| 'use strict'; |
| |
| var GetIntrinsic = require('get-intrinsic'); |
| |
| var $TypeError = GetIntrinsic('%TypeError%'); |
| |
| var Type = require('./Type'); |
| var IsDataDescriptor = require('./IsDataDescriptor'); |
| var IsAccessorDescriptor = require('./IsAccessorDescriptor'); |
| |
| var assertRecord = require('../helpers/assertRecord'); |
| |
| // https://262.ecma-international.org/5.1/#sec-8.10.4 |
| |
| module.exports = function FromPropertyDescriptor(Desc) { |
| if (typeof Desc === 'undefined') { |
| return Desc; |
| } |
| |
| assertRecord(Type, 'Property Descriptor', 'Desc', Desc); |
| |
| if (IsDataDescriptor(Desc)) { |
| return { |
| value: Desc['[[Value]]'], |
| writable: !!Desc['[[Writable]]'], |
| enumerable: !!Desc['[[Enumerable]]'], |
| configurable: !!Desc['[[Configurable]]'] |
| }; |
| } else if (IsAccessorDescriptor(Desc)) { |
| return { |
| get: Desc['[[Get]]'], |
| set: Desc['[[Set]]'], |
| enumerable: !!Desc['[[Enumerable]]'], |
| configurable: !!Desc['[[Configurable]]'] |
| }; |
| } |
| throw new $TypeError('FromPropertyDescriptor must be called with a fully populated Property Descriptor'); |
| |
| }; |