RubyConf 2010 - MacRuby: Why and How

Transcript

1. MACRUBY A p p l e ’ s R u

   b y M a t t A i m o n e t t i - R u b y C o n f X - N o v 2 0 1 0 Friday, November 12, 2010

2. ABOUT ME Friday, November 12, 2010

3. Friday, November 12, 2010

4. Hacker Friday, November 12, 2010

5. MacRuby Friday, November 12, 2010

6. http://macruby.labs.oreilly.com/ Friday, November 12, 2010

7. MACRUBY A p p l e ’ s R u

   b y Friday, November 12, 2010

8. MacRuby YARV Parser GC Runtime Stdlib Builtin classes Ruby 1.9

   Friday, November 12, 2010

9. MacRuby LLVM/Roxor Parser Stdlib AOT JIT Obj-C Runtime libobjc libauto

   Builtin Classes CoreFoundation MacRuby Friday, November 12, 2010

10. MacRuby LLVM/Roxor Parser Stdlib AOT JIT Obj-C Runtime libobjc libauto

    Builtin Classes CoreFoundation YARV Parser GC Runtime Stdlib Builtin classes Ruby 1.9 Friday, November 12, 2010

11. MacRuby LLVM Friday, November 12, 2010

12. JIT Compilation MacRuby Friday, November 12, 2010

13. JIT Compilation MacRuby Ruby AST LLVM IR Machine Code CPU

    Transforms the AST into LLVM intermediate representation ... optimizes it ... compiles it to machine code ... and executes it! Very good performance for algorithmic operations Friday, November 12, 2010

14. AOT Compilation MacRuby Friday, November 12, 2010

15. AOT Compilation MacRuby Ruby AST LLVM IR Machine Code Mach-O

    Object File CLI tool or Xcode ... applies more optimizations ... and saves the machine code to disk ... faster bootstrap time Can be used to obfuscate the source code Friday, November 12, 2010

16. NO GIL No Global Interpreter Lock Friday, November 12, 2010

17. GC Thread Thread VM VM VM Core Friday, November 12,

    2010

18. MULTI-THREADED GENERATIONAL GC Friday, November 12, 2010

19. NATIVE ACCESS TO COCOA Friday, November 12, 2010

20. WHEN . TO USE MACRUBY? NOT Friday, November 12, 2010

21. YOU DON’T HAVE A MAC Friday, November 12, 2010

22. LINUX HOSTING Friday, November 12, 2010

23. YOU DON’T WANT TO LEARN Friday, November 12, 2010

24. WHAT’S NEW? Friday, November 12, 2010

25. COCOA DEV IS STABLE Friday, November 12, 2010

26. DNA Sequencing by Hampton Catlin Friday, November 12, 2010

27. AOT COMPILATION Friday, November 12, 2010

28. MacRuby: De nitive Guide Hello World Example Friday, November 12,

    2010

29. framework 'AppKit' class AppDelegate def applicationDidFinishLaunching(notification) voice_type = "com.apple.speech.synthesis.voice.GoodNews" @voice

    = NSSpeechSynthesizer.alloc.initWithVoice(voice_type) end def windowWillClose(notification) puts "Bye!" exit end def say_hello(sender) @voice.startSpeakingString("Hello World!") puts "Hello World!" end end app = NSApplication.sharedApplication app.delegate = AppDelegate.new window = NSWindow.alloc.initWithContentRect([200, 300, 300, 100], styleMask:NSTitledWindowMask|NSClosableWindowMask|NSMiniaturizableWindowMask, backing:NSBackingStoreBuffered, defer:false) window.title = 'MacRuby: The Definitive Guide' window.level = 3 window.delegate = app.delegate button = NSButton.alloc.initWithFrame([80, 10, 120, 80]) button.bezelStyle = 4 button.title = 'Hello World!' button.target = app.delegate button.action = 'say_hello:' window.contentView.addSubview(button) window.display window.orderFrontRegardless app.run hello_world.rb Friday, November 12, 2010

30. $ macrubyc hello_world.rb -o demo $ file demo demo: Mach-O

    64-bit executable x86_64 $ ./demo Compile to machine code Friday, November 12, 2010

