Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Speaker Deck
PRO
Sign in
Sign up for free
Writing simple and easy DSL with Ruby
Masafumi Okura
January 29, 2022
Programming
1
85
Writing simple and easy DSL with Ruby
https://toyama-eng.connpass.com/event/233459/
Masafumi Okura
January 29, 2022
Tweet
Share
More Decks by Masafumi Okura
See All by Masafumi Okura
Next decade of Rails Girls and the community
okuramasafumi
2
190
Comment that actually works
okuramasafumi
1
48
Porting ruby gem to mgem
okuramasafumi
1
46
For no-rush career
okuramasafumi
3
140
A technique to implement DSL in Ruby
okuramasafumi
0
1.1k
Neovim hearts Ruby
okuramasafumi
0
240
Control methods like a pro
okuramasafumi
1
440
Guessing the future of Rails from what DHH said
okuramasafumi
3
1.3k
Recent Neovim
okuramasafumi
0
100
Other Decks in Programming
See All in Programming
T3 Stack and TypeScript ecosystem
quramy
3
760
Workshop on Jetpack compose
aldefy
0
140
量子コンピュータ時代のプログラミングセミナー / 20230119_Amplify_seminar _shift_optimization
fixstars
0
190
Hono v3 - Do Everything, Run Anywhere, But Small, And Faster
yusukebe
4
130
はてなリモートインターンシップ2022 フロントエンドブートキャンプ 講義資料
hatena
0
120
ちょうぜつ改め21世紀ふつうのソフトウェア設計
tanakahisateru
7
6.4k
An Advanced Introduction to R
nicetak
0
1.8k
Hasura の Relationship と権限管理
karszawa
0
170
OSC大阪 パスワード認証は人類には早すぎる ~ IDaaSを使ったソーシャルログインのすすめ ~
authyasan
7
1.4k
Remote SSHで行うVS Codeリモートホスト開発とトラブルシューティング
smt7174
1
470
ipa-medit: Memory search and patch tool for IPA without Jailbreaking/ipa-medit-bh2022-europe
tkmru
0
130
jq at the Shortcuts
cockscomb
1
420
Featured
See All Featured
The Web Native Designer (August 2011)
paulrobertlloyd
76
2.2k
How GitHub Uses GitHub to Build GitHub
holman
465
280k
Scaling GitHub
holman
453
140k
The Illustrated Children's Guide to Kubernetes
chrisshort
22
43k
Making Projects Easy
brettharned
102
4.8k
Raft: Consensus for Rubyists
vanstee
130
5.7k
The World Runs on Bad Software
bkeepers
PRO
59
5.7k
The Success of Rails: Ensuring Growth for the Next 100 Years
eileencodes
24
4.6k
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
smashingmag
239
19k
Let's Do A Bunch of Simple Stuff to Make Websites Faster
chriscoyier
500
130k
How to name files
jennybc
47
73k
