Swiftpack.co - Package - harrytwright/CodableCollection


Codable is a selection of type-safe Collections to keep you safe.

Limitations With Swift.Codable

Let say you're an Analytics SDK platform, and you have a userInfo parameter where you don't know the keys and objects to be entered as a end developer enters them, so your Struct will look like this:

struct Event: Codable {
    var name: String
    var userInfo: [String: Any]

However, you will be hit with "cannot automatically synthesize 'Decodable' because '[String : Any]' does not conform to 'Decodable'", this is because the complier cannot know what the Any object will be, it could be something that does not conform to Codable.

With CodableCollection all you need to do is:

struct Event: Codable {
    var name: String
    var userInfo: UnkeyedCodableDictionary<AnyCodable>

Mocking up with an event will produce:

AnalyticsSDK.logEvent("SignUp", userInfo: ["user":"qwertyuiop", "email":"abc@xyz.com"])

// ▿ __lldb_expr_7.Event
//   - name: "SignUp"
//   ▿ userInfo: ["user": AnyCodable(qwertyuiop), "email": AnyCodable(abc@xyz.com)]
//     ▿ _base: ["user": AnyCodable(qwertyuiop), "email": AnyCodable(abc@xyz.com)]
//       ▿ _base: 2 key/value pairs
//         ▿ (2 elements)
//           ▿ key: user
//             - stringValue: "user"
//             - intValue: nil
//           ▿ value: AnyCodable(qwertyuiop)
//             - value: "qwertyuiop"
//         ▿ (2 elements)
//           ▿ key: email
//             - stringValue: "email"
//             - intValue: nil
//           ▿ value: AnyCodable(abc@xyz.com)
//             - value: "abc@xyz.com"


  • iOS
  • Xcode 9.0+
  • Swift 4.0


NOTE: Currently we only support Swift Package Manager

Swift Package Manager

The Swift Package Manager is a tool for automating the distribution of Swift code and is integrated into the swift compiler.

Once you have your Swift package set up, adding Codable as a dependency is as easy as adding it to the dependencies value of your Package.swift.

dependencies: [
    .package(url: "https://github.com/harrytwright/CodableCollection.git", from: "0.3.0")


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Used By



0.3.0 - Dec 11, 2017

0.2.0 - Nov 9, 2017