From d63d09f4db4132d9eacad8e95d2370f393aef288 Mon Sep 17 00:00:00 2001
From: Oliver Schneider <oli-obk@users.noreply.github.com>
Date: Thu, 1 Dec 2016 11:23:12 +0100
Subject: [PATCH] Enable deserializing an empty `String` from a unit value

---
 serde/src/de/impls.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/serde/src/de/impls.rs b/serde/src/de/impls.rs
index 915ef5b2..8cad930a 100644
--- a/serde/src/de/impls.rs
+++ b/serde/src/de/impls.rs
@@ -283,6 +283,12 @@ impl Visitor for StringVisitor {
         Ok(v)
     }
 
+    fn visit_unit<E>(&mut self) -> Result<String, E>
+        where E: Error,
+    {
+        Ok(String::new())
+    }
+
     fn visit_bytes<E>(&mut self, v: &[u8]) -> Result<String, E>
         where E: Error,
     {