From 97962d51e29e8edacf823da6ec3fbd932dedcc48 Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Sun, 14 Jun 2020 11:10:11 -0700
Subject: [PATCH] Forward serialize_entry on flattened maps

---
 serde/src/private/ser.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/serde/src/private/ser.rs b/serde/src/private/ser.rs
index 4d9bce8c0..70f338181 100644
--- a/serde/src/private/ser.rs
+++ b/serde/src/private/ser.rs
@@ -1243,6 +1243,18 @@ where
         self.0.serialize_value(value)
     }
 
+    fn serialize_entry<K: ?Sized, V: ?Sized>(
+        &mut self,
+        key: &K,
+        value: &V,
+    ) -> Result<(), Self::Error>
+    where
+        K: Serialize,
+        V: Serialize,
+    {
+        self.0.serialize_entry(key, value)
+    }
+
     fn end(self) -> Result<(), Self::Error> {
         Ok(())
     }