TupleResult

A micro library that easily converts c-style tuple result into Swift.Result

In some cases, the result of the completion handler is returned in the form of response and error tuple. In Swift5 and later, Swift.Result makes writing code more intuitive. Using TupleResult, you can easily change the tuple result type to Swift.Result type.

Completion handler with response and error tuple

// Example

public func executeMethod(completion: (Response?, Error?) -> Void) {
    // when failure
    completion((nil, myError))

    // when success
    completion((myResponse, nil))
}

? Before

import OtherModule

executeMethod { response, error in
    if let error = error {
        // handle failure
        return
    }

    guard let response = response else { return }

    // handle success
}

? After

import TupleResult
import OtherModule

executeMethod {
    switch Result(success: $0, failure: $1) {
    case .success:
        // handle success(let success):
    case .failure(let failure):
        // handle failure
    }
}

? Installation

Swift Package Manager

  1. In Xcode, open your project and navigate to File → Swift Packages → Add Package Dependency…
  2. Paste the repository URL (https://github.com/cozzin/TupleResult.git) and click Next.
  3. For Rules, select Branch (with branch set to master).
  4. Click Finish.

GitHub

View Github