Tim van der Lippe | fdbd42e | 2020-04-07 14:14:36 | [diff] [blame] | 1 | 'use strict'; |
| 2 | |
Tim van der Lippe | 2c89197 | 2021-07-29 15:22:50 | [diff] [blame] | 3 | var GetIntrinsic = require('get-intrinsic'); |
Tim van der Lippe | fdbd42e | 2020-04-07 14:14:36 | [diff] [blame] | 4 | |
Nikolay Vitkov | d76576c | 2024-12-02 14:10:15 | [diff] [blame] | 5 | var $TypeError = require('es-errors/type'); |
Tim van der Lippe | fdbd42e | 2020-04-07 14:14:36 | [diff] [blame] | 6 | |
| 7 | var $hasInstance = GetIntrinsic('Symbol.hasInstance', true); |
| 8 | |
| 9 | var Call = require('./Call'); |
| 10 | var GetMethod = require('./GetMethod'); |
| 11 | var IsCallable = require('./IsCallable'); |
| 12 | var OrdinaryHasInstance = require('./OrdinaryHasInstance'); |
| 13 | var ToBoolean = require('./ToBoolean'); |
| 14 | var Type = require('./Type'); |
| 15 | |
Nikolay Vitkov | d76576c | 2024-12-02 14:10:15 | [diff] [blame] | 16 | // https://262.ecma-international.org/6.0/#sec-instanceofoperator |
Tim van der Lippe | fdbd42e | 2020-04-07 14:14:36 | [diff] [blame] | 17 | |
| 18 | module.exports = function InstanceofOperator(O, C) { |
| 19 | if (Type(O) !== 'Object') { |
| 20 | throw new $TypeError('Assertion failed: Type(O) is not Object'); |
| 21 | } |
| 22 | var instOfHandler = $hasInstance ? GetMethod(C, $hasInstance) : void 0; |
| 23 | if (typeof instOfHandler !== 'undefined') { |
| 24 | return ToBoolean(Call(instOfHandler, C, [O])); |
| 25 | } |
| 26 | if (!IsCallable(C)) { |
| 27 | throw new $TypeError('`C` is not Callable'); |
| 28 | } |
| 29 | return OrdinaryHasInstance(C, O); |
| 30 | }; |