My MacRuby talk to the raleigh.rb user group on April 21, 2009.

1. MacRuby
raleigh.rb April 21, 2009
Sean Johnson
Snooty Monkey, LLC

2. first = Job.find_by_company('Clemson University')
second = Job.find_by_company('Strategic Technologies')
startup = Company.new('Venetica')
Company.find_by_name('IBM').acquire(startup)
startup2 = Company.new(:name => '3volve Technology, LLC')
startup2.destroy
startup3 = Company.new(:name => 'Snooty Monkey, LLC')
me.career.to_s

3. Product.create(:name => 'Virtual Access',
:price => 50000, :platform => WIN32)
Product.create(:name => 'Jasper',
:price => 35000, :platform => JAVA)
Product.create(:name => 'VeniceBridge',
:price => 70000, :platform => J2EE)
Product.create(:name => 'IBM OmniFind Yahoo Edition',
:price => 0, :platform => J2EE)
Product.create(:name => 'Live Syllabus', :price => 0,
:platform => RUBY_ON_RAILS)
Product.create(:name => 'BubbleTimer', :price => 20,
:platform => RUBY_ON_RAILS)
Product.create(:name => 'NewsMilk iPhone', :price => 0,
:platform => IPHONE)
Product.create(:name => 'WinTheTrophy',
:price => 0, RUBY_ON_RAILS)
Product.create(:name => 'Time Portal',
:price => 35, MAC_RUBY)
me.products.to_s

4. O Ruby, Ruby,
wherefore art thou
Ruby?

5. YARV Rubinius
MRI
JRuby IronRuby MacRuby

7. Cocoa is better than
Java. It’s 60%
chocolatier.

8. cocoa = ruby_on_rails if you.online?
cocoa = ruby_libraries if you.skool == old
cocoa = j2ee if you.wear?(suits)
cocoa = dot_net if you.evil?
cocoa.analogy.to_s

9. 1985

10. 1985
NeXTSTEP
OPENSTEP

11. 1985
NeXTSTEP
OPENSTEP
1996

12. 1985
NeXTSTEP
OPENSTEP
1996
BSD Mach Kernal +
OPENSTEP Cocoa
= Mac OS X

13. 1985
NeXTSTEP
OPENSTEP
1996
Cocoa
BSD Mach Kernal +
OPENSTEP Cocoa
Foundation AppKit
= Mac OS X

14. Cocoa in 60 seconds

15. Typed
Cocoa in 60 seconds

16. Typed
Late bound
Cocoa in 60 seconds

17. Typed
true == YES
Late bound
Cocoa in 60 seconds

18. Typed
true == YES
Late bound
false == NO
Cocoa in 60 seconds

19. Typed
true == YES
Late bound
false == NO
garbage == collected
Cocoa in 60 seconds

20. Typed
true == YES
Late bound
false == NO
garbage == collected it’s complicated
Cocoa in 60 seconds

21. Typed
true == YES
Late bound
Object == NSObject
false == NO
garbage == collected it’s complicated
Cocoa in 60 seconds

22. String == NSString
Typed
true == YES
Late bound
Object == NSObject
false == NO
garbage == collected it’s complicated
Cocoa in 60 seconds

23. String == NSString
Typed
Hash == NSMutableDictionary
true == YES
Late bound
Object == NSObject
false == NO
garbage == collected it’s complicated
Cocoa in 60 seconds

24. String == NSString
Typed
wordy
Hash == NSMutableDictionary
true == YES
Late bound
Object == NSObject
false == NO
garbage == collected it’s complicated
Cocoa in 60 seconds

25. String == NSString
Typed
wordy
Hash == NSMutableDictionary
true == YES camelCased
Late bound
Object == NSObject
false == NO
garbage == collected it’s complicated
Cocoa in 60 seconds

26. String == NSString
Typed
wordy
Hash == NSMutableDictionary
true == YES camelCased
Late bound
Array == NSMutableArray
Object == NSObject
false == NO
garbage == collected it’s complicated
Cocoa in 60 seconds

27. String == NSString
Typed
wordy
Hash == NSMutableDictionary
true == YES camelCased
Late bound
Array == NSMutableArray
Object == NSObject
nil can do some crazy shit
false == NO
garbage == collected it’s complicated
Cocoa in 60 seconds

28. init returns self String == NSString
Typed
wordy
Hash == NSMutableDictionary
true == YES camelCased
Late bound
Array == NSMutableArray
Object == NSObject
nil can do some crazy shit
false == NO
garbage == collected it’s complicated
Cocoa in 60 seconds

29. init returns self String == NSString
Typed
wordy
Hash == NSMutableDictionary
true == YES camelCased
Late bound
Array == NSMutableArray
Object == NSObject
nil can do some crazy shit
false == NO
garbage == collected it’s complicated
my_object.method1.method2(arg1, arg2)
Cocoa in 60 seconds

30. init returns self String == NSString
Typed
wordy
Hash == NSMutableDictionary
true == YES camelCased
Late bound
Array == NSMutableArray
Object == NSObject
nil can do some crazy shit
false == NO
garbage == collected it’s complicated
my_object.method1.method2(arg1, arg2)
[[myObject message1] message2: arg1 label2: arg2];
Cocoa in 60 seconds

