From 6c997e20b5412dd8ae81fe7aaee409480e75734e Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Sun, 15 May 2016 22:33:20 -0700
Subject: [PATCH] remove alternative script num methods.

---
 lib/bcoin/script.js | 18 +++---------------
 1 file changed, 3 insertions(+), 15 deletions(-)

diff --git a/lib/bcoin/script.js b/lib/bcoin/script.js
index c68b91f4..9e700aef 100644
--- a/lib/bcoin/script.js
+++ b/lib/bcoin/script.js
@@ -1912,11 +1912,10 @@ Script.num = function num(value, flags, size) {
   // If the input vector's most significant byte is
   // 0x80, remove it from the result's msb and return
   // a negative.
-  if (value[value.length - 1] & 0x80) {
-    // n = new bn(0x80).ushln(8 * (value.length - 1)).notn(64);
-    // return result.uand(n).neg();
+  // Equivalent to:
+  // -(result & ~(0x80 << (8 * (value.length - 1))))
+  if (value[value.length - 1] & 0x80)
     result.setn((value.length * 8) - 1, 0).ineg();
-  }
 
   return result;
 };
@@ -1963,17 +1962,6 @@ Script.array = function(value) {
   // interpreted as a negative when
   // converting to an integral.
 
-  // neg = value.cmpn(0) < 0;
-  // if (value.testn((value.byteLength() * 8) - 1)) {
-  //   result = value.toArray('le');
-  //   result.push(neg ? 0x80 : 0);
-  //   return new Buffer(result);
-  // }
-  // result = value.toBuffer('le');
-  // if (neg)
-  //   result[result.length - 1] |= 0x80;
-  // return result;
-
   neg = value.cmpn(0) < 0;
   result = value.toArray('le');