Function error

libaegisub/lua/utils.cpp:184–192

}

[[noreturn]] int error(lua_State *L, const char *fmt, ...) {
	va_list argp;
	va_start(argp, fmt);
	luaL_where(L, 1);
	lua_pushvfstring(L, fmt, argp);
	va_end(argp);
	lua_concat(L, 2);
	throw error_tag();
}

[[noreturn]] int argerror(lua_State *L, int narg, const char *extramsg) {
	lua_Debug ar;