Slide 1
Slide 1 text
MobiRuby
iOS + Ruby = Super Awesome!!
Thursday, February 14, 13
Slide 2
Slide 2 text
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
Slide 3
Slide 3 text
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
Slide 4
Slide 4 text
mruby
Thursday, February 14, 13
Slide 5
Slide 5 text
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
Slide 6
Slide 6 text
Configurable
• Drop off unnecessary features
• Parser / Compiler
• Struct, Time, Math, STDIO, Regexp, sprintf
• Table algorithm - hash or list
• NaN Boxing
Thursday, February 14, 13
Slide 7
Slide 7 text
mruby target
• Embedded
• Digital Appliance
• Game console
• Vendor machine
• Bundle with applications
Thursday, February 14, 13
Slide 8
Slide 8 text
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
Slide 9
Slide 9 text
development
• Spring 2010 - Subsidy
• Matz, some companies and colleges
• April 22, 2012 - Publish to GitHub
• mruby got some contributors
Thursday, February 14, 13
Slide 10
Slide 10 text
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
Slide 11
Slide 11 text
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
Slide 12
Slide 12 text
Thursday, February 14, 13
Slide 13
Slide 13 text
Thursday, February 14, 13
Slide 14
Slide 14 text
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
Slide 15
Slide 15 text
Thursday, February 14, 13
Slide 16
Slide 16 text
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
Slide 17
Slide 17 text
Vision
• Provide Ruby power to Mobile devices
• Meta programming is most important Ruby
power
Thursday, February 14, 13
Slide 18
Slide 18 text
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
Slide 19
Slide 19 text
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
Slide 20
Slide 20 text
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
Slide 21
Slide 21 text
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
Slide 22
Slide 22 text
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
Slide 23
Slide 23 text
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
Slide 24
Slide 24 text
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
Slide 25
Slide 25 text
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
Slide 26
Slide 26 text
MobiRuby stack
iOS
mruby
mruby-
cfunc
Your code
mruby-
cocoa
mobiruby-
common
mobiruby-
ios
Thursday, February 14, 13
Slide 27
Slide 27 text
MobiRuby stack
iOS
mruby
mruby-
cfunc
Your code
mruby-
cocoa
mobiruby-
common
mobiruby-
ios
Thursday, February 14, 13
Slide 28
Slide 28 text
MobiRuby stack
iOS
mruby
mruby-
cfunc
Your code
mruby-
cocoa
mobiruby-
common
mobiruby-
ios
Thursday, February 14, 13
Slide 29
Slide 29 text
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
Slide 30
Slide 30 text
mruby-cfunc
str = "STRING"
CFunc::call(CFunc::Void, "puts", str)
STRING
Thursday, February 14, 13
Slide 31
Slide 31 text
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
Slide 32
Slide 32 text
mruby-cfunc
\
class TestStruct < CFunc::Struct
define CFunc::SInt8, :x,
CFunc::SInt16, :y
end
test = TestStruct.new
test[:x] = 10
Thursday, February 14, 13
Slide 33
Slide 33 text
MobiRuby stack
iOS
mruby
mruby-
cfunc
Your code
mruby-
cocoa
mobiruby-
common
mobiruby-
ios
Thursday, February 14, 13
Slide 34
Slide 34 text
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
Slide 35
Slide 35 text
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
Slide 36
Slide 36 text
Memory
management
• Objective-C - Reference count
• mruby - Mark & Sweep
• Swizzled Objective-C “release” method
• awful performance bottleneck
Thursday, February 14, 13
Slide 37
Slide 37 text
MobiRuby stack
iOS
mruby
mruby-
cfunc
Your code
mruby-
cocoa
mobiruby-
common
mobiruby-
ios
Thursday, February 14, 13
Slide 38
Slide 38 text
mobiruby-common
• Will be common utilities with Android ver.
• require method
• Some POSIX based functions
Thursday, February 14, 13
Slide 39
Slide 39 text
MobiRuby stack
iOS
mruby
mruby-
cfunc
Your code
mruby-
cocoa
mobiruby-
common
mobiruby-
ios
Thursday, February 14, 13
Slide 40
Slide 40 text
mobiruby-ios
• iOS specific utilities
• Bootstrap
• Xcode integration
• Wrapped classes
Thursday, February 14, 13
Slide 41
Slide 41 text
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
Slide 42
Slide 42 text
Road map
• Finished building Cocoa bridge
• Fix bugs, Improvement
• Packaging
• Documentation
• Build wrapped APIs
Thursday, February 14, 13
Slide 43
Slide 43 text
Road map
• Finished building Cocoa bridge
• Fix bugs, Improvement
• Packaging
• Documentation
• Build wrapped APIs
Version 1
Q1 2013
Thursday, February 14, 13
Slide 44
Slide 44 text
Road map
• Finished building Cocoa bridge
• Fix bugs, Improvement
• Packaging
• Documentation
• Build wrapped APIs
Version 1
Q1 2013
Thursday, February 14, 13
Slide 45
Slide 45 text
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
Slide 46
Slide 46 text
Pros.
• Ruby power
• Based on Matz implemented Ruby
• mrbgems
• MIT license
• Compact (~4000 lines)
Thursday, February 14, 13
Slide 47
Slide 47 text
Cons.
• Unstable
• Less classes / functions
• Don't have debugging feature
• Need to understand iOS and Cocoa
Thursday, February 14, 13
Slide 48
Slide 48 text
Action!
• Provide Ruby Power to the world
• Create worldwide portfolio
• Talk it at one or two foreign conferences
Thursday, February 14, 13
Slide 49
Slide 49 text
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
Slide 50
Slide 50 text
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