Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Sign up for free
Menu
Search
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Pricing
Search
Sign in
Sign up for free
エラーと警告で コードをデザインする ~赤と黄の輪舞曲~
Search
Yuka Ezura
August 20, 2016
Technology
4.4k
6
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
エラーと警告で コードをデザインする ~赤と黄の輪舞曲~
iosdc での発表資料です
Yuka Ezura
August 20, 2016
More Decks by Yuka Ezura
See All by Yuka Ezura
Mastering share sheet preview
ezura
4
1.5k
SF Symbols
ezura
9
1.5k
気遣いの iOS プログラミング
ezura
11
3.8k
Secret Swift tour
ezura
7
3.1k
Swift Album ver.4.1
ezura
3
1.6k
Swift と Kotlin
ezura
4
3k
哲学とSwiftの発表
ezura
5
670
アプリが動いたその先へ (iOS アプリ開発編)
ezura
1
1.2k
Blending Kotlin's culture into Swift
ezura
1
1.4k
Other Decks in Technology
See All in Technology
React Nativeでの OTA Updateって、 どう説明する?
ichiki1023
0
150
AIは爆速なのに、私が詰まっていた話 ― 音声入力と鳴くマスコットでボトルネックを削る
yama3133
0
520
おそらく日本で唯一のDevRelインターン生として
husengs7
0
170
AI Made Us Faster at Solving the Wrong Problems
marceloancelmo
0
160
自律型 AI をセキュアに実装!Gemini と MIG で作る動的コード実行環境
recruitengineers
PRO
1
210
HolmesGPTで始めるSREエージェント入門!プラットフォームの障害調査はAIにお任せ 〜
leveragestech
PRO
0
150
Codex概要
ymiya55
0
400
Meet AgentCore Identity Consent Portal
hironobuiga
3
190
[2026 Oracle Technical Deep Dive] Apache Iceberg × Oracle AI Database -Oracle Autonomous AI Lakehouseが実現するAI時代のデータ基盤- (2026年9月17日開催)
oracle4engineer
PRO
0
110
自主式軟體工廠
philipz
0
220
[2026 Oracle Technical Deep Dive] OCI AI Resilience -OCIのセキュリティ対策機能をきちんと使いこなす- (2026年9月17日開催)
oracle4engineer
PRO
0
130
スキルを作る、その前に!複数人で使われるスキルを 作るためのプロセス
junkifurukawa
2
300
Featured
See All Featured
AI in Enterprises - Java and Open Source to the Rescue
ivargrimstad
0
1.5k
Leveraging LLMs for student feedback in introductory data science courses - posit::conf(2025)
minecr
1
420
Highjacked: Video Game Concept Design
rkendrick25
PRO
1
470
Being A Developer After 40
akosma
91
590k
RailsConf 2023
tenderlove
30
1.6k
brightonSEO & MeasureFest 2025 - Winning Strategies for Black Friday CRO & PPC - Christian Goodrich
cargoodrich
3
860
Context Engineering - Making Every Token Count
