summaryrefslogtreecommitdiffstats
path: root/src/xmlpatterns/expr/qdocumentconstructor.cpp
blob: 347eec355e01307576132e474332599e17a4f790 (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
113
114
/****************************************************************************
**
** 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 "qcommonsequencetypes_p.h"
#include "qdocumentcontentvalidator_p.h"
#include "qnodebuilder_p.h"

#include "qdocumentconstructor_p.h"

QT_BEGIN_NAMESPACE

using namespace QPatternist;

DocumentConstructor::DocumentConstructor(const Expression::Ptr &op) : SingleContainer(op)
{
}

Item DocumentConstructor::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    NodeBuilder::Ptr nodeBuilder(context->nodeBuilder(m_staticBaseURI));

    DocumentContentValidator validator(nodeBuilder.data(), context, ConstPtr(this));
    const DynamicContext::Ptr receiverContext(context->createReceiverContext(&validator));

    validator.startDocument();
    m_operand->evaluateToSequenceReceiver(receiverContext);
    validator.endDocument();

    const QAbstractXmlNodeModel::Ptr nm(nodeBuilder->builtDocument());
    context->addNodeModel(nm);

    return nm->root(QXmlNodeModelIndex());
}

void DocumentConstructor::evaluateToSequenceReceiver(const DynamicContext::Ptr &context) const
{
    QAbstractXmlReceiver *const receiver = context->outputReceiver();

    DocumentContentValidator validator(receiver, context, ConstPtr(this));

    const DynamicContext::Ptr receiverContext(context->createReceiverContext(&validator));

    validator.startDocument();
    m_operand->evaluateToSequenceReceiver(receiverContext);
    validator.endDocument();
}

Expression::Ptr DocumentConstructor::typeCheck(const StaticContext::Ptr &context,
                                               const SequenceType::Ptr &reqType)
{
    m_staticBaseURI = context->baseURI();
    return SingleContainer::typeCheck(context, reqType);
}

SequenceType::Ptr DocumentConstructor::staticType() const
{
    return CommonSequenceTypes::ExactlyOneDocumentNode;
}

SequenceType::List DocumentConstructor::expectedOperandTypes() const
{
    SequenceType::List result;
    result.append(CommonSequenceTypes::ZeroOrMoreItems);
    return result;
}

Expression::Properties DocumentConstructor::properties() const
{
    return DisableElimination | IsNodeConstructor;
}

ExpressionVisitorResult::Ptr
DocumentConstructor::accept(const ExpressionVisitor::Ptr &visitor) const
{
    return visitor->visit(this);
}

QT_END_NAMESPACE