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use expect_test::expect;
mod logger_db;
use logger_db::LoggerDb;
use query_group_macro::query_group;
#[salsa_macros::input]
struct Input {
str: String,
}
#[query_group]
trait PartialMigrationDatabase: salsa::Database {
fn length_query(&self, input: Input) -> usize;
// renamed/invoke query
#[salsa::invoke(invoke_length_query_actual)]
fn invoke_length_query(&self, input: Input) -> usize;
// invoke tracked function
#[salsa::invoke(invoke_length_tracked_actual)]
fn invoke_length_tracked(&self, input: Input) -> usize;
}
fn length_query(db: &dyn PartialMigrationDatabase, input: Input) -> usize {
input.str(db).len()
}
fn invoke_length_query_actual(db: &dyn PartialMigrationDatabase, input: Input) -> usize {
input.str(db).len()
}
#[salsa_macros::tracked]
fn invoke_length_tracked_actual(db: &dyn PartialMigrationDatabase, input: Input) -> usize {
input.str(db).len()
}
#[test]
fn unadorned_query() {
let db = LoggerDb::default();
let input = Input::new(&db, String::from("Hello, world!"));
let len = db.length_query(input);
assert_eq!(len, 13);
db.assert_logs(expect![[r#"
[
"salsa_event(WillCheckCancellation)",
"salsa_event(WillExecute { database_key: length_query_shim(Id(0)) })",
]"#]]);
}
#[test]
fn invoke_query() {
let db = LoggerDb::default();
let input = Input::new(&db, String::from("Hello, world!"));
let len = db.invoke_length_query(input);
assert_eq!(len, 13);
db.assert_logs(expect![[r#"
[
"salsa_event(WillCheckCancellation)",
"salsa_event(WillExecute { database_key: invoke_length_query_shim(Id(0)) })",
]"#]]);
}
// todo: does this even make sense?
#[test]
fn invoke_tracked_query() {
let db = LoggerDb::default();
let input = Input::new(&db, String::from("Hello, world!"));
let len = db.invoke_length_tracked(input);
assert_eq!(len, 13);
db.assert_logs(expect![[r#"
[
"salsa_event(WillCheckCancellation)",
"salsa_event(WillExecute { database_key: invoke_length_tracked_shim(Id(0)) })",
"salsa_event(WillCheckCancellation)",
"salsa_event(WillExecute { database_key: invoke_length_tracked_actual(Id(0)) })",
]"#]]);
}
#[test]
fn new_salsa_baseline() {
let db = LoggerDb::default();
#[salsa_macros::input]
struct Input {
str: String,
}
#[salsa_macros::tracked]
fn new_salsa_length_query(db: &dyn PartialMigrationDatabase, input: Input) -> usize {
input.str(db).len()
}
let input = Input::new(&db, String::from("Hello, world!"));
let len = new_salsa_length_query(&db, input);
assert_eq!(len, 13);
db.assert_logs(expect![[r#"
[
"salsa_event(WillCheckCancellation)",
"salsa_event(WillExecute { database_key: new_salsa_length_query(Id(0)) })",
]"#]]);
}
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