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// |reftest| shell-option(--enable-arraybuffer-resizable) skip-if(!ArrayBuffer.prototype.resize||!xulRuntime.shell) -- resizable-arraybuffer is not enabled unconditionally, requires shell-options
// Copyright (C) 2024 André Bargull. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-%typedarray%.prototype.with
description: >
The index is validated against the current length.
info: |
%TypedArray%.prototype.with ( index, value )
1. Let O be the this value.
2. Let taRecord be ? ValidateTypedArray(O, SEQ-CST).
3. Let len be TypedArrayLength(taRecord).
...
8. Else, let numericValue be ? ToNumber(value).
...
10. Let A be ? TypedArrayCreateSameType(O, « 𝔽(len) »).
...
13. Return A.
features: [TypedArray, resizable-arraybuffer]
---*/
let rab = new ArrayBuffer(2, {maxByteLength: 5});
let ta = new Int8Array(rab);
ta[0] = 11;
ta[1] = 22;
// Ensure typed array is correctly initialised.
assert.sameValue(ta.length, 2);
assert.sameValue(ta[0], 11);
assert.sameValue(ta[1], 22);
// Index is initially out-of-bounds.
let index = 4;
let value = {
valueOf() {
rab.resize(5);
return 123;
}
};
let result = ta.with(index, value);
// Typed array has been resized.
assert.sameValue(ta.length, 5);
assert.sameValue(ta[0], 11);
assert.sameValue(ta[1], 22);
assert.sameValue(ta[2], 0);
assert.sameValue(ta[3], 0);
assert.sameValue(ta[4], 0);
// Result is correctly initialised.
assert.sameValue(result.length, 2);
assert.sameValue(result[0], 11);
assert.sameValue(result[1], 22);
reportCompare(0, 0);
|
