Upgrade to Pro — share decks privately, control downloads, hide ads and more …
Sign up for free

Ruby_through_Reserved_Words.pdf

Sponsored · Ship Features Fearlessly Turn features on and off without deploys. Used by thousands of Ruby developers. →
Avatar for Yukihiro Matsumoto Yukihiro Matsumoto
July 02, 2019
Programming
160
0

 Ruby_through_Reserved_Words.pdf

Avatar for Yukihiro Matsumoto

Yukihiro Matsumoto

July 02, 2019

More Decks by Yukihiro Matsumoto

See All by Yukihiro Matsumoto
30 Years of Ruby
Avatar for Yukihiro Matsumoto matz
0
550
mruby VM
Avatar for Yukihiro Matsumoto matz
0
130
Contribute to Ruby (RubyKaigi 2022)
Avatar for Yukihiro Matsumoto matz
0
300
Ruby after 25 years
Avatar for Yukihiro Matsumoto matz
1
1.5k
What is software made of?
Avatar for Yukihiro Matsumoto matz
0
730
Streem
Avatar for Yukihiro Matsumoto matz
8
3.9k
world-of-languages.pdf
Avatar for Yukihiro Matsumoto matz
8
1.4k
Ruby Everywhere
Avatar for Yukihiro Matsumoto matz
11
120k

Other Decks in Programming

See All in Programming
APNsからLive Activityを開始する話
Avatar for Ryotaro Onoue yumnumm
0
180
Agentic Software Factoryに、すごく賢いIF文を。 / super smart IF statement into the Agentic Software Factory.
Avatar for r-kagaya rkaga
8
2.4k
オーケストレーション記述言語 Katari
Avatar for ゆきくらげ yukikurage
0
200
When benchmarks go bad - what I learned from measuring performance wrong
Avatar for Holly Cummins hollycummins
0
240
【加筆修正版】Laravel のアプリケーションをどこにデプロイするか #phpcon_ehime
Avatar for akase244 akase244
0
160
AI主導のプログラミング学習アプリを作ってみた
Avatar for econanringo econanringo
0
190
パスワード再設定メールのURLについて知っておこう
Avatar for uyuki uyuki234
0
190
月間100万人のサービス刷新で、 技術選定をHonoに振り切った話
Avatar for bara yutobara
8
7k
3回つくってわかった、
定期実行ジョブ基盤の本質情報
Avatar for Naoto Takai takai
4
3.2k
AWS CDKのカスタムリソースでContinuum（旧Security Agent）を実装した話 | Implementing Continuum (formerly Security Agent) via AWS CDK Custom Resource
Avatar for アキキー | Akihisa Ikeda akihisaikeda
2
170
React Native에 현대적인 빌드 도구 더하기: Rollipop 구현기
Avatar for Geunhyeok LEE leegeunhyeok
0
150
當我們開始不讀 Code - AI Agent 時代，Code Review 與 Clean Code 還剩下什麼？
Avatar for James Wang jame2408
1
320

Featured

See All Featured
コードの90%をAIが書く世界で何が待っているのか / What awaits us in a world where 90% of the code is written by AI
Avatar for r-kagaya rkaga
63
47k
Gemini Prompt Engineering: Practical Techniques for Tangible AI Outcomes
Avatar for Mfonobong Umondia mfonobong
2
600
Practical Orchestrator
Avatar for Shlomi Noach shlominoach
192
12k
Beyond borders and beyond the search box: How to win the global "messy middle" with AI-driven SEO
Avatar for David Carrasco davidcarrasco
3
280
Agile that works and the tools we love
Avatar for Rasmus Luckow-Nielsen rasmusluckow
331
22k
Max Prin - Stacking Signals: How International SEO Comes Together (And Falls Apart)
Avatar for Tech SEO Connect techseoconnect
PRO
0
500
Unlocking the hidden potential of vector embeddings in international SEO
Avatar for Frank van Dijk frankvandijk
0
1k
HTML-Aware ERB: The Path to Reactive Rendering @ RubyCon 2026, Rimini, Italy
Avatar for Marco Roth marcoroth
5
850
Heart Work Chapter 1 - Part 1
Avatar for Lake Fama lfama
PRO
10
37k
Are puppies a ranking factor?
Avatar for Jono Alderson jonoalderson
2
4.1k
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
Avatar for Marc Duiker marcduiker
35
2.6k
Highjacked: Video Game Concept Design
Avatar for Ryan Kendrick rkendrick25
PRO
1
490

