Re: [Rubycocoa-talk] CFRetain Trouble

[Laurent S. <lsa...@ap...>]

Hi Javier,

Sorry for the late reply. This is an interesting crash, could you by  
any chance try to extract this crash in a separate / small project and  
send it to us? We would then be able to fix it quickly. at a glance,  
from the code snippet and the back trace, there is nothing really  
relevant to me.

Thanks!
Laurent

On Oct 8, 2007, at 3:31 AM, Javier Solorzano wrote:

> Hi All,
>
> I'm running into trouble while working with bindings. I setup the  
> default value of a popup button, taken from the user defaults  
> system. The contents for the popups comes from an array controller  
> which in turn gets the values from the user defaults controller.   
> When the user selects a different value, the app crashes with a  
> retain exception. If I do not setup a default value, or if the user  
> does not select a different option the code won't crash. I don't  
> think I'm doing anything perverse, but any tip will be appreciated.  
> This is the code that causes the problem:
>
> 	def windowControllerDidLoadNib(aController)
> 		super_windowControllerDidLoadNib(aController)
> 		arr =  
> OSX::NSUserDefaults.standardUserDefaults.arrayForKey("ListaAgentes")
> 		setDiccionarioAgenteSeleccionado(arr.objectAtIndex(0)) if arr
>
> This is the stack trace:
>
> #0	0x907c05c4 in CFRetain
> #1	0x92c67758 in _NSKeyValueObservationInfoCreateByRemoving
> #2	0x92c67530 in -[NSObject(NSKeyValueObserverRegistration)  
> _removeObserver:forProperty:]
> #3	0x92c67420 in -[NSObject(NSKeyValueObserverRegistration)  
> removeObserver:forKeyPath:]
> #4	0x92c68088 in -[NSKeyValueObservationForwarder  
> observeValueForKeyPath:ofObject:change:context:]
> #5	0x92befad8 in -[NSObject(NSKeyValueObserverNotification)  
> didChangeValueForKey:]
> #6	0x92c99d10 in _NSSetValueAndNotifyForUndefinedKey
> #7	0x92c6a728 in -[NSObject(NSKeyValueCoding) setValue:forKeyPath:]
> #8	0x939f2b1c in -[NSBinder  
> _setValue:forKeyPath:ofObject:mode:validateImmediately:raisesForNotApplicableKeys:error 
> :]
> #9	0x939f29a4 in -[NSBinder setValue:forBinding:error:]
> #10	0x93c664a8 in -[NSValueBinder  
> _applyObjectValue:forBinding:canRecoverFromErrors:handleErrors:typeOfAlert:discardEditingCallback:otherCallback:callbackContextInfo:didRunAlert 
> :]
> #11	0x93c66904 in -[NSValueBinder  
> applyDisplayedValueHandleErrors:typeOfAlert:canRecoverFromErrors:discardEditingCallback:otherCallback:callbackContextInfo:didRunAlert 
> :]
> #12	0x93c67508 in -[NSValueBinder performAction:]
> #13	0x93c53310 in -[_NSBindingAdaptor  
> _objectDidTriggerAction:bindingAdaptor:]
> #14	0x938e5c40 in -[NSPopUpButtonCell _popUpItemAction:]
> #15	0x9383fc4c in -[NSApplication sendAction:to:from:]
> #16	0x9389a4b8 in -[NSMenu performActionForItemAtIndex:]
> #17	0x9389a23c in -[NSCarbonMenuImpl  
> performActionWithHighlightingForItemAtIndex:]
> #18	0x938c2d6c in _NSPopUpCarbonMenu2
> #19	0x938c23ac in _NSPopUpCarbonMenu1
> #20	0x938c2368 in -[NSCarbonMenuImpl  
> popUpMenu:atLocation:width:forView:withSelectedItem:withFont:]
> #21	0x938c2008 in -[NSPopUpButtonCell  
> trackMouse:inRect:ofView:untilMouseUp:]
> #22	0x93859094 in -[NSControl mouseDown:]
> #23	0x937fa890 in -[NSWindow sendEvent:]
> #24	0x937a38d4 in -[NSApplication sendEvent:]
> #25	0x9379ad10 in -[NSApplication run]
> #26	0x9388b87c in NSApplicationMain
> #27	0x0004224c in ffi_call_DARWIN
> #28	0x00041d84 in ffi_call
> #29	0x0003fbcc in rb_ffi_dispatch
>
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