2 var $export = require('./_export')
3 , toObject = require('./_to-object')
4 , toPrimitive = require('./_to-primitive')
5 , getPrototypeOf = require('./_object-gpo')
6 , getOwnPropertyDescriptor = require('./_object-gopd').f;
8 // B.2.2.4 Object.prototype.__lookupGetter__(P)
9 require('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {
10 __lookupGetter__: function __lookupGetter__(P){
11 var O = toObject(this)
12 , K = toPrimitive(P, true)
15 if(D = getOwnPropertyDescriptor(O, K))return D.get;
16 } while(O = getPrototypeOf(O));