mirror of https://github.com/tc39/test262.git
47 lines
1.4 KiB
JavaScript
47 lines
1.4 KiB
JavaScript
// 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: >
|
|
Use newTarget's custom constructor prototype if Object
|
|
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 ] )
|
|
|
|
...
|
|
2. Let proto be ? GetPrototypeFromConstructor(constructor,
|
|
intrinsicDefaultProto).
|
|
3. Return ObjectCreate(proto, internalSlotsList).
|
|
|
|
9.1.15 GetPrototypeFromConstructor ( constructor, intrinsicDefaultProto )
|
|
|
|
...
|
|
3. Let proto be ? Get(constructor, "prototype").
|
|
4. If Type(proto) is not Object, then
|
|
a. Let realm be ? GetFunctionRealm(constructor).
|
|
b. Let proto be realm's intrinsic object named intrinsicDefaultProto.
|
|
5. Return proto.
|
|
...
|
|
features: [Reflect.construct]
|
|
---*/
|
|
|
|
var buffer = new ArrayBuffer(8);
|
|
|
|
function newTarget() {}
|
|
var proto = {};
|
|
newTarget.prototype = proto;
|
|
|
|
var sample = Reflect.construct(DataView, [buffer, 0], newTarget);
|
|
|
|
assert.sameValue(sample.constructor, Object);
|
|
assert.sameValue(Object.getPrototypeOf(sample), proto);
|