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
Block_is_everywhere.pdf
Search
Masafumi Okura
December 11, 2019
Programming
0
86
Block_is_everywhere.pdf
Masafumi Okura
December 11, 2019
Tweet
Share
More Decks by Masafumi Okura
See All by Masafumi Okura
オブジェクトしこう
okuramasafumi
2
160
Debugging Alba
okuramasafumi
1
110
Learning Ruby
okuramasafumi
5
450
How to build a conference for both newbies and seasoned devs
okuramasafumi
1
1.3k
Why doesn't Ruby have Boolean class?
okuramasafumi
4
1.9k
Writing Minitest clone in 30 minutes
okuramasafumi
0
330
Developing a Vim plugin with Ruby
okuramasafumi
0
570
On proposals
okuramasafumi
0
270
5
okuramasafumi
0
190
Other Decks in Programming
See All in Programming
地方こそサーバーレス、その意義に迫るサーバーレスPHP / Serverless PHP: The Rural Areas, and Why Serverless PHP Matters
seike460
PRO
2
110
仕様と実装で学ぶOpenTelemetry
drumato
2
1.1k
JS RPCを理解する
yusukebe
5
280
TypeScriptで使いやすいOpenAPIの書き方
yukimochi_dwango
1
910
The World is a Network (and We Are Just Nodes)
whatyouhide
0
100
FoodGram
iseruuuuu
0
230
The grand strategy of Ruby Parser
yui_knk
5
310
Dev ContainersとTestcontainers
bells17
3
100
『WordPressコミュニティで学ぶ』OSS貢献の多様性
ippey
0
270
GNU Makeの使い方 / How to use GNU Make
kaityo256
PRO
13
4.4k
Findy - エンジニア向け会社紹介 / Findy Letter for Engineers
findyinc
2
74k
TypeScriptとGraphQLで実現する 型安全なAPI実装 / TSKaigi 2024
hokaccha
5
2.8k
Featured
See All Featured
Principles of Awesome APIs and How to Build Them.
keavy
121
16k
4 Signs Your Business is Dying
shpigford
176
21k
Thoughts on Productivity
jonyablonski
60
3.9k
A Tale of Four Properties
chriscoyier
153
22k
Unsuck your backbone
ammeep
664
57k
Build The Right Thing And Hit Your Dates
maggiecrowley
25
2k
Fontdeck: Realign not Redesign
paulrobertlloyd
76
4.9k
Mobile First: as difficult as doing things right
swwweet
217
8.6k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
23
1.7k
Why Our Code Smells
bkeepers
PRO
331
56k
Music & Morning Musume
bryan
41
5.6k
実際に使うSQLの書き方 徹底解説 / pgcon21j-tutorial
soudai
123
39k
Transcript
Block is everywhere Event: LegalForce Ruby Meet Up #1 Date:
2019-12-11 Speaker: େխ࢙
pp self • ໊લɿେխ࢙ • ॴଐɿϑϦʔϥϯε • ΤσΟλɿVim • Α͍͘ΔίϛϡχςΟɿGrow.rbʢओ࠵ʣɺTama.rbͳͲ
RubyͷϒϩοΫૉΒ͍͠
RubyͷϒϩοΫͷΘΕํ
RubyͷϒϩοΫ͕ΘΕ͍ͯΔՕॴ • RailsͷϨΠΞτͷϨϯμϦϯάʢyieldʣ • ֤छgemͷઃఆʢconfigure doʣ • RakeFactoryBotʹද͞ΕΔDSL • Ϧιʔεͷཧ
• ϑοΫͷఆٛ • etc…
RailsͷϨΠΞτͷϨϯμϦϯά • ϨΠΞτϑΝΠϧͷதʹ͋Δ”yield”࣮ϒϩοΫΛධՁ͠ ͍ͯΔ • RailsͷϏϡʔʢςϯϓϨʔτʣ࠷ऴతʹRubyͱ࣮ͯ͠ߦ͞ ΕΔͷͰೖΕࢠΛ࣮ݱ͢ΔͷʹϒϩοΫΛωετ͍ͤͯ͞Δͱ ࢥΘΕΔ • Ұ൪ແҙࣝʹϒϩοΫΛ͍ͬͯΔՕॴͰʁ
֤छgemͷઃఆ • “configure do |config|”ͱ͔ͷΞϨવϒϩοΫΛ͍ͬͯΔ • ίϯϑΟάΦϒδΣΫτʹΞΫηε͢Δͷ͕ײతʹͰ͖Δ • ઃఆ͞ΕΔଆ”config =
Config.new; yield(config)”Έ͍ͨʹ ॻ͚Δ • ࣮ϒϩοΫΛ͏ඞཁͳ͍…ʁ
DSL • DSLΛ࣮͢ΔͷʹϒϩοΫʢͱ͍͏ΑΓProcΦϒδΣΫτ ͱ”instance_eval”ϝιουʣඞਢ • RSpecͩͱϒϩοΫΛ࣮ߦ͢Δͨͼʹಗ໊ΫϥεΛ࡞͍ͯͨ͠ Γ͢Δ • ʮϝλϓϩάϥϛϯάRubyʯͱ͍͏໊ஶΛಡΉͱΈ͕Θ͔Δ
Ϧιʔεͷཧ • “File.open do |f|”͕දత • “Net::HTTP.start do |http|”ͳΜ͔ͦ͏ •
ϝιου͕ϦιʔεΛ࡞͠ɺϒϩοΫ͕ด͡ΔͱϦιʔε ด͡ΒΕΔ
ϑοΫͷఆٛ • RSpecͷ”before(:each)”Railsͷ”before_action”ͳͲ͕දత • ϒϩοΫͷதΛProcΦϒδΣΫτͱͯ࣋ͪ͠ճ͢ • aroundܥͷϑοΫ෦ͰyieldΛݺͿͱຊॲཧ͕ΔͷͰೋ ॏʹϒϩοΫΛ͍ͬͯΔ
ଞʹ৭ʑͳϝιου͕ϒϩοΫΛड͚Δ • Enumerable#countʢϒϩοΫ͕trueͷཁૉΛ͑Δʣ • ActiveRecord::Relation#buildʢϒϩοΫͰΠϯελϯεઃఆʣ • Hash.newʢॳظԽͷํ๏Λنఆʣ • String#gsubʢஔͷํ๏Λنఆʣ
͓·͚
RubyͷϒϩοΫΫϩʔδϟ
पғͷڥʹΞΫηεͰ͖ΔͷͰɺ ৭ʑͱϋοΫ͢Δ͜ͱ͕Ͱ͖Δ
ྫɿΧϯλΦϒδΣΫτ