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30 lines
753 B
30 lines
753 B
4 years ago
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'use strict';
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var GetIntrinsic = require('get-intrinsic');
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var $TypeError = GetIntrinsic('%TypeError%');
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var callBound = require('call-bind/callBound');
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var $push = callBound('Array.prototype.push');
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var CodePointAt = require('./CodePointAt');
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var Type = require('./Type');
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// https://262.ecma-international.org/11.0/#sec-utf16decodestring
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module.exports = function UTF16DecodeString(string) {
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if (Type(string) !== 'String') {
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throw new $TypeError('Assertion failed: `string` must be a String');
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}
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var codePoints = [];
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var size = string.length;
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var position = 0;
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while (position < size) {
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var cp = CodePointAt(string, position);
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$push(codePoints, cp['[[CodePoint]]']);
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position += cp['[[CodeUnitCount]]'];
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}
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return codePoints;
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};
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