ChainSwift 🔗

ChainSwift is an extension that provides chainable way of setting properties in swift.

Why?

You can do this:

let titleLabel = UILabel().set
  .text("Welcome")
  .font(.systemFont(ofSize: 20))
  .textAlignment(.center)
  .get

Instead of this:

let titleLabel = UILabel()
titleLabel.text = "Welcome"
titleLabel.font = .systemFont(ofSize: 20)
titleLabel.textAlignment = .center

Usage

After installing add these lines to anywhere in your code:

import Foundation
import ChainSwift

extension NSObject: Chainable { } /// covers anything inheriting NSObject like UIView

Examples

Consider following class

class MyClass {
  var text = ""
  var int = 0
  var myEnum: MyEnum = .value1
}

After adding this single line:

extension MyClass: Chainable { }

You will be able to do:

let myClass = MyClass()

myClass.set
  .text("It works")
  .int(99)
  .myEnum(.value2)

print(myClass.text) // "It works"
print(myClass.int) // 99
print(myClass.myEnum) // .value2

/// immediate usage
let myClass = MyClass().set
  .text("It works")
  .int(99)
  .myEnum(.value2)
  .get // gains the instance back

How it works?

It combines Swift's Key Path Member Lookup and func callAsFunction features to achive this.

Other works

• LayoutSwift - Yet another Swift Autolayout DSL for iOS.
• SwiftUIRouter - An experimental navigation router for SwiftUI.

Installation

Swift Package Manager

Note: Instructions below are for using SwiftPM without the Xcode UI. It's the easiest to go to your Project Settings -> Swift Packages and add ChainSwift from there.

To integrate using Apple's Swift Package Manager , without Xcode integration, add the following as a dependency to your Package.swift:

dependencies: [
  .package(url: "https://github.com/OrkhanAlikhanov/ChainSwift.git", .upToNextMajor(from: "1.0.1"))
]

and then specify "ChainSwift" as a dependency of the Target in which you wish to use ChainSwift.

Manually

Just drag and drop the files in the Sources folder.

Authors

• Orkhan Alikhanov - Initial work - OrkhanAlikhanov

See also the list of contributors who participated in this project.

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License

This project is licensed under the MIT License - see the LICENSE file for details