Boast Code Party | RubyKaigi 2025 After Event

コード懇親会自慢大会 Boast Code Party|RubyKaigi 2025アフターイベントに登壇した際の資料です。
https://andpad.connpass.com/event/352071/

Transcript

1. 2025/05/12 hashimoto-kei ίʔυ࠙਌ձ ࣗຫେձ Boast Code Party
2. ࣗݾ঺հ Let me introduce myself.
3. ໊લɿhashimoto-kei name: hashimoto-kei
4. ग़਎ɿ෱Ԭ birthplace: Fukuoka City
5. ॴଐɿελʔτΞοϓ@෱Ԭ belong_to: startup at Fukuoka
6. ݞॻɿݚڀһ position: researcher
7. ࢓ࣄɿΤϯδχΞ work: engineer
8. ٕज़ελοΫɿPython, AWS technology stack: Python, AWS
9. ۀ຿Ͱ Ruby Λ࢖ͬͨܦݧͳ͠ I have never used Ruby in work.
10. ԿͰ RubyKaigi ʹʁ Why did I Attend RubyKaigi ?
11. FBC ͱ͍͏ίϛϡχςΟ I’m a member of FBC, which is Ruby community.
12. Ruby ͕޷͖ʹͳͬͨ I get to like Ruby.
13. neko+ ͞Μʹ νέοτΛৡ͍͍ͬͯͨͩͨ neko+ san geve me a ticket of Rubykaigi.
14. ຊ౰ʹײँ͍ͯ͠·͢🙇 Thank you for neko+ san !
15. ίʔυ࠙਌ձ Code Party
16. ςʔϚબͼ Which theme to choose
18. ޷͖ͳຊɿNand2Tetris favorite book: Nand2Tetris
19. ݴޠॲཧܥ͕޷͖ʹͳͬͨ Reading this book, I get to like programming language processor.
20. બΜͩςʔϚ Themes I chose are…
21. CRuby
22. mruby
23. ͔͠͠ɺͲͷςʔϚΛબΜͩ ͔๨Ε͍ͯͨ But I forgot which theme I chose.
24. RubyKaigi 2025
25. Day 0
26. ϑΟϤϒʔϋ΢εʹͯ At Fjord Boot Camp House, which was provided by FBC…
27. ϫΠϫΠ࿩͍ͯͨ͠Β When we enjoyed talking, someone said…
28. ʮίʔυ࠙਌ձͷάϧʔϓ GitHub ͰݟΕ·͢Αʯ “You can see the groups of Code Party.”
29. ֬ೝ͢Δͱ I confirmed…
31. mruby by Matz
32. ΊͪΌͪ͘Όخ͍͠ 
 I was very happy.
33. ͚ͩͲ But…
34. ͪΐͬͱෆ҆ I was a little nervous.
35. mruby ͷཧղ My understanding of mruby
36. ʮmruby ͸…ʯ “mruby is…”
37. ʮCRuby Ͱ͸ͳ͍ॲཧܥͷҰͭʯ “one of non-CRuby processors.”
38. ʮলϝϞϦʯ “Low memory.”
39. ʮҎ্ʯ “That’s all.”
40. ղ૾౓͕௿͗͢Δ…😭 
 My understanding of mruby is poor.
41. ʮMatz ͱ࿩ͤΔνϟϯε͕…ʂ ͜ͷ··ͩͱஔ෺🗿ʹ…ʂʯ “I don't want to waste the chance to talk with Matz.”
42. 🔥 I was very motivated.
43. Day 1
44. Θ͔Βͳ͍͜ͱͩΒ͚ I didn’t know almost all about mruby.
45. mruby ?
46. mruby/c ?
47. PicoRuby ?
48. 😭 Confusing…
49. ϑΟϤϒʔϋ΢εʹͯ At Fjord Boot Camp House
50. AM 2:00 ·Ͱ until 2:00 a.m.
51. udzura ͞Μͷࢿྉ we read documents by udzura san.
52. Rubyͷத਎ͷ༧උ஌ࣝ_RubyK a igiͷલʹ஌Γୄʂ_ެ։༻ https://docs.google.com/present a tion/d/1oFvP4W3Ox8uiGXsW a 3ibyDg a 1cpLguVZhwCjpD46hFU/ mobilepresent?slide=id.g3389fccf211_0_100)
53. ϫΠϫΠΨϠΨϠ We enjoyed discussing Ruby’s processor.
54. ָ͍͠🥳 Very fun!
