source: imaps-frontend/node_modules/es-abstract/2021/ByteListBitwiseOp.js

main
Last change on this file was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago

Update repo after prototype presentation

  • Property mode set to 100644
File size: 1.2 KB
Line 
1'use strict';
2
3var callBound = require('call-bind/callBound');
4
5var $TypeError = require('es-errors/type');
6
7var $push = callBound('Array.prototype.push');
8
9var IsArray = require('./IsArray');
10
11var isByteValue = require('../helpers/isByteValue');
12
13// https://262.ecma-international.org/12.0/#sec-bytelistbitwiseop
14
15module.exports = function ByteListBitwiseOp(op, xBytes, yBytes) {
16 if (op !== '&' && op !== '^' && op !== '|') {
17 throw new $TypeError('Assertion failed: `op` must be `&`, `^`, or `|`');
18 }
19 if (!IsArray(xBytes) || !IsArray(yBytes) || xBytes.length !== yBytes.length) {
20 throw new $TypeError('Assertion failed: `xBytes` and `yBytes` must be same-length sequences of byte values (an integer 0-255, inclusive)');
21 }
22
23 var result = [];
24
25 for (var i = 0; i < xBytes.length; i += 1) {
26 var xByte = xBytes[i];
27 var yByte = yBytes[i];
28 if (!isByteValue(xByte) || !isByteValue(yByte)) {
29 throw new $TypeError('Assertion failed: `xBytes` and `yBytes` must be same-length sequences of byte values (an integer 0-255, inclusive)');
30 }
31 var resultByte;
32 if (op === '&') {
33 resultByte = xByte & yByte;
34 } else if (op === '^') {
35 resultByte = xByte ^ yByte;
36 } else {
37 resultByte = xByte | yByte;
38 }
39 $push(result, resultByte);
40 }
41
42 return result;
43};
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