'use strict';
// https://github.com/tc39/proposal-iterator-helpers
var $ = require('../internals/export');
-var aFunction = require('../internals/a-function');
+var global = require('../internals/global');
+var call = require('../internals/function-call');
+var aCallable = require('../internals/a-callable');
var anObject = require('../internals/an-object');
var getBuiltIn = require('../internals/get-built-in');
var Promise = getBuiltIn('Promise');
+var TypeError = global.TypeError;
$({ target: 'AsyncIterator', proto: true, real: true }, {
reduce: function reduce(reducer /* , initialValue */) {
var iterator = anObject(this);
- var next = aFunction(iterator.next);
+ var next = aCallable(iterator.next);
var noInitial = arguments.length < 2;
var accumulator = noInitial ? undefined : arguments[1];
- aFunction(reducer);
+ aCallable(reducer);
return new Promise(function (resolve, reject) {
var loop = function () {
try {
- Promise.resolve(anObject(next.call(iterator))).then(function (step) {
+ Promise.resolve(anObject(call(next, iterator))).then(function (step) {
try {
if (anObject(step).done) {
noInitial ? reject(TypeError('Reduce of empty iterator with no initial value')) : resolve(accumulator);