Standalone AA implementation ready for review (Was: Re: Replacing AA's in druntime)

[Don Clugston]

On 15/03/12 00:16, H. S. Teoh wrote:
> On Tue, Mar 13, 2012 at 09:30:45PM -0500, Andrei Alexandrescu wrote:
>> On 3/13/12 7:54 PM, H. S. Teoh wrote:
>>> Hi all,
>>>
>>> My AA implementation is slowly inching closer to being ready to
>>> replace aaA.d.
>>
>> Great! This will need compiler restructuring, and in fact offers the
>> perfect opportunity for it. I suggest you to post your implementation
>> here for review first, and assume only the minimal lowerings from the
>> compiler.
>
> Alright, I've finished the basic functionality of my AA implementation.
> I still haven't solved that problem with using suffixless string
> literals to index X[dstring], so you'll have to write aa["abc"d] instead
> of just aa["abc"]. But I thought I should post my code now so that
> people can take a look at it:
>
> 	https://github.com/quickfur/New-AA-implementation/blob/master/newAA.d
>
> Currently, this code is still standalone, not integrated with druntime
> yet.  Since that will require compiler changes and is potentially a very
> big change, I've decided to polish up the standalone version as much as
> possible before attempting druntime integration.

This is good, and very, very important. Do *not* make any attempt at 
compiler integration until it is *completely* ready.

This includes AA literals. They need to be accepted somehow. The 
compiler will give you syntax sugar and *nothing* more.
One possibility might be to accept a pair of array literals, 
representing keys and values.
Possibly it should call a CTFE function to convert them into some other 
form?