Issue by s-panferov
Monday Oct 20, 2014 at 18:12 GMT

For earlier discussion, see rust-lang/rust#18191

This issue was labelled with: B-RFC in the Rust repository

I started to write some simple ORM for test purposes and i'm very interested in ability to make some dynamic code generation that could replace Ruby's method_missing.

Pseudo-code to illustrate the idea:

impl UserModel {
    pub fn macro_method (find_by, $($field_name:ident)_and_+) (&self, $($field_value:expr),+) -> SelectQuery {
        self.select_all().where_(
            $(
                self.$field_name().is($field_value),
            )   
        )
    }
}

let query = user_model.find_by_id!(100u);
let query = user_model.find_by_first_name_and_last_name!("Luke", "Skywalker");

What do you think about that? I you not interested please close this issue and never mind.