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; | |
var callBind = require('call-bind-apply-helpers'); | |
var gOPD = require('gopd'); | |
var $TypeError = require('es-errors/type'); | |
/** @type {{ __proto__?: object | null }} */ | |
var obj = {}; | |
try { | |
obj.__proto__ = null; // eslint-disable-line no-proto | |
} catch (e) { | |
if (!e || typeof e !== 'object' || !('code' in e) || e.code !== 'ERR_PROTO_ACCESS') { | |
throw e; | |
} | |
} | |
var hasProtoMutator = !('toString' in obj); | |
// eslint-disable-next-line no-extra-parens | |
var desc = gOPD && gOPD(Object.prototype, /** @type {keyof typeof Object.prototype} */ ('__proto__')); | |
/** @type {import('./set')} */ | |
module.exports = hasProtoMutator && ( | |
// eslint-disable-next-line no-extra-parens | |
(!!desc && typeof desc.set === 'function' && /** @type {import('./set')} */ (callBind([desc.set]))) | |
|| /** @type {import('./set')} */ function setDunder(object, proto) { | |
// this is node v0.10 or older, which doesn't have Object.setPrototypeOf and has undeniable __proto__ | |
if (object == null) { // eslint-disable-line eqeqeq | |
throw new $TypeError('set Object.prototype.__proto__ called on null or undefined'); | |
} | |
// eslint-disable-next-line no-proto, no-param-reassign, no-extra-parens | |
/** @type {{ __proto__?: object | null }} */ (object).__proto__ = proto; | |
return proto; | |
} | |
); | |