From b7b31bf9da36a9d8a4f7d9673c6db37ae7b87702 Mon Sep 17 00:00:00 2001
From: Erick Tryzelaar <erick.tryzelaar@gmail.com>
Date: Thu, 13 Aug 2015 07:42:06 -0700
Subject: Implement Serialize::visit_newtype_{struct,variant}

These functions allow a serializer to not wrap a newtyped value
inside of a tuple or struct.
---
 src/encoder/serde.rs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'src/encoder')

diff --git a/src/encoder/serde.rs b/src/encoder/serde.rs
index 87a742e..3b50181 100644
--- a/src/encoder/serde.rs
+++ b/src/encoder/serde.rs
@@ -59,6 +59,24 @@ impl ser::Serializer for Encoder {
         try!(value.serialize(self));
         Ok(())
     }
+    fn visit_newtype_struct<T>(&mut self,
+                               _name: &'static str,
+                               value: T) -> Result<(), Self::Error>
+        where T: ser::Serialize,
+    {
+        // Don't serialize the newtype struct in a tuple.
+        value.serialize(self)
+    }
+    fn visit_newtype_variant<T>(&mut self,
+                                _name: &'static str,
+                                _variant_index: usize,
+                                _variant: &'static str,
+                                value: T) -> Result<(), Self::Error>
+        where T: ser::Serialize,
+    {
+        // Don't serialize the newtype struct variant in a tuple.
+        value.serialize(self)
+    }
 }
 
 impl ser::Serialize for Value {
-- 
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