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- 'use strict';
- var $export = require('./_export');
- var toObject = require('./_to-object');
- var toPrimitive = require('./_to-primitive');
- var getPrototypeOf = require('./_object-gpo');
- var 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);
- var K = toPrimitive(P, true);
- var D;
- do {
- if (D = getOwnPropertyDescriptor(O, K)) return D.set;
- } while (O = getPrototypeOf(O));
- }
- });
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