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32 lines
1.2 KiB
32 lines
1.2 KiB
4 weeks ago
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'use strict';
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var DESCRIPTORS = require('../internals/descriptors');
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var defineBuiltInAccessor = require('../internals/define-built-in-accessor');
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var isObject = require('../internals/is-object');
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var isPossiblePrototype = require('../internals/is-possible-prototype');
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var toObject = require('../internals/to-object');
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var requireObjectCoercible = require('../internals/require-object-coercible');
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// eslint-disable-next-line es/no-object-getprototypeof -- safe
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var getPrototypeOf = Object.getPrototypeOf;
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// eslint-disable-next-line es/no-object-setprototypeof -- safe
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var setPrototypeOf = Object.setPrototypeOf;
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var ObjectPrototype = Object.prototype;
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var PROTO = '__proto__';
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// `Object.prototype.__proto__` accessor
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// https://tc39.es/ecma262/#sec-object.prototype.__proto__
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if (DESCRIPTORS && getPrototypeOf && setPrototypeOf && !(PROTO in ObjectPrototype)) try {
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defineBuiltInAccessor(ObjectPrototype, PROTO, {
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configurable: true,
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get: function __proto__() {
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return getPrototypeOf(toObject(this));
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},
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set: function __proto__(proto) {
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var O = requireObjectCoercible(this);
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if (isPossiblePrototype(proto) && isObject(O)) {
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setPrototypeOf(O, proto);
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}
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}
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});
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} catch (error) { /* empty */ }
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