Re: static analyzers says I'm leaking, I _think_ I'm not
Re: static analyzers says I'm leaking, I _think_ I'm not
- Subject: Re: static analyzers says I'm leaking, I _think_ I'm not
- From: Michael David Crawford <email@hidden>
- Date: Wed, 06 May 2015 14:17:16 -0700
This is 6.2. I speculated a different diagnostic was a bug; were it
correct, I would have seen that same diagnostic on some other code.
I'll file a radar with a minimal test case if you'd like me to.
I'll download 6.3.1 right now.
Michael David Crawford, Consulting Software Engineer
email@hidden
http://www.warplife.com/mdc/
Available for Software Development in the Portland, Oregon Metropolitan
Area.
On Wed, May 6, 2015 at 2:12 PM, Greg Parker <email@hidden> wrote:
>
>> On May 6, 2015, at 1:57 PM, Michael David Crawford <email@hidden> wrote:
>>
>> // LifeGrid.h
>> @property (assign, nonatomic) GridCycler *cycler;
>>
>> // Lifegrid.m - init
>> self.cycler = [[GridCycler alloc] initWithGrid: self]; // Potential
>> leak of an object
>> if ( nil == self.cycler ) goto cycler_failed;
>>
>> // dealloc
>> [self.cycler release];
>>
>> Expanding the "potential leak" message yields:
>>
>> 1. assuming 'self' is not nil
>>
>> 2. method returns Objective-C object with +1 retain count
>>
>> 3. Object leaked: allocated object is not references later in this
>> execution path and has a retain count of +1.
>>
>> Isn't that what I want? I should be taking ownership of it with
>> "alloc/initWithGrid".
>>
>> (initWithGrid doesn't do a cyclic retain.)
>
> Which version of Xcode are you using? The static analyzer in Xcode 6.3 has several bugs in retain count analysis and not all of them are fixed in Xcode 6.3.1.
>
>
> --
> Greg Parker email@hidden Runtime Wrangler
>
>
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