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46 // This file is not part of the Qt API. It exists purely as an
47 // implementation detail. This header file may change from version to
48 // version without notice, or even be removed.
52 #ifndef Patternist_DeduplicateIterator_H
53 #define Patternist_DeduplicateIterator_H
57 #include "qexpression_p.h"
59 #include "qatomiccomparator_p.h"
60 #include "qcomparisonplatform_p.h"
61 #include "qsourcelocationreflection_p.h"
71 * @short Performs deduplication of the nodes on its source list.
73 * @note The nodes in the source list must be in document order.
75 * @author Frans Englich <frans.englich@nokia.com>
76 * @ingroup Patternist_iterators
78 class DeduplicateIterator : public ListIterator<Item>
81 DeduplicateIterator(const Item::List &source);
84 virtual Item::Iterator::Ptr copy() const;
85 virtual xsInteger count();
89 * m_position in ListIteratorPlatform is the position that we
90 * show to the outside through position) but do not correspond
91 * to the position in m_list, since we skip entries in that one.
93 * However, this guy, m_listPos, is the position into m_list.