CODEWITHSUNDEEP
swiftuitableviewgenericsprotocolsassociated-types
Adam Smaka
Adam Smaka

Reputation: 6413

Swift - Configuring different cells the same way

Hey I got ConfigurationType protocol

protocol ConfigurationType {}

and my own cell class

class ConfigurableCell<T: ConfigurationType>: UITableViewCell {
    func configure(with config: T) {}
}

All my cells inherit from ConfigurableCell and I want to create CellModules, which my tableView would use. 

protocol CellModule {
    associatedtype Config: ConfigurationType
    associatedtype Cell: ConfigurableCell<Config>
    var config: Config { get set }
}
extension CellModule {
    init(_ config: Config) {
        self.config = config
    }
    func dequeueCell(_ tableView: UITableView) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell() as Cell
        cell.configure(with: config)
        return cell
    }
}

goal is to create module for cell like this

struct GoalTitleCellModule: CellModule {
    typealias Cell = GoalTitleCell
    var config: GoalTitleConfiguration
}

but xcode complain "Type 'GoalTitleCellModule' does not conform to protocol 'CellModule'".

enter image description here

What I'm doing wrong?

Upvotes: 0

Views: 135

Answers (1)

kiwisip
kiwisip

Reputation: 447

Making CellModule protocol visible to Objective-C and changing GoalTitleCellModule type to class will solve your problem.

Take a look here: https://bugs.swift.org/browse/SR-55

Upvotes: 1

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