source: frontend/node_modules/es-iterator-helpers/Iterator/implementation.js

'use strict';

var GetIntrinsic = require('get-intrinsic');
var hasPropertyDescriptors = require('has-property-descriptors')();

var $TypeError = require('es-errors/type');

var $defineProperty = hasPropertyDescriptors && GetIntrinsic('%Object.defineProperty%', true);

var iterProto = require('iterator.prototype');
var callBound = require('call-bound');

var $isPrototypeOf = callBound('Object.prototype.isPrototypeOf');

var $Iterator = typeof Iterator === 'function' ? Iterator : function Iterator() {
        if (
                !(this instanceof Iterator)
                || this.constructor === Iterator
                || !$isPrototypeOf(Iterator, this.constructor)
        ) {
                throw new $TypeError('`Iterator` can not be called or constructed directly');
        }
};

if ($Iterator.prototype !== iterProto) {
        $Iterator.prototype = iterProto;
}
$defineProperty($Iterator, 'prototype', { writable: false });

module.exports = $Iterator;