1 | 'use strict';
|
2 | var $ = require('../internals/export');
|
3 | var DESCRIPTORS = require('../internals/descriptors');
|
4 | var FORCED = require('../internals/forced-object-prototype-accessors-methods');
|
5 | var toObject = require('../internals/to-object');
|
6 | var toPrimitive = require('../internals/to-primitive');
|
7 | var getPrototypeOf = require('../internals/object-get-prototype-of');
|
8 | var getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;
|
9 |
|
10 |
|
11 |
|
12 | if (DESCRIPTORS) {
|
13 | $({ target: 'Object', proto: true, forced: FORCED }, {
|
14 | __lookupSetter__: function __lookupSetter__(P) {
|
15 | var O = toObject(this);
|
16 | var key = toPrimitive(P, true);
|
17 | var desc;
|
18 | do {
|
19 | if (desc = getOwnPropertyDescriptor(O, key)) return desc.set;
|
20 | } while (O = getPrototypeOf(O));
|
21 | }
|
22 | });
|
23 | }
|