From c451415d9fb6d4c81c45c30a1bb525bff5d2d071 Mon Sep 17 00:00:00 2001
From: Mingun <Alexander_Sergey@mail.ru>
Date: Thu, 29 May 2025 01:07:27 +0500
Subject: [PATCH] Do not duplicate variant deserialization code

---
 serde_derive/src/de.rs | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/serde_derive/src/de.rs b/serde_derive/src/de.rs
index c05c840d..418ed253 100644
--- a/serde_derive/src/de.rs
+++ b/serde_derive/src/de.rs
@@ -1601,10 +1601,12 @@ fn deserialize_adjacently_tagged_enum(
         }
     } else {
         quote! {
-            let __ret = match #variant_from_map {
-                // Deserialize the buffered content now that we know the variant.
-                #(#variant_arms)*
-            }?;
+            let __seed = __Seed {
+                field: #variant_from_map,
+                marker: _serde::#private::PhantomData,
+                lifetime: _serde::#private::PhantomData,
+            };
+            let __ret = _serde::de::DeserializeSeed::deserialize(__seed, __deserializer)?;
             // Visit remaining keys, looking for duplicates.
             #visit_remaining_keys
         }