircularity(CallTargetDescription::List &signList, |
97 | const Expression::Ptr expr); |
98 | private: |
99 | /** |
100 | * Helper function for checkCallsiteCircularity(). If C++ allowed it, |
101 | * it would have been local to it. |
102 | */ |
103 | static void checkArgumentsCircularity(CallTargetDescription::List &signList, |
104 | const Expression::Ptr callsite); |
105 | |
106 | Q_DISABLE_COPY(CallTargetDescription) |
107 | const QXmlName m_name; |
108 | }; |
109 | } |
110 | |
111 | QT_END_NAMESPACE |
112 | |
113 | #endif |
114 | |
115 | |