31. w00t!! Friday, November 12, 2010

32. Create compiled/ dynamic libraries $ macrubyc file1.rb file2.rb -o shared.dylib

    --dylib $ macrubyc other_project_source.rb shared.dylib -o example $ ./example Friday, November 12, 2010

33. DEBUGGER Friday, November 12, 2010

34. characters = %w{Adama Apollo Baltar Roslin StarBuck Six} def cylon?(character)

    false # buggy detector end characters.each do |character| if cylon?(character) puts "#{character} is a Cylon!" else puts "#{character} is not a cylon." end end Friday, November 12, 2010

35. $ macruby cylon_detector.rb Adama is not a cylon. Apollo is

    not a cylon. Baltar is not a cylon. Roslin is not a cylon. StarBuck is not a cylon. Six is not a cylon. Buggy code :( Friday, November 12, 2010

36. $ macrubyd cylon_detector.rb Starting program. 1! characters = %w{Adama Apollo

    Baltar Roslin StarBuck Six} cylon_detector.rb:1> Debug the detector live Friday, November 12, 2010

37. cylon_detector.rb:1> b cylon_detector.rb:8 if character == 'Six' Added breakpoint 1.

    Added a breakpoint on a speci c le/line based on a condition Friday, November 12, 2010

38. cylon_detector.rb:1> c Adama is not a cylon. Apollo is not

    a cylon. Baltar is not a cylon. Roslin is not a cylon. StarBuck is not a cylon. 8! if cylon?(character) cylon_detector.rb:8> Breaks on condition Friday, November 12, 2010

39. cylon_detector.rb:8> p character => "Six" cylon_detector.rb:8> p cylon?(character) => false

    Bug con rmed :( Friday, November 12, 2010

40. cylon_detector.rb:8> p def cylon?(character) character == 'Six' end ZOMG live

    bug xing! Friday, November 12, 2010

41. cylon_detector.rb:8> c Six is a Cylon! Program exited. w00t!! Friday,

    November 12, 2010

42. GCD API https://github.com/MacRuby/MacRuby/tree/trunk/lib/dispatch/ Friday, November 12, 2010

43. https://github.com/MacRuby/MacRuby/tree/trunk/lib/dispatch/ Threads can be complicated to program :( Friday, November

    12, 2010

44. Global Interpreter Lock VM Friday, November 12, 2010

45. Slow :( Friday, November 12, 2010

46. Full concurrency via multiple processes :( Friday, November 12, 2010

47. Safe data :) Friday, November 12, 2010

48. https://github.com/MacRuby/MacRuby/tree/trunk/lib/dispatch/ MacRuby doesn’t have a global VM lock Friday, November

    12, 2010

49. https://github.com/MacRuby/MacRuby/tree/trunk/lib/dispatch/ MacRuby VM Core VM VM Friday, November 12, 2010

50. Good but not good enough, threads are still a pain

    in the butt! Friday, November 12, 2010

51. https://github.com/MacRuby/MacRuby/tree/trunk/lib/dispatch/ libdispatch Friday, November 12, 2010

52. Let GCD gure out how many threads to use! https://github.com/MacRuby/MacRuby/tree/trunk/lib/dispatch/

    require 'dispatch' job = Dispatch::Job.new { slow_operation } job.value # => “wait for the result” Friday, November 12, 2010

53. Asynchronous API https://github.com/MacRuby/MacRuby/tree/trunk/lib/dispatch/ require 'dispatch' job = Dispatch::Job.new { slow_operation

    } job.value do |v| "asynchronous dispatch when done!" end Friday, November 12, 2010

54. Elegant wrapper API https://github.com/MacRuby/MacRuby/tree/trunk/lib/dispatch/ require 'dispatch' job = Dispatch::Job.new job.add

    { slow_operation(a) } job.add { slow_operation(b) } job.add { slow_operation(c) } job.join job.values # =>[result_a, result_b, result_c] Friday, November 12, 2010

55. Dispatch Enumerable Parallel Iterations https://github.com/MacRuby/MacRuby/tree/trunk/lib/dispatch/ require 'dispatch' geeks.p_each do |user|

    print find_pair(user) end Friday, November 12, 2010

56. https://github.com/MacRuby/MacRuby/tree/trunk/lib/dispatch/ Remember: MacRuby doesn’t have a global VM lock! Friday,

