mruby & MobiRuby

Transcript

1. MobiRuby iOS + Ruby = Super Awesome!! Thursday, February 14,

   13

2. Hi! I’m @masuidrive. • Yuichiro MASUI - Ichi • Open

   source developer, Ruby fun • Pukiwiki, Ruby on Rails tutorial movie in Japanese, IKEA hacker • Furo-grammer (Coding in hot tub) • FrogApps, Inc. CTO // ex-Appcelerati Thursday, February 14, 13

3. Hi! I’m @masuidrive. • Yuichiro MASUI - Ichi • Open

   source developer, Ruby fun • Pukiwiki, Ruby on Rails tutorial movie in Japanese, IKEA hacker • Furo-grammer (Coding in hot tub) • FrogApps, Inc. CTO // ex-Appcelerati ϛΠϧ Thursday, February 14, 13

4. mruby Thursday, February 14, 13

5. mruby • Ruby for less resources • ISO/JIS compliant •

   CRuby subset. Not included File, Socket, Thread and more ext libraries • OS / CPU Independent • Not required POSIX, only C99 Thursday, February 14, 13

6. Configurable • Drop off unnecessary features • Parser / Compiler

   • Struct, Time, Math, STDIO, Regexp, sprintf • Table algorithm - hash or list • NaN Boxing Thursday, February 14, 13

7. mruby target • Embedded • Digital Appliance • Game console

   • Vendor machine • Bundle with applications Thursday, February 14, 13

8. mruby internals • VM structure - Multi VM instance •

   No C global variable • Generational incremental GC (Mark&Sweep) • Not thread safe • Build system build on CRuby Thursday, February 14, 13

9. development • Spring 2010 - Subsidy • Matz, some companies

   and colleges • April 22, 2012 - Publish to GitHub • mruby got some contributors Thursday, February 14, 13

10. mrbgems • Daniel (@bovi) created extension package feature at end

    of Nov 2012. • Easy to install from GitHub • Supported cross build • Already provided 40+ gems Thursday, February 14, 13

11. mrbgems • Daniel (@bovi) created extension package feature at end

    of Nov 2012. • Easy to install from GitHub • Supported cross build • Already provided 40+ gems Thursday, February 14, 13

12. Thursday, February 14, 13

13. Thursday, February 14, 13

14. When will you release RiteVM? I want to run it

    on iOS/ Android . It’s mruby. I need more time to make public (probably June) Should I give you access to private repos? Yes! I want to try it! What’s your github account? Thursday, February 14, 13

15. Thursday, February 14, 13

16. What’s MobiRuby? • iOS app development kit on mruby •

    MIT license • Can access native functions • Have plan for Android version • Already released MobiRuby based app • Search “mobiruby” in AppStore on iOS Thursday, February 14, 13

17. Vision • Provide Ruby power to Mobile devices • Meta

    programming is most important Ruby power Thursday, February 14, 13

18. Hello world \ class Cocoa::MyAlertView < Cocoa::UIAlertView define C::Void, :alertView,

    Cocoa::Object, :clickedButtonAtIndex, C::Int do |me, index| if index.to_i == 1 app = Cocoa::UIApplication._sharedApplication urlstr = "http://mobiruby.org" url = Cocoa::NSURL._URLWithString(urlstr) app._openURL url end end end alert = Cocoa::MyAlertView._alloc._initWithTitle "Hello", :message, "I am MobiRuby", :delegate, nil, :cancelButtonTitle, "I know!", :otherButtonTitles, "What's?", nil alert._setDelegate alert alert._show Thursday, February 14, 13

19. Hello world \ class Cocoa::MyAlertView < Cocoa::UIAlertView define C::Void, :alertView,

    Cocoa::Object, :clickedButtonAtIndex, C::Int do |me, index| if index.to_i == 1 app = Cocoa::UIApplication._sharedApplication urlstr = "http://mobiruby.org" url = Cocoa::NSURL._URLWithString(urlstr) app._openURL url end end end alert = Cocoa::MyAlertView._alloc._initWithTitle "Hello", :message, "I am MobiRuby", :delegate, nil, :cancelButtonTitle, "I know!", :otherButtonTitles, "What's?", nil alert._setDelegate alert alert._show Thursday, February 14, 13

