/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
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** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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** use the contact form at http://qt.digia.com/contact-us.
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** 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
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****************************************************************************/

#ifndef CPLUSPLUS_FASTPREPROCESSOR_H
#define CPLUSPLUS_FASTPREPROCESSOR_H

#include "PreprocessorClient.h"
#include "CppDocument.h"
#include "pp.h"

#include <cplusplus/Control.h>

#include <QSet>
#include <QString>

namespace CPlusPlus {

class CPLUSPLUS_EXPORT FastPreprocessor: public Client
{
    Environment _env;
    Snapshot _snapshot;
    Preprocessor _preproc;
    QSet<QString> _merged;
    Document::Ptr _currentDoc;

    void mergeEnvironment(const QString &fileName);

public:
    FastPreprocessor(const Snapshot &snapshot);

    QByteArray run(Document::Ptr newDoc, const QByteArray &source);

    // CPlusPlus::Client
    virtual void sourceNeeded(unsigned line, const QString &fileName, IncludeType mode);

    virtual void macroAdded(const Macro &);

    virtual void passedMacroDefinitionCheck(unsigned, unsigned, const Macro &);
    virtual void failedMacroDefinitionCheck(unsigned, const ByteArrayRef &);

    virtual void notifyMacroReference(unsigned, unsigned, const Macro &);

    virtual void startExpandingMacro(unsigned,
                                     unsigned,
                                     const Macro &,
                                     const QVector<MacroArgumentReference> &);
    virtual void stopExpandingMacro(unsigned, const Macro &) {}
    virtual void markAsIncludeGuard(const QByteArray &) {}

    virtual void startSkippingBlocks(unsigned) {}
    virtual void stopSkippingBlocks(unsigned) {}
};

} // namespace CPlusPlus

#endif // CPLUSPLUS_FASTPREPROCESSOR_H
