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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: >
Return abrupt from buffer.constructor.@@species.prototype
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.
...
18. Else,
a. Let bufferConstructor be ? SpeciesConstructor(srcData, %ArrayBuffer%).
b. Let data be ? AllocateArrayBuffer(bufferConstructor, byteLength).
...
7.3.20 SpeciesConstructor ( O, defaultConstructor )
...
5. Let S be ? Get(C, @@species).
6. If S is either undefined or null, return defaultConstructor.
7. If IsConstructor(S) is true, return S.
...
24.1.1.1 AllocateArrayBuffer ( constructor, byteLength )
...
1. Let obj be ? OrdinaryCreateFromConstructor(constructor,
"%ArrayBufferPrototype%", « [[ArrayBufferData]], [[ArrayBufferByteLength]] » )
...
includes: [testBigIntTypedArray.js]
features: [BigInt, Symbol.species, TypedArray]
---*/
var sample1 = new BigInt64Array();
var sample2 = new BigUint64Array();
testWithBigIntTypedArrayConstructors(function(TA) {
var sample = TA === BigInt64Array ? sample2 : sample1;
var ctor = {};
var called = 0;
sample.buffer.constructor = ctor;
ctor[Symbol.species] = function() {called++;}.bind(null);
Object.defineProperty(ctor[Symbol.species], "prototype", {
get: function() {
throw new Test262Error();
}
});
assert.throws(Test262Error, function() {
new TA(sample);
});
assert.sameValue(called, 0);
});
|
