"I would be surprised since it is developer-fault anyway"
developers don't make mistakes. machines do!. hahah. j/k.
Thanks for the tips and links everyone.
On Tue, May 11, 2010 at 3:26 PM, Keary Suska <cocoa-...@esoteritech.com> wrote:
> On May 11, 2010, at 2:42 PM, Quincey Morris wrote:
>
>> On May 11, 2010, at 12:45, Joanna Carter wrote:
>>
>>> Only if you implement the KVO pattern in the setters:
>>>
>>> - (void) setCornerSize:(NSSize) _size
>>> {
>>> [self willChangeValueForKey:@"CornerSize"];
>>> [[self cell] setCornerSize:_size];
>>> [self didChangeValueForKey:@"CornerSize"];
>>> }
>>
>> Um, not so much. :)
>>
>> In the normal case, setters *should not* call will/didChangeValueForKey,
>> since the entire setter is (invisibly) enclosed in a pair of such calls.
>> It's harmless (AFAIK), because KVO explicitly suppresses the recursion
>> implied by calling them within the setter, but it's absolutely unnecessary.
>> Unless ...
>
> In my experience, doing this will actually raise application-breaking
> exceptions in many cases, unless this has been solved by a recent OS release.
> I suspect that the API does *not* do any checking, or doesn't check in every
> case. Unless, of course, this has been "fixed" since I came across it last,
> which is possible but I would be surprised since it is developer-fault anyway.
>
> Keary Suska
> Esoteritech, Inc.
> "Demystifying technology for your home or business"
>
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