Matz - Be a language designer

Matz先生在RubyConfChina2012上的主题分享PPT。

1. Powered by Rabbit 1.0.8 Be a language designer Yukihiro "Matz" Matsumoto @yukihiro_matz
2. Powered by Rabbit 1.0.8 　 Ruby started February 1993 1/185
3. Powered by Rabbit 1.0.8 　 as a scripting language for UNIX 2/185
4. Powered by Rabbit 1.0.8 　 to replace Perl 3/185
5. Powered by Rabbit 1.0.8 　 But not really 4/185
6. Powered by Rabbit 1.0.8 　 I just wanted to create my own language 5/185
7. Powered by Rabbit 1.0.8 　 Just for Fun 6/185
8. Powered by Rabbit 1.0.8 　 Recently, a guy came and blamed me on Twitter 7/185
9. Powered by Rabbit 1.0.8 　 “Why did you invented Ruby, where we had Perl?” 8/185
10. Powered by Rabbit 1.0.8 　 “It was redundant, reinvention of the wheel” 9/185
11. Powered by Rabbit 1.0.8 　 “It was waste of man-power that is limited resource” 10/185
12. Powered by Rabbit 1.0.8 　 “So, many IT people feel negative about your work” 11/185
13. Powered by Rabbit 1.0.8 　 What do you think? 12/185
14. Powered by Rabbit 1.0.8 　 Give me a break 13/185
15. Powered by Rabbit 1.0.8 　 Indeed we have limited resources 14/185
16. Powered by Rabbit 1.0.8 　 Only 7 Billion people on Earth 15/185
17. Powered by Rabbit 1.0.8 　 Very few among them code 16/185
18. Powered by Rabbit 1.0.8 　 But it's not a bottleneck 17/185
19. Powered by Rabbit 1.0.8 　 We have more rare resource 18/185
20. Powered by Rabbit 1.0.8 　 It's Motivation 19/185
21. Powered by Rabbit 1.0.8 　 We are not machines 20/185
22. Powered by Rabbit 1.0.8 　 We need driving force to accomplish great things 21/185
23. Powered by Rabbit 1.0.8 　 What's your motivation? 22/185
24. Powered by Rabbit 1.0.8 　 Fun? 23/185
25. Powered by Rabbit 1.0.8 　 Profit? 24/185
26. Powered by Rabbit 1.0.8 　 My motivation is love toward programming languages 25/185
27. Powered by Rabbit 1.0.8 　 I love all programming languages on earth 26/185
28. Powered by Rabbit 1.0.8 　 Including Fortran 27/185
29. Powered by Rabbit 1.0.8 　 Perl 28/185
30. Powered by Rabbit 1.0.8 　 Even PHP 29/185
31. Powered by Rabbit 1.0.8 　 It might sound spooky 30/185
32. Powered by Rabbit 1.0.8 　 to LOVE programming languages 31/185
33. Powered by Rabbit 1.0.8 　 No one should laugh at motivation 32/185
34. Powered by Rabbit 1.0.8 　 Some may call it reinventing the wheel 33/185
35. Powered by Rabbit 1.0.8 　 Go ahead, if you are motivated 34/185
36. Powered by Rabbit 1.0.8 　 You may invent the better wheel 35/185
37. Powered by Rabbit 1.0.8 　 If not, it's OK. 36/185
38. Powered by Rabbit 1.0.8 　 As long as you follow your motivation 37/185
39. Powered by Rabbit 1.0.8 　 And it will introduce diversity 38/185
40. Powered by Rabbit 1.0.8 　 Diversity is Good 39/185
41. Powered by Rabbit 1.0.8 　 It may require cost 40/185
42. Powered by Rabbit 1.0.8 　 It may waste your time 41/185
43. Powered by Rabbit 1.0.8 　 But the world without diversity is unpleasant 42/185
44. Powered by Rabbit 1.0.8 　 What if we force people to focus on Perl? 43/185
