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** This file is part of the QtDeclarative module of the Qt Toolkit.

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** this package.

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** General Public License version 2.1 as published by the Free Software

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

#ifndef QDECLARATIVEJSENGINE_P_H

#define QDECLARATIVEJSENGINE_P_H

//

//  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.

//

#include "private/qdeclarativejsglobal_p.h"

#include "private/qdeclarativejsastfwd_p.h"

#include <QString>

#include <QSet>

QT_QML_BEGIN_NAMESPACE

namespace QDeclarativeJS {

class QML_PARSER_EXPORT NameId

{

    QString _text;

public:

    NameId(const QChar *u, int s)

        : _text(u, s)

    { }

    const QString asString() const

    { return _text; }

    bool operator == (const NameId &other) const

    { return _text == other._text; }

    bool operator != (const NameId &other) const

    { return _text != other._text; }

    bool operator < (const NameId &other) const

    { return _text < other._text; }

};

uint qHash(const QDeclarativeJS::NameId &id);

} // end of namespace QDeclarativeJS

#if defined(Q_CC_MSVC) && _MSC_VER <= 1300

//this ensures that code outside QDeclarativeJS can use the hash function

//it also a workaround for some compilers

inline uint qHash(const QDeclarativeJS::NameId &nameId) { return QDeclarativeJS::qHash(nameId); }

#endif

namespace QDeclarativeJS {

class Lexer;

class NodePool;

namespace Ecma {

class QML_PARSER_EXPORT RegExp

{

public:

    enum RegExpFlag {

        Global     = 0x01,

        IgnoreCase = 0x02,

        Multiline  = 0x04

    };

public:

    static int flagFromChar(const QChar &);

    static QString flagsToString(int flags);

};

} // end of namespace Ecma

class QML_PARSER_EXPORT DiagnosticMessage

{

public:

    enum Kind { Warning, Error };

    DiagnosticMessage()

        : kind(Error) {}

    DiagnosticMessage(Kind kind, const AST::SourceLocation &loc, const QString &message)

        : kind(kind), loc(loc), message(message) {}

    bool isWarning() const

    { return kind == Warning; }

    bool isError() const

    { return kind == Error; }

    Kind kind;

    AST::SourceLocation loc;

    QString message;

};

class QML_PARSER_EXPORT Engine

{

    Lexer *_lexer;

    NodePool *_nodePool;

    QSet<NameId> _literals;

    QList<QDeclarativeJS::AST::SourceLocation> _comments;

public:

    Engine();

    ~Engine();

    QSet<NameId> literals() const;

    void addComment(int pos, int len, int line, int col);

    QList<QDeclarativeJS::AST::SourceLocation> comments() const;

    NameId *intern(const QChar *u, int s);

    static QString toString(NameId *id);

    Lexer *lexer() const;

    void setLexer(Lexer *lexer);

    NodePool *nodePool() const;

    void setNodePool(NodePool *nodePool);

};

} // end of namespace QDeclarativeJS

QT_QML_END_NAMESPACE

#endif // QDECLARATIVEJSENGINE_P_H