| /**************************************************************************** |
| ** |
| ** Copyright (C) 2011 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. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** GNU Lesser General Public License Usage |
| ** 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. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU General |
| ** Public License version 3.0 as published by the Free Software Foundation |
| ** and appearing in the file LICENSE.GPL included in the packaging of this |
| ** file. Please review the following information to ensure the GNU General |
| ** Public License version 3.0 requirements will be met: |
| ** http://www.gnu.org/copyleft/gpl.html. |
| ** |
| ** Other Usage |
| ** Alternatively, this file may be used in accordance with the terms and |
| ** conditions contained in a signed written agreement between you and Nokia. |
| ** |
| ** |
| ** |
| ** |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "qboolean_p.h" |
| #include "qcommonvalues_p.h" |
| #include "qliteral_p.h" |
| |
| #include "qorexpression_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| using namespace QPatternist; |
| |
| OrExpression::OrExpression(const Expression::Ptr &operand1, |
| const Expression::Ptr &operand2) : AndExpression(operand1, operand2) |
| { |
| } |
| |
| bool OrExpression::evaluateEBV(const DynamicContext::Ptr &context) const |
| { |
| return m_operand1->evaluateEBV(context) || m_operand2->evaluateEBV(context); |
| } |
| |
| Expression::Ptr OrExpression::compress(const StaticContext::Ptr &context) |
| { |
| const Expression::Ptr newMe(PairContainer::compress(context)); |
| |
| if(newMe != this) |
| return newMe; |
| |
| /* Both operands mustn't be evaluated in order to be able to compress. */ |
| if(m_operand1->isEvaluated() && m_operand1->evaluateEBV(context->dynamicContext())) |
| return wrapLiteral(CommonValues::BooleanTrue, context, this); |
| else if(m_operand2->isEvaluated() && m_operand2->evaluateEBV(context->dynamicContext())) |
| return wrapLiteral(CommonValues::BooleanTrue, context, this); |
| else |
| return Expression::Ptr(this); |
| } |
| |
| ExpressionVisitorResult::Ptr OrExpression::accept(const ExpressionVisitor::Ptr &visitor) const |
| { |
| return visitor->visit(this); |
| } |
| |
| QT_END_NAMESPACE |