blob: d8e2ae5ddd5ba345c15a9f4d7fb70470735fca54 [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 an array instance's __proto__ 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 { }
x.__proto__ = MyArray.prototype;
assertTrue(%ArraySpeciesProtector());
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]);