OldNew: Make it Serialize and Deserialize

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/src/utils.rs b/src/utils.rs
index a72a790555df4b8a39ecd0af482b04505bc25660..a66cf7891cabdfb6a63dfbb34834a30f6236db9d 100644 (file)
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -40,7 +40,8 @@ impl str {
 }
 
 #[derive(Copy,Clone,Debug,From,Into)]
-#[derive(Hash,Eq,PartialEq)]
+#[derive(Hash,Eq,PartialEq,Serialize,Deserialize)]
+#[serde(transparent)]
 pub struct OldNew<T>([T; 2]);
 
 #[derive(Copy,Clone,Debug)]