45. Powered by Rabbit 1.0.8 　 Like the world of 1984 44/185
46. Powered by Rabbit 1.0.8 　 Diversity is the cost for innovation 45/185
47. Powered by Rabbit 1.0.8 　 No one understands Innovation 46/185
48. Powered by Rabbit 1.0.8 　 Succeeded people don't 47/185
49. Powered by Rabbit 1.0.8 　 Failed people don't 48/185
50. Powered by Rabbit 1.0.8 　 No one 49/185
51. Powered by Rabbit 1.0.8 　 We try 50/185
52. Powered by Rabbit 1.0.8 　 Again and again 51/185
53. Powered by Rabbit 1.0.8 　 until we make innovation 52/185
54. Powered by Rabbit 1.0.8 　 But we`d better predict the future 53/185
55. Powered by Rabbit 1.0.8 　 To raise the possibility of success 54/185
56. Powered by Rabbit 1.0.8 　 55/185
57. Powered by Rabbit 1.0.8 　 人们做的事情，但昂贵 的小众”和“开发编程 语言和环境，”在未来 的职业生存 by Google Translation 56/185
58. Powered by Rabbit 1.0.8 　 IT survives will be: language designers dev env implementers and high valued niche players 57/185
59. Powered by Rabbit 1.0.8 　 Language designers? 58/185
60. Powered by Rabbit 1.0.8 　 Sounds weird? 59/185
61. Powered by Rabbit 1.0.8 　 His outline: Programming will be fundamental literacy Easy tasks can be done by everybody Professionals (like us) should do harder tasks 60/185
62. Powered by Rabbit 1.0.8 　 Fair enough 61/185
63. Powered by Rabbit 1.0.8 　 But how can we be language designers? 62/185
64. Powered by Rabbit 1.0.8 　 How many language designers do you know? 63/185
65. Powered by Rabbit 1.0.8 　 me (Ruby) 64/185
66. Powered by Rabbit 1.0.8 　 Guido (Python) 65/185
67. Powered by Rabbit 1.0.8 　 Larry (Perl) 66/185
68. Powered by Rabbit 1.0.8 　 Rasmus (PHP) 67/185
69. Powered by Rabbit 1.0.8 　 ? 68/185
70. Powered by Rabbit 1.0.8 　 Language Designer or Serial Killer? 69/185
71. Powered by Rabbit 1.0.8 　 70/185
72. Powered by Rabbit 1.0.8 　 Language designers, raise your hand 71/185
73. Powered by Rabbit 1.0.8 　 Language implementers, raise your hand 72/185
74. Powered by Rabbit 1.0.8 　 It's not as hard as you may think 73/185
75. Powered by Rabbit 1.0.8 　 You may not start making a popular programming language 74/185
76. Powered by Rabbit 1.0.8 　 You may not implement a programming language 75/185
77. Powered by Rabbit 1.0.8 　 How can we be language designers? 76/185
78. Powered by Rabbit 1.0.8 　 You code 77/185
79. Powered by Rabbit 1.0.8 　 You design 78/185
80. Powered by Rabbit 1.0.8 　 You design code 79/185
81. Powered by Rabbit 1.0.8 　 You design API 80/185
82. Powered by Rabbit 1.0.8 　 You design interface 81/185
83. Powered by Rabbit 1.0.8 　 They are languages 82/185
84. Powered by Rabbit 1.0.8 　 Dave Thomas 83/185
85. Powered by Rabbit 1.0.8 　 Programming is a process of designing your own DSL -- Dave Thomas 84/185
86. Powered by Rabbit 1.0.8 　 In that sense, you can be language designers 85/185
87. Powered by Rabbit 1.0.8 　 Too few people care about design 86/185
88. Powered by Rabbit 1.0.8 　 Too many people create software without care 87/185
