arashkashi

import CoreData
import Foundation

protocol CoreDataManager {
    var uiContext: NSManagedObjectContext { get }
    func newBackgroundContext() -> NSManagedObjectContext
    func performBackgroundTaskOnUI(_ block: @escaping (NSManagedObjectContext) -> Void)
    func performBackgroundTask(_ block: @escaping (NSManagedObjectContext) -> Void)
    func loadStore(completionHandler: ((Error?) -> Void)?)
}

arashkashi

//: [Previous](@previous)

import Foundation
import SwiftUI
import Combine

//: Current Value Subject is a value, a publisher and a subscriber all in one
let currentValueSubject = CurrentValueSubject<Bool, Never>(true)

print(currentValueSubject.value)

arashkashi

//
//  AsynchronousOperation.swift
//
//  Created by Vasily Ulianov on 09.02.17.
//  Copyright © 2017 Vasily Ulianov. All rights reserved.
//

import Foundation

/// Subclass of `Operation` that add support of asynchronous operations.

arashkashi

//
//  CollectionViewDataSource.swift
//  Khan Academy
//
//  Created by Andy Matuschak on 10/14/14.
//  Copyright (c) 2014 Khan Academy. All rights reserved.
//

import UIKit