add missing visit_enum

serde-rs · Oct 18, 2024 · 6fefeb1 · 6fefeb1
1 parent 4b3178b
commit 6fefeb1
Showing 1 changed file with 7 additions and 4 deletions.
diff --git a/serde/src/private/de.rs b/serde/src/private/de.rs
@@ -525,13 +525,16 @@ mod content {
             Ok(Content::Map(vec))
         }
 
-        fn visit_enum<V>(self, _visitor: V) -> Result<Self::Value, V::Error>
+        fn visit_enum<V>(self, visitor: V) -> Result<Self::Value, V::Error>
         where
             V: EnumAccess<'de>,
         {
-            Err(de::Error::custom(
-                "untagged and internally tagged enums do not support enum input",
-            ))
+            use crate::de::VariantAccess;
+            let (key, data) = tri!(visitor.variant::<String>());
+            Ok(Content::Map(vec![(
+                Content::String(key),
+                tri!(data.newtype_variant::<Self::Value>()),
+            )]))
         }
     }