New syntax for string mixins

[Jacob Carlborg]

On 2010-12-14 12:42, Graham St Jack wrote:
> On 14/12/10 20:33, Vladimir Panteleev wrote:
>> On Tue, 14 Dec 2010 09:30:46 +0200, Graham St Jack
>> <Graham.StJack at internode.on.net> wrote:
>>
>>> There is of course the worry that it could get so easy that everyone
>>> starts doing it, and we have (relatively) impenetrable code everywhere
>>> instead of just deep in the bowels of framework libraries.
>>
>> TBH, I'm more excited by AST macros which I understood are planned for
>> D3, as mentioned here:
>> http://s3.amazonaws.com/dconf2007/WalterAndrei.pdf
>> They seem to promise the power of mixins, but without the mess.
>>
>
> I took a look at the pdf, but couldn't see how the AST macros could come
> close to the kinds of things that are possible (but difficult) with
> mixins. Is there more information somewhere?
>
> Jacob, I can see how your proposed syntax would make simple mixins
> easier and clearer, but how would it do something more complex?

I don't know, do you have an example ?

> For example taking a classname and a bunch of field types and names, and
> turning it into a class definition complete with constructor from field
> values, constructor from an input stream, a method to write to an output
> stream, and const getters. Or maybe std.typecons.AutoImplement.

Could you post an example of how that mixin would be used and the code 
it would generate then I can see if I can translate it to my syntax. 
AutoImplement seems to just contain template mixins which is something else.

-- 
/Jacob Carlborg