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Diffstat (limited to 'src/xmlpatterns/expr/qarithmeticexpression_p.h')
| -rw-r--r-- | src/xmlpatterns/expr/qarithmeticexpression_p.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/src/xmlpatterns/expr/qarithmeticexpression_p.h b/src/xmlpatterns/expr/qarithmeticexpression_p.h new file mode 100644 index 0000000..a1621f7 --- /dev/null +++ b/src/xmlpatterns/expr/qarithmeticexpression_p.h @@ -0,0 +1,133 @@ +/**************************************************************************** +** +** 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. + +#ifndef Patternist_ArithmeticExpression_H +#define Patternist_ArithmeticExpression_H + +#include "qatomicmathematician_p.h" +#include "qpaircontainer_p.h" + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +namespace QPatternist +{ + /** + * @short Implements arithmetics, such as multiplication and subtraction. + * + * + * Optimizations: there's some operator/value combos that are no ops. For + * instance, 0 + <value>, which is the case of unary plus. We can't compile + * those away early due to that type checks needs to be done but one can + * check for them in compress(). + * + * @see <a href="http://www.w3.org/TR/xpath20/#id-arithmetic">XML Path Language + * (XPath) 2.0, 3.4 Arithmetic Expressions</a> + * @author Frans Englich <frans.englich@nokia.com> + * @ingroup Patternist_expressions + */ + class Q_AUTOTEST_EXPORT ArithmeticExpression : public PairContainer + { + public: + ArithmeticExpression(const Expression::Ptr &operand1, + const AtomicMathematician::Operator op, + const Expression::Ptr &operand2); + + virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const; + + virtual SequenceType::Ptr staticType() const; + virtual SequenceType::List expectedOperandTypes() const; + AtomicMathematician::Operator operatorID() const; + + virtual Expression::Ptr typeCheck(const StaticContext::Ptr &context, + const SequenceType::Ptr &reqType); + + static Item flexiblyCalculate(const Item &op1, + const AtomicMathematician::Operator op, + const Item &op2, + const AtomicMathematician::Ptr &mather, + const DynamicContext::Ptr &context, + const SourceLocationReflection *const reflection, + const ReportContext::ErrorCode code = ReportContext::XPTY0004, + const bool isCompat = false); + + static AtomicMathematician::Ptr + fetchMathematician(Expression::Ptr &t1, + Expression::Ptr &t2, + const AtomicMathematician::Operator op, + const bool issueError, + const ReportContext::Ptr &context, + const SourceLocationReflection *const reflection, + const ReportContext::ErrorCode code = ReportContext::XPTY0004, + const bool isCompat = false); + virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const; + + protected: + + private: + const AtomicMathematician::Operator m_op; + AtomicMathematician::Ptr m_mather; + bool m_isCompat; + }; + + inline AtomicMathematician::Operator ArithmeticExpression::operatorID() const + { + return m_op; + } + +} + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif |