41 lines
1.1 KiB
Plaintext
41 lines
1.1 KiB
Plaintext
'use strict';
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var GetIntrinsic = require('get-intrinsic');
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var IsCallable = require('es-abstract/2024/IsCallable');
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var isObject = require('es-abstract/helpers/isObject');
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var whichBuiltinType = require('which-builtin-type');
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var $TypeError = require('es-errors/type');
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var gPO = require('get-proto');
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var $Object = require('es-object-atoms');
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module.exports = function getPrototypeOf(O) {
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if (!isObject(O)) {
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throw new $TypeError('Reflect.getPrototypeOf called on non-object');
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}
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if (gPO) {
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return gPO(O);
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}
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var type = whichBuiltinType(O);
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if (type) {
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var intrinsic = GetIntrinsic('%' + type + '.prototype%', true);
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if (intrinsic) {
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return intrinsic;
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}
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}
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if (IsCallable(O.constructor)) {
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return O.constructor.prototype;
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}
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if (O instanceof Object) {
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return $Object.prototype;
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}
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/*
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* Correctly return null for Objects created with `Object.create(null)` (shammed or native) or `{ __proto__: null}`. Also returns null for
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* cross-realm objects on browsers that lack `__proto__` support (like IE <11), but that's the best we can do.
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*/
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return null;
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};
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