mirror of
https://github.com/tc39/test262.git
synced 2025-05-12 10:50:33 +02:00
27 lines
834 B
JavaScript
27 lines
834 B
JavaScript
// 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);
|