Negation of attributes (DIP 79)

[Daniel Kozák via Digitalmars-d]

On Wed, 03 Jun 2015 14:49:31 -0700
Andrei Alexandrescu via Digitalmars-d <digitalmars-d at puremagic.com>
wrote:

> On 6/3/15 2:19 PM, Jonathan M Davis wrote:
> > Regardless, I think that attribute(boolean expression) is the clear
> > winner, because it's for more flexible.
> 
> Yes please. -- Andrei

Are we ok with code like this:

final(someTemplate!orMaybeSomeAnother!SomeValue)
finalOrVIrtualmethodWhoKnows() {}

?

Maybe we can start with just attr(false) and attr(true), and add
complete bool expresion evaluation in future?