Ruby, where are you going?

Transcript

1. Ruby, where are you going? Rubyfuza 2013
2. This talk is not about Rack see http://goo.gl/fY5Cw instead
4. Konstantin Haase Open Source Developer github.com/rkh @konstantinhaase
6. Travis CI, Sinatra Rack, Rubinius, Tilt, ...
7. “Second to K&R, the most lagom technical book I’ve read.” Peter Cooper (Ruby Inside) Discount Code: AUTHD 50% off ebook ($6.50) 40% off print
9. tiobe.com
10. 1995 - Yukihiro "Mad Matz" Matsumoto creates Ruby to avert some vaguely unspecified apocalypse that will leave Australia a desert run by mohawked warriors and Tina Turner. The language is later renamed Ruby on Rails by its real inventor, David Heinemeier Hansson.
11. ·ͭ΋ͱΏ͖ͻΖ
20. It’s like Smalltalk. Except it’s not.
21. General Purpose
22. Fully Object Oriented
23. Dynamically Typed
24. Strongly Typed
25. Mature
26. Low Entry Barrier
27. Amazing Community
28. Konstantin Haase Open Source Developer github.com/rkh @konstantinhaase
35. A Language and its Implementation
36. Sometimes it’s hard to separate the two
37. The Language
38. Algol/Ada/ Eiffel like syntax
39. “As an Emacs addict, I needed a language mode, auto-indent was a must. So I tried to write experimental ruby-mode.el. Fighting with emacs lisp and regular expression, for almost whole week, I somehow succeeded to implement auto-indentation for a language with ‘end’ delimiters.” “How Emacs changed my Life” Yukihiro “Matz” Matsumoto
40. Smalltalk like object model message sending, late binding
41. Emacs Lips like internals C-API, tagged pointers, GC, etc
42. What’s new?
43. Refinements marked experimental
44. Module#prepend
45. Keyword Arguments
46. The Implementation
47. One Language, Many Implementations
48. RubyMotion topaz webruby
49. Reference Implementation Ruby 1.9, Ruby 2.0
50. Full Replacements JRuby, Rubinius
51. Niche MagLev, MacRuby, RubyMotion, mRuby
52. Dead or Not There Yet™ everything else
53. Stability Testing, Peer Review, Continuous Integration
55. Performance Virtual Machines, JIT compilation, AOT compilation, Inlining
56. Efficiency Memory Profiling, Copy On Write, Shallow Copies
57. Tooling Debugger, Heap Dumps, VisualVM, Remote Agents
58. Compatibility RubySpec, Ruby Implementers Meeting, ISO/IEC 30170
59. Special Features Embedding, Java/.Net/Smalltalk integration, Hackability, Built in Object DB, ...
60. Ruby Implementers Meeting
61. New Process Proposed Anyone can propose a feature, needs a champion from Ruby Implementers team, needs specification (RubySpec) and documentation, needs consensus
62. “I am not that positive about having rigid process. And I want to make sure as long as I live on this mortal state, you need my approval before adding something as official Ruby. I am not going to stop being the dictator, but I want you guys to participate in the process of improving the language.” Ruby Implementors Meeting, December 2012 Yukihiro “Matz” Matsumoto
63. Virtual Machines
64. Source Code Parser Parse Tree Interpreter Bytecode Compiler Bytecode Interpreter JIT Machine Code CPU VM
66. MRI
67. Rubinius
68. JRuby
69. MRI
70. Since 1.9 Virtual Machine
71. Internal C API = External C API
72. Global Lock
73. Conservative Garbage Collector can lead to segfaults and memory leaks :( but now with a bitmap! :)
74. 2.0 is ABI compatible to 1.9.3
75. Tail Call Recursion
76. No Machine Code Generation :(
77. JRuby
78. invokedynamic teaching the JVM how to dispatch Ruby
79. C-API deprecated use FFI instead
80. No Global Lock
81. Ever improving Java integration
83. Precise GC
84. Rubinius
85. A Hacker’s Dream™
86. 2.0 release soon
87. No Global Lock
88. Zero Overhead Remote Debugging
89. 1.9 (and 2.0) compatibility
90. Windows support
91. Precise GC
92. MagLev
93. Gemstone Smalltalk VM
94. Object DB
95. Amazing Tooling
97. VM not Open Source
98. RubyMotion
99. MacRuby on iOS
100. Shares some code with MRI
101. Not Open Source
102. mRuby
103. Embeddable Ruby based on MRI
104. Developed by Matz
105. AOT Compilation
106. Can run in your browser
107. One More Thing...
111. Source Code Parser Parse Tree Interpreter Bytecode Compiler Bytecode Interpreter JIT Machine Code CPU VM
112. PyPy is different
113. Generates a JIT/AOT from an interpreter
114. Partial Evaluation like lisp macros, but without macros
121. Evaluate Code with Placeholders
122. Once you reach primitives, compile Supported backends: C, CLI (aka .Net), JVM, x86 machine code
123. Partial Evaluation includes Dispatch like inlining
124. Leave Placeholders if Inference is Impossible
125. RPython all placeholders must be inferable can be fully compiled ahead of time
126. Compiled Python is faaaaaast
128. How does this matter for Ruby?
129. RuPyPy
130. RuPyPy released yesterday Topaz
132. Pluggable GC
133. Transparent Object Elimination saves memory, maybe even memory leaks
134. Large parts can be written in Ruby cp -r rubinius/lib topaz/lib
135. Kernel VM MRI JRuby Rubinius MagLev Topaz C C Java Java Ruby C++ Ruby Smalltalk & C Ruby/Python RPython
136. So, Ruby, where are you going?
137. Wherever we take it.
138. Thank you! @konstantinhaase github.com/rkh