koher / swift-id

SwiftID

Makes it easy to implement custom ID types especially when they wrap integer or string types. Custom ID types which conform to IntegerIDProtocol or StringIDProtocol are automatically conform to the following protocols.

• Hashable
• Sendable
• Identifiable
• Codable
• CustomStringConvertible
• ExpressibleByIntegerLiteral or ExpressibleByStringLiteral.

struct User: Identifiable, Sendable, Hashable, Codable {
    let id: ID
    var name: String

    // 🙂 Easy to implement!!
    struct ID: StringIDProtocol {
        let rawValue: String
        init(rawValue: String) {
            self.rawValue = rawValue
        }
    }
}

// ExpressibleByStringLiteral
let user = User(id: "abc", name: "Swift")

// CustomStringConvertible
print(user.id) // abc

// Identifiable
let ids: [User.ID] = ["abc"]
_ = ForEach(ids) { id in
    if let user = idToUser[id] {
        Text(user.name)
    }
}

License

MIT