ConfiguringInitializer

Write configuration code for most objects in Swift in a closure on the initializer.

Example Usage

// create and configure
// any NSObject-derived object
// very simply with a clean syntax
// (and code-completion even works)
let df = DateFormatter() {
    $0.dateStyle = .short
    $0.timeStyle = .long
}

// and you can write very clean configuration code in classes this way
final class Dummy {
        
    var someValue : String?
    
    static let dateFormatter = DateFormatter() {
        $0.dateFormat = "yyyy-MM-dd HH:mm"
        $0.timeZone = TimeZone(secondsFromGMT: 0)
    }
}

// it's easy enough to add conformance to most other classes
// NOTE: the class must be declared final for this to work
extension Dummy : ConfiguringInitializer {}

let dummyToo = Dummy {
    $0.someValue = "Hello"
}
// yes, this example is trivial, but imagine any configuration code in here

Importing

Step 1:

Import ConfiguringInitializer into your project.

ConfiguringInitializer is available as a Swift Package at https://github.com/jaywardell/ConfiguringInitializer.
You can downlaod it or import it in XCode using File->Swift Packages->Add Package Dependency…

Step 2:

Import ConfiguringInitializer into any Swift file

import ConfiguringInitializer

Requirements

ConfiguringInitializer has only been tested against Swift 5.1 and XCode 11. It may work with some previous versions of swift.

License (of sorts)

ConfiguringInitializer is free to use or modify in any way you see fit. If you have an idea for an improvement, please submit a pull request.

Thanks:

This package was inspired by an article by John Sundell at https://www.swiftbysundell.com/articles/encapsulating-configuration-code-in-swift/

Contact:

twitter: @jaywardell