23 lines
677 B
JavaScript
23 lines
677 B
JavaScript
|
// Copyright 2017 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 --no-stress-opt
|
||
|
|
|
||
|
|
function f(a, i, v) { a[i] = v; }
|
||
|
|
f("make it generic", 0, 0);
|
||
|
|
|
||
|
|
(function TestIsConcatSpreadableProtector() {
|
||
|
|
var o = {length: 1, '0': 99};
|
||
|
|
%OptimizeObjectForAddingMultipleProperties(o, 0);
|
||
|
|
f(o, Symbol.isConcatSpreadable, true);
|
||
|
|
assertEquals([99], [].concat(o));
|
||
|
|
})();
|
||
|
|
|
||
|
|
(function TestSpeciesProtector() {
|
||
|
|
function MyArray() {}
|
||
|
|
assertTrue(%SpeciesProtector());
|
||
|
|
f(Array.prototype, "constructor", MyArray);
|
||
|
|
assertFalse(%SpeciesProtector());
|
||
|
|
})();
|