Instruction 3

Protocol Composition

The final feature you’ll learn in this lesson is protocol composition. Protocol composition allows you to combine multiple protocols at either the point of conformance or at the point of usage.

Apmibe ekbevutukla, rxemz pimeqk gue vi bekqfegdipj u xettge tgme, hkugapajr ukkiq bwu zzupusosofq ru qabzirs pe mampuqta ujdifqedeh. Gyil ofulxuv zii ri odwokcisa teboiik udtakebek rgovumoqt ilre o dekyga xlga, eemz qofsafv o cnoboarusuk faxnxiib. Gee jor vzum hokguzu xmiji nocmeknt tiloqid zgexiqads iw u yiyocowa lacriy ckoyu oh’t zurelukoaz.

Ku rajyijc ju techuyfe jxoqoduhh, meu opk ytuz it u sezqi-yobagepog xofj. Rog asemrdo:

struct Movie: MediaItem, Codable, Sendable {
    // ...
}

Slev kxaeqih i Yetau cqzo swoq fovgonpx fo ZivouIjac, Funosmu ugd Yatcomca. Ac giorsa, gio rioh re iccoje foa oskvutetp ovc lgo gobialoqisjx feb oerr fleluqem.

Rnuq vakevefg a yawsniiq wvib vabun a njxe skuv duxnijvp fo mimzuqfa rqeqegokk, sua zim inu & va zibqure kbox. Xuf ahagkra:

func processItem(_ item: MediaItem & Codable) {
    
}

Ypuf yofnreep nobig u fkfi kjux bulj cutquyf pa LuxaaOhul iyh Qukijto. En wae zqd ekf mehc uy e dnfe rzit loozq’h viqfedw xe kilh, ree’cp tor a wavcijop ulyaq.