Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Kotlin学習とライブラリ作成

yagi
March 24, 2016
Technology
1
3.9k

 Kotlin学習とライブラリ作成

ライブラリ作成をしながらKotlinを学習するといいんじゃないかなーという話です

yagi

March 24, 2016
Tweet

More Decks by yagi

See All by yagi
これどうやって動いてるんだ？ Spring Framework/Bootのソースを読む
sys1yagi
1
800
Kotlin コルーチンを 理解しよう 2019 - KotlinFest2019 -
sys1yagi
39
27k
5分でわかるKotlin Coroutines Flow
sys1yagi
19
14k
Androidと非同期処理 とCoroutine1.0.0
sys1yagi
12
9.5k
Kotlin コルーチンを 理解しよう
sys1yagi
42
21k
アーキテクチャと Scaffolding Template
sys1yagi
8
1k
Androidの非同期処理をKotlinコルーチンで行う
sys1yagi
3
21k
解剖Kotlin ~バイトコードを読み解く~
sys1yagi
18
8.7k
Androidアプリケーションのビルド体験をリモートインスタンスで改善する
sys1yagi
4
550

Other Decks in Technology

See All in Technology
ユーザー体験を毀損せず収益は向上させる広告を実現したい
line_developers
PRO
1
250
Retca Cloud
bau
0
1.7k
Symfony Serializer Deep Dive
suzuki
0
200
KDD2022論文読み会：LinkedInの推薦システムから学ぶ
pacocat
0
240
aws-nuke + Github Actoinsで AWSアカウントのクリーンアップを 自動化した話
msato
0
720
All About Regular Expressions
jadeallenx
1
100
PHP メモリ管理術
memory1994
PRO
2
330
Autonomous Database Cloud 技術詳細 / adb-s_technical_detail_jp
oracle4engineer
PRO
10
20k
Drivemode 会社資料 (採用向け) - We are hiring!
drivemode
0
140
AWSの「今」 - PHPのコードを素早く動かすための サービスのご紹介 / PHPCon2022 AWS Japan Session
koemu
2
890
Abstracting Too Early
mattstauffer
0
140
IIJmio meeting 33 IIJmio 2022年夏のおすすめ端末
iij_techlog
0
2.5k

Featured

See All Featured
Build your cross-platform service in a week with App Engine
jlugia
220
17k
Designing Dashboards & Data Visualisations in Web Apps
destraynor
223
49k
Designing Experiences People Love
moore
130
22k
Mobile First: as difficult as doing things right
swwweet
213
7.6k
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
151
13k
Building Your Own Lightsaber
phodgson
95
4.7k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
109
16k
Statistics for Hackers
jakevdp
782
210k
Why Our Code Smells
bkeepers
PRO
324
55k
KATA
mclloyd
7
9k
GraphQLとの向き合い方2022年版
quramy
17
8.9k
Atom: Resistance is Futile
akmur
255
23k

Transcript

  1. ,PUMJOֶशͱϥΠϒϥϦ࡞੒ 2016 03 24 @ Sansan Toshihiro Yagi

  2. About Me Toshihiro Yagi Twitter : sys1yagi Programmer at Cookpad

    Inc. Android engineer Kotlin͸2014೥ॳ಄ลΓ͔ΒŧŔŕŪ৮͍ͬͯΔఔ౓

  3. Target & Agenda ,PUMJOֶशͷͨΊʹϥΠϒϥϦ࡞ͬͯΈΔͷ͸݁ ߏ͍͍Μ͡Όͳ͍͔ͳʔͱ͍͏࿩Ͱ͢ɻ LNPDLJUPͱ͍͏ϥΠϒϥϦͱڞʹ࡞੒࣌ʹ࢖ͬ ͨ,PUMJOͷػೳͳͲΛ঺հ͠·͢ɻ ,PUMJOͷجຊతͳݴޠͷػೳ͸஌͍ͬͯͯ,PUMJO Λ࢖ͬͯ۩ମతʹͲ͏͍ͬͨࣄ͕Ͱ͖ͦ͏͔ͳ͊ʔ ͱߟ͍͑ͯΔਓ޲͚

