blob: 258f2d33758362e3e068e705cbcec7956c020a47 (
plain)
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
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qbuiltintypes_p.h"
#include "qcommonsequencetypes_p.h"
#include "qgenericsequencetype_p.h"
#include "qcontextitem_p.h"
QT_BEGIN_NAMESPACE
using namespace QPatternist;
Item ContextItem::evaluateSingleton(const DynamicContext::Ptr &context) const
{
return context->contextItem();
}
Expression::Ptr ContextItem::compress(const StaticContext::Ptr &context)
{
m_itemType = context->contextItemType();
return EmptyContainer::compress(context);
}
Expression::Ptr ContextItem::typeCheck(const StaticContext::Ptr &context,
const SequenceType::Ptr &reqType)
{
m_itemType = context->contextItemType();
return EmptyContainer::typeCheck(context, reqType);
}
SequenceType::Ptr ContextItem::staticType() const
{
/* We test m_itemType here because Patternist View calls staticType() before the typeCheck()
* stage. */
if(m_itemType)
return makeGenericSequenceType(m_itemType, Cardinality::exactlyOne());
else
return CommonSequenceTypes::ExactlyOneItem;
}
Expression::Properties ContextItem::properties() const
{
return DisableElimination | RequiresContextItem | EvaluationCacheRedundant;
}
ExpressionVisitorResult::Ptr ContextItem::accept(const ExpressionVisitor::Ptr &visitor) const
{
return visitor->visit(this);
}
Expression::ID ContextItem::id() const
{
return IDContextItem;
}
ItemType::Ptr ContextItem::expectedContextItemType() const
{
return BuiltinTypes::item;
}
const SourceLocationReflection *ContextItem::actualReflection() const
{
if(m_expr)
return m_expr.data();
else
return this;
}
void ContextItem::announceFocusType(const ItemType::Ptr &type)
{
Q_ASSERT(type);
m_itemType = type;
}
QT_END_NAMESPACE
|
