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//
// aegis - project change supervisor
// Copyright (C) 2008 Peter Miller
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or (at
// your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program. If not, see <http://www.gnu.org/licenses/>.
//

#ifndef LIBAEGIS_META_CONTEXT_H
#define LIBAEGIS_META_CONTEXT_H

#include <common/nstring.h>

class sub_context_ty; // forward

class meta_context
{
public:
    virtual ~meta_context();

    meta_context();

    virtual void integer(long n) = 0;

    virtual void real(double n) = 0;

    virtual void string(const nstring &s) = 0;

    virtual void enumeration(const nstring &s) = 0;

    virtual void list() = 0;

    virtual void list_end() = 0;

    virtual void field(const nstring &name) = 0;

    virtual void field_end() = 0;

    virtual void end() = 0;

protected:
    void error(sub_context_ty *scp, const char *text);

private:
    meta_context(const meta_context &);

    meta_context &operator=(const meta_context &);
};

#endif // LIBAEGIS_META_CONTEXT_H