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
Context Receiversに思いを馳せる / Context Receivers
Search
uzzu
October 05, 2022
Technology
0
700
Context Receiversに思いを馳せる / Context Receivers
DroidKaigi2022 Dialogs - 2022/10/05 14:20-14:45
https://droidkaigi.jp/2022/timetable/363729
uzzu
October 05, 2022
Tweet
Share
More Decks by uzzu
See All by uzzu
StoreKitのこれまでとこれから / StoreKit 2 from 1
uzzu
5
17k
Autofill Framework
uzzu
0
130
アプリ内課金の最新事情 クライアントサイド編 / In-app Purchase in Cookpad 2019
uzzu
3
4.5k
Billing Client 2.0 acknowledgement
uzzu
0
17k
Promoting IAP対応から学ぶ外部アプリ内課金実装 / Promoting IAP and others
uzzu
2
1.5k
ブログ作り直した / My blog @ Othlo Tech
uzzu
0
170
新規アプリ開発を支えるユーザ・決済基盤
uzzu
2
2.8k
kotlin-mpp-library-tips
uzzu
1
6.3k
Coroutine Kyuin
uzzu
2
290
Other Decks in Technology
See All in Technology
データアナリストからアナリティクスエンジニアになった話
hiyokko_data
0
240
トヨタ生産方式(TPS)入門
recruitengineers
PRO
6
1.4k
ZOZOマッチのアーキテクチャと技術構成
zozotech
PRO
2
1.1k
実運用で考える PGO
kworkdev
PRO
0
130
実践アプリケーション設計 ①データモデルとドメインモデル
recruitengineers
PRO
5
1.4k
シークレット管理だけじゃない!HashiCorp Vault でデータ暗号化をしよう / Beyond Secret Management! Let's Encrypt Data with HashiCorp Vault
nnstt1
2
130
コスト削減の基本の「キ」~ コスト消費3大リソースへの対策 ~
smt7174
2
320
kubellが考える戦略と実行を繋ぐ活用ファーストのデータ分析基盤
kubell_hr
0
120
まだ間に合う! StrandsとBedrock AgentCoreでAIエージェント構築に入門しよう
minorun365
PRO
11
700
Figma + Storybook + PlaywrightのMCPを使ったフロントエンド開発
yug1224
10
3.6k
【5分でわかる】セーフィー エンジニア向け会社紹介
safie_recruit
0
30k
AWS環境のリソース調査を Claude Code で効率化 / aws investigate with cc devio2025
masahirokawahara
2
1k
Featured
See All Featured
The Web Performance Landscape in 2024 [PerfNow 2024]
tammyeverts
9
790
The Pragmatic Product Professional
lauravandoore
36
6.8k
How to Ace a Technical Interview
jacobian
279
23k
Product Roadmaps are Hard
iamctodd
PRO
54
11k
Typedesign – Prime Four
hannesfritz
42
2.8k
Connecting the Dots Between Site Speed, User Experience & Your Business [WebExpo 2025]
tammyeverts
8
510
Site-Speed That Sticks
csswizardry
10
800
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
139
34k
Building Flexible Design Systems
yeseniaperezcruz
328
39k
Bootstrapping a Software Product
garrettdimon
PRO
307
110k
Embracing the Ebb and Flow
colly
87
4.8k
How To Stay Up To Date on Web Technology
chriscoyier
790
250k
Transcript
Context Receiversʹ ࢥ͍ΛͤΔ uzzu @ 2022/10/05 DroidKaigi 2022 DAY.01
Cluster, Inc. All Rights Reserved. 2 ҙ 2022/09࣌Ͱͷ ใΛݩʹൃද͓ͯ͠Γ·͢ ࢥ͍ΛͤΔ༰ͳͷͰओ؍ؚ·Ε͓ͯΓ·͢
Context Receiversݱࡏprototypeஈ֊Ͱ͢ ྃ͝ঝ͍ͩ͘͞
Cluster, Inc. All Rights Reserved. 3 ࣗݾհ @uzzu Cluster, Inc.
