feat(impls): Allow options to be deserialized from units

serde-rs · Jan 24, 2016 · 0a32cea · 0a32cea
1 parent da4e37d
commit 0a32cea
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/serde/src/de/impls.rs b/serde/src/de/impls.rs
@@ -283,6 +283,13 @@ impl<
 > Visitor for OptionVisitor<T> {
     type Value = Option<T>;
 
+    #[inline]
+    fn visit_unit<E>(&mut self) -> Result<Option<T>, E>
+        where E: Error,
+    {
+        Ok(None)
+    }
+
     #[inline]
     fn visit_none<E>(&mut self) -> Result<Option<T>, E>
         where E: Error,