> On Aug 9, 2016, at 08:24 , Karl <razie...@gmail.com> wrote:
>
>
>> On 3 Aug 2016, at 02:01, Rick Mann via swift-users <swift-users@swift.org>
>> wrote:
>>
>> It complains if I make it a let because computed properties must be var.
>> Because it's a protocol, it can't be stored (even though it can be stored in
>> the conforming type).
>>
>> If I make it { get }, I can't set it in the extensions init() method.
>>
>> I guess I could make it private set (not sure of the syntax for that), but
>> it still doesn't have let semantics.
>
> It sounds like you should put the calculation function in the protocol
> extension, the property in the protocol, and let conforming types decide how
> to store that property (and when to calculate it).
That still doesn't mean that someone on the outside looking in at Element sees
let semantics.
--
Rick Mann
rm...@latencyzero.com
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