From 87a94639d4f6656b78ecbe96969ca6638b41bd8f Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Fri, 1 Jul 2016 14:48:23 -0700
Subject: [PATCH] fix parse error. misc.

---
 lib/bcoin/chain.js  |  1 +
 lib/bcoin/miner.js  |  3 ++-
 lib/bcoin/script.js | 23 ++++++++++++++---------
 3 files changed, 17 insertions(+), 10 deletions(-)

diff --git a/lib/bcoin/chain.js b/lib/bcoin/chain.js
index 4e38c1fb..87698686 100644
--- a/lib/bcoin/chain.js
+++ b/lib/bcoin/chain.js
@@ -155,6 +155,7 @@ Chain.prototype._init = function _init() {
 
   this.on('exists', function(block, height) {
     bcoin.debug('Already have block %s (%d).', block.rhash, height);
+  });
 
   this.on('orphan', function(block, height) {
     bcoin.debug('Handled orphan %s (%d).', block.rhash, height);
diff --git a/lib/bcoin/miner.js b/lib/bcoin/miner.js
index cc0547a5..e408faf1 100644
--- a/lib/bcoin/miner.js
+++ b/lib/bcoin/miner.js
@@ -460,7 +460,8 @@ MinerBlock.prototype.updateCommitment = function updateCommitment() {
   hash = this.block.getCommitmentHash();
 
   // Update commitment.
-  output.script = bcoin.script.fromCommitment(hash, flags);
+  output.script.clear();
+  output.script.fromCommitment(hash, flags);
 };
 
 /**
diff --git a/lib/bcoin/script.js b/lib/bcoin/script.js
index b2744101..955a8d5c 100644
--- a/lib/bcoin/script.js
+++ b/lib/bcoin/script.js
@@ -2555,6 +2555,7 @@ Script.prototype.fromMultisig = function fromMultisig(m, n, keys) {
 
   this.push(n + 0x50);
   this.push(opcodes.OP_CHECKMULTISIG);
+
   this.compile();
 
   return this;
@@ -2692,14 +2693,7 @@ Script.fromAddress = function fromAddress(address) {
  */
 
 Script.prototype.fromCommitment = function fromCommitment(hash, flags) {
-  var p;
-
-  if (typeof flags === 'string')
-    flags = new Buffer(flags, 'utf8');
-
-  assert(!flags || Buffer.isBuffer(flags));
-
-  p = new BufferWriter();
+  var p = new BufferWriter();
   p.writeU32BE(0xaa21a9ed);
   p.writeHash(hash);
 
@@ -4656,7 +4650,7 @@ Opcode.prototype.toRaw = function toRaw(writer) {
 };
 
 /**
- * Instantiate an opcode from a number.
+ * Instantiate an opcode from a number opcode.
  * @param {Number} op
  * @returns {Opcode}
  */
@@ -4721,6 +4715,17 @@ Opcode.fromNumber = function fromNumber(num) {
   return Opcode.fromData(Script.array(num));
 };
 
+/**
+ * Instantiate an opcode from a small number.
+ * @param {Number} num
+ * @returns {Opcode}
+ */
+
+Opcode.fromSmall = function fromSmall(num) {
+  assert(utils.isNumber(num) && num >= 0 && num <= 16);
+  return new Opcode(num === 0 ? 0 : num + 0x50);
+};
+
 /**
  * Instantiate a pushdata opcode from a string.
  * @param {String} data