ιϑτΣΞΤϯδχΞ झຯ: VR, ࡶଟͳٕज़ݕূ, ಡॻ, DTM, ֨ήʔ, εϓϥ
Cluster, Inc. All Rights Reserved. 4 ClusterͷAndroidΞϓϦʹ͍ͭͯ AndroidΞϓϦ ࠾༻ใ AndroidΞϓϦΤϯδχΞืू
⬆ inroom (Unity as a Library) ⬅︎ outroom (Native App)ɹɹɹ
Cluster, Inc. All Rights Reserved. 5 ΞδΣϯμ ɾContext Receivers͕དྷΔ·Ͱͷ͓͞Β͍ ɾContext
Receiversͱɺ༻ྫ ɾContext Receiversͷ՝ɺࢥ͍ ɾ·ͱΊ
Cluster, Inc. All Rights Reserved. 6 ContextReceivers͕དྷΔ·Ͱͷ͓͞Β͍ KEEP(https://github.com/Kotlin/KEEP) YouTrack(https://youtrack.jetbrains.com/) Kotlin
Slack(https://kotlinlang.slack.com/) ͍͔ͭ͋͘Δ͕ͦͷதͰ2ͭͷissueΛൈਮ
Cluster, Inc. All Rights Reserved. 7 Compile-time Extension Interfaces https://github.com/Kotlin/KEEP/pull/87
2017/10ࠒ ɾ࠷ॳظʮType Classesʯͱ͍͏λΠτϧͰproposal͕ॻ͔Ε͍ͯͨ ɾʮ͍ͭʹKotlinʹܕΫϥε͕དྷΔ…?!ʯͱ͍͏ࣄͰք۾Γ্͕Δ
Cluster, Inc. All Rights Reserved. 8 Compile-time Extension Interfaces https://github.com/Kotlin/KEEP/pull/87
Cluster, Inc. All Rights Reserved. 9 Compile-time Extension Interfaces https://github.com/Kotlin/KEEP/pull/87
ɾcompanion objectͱͷׂͷॏෳ ɾJVMͱͷ૬ޓӡ༻ ɾෳͷϨγʔόʹର͢Δ֦ுߏจ͕ඞཁ ɾimplicit parameterͷ͠͞ ɾetc…
Cluster, Inc. All Rights Reserved. 10 Multiple receivers on extension
functions/properties https://youtrack.jetbrains.com/issue/KT-10468 https://youtrack.jetbrains.com/issue/KT-42435
Cluster, Inc. All Rights Reserved. 11 ͦͯ͠Context Receivers https://github.com/Kotlin/KEEP/issues/259 https://github.com/Kotlin/KEEP/blob/master/proposals/context-
receivers.md ឯ༨ۂંʹ͍ͭͯProposalʹॻ͔Ε͍ͯΔ (Alternative approaches and design tradeoffs) 1.6.20-M1 ʹͯPrototypeͱͯ͠ϦϦʔε https://blog.jetbrains.com/kotlin/2022/02/kotlin-1-6-20-m1- released/ freeCompilerArgs = listOf("-Xcontext-receivers")
Cluster, Inc. All Rights Reserved. 12 Context ReceiversͷGoal (ͷ͏ͪ2͚ͭͩհ) ɾίϯςΩετநԽΛهड़͢ΔͨΊͷ
ɹmember extension(ϝϯόʔ֦ு)ΛऔΓআ͘
Cluster, Inc. All Rights Reserved. 13 Context ReceiversͷGoal (ͷ͏ͪ2͚ͭͩհ)
Cluster, Inc. All Rights Reserved. 14 Context ReceiversͷGoal (ͷ͏ͪ2͚ͭͩհ)
