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//! Test that you can implement a query using a `dyn Trait` setup.
#[salsa::database(DynTraitStorage)]
#[derive(Default)]
struct DynTraitDatabase {
storage: salsa::Storage<Self>,
}
impl salsa::Database for DynTraitDatabase {}
#[salsa::query_group(DynTraitStorage)]
trait DynTrait {
#[salsa::input]
fn input(&self, x: u32) -> u32;
fn output(&self, x: u32) -> u32;
}
fn output(db: &dyn DynTrait, x: u32) -> u32 {
db.input(x) * 2
}
#[test]
fn dyn_trait() {
let mut query = DynTraitDatabase::default();
query.set_input(22, 23);
assert_eq!(query.output(22), 46);
}
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