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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the qt3to4 porting application 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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef RPPTREEEVALUATOR_H
#define RPPTREEEVALUATOR_H
#include "tokenengine.h"
#include "rpp.h"
#include "rpptreewalker.h"
#include <QObject>
#include <QList>
#include <QHash>
#include <QSet>
QT_BEGIN_NAMESPACE
namespace Rpp {
class DefineMap : public QHash<QByteArray, const DefineDirective *>
{
};
class RppTreeEvaluator: public QObject, public RppTreeWalker
{
Q_OBJECT
public:
RppTreeEvaluator();
~RppTreeEvaluator();
TokenEngine::TokenSectionSequence evaluate(const Source *source,
DefineMap *activedefinitions);
enum IncludeType {QuoteInclude, AngleBracketInclude};
signals:
void includeCallback(Rpp::Source *&includee,
const Rpp::Source *includer,
const QString &filename,
Rpp::RppTreeEvaluator::IncludeType includeType);
protected:
void evaluateIncludeDirective(const IncludeDirective *directive);
void evaluateDefineDirective(const DefineDirective *directive);
void evaluateUndefDirective(const UndefDirective *directive);
void evaluateIfSection(const IfSection *ifSection);
void evaluateText(const Text *text);
bool evaluateCondition(const ConditionalDirective *conditionalDirective);
int evaluateExpression(Expression *expression);
TokenEngine::TokenContainer evaluateMacro(TokenEngine::TokenContainer tokenContainer, int &identiferTokenIndex);
TokenEngine::TokenContainer evaluateMacroInternal(QSet<QByteArray> skip, TokenEngine::TokenContainer tokenContainer);
TokenEngine::TokenContainer cloneTokenList(const TokenEngine::TokenList &list);
Source *getParentSource(const Item *item) const;
IncludeType includeTypeFromDirective(
const IncludeDirective *includeDirective) const;
private:
QVector<TokenEngine::TokenSection> m_tokenSections;
DefineMap *m_activeDefinitions;
TokenEngine::TokenSection *newlineSection;
};
class MacroFunctionParser
{
public:
MacroFunctionParser(const TokenEngine::TokenContainer &tokenContainer, int startToken);
bool isValid();
int tokenCount();
int argumentCount();
TokenEngine::TokenSection argument(int argumentIndex);
private:
const TokenEngine::TokenContainer &m_tokenContainer;
const int m_startToken;
int m_numTokens;
bool m_valid;
QVector<TokenEngine::TokenSection> m_arguments;
};
}//namespace Rpp
QT_END_NAMESPACE
#endif
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