From 9a72c7437b16731260ae539eb35ad487ea0550e6 Mon Sep 17 00:00:00 2001
From: Daniel Cousens <github@dcousens.com>
Date: Thu, 12 Jun 2014 12:48:04 +1000
Subject: [PATCH] Script: adds Script.EMPTY constant

---
 src/script.js       | 3 +++
 src/transaction.js  | 4 ++--
 test/transaction.js | 4 ++--
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/script.js b/src/script.js
index cce5189..4b086b9 100644
--- a/src/script.js
+++ b/src/script.js
@@ -414,4 +414,7 @@ Script.prototype.without = function(needle) {
   }))
 }
 
+// Constants
+Script.EMPTY = new Script()
+
 module.exports = Script
diff --git a/src/transaction.js b/src/transaction.js
index be0d0bb..e9590d8 100644
--- a/src/transaction.js
+++ b/src/transaction.js
@@ -76,7 +76,7 @@ Transaction.prototype.addInput = function (tx, outIndex) {
       hash: hash,
       index: outIndex
     },
-    script: new Script()
+    script: Script.EMPTY
   }))
 }
 
@@ -206,7 +206,7 @@ Transaction.prototype.hashForSignature = function(scriptPubKey, inIndex, hashTyp
 
   // Blank out other inputs' signatures
   txTmp.ins.forEach(function(txin) {
-    txin.script = new Script()
+    txin.script = Script.EMPTY
   })
   txTmp.ins[inIndex].script = hashScript
 
diff --git a/test/transaction.js b/test/transaction.js
index e22f7f8..69f6b16 100644
--- a/test/transaction.js
+++ b/test/transaction.js
@@ -131,7 +131,7 @@ describe('Transaction', function() {
         verifyTransactionIn()
       })
 
-      function verifyTransactionIn(){
+      function verifyTransactionIn() {
         assert.equal(tx.ins.length, 1)
 
         var input = tx.ins[0]
@@ -140,7 +140,7 @@ describe('Transaction', function() {
         assert.equal(input.outpoint.index, 0)
         assert.equal(input.outpoint.hash, "0cb859105100ebc3344f749c835c7af7d7103ec0d8cbc3d8ccbd5d28c3c36b57")
 
-        assert.deepEqual(input.script.buffer, [])
+        assert.equal(input.script, Script.EMPTY)
       }
     })