From 280f815f9795b9ccbaeb6aa7d4bc8d4ff0f6d7f1 Mon Sep 17 00:00:00 2001
From: Matias Alejo Garcia <ematiu@gmail.com>
Date: Mon, 10 Feb 2014 14:10:49 -0300
Subject: [PATCH] index for output spend matching (speeds ups tx api

---
 lib/TransactionDb.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/lib/TransactionDb.js b/lib/TransactionDb.js
index 4f1dbe4..06a558b 100644
--- a/lib/TransactionDb.js
+++ b/lib/TransactionDb.js
@@ -103,8 +103,15 @@ function spec(b) {
             assert(typeof j !== 'undefined','Spent could not be stored: tx ' + txid +
                    'spend in TX:' + k[2] + ',' + k[3]+ ' j:' + j);
 
-            ret[j].spendTxId  = v[0];
-            ret[j].spendIndex = parseInt(v[1]);
+/// TODO Handle multiple addresses here!
+            if (ret[j].spendTxId) {
+              // double spend!
+              assert(0);
+            }
+            else  {
+              ret[j].spendTxId  = v[0];
+              ret[j].spendIndex = parseInt(v[1]);
+            }
           })
           .on('error', function (err) {
             return cb(err);