1 files changed, 82 insertions, 0 deletions
diff --git a/third_party/rust/bytes-0.4.12/src/serde.rs b/third_party/rust/bytes-0.4.12/src/serde.rs
new file mode 100644
index 0000000000..d45caff051
--- /dev/null
+++ b/third_party/rust/bytes-0.4.12/src/serde.rs
@@ -0,0 +1,82 @@
+extern crate serde;
+
+use std::{cmp, fmt};
+use self::serde::{Serialize, Serializer, Deserialize, Deserializer, de};
+use super::{Bytes, BytesMut};
+
+macro_rules! serde_impl {
+    ($ty:ident, $visitor_ty:ident) => (
+        impl Serialize for $ty {
+            #[inline]
+            fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+                where S: Serializer
+            {
+                serializer.serialize_bytes(&self)
+            }
+        }
+
+        struct $visitor_ty;
+
+        impl<'de> de::Visitor<'de> for $visitor_ty {
+            type Value = $ty;
+
+            fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+                formatter.write_str("byte array")
+            }
+
+            #[inline]
+            fn visit_seq<V>(self, mut seq: V) -> Result<Self::Value, V::Error>
+                where V: de::SeqAccess<'de>
+            {
+                let len = cmp::min(seq.size_hint().unwrap_or(0), 4096);
+                let mut values = Vec::with_capacity(len);
+
+                while let Some(value) = try!(seq.next_element()) {
+                    values.push(value);
+                }
+
+                Ok(values.into())
+            }
+
+            #[inline]
+            fn visit_bytes<E>(self, v: &[u8]) -> Result<Self::Value, E>
+                where E: de::Error
+            {
+                Ok($ty::from(v))
+            }
+
+            #[inline]
+            fn visit_byte_buf<E>(self, v: Vec<u8>) -> Result<Self::Value, E>
+                where E: de::Error
+            {
+                Ok($ty::from(v))
+            }
+
+            #[inline]
+            fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
+                where E: de::Error
+            {
+                Ok($ty::from(v))
+            }
+
+            #[inline]
+            fn visit_string<E>(self, v: String) -> Result<Self::Value, E>
+                where E: de::Error
+            {
+                Ok($ty::from(v))
+            }
+        }
+
+        impl<'de> Deserialize<'de> for $ty {
+            #[inline]
+            fn deserialize<D>(deserializer: D) -> Result<$ty, D::Error>
+                where D: Deserializer<'de>
+            {
+                deserializer.deserialize_byte_buf($visitor_ty)
+            }
+        }
+    );
+}
+
+serde_impl!(Bytes, BytesVisitor);
+serde_impl!(BytesMut, BytesMutVisitor);