[Rubycocoa-talk] RubyCocoa and alias_method_chain ?

[Marcus C. <cra...@re...>]

Hi All,

Hope all is going well!

I'm trying to extend method_missing on OSX::CIImage using =20
alias_method_chain and are having trouble getting it to work, here's =20
an example to demonstrate it:

require 'rubygems'
require 'active_support'
require 'osx/cocoa'

module OSX
   class CIImage
     def method_missing_with_example(sym, *args, &block)
       method_missing_without_example(sym, *args, &block)
     end

     alias_method_chain :method_missing, :example
   end
end

original =3D =20
OSX::CIImage.imageWithContentsOfURL(OSX::NSURL.fileURLWithPath('/Users/=20=

crafterm/Desktop/leaves_desktop.jpg'))
puts original.extent.size

When I run this I get:

	NoMethodError: undefined method =91extent=92 for =
#<OSX::CIConcreteImage:=20
0x117248c>

If I comment out the call to alias_method_chain I get the expected =20
result:

	#<OSX::CGSize:0x1173710>

Somehow alias_method_chain breaks it. This is using Ruby & RubyCocoa =20
as per a default install of Leopard, Rails 2.0.1 active support gems.

Any thoughts what might be going on or what I could try to get it =20
working?

Cheers,

Marcus=