RawRepresentable and struct to get enum-like behavior that can be extended in other modules (frameworks for example).

test.swift

import UIKit

// RawRepresentable and struct to get enum-like behavior that can be extended
// in other modules (frameworks for example).
public struct Config: RawRepresentable {
	public typealias RawValue = String
	public let rawValue: RawValue

	public init(rawValue: String) {
		self.rawValue = rawValue
	}
	public static let v1 = Config(rawValue: "v1")
	public static let v2 = Config(rawValue: "v2")
}

public struct Common {
	public static func doWork(with: Config) {
		print(with.rawValue)
	}
}

// in another framework
public extension Config {
	static let v3 = Config(rawValue: "v3")
}



Common.doWork(with: .v1)
Common.doWork(with: .v2)
Common.doWork(with: .v3)


/* output:
v1
v2
v3
*/