virtual-by-default rant

[Ary Manzana]

On 3/18/12 9:23 AM, Manu wrote:
> The virtual model broken. I've complained about it lots, and people
> always say "stfu, use 'final:' at the top of your class".
>
> That sounds tolerable in theory, except there's no 'virtual' keyword to
> keep the virtual-ness of those 1-2 virtual functions I have... so it's
> no good (unless I rearrange my class, breaking the logical grouping of
> stuff in it).
> So I try that, and when I do, it complains: "Error: variable
> demu.memmap.MemMap.machine final cannot be applied to variable",
> allegedly a D1 remnant.
> So what do I do? Another workaround? Tag everything as final individually?
>
> My minimum recommendation: D needs an explicit 'virtual' keyword, and to
> fix that D1 bug, so putting final: at the top of your class works, and
> everything from there works as it should.

Is virtual-ness your performance bottleneck?