From 3dd4289b4c0842361da4556ef1a86b54612b788e Mon Sep 17 00:00:00 2001
From: NikVolf <nikvolf@gmail.com>
Date: Fri, 16 Feb 2018 16:47:10 +0300
Subject: [PATCH] add doc comment

---
 src/elements/mod.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/elements/mod.rs b/src/elements/mod.rs
index d89b076..ec8dd9e 100644
--- a/src/elements/mod.rs
+++ b/src/elements/mod.rs
@@ -65,7 +65,8 @@ pub trait Deserialize : Sized {
 	fn deserialize<R: io::Read>(reader: &mut R) -> Result<Self, Self::Error>;
 }
 
-/// Serialization to serial i/o
+/// Serialization to serial i/o. Takes self by value to consume less memory
+/// (parity-wasm IR is being partially freed by filling the result buffer).
 pub trait Serialize {
 	/// Serialization error produced by serialization routine.
 	type Error: From<io::Error>;