From 150c09786ae6ed4473be86596da096edd5641f38 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Wed, 24 Aug 2016 08:49:35 -0700
Subject: [PATCH] ldb: refactor.

---
 lib/db/ldb.js | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/lib/db/ldb.js b/lib/db/ldb.js
index 6e84aa0a..d22bcf56 100644
--- a/lib/db/ldb.js
+++ b/lib/db/ldb.js
@@ -70,31 +70,28 @@ ldb.getBackend = function getBackend(db) {
   if (!db)
     db = 'memory';
 
-  if (db === 'leveldb')
-    name = 'leveldown';
-  else if (db === 'rocksdb')
-    name = 'rocksdown';
-  else if (db === 'lmdb')
-    name = 'lmdb';
-  else if (db === 'memory')
-    name = 'rbt';
-  else
-    name = db;
-
-  switch (name) {
+  switch (db) {
+    case 'leveldb':
     case 'leveldown':
+      name = 'leveldown';
       ext = 'ldb';
       break;
+    case 'rocksdb':
     case 'rocksdown':
+      name = 'rocksdown';
       ext = 'rdb';
       break;
     case 'lmdb':
+      name = 'lmdb';
       ext = 'lmdb';
       break;
+    case 'memory':
     case 'rbt':
+      name = 'rbt';
       ext = 'mem';
       break;
     default:
+      name = db;
       ext = 'db';
       break;
   }