Function assignKeyValue

packages/firebase-firestore/index.ios.ts:150–160

(key, val)

	const data = NSMutableDictionary.alloc().init();

	const assignKeyValue = (key, val) => {
		// check the map for weak object
		if (typeof key === 'string' && key.includes('FIRFieldPath')) {
			const ref = fp_refs.get(key)?.get?.();
			if (ref) {
				data.setObjectForKey(serializeItems(val), ref);
				return;
			}
		}
		data.setObjectForKey(serializeItems(val), key instanceof FieldPath ? key.native : key);
	};
	if (!fieldPathValue && !moreFieldsAndValues) {
		Object.entries(dataOrField).forEach((item) => assignKeyValue(item[0], item[1]));
	} else {