20. class Cocoa::MyAlertView < Cocoa::UIAlertView define C::Void, :alertView, Cocoa::Object, :clickedButtonAtIndex, C::Int

    do |me, idx| if idx.to_i == 1 app = Cocoa::UIApplication._sharedApplica urlstr = "http://mobiruby.org" url = Cocoa::NSURL._URLWithString(urlstr) app._openURL url end end end class Cocoa::MyAlertView < Cocoa::UIAlertView define C::Void, :alertView, Cocoa::Object, :clickedButtonAtIndex, C::Int do |me, idx| if idx.to_i == 1 app = Cocoa::UIApplication._sharedApplica urlstr = "http://mobiruby.org" url = Cocoa::NSURL._URLWithString(urlstr) app._openURL url end end end Hello world - 1st half Thursday, February 14, 13

21. class Cocoa::MyAlertView < Cocoa::UIAlertView define C::Void, :alertView, Cocoa::Object, :clickedButtonAtIndex, C::Int

    do |me, idx| if idx.to_i == 1 app = Cocoa::UIApplication._sharedApplica urlstr = "http://mobiruby.org" url = Cocoa::NSURL._URLWithString(urlstr) app._openURL url end end end Hello world - 1st half class Cocoa::MyAlertView < Cocoa::UIAlertView Thursday, February 14, 13

22. class Cocoa::MyAlertView < Cocoa::UIAlertView define C::Void, :alertView, Cocoa::Object, :clickedButtonAtIndex, C::Int

    do |me, idx| if idx.to_i == 1 app = Cocoa::UIApplication._sharedApplica urlstr = "http://mobiruby.org" url = Cocoa::NSURL._URLWithString(urlstr) app._openURL url end end end define C::Void, :alertView, Cocoa::Object, :clickedButtonAtIndex, C::Int do |me, idx| Hello world - 1st half Thursday, February 14, 13

23. Hello world - 2nd half \ alert = Cocoa::MyAlertView._alloc. _initWithTitle

    "Hello", :message, "I am MobiRuby", :delegate, nil, :cancelButtonTitle, "I know!", :otherButtonTitles, "What's?", nil alert._setDelegate alert alert._show alert = Cocoa::MyAlertView._alloc. _initWithTitle "Hello", :message, "I am MobiRuby", :delegate, nil, :cancelButtonTitle, "I know!", :otherButtonTitles, "What's?", nil alert._setDelegate alert alert._show Thursday, February 14, 13

24. Hello world - 2nd half \ alert = Cocoa::MyAlertView._alloc. _initWithTitle

    "Hello", :message, "I am MobiRuby", :delegate, nil, :cancelButtonTitle, "I know!", :otherButtonTitles, "What's?", nil alert._setDelegate alert alert._show alert = Cocoa::MyAlertView._alloc. _initWithTitle "Hello", :message, "I am MobiRuby", :delegate, nil, :cancelButtonTitle, "I know!", :otherButtonTitles, "What's?", nil alert._setDelegate alert alert._show Thursday, February 14, 13

25. Next step \ class MyAlertView < MobiRuby::AlertView title "Hello" message

    "I am MobiRuby" cancelButton "I know!" do end button "What's?" do openURL "http://mobiruby.org" end end alert = MyAlertView.new alert.show Thursday, February 14, 13

26. MobiRuby stack iOS mruby mruby- cfunc Your code mruby- cocoa

    mobiruby- common mobiruby- ios Thursday, February 14, 13

27. MobiRuby stack iOS mruby mruby- cfunc Your code mruby- cocoa

    mobiruby- common mobiruby- ios Thursday, February 14, 13

28. MobiRuby stack iOS mruby mruby- cfunc Your code mruby- cocoa

    mobiruby- common mobiruby- ios Thursday, February 14, 13

29. mruby-cfunc • C function bridge for mruby • Call C

    based function directly • Based on libFFI • Same as Ruby/DL library on CRuby Thursday, February 14, 13

