[swift-users] unowned self in closure in a playground

Ray Fix rayfix at gmail.com
Tue Feb 21 21:53:34 CST 2017

> On Feb 21, 2017, at 7:32 PM, rintaro ishizaki <fs.output at gmail.com> wrote:
> lifetime guaranteed to be around until the method call completes
> AFAIK, this is true.
> However, in this case, it's not a method call. The lifetime is only guaranteed until getter:increment completes.
> Demo().increment(3)
> |--------------| lifetime

Thanks!  This is an interesting explanation.  

It is curious that naming the variable cases different behavior.
IOW, this doesn’t have a problem:

let demo = Demo()

Lifetime seems to last the entire expression. 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.swift.org/pipermail/swift-users/attachments/20170221/4c980ea2/attachment.html>

More information about the swift-users mailing list