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
|
/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// 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 <private/qdaytimeduration_p.h>
#include <private/qdelegatingdynamiccontext_p.h>
#include <private/qexpression_p.h>
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_tpl_p.h"
/**
* @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
#endif
|
