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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_DeduplicateIterator_H
51#define Patternist_DeduplicateIterator_H
52
53#include <QList>
54
55#include <private/qexpression_p.h>
56#include <private/qitem_p.h>
57#include <private/qatomiccomparator_p.h>
58#include <private/qcomparisonplatform_p.h>
59#include <private/qsourcelocationreflection_p.h>
60
61QT_BEGIN_NAMESPACE
62
63namespace QPatternist
64{
65
66 /**
67 * @short Performs deduplication of the nodes on its source list.
68 *
69 * @note The nodes in the source list must be in document order.
70 *
71 * @author Frans Englich <frans.englich@nokia.com>
72 * @ingroup Patternist_iterators
73 */
74 class DeduplicateIterator : public ListIterator<Item>
75 {
76 public:
77 DeduplicateIterator(const Item::List &source);
78
79 virtual Item next();
80 virtual Item::Iterator::Ptr copy() const;
81 virtual xsInteger count();
82
83 private:
84 /**
85 * m_position in ListIteratorPlatform is the position that we
86 * show to the outside through position) but do not correspond
87 * to the position in m_list, since we skip entries in that one.
88 *
89 * However, this guy, m_listPos, is the position into m_list.
90 */
91 int m_listPos;
92 };
93}
94
95QT_END_NAMESPACE
96
97#endif
98

source code of qtxmlpatterns/src/xmlpatterns/iterators/qdeduplicateiterator_p.h