On Friday, 14 March 2014 at 15:17:08 UTC, Andrei Alexandrescu
wrote:
On 3/14/14, 4:37 AM, Daniel Murphy wrote:
"Walter Bright" wrote in message
news:lfu74a$8cr$1...@digitalmars.com...
> No, it doesn't, because it is not usable if C introduces
> any virtual
> methods.
That's what the !final storage class is for.
My mistake, I forgot you'd said you were in favor of this.
Being able
to 'escape' final certainly gets us most of the way there.
!final is really rather hideous though.
A few possibilities discussed around here:
!final
~final
final(false)
@disable final
I've had an epiphany literally a few seconds ago that
"final(false)" has the advantage of being generalizable to
"final(bool)" taking any CTFE-able Boolean.
On occasion I needed a computed qualifier (I think there's code
in Phobos like that) and the only way I could do it was through
ugly code duplication or odd mixin-generated code. Allowing
computed qualifiers/attributes would be a very elegant and
general approach, and plays beautifully into the strength of D
and our current investment in Boolean compile-time predicates.
Andrei
Great idea.
