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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-dataview-buffer-byteoffset-bytelength
description: >
The new instance is extensible
info: |
24.2.2.1 DataView (buffer, byteOffset, byteLength )
...
12. Let O be ? OrdinaryCreateFromConstructor(NewTarget, "%DataViewPrototype%",
« [[DataView]], [[ViewedArrayBuffer]], [[ByteLength]], [[ByteOffset]] »).
...
17. Return O.
9.1.13 OrdinaryCreateFromConstructor ( constructor, intrinsicDefaultProto [ ,
internalSlotsList ] )
...
3. Return ObjectCreate(proto, internalSlotsList).
9.1.12 ObjectCreate (proto [ , internalSlotsList ])
...
5. Set the [[Extensible]] internal slot of obj to true.
...
includes: [propertyHelper.js]
---*/
var buffer = new ArrayBuffer(8);
var sample = new DataView(buffer, 0);
assert(Object.isExtensible(sample));
Object.defineProperty(sample, 'baz', {});
assert(sample.hasOwnProperty('baz'), 'confirms extensibility adding a new property');
Object.defineProperty(sample, 'foo', {
value: 'bar',
writable: true,
configurable: true,
enumerable: false,
});
verifyProperty(sample, 'foo', {
value: 'bar',
writable: true,
configurable: true,
enumerable: false,
});
reportCompare(0, 0);
|
