From 0f40d78f9ea1cafead2dccc0beb61d9544d02e66 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Tue, 23 Feb 2016 17:27:07 -0800
Subject: [PATCH] this is faster for some reason.

---
 lib/bcoin/hd.js | 50 +++++++++++++++++++++++--------------------------
 1 file changed, 23 insertions(+), 27 deletions(-)

diff --git a/lib/bcoin/hd.js b/lib/bcoin/hd.js
index 4cb6f7ff..692b45db 100644
--- a/lib/bcoin/hd.js
+++ b/lib/bcoin/hd.js
@@ -702,37 +702,29 @@ HDPrivateKey.prototype._build = function _build(data) {
   this.privateKey = data.privateKey;
   this.checksum = null;
 
-  this.xprivkey = xprivkey;
   this.fingerPrint = fingerPrint;
   this.publicKey = publicKey;
+  this.key = key;
 
   this.hdPrivateKey = this;
-  this.key = key;
+  this.xprivkey = xprivkey;
+
+  this.hdPublicKey = new HDPublicKey({
+    network: this.network,
+    data: {
+      key: this.key,
+      version: network[this.network].prefixes.xpubkey,
+      depth: this.depth,
+      parentFingerPrint: this.parentFingerPrint,
+      childIndex: this.childIndex,
+      chainCode: this.chainCode,
+      checksum: this.checksum,
+      publicKey: this.publicKey
+    }
+  });
+  this.xpubkey = this.hdPublicKey.xpubkey;
 };
 
-HDPrivateKey.prototype.__defineGetter__('xpubkey', function() {
-  return this.hdPublicKey.xpubkey;
-});
-
-HDPrivateKey.prototype.__defineGetter__('hdPublicKey', function() {
-  if (!this._hdPublicKey) {
-    this._hdPublicKey = new HDPublicKey({
-      network: this.network,
-      data: {
-        key: this.key,
-        version: network[this.network].prefixes.xpubkey,
-        depth: this.depth,
-        parentFingerPrint: this.parentFingerPrint,
-        childIndex: this.childIndex,
-        chainCode: this.chainCode,
-        checksum: this.checksum,
-        publicKey: this.publicKey
-      }
-    });
-  }
-  return this._hdPublicKey;
-});
-
 HDPrivateKey.prototype.derive = function derive(index, hardened) {
   var cached, data, hash, leftPart, chainCode, privateKey, child;
   var off = 0;
@@ -1084,11 +1076,15 @@ HDPublicKey.prototype._build = function _build(data) {
   this.publicKey = publicKey;
   this.checksum = null;
 
+  this.fingerPrint = fingerPrint;
+  this.privateKey = null;
+  this.key = data.key || bcoin.keypair({ publicKey: this.publicKey });
+
   this.hdPublicKey = this;
   this.xpubkey = xpubkey;
-  this.fingerPrint = fingerPrint;
 
-  this.key = data.key || bcoin.keypair({ publicKey: this.publicKey });
+  this.hdPrivateKey = null;
+  this.xprivkey = null;
 };
 
 HDPublicKey.prototype.derive = function derive(index, hardened) {