Re: Questions regarding release
Re: Questions regarding release
- Subject: Re: Questions regarding release
- From: "Glenn L. Austin via Cocoa-dev" <email@hidden>
- Date: Thu, 26 Sep 2019 08:16:26 -0700
The analyzer is great at what it does but it can't be omniscient about your
code.
When you start a method name with "make" or "new" or "create" it assumes that
you're returning a +1 value.
--
Glenn L. Austin, Computer Wizard and Race Car Driver <><
<http://www.austinsoft.com>
> On Sep 26, 2019, at 6:05 AM, Gabriel Zachmann via Cocoa-dev
> <email@hidden> wrote:
>
>
>>
>> The Xcode "analyze" step should check for errors of this kind. I have xcode
>> set to analyze on every build, since it's usually not too slow.
>
> Thanks a lot for the hint!
>
> I tried it and it works pretty well.
> I actually found 2 (small) leaks.
>
> There is one place in my code (different from my OP),
> where I get a "leaked" warning from the Analyzer, but I am not sure why that
> is.
>
> Here is what the function basically does:
>
> - (void) makeTextLayerRectangle: (CATextLayer*) textlayer fontsize: (float)
> fontsize text: (NSString*) text
> {
> ...
> textlayer.bounds = CGRectMake( 0.0, 0.0, string_rect.width,
> string_rect.height );
> textlayer.shadowPath = CGPathCreateWithRect( textlayer.bounds, NULL );
> }
>
>
> But I get the warning
> "Object leaked: allocated object of type 'CGPathRef _Nonnull' is not
> referenced later in this execution path and has a retain count of +1"
>
> Note that text layer is a call-by-reference var.
>
> Is that just a bug in the Analyzer? Am I missing something?
>
> Best regards, Gabriel
>
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