lib/interpose.h

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//
// canola - canon canola 1614p emulator
// Copyright (C) 2011 Peter Miller
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License, version 3, as
// published by the Free Software Foundation.
//
// 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 LIB_INTERPOSE_H
#define LIB_INTERPOSE_H

#include <lib/ac/stdarg.h>
#include <boost/shared_ptr.hpp>

#include <lib/format_printf.h>
#include <lib/location.h>
#include <lib/opcode.h>

class interpose
{
public:
    typedef boost::shared_ptr<interpose> pointer;

    virtual ~interpose();

    virtual void on_opcode(opcode_t op, const location::pointer &where) = 0;

    virtual bool strict_memory_number_checking_required(void) const = 0;

protected:
    void on_error(const char *fmt, ...)
                                                            FORMAT_PRINTF(2, 3);

public:
    virtual void on_error_v(const char *fmt, va_list ap)
                                                        FORMAT_PRINTF(2, 0) = 0;

protected:
    interpose();

private:
    interpose(const interpose &);

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

#endif // LIB_INTERPOSE_H