Re: NSAttributedString -size Crash
Re: NSAttributedString -size Crash
- Subject: Re: NSAttributedString -size Crash
- From: Seth Willits <email@hidden>
- Date: Sun, 31 May 2009 16:08:58 -0700
On May 31, 2009, at 3:45 PM, Kyle Sluder wrote:
On Sun, May 31, 2009 at 3:36 PM, Seth Willits <email@hidden>
wrote:
If [self title] were nil, I'd get an exception when creating the
attributed
string, not a crash when calling -size. There's nothing fancy going
on with
Not on Leopard you don't. You do get a warning, but not an exception.
This is the warning:
-[NSConcreteAttributedString initWithString:] called with nil string
argument. This has undefined behavior and will raise an exception in
post-Leopard linked apps. This warning is displayed only once.
Alright, well, either way I know it's not happening because it's not
in the console log.
On May 31, 2009, at 3:49 PM, Joar Wingfors wrote:
If [self title] were nil, I'd get an exception when creating the
attributed string, not a crash when calling -size. There's nothing
fancy going on with the string. The only thing I can think of is
that this drawing and call to -size is happening while the window
is resizing caused by a simple call to -[NSWindow
setFrame:display:animate:].
Is it at all possible that this is the result of some sort of thread
unsafe operation in your app?
Only if clicking on a button is not thread-safe. :-\
That's the only way this code could be triggered.
--
Seth Willits
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