salsa/tests/compile-fail/get-set-on-private-input-field.rs

mod a {
    #[salsa::input]
    pub struct MyInput {
        field: u32,
    }
}

fn main() {
    let mut db = salsa::DatabaseImpl::new();
    let input = a::MyInput::new(&mut db, 22);

    input.field(&db);
    input.set_field(&mut db).to(23);
}