Constnium/node_modules/es-abstract/2016/CompletePropertyDescriptor.js
2022-06-23 02:27:43 +02:00

39 lines
989 B
JavaScript

'use strict';
var has = require('has');
var assertRecord = require('../helpers/assertRecord');
var IsDataDescriptor = require('./IsDataDescriptor');
var IsGenericDescriptor = require('./IsGenericDescriptor');
var Type = require('./Type');
// https://ecma-international.org/ecma-262/6.0/#sec-completepropertydescriptor
module.exports = function CompletePropertyDescriptor(Desc) {
/* eslint no-param-reassign: 0 */
assertRecord(Type, 'Property Descriptor', 'Desc', Desc);
if (IsGenericDescriptor(Desc) || IsDataDescriptor(Desc)) {
if (!has(Desc, '[[Value]]')) {
Desc['[[Value]]'] = void 0;
}
if (!has(Desc, '[[Writable]]')) {
Desc['[[Writable]]'] = false;
}
} else {
if (!has(Desc, '[[Get]]')) {
Desc['[[Get]]'] = void 0;
}
if (!has(Desc, '[[Set]]')) {
Desc['[[Set]]'] = void 0;
}
}
if (!has(Desc, '[[Enumerable]]')) {
Desc['[[Enumerable]]'] = false;
}
if (!has(Desc, '[[Configurable]]')) {
Desc['[[Configurable]]'] = false;
}
return Desc;
};