89. Powered by Rabbit 1.0.8 　 Care about them 88/185
90. Powered by Rabbit 1.0.8 　 Care about your users 89/185
91. Powered by Rabbit 1.0.8 　 Care about your team members 90/185
92. Powered by Rabbit 1.0.8 　 Care about yourself 91/185
93. Powered by Rabbit 1.0.8 　 Care about future yourself 92/185
94. Powered by Rabbit 1.0.8 　 Choose the vocabulary 93/185
95. Powered by Rabbit 1.0.8 　 Mind names you use 94/185
96. Powered by Rabbit 1.0.8 　 Analyze the structure 95/185
97. Powered by Rabbit 1.0.8 　 Block is your friend 96/185
98. Powered by Rabbit 1.0.8 　 Block can represent the strucuture 97/185
99. Powered by Rabbit 1.0.8 　 or scope 98/185
100. Powered by Rabbit 1.0.8 　 Pull Ruby to your domain 99/185
101. Powered by Rabbit 1.0.8 　 Design your DSL 100/185
102. Powered by Rabbit 1.0.8 　 Write small code in your DSL 101/185
103. Powered by Rabbit 1.0.8 　 To experiment 102/185
104. Powered by Rabbit 1.0.8 　 To prototype 103/185
105. Powered by Rabbit 1.0.8 　 To test 104/185
106. Powered by Rabbit 1.0.8 　 To build your final application 105/185
107. Powered by Rabbit 1.0.8 　 Part II 106/185
108. Powered by Rabbit 1.0.8 　 mruby 107/185
109. Powered by Rabbit 1.0.8 　 Matz's 108/185
110. Powered by Rabbit 1.0.8 　 eMbeddable 109/185
111. Powered by Rabbit 1.0.8 　 Minimalistic 110/185
112. Powered by Rabbit 1.0.8 　 Ruby 111/185
113. Powered by Rabbit 1.0.8 　 Ruby for small devices 112/185
114. Powered by Rabbit 1.0.8 　 small memory footprint 113/185
115. Powered by Rabbit 1.0.8 　 Small (<500K) 114/185
116. Powered by Rabbit 1.0.8 　 Embedding API 115/185
117. Powered by Rabbit 1.0.8 　 a la Lua 116/185
118. Powered by Rabbit 1.0.8 　 Soft realtime 117/185
119. Powered by Rabbit 1.0.8 　 Incremental GC 118/185
120. Powered by Rabbit 1.0.8 　 Small devices 119/185
121. Powered by Rabbit 1.0.8 　 SAKURA Board 120/185
122. Powered by Rabbit 1.0.8 SAKURA Board 121/185
123. Powered by Rabbit 1.0.8 　 CPU: RX63N (96MHz) 122/185
124. Powered by Rabbit 1.0.8 　 1MB Flash 123/185
125. Powered by Rabbit 1.0.8 　 128KB RAM 124/185
126. Powered by Rabbit 1.0.8 　 16,800JPY (≒1,300元) 125/185
127. Powered by Rabbit 1.0.8 　 Board LCD Text CD-ROM 126/185
128. Powered by Rabbit 1.0.8 　 127/185
129. Powered by Rabbit 1.0.8 　 128/185
130. Powered by Rabbit 1.0.8 　 129/185
131. Powered by Rabbit 1.0.8 　 Mobile 130/185
132. Powered by Rabbit 1.0.8 　 MobiRuby mruby for iOS 131/185
133. Powered by Rabbit 1.0.8 　 mruby for Android 132/185
134. Powered by Rabbit 1.0.8 　 Server side 133/185
135. Powered by Rabbit 1.0.8 　 mod_mruby Apache mruby extension 134/185
136. Powered by Rabbit 1.0.8 　 mruby_nginx Nginx mruby extension 135/185
137. Powered by Rabbit 1.0.8 　 mruby-libuv Async I/O for mruby 136/185
138. Powered by Rabbit 1.0.8 　 Server side 137/185
139. Powered by Rabbit 1.0.8 　 mruby extensions for languages 138/185
140. Powered by Rabbit 1.0.8 　 JavaScript Lua Go Ruby 139/185
141. Powered by Rabbit 1.0.8 　 Real world app 140/185
