Function SlError

src/saveload/saveload.cpp:339–360

* Error handler. Sets everything up to show an error message and to clean * up the mess of a partial savegame load. * @param string The translatable error message to show. * @param extra_msg An extra error message coming from one of the APIs. * @note This function does never return as it throws an exception to * break out of all the saveload code. */

 *       break out of all the saveload code.
 */
[[noreturn]] void SlError(StringID string, const std::string &extra_msg)
{
	/* Distinguish between loading into _load_check_data vs. normal save/load. */
	if (_sl.action == SLA_LOAD_CHECK) {
		_load_check_data.error = string;
		_load_check_data.error_msg = extra_msg;
	} else {
		_sl.error_str = string;
		_sl.extra_msg = extra_msg;
	}

	/* We have to nullptr all pointers here; we might be in a state where
	 * the pointers are actually filled with indices, which means that
	 * when we access them during cleaning the pool dereferences of
	 * those indices will be made with segmentation faults as result. */
	if (_sl.action == SLA_LOAD || _sl.action == SLA_PTRS) SlNullPointers();

	/* Logging could be active. */
	_gamelog.StopAnyAction();

	throw std::exception();
}

/**
 * Error handler for corrupt savegames. Sets everything up to show the