| 'use strict'; |
| |
| var GetIntrinsic = require('get-intrinsic'); |
| var callBound = require('call-bind/callBound'); |
| |
| var $TypeError = GetIntrinsic('%TypeError%'); |
| |
| var $push = callBound('Array.prototype.push'); |
| |
| var IsArray = require('./IsArray'); |
| |
| var isByteValue = require('../helpers/isByteValue'); |
| |
| // https://ecma-international.org/ecma-262/12.0/#sec-bytelistbitwiseop |
| |
| module.exports = function ByteListBitwiseOp(op, xBytes, yBytes) { |
| if (op !== '&' && op !== '^' && op !== '|') { |
| throw new $TypeError('Assertion failed: `op` must be `&`, `^`, or `|`'); |
| } |
| if (!IsArray(xBytes) || !IsArray(yBytes) || xBytes.length !== yBytes.length) { |
| throw new $TypeError('Assertion failed: `xBytes` and `yBytes` must be same-length sequences of byte values (an integer 0-255, inclusive)'); |
| } |
| |
| var result = []; |
| |
| for (var i = 0; i < xBytes.length; i += 1) { |
| var xByte = xBytes[i]; |
| var yByte = yBytes[i]; |
| if (!isByteValue(xByte) || !isByteValue(yByte)) { |
| throw new $TypeError('Assertion failed: `xBytes` and `yBytes` must be same-length sequences of byte values (an integer 0-255, inclusive)'); |
| } |
| var resultByte; |
| if (op === '&') { |
| resultByte = xByte & yByte; |
| } else if (op === '^') { |
| resultByte = xByte ^ yByte; |
| } else { |
| resultByte = xByte | yByte; |
| } |
| $push(result, resultByte); |
| } |
| |
| return result; |
| }; |