Method SlSaveLoad

src/saveload/saveload.cpp:1389–1439

* Internal templated helper to save/load a list-like type. * @param storage The storage being manipulated. * @param conv VarType type of variable that is used for calculating the size. * @param cmd The SaveLoadType ware are saving/loading. */

	 * @param cmd The SaveLoadType ware are saving/loading.
	 */
	static void SlSaveLoad(void *storage, VarType conv, SaveLoadType cmd = SL_VAR)
	{
		assert(cmd == SL_VAR || cmd == SL_REF || cmd == SL_STDSTR);

		SlStorageT *list = static_cast<SlStorageT *>(storage);

		switch (_sl.action) {
			case SLA_SAVE:
				SlWriteArrayLength(list->size());

				for (auto &item : *list) {
					SlSaveLoadMember(cmd, &item, conv);
				}
				break;

			case SLA_LOAD_CHECK:
			case SLA_LOAD: {
				size_t length;
				switch (cmd) {
					case SL_VAR: length = IsSavegameVersionBefore(SLV_SAVELOAD_LIST_LENGTH) ? SlReadUint32() : SlReadArrayLength(); break;
					case SL_REF: length = IsSavegameVersionBefore(SLV_69) ? SlReadUint16() : IsSavegameVersionBefore(SLV_SAVELOAD_LIST_LENGTH) ? SlReadUint32() : SlReadArrayLength(); break;
					case SL_STDSTR: length = SlReadArrayLength(); break;
					default: NOT_REACHED();
				}

				list->clear();
				if constexpr (std::is_same_v<SlStorageT, std::vector<Tvar, Tallocator>>) {
					list->reserve(length);
				}

				/* Load each value and push to the end of the storage. */
				for (size_t i = 0; i < length; i++) {
					Tvar &data = list->emplace_back();
					SlSaveLoadMember(cmd, &data, conv);
				}
				break;
			}

			case SLA_PTRS:
				for (auto &item : *list) {
					SlSaveLoadMember(cmd, &item, conv);
				}
				break;

			case SLA_NULL:
				list->clear();
				break;

			default: NOT_REACHED();
		}
	}
};

/**