| 'use strict'; |
|
|
| var callBind = require('call-bind-apply-helpers'); |
| var gOPD = require('gopd'); |
|
|
| var hasProtoAccessor; |
| try { |
| |
| hasProtoAccessor = ([]).__proto__ === Array.prototype; |
| } catch (e) { |
| if (!e || typeof e !== 'object' || !('code' in e) || e.code !== 'ERR_PROTO_ACCESS') { |
| throw e; |
| } |
| } |
|
|
| |
| var desc = !!hasProtoAccessor && gOPD && gOPD(Object.prototype, ('__proto__')); |
|
|
| var $Object = Object; |
| var $getPrototypeOf = $Object.getPrototypeOf; |
|
|
| |
| module.exports = desc && typeof desc.get === 'function' |
| ? callBind([desc.get]) |
| : typeof $getPrototypeOf === 'function' |
| ? function getDunder(value) { |
| |
| return $getPrototypeOf(value == null ? value : $Object(value)); |
| } |
| : false; |
|
|