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39
40#include "qdeduplicateiterator_p.h"
41
42QT_BEGIN_NAMESPACE
43
44using namespace QPatternist;
45
46DeduplicateIterator::DeduplicateIterator(const Item::List &source) : ListIterator<Item>(source)
47 , m_listPos(0)
48{
49 Q_ASSERT(!Item());
50 Q_ASSERT(!Item().isNode());
51 Q_ASSERT(!Item().isAtomicValue());
52}
53
54Item DeduplicateIterator::next()
55{
56 if(m_listPos == m_list.count())
57 {
58 m_current.reset();
59 m_position = -1;
60 return Item();
61 }
62
63 Item next(m_list.at(i: m_listPos));
64
65 while(next.asNode().is(other: m_current.asNode()))
66 {
67 ++m_listPos;
68 if(m_listPos == m_list.count())
69 {
70 m_current.reset();
71 m_position = -1;
72 return Item();
73 }
74 else
75 next = m_list.at(i: m_listPos);
76 }
77
78 ++m_position;
79 m_current = next;
80 return next;
81}
82
83xsInteger DeduplicateIterator::count()
84{
85 return QAbstractXmlForwardIterator<Item>::count();
86}
87
88Item::Iterator::Ptr DeduplicateIterator::copy() const
89{
90 return Item::Iterator::Ptr(new DeduplicateIterator(m_list));
91}
92
93QT_END_NAMESPACE
94

source code of qtxmlpatterns/src/xmlpatterns/iterators/qdeduplicateiterator.cpp