Re: mutableBytes Creates Autoreleased Objects
Re: mutableBytes Creates Autoreleased Objects
- Subject: Re: mutableBytes Creates Autoreleased Objects
- From: Dave Fernandes <email@hidden>
- Date: Sat, 12 May 2012 17:19:21 -0400
Cool! That would eliminate some of the gymnastics I have been going through to make sure I reference the NSData object some time after I use the internal bytes.
On 2012-05-12, at 5:05 PM, Quincey Morris wrote:
> On May 12, 2012, at 13:55 , Dave Fernandes wrote:
>
>> So when a method is declared __attribute__ ((objc_returns_inner_pointer)), then LLVM tracks regular pointers like it would NSObject pointers to see when the owning object can be dealloced? Just want to make sure I understand.
>
> … to see when the owning object's variable's compile time scope ends. Other retain/release optimizations aside, that would be the point where its retain count is decremented, and that might in turn trigger deallocation.
>
> But, yes, basically that's how I understand the documentation. It seems *way* too convenient to be true. ;)
>
>
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