ObjFW  Diff

	self = [self init];

	@try {
		void *pool = objc_autoreleasePoolPush();

		if ((![element.name isEqual: @"OFSet"] &&
		    ![element.name isEqual: @"OFMutableSet"]) ||
		    ![element.namespace isEqual: OF_SERIALIZATION_NS])
			@throw [OFInvalidArgumentException exception];

		for (OFXMLElement *child in
		    [element elementsForNamespace: OF_SERIALIZATION_NS]) {
			void *pool2  = objc_autoreleasePoolPush();

			[_mapTable setObject: (void *)1
				      forKey: [child objectByDeserializing]];

			objc_autoreleasePoolPop(pool2);
		}