Re: NSCell copyWithZone producing EXC_BAD_ACCESS
Re: NSCell copyWithZone producing EXC_BAD_ACCESS
- Subject: Re: NSCell copyWithZone producing EXC_BAD_ACCESS
- From: Graham <email@hidden>
- Date: Mon, 12 Nov 2007 08:57:19 -0500
Thanks Ricky, that was it.
As you can tell, I'm still a bit of a newbie at OCJ-C, and yes, how on
earth has this been working for over a year pre-Leopard??
On Nov 11, 2007, at 4:51 PM, Ricky Sharp wrote:
On Nov 11, 2007, at 3:21 PM, Graham wrote:
My application worked without problems in Tiger but crashes in
Leopard as follows...
I am using an NSBrowser for which I am supplying a custom cell class
called SelectionCell (inherits from NSBrowserCell).
I set the prototype in the browser's matrix as follows:
[matrix setPrototype:[SelectionCell alloc]];
You're not calling an init method here.
and this is where I get the crash, with the following stack trace:
#0 0x9006c9a7 in -[NSCell copyWithZone:]
#1 0x9025da12 in -[NSMatrix setPrototype:]
#2 0x00008074 in -[BrowserDelegate
browser:createRowsForColumn:inMatrix:] at BrowserDelegate.m:262
#3 0x903fc24c in -[NSBrowser
_sendDelegateCreateRowsForColumn:inMatrix:]
#4 0x902724b7 in -[NSBrowser addColumn]
#5 0x90271725 in -[NSBrowser loadColumnZero]
#6 0x000056a0 in -[Controller startup] at Controller.m:417
#7 0x000041f9 in -[Controller getToken] at Controller.m:236
#8 0x000046ed in -[Controller carryOn:] at Controller.m:280
#9 0x90114f94 in -[NSApplication sendAction:to:from:]
#10 0x90114ed4 in -[NSControl sendAction:to:]
#11 0x90114d5a in -[NSCell _sendActionFrom:]
#12 0x901143bb in -[NSCell trackMouse:inRect:ofView:untilMouseUp:]
#13 0x90113c12 in -[NSButtonCell
trackMouse:inRect:ofView:untilMouseUp:]
#14 0x901134cc in -[NSControl mouseDown:]
#15 0x90111d9b in -[NSWindow sendEvent:]
#16 0x900dea2c in -[NSApplication sendEvent:]
#17 0x9003c705 in -[NSApplication run]
#18 0x900099ba in NSApplicationMain
#19 0x00002638 in main at main.m:6
BTW, I'm quite surprised this didn't cause an issue under Tiger.
___________________________________________________________
Ricky A. Sharp mailto:email@hidden
Instant Interactive(tm) http://www.instantinteractive.com
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