mruby & MobiRuby

Transcript

1. MobiRuby
   iOS + Ruby = Super Awesome!!
   Thursday, February 14, 13
   

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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
   

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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
   

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4. mruby
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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
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6. Configurable
   • Drop off unnecessary features
   • Parser / Compiler
   • Struct, Time, Math, STDIO, Regexp, sprintf
   • Table algorithm - hash or list
   • NaN Boxing
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7. mruby target
   • Embedded
   • Digital Appliance
   • Game console
   • Vendor machine
   • Bundle with applications
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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
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9. development
   • Spring 2010 - Subsidy
   • Matz, some companies and colleges
   • April 22, 2012 - Publish to GitHub
   • mruby got some contributors
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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
    

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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
    

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12. Thursday, February 14, 13
    

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13. Thursday, February 14, 13
    

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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
    

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15. Thursday, February 14, 13
    

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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
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17. Vision
    • Provide Ruby power to Mobile devices
    • Meta programming is most important Ruby
    power
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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
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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
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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
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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
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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
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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
    

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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
    

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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
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26. MobiRuby stack
    iOS
    mruby
    mruby-
    cfunc
    Your code
    mruby-
    cocoa
    mobiruby-
    common
    mobiruby-
    ios
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27. MobiRuby stack
    iOS
    mruby
    mruby-
    cfunc
    Your code
    mruby-
    cocoa
    mobiruby-
    common
    mobiruby-
    ios
    Thursday, February 14, 13
    

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28. MobiRuby stack
    iOS
    mruby
    mruby-
    cfunc
    Your code
    mruby-
    cocoa
    mobiruby-
    common
    mobiruby-
    ios
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29. mruby-cfunc
    • C function bridge for mruby
    • Call C based function directly
    • Based on libFFI
    • Same as Ruby/DL library on CRuby
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30. mruby-cfunc
    str = "STRING"
    CFunc::call(CFunc::Void, "puts", str)
    STRING
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31. mruby-cfunc
    str = "STRING"
    ptr = CFunc::Pointer.malloc(7)
    result_ptr = CFunc::call(CFunc::Pointer,
    "strcpy", ptr, str)
    ptr.to_s
    -> “STRING”
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32. mruby-cfunc
    \
    class TestStruct < CFunc::Struct
    define CFunc::SInt8, :x,
    CFunc::SInt16, :y
    end
    test = TestStruct.new
    test[:x] = 10
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33. MobiRuby stack
    iOS
    mruby
    mruby-
    cfunc
    Your code
    mruby-
    cocoa
    mobiruby-
    common
    mobiruby-
    ios
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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
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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
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36. Memory
    management
    • Objective-C - Reference count
    • mruby - Mark & Sweep
    • Swizzled Objective-C “release” method
    • awful performance bottleneck
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37. MobiRuby stack
    iOS
    mruby
    mruby-
    cfunc
    Your code
    mruby-
    cocoa
    mobiruby-
    common
    mobiruby-
    ios
    Thursday, February 14, 13
    

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38. mobiruby-common
    • Will be common utilities with Android ver.
    • require method
    • Some POSIX based functions
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39. MobiRuby stack
    iOS
    mruby
    mruby-
    cfunc
    Your code
    mruby-
    cocoa
    mobiruby-
    common
    mobiruby-
    ios
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40. mobiruby-ios
    • iOS specific utilities
    • Bootstrap
    • Xcode integration
    • Wrapped classes
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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
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42. Road map
    • Finished building Cocoa bridge
    • Fix bugs, Improvement
    • Packaging
    • Documentation
    • Build wrapped APIs
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43. Road map
    • Finished building Cocoa bridge
    • Fix bugs, Improvement
    • Packaging
    • Documentation
    • Build wrapped APIs
    Version 1
    Q1 2013
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44. Road map
    • Finished building Cocoa bridge
    • Fix bugs, Improvement
    • Packaging
    • Documentation
    • Build wrapped APIs
    Version 1
    Q1 2013
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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
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46. Pros.
    • Ruby power
    • Based on Matz implemented Ruby
    • mrbgems
    • MIT license
    • Compact (~4000 lines)
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47. Cons.
    • Unstable
    • Less classes / functions
    • Don't have debugging feature
    • Need to understand iOS and Cocoa
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48. Action!
    • Provide Ruby Power to the world
    • Create worldwide portfolio
    • Talk it at one or two foreign conferences
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49. Questions?
    • If you have more questions, please tweet to
    @mobiruby or post to github issues.
    • http://twitter.com/mobiruby
    • http://github.com/mobiruby
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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
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