Replacing AA's in druntime

[Dmitry Olshansky]

On 15.03.2012 12:52, Timon Gehr wrote:
> On 03/15/2012 09:40 AM, Dmitry Olshansky wrote:
>> On 15.03.2012 2:44, Jakob Bornecrantz wrote:
>>> Not true, as Steven said a opaque pImpl implementation would
>>> work, most modern C library design follow this principle with
>>> only using opaque except for pointers. This is because the ABI
>>> will then only require you call a certain set of functions (that
>>> can be extended to) not what that pointers points to, the
>>> details can be completely hidden.
>>>
>>
>> Trouble is when one dynamic lib uses one version of druntime and AA, and
>> your app another one. Guess what happens with this opaque pointer?
>>
>>
>
> AA should probably be a class with virtual methods.

If its V-table layout is consistent and fixed in say ABI spec, it could 
work.

-- 
Dmitry Olshansky