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- 'use strict';
- var $export = require('./_export')
- , toObject = require('./_to-object')
- , toPrimitive = require('./_to-primitive')
- , getPrototypeOf = require('./_object-gpo')
- , getOwnPropertyDescriptor = require('./_object-gopd').f;
- // B.2.2.5 Object.prototype.__lookupSetter__(P)
- require('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {
- __lookupSetter__: function __lookupSetter__(P){
- var O = toObject(this)
- , K = toPrimitive(P, true)
- , D;
- do {
- if(D = getOwnPropertyDescriptor(O, K))return D.set;
- } while(O = getPrototypeOf(O));
- }
- });
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