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/*
* Copyright (C) 2006-2010 by the Widelands Development Team
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "scripting/report_error.h"
#include <cassert>
#include "base/wexception.h"
#include "scripting/lua_errors.h"
/*
* Returns an error to lua. This method never returns as lua_error long jumps.
*/
void report_error(lua_State* L, const char* const fmt, ...) {
char buffer[2048];
va_list va;
va_start(va, fmt);
vsnprintf(buffer, sizeof(buffer), fmt, va);
va_end(va);
// Also create a traceback
lua_getglobal(L, "debug");
assert(lua_istable(L, -1));
lua_getfield(L, -1, "traceback");
assert(lua_isfunction(L, -1));
lua_pushstring(L, buffer); // error message
lua_pushinteger(L, 2); /* skip this function and traceback */
lua_call(L, 2, 1); /* call debug.traceback */
lua_error(L); // lua_error never returns.
NEVER_HERE();
}
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