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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-typedarray-typedarray
description: >
Use default ArrayBuffer constructor on null buffer.constructor.@@species
info: |
22.2.4.3 TypedArray ( typedArray )
This description applies only if the TypedArray function is called with at
least one argument and the Type of the first argument is Object and that
object has a [[TypedArrayName]] internal slot.
...
17. If SameValue(elementType, srcType) is true, then
a. Let data be ? CloneArrayBuffer(srcData, srcByteOffset).
...
24.1.1.4 CloneArrayBuffer ( srcBuffer, srcByteOffset [ , cloneConstructor ] )
...
2. If cloneConstructor is not present, then
a. Let cloneConstructor be ? SpeciesConstructor(srcBuffer, %ArrayBuffer%).
...
7.3.20 SpeciesConstructor ( O, defaultConstructor )
...
5. Let S be ? Get(C, @@species).
6. If S is either undefined or null, return defaultConstructor.
...
includes: [testTypedArray.js]
features: [Symbol.species, TypedArray]
---*/
testWithTypedArrayConstructors(function(TA) {
var sample = new TA(4);
var ctor = {};
sample.buffer.constructor = ctor;
ctor[Symbol.species] = null;
var typedArray = new TA(sample);
assert.sameValue(
Object.getPrototypeOf(typedArray.buffer),
ArrayBuffer.prototype,
"buffer ctor is not called when species is null"
);
});
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