142. Powered by Rabbit 1.0.8 　 Solar panel controller 141/185
143. Powered by Rabbit 1.0.8 　 Intelligent Internet router 142/185
144. Powered by Rabbit 1.0.8 　 Vending machine controller 143/185
145. Powered by Rabbit 1.0.8 　 Possibility 144/185
146. Powered by Rabbit 1.0.8 　 Smart appliance 145/185
147. Powered by Rabbit 1.0.8 　 Automobiles 146/185
148. Powered by Rabbit 1.0.8 　 Games 147/185
149. Powered by Rabbit 1.0.8 　 Editors 148/185
150. Powered by Rabbit 1.0.8 　 Cloud 149/185
151. Powered by Rabbit 1.0.8 　 Part III 150/185
152. Powered by Rabbit 1.0.8 　 Ruby 2.0 151/185
153. Powered by Rabbit 1.0.8 　 for Web 2.0 152/185
154. Powered by Rabbit 1.0.8 　 in 1993 153/185
155. Powered by Rabbit 1.0.8 　 Almost 20 years ago 154/185
156. Powered by Rabbit 1.0.8 　 I had been happy for last 20 years 155/185
157. Powered by Rabbit 1.0.8 　 It always had been more than expected 156/185
158. Powered by Rabbit 1.0.8 　 I will try to make the world better place 157/185
159. Powered by Rabbit 1.0.8 　 by making Ruby even better 158/185
160. Powered by Rabbit 1.0.8 　 On February 24th 2013 159/185
161. Powered by Rabbit 1.0.8 　 Ruby's 20th birthday 160/185
162. Powered by Rabbit 1.0.8 　 We will release Ruby 2.0 161/185
163. Powered by Rabbit 1.0.8 　 finally 162/185
164. Powered by Rabbit 1.0.8 　 But it is progressing steadily 163/185
165. Powered by Rabbit 1.0.8 　 It will be faster 164/185
166. Powered by Rabbit 1.0.8 　 It will be more reliable 165/185
167. Powered by Rabbit 1.0.8 　 More fun to use 166/185
168. Powered by Rabbit 1.0.8 　 keyword formal argument 167/185
169. Powered by Rabbit 1.0.8 keyword formal argument def downto(from, to, step: n) ... end 168/185
170. Powered by Rabbit 1.0.8 　 Enumerable#lazy 169/185
171. Powered by Rabbit 1.0.8 Enumerable#lazy (1..Float::INFINITY).lazy.map {|i| i.to_s }.select{|s| /3/ === s }.first(5) 170/185
172. Powered by Rabbit 1.0.8 　 Module#prepend 171/185
173. Powered by Rabbit 1.0.8 Module#prepend class Foo def foo; p :foo; end end module Prepend def foo p :before super p :after end end class Foo prepend Prepend end Foo.new.foo 172/185
174. Powered by Rabbit 1.0.8 　 Refinement 173/185
175. Powered by Rabbit 1.0.8 Refinement module R refine String do def foo ... end end end "".foo # => error! using R "".foo 174/185
176. Powered by Rabbit 1.0.8 　 Come join us 175/185
177. Powered by Rabbit 1.0.8 　 By using trunk 176/185
178. Powered by Rabbit 1.0.8 　 By reporting bugs 177/185
179. Powered by Rabbit 1.0.8 　 By fixing bugs 178/185
180. Powered by Rabbit 1.0.8 　 By sending pull-request 179/185
181. Powered by Rabbit 1.0.8 　 By porting your project to 2.0 180/185
182. Powered by Rabbit 1.0.8 　 We can make it better 181/185
183. Powered by Rabbit 1.0.8 　 We can make the world better 182/185
184. Powered by Rabbit 1.0.8 　 mruby 183/185
185. Powered by Rabbit 1.0.8 　 Happy hacking! 184/185
186. Powered by Rabbit 1.0.8 　 Thank you 185/185