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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_XsdAttributeReference_H
51#define Patternist_XsdAttributeReference_H
52
53#include <private/qxsdattributeuse_p.h>
54
55#include <QtXmlPatterns/QSourceLocation>
56
57QT_BEGIN_NAMESPACE
58
59namespace QPatternist
60{
61 /**
62 * @short A helper class for attribute reference resolving.
63 *
64 * For easy resolving of attribute references, we have this class
65 * that can be used as a place holder for the real attribute use
66 * object it is referring to.
67 * So whenever the parser detects an attribute reference, it creates
68 * a XsdAttributeReference and returns it instead of the XsdAttributeUse.
69 * During a later phase, the resolver will look for all XsdAttributeReferences
70 * in the schema and will replace them with their referring XsdAttributeUse
71 * objects.
72 *
73 * @ingroup Patternist_schema
74 * @author Tobias Koenig <tobias.koenig@nokia.com>
75 */
76 class XsdAttributeReference : public XsdAttributeUse
77 {
78 public:
79 typedef QExplicitlySharedDataPointer<XsdAttributeReference> Ptr;
80
81 /**
82 * Describes the type of the attribute reference.
83 */
84 enum Type
85 {
86 AttributeUse, ///< The reference points to an attribute use.
87 AttributeGroup ///< The reference points to an attribute group.
88 };
89
90 /**
91 * Always returns false, used to avoid dynamic casts.
92 */
93 virtual bool isAttributeUse() const;
94
95 /**
96 * Always returns true, used to avoid dynamic casts.
97 */
98 virtual bool isReference() const;
99
100 /**
101 * Sets the @p type of the attribute reference.
102 */
103 void setType(Type type);
104
105 /**
106 * Returns the type of the attribute reference.
107 */
108 Type type() const;
109
110 /**
111 * Sets the @p name of the attribute or attribute group the
112 * attribute reference refers to.
113 */
114 void setReferenceName(const QXmlName &name);
115
116 /**
117 * Returns the name of the attribute or attribute group the
118 * attribute reference refers to.
119 */
120 QXmlName referenceName() const;
121
122 /**
123 * Sets the source @p location where the reference is located.
124 */
125 void setSourceLocation(const QSourceLocation &location);
126
127 /**
128 * Returns the source location where the reference is located.
129 */
130 QSourceLocation sourceLocation() const;
131
132 private:
133 Type m_type;
134 QXmlName m_referenceName;
135 QSourceLocation m_sourceLocation;
136 };
137}
138
139QT_END_NAMESPACE
140
141#endif
142

source code of qtxmlpatterns/src/xmlpatterns/schema/qxsdattributereference_p.h