blob: fff22a2a8c5a64fbe489107b4391d6066948f672 [file] [log] [blame]
// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax
// Overwriting the constructor of an instance updates the protector
let x = [];
assertEquals(Array, x.map(()=>{}).constructor);
assertEquals(Array, x.filter(()=>{}).constructor);
assertEquals(Array, x.slice().constructor);
assertEquals(Array, x.splice().constructor);
assertEquals(Array, x.concat([1]).constructor);
assertEquals(1, x.concat([1])[0]);
class MyArray extends Array { }
Object.prototype.constructor = MyArray;
delete Array.prototype.constructor;
assertFalse(%SpeciesProtector());
assertEquals(MyArray, x.map(()=>{}).constructor);
assertEquals(MyArray, x.filter(()=>{}).constructor);
assertEquals(MyArray, x.slice().constructor);
assertEquals(MyArray, x.splice().constructor);
assertEquals(MyArray, x.concat([1]).constructor);
assertEquals(1, x.concat([1])[0]);