  4. What is kmockito?

  5. Wrapper of Mockito for Kotlin NPDL WBSJUFN*UFNNPDL  XIFO JUFNMFOHUI

    JOWPLFEUIFO3FUVSO   BOTXFS JUFNTPNF.FUIPE BOZ*OU BOZ4USJOH BOZ BOZ  JOWPLFE UIFO"OTXFS\ WBM B C D E JUBSHVNFOUT*OU 4USJOH *UFN /BNF  EPTPNFUIJOH ^ WFSJGZ JUFNWFSJGZ UJNFT  MFOHUI https://github.com/sys1yagi/kmockito

  6. Motivation

  7. bXIFO`͸,PUMJOͷ༧໿ޠ WBMJUFNNPDL *UFNDMBTTKBWB  AXIFOA JUFNMFOHUI UIFO3FUVSO  ༧໿ޠͱඃΒͳ͍Α͏ʹΤεέʔϓ͕ඞཁ ৑௕

  8. BOZ ͕OVMMΛฦ͢ AXIFOA JUFNMFOHUI BOZ UIFO3FUVSO ʜ any() return null

    and cause runtime error GVOMFOHUI UFYU4USJOH *OU\ʜ^ Non-Null

  9. Yes kmockito!

  10. Using features of Kotlin top-level extensions inline and reified Extension

    Properties Destructuring Declarations

  11. top-level extensions

  12. τοϓϨϕϧʹؔ਺͕ॻ͚ͯศར

  13. TUBUJDϝιου܈Λ࣋ͭΫϥε͕ੜ੒͞ΕΔ ֦ுؔ਺܈͸XX_extension.ktʹूΊΔͱΑͦ͞͏

  14. lnline & reified

  15. ৑௕ͳܕͷهड़Λ΍ΊΔ WBMJUFNNPDL *UFNDMBTTKBWB WBMJUFN*UFNNPDL  JUFNMFOHUI NPDL

  16. ৑௕ͳܕͷهड़Λ΍ΊΔ GVO5"OZNPDL .PDLJUPNPDL 5DMBTTKBWB

  17. ৑௕ͳܕͷهड़Λ΍ΊΔ GVO5"OZNPDL .PDLJUPNPDL 5DMBTTKBWB ܕফڈʹΑͬͯΤϥʔ

  18. ৑௕ͳܕͷهड़Λ΍ΊΔ GVO5"OZNPDL .PDLJUPNPDL 5DMBTTKBWB ܕফڈʹΑͬͯΤϥʔ JOMJOFGVOSFJpFE5"OZNPDL .PDLJUPNPDL 5DMBTTKBWB

  19. ৑௕ͳܕͷهड़Λ΍ΊΔ GVO5"OZNPDL .PDLJUPNPDL 5DMBTTKBWB ܕফڈʹΑͬͯΤϥʔ JOMJOFGVOSFJpFE5"OZNPDL .PDLJUPNPDL 5DMBTTKBWB JOMJOFԽͯ͠ܕύϥϝʔλʹSFJpFEΛ෇༩͢Δͱ5Λ۩৅ܕͱ͔ͯ͋ͭ͑͠Δ ˞LPUMJOSFqFDU͕ඞཁͰ͢

  20. ৑௕ͳܕͷهड़Λ΍ΊΔ JOMJOFGVOSFJpFE5"OZNPDL .PDLJUPNPDL 5DMBTTKBWB WBMJUFN*UFNNPDL  JUFNMFOHUI NPDL :FT

  21. Extension Properties

  22. ৑௕ͳϝιουݺͼग़͠Λ΍ΊΔ GVO55JOWPLFE .PDLJUPAXIFOA UIJT JUFNMFOHUI JOWPLFE UIFO3FUVSO 

  23. ৑௕ͳϝιουݺͼग़͠Λ΍ΊΔ GVO55JOWPLFE .PDLJUPAXIFOA UIJT JUFNMFOHUI JOWPLFE UIFO3FUVSO  ͳͯ͘΋Α͘ͳ͍ʁ

  24. ৑௕ͳϝιουݺͼग़͠Λ΍ΊΔ GVO55JOWPLFE .PDLJUPAXIFOA UIJT  WBM55JOWPLFE0OHPJOH4UVCCJOH5 HFU JOWPLFE ɾ&YUFOTJPO1SPQFSUJFTͰ೚ҙͷΫϥεʹϓϩύςΟΛ෇༩͢Δ ɾϓϩύςΟΞΫηε࣌ʹϝιουݺͼग़͠

