[Vm-dev] Re: Immutability, newspeak (was: Vm-dev post from jbaptiste.arnaud@gmail.com requires approval)

[Igor Stasenko]

On 8 June 2010 19:15, Andreas Raab <andreas.raab at gmx.de> wrote:
>
> On 6/8/2010 7:41 AM, David T. Lewis wrote:
>>
>> What do the VM developers think with respect adopting the VM changes?
>> The immutability bit is a scarce resource. Is it OK to allocate it
>> for this purpose or are there likely to be other projects interested
>> in using it for other reasons?
>
> Honestly, I don't thinnk the immutability bit carries its weight here.
> There's some fun stuff you can do with it, for sure, but outside of
> *extremely* specialized applications (oodbs) there will be little to no use
> for it. At least I don't see where you'd make use of immutability in some
> random app that's not a database. If it were essentially free to add it, I
> wouldn't mind (like I said there's fun stuff that one can do) but given that
> we're talking about allocating a header bit I feel that there's just not
> enough mileage we get out of it...
>
> Just my random $.02.
>

my $.001
my concern is not a header bit, but introduction of its check on each
write operation,
which will slow down things.

> Cheers,
>  - Andreas
>



-- 
Best regards,
Igor Stasenko AKA sig.