From c9fbaae0dad268e13c7f1685cdecf4bb6714384f Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Wed, 7 Dec 2016 18:03:32 -0800
Subject: [PATCH] chaindb: fix getCoinView.

---
 lib/blockchain/chaindb.js |  8 ++++----
 lib/mempool/mempool.js    | 12 ++----------
 2 files changed, 6 insertions(+), 14 deletions(-)

diff --git a/lib/blockchain/chaindb.js b/lib/blockchain/chaindb.js
index 06590aed..896d83e1 100644
--- a/lib/blockchain/chaindb.js
+++ b/lib/blockchain/chaindb.js
@@ -857,15 +857,15 @@ ChainDB.prototype.hasCoins = function hasCoins(hash) {
 ChainDB.prototype.getCoinView = co(function* getCoinView(tx, callback) {
   var view = new CoinView();
   var prevout = tx.getPrevout();
-  var i, prev, coins;
+  var i, hash, coins;
 
   for (i = 0; i < prevout.length; i++) {
-    prev = prevout[i];
-    coins = yield this.getCoins(prev);
+    hash = prevout[i];
+    coins = yield this.getCoins(hash);
 
     if (!coins) {
       coins = new Coins();
-      coins.hash = prev.hash;
+      coins.hash = hash;
       view.add(coins);
       continue;
     }
diff --git a/lib/mempool/mempool.js b/lib/mempool/mempool.js
index 52b1ac4c..370c7ba1 100644
--- a/lib/mempool/mempool.js
+++ b/lib/mempool/mempool.js
@@ -1309,19 +1309,11 @@ Mempool.prototype.injectCoins = function injectCoins(tx, view) {
   for (i = 0; i < tx.inputs.length; i++) {
     input = tx.inputs[i];
     prevout = input.prevout;
-
-    if (!view.has(prevout.hash)) {
-      missing.push(prevout.hash);
-      continue;
-    }
-
     coin = view.getCoin(prevout.hash, prevout.index);
 
     if (!coin) {
-      throw new VerifyError(tx,
-        'duplicate',
-        'bad-txns-inputs-spent',
-        0);
+      missing.push(prevout.hash);
+      continue;
     }
 
     input.coin = coin;