Proof of concept - library AA

[Daniel Kozak via Digitalmars-d]

Dne 23.9.2016 v 09:39 Martin Nowak via Digitalmars-d napsal(a):

> On Sunday, 24 May 2015 at 14:13:26 UTC, Martin Nowak wrote:
>> Would be interesting to get some opinions on this.
>>
>> https://github.com/D-Programming-Language/druntime/pull/1282
>
> Bringing up this topic again b/c there was still almost no feedback on 
> the actual plan. Here is a summary.
>
> - built-in AA is too magic to be replaced by library AA
> - provide a general purpose library AA with enough benefits for people 
> to live with incompatibilities
> - add a cheap toBuiltinAA adapter for compatibility of the library AA 
> with existing code
> - make array and AA literals usable with UDTs
> - slowly deprecated magic behavior of the built-in AA
> - switch built-in AA to library AA
>
> Also we should plan for a std.container.aa to deal w/ all the fancy 
> generic/specialized stuff.

What is wrong with built-in AAs? And what advantages comes with library AAs?