hexo/node_modules/es-abstract/2018/OrdinaryHasInstance.js

26 lines
638 B
JavaScript

'use strict';
var GetIntrinsic = require('get-intrinsic');
var $TypeError = GetIntrinsic('%TypeError%');
var Get = require('./Get');
var IsCallable = require('./IsCallable');
var Type = require('./Type');
// https://262.ecma-international.org/6.0/#sec-ordinaryhasinstance
module.exports = function OrdinaryHasInstance(C, O) {
if (!IsCallable(C)) {
return false;
}
if (Type(O) !== 'Object') {
return false;
}
var P = Get(C, 'prototype');
if (Type(P) !== 'Object') {
throw new $TypeError('OrdinaryHasInstance called on an object with an invalid prototype property.');
}
return O instanceof C;
};