55. ਭ຾ෆ଍😭 lack of sleep…
56. Day 2
57. CRuby ͷ VM CRuby’s VM is…
58. ελοΫϚγϯ based on stack machine.
59. mruby ͷ VM muby’s VM is…
60. ϨδελϚγϯ ? based on register machine ?
61. 😭😭 Difficult…
62. ϑΟϤϒʔϋ΢εʹͯ At Fjord Boot Camp House
63. AM 2:00 ·Ͱ until 2:00 a.m.
64. udzura ͞Μͷࢿྉ we read documents by udzura san.
65. ϫΠϫΠΨϠΨϠ We enjoyed discussing Ruby’s processor.
66. ָ͍͠🥳 Very fun!
67. ѹ౗తਭ຾ෆ଍😭 overwhelming lack of sleep…
68. 😷
69. Day 3
70. mruby
71. mruby/c
72. PicoRuby
73. MicroRuby ???
74. 😭😭😭 Very Confusing…
75. ʮԿ͕෼͔Βͳ͍͔ʯ͕෼͔Δ I knew what I didn’t know.
76. ίʔυ࠙਌ձ Code Party
77. ձ৔ʹண͘ͱ When I got to the hall,
78. ྡʹ͸ͳΜͱ Matz ͕…ʂ Matz was next to me !
79. Matz ͕ॲཧܥͷ࿩Λͯ͘͠ΕΔ Matz talked to us about Ruby’s processors.
80. ͱͯ΋ָ͍͠🥳 Very fun!!
81. ڭ͑ͯ΋Βͬͨ͜ͱ 2 બ Two things I was told by Matz.
82. 1.
83. mruby family
84. ͦͷҧ͍ The differences
85. ύʔαͱ VM ͕ 2 ͭͣͭ͋Δ There are two parsers and two VMs.
86. ͳͷͰɺ ૊Έ߹Θͤ͸ 4 ύλʔϯ So, there are four patterns of combinations.
88. Χλϧγε😭 I was very impressed.
89. 2.
90. VM ࣮૷ VM implementations
91. CRuby ͸ελοΫϚγϯ CRuby’s VM is based on stack machine.
92. muby ͸ϨδελϚγϯ mruby’s VM is based on register machine.
93. ͦͷҧ͍ The difference
94. ελοΫϚγϯͩͱ… For stack machines…
95. 1 + 2 * 3
96. push 1 push 2 push 3 multiple add pop
97. ͋·ΓೖΕସ͑ΒΕͳ͍ We cannot replace codes much.
98. push 1 -> push 3 -> push 2 multiple add pop
99. ϨδελϚγϯͩͱ… For register machines…
100. load R1, 1 load R2, 2 load R3, 3 multiple R2, R3 add R1, R2 return R1
101. ΘΓͱೖΕସ͑ΒΕΔ We can replace codes much.
102. -> load R2, 2 -> load R3, 3 -> multiple R2, R3 -> load R1, 1 add R1, R2 return R1
103. ϨδελΛࢦఆ͠ͳ͍ͱ͍͚ͳ͍ͷͰ ͦͷ෼͚ͩόΠτίʔυ͕େ͖͘ͳΔ Size of byte code gets bigger than stack machine, because it needs to specify registers.
104. Χλϧγε😭 I was very impressed.
105. End…?
106. Matz ͷ࿩͸·ͩଓ͘… Matz continued to talk…
107. ʮϨδελϚγϯʹ͸ ࠓݴͬͨΑ͏ͳϝϦοτͱ σϝϦοτ͕͋ΔΜ͚ͩͲɺʯ “Register machine has Pros and Cons as I just said…”
108. ʮmruby Ͱ͸৽͍͜͠ͱΛ ΍ͬͯΈ͔ͨͬͨʯ “When I created mruby, I wanted to try something new.”
109. ͱͯ΋ָͦ͠͏ʹඍসΜͰ͍ͨ Matz smiled.
110. Ruby ͷ͜ͱ͕΋ͬͱ஌Γ͍ͨ I get to like Ruby more, and want to know it more.
112. ΈΜͳͰϫΠϫΠָ͠Έͳ͕Β Ruby ͷ͜ͱΛ஌Γ͍ͨ I want to enjoy talking about and learning Ruby’s language processor.
113. This is my Kaigi Effect.
114. Thank you for listening!