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use query_group_macro::query_group;
mod logger_db;
use expect_test::expect;
use logger_db::LoggerDb;
#[query_group]
pub trait HelloWorldDatabase: salsa::Database {
#[salsa::input]
fn input_string(&self) -> String;
#[salsa::invoke_interned(length_query)]
fn length_query(&self, key: ()) -> (usize, usize);
}
fn length_query(db: &dyn HelloWorldDatabase, _key: ()) -> (usize, usize) {
let len = db.input_string().len();
(len, len)
}
#[test]
fn query() {
let mut db = LoggerDb::default();
db.set_input_string(String::from("Hello, world!"));
let len = db.length_query(());
assert_eq!(len, (13, 13));
db.assert_logs(expect![[r#"
[
"salsa_event(WillCheckCancellation)",
"salsa_event(WillExecute { database_key: create_data_HelloWorldDatabase(Id(0)) })",
"salsa_event(WillCheckCancellation)",
"salsa_event(DidValidateMemoizedValue { database_key: create_data_HelloWorldDatabase(Id(0)) })",
"salsa_event(WillCheckCancellation)",
"salsa_event(WillExecute { database_key: length_query_shim(Id(800)) })",
"salsa_event(WillCheckCancellation)",
]"#]]);
}
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