    November 12, 2010

57. https://github.com/MacRuby/MacRuby/tree/trunk/lib/dispatch/ Serial queues: lock free synchronization Friday, November 12, 2010

58. https://github.com/MacRuby/MacRuby/tree/trunk/lib/dispatch/ require 'dispatch' job = Dispatch::Job.new @scores = job.synchronize Hash.new

    [user1, user2, user3].each do |user| job.add \ { @scores[user.name] = calculate(user) } end job.join @scores[user1.name] # => 1042 @scores[user2.name] # => 673 @scores[user3.name] # => 845 Friday, November 12, 2010

59. https://github.com/MacRuby/MacRuby/tree/trunk/lib/dispatch/ require 'dispatch' job = Dispatch::Job.new @scores = job.synchronize Hash.new

    [user1, user2, user3].each do |user| job.add \ { @scores[user.name] = calculate(user) } end job.join @scores[user1.name] # => 1042 @scores[user2.name] # => 673 @scores[user3.name] # => 845 safe proxy object Friday, November 12, 2010

60. CONTROLTOWER http://github.com/MacRuby/ControlTower Friday, November 12, 2010

61. http://github.com/MacRuby/ControlTower Web server for Rack apps Friday, November 12, 2010

62. NEW DISPATCHER Friday, November 12, 2010

63. ONIGURUMA TO ICU Friday, November 12, 2010

64. MORE SOLID FOUNDATIONS Friday, November 12, 2010

65. SUPPORT FOR C BLOCKS Friday, November 12, 2010

66. SANDBOX Friday, November 12, 2010

67. $ macirb --simple-prompt >> require 'open-uri' => true >> begin

    >> Sandbox.no_internet.apply! >> open('http://www.macruby.org') >> rescue SystemCallError => exception >> puts exception >> end Operation not permitted - connect(2) => nil Friday, November 12, 2010

68. •Sandbox.pure_computation •Sandbox.no_internet •Sandbox.no_network •Sandbox.temporary_writes •Sandbox.no_writes 5 default pro les Friday,

    November 12, 2010

69. APP STORE Friday, November 12, 2010

70. Great exposure! Friday, November 12, 2010

71. Better user experience Friday, November 12, 2010

72. Reinvent desktop apps Friday, November 12, 2010

73. /Developer/Examples/Ruby/MacRuby/ What can you do with MacRuby?! Friday, November 12,

    2010

74. Speech Recognizer Friday, November 12, 2010

75. Friday, November 12, 2010

76. CoreLocation Friday, November 12, 2010

77. Friday, November 12, 2010

78. Friday, November 12, 2010

79. Address Book.app Friday, November 12, 2010

80. Friday, November 12, 2010

81. String Tokenizer Friday, November 12, 2010

82. framework 'Foundation' class String def language CFStringTokenizerCopyBestStringLanguage(self, CFRangeMake(0, self.size)) end

    end Call a C function directly Friday, November 12, 2010

83. framework 'Foundation' class String def language CFStringTokenizerCopyBestStringLanguage(self, CFRangeMake(0, self.size)) end

    end ["Bonne année!", "Happy new year!", "¡Feliz año nuevo!", "Felice anno nuovo!", "ةﺪﻴﻌﺳ دﺎﻴﻋأ", "໌͚·͓ͯ͠ΊͰͱ͏͍͟͝·͢ɻ"].each do |msg| puts "#{msg} (#{msg.language})" end Friday, November 12, 2010

84. Bonne année! (fr) Happy new year! (en) ¡Feliz año nuevo!

    (es) Felice anno nuovo! (it) (ar) ةﺪﻴﻌﺳ دﺎﻴﻋأ ໌͚·͓ͯ͠ΊͰͱ͏͍͟͝·͢ɻ (ja) Friday, November 12, 2010

85. Bluetooth Hardware WebKit JS Bridge Friday, November 12, 2010

86. Friday, November 12, 2010

87. http://macruby.org download & dble click No conflict with your Rubies

    Friday, November 12, 2010

88. @merbist http://merbist.com http://macruby.labs.oreilly.com http://github.com/mattetti Friday, November 12, 2010