/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** 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.
**
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** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QQMLJSENGINE_P_H
#define QQMLJSENGINE_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 "qqmljsglobal_p.h"
#include "qqmljsastfwd_p.h"
#include "qqmljsmemorypool_p.h"

#include <qstring.h>
#include <qset.h>

QT_QML_BEGIN_NAMESPACE

namespace QQmlJS {

class Lexer;
class MemoryPool;

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;
    MemoryPool _pool;
    QList<AST::SourceLocation> _comments;
    QString _extraCode;
    QString _code;

public:
    Engine();
    ~Engine();

    void setCode(const QString &code);

    void addComment(int pos, int len, int line, int col);
    QList<AST::SourceLocation> comments() const;

    Lexer *lexer() const;
    void setLexer(Lexer *lexer);

    MemoryPool *pool();

    inline QStringRef midRef(int position, int size) { return _code.midRef(position, size); }

    QStringRef newStringRef(const QString &s);
    QStringRef newStringRef(const QChar *chars, int size);
};

double integerFromString(const char *buf, int size, int radix);

} // end of namespace QQmlJS

QT_QML_END_NAMESPACE

#endif // QQMLJSENGINE_P_H