问RxDataSource:在TableViewCell中嵌套CollectionView

EN

enum ItemDetailTableViewItem {
    case itemInfoTopItem(info: ItemDetailViewModelPlus)
    case itemHintItem(hint: ItemDetailViewModelPlus)
    case itemManaColdownItem(manacd: ItemDetailViewModelPlus)
    case itemNotesItem(notes: ItemDetailViewModelPlus)
    case itemAttribItem(attrib: ItemDetailViewModelPlus)
    case itemLoreItem(lore: ItemDetailViewModelPlus)
    case itemComponentsItem(components: ItemDetailViewModelPlus)
}

enum ItemDetailTableViewSection {
    case infoSection(items: [ItemDetailTableViewItem])
    case hintSection(items: [ItemDetailTableViewItem])
    case manacdSection(items: [ItemDetailTableViewItem])
    case notesSection(items: [ItemDetailTableViewItem])
    case attribSection(items: [ItemDetailTableViewItem])
    case loreSection(items: [ItemDetailTableViewItem])
    case componentsSection(items: [ItemDetailTableViewItem])
}

extension ItemDetailTableViewSection: SectionModelType {
    typealias Item = ItemDetailTableViewItem
    
    var items: [ItemDetailTableViewItem] {
        switch self {
        case .infoSection(items: let items):
            return items
        case .hintSection(items: let items):
            return items
        case .manacdSection(items: let items):
            return items
        case .notesSection(items: let items):
            return items
        case .attribSection(items: let items):
            return items
        case .loreSection(items: let items):
            return items
        case .componentsSection(items: let items):
            return items
        }
    }
    
    init(original: ItemDetailTableViewSection, items: [Self.Item]) {
        self = original
    }
}

struct ItemDetailDataSource {
    typealias DataSource = RxTableViewSectionedReloadDataSource
    
    static func dataSource() -> DataSource<ItemDetailTableViewSection> {
        return .init { (dataSource, tableView, indexPath, item) -> UITableViewCell in
            
            switch dataSource[indexPath] {
            case .itemInfoTopItem(let info):
            case .itemHintItem(let hint):
            case .itemManaColdownItem(let manacd):
            case .itemNotesItem(let notes):
            case.itemAttribItem(let attrib):
            case .itemLoreItem(let lore):
            case .itemComponentsItem(let components):
                guard let cell = tableView
                        .dequeueReusableCell(withIdentifier: ConstantsForCell.itemComponentTableViewCell,
                                                               for: indexPath)
                        as? ItemComponentTableViewCell else {
                    return UITableViewCell()
                }
                cell.registerCell()
                cell.configure(components)
                return cell
            }
        }
    }
}

class ItemComponentTableViewCell: UITableViewCell {
    @IBOutlet weak var itemComponentCollectionView: UICollectionView!
    
    var components = BehaviorSubject<[String]>(value: [])
    let disposeBag = DisposeBag()
    
    override func awakeFromNib() {
        super.awakeFromNib()
        
    }
    
    override func setSelected(_ selected: Bool, animated: Bool) {
        super.setSelected(selected, animated: animated)

        // Configure the view for the selected state
    }
    
    func registerCell() {
        itemComponentCollectionView.register(UINib(nibName: "ComponentCollectionViewCell",
                                                   bundle: nil),
                                             forCellWithReuseIdentifier: "ComponentCollectionViewCell")
    }
    
    func configure(_ viewModel: ItemDetailViewModelPlus) {
        components.onNext(viewModel.components)
        components
            .bind(to: itemComponentCollectionView
                    .rx
                    .items(cellIdentifier: "ComponentCollectionViewCell",
                           cellType: ComponentCollectionViewCell.self)) { _, element, cell in
                cell.configure(element)
            }
            .disposed(by: disposeBag)
    }
}