30. mruby-cfunc str = "STRING" CFunc::call(CFunc::Void, "puts", str) STRING Thursday, February

    14, 13

31. mruby-cfunc str = "STRING" ptr = CFunc::Pointer.malloc(7) result_ptr = CFunc::call(CFunc::Pointer,

    "strcpy", ptr, str) ptr.to_s -> “STRING” Thursday, February 14, 13

32. mruby-cfunc \ class TestStruct < CFunc::Struct define CFunc::SInt8, :x, CFunc::SInt16,

    :y end test = TestStruct.new test[:x] = 10 Thursday, February 14, 13

33. MobiRuby stack iOS mruby mruby- cfunc Your code mruby- cocoa

    mobiruby- common mobiruby- ios Thursday, February 14, 13

34. mruby-cocoa • Cocoa bridge for mruby • Use Cocoa functions

    transparently • Based on mruby-cfunc and Cocoa runtime • Manipulate Cocoa objects • Create class/instance, inherit existing classes • Garbage collection Thursday, February 14, 13

35. Bridge Cocoa runtime • Objective-C has powerful runtime features •

    Create and modify class dynamically • ObjC class <- Ruby class <- ObjC class • ObjC value interconverted with Ruby value • Supported delegate and blocks Thursday, February 14, 13

36. Memory management • Objective-C - Reference count • mruby -

    Mark & Sweep • Swizzled Objective-C “release” method • awful performance bottleneck Thursday, February 14, 13

37. MobiRuby stack iOS mruby mruby- cfunc Your code mruby- cocoa

    mobiruby- common mobiruby- ios Thursday, February 14, 13

38. mobiruby-common • Will be common utilities with Android ver. •

    require method • Some POSIX based functions Thursday, February 14, 13

39. MobiRuby stack iOS mruby mruby- cfunc Your code mruby- cocoa

    mobiruby- common mobiruby- ios Thursday, February 14, 13

40. mobiruby-ios • iOS specific utilities • Bootstrap • Xcode integration

    • Wrapped classes Thursday, February 14, 13

41. Wrapped APIs \ class MyAlertView < MobiRuby::AlertView title "Hello" message

    "I am MobiRuby" cancelButton "I know!" do end button "What's?" do openURL "http://mobiruby.org" end end alert = MyAlertView.new alert.show Thursday, February 14, 13

42. Road map • Finished building Cocoa bridge • Fix bugs,

    Improvement • Packaging • Documentation • Build wrapped APIs Thursday, February 14, 13

43. Road map • Finished building Cocoa bridge • Fix bugs,

    Improvement • Packaging • Documentation • Build wrapped APIs Version 1 Q1 2013 Thursday, February 14, 13

44. Road map • Finished building Cocoa bridge • Fix bugs,

    Improvement • Packaging • Documentation • Build wrapped APIs Version 1 Q1 2013 Thursday, February 14, 13

45. Current status • Already MobiRuby based app is in AppStore

    • Finally released alpha 1 • Can call almost iOS native functions • Writing test codes • It's only for iOS and mruby hackers Thursday, February 14, 13

46. Pros. • Ruby power • Based on Matz implemented Ruby

    • mrbgems • MIT license • Compact (~4000 lines) Thursday, February 14, 13

47. Cons. • Unstable • Less classes / functions • Don't

    have debugging feature • Need to understand iOS and Cocoa Thursday, February 14, 13

48. Action! • Provide Ruby Power to the world • Create

    worldwide portfolio • Talk it at one or two foreign conferences Thursday, February 14, 13

49. Questions? • If you have more questions, please tweet to

    @mobiruby or post to github issues. • http://twitter.com/mobiruby • http://github.com/mobiruby Thursday, February 14, 13

50. Thank you • Logo design: Maylis Agniel • English review:

    @tenderlove and ebi-chan • http://mobiruby.org • http://github.com/mobiruby • http://twitter.com/mobiruby • http://fb.me/mobiruby Thursday, February 14, 13