/******************************************************************************** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).** All rights reserved.** 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 Technology Preview License Agreement accompanying** this package.**** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.**** If you have questions regarding the use of this file, please contact** Nokia at qt-info@nokia.com.****************** $QT_END_LICENSE$******************************************************************************/#include "qcommonsequencetypes_p.h"#include "qgenericsequencetype_p.h"#include "qitemmappingiterator_p.h"#include "qquantifiedexpression_p.h"QT_BEGIN_NAMESPACEusing namespace QPatternist;QuantifiedExpression::QuantifiedExpression(const VariableSlotID varSlot, const Operator quantifier, const Expression::Ptr &inClause, const Expression::Ptr &testExpression) : PairContainer(inClause, testExpression), m_varSlot(varSlot), m_quantifier(quantifier){ Q_ASSERT(quantifier == Some || quantifier == Every);}Item QuantifiedExpression::mapToItem(const Item &item, const DynamicContext::Ptr &context) const{ context->setRangeVariable(m_varSlot, item); return item;}bool QuantifiedExpression::evaluateEBV(const DynamicContext::Ptr &context) const{ const Item::Iterator::Ptr it(makeItemMappingIterator<Item>(ConstPtr(this), m_operand1->evaluateSequence(context), context)); Item item(it->next()); if(m_quantifier == Some) { while(item) { if(m_operand2->evaluateEBV(context)) return true; else item = it->next(); }; return false; } else { Q_ASSERT(m_quantifier == Every); while(item) { if(m_operand2->evaluateEBV(context)) item = it->next(); else return false; } return true; }}QString QuantifiedExpression::displayName(const Operator quantifier){ if(quantifier == Some) return QLatin1String("some"); else { Q_ASSERT(quantifier == Every); return QLatin1String("every"); }}SequenceType::Ptr QuantifiedExpression::staticType() const{ return CommonSequenceTypes::ExactlyOneBoolean;}SequenceType::List QuantifiedExpression::expectedOperandTypes() const{ SequenceType::List result; result.append(CommonSequenceTypes::ZeroOrMoreItems); result.append(CommonSequenceTypes::EBV); return result;}QuantifiedExpression::Operator QuantifiedExpression::operatorID() const{ return m_quantifier;}ExpressionVisitorResult::Ptr QuantifiedExpression::accept(const ExpressionVisitor::Ptr &visitor) const{ return visitor->visit(this);}QT_END_NAMESPACE