January 2011 - MacRuby-devel - lists.macosforge.org

segfault galore while building spec-fu
by Joel Reymont 19 Jan '11

19 Jan '11

I'm getting segmentation faults all over the place [1] when building spec-fu [2] using macrake. What is the best way to debug these? Should I just run macruby from gdb and file a bug report with the stack trace? Thanks, Joel [1] https://gist.github.com/786100 [2] https://github.com/wagerlabs/state-fu --- http://wagerlabs.com | @wagerlabs | http://www.linkedin.com/in/joelreymont

1 0

BridgeSupport Preview 3 released
by Laurent Sansonetti 19 Jan '11

19 Jan '11

Hi guys, The 3rd preview release of BridgeSupport is available for download: http://www.macruby.org/files/BridgeSupport%20Preview%203.zip This release fixes a bug where informal protocols wouldn't be properly annotated. This release has also been built for both i386 and x86_64. Please install and let us know if your project still works. Thanks :) Laurent

3 4

Static Typing
by Brad Hutchins 19 Jan '11

19 Jan '11

Will MacRuby eventually allow for optional Static Typing like in Objective-C?

7 7

String performance (yet another)
by Yasu Imao 19 Jan '11

19 Jan '11

Hi, I found another String performance issue, which is different from #1077. I used the same 8092 words English text in UTF-8 used in #1077. The latest nightly (2011/01/16) is about 6 times slower than MacRuby 0.8, which was as fast as 1.9.2. I'm just wondering if I should file this for 0.9 or for 'later'. text = File.read("test.txt") #text = File.read("test.txt").force_encoding("UTF-16BE") 1000.times do |i| a = text[i,i+30] end *Ruby 1.8.7 0.0019 0.0018 0.0017 Ruby 1.9.2 0.029 0.030 0.029 MacRuby 0.8 0.028 0.025 0.028 MacRuby 0.9 2011/01/16 0.18 0.17 0.18 MacRuby 0.9 2011/01/16 0.0023 0.0029 0.0021 (force_encoding)

3 4

wrapping iokit
by Joel Reymont 18 Jan '11

18 Jan '11

Has anyone tried wrapping user-land IOKit, e.g. #include <IOKit/IOKitLib.h> #include <IOKit/scsi/SCSITaskLib.h> #include <IOKit/usb/IOUSBLib.h> #include <IOKit/storage/IOMedia.h> I'd love to use MacRuby to prototype user-land USB drivers. --- http://wagerlabs.com | @wagerlabs | http://www.linkedin.com/in/joelreymont

3 7

Creating ruby objects in Objective-C
by Alan Skipp 18 Jan '11

18 Jan '11

Hi, Is there any way to inform an Objective-C class of the existence of a ruby class so that instances can be created in Objective-C code? Currently I am doing the following: [[MacRuby sharedRuntime] evaluateString:[NSString stringWithFormat:@"RubyClass.new('%@')", arg]]; If I'm adding quite a few objects (300+) to an array in a loop, this line of code is quite slow. My assumption (which may be false) is that either of the 3 options below would be quicker. [RubyClass performSelector:@selector(new:) withObject:arg]; [RubyClass new:arg]; [[RubyClass alloc] initWithArg:arg]; Are any of those options (or an equivalent) a possibility? Alan

4 6

Desperately Seeking MacRuby Talks (was [ANN] Red Dirt RubyConf 2011 CFP]
by Joseph Anthony Pasquale Holsten 17 Jan '11

