From 0d7929136acb23364924b460a5ea805104aea2e1 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Sat, 23 Jan 2016 22:00:19 -0800
Subject: [PATCH] fix getChainwork.

---
 lib/bcoin/chain.js | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/lib/bcoin/chain.js b/lib/bcoin/chain.js
index 867a4f9b..65952b09 100644
--- a/lib/bcoin/chain.js
+++ b/lib/bcoin/chain.js
@@ -1163,18 +1163,15 @@ ChainBlock.prototype.__defineGetter__('next', function() {
   return this.chain.db.get(this.height + 1);
 });
 
-ChainBlock.prototype.__defineGetter__('proof', function() {
+ChainBlock.prototype.getProof = function getProof() {
   var target = utils.fromCompact(this.bits);
   if (target.isNeg() || target.cmpn(0) === 0)
     return new bn(0);
   return new bn(1).ushln(256).div(target.addn(1));
-});
+};
 
 ChainBlock.prototype.getChainwork = function() {
-  if (!this.prev)
-    return new bn(0);
-
-  return (this.prev ? this.prev.chainwork : new bn(0)).add(this.proof);
+  return (this.prev ? this.prev.chainwork : new bn(0)).add(this.getProof());
 };
 
 ChainBlock.prototype.getMedianTime = function() {