Qt 4.8
qitemtype.cpp
Go to the documentation of this file.
1 /****************************************************************************
2 **
3 ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/legal
5 **
6 ** This file is part of the QtXmlPatterns module of the Qt Toolkit.
7 **
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** Commercial License Usage
10 ** Licensees holding valid commercial Qt licenses may use this file in
11 ** accordance with the commercial license agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Digia. For licensing terms and
14 ** conditions see http://qt.digia.com/licensing. For further information
15 ** use the contact form at http://qt.digia.com/contact-us.
16 **
17 ** GNU Lesser General Public License Usage
18 ** Alternatively, this file may be used under the terms of the GNU Lesser
19 ** General Public License version 2.1 as published by the Free Software
20 ** Foundation and appearing in the file LICENSE.LGPL included in the
21 ** packaging of this file. Please review the following information to
22 ** ensure the GNU Lesser General Public License version 2.1 requirements
23 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
24 **
25 ** In addition, as a special exception, Digia gives you certain additional
26 ** rights. These rights are described in the Digia Qt LGPL Exception
27 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
28 **
29 ** GNU General Public License Usage
30 ** Alternatively, this file may be used under the terms of the GNU
31 ** General Public License version 3.0 as published by the Free Software
32 ** Foundation and appearing in the file LICENSE.GPL included in the
33 ** packaging of this file. Please review the following information to
34 ** ensure the GNU General Public License version 3.0 requirements will be
35 ** met: http://www.gnu.org/copyleft/gpl.html.
36 **
37 **
38 ** $QT_END_LICENSE$
39 **
40 ****************************************************************************/
41 
42 #include <QtGlobal>
43 
44 #include "qcommonsequencetypes_p.h"
45 
46 #include "qitemtype_p.h"
47 
49 
50 using namespace QPatternist;
51 
53 {
54 }
55 
56 const ItemType &ItemType::operator|(const ItemType &other) const
57 {
58  const ItemType *ca = this;
59 
60  if(other == *CommonSequenceTypes::None)
61  return *ca;
62 
63  if(*ca == *CommonSequenceTypes::Empty)
64  return other;
65  else if(other == *CommonSequenceTypes::Empty)
66  return *ca;
67 
68  do
69  {
70  const ItemType *cb = &other;
71  do
72  {
73  if(*ca == *cb)
74  return *ca;
75 
76  cb = cb->xdtSuperType().data();
77  }
78  while(cb);
79 
80  ca = ca->xdtSuperType().data();
81  }
82  while(ca);
83 
84  Q_ASSERT_X(false, Q_FUNC_INFO, "We should never reach this line.");
85  return *this;
86 }
87 
89 {
90  return Other;
91 }
92 
93 bool ItemType::operator==(const ItemType &other) const
94 {
95  return this == &other;
96 }
97 
99 {
100  return ClassOther;
101 }
102 
virtual InstanceOf instanceOf() const
Definition: qitemtype.cpp:98
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
virtual bool operator==(const ItemType &other) const
Definition: qitemtype.cpp:93
virtual const ItemType & operator|(const ItemType &other) const
Definition: qitemtype.cpp:56
T * data() const
Returns a pointer to the shared data object.
Definition: qshareddata.h:145
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
The namespace for the internal API of QtXmlPatterns.
virtual ItemType::Ptr xdtSuperType() const =0
static const EmptySequenceType::Ptr Empty
#define Q_ASSERT_X(cond, where, what)
Definition: qglobal.h:1837
Base class for the XPath Data Model&#39;s type hierarchy.
Definition: qitemtype_p.h:82
virtual Category itemTypeCategory() const
Definition: qitemtype.cpp:88
#define Q_FUNC_INFO
Definition: qglobal.h:1871