don't store input in enumerator

Author: bekzod

lib/es6-promise/enumerator.js

@@ -31,7 +31,6 @@ function Enumerator(Constructor, input) {
   }
 
   if (isArray(input)) {
-    this._input     = input;
     this.length     = input.length;
     this._remaining = input.length;
 
@@ -41,7 +40,7 @@ function Enumerator(Constructor, input) {
       fulfill(this.promise, this._result);
     } else {
       this.length = this.length || 0;
-      this._enumerate();
+      this._enumerate(input);
       if (this._remaining === 0) {
         fulfill(this.promise, this._result);
       }
@@ -55,11 +54,9 @@ function validationError() {
   return new Error('Array Methods must be provided an Array');
 };
 
-Enumerator.prototype._enumerate = function() {
-  let { length, _input } = this;
-
-  for (let i = 0; this._state === PENDING && i < length; i++) {
-    this._eachEntry(_input[i], i);
+Enumerator.prototype._enumerate = function(input) {
+  for (let i = 0; this._state === PENDING && i < input.length; i++) {
+    this._eachEntry(input[i], i);
   }
 };