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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,
                              const QStringList &initialIncludes = QStringList());

    virtual void macroAdded(const Macro &);

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

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

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

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

} // namespace CPlusPlus

#endif // CPLUSPLUS_FASTPREPROCESSOR_H