From e718caa1ff6e996bf7b0cbf1e7a2cd00ea68b1e5 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Tue, 10 Jan 2017 00:07:18 -0800
Subject: [PATCH] tx: extra assertion.

---
 lib/primitives/tx.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/primitives/tx.js b/lib/primitives/tx.js
index 374bfea4..84838934 100644
--- a/lib/primitives/tx.js
+++ b/lib/primitives/tx.js
@@ -423,6 +423,7 @@ TX.prototype.signatureHash = function signatureHash(index, prev, value, type, ve
   assert(index >= 0 && index < this.inputs.length);
   assert(prev instanceof Script);
   assert(typeof value === 'number');
+  assert(typeof type === 'number');
 
   // Traditional sighashing
   if (version === 0)