File: tracked_fn_on_input.rs

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rust-salsa 0.23.0-3
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//! Test that a `tracked` fn on a `salsa::input`
//! compiles and executes successfully.
#![allow(warnings)]

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

#[salsa::tracked]
fn tracked_fn(db: &dyn salsa::Database, input: MyInput) -> u32 {
    input.field(db) * 2
}

#[test]
fn execute() {
    let mut db = salsa::DatabaseImpl::new();
    let input = MyInput::new(&db, 22);
    assert_eq!(tracked_fn(&db, input), 44);
}