DIP 50 - AST macros

[Jacob Carlborg]

On 2013-11-18 22:08, IgorStepanov wrote:

> May be this way is good for D? And CTFE allow to parse this tree
> at compile-time.
> Something like:
>
> @property Collection where(alias cond, Collection)(Collection c)
> {
>       enum ast = cond.astof;
>       static if(is(Collection : DBResultSet))
>       {
>          string where_cond = generateCondition!(ast, Collection);
>          return c.doWhere(where_cond);
>       }
>       else
>       {
>          ...
>       }
> }
>
> ...
>
> auto result = db.myItems.where!(x => x.Count > 10);

The idea is to have something more general. Linq is just one example of 
what can be implemented.

-- 
/Jacob Carlborg