Merge commit 'ddf105b646' into sync-from-ra

crates/salsa/tests/variadic.rs

@@ -0,0 +1,51 @@
+#[salsa::query_group(HelloWorld)]
+trait HelloWorldDatabase: salsa::Database {
+    #[salsa::input]
+    fn input(&self, a: u32, b: u32) -> u32;
+
+    fn none(&self) -> u32;
+
+    fn one(&self, k: u32) -> u32;
+
+    fn two(&self, a: u32, b: u32) -> u32;
+
+    fn trailing(&self, a: u32, b: u32) -> u32;
+}
+
+fn none(_db: &dyn HelloWorldDatabase) -> u32 {
+    22
+}
+
+fn one(_db: &dyn HelloWorldDatabase, k: u32) -> u32 {
+    k * 2
+}
+
+fn two(_db: &dyn HelloWorldDatabase, a: u32, b: u32) -> u32 {
+    a * b
+}
+
+fn trailing(_db: &dyn HelloWorldDatabase, a: u32, b: u32) -> u32 {
+    a - b
+}
+
+#[salsa::database(HelloWorld)]
+#[derive(Default)]
+struct DatabaseStruct {
+    storage: salsa::Storage<Self>,
+}
+
+impl salsa::Database for DatabaseStruct {}
+
+#[test]
+fn execute() {
+    let mut db = DatabaseStruct::default();
+
+    // test what happens with inputs:
+    db.set_input(1, 2, 3);
+    assert_eq!(db.input(1, 2), 3);
+
+    assert_eq!(db.none(), 22);
+    assert_eq!(db.one(11), 22);
+    assert_eq!(db.two(11, 2), 22);
+    assert_eq!(db.trailing(24, 2), 22);
+}