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About the developer

marty-suzuki
138 Stars 11 Forks MIT License 13 Commits 0 Opened issues

Description

📦 KeyPath dynamicMemberLookup based syntax sugar for Swift.

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# 11,197
Swift
Objecti...
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watchos
13 commits

DuctTape

CI Status Pod CarthageSwiftPM
Swift5 Platform License

📦 KeyPath dynamicMemberLookup based syntax sugar for Swift.

let label = UILabel().ductTape
    .numberOfLines(0)
    .textColor(.red)
    .text("Hello, World!!")
    .build()

Above is same as below definition.

let label: UILabel = {
    let label = UILabel()
    label.numberOfLines = 0
    label.textColor = .red
    label.text = "Hello, World!!"
    return label
}()

Usage

NSObject already has been compatible with DuctTape, so you can access

.ductTape
property like below.
let builder: Builder = UIView().ductTape

If you access

.ductTape
, it returns
Builder
that provides setter of properties via KeyPath dynamicMemberLookup.
let view: UIView = UIView().ductTape
    .backgroundColor(.red)
    .translatesAutoresizingMaskIntoConstraints(false)
    .build()

Finally, if you call

.build()
,
Builder
returns instance that has set property values.

How to access methods

If you want to access methods of object which is building,

func reinforce(_ handler: (Base) -> Void) Builder
enable to access methods.
let collectionView = UICollectionView().ductTape
    .backgroundColor(.red)
    .reinforce { collectionView in
        collectionView.register(UITableViewCell.self, forCellWithReuseIdentifier: "Cell")
    }
    .build()

Builder
has
func reinforce(_ t1: T1, ..., handler: (Base) -> Void) Builder
methods. In additional usage, be able to access outside object with
func reinforce
if passing objects as arguments.
lazy var collectionView = UICollectionView().ductTape
    .translatesAutoresizingMaskIntoConstraints(false)
    .reinforce(view) { collectionView, view in
        view.addSubview(collectionView)
        NSLayoutConstraint.activate([
            view.topAnchor.constraint(equalTo: collectionView.topAnchor),
            view.leadingAnchor.constraint(equalTo: collectionView.leadingAnchor),
            view.trailingAnchor.constraint(equalTo: collectionView.trailingAnchor),
            view.bottomAnchor.constraint(equalTo: collectionView.bottomAnchor)
        ])
    }
    .build()

How to use DuctTape with self-implemented classes

There are two ways to use DuctTape.

  1. Use DuctTapeCompatible
class Dog: DuctTapeCompatible {
    var name: String
}

let dog = Dog().ductTape .name("Copernicus") .build()

  1. Use Builder directly
class Dog {
    var name: String
}

let dog = Builder(Dog()) .name("Copernicus") .build()

Sample Code

class ViewController: UIViewController {

let flowLayout: UICollectionViewFlowLayout = UICollectionViewFlowLayout()
    .ductTape
    .minimumLineSpacing(10)
    .minimumInteritemSpacing(10)
    .itemSize(CGSize(width: 100, height: 100))
    .scrollDirection(.vertical)
    .build()

lazy var collectionView: UICollectionView = UICollectionView(frame: .zero,
                                                             collectionViewLayout: flowLayout)
    .ductTape
    .dataSource(self)
    .delegate(self)
    .translatesAutoresizingMaskIntoConstraints(false)
    .reinforce {
        $0.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "Cell")
    }
    .build()

override func viewDidLoad() {
    super.viewDidLoad()

    view.addSubview(collectionView)
    NSLayoutConstraint.activate([
        view.topAnchor.constraint(equalTo: collectionView.topAnchor),
        view.leadingAnchor.constraint(equalTo: collectionView.leadingAnchor),
        view.trailingAnchor.constraint(equalTo: collectionView.trailingAnchor),
        view.bottomAnchor.constraint(equalTo: collectionView.bottomAnchor)
    ])
}

}

Requirement

  • Xcode 11
  • macOS 10.10
  • iOS 9.0
  • tvOS 10.0
  • watchOS 3.0

Installation

CocoaPods

DuctTape is available through CocoaPods. To install it, simply add the following line to your

Podfile
:
pod "DuctTape"

Carthage

If you’re using Carthage, simply add DuctTape to your

Cartfile
:
github "marty-suzuki/DuctTape"

Swift Package Manager

Simply add the following line to your

Package.swift
:
.package(url: "https://github.com/marty-suzuki/DuctTape.git", from: "version")

License

DuctTape is released under the MIT License.

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