Refactoring Trust on Your Teams (GOTO; Chicago 2020)
rmw
22
1.7k
Transcript
RubyͰ࡞ΔSimpleͰEasyͳ DSL Burikaigi 2022 ϧʔϜϗλϧΠΧ OKURA Masafumi, 2022
Ruby DSL
DSLͱʁ
None
Ҏ߱ͷ”DSL”ʮݴޠDSLʯΛࢦ͢ ͜ͱͱ͠·͢
RubyͰॻ͔ΕͨDSLͷྫʢRubyͰͷར༻ʣ • Rake • RSpec • FactoryBot • Sinatra •
Rails • ίʔϧόοΫɺόϦσʔγϣϯͳͲ
RSpecͷྫʢREADMEΑΓʣ
RubyͰॻ͔ΕͨDSLͷྫʢRuby֎Ͱͷར༻ʣ • Homebrew • Chef • Vagrant • Capistrano
HomebrewͷྫʢZoomͷCaskΑΓʣ
ݴޠDSLͷϝϦοτ • ϓϩάϥϛϯάݴޠͷϑϧػೳ͕͑Δ • มؔ • ಡΉ͚ͩͳΒϓϩάϥϛϯάݴޠͷ͕ࣝෆཁ • ϓϩάϥϛϯάݴޠͱઃఆϑΝΠϧͷ͍͍ͱ͜औΓ
ࣗݾհ • ໊લɿେխ࢙ • ॴଐɿϑϦʔϥϯε • ՝֎׆ಈɿKaigi on RailsνʔϑΦʔΨφΠβʔɺGrow.rb/Entaku.rb ΦʔΨφΠβʔɺAlba࡞ऀ
• ͖ͳRubyͷϝιουɿinstance_evalʢ2લͷൃදΛࢀরʣ
Alba • JSONγϦΞϥΠβʢҙͷΦϒδΣΫτΛJSONʹมʣ • ͍ʢྨࣅͷgemͱൺͯ2൪ʹ͍ʣ • 300ms͔͔͍ͬͯͨAPIΛ100ms·ͰߴԽͨ͠Γ • Ϣʔβʔ͕DSLΛॻ͘ͱAlba͕ͦΕʹैͬͯΦϒδΣΫτ͔ΒଐੑΛऔಘ ͯ͠JSONΛߏங͢Δ
• ৄࡉ https://github.com/okuramasafumi/alba Λࢀর
ࠓͷൃද ͷߏ
ೋ෦ߏ • ୈҰ෦ɿDSLʹؔ͢Δཧతߟ • RubyͱDSLɺϑΣʔζͷͳͲ • ୈೋ෦ɿDSLΛ࡞ͬͯΈΔ • ؆୯ͳDSLΛ࡞ͬͯΈΔ •
࣮͕SimpleͰ͍ํ͕EasyͳDSLΛ࡞Δ • λΠτϧճऩ
ୈҰ෦ɿ DSLʹ͍ͭͯͷ ߟ
ͳͥRubyͰ DSLΛॻ͘ͷ͔
RubyͰDSLΛॻ͘ཧ༝ • τοϓϨϕϧʢRubyͰ”main”ʣʹϝιουΛఆ͍ٛ͢͠ • ϝιουͷׅހ͕লུͰ͖ΔͷͰݟ͕ͨӳจͬΆ͘ͳΓ͍͢ • => ಡΈ͍͢ • ωετͨ͠ϒϩοΫͱ”eval”ϝιουͷΈ߹ΘͤΛ͏͜ͱͰෳ
ࡶͳϩδοΫදݱͰ͖Δ • => ॻ͖͍͢
ٯʹݴ͏ͱ • DSL୯ͳΔϝιουʢಛʹΫϥεϝιουʣ • evalͱϒϩοΫͷ͍ํ͑͞Θ͔ΕDSL࡞ΕΔʂ
Rubyʹ͓͚ΔDSLͷྨʹ͍ͭͯ • “main”ύλʔϯɿ”main”ʹϝιουΛఆٛ͢Δύλʔϯ • Rake, SinatraͳͲ • “include”ύλʔϯɿϞδϡʔϧʹσʔλͱϩδοΫΛू͠ɺ`include``extend`͠ ͨΫϥε͕ͦΕʹΞΫηεͰ͖Δύλʔϯ •
Railsͷଟ͘ͷDSL • ಠཱύλʔϯɿϞδϡʔϧΛ`include`͠ͳͯ͘DSLΛ͑Δ • RSpec, FactoryBotͳͲ
DSLͷ্࣮ͷίπ • ʮఆٛɾొʯʮࢦఆʯʮ࣮ߦʯͷϑΣʔζ͕͔Ε͍ͯΔͨΊɺ͜ ΕΒΛ͔ͬ͠Γ্ͭͭ͠खʹ݁߹͢Δ • ʮఆٛɾొʯϑΣʔζͰʮ࣮ߦʯϑΣʔζͰߦ͍͍ͨ͜ͱΛొ ͍ͯ͘͠ • ʮࢦఆʯϑΣʔζͰʮఆٛɾొʯ͞Εͨͷ͔Βࠓճద༻͍ͨ͠ ͷΛࢦఆ͢Δ
• ʮ࣮ߦʯϑΣʔζͰʮࢦఆʯ͞ΕͨͷΛ࣮ߦ͢Δ
ݱ࣮ͷDSLʹ͓͚ΔϑΣʔζͷ ఆٛ ࢦఆ ࣮ߦ 3BLF UBTL EFGBVMUͳͲ SBLFίϚϯυ 34QFD EFTDSJCF
JUͳͲ STQFDίϚϯυ 3BJMTόϦσʔγϣϯ A"DUJWF.PEFM7BMJEBUPSAΫ ϥεΛܧঝͨ͠Ϋϥεͷ࡞ WBMJEBUFTϝιου WBMJE ϝιου "MCB A"MCB3FTPVSDFAϞδϡʔϧ ΛAJODMVEFA͔ͯ͠Β ABUUSJCVUFTAͳͲ Ϋϥεબ TFSJBMJ[Fϝιου
ࠓճ࡞ΔDSLʹ͍ͭͯ • Γ͍ͨ͜ͱɿRailsͷόϦσʔγϣϯͷ؆қ൛ • ࣮ɿϞδϡʔϧΛ`include`͢ΔͱɺΫϥεϝιουͷ`.validates`ͱ Πϯελϯεϝιουͷ`#validate`͕ར༻ՄೳʹͳΔ • `.validates`ʹόϦσʔλͷ໊લͱΦϓγϣϯΛ͢ɺ͢ΔͱόϦ σʔλ͕Ϋϥεʹొ͞ΕΔ •
`#validate`ࣗͷΫϥεʹొ͞ΕͨόϦσʔλΛ࣮ߦ͢Δ
ʢଓʣࠓճ࡞ΔDSLʹ͍ͭͯ • ॳظঢ়ଶͰόϦσʔλ͕ଘࡏ͠ͳ͍ͨΊɺ`.validator`ϝιουͰఆ ͍ٛͯ͘͠ • ޙͰ`.validates`Ͱࢦఆ͢ΔͨΊͷ໊લͱɺϩδοΫʢόϦσʔγϣ ϯͷ༰ʣΛఆٛ͢Δ • ϩδοΫϒϩοΫͰఆٛ͢Δɺ͜ͷͱ͖ରͷΦϒδΣΫτͱඞ ཁͳʢ͞ΛόϦσʔτ͢ΔͳΒͦͷࣈʣΛड͚औΔ
͓·͚ͷߟ • ϓϩάϥϛϯάͰʮߏʯͱʮৼΔ͍ʯͷ2͕ͭॏཁ • cf. σβΠϯύλʔϯͷྨ • ʮఆٛɾొʯͱʮࢦఆʯߏͰʮ࣮ߦʯৼΔ͍ • ߏ੩తͰৼΔ͍ಈతɺͱ͍͑Δ
• DSLΛ͏ͱߏͱৼΔ͍ΛࣗવʹͰ͖ͯݟ௨͕͠ྑ͘ͳΔ
ୈೋ෦ɿ ࣮ࡍʹDSLΛ ࡞ͬͯΈΑ͏ʂ
ΤσΟλ͕։ ͖·͢