source: frontend/node_modules/es-abstract/2025/IteratorNext.js

'use strict';

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

var Call = require('./Call');

var isIteratorRecord = require('../helpers/records/iterator-record');

// https://262.ecma-international.org/16.0/#sec-iteratornext

module.exports = function IteratorNext(iteratorRecord) {
        if (!isIteratorRecord(iteratorRecord)) {
                throw new $TypeError('Assertion failed: `iteratorRecord` must be an Iterator Record'); // step 1
        }

        var result;
        try {
                if (arguments.length < 2) { // step 1
                        result = Call(iteratorRecord['[[NextMethod]]'], iteratorRecord['[[Iterator]]']); // step 1.a
                } else { // step 2
                        result = Call(iteratorRecord['[[NextMethod]]'], iteratorRecord['[[Iterator]]'], [arguments[1]]); // step 2.a
                }
        } catch (e) { // step 3
                // eslint-disable-next-line no-param-reassign
                iteratorRecord['[[Done]]'] = true; // step 3.a
                throw e; // step 3.b
        }

        if (!isObject(result)) { // step 5
                // eslint-disable-next-line no-param-reassign
                iteratorRecord['[[Done]]'] = true; // step 5.a
                throw new $TypeError('iterator next must return an object'); // step 5.b
        }
        return result; // step 6
};