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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) 2021 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-integer-indexed-exotic-objects-hasproperty-p
description: returned keys reflect resized ArrayBuffer for a fixed-sized TypedArray
includes: [testTypedArray.js]
features: [Reflect, TypedArray, resizable-arraybuffer]
---*/
// If the host chooses to throw as allowed by the specification, the observed
// behavior will be identical to the case where `ArrayBuffer.prototype.resize`
// has not been implemented. The following assertion prevents this test from
// passing in runtimes which have not implemented the method.
assert.sameValue(typeof ArrayBuffer.prototype.resize, "function");
function inspect(array) {
return [
Reflect.has(array, 0),
Reflect.has(array, 1),
Reflect.has(array, 2),
Reflect.has(array, 3),
Reflect.has(array, 4)
].join(",");
}
testWithTypedArrayConstructors(function(TA) {
var BPE = TA.BYTES_PER_ELEMENT;
var ab = new ArrayBuffer(BPE * 4, {maxByteLength: BPE * 5});
var array = new TA(ab, BPE, 2);
assert.sameValue(inspect(array), "true,true,false,false,false", "initial");
try {
ab.resize(BPE * 5);
} catch (_) {}
assert.sameValue(inspect(array), "true,true,false,false,false", "following grow");
try {
ab.resize(BPE * 3);
} catch (_) {}
assert.sameValue(inspect(array), "true,true,false,false,false", "following shrink (within bounds)");
var expected;
try {
ab.resize(BPE * 2);
expected = "false,false,false,false,false";
} catch (_) {
expected = "true,true,false,false,false";
}
assert.sameValue(inspect(array), expected, "following shrink (out of bounds)");
});
reportCompare(0, 0);
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