How do I create generic protocols with associated types?

Creating generic protocols with associated types in Swift allows for building flexible and reusable code. Here’s an example showcasing how to define a protocol with an associated type and implement it with a struct.

// Define a generic protocol with associated type protocol Container { associatedtype Item var items: [Item] { get } func add(item: Item) } // Implement the protocol in a struct struct StringContainer: Container { typealias Item = String var items: [String] = [] mutating func add(item: String) { items.append(item) } } // Usage var stringContainer = StringContainer() stringContainer.add(item: "Hello") stringContainer.add(item: "World") print(stringContainer.items) // Outputs: ["Hello", "World"]

generic protocols associated types Swift reusable code protocol implementation

Related Questions

How do I avoid rehashing overhead with std::set in multithreaded code?

How do I find elements with custom comparators with std::set for embedded targets?

How do I erase elements while iterating with std::set for embedded targets?

How do I provide stable iteration order with std::unordered_map for large datasets?

How do I reserve capacity ahead of time with std::unordered_map for large datasets?

How do I erase elements while iterating with std::unordered_map in multithreaded code?

How do I provide stable iteration order with std::map for embedded targets?

How do I provide stable iteration order with std::map in multithreaded code?

How do I avoid rehashing overhead with std::map in performance-sensitive code?

How do I merge two containers efficiently with std::map for embedded targets?