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
復習OptionSet
Search
Tomohiro Nishimura
December 26, 2016
Technology
0
270
復習OptionSet
Tomohiro Nishimura
December 26, 2016
Tweet
Share
More Decks by Tomohiro Nishimura
See All by Tomohiro Nishimura
レガシーシステム洗い出し大作戦
sixeight
0
1.6k
我々のRealmはどこからやってくるのか
sixeight
1
400
まだ見ぬAPIに思いを馳せて
sixeight
0
130
今年読んだまんが
sixeight
0
230
べんりな検索ワード
sixeight
0
240
Readable Width in action
sixeight
0
170
UIPreviewInteraction: Overview
sixeight
1
620
Accessing the Music Library
sixeight
1
2.7k
Web APIについての雑談
sixeight
0
400
Other Decks in Technology
See All in Technology
Lambda management with ecspresso and Terraform
ijin
2
150
Amazon Bedrock AgentCoreのフロントエンドを探す旅 (Next.js編)
kmiya84377
1
120
2025新卒研修・HTML/CSS #弁護士ドットコム
bengo4com
3
13k
製造業の課題解決に向けた機械学習の活用と、製造業特化LLM開発への挑戦
knt44kw
0
160
ホリスティックテスティングの右側も大切にする 〜2つの[はか]る〜 / Holistic Testing: Right Side Matters
nihonbuson
PRO
0
590
帳票構造化タスクにおけるLLMファインチューニングの性能評価
yosukeyoshida
1
230
Claude Codeは仕様駆動の夢を見ない
gotalab555
18
4.9k
リリース2ヶ月で収益化した話
kent_code3
1
200
LLM 機能を支える Langfuse / ClickHouse のサーバレス化
yuu26
5
540
【新卒研修資料】数理最適化 / Mathematical Optimization
brainpadpr
25
12k
Jamf Connect ZTNAとMDMで実現! 金融ベンチャーにおける「デバイストラスト」実例と軌跡 / Kyash Device Trust
rela1470
0
150
AI関数が早くなったので試してみよう
kumakura
0
160
Featured
See All Featured
Designing Dashboards & Data Visualisations in Web Apps
destraynor
231
53k
Imperfection Machines: The Place of Print at Facebook
scottboms
267
13k
Bootstrapping a Software Product
garrettdimon
PRO
307
110k
YesSQL, Process and Tooling at Scale
rocio
173
14k
Site-Speed That Sticks
csswizardry
10
750
Measuring & Analyzing Core Web Vitals
bluesmoon
7
540
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
marcduiker
30
2.2k
Learning to Love Humans: Emotional Interface Design
aarron
273
40k
[RailsConf 2023 Opening Keynote] The Magic of Rails
eileencodes
29
9.6k
4 Signs Your Business is Dying
shpigford
184
22k
The Web Performance Landscape in 2024 [PerfNow 2024]
tammyeverts
8
750
The Cult of Friendly URLs
andyhume
79
6.5k
Transcript
෮श0QUJPO4FU ؔϞόΠϧΞϓϦݚڀձ
JE4JYFJHIU w ג ͯͳΞϓϦέʔγϣϯΤϯδχΞ w ۙگ w יϏʔϧͱ͍͏ΠϕϯτͰ࣌ؒҿΈଓ͚ ͨΒඓਫ͕ࢭ·Βͳ͘ͳΓ·ͨ͠
None
0QUJPO4FU
త w Ϣʔβʔ͕ૢ࡞ՄೳͳॲཧΛࢦఆ͢Δ w ྫ͑ w ಡΜͰ͍͍͚Ͳɺॻ͖ࠐΉࣄͰ͖ͳ͍ͱ͔ w ฤूͰ͖Δ͚Ͳɺ৽ن࡞Ͱ͖ͳ͍ͱ͔
&OVNFSBUJPO enum Permission { case read case create case edit
case delete }
&OVNFSBUJPO let permissions: [Permission] = [.read, .create] func read() {
guard permissions.contains(.read) else { forbidden() return } showReadViewController() }
&OVNFSBUJPO w ϦιʔεͷύʔϛογϣϯͱϢʔβʔͷݖݶ w ͜ͷϦιʔεʹରͯ͜͠ͷϢʔβʔ͕Մೳͳૢ࡞ ͳΜͳͷ͔ w ͞Βʹάϧʔϓຖʹݖݶ͕͋ͬͨΓ͢Δͱʜ let resourcePermissions:
[Permission] = [.read] let userPermissions: [Permission] = [.read, .create, .edit, .delete] resourcePermissions.filter { permission in return userPermissions.contains(permission) }
None
#JUXJTFPQFSBUJPO // _ _ _ _ delete edit create read
// 0 0 0 0 1 1 1 1 struct Permission { static let read: UInt8 = 0b00000001 static let create: UInt8 = 0b00000010 static let edit: UInt8 = 0b00000100 static let delete: UInt8 = 0b00001000 } 6*OUʹ໊લ͚ͭΔͱྑͦ͞͏ʜ
#JUXJTFPQFSBUJPO let permissions: UInt8 = Permission.read | Permission.create func read()
{ guard (permissions & Permission.read) != 0 else { forbidden() return } showReadViewController() }
#JUXJTFPQFSBUJPO w ͜ͷϦιʔεʹରͯ͜͠ͷϢʔβʔ͕Մೳͳૢ࡞ ͳΜͳͷ͔ let resource: UInt8 = Permission.read let
user: UInt8 = Permission.read | Permission.create | Permission.edit | Permission.delete let currentPermission = resource & user
None
0QUJPO4FU struct Permission: OptionSet { let rawValue: UInt8 static let
read = Permission(rawValue: 1 << 0) static let create = Permission(rawValue: 1 << 1) static let edit = Permission(rawValue: 1 << 2) static let delete = Permission(rawValue: 1 << 3) }
0QUJPO4FU let permissions: Permission = [.read, .create] func read() {
guard permissions.contains(.read) else { forbidden() return } showReadViewController() }
4FU"MHFCSB func contains(Self) func insert(Self) func update(with: Self) func remove(Self)
func union(Self) func intersection(Self) func symmetricDifference(Self) func formUnion(Self) func formIntersection(Self) func formSymmetricDifference(Self)
4FU"MHFCSB let p: Permission = [.read, .create, .edit] let o:
Permission = [.edit, .delete] p //=> 0111 o //=> 1100 p.union(o) //=> 1111 p.intersection(o) //=> 0100 p.symmetricDifference(o) //=> 1011
0QUJPO4FU w ͜ͷϦιʔεʹରͯ͜͠ͷϢʔβʔ͕Մೳͳૢ࡞ ͳΜͳͷ͔ let resource: Permission = [.read] let
user: Permission = [.read, .create, .edit, .delete] let current: Permission = resource.intersection(user)
None
Γ͍ͨ if case Permission.read = userPermission { print("Can read") }
Γ͍ͨ switch userPermission { case Permission.read: print("Can Read") fallthrough case
Permission.create: print("Can Create") fallthrough case Permission.edit: print("Can edit") fallthrough case Permission.delete: print("Can delete") }
dPQFSBUPS extension Permission { static func ~=(lhs: Permission, rhs: Permission)
-> Bool { return rhs.contains(lhs) } }
None
༇շͳؒͨͪ
༇շͳؒͨͪ w 6*$POUSPM4UBUF w OPSNBM w EJTBCMFE w FUDʜ button.setTitle("དྷ",
for: .normal) button.setTitle("ؔϞό", for: [.highlighted, .selected]) button.setTitle("ΑΖ͘͠", for: .disabled)
Α͍͓Λ