v8/test/mjsunit/regress/regress-crbug-865312.js

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// Copyright 2018 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.
const intArrayConstructors = [
Uint8Array,
Int8Array,
Uint16Array,
Int16Array,
Uint32Array,
Int32Array,
Uint8ClampedArray
];
const floatArrayConstructors = [
Float32Array,
Float64Array
];
const typedArrayConstructors = [...intArrayConstructors,
...floatArrayConstructors];
for (let constructor of typedArrayConstructors) {
// Shadowing the length of a TypedArray should work for Array.p.fill,
// but not crash it.
let array = new constructor([2, 2]);
assertEquals(2, array.length);
Object.defineProperty(array, 'length', {value: 5});
Array.prototype.fill.call(array, 5);
assertArrayEquals([5, 5], [array[0], array[1]]);
assertEquals(undefined, array[2]);
}