i'm trying to make this code work
{ (tableview, originalItems, item, indexPath) in
guard let matchingItem = originalItems.filter({ matching($0, with: item.itemIdentifier) }).first else {
LogManager.Fatal.log("No item matching identifier : \(item.itemIdentifier)")
return nil
}
Some code
}
originalItems is [Any] and my function is
static func matching<T: SectionRowRepresentable>(_ item: T, with identifier: String) -> Bool where T.Identity == AnyItemRepresentable.Identity
How can I infer T from Any knowing the fact that SectionRowRepresentable has an associatedType Identity
public protocol SectionRowRepresentable: Equatable {
associatedtype Identity: Hashable
var itemIdentifier: String { get }
}
I've ended up doing like this
static func filter<T: SectionRowRepresentable>(_ items: [Any], match identifier: String) -> T? where T.Identity == AnyItemRepresentable.Identity {
return items
.flatMap { $0 as? T }
.filter { $0.identity == identifier }
.first
}
static func tableviewCellFactory() -> TableViewCellFactoryBlock {
return { (tableview, originalItems, item, indexPath) in
if let movieItem = filter(originalItems, match: item.itemIdentifier) as MovieItem? {
let adapter = TitleLabelViewAdapter(mapping: movieItem.identifier, title: movieItem.title)
let factory = TableViewCellFactory<TitleLabelView>(identifier: movieItem.identifier,
reuseIdentifier: TitleLabelView.ReuseIdentifier,
adapter: adapter)
return AnyTableViewCellFactory(factory)
} else if let adItem = filter(originalItems, match: item.itemIdentifier) as NativeAdItem? {
let reuseIdentifier = "\(TopImageBottomTitleLabelView.ReuseIdentifier) \(adItem.identifier)"
let adapter = TopImageBottomTitleLabelViewAdapter(mapping: adItem.identifier, title: adItem.title)
let factory = TableViewCellFactory<TopImageBottomTitleLabelView>(identifier: adItem.identifier,
reuseIdentifier: reuseIdentifier,
adapter: adapter)
return AnyTableViewCellFactory(factory)
}
LogManager.Fatal.log("No item matching identifier : \(item.itemIdentifier)")
return nil
}
}
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