From 687e4dc8555b3b53fd8d4a4974b8f8f4b594b552 Mon Sep 17 00:00:00 2001
From: ucwong <ucwong@126.com>
Date: Fri, 25 Feb 2022 05:55:45 +0800
Subject: [PATCH] rlp: add WriteString method on EncoderBuffer (#24425)

rlpgen outputs calls to this method for values of type string.
---
 rlp/encbuffer.go | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/rlp/encbuffer.go b/rlp/encbuffer.go
index 0e200a9a33bb..50b83099c349 100644
--- a/rlp/encbuffer.go
+++ b/rlp/encbuffer.go
@@ -118,6 +118,10 @@ func (buf *encBuffer) writeBytes(b []byte) {
 	}
 }
 
+func (buf *encBuffer) writeString(s string) {
+	buf.writeBytes([]byte(s))
+}
+
 // wordBytes is the number of bytes in a big.Word
 const wordBytes = (32 << (uint64(^big.Word(0)) >> 63)) / 8
 
@@ -340,6 +344,11 @@ func (w EncoderBuffer) WriteBytes(b []byte) {
 	w.buf.writeBytes(b)
 }
 
+// WriteBytes encodes s as an RLP string.
+func (w EncoderBuffer) WriteString(s string) {
+	w.buf.writeString(s)
+}
+
 // List starts a list. It returns an internal index. Call EndList with
 // this index after encoding the content to finish the list.
 func (w EncoderBuffer) List() int {