// Copyright (C) 2020 Rick Waldron. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-%typedarray%.prototype.includes
description: >
Returns false if buffer is detached after ValidateTypedArray and searchElement is a value
info: |
%TypedArray%.prototype.includes ( searchElement [ , fromIndex ] )
The interpretation and use of the arguments of %TypedArray%.prototype.includes are the same as for Array.prototype.includes as defined in 22.1.3.13.
When the includes method is called with one or two arguments, the following steps are taken:
Let O be the this value.
Perform ? ValidateTypedArray(O).
Let len be O.[[ArrayLength]].
If len is 0, return false.
Let n be ? ToIntegerOrInfinity(fromIndex).
Assert: If fromIndex is undefined, then n is 0.
If n is +∞, return false.
Else if n is -∞, set n to 0.
If n ≥ 0, then
Let k be n.
Else,
Let k be len + n.
If k < 0, set k to 0.
Repeat, while k < len,
Let elementK be the result of ! Get(O, ! ToString(F(k))).
If SameValueZero(searchElement, elementK) is true, return true.
Set k to k + 1.
Return false.
includes: [testBigIntTypedArray.js, detachArrayBuffer.js]
features: [align-detached-buffer-semantics-with-web-reality, BigInt, TypedArray]
---*/
testWithBigIntTypedArrayConstructors(function(TA) {
const sample = new TA(1);
const fromIndex = {
valueOf() {
$DETACHBUFFER(sample.buffer);
return 0;
}
};
assert.sameValue(sample.includes(undefined, fromIndex), true);
});