| 'use strict'; |
| |
| var $TypeError = require('es-errors/type'); |
| |
| var IteratorComplete = require('./IteratorComplete'); |
| var IteratorNext = require('./IteratorNext'); |
| |
| var isIteratorRecord = require('../helpers/records/iterator-record-2023'); |
| |
| // https://262.ecma-international.org/14.0/#sec-iteratorstep |
| |
| module.exports = function IteratorStep(iteratorRecord) { |
| if (!isIteratorRecord(iteratorRecord)) { |
| throw new $TypeError('Assertion failed: `iteratorRecord` must be an Iterator Record'); // step 1 |
| } |
| |
| var result = IteratorNext(iteratorRecord); // step 1 |
| var done = IteratorComplete(result); // step 2 |
| return done === true ? false : result; // steps 3-4 |
| }; |
| |