1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
#ifndef Patternist_StackContextBase_H
#define Patternist_StackContextBase_H
#include <QVector>
#include "qdaytimeduration_p.h"
#include "qdelegatingdynamiccontext_p.h"
#include "qexpression_p.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short Base class for all DynamicContext classes that needs to supply
* variables. It has a new frame for local caches, position iterators,
* expressions, range variables, template parameters but notably continues
* to delegate global caches.
*
* @author Frans Englich <frans.englich@nokia.com>
*/
template<typename TSuperClass>
class StackContextBase : public TSuperClass
{
public:
StackContextBase();
/**
* Construct a StackContextBase and passes @p prevContext to its super class. This
* constructor is typically used when the super class is DelegatingDynamicContext.
*/
StackContextBase(const DynamicContext::Ptr &prevContext);
virtual void setRangeVariable(const VariableSlotID slotNumber,
const Item &newValue);
virtual Item rangeVariable(const VariableSlotID slotNumber) const;
virtual void setExpressionVariable(const VariableSlotID slotNumber,
const Expression::Ptr &newValue);
virtual Expression::Ptr expressionVariable(const VariableSlotID slotNumber) const;
virtual Item::Iterator::Ptr positionIterator(const VariableSlotID slot) const;
virtual void setPositionIterator(const VariableSlotID slot,
const Item::Iterator::Ptr &newValue);
virtual ItemCacheCell &itemCacheCell(const VariableSlotID slot);
virtual ItemSequenceCacheCell::Vector &itemSequenceCacheCells(const VariableSlotID slot);
virtual DynamicContext::TemplateParameterHash &templateParameterStore();
protected:
/**
* This function is protected, although it only is used in this class. I don't
* know why it has to be, but it won't compile when private.
*/
template<typename VectorType, typename UnitType>
inline
void setSlotVariable(const VariableSlotID slot,
const UnitType &newValue,
VectorType &container) const;
private:
Item::Vector m_rangeVariables;
Expression::Vector m_expressionVariables;
Item::Iterator::Vector m_positionIterators;
ItemCacheCell::Vector m_itemCacheCells;
ItemSequenceCacheCell::Vector m_itemSequenceCacheCells;
DynamicContext::TemplateParameterHash m_templateParameterStore;
};
#include "qstackcontextbase.cpp"
/**
* @short A DynamicContext that creates a new scope for variables.
*
* This DynamicContext is used for recursive user function calls, for example.
*/
typedef StackContextBase<DelegatingDynamicContext> StackContext;
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
|
