Re: [Rubycocoa-talk] Cocoa-ized return values from methods

[Steven A. <st...@ne...>]

Hi Jonathan, thanks for your reply.

On Aug 22, 2005, at 4:19 PM, Jonathan Paisley wrote:

> On 22 Aug 2005, at 17:45, Steven Arnold wrote:
>
>> When I call self.getFormValues, I do not get back a Ruby Hash, but  
>> rather a Cocoa NSCFDictionary.  Right before the return, it's a  
>> hash....but when it gets back, it's an NSCFDictionary.
>
> Could you include the exact code you're using when calling  
> getFormValues? The behaviour ought to be as you're hoping, but it  
> won't if the method call is going via the Objective C bridge.

Here's a complete program, runnable on the command-line, that will  
break.  If you comment out the "private" line and the attr_accessor  
line, it will work.  It does not have the same problem with public or  
protected attributes!

Weird......  Any thoughts?


require 'osx/cocoa'

class X < OSX::NSObject
   private
     attr_accessor :datamanager

   def getHash
     {}
   end

   def me
     self
   end

   def selfGetHash
     self.getHash
   end
end

x = X.alloc.init
p x.getHash #=> {}
p x.me #=> #<X:0x812db2 class='X' id=0x12a02f0>
p x.selfGetHash #=> {}

p x.oc_me #=>  #<X:0x812db2 class='X' id=0x12a02f0>
p x.oc_getHash #=> #<OSX::OCObject:0x80e596 class='NSCFDictionary'  
id=0x12a9f30>
p x.oc_selfGetHash #=> #<OSX::OCObject:0x80d844  
class='NSCFDictionary' id=0x12abc30>



steve