31. init returns self String == NSString
Typed
wordy
Hash == NSMutableDictionary
true == YES camelCased
Late bound
Array == NSMutableArray
Object == NSObject
nil can do some crazy shit
false == NO
garbage == collected it’s complicated
my_object.method1.method2(arg1, arg2)
[[myObject message1] message2: arg1 label2: arg2];
my_object.method1.method2(arg1, :label2 => arg2)
Cocoa in 60 seconds

32. native numbers, strings, arrays, hashes
MacRuby in 60 seconds

33. Everything is an NSObject
native numbers, strings, arrays, hashes
MacRuby in 60 seconds

34. Everything is an NSObject
garbage == collected
native numbers, strings, arrays, hashes
MacRuby in 60 seconds

35. Everything is an NSObject
[obj setLame: YES] == obj.lame(false)
garbage == collected
native numbers, strings, arrays, hashes
MacRuby in 60 seconds

36. Everything is an NSObject
[obj setLame: YES] == obj.lame(false)
[obj isLame] == obj.lame?
garbage == collected
native numbers, strings, arrays, hashes
MacRuby in 60 seconds

37. Everything is an NSObject
[obj setLame: YES] == obj.lame(false)
[obj isLame] == obj.lame?
garbage == collected
framework ‘foundation’
framework ‘Cocoa’
native numbers, strings, arrays, hashes
MacRuby in 60 seconds

38. wrappers
Everything is an NSObject
[obj setLame: YES] == obj.lame(false)
[obj isLame] == obj.lame?
garbage == collected
framework ‘foundation’
framework ‘Cocoa’
native numbers, strings, arrays, hashes
MacRuby in 60 seconds

39. wrappers
Everything is an NSObject
[obj setLame: YES] == obj.lame(false)
[obj isLame] == obj.lame?
garbage == collected
framework ‘foundation’
framework ‘Cocoa’
native numbers, strings, arrays, hashes
[[myObject message1] message2: arg1 label2: arg2];
MacRuby in 60 seconds

40. wrappers
Everything is an NSObject
[obj setLame: YES] == obj.lame(false)
[obj isLame] == obj.lame?
garbage == collected
framework ‘foundation’
framework ‘Cocoa’
native numbers, strings, arrays, hashes
[[myObject message1] message2: arg1 label2: arg2];
my_object.method1.method2(arg1, :label2 => arg2)
MacRuby in 60 seconds

41. wrappers
Everything is an NSObject
[obj setLame: YES] == obj.lame(false)
[obj isLame] == obj.lame?
garbage == collected
framework ‘foundation’
framework ‘Cocoa’
native numbers, strings, arrays, hashes
[[myObject message1] message2: arg1 label2: arg2];
my_object.method1.method2(arg1, :label2 => arg2)
my_object.method1.method2(arg1, label2:arg2)
MacRuby in 60 seconds

42. In the beginning...

43. macruby.org

44. Install

45. Hello, I’m a Mac

46. But...Cocoa is lame!

47. Cocoa vs. Ruby
wordy expressive
initWithContentRect:style
game.bets.last.valid?
Mask:backing:defer:scree
n:

48. Cocoa vs. Ruby
wordy expressive
initWithContentRect:style
game.bets.last.valid?
Mask:backing:defer:scree
n:

49. HotCocoa::Mapping.map(:button => :NSButton) do
def init_with_options(button, options)
button.initWithFrame options.delete(:frame)
end
end
require 'hotcocoa'
include HotCocoa
button :frame => [0,0,20,100]
HotCocoa Constructors

50. HotCocoa::Mapping.map(:button => :NSButton) do
defaults :bezel => :rounded,
:frame => DefaultEmptyRect,
:layout => {}
end
require 'hotcocoa'
include HotCocoa
b = button
HotCocoa Defaults

51. HotCocoa::Mapping.map(:button => :NSButton) do
constant :state, {
:on => NSOnState,
:o = NSOState,
:mixed = NSMixedState
}
end
require 'hotcocoa'
include HotCocoa
button :state = :on
HotCocoa Constants

52. HotCocoa::Mapping.map(:button = :NSButton) do
custom_methods do
def bezel=(value)
setBezelStyle(value)
end
def on?
state == NSOnState
end
end
end
require 'hotcocoa'
include HotCocoa
go_button = button :state = on
puts 'yeah!' if go_button.on?
HotCocoa Methods

53. HotCocoa
/Developer/Examples/Ruby/MacRuby/HotCocoa
/Library/Frameworks/MacRuby.framework/Versions/
0.4/usr/lib/ruby/1.9.1/hotcocoa/mappings

54. You got Chocolate in
my Peanut Butter!

55. MacRuby 0.4
(March)
Xcode Templates
Embed MacRuby
HotCocoa coverage /
HotCocoa::Graphics
Threaded GC
Control Ruby Runtime from
Obj-C API

56. MacRuby 0.5
YARV LLVM
Faster I/O on CFStream
Pass RubySpec

57. @macruby
#ruby-osx
macruby-devel@macosforge.org
http://macruby.org/trac/report

59. Mac
iPhone
Ruby on Rails
Product Design/Mgmt.
snootymonkey.com sean@snootymonkey.com