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node_modules/es-abstract/2017/IteratorNext.js

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+'use strict';
+
+var $TypeError = require('es-errors/type');
+var isObject = require('es-object-atoms/isObject');
+
+var Invoke = require('./Invoke');
+
+// https://262.ecma-international.org/6.0/#sec-iteratornext
+
+module.exports = function IteratorNext(iterator, value) {
+	var result = Invoke(iterator, 'next', arguments.length < 2 ? [] : [value]);
+	if (!isObject(result)) {
+		throw new $TypeError('iterator next must return an object');
+	}
+	return result;
+};