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codeql-action/node_modules/es-abstract/2022/TestIntegrityLevel.js
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'use strict'; | |
var GetIntrinsic = require('get-intrinsic'); | |
var $gOPD = require('gopd'); | |
var $TypeError = GetIntrinsic('%TypeError%'); | |
var every = require('../helpers/every'); | |
var OwnPropertyKeys = require('../helpers/OwnPropertyKeys'); | |
var IsDataDescriptor = require('./IsDataDescriptor'); | |
var IsExtensible = require('./IsExtensible'); | |
var ToPropertyDescriptor = require('./ToPropertyDescriptor'); | |
var Type = require('./Type'); | |
// https://262.ecma-international.org/6.0/#sec-testintegritylevel | |
module.exports = function TestIntegrityLevel(O, level) { | |
if (Type(O) !== 'Object') { | |
throw new $TypeError('Assertion failed: Type(O) is not Object'); | |
} | |
if (level !== 'sealed' && level !== 'frozen') { | |
throw new $TypeError('Assertion failed: `level` must be `"sealed"` or `"frozen"`'); | |
} | |
var status = IsExtensible(O); | |
if (status) { | |
return false; | |
} | |
var theKeys = OwnPropertyKeys(O); | |
return theKeys.length === 0 || every(theKeys, function (k) { | |
var currentDesc = $gOPD(O, k); | |
if (typeof currentDesc !== 'undefined') { | |
if (currentDesc.configurable) { | |
return false; | |
} | |
if (level === 'frozen' && IsDataDescriptor(ToPropertyDescriptor(currentDesc)) && currentDesc.writable) { | |
return false; | |
} | |
} | |
return true; | |
}); | |
}; |