[swift-users] Stored Property, Externally Read-Only

[Nate Birkholz]

That's correct.

On Fri, Apr 29, 2016 at 8:52 AM, David Sweeris via swift-users <
swift-users at swift.org> wrote:

> Yep, declare it like this:
> public private(set) var lastUpdated: NSDate?
>
> At least I’m pretty sure that’s the syntax. I don’t have Xcode in front of
> me to double-check.
>
> HTH
> - Dave Sweeris
>
> On Apr 29, 2016, at 9:52 AM, Bob Davidson via swift-users <
> swift-users at swift.org> wrote:
>
> Hello,
>
> Does Swift have a syntax for allowing a stored property to be internally
> changed by a class/structure, but external access is read-only?
>
> For example, my class/structure may have a date property such as
> “lastUpdated”.  Outside code should have access to read the “lastUpdated”
> property, but should not be allowed to change it.  Periodically, my class
> may perform an “update” and would internally change the value of
> “lastUpdated”.
>
> The only way I see to support this with a private property and a computed,
> get-only property:
>
> private var internalLastUpdated: NSDate?
> var lastUpdated: NSDate? { return internalLastUpdated }
>
> This there a better way?
>
> Thanks,
> Bob Davidson
>
> _______________________________________________
> swift-users mailing list
> swift-users at swift.org
> https://lists.swift.org/mailman/listinfo/swift-users
>
>
>
> _______________________________________________
> swift-users mailing list
> swift-users at swift.org
> https://lists.swift.org/mailman/listinfo/swift-users
>
>


-- 
Nate Birkholz
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.swift.org/pipermail/swift-users/attachments/20160429/66af2fa9/attachment.html>