Cluster, Inc. All Rights Reserved. 15 Context ReceiversͷGoal (ͷ͏ͪ2͚ͭͩհ)
Cluster, Inc. All Rights Reserved. 16 Context ReceiversͷGoal (ͷ͏ͪ2͚ͭͩհ) ɾKotlinͷܕγεςϜͰෳͷϨγʔόΛ࣋ͭ
ɹίʔυϒϩοΫΛදݱͰ͖ΔΑ͏ʹ͢Δ
Cluster, Inc. All Rights Reserved. 17 Context Receiversͷͦͷଞͷྫ ɾίϯετϥΫλͷӅṭ +
Contextࢀর
Cluster, Inc. All Rights Reserved. 18 Context Receiversͷͦͷଞͷྫ ɾOverloading(※ҙ͋Γ) ͜͏͍͏ίʔυॻ͔ͳ͍Ͱɺͳ༰Proposalʹهࡌ͞Ε͍ͯΔ
(contexts-and-coding-style)
Cluster, Inc. All Rights Reserved. 19 ɾContext Functionͷείʔϓ֊ͷਂ͞(ݕ౼த) ɾReflectionະରԠ(Prototypeஈ֊ͰΒͳͦ͏ͳؾ͕) ɾΤοδέʔεͷରԠ
(Kotlin 1.8.0ͰҰ෦मਖ਼ࡁ) ɾSyntax Highlighting(Τϥʔు͘ͷͰےͰ) ɾetc… Context Receiversͷ՝(Future Work)
Cluster, Inc. All Rights Reserved. 20 (ϓϩτλΠϓஈ֊Ͱͱ͔͍͘͏͖ Ͱͳ͍ͷঝͰ) ɾهड़ͷબࢶ͕ଟͯ͋͘Μ·Γࠓ·ͰͷKotlinΒ͘͠ͳ͍Α͏ͳؾ͕͢Δͷ͕ ɹݸਓతʹٯʹ໘ന͍
ɾCompile-time extensionํ໘Ͱ্͕ͬͨ՝͔ΒݟΔʹՄೳͳهड़ ɹ͜Ε͔ΒߜΒΕ͍ͯͬͯཉ͍͠ͳʔͱࢥ͍ͬͯΔ ɹ(ཞ༻͕ාͯ͘ਂ͘৮Εͳ͍ਓʑ͕͍ͦ͏ͳͷ͍ͬͨͳ͍ɺͱ͍͏ҙຯͰ) ɾݱঢ়Ͱᙱ͍ͱ͜Ζʹख͕ಧ͘ͷͰݸਓతʹॿ͔Δ Context Receiversͷࢥ͍
Cluster, Inc. All Rights Reserved. 21 Context Receiversͷࢥ͍ ɾͦͦͳͥ ”Context”
ʹͳͬͨͷ͔…ʁ ɹ=> Multiple receiversͷϓϩτλΠϓͷஈ֊Ͱ ɹɹύϥϝʔλΛஔ͖͑ΔͨΊʹ͋ΔΘ͚Ͱͳ͘ ɹɹؔݺͼग़͠ͷͨΊͷίϯςΩετΛՃ͢Δҝͷ ɹɹઃܭ͕ඞཁͩͱؾ͍ͮͨҝ ɹɹ=> ύϥϝʔλͷΘΓʹ༻͢Δ߹ʹ ɹɹɹهड़͕ʹͳΔΑ͏͍͑ͯͯ͠Δ ɹɹɹ=> ཞ༻͞Εͳ͍Α͏ʹ https://youtrack.jetbrains.com/issue/KT-10468/Multiple-receivers-on-extension-functionsproperties#focus=Comments-27-4608759.0-0
Cluster, Inc. All Rights Reserved. 22 Context Receiversͷࢥ͍ ɾͦͦͳͥ ”Context”
ʹͳͬͨͷ͔…ʁ ɹ=> Multiple receiversͷϓϩτλΠϓͷஈ֊Ͱ ɹɹύϥϝʔλΛஔ͖͑ΔͨΊʹ͋ΔΘ͚Ͱͳ͘ ɹɹؔݺͼग़͠ͷͨΊͷίϯςΩετΛՃ͢Δҝͷ ɹɹઃܭ͕ඞཁͩͱؾ͍ͮͨҝ ɹɹ=> ύϥϝʔλͷΘΓʹ༻͢Δ߹ʹ ɹɹɹهड़͕ʹͳΔΑ͏͍͑ͯͯ͠Δ ɹɹɹ=> ཞ༻͞Εͳ͍Α͏ʹ https://youtrack.jetbrains.com/issue/KT-10468/Multiple-receivers-on-extension-functionsproperties#focus=Comments-27-4608759.0-0 ͻΐͬͱͯ͠ਅ໘ʹimplicit parameterʹcode generationͳΓͰ ͪΌΜͱରԠͰ͖ΔΑ͏ʹɺ༨നͱ͍ͯͯ͠͠ΔͷͩΖ͏͔…ʁ ؾʹͳΔ…ͦΘͦΘ…ৄ͍͠ਓڭ͍͑ͯͩ͘͞
Cluster, Inc. All Rights Reserved. 23 ·ͱΊ ɾContext ReceiversܕΫϥεͷProposal͔Β
ɹෳͷϨγʔόʹର͢Δ֦ுߏจ͕ඞཁͱ͍͏ ɹྲྀΕͰ࡞ΒΕͨ ɾKotlinʹͯࣗ͘͠͠༝ͷߴ͍Proposal ɾָ͍͠ͷࠓ͚͔ͩ…ʁ ɹProposalΛಡΜͰָ͘͠ɹ ʂ
Context Receiversʹ ࢥ͍ΛͤΔ uzzu @ 2022/10/05 DroidKaigi 2022 DAY.01