October 2009 - MacRuby-devel - lists.macosforge.org

Gem Bundler is the Future
by Ernest N. Prabhakar, Ph.D. 17 Oct '09

17 Oct '09

I wonder if this will help MacRuby applications: http://litanyagainstfear.com/blog/2009/10/14/gem-bundler-is-the-future/ Sounds like it is tied to Rails, but might be possible to extend it slightly to serve our needs... -enp

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Serial Port I/O
by Robert Rice 17 Oct '09

17 Oct '09

Hi Team: Do you have a recommended way to do serial port I/O in a MacRuby environment? I was using ruby-serialport in the RubyCocoa environment but the gem gives me the following error: Password: ERROR: While executing gem ... (RuntimeError) MacRuby does not support native extensions yet. Be patient :-) new-host:~ robertrice$ Thanks, Bob Rice

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Re: [MacRuby-devel] Using Gems in MacRuby
by Craig Williams 17 Oct '09

17 Oct '09

Hi Everyone, I am still not understanding how to include gems in my MacRuby project. From what has been discussed, I "unpacked" the gem and included it in the project in "Vendor/gems." I am using this in the rb_main.rb file, but it is resulting in 2180 errors. Dir.glob(File.expand_path("#{NSBundle.mainBundle.resourcePath}/vendor/ gems/*", __FILE__)).each do |gem| $:.unshift File.join(gem, 'lib') end I know this must be very simple but I am not getting it. I write Ruby scripts nearly every day but I all of my development experience is with Objective-C. I would really appreciate a small example of how to accomplish this. Thanks, Craig

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Re: [MacRuby-devel] Gem Bundler is the Future
by John Barnette 16 Oct '09

16 Oct '09

On Fri, Oct 16, 2009 at 3:01 PM, Rich Morin <rdm(a)cfcl.com> wrote: > So, I strongly suggest that the MacRuby community try out the > new tools as soon as possible and see what happens... You might also want to take a look at the code in Isolate (http://github.com/jbarnette/isolate) It's not nearly as ambitious or far-reaching as Bundler, but it's only a couple hundred lines of code, and it's extracted from production apps. Getting the code (if not the gem) running on MacRuby shouldn't be burdensome. ~ j.

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[MacRuby] #390: File#flock is undefined
by MacRuby 16 Oct '09

16 Oct '09

#390: File#flock is undefined ----------------------------+----------------------------------------------- Reporter: jazzbox@… | Owner: lsansonetti@… Type: defect | Status: new Priority: major | Milestone: MacRuby 0.5 Component: MacRuby | Keywords: ----------------------------+----------------------------------------------- Calling File#flock results in: NoMethodError: undefined method ... -- Ticket URL: <http://www.macruby.org/trac/ticket/390> MacRuby <http://macruby.org/>

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[MacRuby] #389: unable to set ivar in a class derived from String, Array, Hash
by MacRuby 16 Oct '09

16 Oct '09

#389: unable to set ivar in a class derived from String, Array, Hash ----------------------------+----------------------------------------------- Reporter: jazzbox@… | Owner: lsansonetti@… Type: defect | Status: new Priority: critical | Milestone: MacRuby 0.5 Component: MacRuby | Keywords: ----------------------------+----------------------------------------------- {{{ class Foo < String def foo @foo = 42 @foo end end p Foo.new.foo }}} gives a nil Same issue with Hash and Array. -- Ticket URL: <http://www.macruby.org/trac/ticket/389> MacRuby <http://macruby.org/>

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Using Gems in MacRuby
by Craig Williams 16 Oct '09

16 Oct '09

Hi Everyone, I have searched the web but have not found a good explanation on how to use gems in a MacRuby project. Is there a tutorial I am missing? Thanks, Craig

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[MacRuby] #347: module in module_function mode can't have methods with default args
by MacRuby 16 Oct '09

16 Oct '09

#347: module in module_function mode can't have methods with default args -------------------------------------+-------------------------------------- Reporter: mattaimonetti@… | Owner: lsansonetti@… Type: defect | Status: new Priority: blocker | Milestone: MacRuby 0.5 Component: MacRuby | Keywords: module_function module -------------------------------------+-------------------------------------- {{{ $ macruby -e "module Foo; module_function; def bar(baz=42); baz; end; end; p Foo.bar(2)" => -e:1:in `<main>': wrong number of arguments (1 for 0) (ArgumentError) }}} {{{ $ macruby -e "module Foo; def bar(baz=42); baz; end; end; include Foo; p bar(2)" => 2 }}} {{{ $ ruby19 -e "module Foo; module_function; def bar(baz=42); baz; end; end; p Foo.bar(2)" => 2 }}} -- Ticket URL: <http://www.macruby.org/trac/ticket/347> MacRuby <http://macruby.org/>

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[MacRuby] #326: module_function implicit use breaks (ArgumentError) with 1-arg splat methods (w/test code)
by MacRuby 16 Oct '09

16 Oct '09

#326: module_function implicit use breaks (ArgumentError) with 1-arg splat methods (w/test code) ---------------------------+------------------------------------------------ Reporter: occam@… | Owner: lsansonetti@… Type: defect | Status: new Priority: major | Milestone: Component: MacRuby | Keywords: module_function splat ArgumentError ---------------------------+------------------------------------------------ module_function works for explicit declarations, but seems to have a problem (ArgumentError) with 1-arg splat methods when used implicitly. I think a fix here will help compatibility with various libraries (e.g., Linguistics). Best to show with code: module SplatTesting def use( *languages ) p "def use( *languages )" end module_function :use module_function def useBROKEN( *languages ) p "def useBROKEN( *languages )" end end SplatTesting.use # => "def use( *languages )" SplatTesting.use 'foo' # => "def use( *languages )" SplatTesting.useBROKEN # => "def useBROKEN( *languages )" SplatTesting.useBROKEN 'foo' # wrong number of arguments (1 for 0) for useBROKEN: (ArgumentError) -- Ticket URL: <http://www.macruby.org/trac/ticket/326> MacRuby <http://macruby.org/>

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[MacRuby] #208: Making #binding public returns wrong binding.
by MacRuby 16 Oct '09

16 Oct '09

#208: Making #binding public returns wrong binding. -------------------------------------+-------------------------------------- Reporter: eloy.de.enige@… | Owner: lsansonetti@… Type: defect | Status: new Priority: blocker | Milestone: Component: MacRuby | Keywords: -------------------------------------+-------------------------------------- Making the binding instance method of a class public does not return the expected binding. Rather it returns the binding from where the caller. Adding a public instance method which returns its private binding works as expected though. So I'm guessing it goes wrong somewhere in the ‘making a method public’ process. Consider: {{{ class Foo def name "foo" end def b binding end end # untitled:13:in `eval': undefined local variable or method `name' for main:NSObject (NameError) # # p eval("name", Foo.new.send(:binding)) # untitled:17:in `eval': undefined local variable or method `name' for main:NSObject (NameError) # # Foo.send(:public, :binding) # p eval("name", Foo.new.binding) # "foo" p eval("name", Foo.new.b) }}} And here you can see that it in fact returns the binding of the caller, not the Foo instance: {{{ lvar = "lvar" Foo.send(:public, :binding) p eval("local_variables", Foo.new.binding) # => [:lvar] }}} -- Ticket URL: <http://www.macruby.org/trac/ticket/208> MacRuby <http://macruby.org/>

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