[swift-dev] Statically-emitted or statically-allocated objects with new refcounting

Greg Parker gparker at apple.com
Tue Mar 14 15:34:15 CDT 2017


> On Mar 14, 2017, at 12:43 PM, Joe Groff <jgroff at apple.com> wrote:
> 
> Hey Greg, what are the correct refcounting bits now to set in a global statically-emitted heap object that shouldn't ever be released?

For now use the same thing that stack-allocated objects use. I forget what the bit pattern is exactly. (I assume you are not in strictly read-only memory and can tolerate writes to the refcount word. We don't yet have an implementation for immortal read-only objects.)


-- 
Greg Parker     gparker at apple.com <mailto:gparker at apple.com>     Runtime Wrangler


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