mirror of
https://github.com/joelwmale/webhook-action.git
synced 2024-12-11 08:24:31 +01:00
26 lines
690 B
JavaScript
26 lines
690 B
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
var GetIntrinsic = require('get-intrinsic');
|
||
|
|
|
||
|
|
var $TypeError = GetIntrinsic('%TypeError%');
|
||
|
|
var $fromCharCode = GetIntrinsic('%String.fromCharCode%');
|
||
|
|
|
||
|
|
var floor = require('./floor');
|
||
|
|
var modulo = require('./modulo');
|
||
|
|
|
||
|
|
var isCodePoint = require('../helpers/isCodePoint');
|
||
|
|
|
||
|
|
// https://ecma-international.org/ecma-262/7.0/#sec-utf16encoding
|
||
|
|
|
||
|
|
module.exports = function UTF16Encoding(cp) {
|
||
|
|
if (!isCodePoint(cp)) {
|
||
|
|
throw new $TypeError('Assertion failed: `cp` must be >= 0 and <= 0x10FFFF');
|
||
|
|
}
|
||
|
|
if (cp <= 65535) {
|
||
|
|
return cp;
|
||
|
|
}
|
||
|
|
var cu1 = floor((cp - 65536) / 1024) + 0xD800;
|
||
|
|
var cu2 = modulo(cp - 65536, 1024) + 0xDC00;
|
||
|
|
return $fromCharCode(cu1) + $fromCharCode(cu2);
|
||
|
|
};
|