From 3fb5a36f8dde3a447826aa6d7a9a05a4c04d5850 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Fri, 1 Jul 2016 05:27:05 -0700
Subject: [PATCH] optimize memblock parsing.

---
 lib/bcoin/memblock.js | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/lib/bcoin/memblock.js b/lib/bcoin/memblock.js
index 70e3873b..0b17f1ef 100644
--- a/lib/bcoin/memblock.js
+++ b/lib/bcoin/memblock.js
@@ -113,7 +113,7 @@ MemBlock.prototype.getCoinbaseHeight = function getCoinbaseHeight() {
  */
 
 MemBlock.prototype.fromRaw = function fromRaw(data) {
-  var p = bcoin.reader(data);
+  var p = bcoin.reader(data, true);
   var height = -1;
   var inCount, input;
 
@@ -126,7 +126,7 @@ MemBlock.prototype.fromRaw = function fromRaw(data) {
   this.totalTX = p.readVarint();
 
   if (this.version > 1 && this.totalTX > 0) {
-    p.readU32(); // Technically signed
+    p.seek(4);
     inCount = p.readVarint();
 
     if (inCount === 0) {
@@ -134,13 +134,13 @@ MemBlock.prototype.fromRaw = function fromRaw(data) {
         inCount = p.readVarint();
     }
 
-    if (inCount > 0)
-      input = bcoin.input.fromRaw(p);
+    if (inCount > 0) {
+      p.seek(36);
+      input = p.readVarBytes();
+      height = bcoin.script.getCoinbaseHeight(input);
+    }
   }
 
-  if (input)
-    height = bcoin.script.getCoinbaseHeight(input.script.raw);
-
   this.coinbaseHeight = height;
   this.raw = p.data;