| 1 | /****************************************************************************
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| 2 | **
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| 3 | ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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| 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation ([email protected])
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| 6 | **
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| 7 | ** This file is part of the QtXmlPatterns module of the Qt Toolkit.
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| 8 | **
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| 9 | ** $QT_BEGIN_LICENSE:LGPL$
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| 10 | ** Commercial Usage
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| 11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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| 12 | ** accordance with the Qt Commercial License Agreement provided with the
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| 13 | ** Software or, alternatively, in accordance with the terms contained in
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| 14 | ** a written agreement between you and Nokia.
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| 15 | **
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| 16 | ** GNU Lesser General Public License Usage
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| 17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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| 18 | ** General Public License version 2.1 as published by the Free Software
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| 19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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| 20 | ** packaging of this file. Please review the following information to
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| 21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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| 22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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| 23 | **
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| 24 | ** In addition, as a special exception, Nokia gives you certain additional
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| 25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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| 26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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| 27 | **
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| 28 | ** GNU General Public License Usage
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| 29 | ** Alternatively, this file may be used under the terms of the GNU
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| 30 | ** General Public License version 3.0 as published by the Free Software
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| 31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 32 | ** packaging of this file. Please review the following information to
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| 33 | ** ensure the GNU General Public License version 3.0 requirements will be
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| 34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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| 35 | **
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| 36 | ** If you have questions regarding the use of this file, please contact
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| 37 | ** Nokia at [email protected].
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| 38 | ** $QT_END_LICENSE$
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| 39 | **
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| 40 | ****************************************************************************/
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| 41 |
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| 42 | #include "qbuiltintypes_p.h"
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| 43 | #include "qcommonsequencetypes_p.h"
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| 44 | #include "qcommonvalues_p.h"
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| 45 | #include "qebvextractor_p.h"
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| 46 | #include "qitem_p.h"
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| 47 | #include "qliteral_p.h"
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| 48 | #include "qoptimizationpasses_p.h"
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| 49 | #include "quntypedatomicconverter_p.h"
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| 50 | #include "qvaluecomparison_p.h"
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| 51 |
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| 52 | #include "qgeneralcomparison_p.h"
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| 53 |
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| 54 | QT_BEGIN_NAMESPACE
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| 55 |
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| 56 | using namespace QPatternist;
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| 57 |
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| 58 | GeneralComparison::GeneralComparison(const Expression::Ptr &op1,
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| 59 | const AtomicComparator::Operator op,
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| 60 | const Expression::Ptr &op2,
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| 61 | const bool isBackwardsCompat) : PairContainer(op1, op2)
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| 62 | , m_operator(op)
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| 63 | , m_isBackwardsCompat(isBackwardsCompat)
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| 64 | {
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| 65 | }
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| 66 |
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| 67 | bool GeneralComparison::generalCompare(const Item &op1,
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| 68 | const Item &op2,
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| 69 | const DynamicContext::Ptr &context) const
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| 70 | {
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| 71 | Q_ASSERT(op1);
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| 72 | Q_ASSERT(op2);
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| 73 |
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| 74 | if(comparator())
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| 75 | return compare(op1, op2, comparator(), m_operator);
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| 76 |
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| 77 | Expression::Ptr a1(new Literal(op1));
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| 78 | Expression::Ptr a2(new Literal(op2));
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| 79 |
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| 80 | const AtomicComparator::Ptr comp(fetchGeneralComparator(a1, a2, context));
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| 81 | /* The fetchGeneralComparator call may rewrite a1 and/or a2. */
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| 82 | Q_ASSERT(a1);
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| 83 | Q_ASSERT(a2);
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| 84 | Q_ASSERT(comp);
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| 85 |
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| 86 | return compare(a1->evaluateSingleton(context),
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