| 'use strict'; |
|
|
| var callBind = require('call-bind-apply-helpers'); |
| var gOPD = require('gopd'); |
| var $TypeError = require('es-errors/type'); |
|
|
| |
| var obj = {}; |
| try { |
| obj.__proto__ = null; |
| } catch (e) { |
| if (!e || typeof e !== 'object' || !('code' in e) || e.code !== 'ERR_PROTO_ACCESS') { |
| throw e; |
| } |
| } |
|
|
| var hasProtoMutator = !('toString' in obj); |
|
|
| |
| var desc = gOPD && gOPD(Object.prototype, ('__proto__')); |
|
|
| |
| module.exports = hasProtoMutator && ( |
| |
| (!!desc && typeof desc.set === 'function' && (callBind([desc.set]))) |
| || function setDunder(object, proto) { |
| |
| if (object == null) { |
| throw new $TypeError('set Object.prototype.__proto__ called on null or undefined'); |
| } |
| |
| (object).__proto__ = proto; |
| return proto; |
| } |
| ); |
|
|