/****************************************************************************

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

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** 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 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

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** $QT_END_LICENSE$

**

****************************************************************************/

#ifndef FILEPORTER_H

#define FILEPORTER_H

#include "portingrules.h"

#include "replacetoken.h"

#include "filewriter.h"

#include "preprocessorcontrol.h"

#include <QString>

#include <QSet>

#include <QMap>

QT_BEGIN_NAMESPACE

class FilePorter

{

public:

    FilePorter(PreprocessorCache &preprocessorCache);

    void port(QString fileName);

    QSet<QByteArray> usedQtModules();

private:

    QByteArray loadFile(const QString &fileName);

    QByteArray includeAnalyse(QByteArray fileContents);

    TextReplacements includeDirectiveReplacements();

    PreprocessorCache &preprocessorCache;

    const QList<TokenReplacement*> tokenReplacementRules;

    const QHash<QByteArray, QByteArray> headerReplacements;

    ReplaceToken replaceToken;

    Tokenizer tokenizer;    //used by includeAnalyse

    QSet<QByteArray> qt4HeaderNames;

    QSet<QByteArray> m_usedQtModules;

};

class PreprocessReplace : public Rpp::RppTreeWalker

{

public:

    PreprocessReplace(const Rpp::Source *source, const QHash<QByteArray, QByteArray> &headerReplacements);

    TextReplacements getReplacements();

private:

    void evaluateIncludeDirective(const Rpp::IncludeDirective *directive);

    void evaluateText(const Rpp::Text *textLine);

    const QHash<QByteArray, QByteArray> headerReplacements;

    TextReplacements replacements;

};

class IncludeDirectiveAnalyzer : public Rpp::RppTreeWalker

{

public:

    IncludeDirectiveAnalyzer(const TokenEngine::TokenContainer &fileContents);

    int insertPos();

    QSet<QByteArray> includedHeaders();

    QSet<QByteArray> usedClasses();

private:

    void evaluateIncludeDirective(const Rpp::IncludeDirective *directive);

    void evaluateIfSection(const Rpp::IfSection *ifSection);

    void evaluateText(const Rpp::Text *textLine);

    int insertTokenIndex;

    bool foundInsertPos;

    bool foundQtHeader;

    int ifSectionCount;

    const TokenEngine::TokenContainer &fileContents;

    Rpp::Source *source;

    TypedPool<Rpp::Item> mempool;

    QSet<QByteArray> m_includedHeaders;

    QSet<QByteArray> m_usedClasses;

};

QT_END_NAMESPACE

#endif