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// Copyright (C) 2016 The V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-arraybuffer.isview
description: >
Return true if arg is an instance from a subclass of DataView
info: |
24.1.3.1 ArrayBuffer.isView ( arg )
1. If Type(arg) is not Object, return false.
2. If arg has a [[ViewedArrayBuffer]] internal slot, return true.
3. Return false.
features: [class, DataView]
---*/
class DV extends DataView {}
var sample = new DV(new ArrayBuffer(1), 0, 0);
assert(ArrayBuffer.isView(sample));
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