adiki

final class ThreadSafe<T> {
    private var _value: T
    private let queue = DispatchQueue(label: ThreadSafe.description())
    init(_ value: T) {
        self._value = value
    }

    var value: T {
        return queue.sync { _value }
    }

adiki

let gifsProvider: AnyObjectsProvider<GIF> = objectsManager.makeGIFsProvider()

protocol ObjectsManager {
    
    var defaultGIFPredicate: NSPredicate { get }
    
    func makeGIFsProvider() -> AnyObjectsProvider<GIF>
    func save(gifs: [GIF]) -> Completable
    func hide(gif: GIF)
    

adiki

import UIKit

typealias Constraint = (_ child: UIView, _ other: UIView) -> NSLayoutConstraint

func equal<Axis, Anchor>(_ keyPath: KeyPath<UIView, Anchor>, constant: CGFloat = 0, priority: UILayoutPriority = .required) -> [Constraint] where Anchor: NSLayoutAnchor<Axis> {
    return equal(keyPath, keyPath, constant: constant, priority: priority)
}

func equal<Axis, Anchor>(_ keyPath: KeyPath<UIView, Anchor>, _ toAnchor: KeyPath<UIView, Anchor>, constant: CGFloat = 0, priority: UILayoutPriority = .required) -> [Constraint] where Anchor: NSLayoutAnchor<Axis> {
    return [{ view, other in

adiki

class FeedView: UIView {
    
    let collectionView = UICollectionView(frame: .zero, collectionViewLayout: GiftainerLayout())
    let tooltipView = TooltipView()
    
    init() {
        super.init(frame: .zero)
        
        addSubviews()
    }

adiki

class FeedViewController {
    
    private let referencesBag = ReferencesBag()
    private var tokens: [Token] = []
    
    override func viewDidLoad() {
        super.viewDidLoad()
        setupApplicationNotifications()
    }
}

adiki

class ReferencesBag {
    
    private var references: [AnyObject] = []
    
    func append(_ reference: AnyObject) {
        references.append(reference)
    }
}

// For details about Token class please visit this address :

adiki

import UIKit

class SizeClassView: UIView {

    private var regularHeightConstraints = [NSLayoutConstraint]()
    private var compactHeigthConstraints = [NSLayoutConstraint]()

    func addRegularHeightConstraint(regularHeightConstraint: NSLayoutConstraint) {
        regularHeightConstraints.append(regularHeightConstraint)
        addConstraint(regularHeightConstraint)