Re: Collection was mutated while being enumerated
Re: Collection was mutated while being enumerated
- Subject: Re: Collection was mutated while being enumerated
- From: Corbin Dunn <email@hidden>
- Date: Wed, 31 Oct 2007 13:39:40 -0700
Since installing Leopard I'm seeing the following appear appear in
the console: "*** Collection <NSCFDictionary: 0x5e2e540> was mutated
while being enumerated."
I imagine this was something happening in the code before Leopard
but Leopard started logging it. Is there by any chance a breakpoint
I can set to catch where this is occurring? Would be handy.
Several ways; the first way is to link against Leopard. The second
way
is to set the user default: NSFastEnumerationShouldThrow=YES.
NSFastEnumerationShouldThrow, eh? 0 hits with Google, 0 hits in
Xcode's
doc viewer. :) Are there other new secret debugging aids in 10.5?
Yes, there are lots. I recommend taking a moment to read the AppKit
release notes, as there are several new debugging secrets mentioned
there:
http://developer.apple.com/releasenotes/Cocoa/AppKit.html
Granted, this one isn't there, but linking against Leopard would cause
it to raise an exception and be easily debuggable.
-corbin
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