| Path : /var/www/html/infraai.ai/frontend/node_modules/es-abstract/2016/ |
|
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| Current File : /var/www/html/infraai.ai/frontend/node_modules/es-abstract/2016/TestIntegrityLevel.js |
'use strict';
var $gOPD = require('gopd');
var $TypeError = require('es-errors/type');
var every = require('../helpers/every');
var OwnPropertyKeys = require('own-keys');
var isObject = require('es-object-atoms/isObject');
var IsDataDescriptor = require('./IsDataDescriptor');
var IsExtensible = require('./IsExtensible');
var ToPropertyDescriptor = require('./ToPropertyDescriptor');
// https://262.ecma-international.org/6.0/#sec-testintegritylevel
module.exports = function TestIntegrityLevel(O, level) {
if (!isObject(O)) {
throw new $TypeError('Assertion failed: Type(O) is not Object');
}
if (level !== 'sealed' && level !== 'frozen') {
throw new $TypeError('Assertion failed: `level` must be `"sealed"` or `"frozen"`');
}
var status = IsExtensible(O);
if (status || !$gOPD) {
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;
});
};