addyosmani
9
1.2k
Heart Work Chapter 1 - Part 1
lfama
PRO
10
36k
Leveraging Curiosity to Care for An Aging Population
cassininazir
1
520
Chasing Engaging Ingredients in Design
codingconduct
0
340
So, you think you're a good person
axbom
PRO
2
2.2k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
35
2.9k
Transcript
έϮ⑲ͺຓ θ⑲ώΤόλΩϸͫΝ _᧬ͺԫᇷዛູ_ 2016/8/20 ezura
FSSPS͜ṽͫ͟͝Ħ
XBSOJOH͜ṽͫ͟͝Ħ
None
None
None
Δͩ͘ͼΛj
Δ͵ͺ᪇͡ ཱͺᲇձ͖ͱ͝͵ͱj
ဒᘥ ࣮ḝ ᙉණ
͟ΝĈ ᦉᷯΔ͔Ν
࣮ḝ᧸ͽុΜΤ᧬ͺԫᓸ ᓸͣΑΐͩΙ͘
έϮ⑲ͺຓ θ⑲ώΤόλΩϸͫΝ _᧬ͺԫᇷዛູ_
↟1IBOUPN5ZQF ↟%FDMBSBUJPO"UUSJCVUFT
$BTF
class HogeOperation { /// Ұ͚ͩݺͿ͜ͱ func prepare() /// prepare ޙ͔Β͑Δ
func execute() /// ͍ͭݺΜͰྑ͍ func mob() }
/// Ұ͚ͩݺͿ͜ͱ /// prepare ޙ͔Β͑Δ
private var isPrepared = false /// Ұ͚ͩݺͿ͜ͱ func prepare() {
guard !isPrepared else { fatalError("prepare() Λෳݺͳ͍͜ͱ") } isPrepared = true }
None
None
όλΩϸͩΚ͘Ĉ
1IBOUPN5ZQF ܕใΛར༻ͯ͠ॲཧͷޡΓΛࢦఠՄೳʹ
ᴰᨷঢ়ỪΑ ᑿᠭ൱ၙͼϦςψώΤᨷᤅ
protocol OperationState {} class Init: OperationState {} class Prepared: OperationState
{}
class HogeOperation<State: OperationState> {}
extension HogeOperation where State: Init { /// Ұ͚ͩݺͿ͜ͱ func prepared()
-> HogeOperation<Prepared> { let readyOp = HogeOperation<Prepared>() // TODO: ඞཁͳσʔλΛҾ͖ܧ͗ return readyOp } }
θϸϖΩϰέϮ⑲ ỹ ỹ
None
extension HogeOperation where State: Prepared { /// prepare ΛݺΜͩޙ͔Β༻Մೳ func
execute() { /* do somethig */ } }
θϸϖΩϰέϮ⑲
ଓ͟8FC https://gist.github.com/ezura/ f5aebef7bb86edbfd40b0bd1d0435e00
1IBOUPN5ZQF͖Ο͖Ο ↟ 'VODUJPOBM4OJQQFU1IBOUPN5ZQFT ↟ 4XJGU.POFZXJUI1IBOUPN5ZQFT ↟ 4XJGU1IBOUPN5ZQF ྶṞ ↟
1IBOUPN5ZQFθϸϖΩϰᙉͽঢ়ᴋφάψδͫΝ TIJCVZBTXJGU ↑ ঢ়ଶભҠΛ៉ྷʹදݱ͍ͯͯ͠ײಈ
$BTF
/// ΘΓʹ fuga Λ͏͜ͱʂ func hoge() { … }
όλΩϸͩΚ͘Ĉ
%FDMBSBUJPO "UUSJCVUFT ใΛ༩
/// ΘΓʹ fuga() Λ͏͜ͱʂ @available(*, unavailable, message="͓ޚ໔͞…(ƅωƅ)", renamed="fuga") func hoge()
{ … }
/// ΘΓʹ fuga() Λ͏͜ͱʂ @available(*, unavailable, message="͓ޚ໔͞…(ƅωƅ)", renamed="fuga") func hoge()
{ … }
/// ΘΓʹ fuga() Λ͏͜ͱʂ @available(iOS, deprecated=1, message="͓ޚ໔͞…(ƅωƅ)", renamed="fuga") func hoge()
{ … }
ᬋණ ↟ !BWBJMBCMF ↟ !EJTDBSEBCMF3FTVMU 4XJGU͝Λ ↟ !XBSO@VOVTFE@SFTVMU 4XJGUഇᬬ
: Swift3 ͔ΒҰ෦༷͕มߋ͞Ε·͢
ᓸͣ ͖ͣͯͫ͘͝Ħ
ͦਗ਼ௌ͔Μ͞ͺ͖ͦͨ͘ΐͩͱĈ