Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
enum as Option.
Search
r-plus
June 21, 2018
Technology
0
2.3k
enum as Option.
enum as Option.
potatotips #52
r-plus
June 21, 2018
Tweet
Share
More Decks by r-plus
See All by r-plus
Swizzling Swizzling Swizzling
r_plus
0
380
Image optimization for mobile on CDN
r_plus
0
640
Advanced guard of DeallocationChecker
r_plus
2
3k
東急ハンズの P2Pレジ間通信2018
r_plus
4
2k
Enterprise cert management.
r_plus
0
380
CircleCI 2.0 for macOS
r_plus
1
1.3k
carthage verify
r_plus
2
5.9k
業務アプリの切札 Programable KIOSK mode 大全
r_plus
0
4.2k
PropertyObserverとinoutでやらかした話
r_plus
1
1.3k
Other Decks in Technology
See All in Technology
Microsoft Fabric のネットワーク保護のアップデートについて
ryomaru0825
1
120
Goss: Faiss向けの新しい本番環境対応 Goバインディング #coefl_go_jp
bengo4com
1
1.4k
AI時代に非連続な成長を実現するエンジニアリング戦略
sansantech
PRO
3
840
Yahoo!ニュースにおけるソフトウェア開発
lycorptech_jp
PRO
0
590
Product Management Conference -AI時代に進化するPdM-
kojima111
0
270
Oracle Cloud Infrastructure:2025年8月度サービス・アップデート
oracle4engineer
PRO
0
150
「魔法少女まどか☆マギカ Magia Exedra」の必殺技演出を徹底解剖! -キャラクターの魅力を最大限にファンに届けるためのこだわり-
gree_tech
PRO
0
370
つくって納得、つかって実感! 大規模言語モデルことはじめ
recruitengineers
PRO
31
11k
実運用で考える PGO
kworkdev
PRO
0
120
ヒューリスティック評価を用いたゲームQA実践事例
gree_tech
PRO
0
360
Grafana MCPサーバーによるAIエージェント経由でのGrafanaダッシュボード動的生成
hamadakoji
1
850
モダンフロントエンド 開発研修
recruitengineers
PRO
9
5.7k
Featured
See All Featured
Fashionably flexible responsive web design (full day workshop)
malarkey
407
66k
Scaling GitHub
holman
463
140k
Making Projects Easy
brettharned
117
6.4k
ピンチをチャンスに:未来をつくるプロダクトロードマップ #pmconf2020
aki_iinuma
126
53k
YesSQL, Process and Tooling at Scale
rocio
173
14k
Helping Users Find Their Own Way: Creating Modern Search Experiences
danielanewman
29
2.8k
Automating Front-end Workflow
addyosmani
1370
200k
It's Worth the Effort
3n
187
28k
Thoughts on Productivity
jonyablonski
69
4.8k
Producing Creativity
orderedlist
PRO
347
40k
Rails Girls Zürich Keynote
gr2m
95
14k
Product Roadmaps are Hard
iamctodd
PRO
54
11k
Transcript
FOVN BT0QUJPO 6/21 potatotips #52 taiki komaba(@r_plus)
UBJLJLPNBCB !S@QMVT
0QUJPO4FU
CJUຖʹΦϓγϣϯΛׂͯΔ ΦϓγϣϯͷͨΊͷͷͬΆ͍
public extension DispatchQueue { public struct Attributes : OptionSet {
public let rawValue: UInt64 public init(rawValue: UInt64) { self.rawValue = rawValue } public static let concurrent = Attributes(rawValue: 1<<1) @available(macOS 10.12, iOS 10.0, tvOS 10.0, watchOS 3.0, *) public static let initiallyInactive = Attributes(rawValue: 1<<2) … 'PVOEBUJPOͰ Α͘ΘΕ͍ͯΔ https://github.com/apple/swift/blob/master/stdlib/public/SDK/Dispatch/Queue.swift
struct ShippingOptions: OptionSet { let rawValue: Int static let nextDay
= ShippingOptions(rawValue: 1 << 0) static let secondDay = ShippingOptions(rawValue: 1 << 1) static let priority = ShippingOptions(rawValue: 1 << 2) static let standard = ShippingOptions(rawValue: 1 << 3) } ࣮͢Δͱ͜͏ͳΔ
self.doSomething(arg, option: [.nextDay, .priority]) … func doSomething(_ arg: Any, option:
ShippingOptions) { … } ͏ଆ͜͏
func doSomething(_ arg: Any, option: ShippingOptions) { if option.contains(.nextDay) {
… } if option.contains(. secondDay) { … } } ͰɺͲͷΦϓγϣϯ͕ࢦఆ͞Ε͔ͨͰ ڍಈΛม͑Δʜ
None
ͳΜ͔Φϓγϣϯఆ͍͚ͨͩ͠ʹͯ͠ هड़͕໘͡Όͳ͍ʁ struct ShippingOptions: OptionSet { let rawValue: Int static
let nextDay = ShippingOptions(rawValue: 1 << 0) static let secondDay = ShippingOptions(rawValue: 1 << 1) static let priority = ShippingOptions(rawValue: 1 << 2) static let standard = ShippingOptions(rawValue: 1 << 3) }
struct ShippingOptions: OptionSet { let rawValue: Int static let nextDay
= ShippingOptions(rawValue: 1 << 0) static let secondDay = ShippingOptions(rawValue: 1 << 1) static let priority = ShippingOptions(rawValue: 1 << 2) static let standard = ShippingOptions(rawValue: 1 << 3) } ͳΜ͔Φϓγϣϯఆ͍͚ͨͩ͠ʹͯ͠ هड़͕໘͡Όͳ͍ʁ ͜ͷ͋ͨΓ͕ɻ
FOVNͰͬͯΈΑ͏
0QUJPOఆٛˠγϯϓϧFOVN enum ShippingOptions { case nextDay case secondDay case priority
case standard }
self.doSomething(arg, option: .nextDay) … func doSomething(_ arg: Any, option: ShippingOptions)
{ … } ͏ଆ͕͜͏
͜ͷ··ͩͱ ෳΦϓγϣϯࢦఆ͕ग़དྷͳ͍ͷͰʜ
ՄมҾ ʢ7BSJBEJD1BSBNFUFSTʣ
͜͏ͩͬͨͷΛ self.doSomething(arg, option: .nextDay) … func doSomething(_ arg: Any, option:
ShippingOptions) { … }
self.doSomething(arg, option: .nextDay, . priority) … Մมʹ͢Δ func doSomething(_ arg:
Any, option: ShippingOptions…) {…}
func doSomething(_ arg: Any, option: ShippingOptions…) { if option.contains(.nextDay) {
… } if option.contains(. secondDay) { … } } ࣮ଆʹ"SSBZ͕དྷΔͷͰมߋͳ͠
·ͱΊ ϝιουͷΦϓγϣϯΛ ؆୯ʹఆ͍͚ٛͨͩ͠Ͱ͋ΕΞϦͳͷͰ
͓ΘΓɻ