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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.
/*---
es6id: 24.1.2
description: Subclassing the ArrayBuffer object
info: |
24.1.2 The ArrayBuffer Constructor
...
The ArrayBuffer constructor is designed to be subclassable. It may be used as
the value of an extends clause of a class definition. Subclass constructors
that intend to inherit the specified ArrayBuffer behaviour must include a
super call to the ArrayBuffer constructor to create and initialize subclass
instances with the internal state necessary to support the
ArrayBuffer.prototype built-in methods.
---*/
class AB extends ArrayBuffer {}
var ab = new AB(4);
var sliced = ab.slice(0, 1);
assert(sliced instanceof AB);
assert(sliced instanceof ArrayBuffer);
reportCompare(0, 0);