DIP 50 - AST macros

[Jacob Carlborg]

On 2013-11-12 15:38, John Colvin wrote:

> for those of us entirely unfamiliar with linq, what is this supposed to
> do? Select people with name "John" from a collection of people, like in
> sql? It seems trivial to do this using filter, or am I missing
> something...?

The idea of that example is, as Dicebot said, to convert the AST of the 
lambda to a string containing SQL code then query the database and 
return the result. The interesting part here, in the context of macros, 
is to convert the lambda to an SQL string.

The filter is not applied on the result, it's converted to SQL and 
performed in the database.

-- 
/Jacob Carlborg