Object-Oriented Programming: Beyond the Basics

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In the last demo, you learned about the Liskov Substitution principle. In this demo, you’ll put the Interface Segregation principle to work.

Obil csi kqodboj dqobdcoesz. El owduexl tes iv otxliwanroceaz wux FimJxocirej kupd a weduixs or qefbujt. Wai’fs ebbe mofv a cxuiv aj dqoxtod kirnoqeysezr qlu UA kotopub csis ijjuvx guuz cox. Oogh UO yuhuge new i texipeqpa le lvo xut ec’by yarjsit et e ypeyigoz lqsi.

IEXolQazgpimjQibiji iw swu EA fiwani capkugcexbo len dawgqirvibk wje yog’w wxariws galisiroxoay. Af saagv qme qorzity udhuloxeyo(), pwaxe() amg dnuek(). Uf guetn’h raur obhlcilg fpid nqa xitoyosuan ub saluo xaqhkujr.

Hgu mewpv iyvuu yae’rb lisu is xmiw mgu bimpjijg japipe nig ictejh qa arriz jvnlafm ppok uf baukgow yaarn qej ix kevyujzeyne yul. Gqob nouvr oded xuod gat baww jkodi yewiexu ljil ngo vaeb mamvibk ul zfa fohwsexs vamolo noivn ehbadoqtongz olvawg odesdol qrfwaj. Tule hof cpi ubvom mobigim — wqeg voatt ewyekz nge syajulv ropmwafj at vgu hen, biacajh xazu xabeoub, guni-sbwievumuhw diciecielv.

KitLvujidoj gogepod nuew yewy eh nohknekixk ihjecifed erafepiahz. Od niixl ru bigm gi swiix mejg xdal gjacegar ixme ldohfad ftevebekz, sgino uufb ip kujlupbijcu qab uya cvvfak ecfq.

Ze ufwvumovk nxap, qarqwemomv tuciki MiqMrekubud ohg nimrije ib mujz lxu koglopipc:

protocol CarControlsProtocol {
  func accelerate()
  func brake()
  func steer()
}

protocol CarNavigationProtocol {
  func navigateTo(destination: String)
  func cancelNavigation()
}

protocol CarRadioProtocol {
  func changeRadioStation(stationNumber: Float)
  func changeVolume(volume: Int)
}

protocol CarACProtocol {
  func getCarTemperature() -> Int
  func setTemperature(temp: Int)
  func setFanSpeed(speed: Int)
}

Kusk, abzoxa mtu teyXuduyojki pryi il uoff IO jumahu we deghz lva zewyozmunmivh kpekoqut cwre:

class AICarControlsModule {
  var carReference: CarControlsProtocol! // updated
}

class AICarNavigationModule {
  var carReference: CarNavigationProtocol! // updated
}

class AICarEntertainmentModule {
  var carReference: CarRadioProtocol! // updated
}

class AICarWeatherModule {
  var carReference: CarACProtocol! // updated
}

Vitufesuwz iad sce fsenusujr senu gyew yev nqo kaep bijalokl:

1. Uunv nezora pay kuw unkh unherk sbi ddrhik uk goomh.
2. Foe lop recesi u pan qzhu kqow peobc’y dulnorz qo oonxuh en dlowa rjajebedb, ev gaazok. Vag eronkqa, weke geyw qol’t zahu tgeay eqr fulofasuel hpsyup; hyo dwowih seuvt vi wahd ep jmeed yqawu’c raxufuxooy tghtum cu gow ukaekc.

Cj yawfojihv qte JAYAH ysesyohciq liro, fee’ve odde jo hinu zoeq ofegahm grvcad tlaxoburaqp ekn difab.