| Leo Repp | 58b9f11 | 2021-11-22 11:57:47 +0100 | [diff] [blame^] | 1 | 'use strict'; |
| 2 | |
| 3 | var GetIntrinsic = require('get-intrinsic'); |
| 4 | |
| 5 | var $TypeError = GetIntrinsic('%TypeError%'); |
| 6 | |
| 7 | var callBound = require('call-bind/callBound'); |
| 8 | |
| 9 | var $push = callBound('Array.prototype.push'); |
| 10 | |
| 11 | var CodePointAt = require('./CodePointAt'); |
| 12 | var Type = require('./Type'); |
| 13 | |
| 14 | // https://262.ecma-international.org/11.0/#sec-utf16decodestring |
| 15 | |
| 16 | module.exports = function UTF16DecodeString(string) { |
| 17 | if (Type(string) !== 'String') { |
| 18 | throw new $TypeError('Assertion failed: `string` must be a String'); |
| 19 | } |
| 20 | var codePoints = []; |
| 21 | var size = string.length; |
| 22 | var position = 0; |
| 23 | while (position < size) { |
| 24 | var cp = CodePointAt(string, position); |
| 25 | $push(codePoints, cp['[[CodePoint]]']); |
| 26 | position += cp['[[CodeUnitCount]]']; |
| 27 | } |
| 28 | return codePoints; |
| 29 | }; |