Code Reading
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This document is a presentation in Japanese by Eddie Kao about reading Ruby source code. It introduces Eddie's background in programming languages like Flash, Python, Ruby and iOS development. It discusses reasons for reading source code like learning from core Ruby developers and improving skills. Eddie shares some interesting things he learned from reading Ruby source code like how classes work and method execution. He encourages others to start reading source code without being afraid and hopes more people can become experts.
![proc.call
proc[ ]
proc.yield
proc === 123](https://image.slidesharecdn.com/codereading-131130120630-phpapp02/85/Code-Reading-64-320.jpg)
![people = {
"Eddie" => ["green", "eddie@digik.com.tw"],
"Joanne" => ["yellow", "hello@yahoo.com"]
}
people.map { |name, (color, email)|
puts [name, email]
}](https://image.slidesharecdn.com/codereading-131130120630-phpapp02/85/Code-Reading-71-320.jpg)
![people = {
"Eddie" => ["green", "eddie@digik.com.tw"],
"Joanne" => ["yellow", "hello@yahoo.com"]
}
people.map { |name, (_, email)|
puts [name, email]
}
parse.y#8277-8299 shadowing_lvar_gen( )](https://image.slidesharecdn.com/codereading-131130120630-phpapp02/85/Code-Reading-72-320.jpg)
Code Reading
- 2. 高見 龍 です
- 4. Code Reading Learning more about Ruby by Reading Ruby Source Code Chimpr
- 5. I come from Taiwan photo by Fishtail@Taipei
- 6. photo by J o n a G r a p h Y
- 11. I’m a Flash guy (≈ 8 years) I’m a Python guy (≈ 2 years) I’m a Ruby guy (≈ 4 years) I’m a iOS app guy (≈ 2 years)
- 12. But not a C guy, yet!
- 13. Ruby > Rails
- 14. “I’m a SHOW OFF person”
- 15. “Experience Sharing is fun”
- 16. Current Status 80% iOS app, 20% Ruby/Rails
- 17. 100% Ruby Lover!
- 19. Web Development Conference in Taiwan
- 21. 2 days, 3 tracks session
- 22. 750+ attendees
- 23. all tickets sold out in 4 mins
- 25. Will be held on Jan 2014
- 26. 850+ attendees in 2014, hopefully.
- 27. All about web development
- 28. 楽しい
- 30. Code Reading
- 31. Why read source code? How to start? What I learned? Anything interesting?
- 32. Why read source code ?
- 33. Ian Ruotsala
- 34. “once you start digging around in someone else’s code base, you’ll learn a lot about your own strengths and weaknesses” - Ruby Best Practice http://blog.rubybestpractices.com/posts/gregory/005-code-reading-stdlib.html
- 35. See how the Core Team write Ruby
- 36. Read the source, Luke! photo by chaines106
- 37. source code は友達 source http://kyaraben.seesaa.net/article/168967765.html
- 38. Contribution!
- 40. FUN! :)
- 41. Requirement ?
- 42. C language
- 43. “What if I don’t have any skill of C?”
- 44. “Just Learn It!”
- 46. Where to Start ?
- 47. get source files!
- 48. download from Ruby website, or clone from github
- 49. Ruby 1.9.2 p290
- 52. *c + *h . . *rb (stdlib) .
- 53. Let’s have some fun!
- 55. “ruby.h”
- 56. Object => RObject Class => RClass String => RString Array => RArray Hash => RHash
- 57. “object.c”
- 58. Init_XXXX( )
- 59. “all Class’s class is a Class”
- 60. “new”
- 61. class A def initialize puts "hello" end end a = A.new
- 62. Proc
- 63. How to execute a Proc?
- 65. attributes
- 66. push v.s. <<
- 67. Object ID
- 68. What else?
- 71. people = { "Eddie" => ["green", "[email protected]"], "Joanne" => ["yellow", "[email protected]"] } people.map { |name, (color, email)| puts [name, email] }
- 72. people = { "Eddie" => ["green", "[email protected]"], "Joanne" => ["yellow", "[email protected]"] } people.map { |name, (_, email)| puts [name, email] } parse.y#8277-8299 shadowing_lvar_gen( )
- 73. Method missing
- 76. Conclusion
- 78. “don’t be afraid of source code”
- 79. source code は友達 source http://kyaraben.seesaa.net/article/168967765.html
- 80. References
- 82. “Ruby Under a Microscope” by Pat Shaughnessy http://patshaughnessy.net/ruby-under-a-microscope
- 83. Hope we all can become Jedi Master someday :) Chimpr
- 84. 高見 龍 です
- 85. 以上です。 ご清聴ありがとうございました thanks for your listening :)