sunshinejr

//: #Default associatedtype & overriding
//: Let's make an example of how can you use default associatedtype, to make clear what
//: it really does.
//: We will create generic protocol for Container, with associatedtype for ItemType.
//: Our ItemType will haave a default value of Int.

protocol Container {
    
    associatedtype ItemType = Int
    

sunshinejr

protocol CurrencyProtocol { }

extension CurrencyProtocol {
    typealias Currency = Double
}

sunshinejr

struct ReallyImportantCurrencyStruct { 
    typealias Currency = Double
}

sunshinejr

protocol CurrencyProtocol {
    typealias Currency = Double
}

sunshinejr

struct ReallyImportantCurrencyStruct: CurrencyProtocol {

    func currencyFunction() -> ReallyImportantCurrencyStruct.Currency { 
        return 2.0
    }
}

let currency = ReallyImportantCurrencyStruct()
print(currency.currencyFunction())

sunshinejr

let currencies = [CurrencyProtocol]()

sunshinejr

struct LazyType {
    
    lazy var soomethingLazy: String = {
        return "Test lazy instance method"
    }()
}

sunshinejr

struct LazyType {
    
    // Normal usage
    lazy var soomethingLazy: String = {
        return "Test lazy instance method"
    }()
    
    // Lazy in statics
    static var somethingLazy: String = {
        return "Test lazy static method"

sunshinejr

// swift-tools-version:4.0

sunshinejr

// swift-tools-version:4.0
import PackageDescription

let package = Package(
    name: "Harvey",
    products: [
        .library(
            name: "Harvey",
            targets: ["Harvey"]),
    ],