ezura

protocol A {
    func protocolAFunc ();
}

protocol B {
    func protocolBFunc ();
}

struct Sample {
    func protocolAFunc() {

ezura

protocol A {
    func protocolFunc ();
}

protocol B {
    func protocolFunc ();
}

struct Sample {
}

ezura

protocol MyProtocol {
    func method1() -> String
}

extension MyProtocol {
    func method1() -> String {
        return "protocol (1)"
    }
    
    func method2() -> String {

ezura

func myDebugPrint(@autoclosure item: () -> String) {
#if DEBUG
    print(item())
#endif
}
myDebugPrint("aaa")

ezura

func myDebugPrint(@autoclosure item: () -> String) {
#if DEBUG
    print(item())
#endif
}

class Sample {
    func hoge() -> String {
        // 重い処理
        return "aaaa"

ezura

func myDebugPrint(@autoclosure item: () -> String) {
#if DEBUG
    print(item())
#endif
}

class Sample {
    func hoge() -> String {
        // 重い処理
        return "aaaa"

ezura

struct MyForwardIndexTypeStruct {
    var num: Int
    init(_ num: Int) {
        self.num = num
    }
}

// Equatable
func == (lhs: MyForwardIndexTypeStruct, rhs: MyForwardIndexTypeStruct) -> Bool {
    return lhs.num == rhs.num

ezura

struct MyForwardIndexTypeStruct {
    var num: Int
    init(_ num: Int) {
        self.num = num
    }
}

// Equatable
func == (lhs: MyForwardIndexTypeStruct, rhs: MyForwardIndexTypeStruct) -> Bool {
    return lhs.num == rhs.num

ezura

class ActionDelegate {
    let member = "ActionDelegate"
}

class DelegateSampleClass {
    weak var delegate : ActionDelegate!
    init (delegate: ActionDelegate) {
        self.delegate = delegate
    }
    func notOptional() {

ezura

protocol HogeProtocol {
    init(name: String)
}

class HogeClass : HogeProtocol {
    required init(name: String) { // HogeProtocol の init(name: String) 必須
    }
}
class Hige : HogeClass {
    required init(name: String) { // HogeProtocol の init(name: String) 必須