You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
23 lines
911 B
23 lines
911 B
'use strict'; |
|
var $ = require('../internals/export'); |
|
var DESCRIPTORS = require('../internals/descriptors'); |
|
var FORCED = require('../internals/object-prototype-accessors-forced'); |
|
var toObject = require('../internals/to-object'); |
|
var toPropertyKey = require('../internals/to-property-key'); |
|
var getPrototypeOf = require('../internals/object-get-prototype-of'); |
|
var getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f; |
|
|
|
// `Object.prototype.__lookupSetter__` method |
|
// https://tc39.es/ecma262/#sec-object.prototype.__lookupSetter__ |
|
if (DESCRIPTORS) { |
|
$({ target: 'Object', proto: true, forced: FORCED }, { |
|
__lookupSetter__: function __lookupSetter__(P) { |
|
var O = toObject(this); |
|
var key = toPropertyKey(P); |
|
var desc; |
|
do { |
|
if (desc = getOwnPropertyDescriptor(O, key)) return desc.set; |
|
} while (O = getPrototypeOf(O)); |
|
} |
|
}); |
|
}
|
|
|