Nice… thank you Marco
> On Jul 26, 2015, at 4:43 PM, Marco S Hyman <m...@snafu.org> wrote:
>
>> func genericFor<T>(s:String) -> T {
>>
>> return T(s)! // error. ’T’ cannot be constructed because it has no
>> accessible initializers
>> }
>
> At compile time there is no way of determining if T has an initializer that
> takes a string. You could do something like this
>
> ----------------
>
> protocol InitFromString {
> init?(_ value: String)
> }
>
> func genericFor<T: InitFromString>(s:String) -> T {
>
> return T(s)!
> }
>
> ----------------
>
> Then add extensions to the various types you want to convert to make sure
> they conform to the InitFromString protocol.
>
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