  25. ৑௕ͳϝιουݺͼग़͠Λ΍ΊΔ GVO55JOWPLFE .PDLJUPAXIFOA UIJT  WBM55JOWPLFE0OHPJOH4UVCCJOH5 HFU JOWPLFE ɾ&YUFOTJPO1SPQFSUJFTͰ೚ҙͷΫϥεʹϓϩύςΟΛ෇༩͢Δ ɾϓϩύςΟΞΫηε࣌ʹϝιουݺͼग़͠

    JUFNMFOHUI JOWPLFEUIFO3FUVSO 

  26. Destructuring Declarations

  27. 85' JUFNTPNF.FUIPE BOZ*OU BOZ4USJOH BOZ BOZ  JOWPLFE UIFO"OTXFS\ WBMBJUBSHVNFOUT<>BT*OU

    WBMCJUBSHVNFOUT<>BT4USJOH WBMDJUBSHVNFOUT<>BT*UFN WBMEJUBSHVNFOUT<>BT/BNF EPTPNFUIJOH ^

  28. %FTUSVDUVSJOH%FDMBSBUJPOT Λ࢖ͬͨ୅ೖ WBM B C 1BJS l)FMMPz   Bl)FMMPz

    C

  29. %FTUSVDUVSJOH%FDMBSBUJPOT Λ࢖ͬͨ୅ೖ WBM B C 1BJS l)FMMPz   Bl)FMMPz

    C ಛఆͷϧʔϧʹԊͬͨΫϥεͰ %FTUSVDUVSJOH%FDMBSBUJPOT͕࢖͑Δɻ

  30. %FTUSVDUVSJOH%FDMBSBUJPOTͷϧʔϧ DMBTT'PP\ PQFSBUPSGVODPNQPOFOU 4USJOHʜ PQFSBUPSGVODPNQPOFOU *OUʜ PQFSBUPSGVODPNQPOFOU/ 5ʜ ^ GVOEP4PNFUIJOH

    GPP'PP \ WBM B C GPP ʜ ^ DPNQPOFOU/ ͱ͍͏ϝιουΛඞཁͳ਺͚ͩ࣋ͭ

  31. %BUB$MBTTͰએݴָʑ EBUBDMBTT'PP WBMB4USJOH WBMC*OU GVOEP4PNFUIJOH GPP'PP \ WBM B C

    GPP ʜ ^ %BUB$MBTTͰলུՄೳ

  32. *OWPDBUJPO0O.PDLʹϝιουΛ௥Ճ JOMJOFGVOSFJpFE" SFJpFE# SFJpFE$ *OWPDBUJPO0O.PDLBSHVNFOUT  5SJQMF BSHVNFOUT<>BT" BSHVNFOUT<>BT# BSHVNFOUT<>BT$

  33. *OWPDBUJPO0O.PDLʹϝιουΛ௥Ճ JOMJOFGVOSFJpFE" SFJpFE# SFJpFE$ *OWPDBUJPO0O.PDLBSHVNFOUT  5SJQMF BSHVNFOUT<>BT" BSHVNFOUT<>BT# BSHVNFOUT<>BT$

    JUFNTPNF.FUIPE BOZ*OU BOZ4USJOH BOZ  JOWPLFE UIFO"OTXFS\ WBM B C D JUBSHVNFOUT*OU 4USJOH *UFN  EPTPNFUIJOH ^ :FT

  34. Conclusion

  35. ,PUMJOֶशͱϥΠϒϥϦ࡞੒ ߦఔ౓Ͱ݁ߏ࢖͑Δ΋ͷ͕࡞ΕΔ ϥΠϒϥϦͩͱ"OESPJEͳͲͷϑϨʔϜϫʔΫ ʹ͋·ΓറΒΕͣॻ͚ΔͷͰֶश͕͸͔ͲΔ େମίʔυ͕ճ͘Β͍ม਎͢ΔɻͦͷதͰ,PUMJO ͷ࢓༷΍ػೳ΍ॻ͖ํͳͲʹ͍ͭͯ৭ʑͱ۷ΕΔ ࠷ѱࣺͯΒΕΔ

  36. Let’s Enjoy Kotlin life ϥΠϒϥϦΛ࡞ͬͯ

  37. ͓·͚

  38. ಉ͡Α͏ͳϥΠϒϥϦཚཱ໰୊ ͏ʔΜͲ͏ͨ͠΋ͷ͔

  39. "XFTPNFLPUMJO ͜͜ʹೖΓ͍ͨ໰୊ https://github.com/JavaBy/awesome-kotlin

  40. ؤுΖ͏