17 Jan '11

Hello everyone! Red Dirt's got a track exclusively dedicated a track to Ruby implementations this year and I was hoping people would submit some a proposals about MacRuby. There's already a couple good ones up now: http://reddirtrubyconf.com/presentations/gui-programming-with-macruby http://reddirtrubyconf.com/presentations/core-data-with-macruby If you've got something you want to present, please submit a talk ASAP! And please vote up the talks you think are awesome. Here follows the standard call for papers announcement: We are really pleased to announce the second annual Red Dirt RubyConf to be help April 21st and 22nd, 2010 in Oklahoma City, Oklahoma. Come check us out at: http://reddirtrubyconf.com/ We are also very happy to announce that Aaron Patterson of AT&T Interactive and Dr. Nic Williams of EngineYard will participate as keynote speakers. We are actively seeking conference presentation proposals in one of four conference themes: RUBY IMPLEMENTATIONS - There is more than one Ruby. This theme will focus on alternative implementations such as JRuby, Rubinius and MacRuby. RAILS EXTENSIONS - The power of Rails is in its add ons. This theme will focus on projects that build on to and extend Rail's core functionality. JAVASCRIPT - There is power in diversity. This theme will focus on the Ruby/Javascript interface such as JQuery, Coffeescript, Node.js, and Titanium. CLOUD SERVICES - Scalable applications have never been easier. This theme will focus on hosting services such as VPS, EC2, S3, AppCloud, and Heroku. The Call for Proposals is now available online. Please send submit your great ideas for talks here: http://reddirtrubyconf.com/call-for-proposals A proposals will be voted on by the public and the most voted proposal presentation will win a conference pass, a training pass and three nights stay at the conference hotel. Propose a presentation now for the best chance to win! Once you're done, take a minute to vote for the best talks you see at the site. You can vote once every day, so there's plenty of time to make your voice heard. Vote for the best talks here: http://reddirtrubyconf.com/vote -- Joseph Holsten http://josephholsten.com

1 0

Yet yet another String performance issue
by Yasu Imao 17 Jan '11

17 Jan '11

Hi again, Another String performance issue. Tested on a text file with 4360 lines (\n) (different from the one I used with other tests). With these tests, 0.9 nightly is much much slower than 0.8, so I'll file a ticket for 0.9. Test 1 - File.read("test.txt").split(/\n/) Test 2 - File.read("test.txt").split("\n") Test 1 - force_encoding - File.read("test.txt").force_encoding("UTF-16BE").split(/\n/) Test 2 - force_encoding - File.read("test.txt").force_encoding("UTF-16BE").split("\n".force_encoding("UTF-16BE")) Test 3 - File.read("test.txt").lines {} Ruby 1.8.7 Test 1 - 0.0081 0.0078 0.0086 Test 2 - 0.0078 0.0079 0.0079 Test 3 - 0.0058 0.0053 0.0065 Ruby 1.9.2 Test 1 - 0.0089 0.0090 0.0089 Test 2 - 0.0035 0.0035 0.0035 Test 3 - 0.0036 0.0035 0.0035 MacRuby 0.8 2011/01/16 Test 1 - 0.026 0.039 0.023 Test 2 - 0.019 0.018 0.018 Test 3 - 0.023 0.020 0.026 MacRuby 0.9 2011/01/16 Test 1 - 0.021 0.021 0.021 Test 2 - 23.51 23.55 23.50 Test 3 - 23.43 23.38 23.35 MacRuby 0.9 2011/01/16 - force_encoding Test 1 - 0.015 0.015 0.015 Test 2 - 0.011 0.011 0.011

2 1

Issues with Notifications in MacRuby
by Daniel Lopes 16 Jan '11

16 Jan '11

Hello, I'm playing with notification in MacRuby but I don't know the behavior of the same thing in Objc is a little diferent. I believe the problem could be something related to Macruby's XCode template that don't do something that the normal cocoa do. The app is really simple and I just created a new MacRuby app: 1º added the AddressBook framework in the target 2º in rb_main.rb I added: framework 'AddressBook' 3º in Interface build I dropped an ABPeoplePicker 4º created an new class called PeoplePickerViewController 5º made an NSObject in IB and set the class to my new controller 6º made an outlet to the ABPeoplePicker 7º add awakeFromNib and register an observer for notification. Everything goes and compile but the selector registered in notification is not called when user interact with ABPeoplePicker. I followed the same steps in pure Objc app and everything worked very well. Here is my Ruby code: https://gist.github.com/782006 (and the app http://cl.ly/42CZ) Here is my Objc code: https://gist.github.com/782007 Probably is something that I don't know how to do in MacRuby and is different from Objc. Someone could help? Thanks a lot.

3 2

Fail to access kABFirstNameProperty
by Daniel Lopes 16 Jan '11

16 Jan '11

Hello, I'm playing with AddressBook framework but I can't figure how access the predefined constants. For example, in my ViewControler I do like below but XCode can't find kABFirstNamePropery. I already added framework 'AddressBook' in my rb_main.rb: def awakeFromNib notificationCenter = NSNotificationCenter.defaultCenter notificationCenter.addObserver(self, selector: "recordChanged:", name: ABPeoplePickerNameSelectionDidChangeNotification, object:peoplePicker) end def recordChanged(notification) people = peoplePicker.selectedRecords person = people.first puts kABFirstNameProperty end Anyone can help me with this issue? Thanks in advance ;)

2 3