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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.fill
description: >
Absent start and end parameters are computed from initial length.
info: |
%TypedArray%.prototype.fill ( value [ , start [ , end ] ] )
...
2. Let taRecord be ? ValidateTypedArray(O, seq-cst).
3. Let len be TypedArrayLength(taRecord).
...
5. Otherwise, set value to ? ToNumber(value).
6. Let relativeStart be ? ToIntegerOrInfinity(start).
...
9. Else, let startIndex be min(relativeStart, len).
10. If end is undefined, let relativeEnd be len; else let relativeEnd be ? ToIntegerOrInfinity(end).
...
13. Else, let endIndex be min(relativeEnd, len).
...
features: [TypedArray, resizable-arraybuffer]
---*/
let rab = new ArrayBuffer(1, {maxByteLength: 4});
let ta = new Int8Array(rab);
let value = {
valueOf() {
// Set buffer to maximum byte length.
rab.resize(4);
// Return the fill value.
return 123;
}
};
// Ensure typed array is correctly initialised.
assert.sameValue(ta.length, 1);
assert.sameValue(ta[0], 0);
ta.fill(value);
// Ensure typed array has correct length and only the first element was filled.
assert.sameValue(ta.length, 4);
assert.sameValue(ta[0], 123);
assert.sameValue(ta[1], 0);
assert.sameValue(ta[2], 0);
assert.sameValue(ta[3], 0);
reportCompare(0, 0);
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