oleksii-demedetskyi

//: Playground - noun: a place where people can play

import Cocoa

// Operations
protocol Stringable {
    func stringify() -> String
}

protocol Evaluatable {

oleksii-demedetskyi

//: [Previous](@previous)

import Foundation

// One per function
final class Stub {
    let name: String
    let cmp: (AnyCall, AnyCall) -> Bool
    init(name: String, cmp: (AnyCall, AnyCall) -> Bool) {
        self.name = name

oleksii-demedetskyi

//: Playground - noun: a place where people can play

import Foundation

func cast<T>(any: Any) -> T {
    print(T.self) // Optional<String>
    print(any) // nil
    let value = any as! T
    //Could not cast value of type 'Swift.Optional<Swift.String>' (0x11ad4b028) to 'Swift.String' (0x1118024c8).
    print(value)

oleksii-demedetskyi

//: Playground - noun: a place where people can play

import UIKit

protocol SomeServiceProtocol {
    func doSomeStuff();
}

class SomeService : SomeServiceProtocol {
    func doSomeStuff() {

oleksii-demedetskyi

import UIKit
import ReactiveCocoa

// Bind property to any setter
func <~ <T> (left: T->Void , right: AnyProperty<T>) -> Disposable {
    return left <~ right.producer
}

// Bind signal producer to any setter
func <~ <T> (left: T->Void , right: SignalProducer<T, NoError>) -> Disposable {

oleksii-demedetskyi

//: Playground - noun: a place where people can play

import UIKit

// Simple struct to be fullfilled from JSON
struct User {
    let name: String
    let age: Int
}

oleksii-demedetskyi

//: Playground - noun: a place where people can play

protocol Cat {
    func meow() -> String
}

protocol Dog {
    func bark() -> String
}

oleksii-demedetskyi

class Murzik : Cat {
    func meow() -> String {
        return "Meeooow"
    }
}

class Muhtar : Dog {
    func bark() -> String {
        return "Woof"
    }

oleksii-demedetskyi

//: Playground - noun: a place where people can play

import UIKit

var str = "Hello, playground"

class ServiceLocator {
    private var registry : [String: Any] = [:]
    
    func registerService<T>(service: T) {

oleksii-demedetskyi

//: Playground - noun: a place where people can play

class TableView {
    init() {}
    
    struct DataSource {
        let numberOfRows : () -> Int
    }
    
    var delegate : DataSource?