From 383014e754c2b663c7b87cb75cf7af5760c6561e Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Fri, 29 Apr 2016 17:09:13 -0700
Subject: [PATCH] faster strings for bufferwriter.

---
 lib/bcoin/writer.js | 27 ++++++++++++++++++---------
 1 file changed, 18 insertions(+), 9 deletions(-)

diff --git a/lib/bcoin/writer.js b/lib/bcoin/writer.js
index d1579ace..6f351082 100644
--- a/lib/bcoin/writer.js
+++ b/lib/bcoin/writer.js
@@ -56,6 +56,7 @@ BufferWriter.prototype.render = function render(keep) {
       case '64be': off += utils.write64BE(data, item[1], off); break;
       case 'varint': off += utils.writeVarint(data, item[1], off); break;
       case 'bytes': off += item[1].copy(data, off); break;
+      case 'str': off += data.write(item[1], off, item[2]); break;
       case 'checksum':
         off += utils.checksum(data.slice(0, off)).copy(data, off);
         break;
@@ -244,9 +245,10 @@ BufferWriter.prototype.getSize = function getSize() {
  */
 
 BufferWriter.prototype.writeString = function writeString(value, enc) {
-  if (typeof value === 'string')
-    value = new Buffer(value, enc);
-  this.writeBytes(value);
+  if (typeof value !== 'string')
+    return this.writeBytes(value);
+  this.written += Buffer.byteLength(value, enc);
+  this.data.push(['str', value, enc]);
 };
 
 /**
@@ -255,9 +257,7 @@ BufferWriter.prototype.writeString = function writeString(value, enc) {
  */
 
 BufferWriter.prototype.writeHash = function writeHash(value) {
-  if (typeof value === 'string')
-    value = new Buffer(value, 'hex');
-  this.writeBytes(value);
+  this.writeString(value, 'hex');
 };
 
 /**
@@ -267,9 +267,18 @@ BufferWriter.prototype.writeHash = function writeHash(value) {
  */
 
 BufferWriter.prototype.writeVarString = function writeVarString(value, enc) {
-  if (typeof value === 'string')
-    value = new Buffer(value, enc);
-  this.writeVarBytes(value);
+  var size;
+
+  if (typeof value !== 'string')
+    return this.writeVarBytes(value);
+
+  size = Buffer.byteLength(value, enc);
+
+  this.written += utils.sizeVarint(size);
+  this.written += size;
+
+  this.data.push(['varint', size]);
+  this.data.push(['str', value, enc]);
 };
 
 /**