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// |reftest| skip-if(!this.hasOwnProperty('Atomics')||!this.hasOwnProperty('SharedArrayBuffer')||(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration('arm64-simulator'))) -- Atomics,SharedArrayBuffer is not enabled unconditionally, ARM64 Simulator cannot emulate atomics
// Copyright (C) 2017 Mozilla Corporation. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-atomics.store
description: Test Atomics.store on arrays that allow atomic operations.
includes: [testAtomics.js, testTypedArray.js]
features: [ArrayBuffer, Atomics, DataView, SharedArrayBuffer, Symbol, TypedArray]
---*/
const sab = new SharedArrayBuffer(1024);
const ab = new ArrayBuffer(16);
const views = nonClampedIntArrayConstructors.slice();
testWithTypedArrayConstructors(function(TA) {
// Make it interesting - use non-zero byteOffsets and non-zero indexes.
const view = new TA(sab, 32, 20);
const control = new TA(ab, 0, 2);
const values = [
10,
-5,
12345,
123456789,
Math.PI,
"33",
{
valueOf: function() { return 33; }
},
undefined
];
for (let i = 0; i < values.length; i++) {
let val = values[i];
assert.sameValue(Atomics.store(view, 3, val), ToInteger(val),
'Atomics.store(view, 3, val) returns ToInteger(val)');
control[0] = val;
assert.sameValue(
view[3],
control[0],
'The value of view[3] equals the value of `control[0]` (val)'
);
}
// In-bounds boundary cases for indexing
testWithAtomicsInBoundsIndices(function(IdxGen) {
let Idx = IdxGen(view);
view.fill(0);
Atomics.store(view, Idx, 37);
assert.sameValue(Atomics.load(view, Idx), 37, 'Atomics.load(view, Idx) returns 37');
});
}, views);
function ToInteger(v) {
v = +v;
if (isNaN(v)) {
return 0;
}
if (v == 0 || !isFinite(v)) {
return v;
}
if (v < 0) {
return -Math.floor(Math.abs(v));
}
return Math.floor(v);
}
reportCompare(0, 0);
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