From 2e39f1a1e35345938ca96043112573f298cedc10 Mon Sep 17 00:00:00 2001
From: Roman Khimov <roman@nspcc.ru>
Date: Fri, 20 Aug 2021 11:38:42 +0300
Subject: [PATCH] io: drop one allocation from NewBufBinWriter

---
 pkg/io/binaryBufWriter.go | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/pkg/io/binaryBufWriter.go b/pkg/io/binaryBufWriter.go
index f90584fba..e64b58f2c 100644
--- a/pkg/io/binaryBufWriter.go
+++ b/pkg/io/binaryBufWriter.go
@@ -13,13 +13,14 @@ var ErrDrained = errors.New("buffer already drained")
 // writes via Bytes().
 type BufBinWriter struct {
 	*BinWriter
-	buf *bytes.Buffer
+	buf bytes.Buffer
 }
 
 // NewBufBinWriter makes a BufBinWriter with an empty byte buffer.
 func NewBufBinWriter() *BufBinWriter {
-	b := new(bytes.Buffer)
-	return &BufBinWriter{BinWriter: NewBinWriterFromIO(b), buf: b}
+	b := new(BufBinWriter)
+	b.BinWriter = NewBinWriterFromIO(&b.buf)
+	return b
 }
 
 // Len returns the number of bytes of the unread portion of the buffer.