I'm seeing a crash in -[_NSArrayControllerTreeNode
_safeNodeAtIndexPath:] but I'm not really sure why. That would be
"why" in the sense of what -[_NSArrayControllerTreeNode
_safeNodeAtIndexPath:] might be doing or of something I should or
shouldn't have done vs. saying that it crashed because of a nil
pointer. :)
A little more background: I am using Karelia's iMediaBrowser
framework in a project. I have created a custom media parser that
generates information for the browser to display in an outline view.
There is also a button in the UI that refreshes the data. It is in
response to clicking that button that [someMutableArray setArray:...]
is being called and then is crashing down in the bowels of AppKit.
Thoughts?
Steve
------------------------------
OS Version: 10.4.11 (Build 8S2167)
Exception: EXC_BAD_ACCESS (0x0001)
Codes: KERN_PROTECTION_FAILURE (0x0002) at 0x00000010
Thread 0 Crashed:
0 com.apple.AppKit 0x93836ca1 -[_NSArrayControllerTreeNode
_safeNodeAtIndexPath:] + 150
1 com.apple.AppKit 0x93838585 -[NSTreeController
_prepareArrayControllerTree] + 337
2 com.apple.AppKit 0x9383bec5 -[NSTreeController setContent:]
+ 478
3 com.apple.AppKit 0x935347ac -[NSArrayDetailBinder
_refreshDetailContentInBackground:] + 1559
4 com.apple.Foundation 0x928cb174 -[NSObject
(NSKeyValueObserverNotification) didChange:valuesAtIndexes:forKey:] +
1029
5 com.apple.Foundation 0x928c7aeb -
[NSKeyValueNotifyingMutableArray removeLastObject] + 192
6 com.apple.Foundation 0x928018d4 -[NSMutableArray
removeAllObjects] + 64
7 com.apple.Foundation 0x9281a749 -[NSMutableArray setArray:] + 38
...
Thread 0 crashed with X86 Thread State (32-bit):
eax: 0x00000000 ebx: 0x93836c19 ecx: 0x90aade80 edx: 0x00000001
edi: 0x00000000 esi: 0x00000000 ebp: 0xbfffe728 esp: 0xbfffe6f0
ss: 0x0000001f efl: 0x00010293 eip: 0x93836ca1 cs: 0x00000017
ds: 0x0000001f es: 0x0000001f fs: 0x00000000 gs: 0x00000037
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