Add impl FromRow for the unit type (#2827)

launchbadge · Oct 23, 2023 · ba87bf7 · ba87bf7
1 parent 068ea14
commit ba87bf7
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/sqlx-core/src/from_row.rs b/sqlx-core/src/from_row.rs
@@ -275,6 +275,16 @@ pub trait FromRow<'r, R: Row>: Sized {
     fn from_row(row: &'r R) -> Result<Self, Error>;
 }
 
+impl<'r, R> FromRow<'r, R> for ()
+where
+    R: Row,
+{
+    #[inline]
+    fn from_row(_: &'r R) -> Result<Self, Error> {
+        Ok(())
+    }
+}
+
 // implement FromRow for tuples of types that implement Decode
 // up to tuples of 9 values