lru.

lib/bcoin/lru.js

@@ -147,7 +147,7 @@ LRU.prototype.set = function set(key, value) {
     return;
   }
 
-  item = { key: key, value: value };
+  item = new LRUItem(key, value);
 
   this.data[key] = item;
 
@@ -307,6 +307,21 @@ LRU.prototype.toArray = function toArray() {
   return items;
 };
 
+/**
+ * Represents an LRU item.
+ * @constructor
+ * @private
+ * @param {String} key
+ * @param {Object} value
+ */
+
+function LRUItem(key, value) {
+  this.key = key;
+  this.value = value;
+  this.next = null;
+  this.prev = null;
+}
+
 /*
  * Expose
  */