DIP53 and DIP49 (ver2) - New definitions for qualified constructors and postblits

[Timon Gehr]

On 12/18/2013 04:47 PM, Maxim Fomin wrote:
> On Wednesday, 18 December 2013 at 15:29:44 UTC, bearophile wrote:
>> Kenji Hara:
>>
>>> I think adding new keyword/attribute just for readability is overkill.
>>
>> Making the code more explicit and easy to understand, using the right
>> words, is rather important. So I like @unique, that can probably be
>> re-uses for another purpose.
>>
>> What's worse than having many keywords is having them with multiple
>> meanings. Otherwise are you willing to explain again and again to
>> future people in D.learn that specific "const" doesn't really mean
>> const, it really means... and so on :-)
>>
>> Bye,
>> bearophile
>
> Which additional meaning will const qualifier have?

It will be used to annotate a postblit that requires all fields with 
indirections to be re-initialized with freshly allocated data instead of 
a postblit that is used during copying of a const object. (There will be 
no way to define such a const postblit, because the DIP assumes this to 
be useless.)