Transcript

  1. Powered by Rabbit 2.2.1 Ruby through Reserved Words Heroku Ruby

    Association Yukihiro "Matz" Matsumoto まつもとゆきひろ @yukihiro_matz

  2. Powered by Rabbit 2.2.1 　 Ruby has 41 reserved words

  3. Powered by Rabbit 2.2.1 　 Each reflects (early) design decisions

  4. Powered by Rabbit 2.2.1 　 The story behinds the words

  5. Powered by Rabbit 2.2.1 　 begin/end

  6. Powered by Rabbit 2.2.1 　 Comb Style Indentation

  7. Powered by Rabbit 2.2.1 　 Inherited from Eiffel

  8. Powered by Rabbit 2.2.1 　 along with rescue, ensure, retry

  9. Powered by Rabbit 2.2.1 　 break/next/redo

  10. Powered by Rabbit 2.2.1 　 not continue

  11. Powered by Rabbit 2.2.1 　 From Perl (shorter)

  12. Powered by Rabbit 2.2.1 　 class/def

  13. Powered by Rabbit 2.2.1 　 From Python

  14. Powered by Rabbit 2.2.1 　 module

  15. Powered by Rabbit 2.2.1 　 Lisp (Flavors)

  16. Powered by Rabbit 2.2.1 　 Mix-in

  17. Powered by Rabbit 2.2.1 　 if/else/elsif

  18. Powered by Rabbit 2.2.1 　 elsif

  19. Powered by Rabbit 2.2.1 　 elseif, elif, elsif

  20. Powered by Rabbit 2.2.1 　 The shortest pronounceable

  21. Powered by Rabbit 2.2.1 　 then

  22. Powered by Rabbit 2.2.1 　 The stop words

  23. Powered by Rabbit 2.2.1 　 then and class methods

  24. Powered by Rabbit 2.2.1 　 unless

  25. Powered by Rabbit 2.2.1 　 From Perl

  26. Powered by Rabbit 2.2.1 　 No elsif or elsunless

  27. Powered by Rabbit 2.2.1 　 while

  28. Powered by Rabbit 2.2.1 　 Simple loop

  29. Powered by Rabbit 2.2.1 　 for/in

  30. Powered by Rabbit 2.2.1 　 From Python?

  31. Powered by Rabbit 2.2.1 　 until

  32. Powered by Rabbit 2.2.1 　 From Perl

  33. Powered by Rabbit 2.2.1 　 true/false/nil

  34. Powered by Rabbit 2.2.1 　 Truthy and Falsy

  35. Powered by Rabbit 2.2.1 　 Three value model

  36. Powered by Rabbit 2.2.1 　 Inspired by Lisp

  37. Powered by Rabbit 2.2.1 　 and/or/not

  38. Powered by Rabbit 2.2.1 　 From Perl

  39. Powered by Rabbit 2.2.1 　 Only for precedence

  40. Powered by Rabbit 2.2.1 　 do/yield

  41. Powered by Rabbit 2.2.1 　 The block

  42. Powered by Rabbit 2.2.1 　 From CLU (1970s, MIT)

  43. Powered by Rabbit 2.2.1 　 The biggest invention of Ruby

  44. Powered by Rabbit 2.2.1 　 rescue/ensure/retry

  45. Powered by Rabbit 2.2.1 　 Exception handling

  46. Powered by Rabbit 2.2.1 　 Inspired by Eiffel

  47. Powered by Rabbit 2.2.1 　 Icon (1970s, U of Arizona)

  48. Powered by Rabbit 2.2.1 　 Success/Failure model

  49. Powered by Rabbit 2.2.1 　 return

  50. Powered by Rabbit 2.2.1 　 From C

  51. Powered by Rabbit 2.2.1 　 Multiple values (Tuple)

  52. Powered by Rabbit 2.2.1 　 self/super

  53. Powered by Rabbit 2.2.1 　 Smalltalk

  54. Powered by Rabbit 2.2.1 　 alias/undef

  55. Powered by Rabbit 2.2.1 　 From Sather (1980s, UCB)

  56. Powered by Rabbit 2.2.1 　 BEGIN/END

  57. Powered by Rabbit 2.2.1 　 From Awk

  58. Powered by Rabbit 2.2.1 　 Not recommendation anymore

  59. Powered by Rabbit 2.2.1 　 __FILE__/__LINE__

  60. Powered by Rabbit 2.2.1 　 From C (cpp)

  61. Powered by Rabbit 2.2.1 　 __ENCODING__

  62. Powered by Rabbit 2.2.1 　 From Ruby1.9 (encoding)

  63. Powered by Rabbit 2.2.1 　 UCS vs CSI

  64. Powered by Rabbit 2.2.1 　 Unicode

  65. Powered by Rabbit 2.2.1 　 BDFL

  66. Powered by Rabbit 2.2.1 　 Benevolent Dictator For Life

  67. Powered by Rabbit 2.2.1 　 How to make decisions

  68. Powered by Rabbit 2.2.1 　 Scope Background Motivation

  69. Powered by Rabbit 2.2.1 　 Committee

  70. Powered by Rabbit 2.2.1 　 Voting

  71. Powered by Rabbit 2.2.1 　 A ship would climb a

    mountain with many captains

  72. Powered by Rabbit 2.2.1 　 too many cooks spoil the

    broth