1 /****************************************************************************
3 ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/
6 ** This file is part of the QtXmlPatterns module of the Qt Toolkit.
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** GNU Lesser General Public License Usage
10 ** This file may be used under the terms of the GNU Lesser General Public
11 ** License version 2.1 as published by the Free Software Foundation and
12 ** appearing in the file LICENSE.LGPL included in the packaging of this
13 ** file. Please review the following information to ensure the GNU Lesser
14 ** General Public License version 2.1 requirements will be met:
15 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
17 ** In addition, as a special exception, Nokia gives you certain additional
18 ** rights. These rights are described in the Nokia Qt LGPL Exception
19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
21 ** GNU General Public License Usage
22 ** Alternatively, this file may be used under the terms of the GNU General
23 ** Public License version 3.0 as published by the Free Software Foundation
24 ** and appearing in the file LICENSE.GPL included in the packaging of this
25 ** file. Please review the following information to ensure the GNU General
26 ** Public License version 3.0 requirements will be met:
27 ** http://www.gnu.org/copyleft/gpl.html.
30 ** Alternatively, this file may be used in accordance with the terms and
31 ** conditions contained in a signed written agreement between you and Nokia.
40 ****************************************************************************/
42 #include "qcommonsequencetypes_p.h"
43 #include "qgenericsequencetype_p.h"
44 #include "qitemmappingiterator_p.h"
46 #include "qquantifiedexpression_p.h"
50 using namespace QPatternist;
52 QuantifiedExpression::QuantifiedExpression(const VariableSlotID varSlot,
53 const Operator quantifier,
54 const Expression::Ptr &inClause,
55 const Expression::Ptr &testExpression)
56 : PairContainer(inClause, testExpression),
58 m_quantifier(quantifier)
60 Q_ASSERT(quantifier == Some || quantifier == Every);
63 Item QuantifiedExpression::mapToItem(const Item &item,
64 const DynamicContext::Ptr &context) const
66 context->setRangeVariable(m_varSlot, item);
70 bool QuantifiedExpression::evaluateEBV(const DynamicContext::Ptr &context) const
72 const Item::Iterator::Ptr it(makeItemMappingIterator<Item>(ConstPtr(this),
73 m_operand1->evaluateSequence(context),
76 Item item(it->next());
78 if(m_quantifier == Some)
82 if(m_operand2->evaluateEBV(context))
92 Q_ASSERT(m_quantifier == Every);
96 if(m_operand2->evaluateEBV(context))
106 QString QuantifiedExpression::displayName(const Operator quantifier)
108 if(quantifier == Some)
109 return QLatin1String("some");
112 Q_ASSERT(quantifier == Every);
113 return QLatin1String("every");
117 SequenceType::Ptr QuantifiedExpression::staticType() const
119 return CommonSequenceTypes::ExactlyOneBoolean;
122 SequenceType::List QuantifiedExpression::expectedOperandTypes() const
124 SequenceType::List result;
125 result.append(CommonSequenceTypes::ZeroOrMoreItems);
126 result.append(CommonSequenceTypes::EBV);
130 QuantifiedExpression::Operator QuantifiedExpression::operatorID() const
135 ExpressionVisitorResult::Ptr QuantifiedExpression::accept(const ExpressionVisitor::Ptr &visitor) const
137 return visitor->visit(this);