If you had money to place for a bounty, what would you choose?

[Manu]

On 2 December 2013 19:33, Dejan Lekic <dejan.lekic at gmail.com> wrote:

> On Friday, 29 November 2013 at 13:44:10 UTC, Manu wrote:
>
>> * ARC
>> * rvalue -> ref
>> * virtual-by-default
>> * GC improvements
>> * AA fixes
>>
>>
>> On 29 November 2013 07:01, Fra <Fra at b.it> wrote:
>>
>>  Personally I would love to see this old issue finally implemented/fixed:
>>> There can be only one alias this.
>>> https://d.puremagic.com/issues/show_bug.cgi?id=6083
>>>
>>> What would your choice be?
>>>
>>
> I hope virtual-by-default never gets approved. I read DIP51 and quite
> frankly I am not convinced at all. It is basically "I do not want to put
> final in front of my methods. Well, I do not want to put virtual in front
> of my methods... But this is perhaps something for another discussion...
>

There's been endless discussions on the topic. There was a link to a thread
with loads of discussion.
The problem is that virtual is irrevocable. It can't be removed without
breaking the API, which means it's not possible to optimise a library in
that way at any time after it has already been released to the wild. The
converse is not true.
It has also been agreed that there is very little the compiler/optimiser
can do to help.
It's a dangerous default, it's got absolutely nothing to do with "I don't
want to type final" as you helpfully simplified it. You can type 'virtual:'
at the top, and you're set. Again, the converse doesn't stand, you can't
practically type 'final:' at the top since there will inevitable by SOME
virtual methods.

We can spin off another thread if you like, or you can read through the old
ones. I don't think it's going to go any further than the other threads
already did.
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