[swift-evolution] ability to derive a class from a struct or other value type

[Mike Kluev]

On 23 June 2017 at 23:18, Tony Allevato <tony.allevato at gmail.com> wrote:

class C1: C2  ==>  C1() is C2 == true
> class C1: P  ==>  C1() is P == true
> class C1: S  ==>  C1() is S == false?
>

ok. changing the rule then:

C() is S == true

foo(x) acts the same way as foo(x.super)
bar(&x) acts the same way as bar(&x.super)

i am not quite sure i am getting the answers along the lines of "use
protocol forwarding" instead. i have no protocol to begin with. for a
preexisting value type (e.g. OS provided) it would be a nightmare to create
and maintain the corresponding protocol.

Mike
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