From d329d6e92f950a4e2baee5543d88628733818123 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Sun, 3 Apr 2016 03:02:19 -0700
Subject: [PATCH] add batch.clear to bst.

---
 lib/bcoin/bst.js | 8 +++++++-
 package.json     | 1 -
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib/bcoin/bst.js b/lib/bcoin/bst.js
index 15cf39bd..ff96e6ae 100644
--- a/lib/bcoin/bst.js
+++ b/lib/bcoin/bst.js
@@ -493,6 +493,12 @@ Batch.prototype.write = function write(callback) {
   return this;
 };
 
+Batch.prototype.clear = function clear(callback) {
+  assert(this.tree, 'Already written.');
+  this.ops.length = 0;
+  return this;
+};
+
 /**
  * Iterator
  */
@@ -560,7 +566,7 @@ Iterator.prototype.next = function(callback) {
   if (this.options.valueAsBuffer === false)
     value = value.toString('utf8');
 
-  return utils.asyncify(callback)(null, key, value);
+  utils.asyncify(callback)(null, key, value);
 };
 
 Iterator.prototype.seek = function seek(key) {
diff --git a/package.json b/package.json
index a13f729b..b0e8b92c 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,6 @@
     "browserify": "13.0.0",
     "hash.js": "1.0.3",
     "level-js": "2.2.3",
-    "memdown": "1.1.2",
     "mocha": "1.21.5",
     "uglify-js": "2.6.1",
     "v8-profiler": "5.6.0"