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// Copyright (C) 2017 Mozilla Corporation. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-integer-indexed-exotic-objects-set-p-v-receiver
description: >
Setting a typed array element to a value that, when converted to the typed
array element type, detaches the typed array's underlying buffer, will return true.
info: |
9.4.5.5 [[Set]] ( P, V, Receiver)
...
2. If Type(P) is String, then
a. Let numericIndex be ! CanonicalNumericIndexString(P).
b. If numericIndex is not undefined, then
i. Perform ? IntegerIndexedElementSet(O, numericIndex, V).
ii. Return true.
...
9.4.5.11 IntegerIndexedElementSet ( O, index, value )
Assert: O is an Integer-Indexed exotic object.
If O.[[ContentType]] is BigInt, let numValue be ? ToBigInt(value).
Otherwise, let numValue be ? ToNumber(value).
Let buffer be O.[[ViewedArrayBuffer]].
If IsDetachedBuffer(buffer) is false and ! IsValidIntegerIndex(O, index) is true, then
Let offset be O.[[ByteOffset]].
Let arrayTypeName be the String value of O.[[TypedArrayName]].
Let elementSize be the Element Size value specified in Table 62 for arrayTypeName.
Let indexedPosition be (ℝ(index) × elementSize) + offset.
Let elementType be the Element Type value in Table 62 for arrayTypeName.
Perform SetValueInBuffer(buffer, indexedPosition, elementType, numValue, true, Unordered).
Return NormalCompletion(undefined).
includes: [testTypedArray.js, detachArrayBuffer.js]
features: [align-detached-buffer-semantics-with-web-reality, Reflect, TypedArray]
---*/
testWithTypedArrayConstructors(function(TA) {
let ta = new TA(1);
let result = Reflect.set(ta, 0, {
valueOf() {
$DETACHBUFFER(ta.buffer);
return 42;
}
});
assert.sameValue(result, true);
assert.sameValue(ta[0], undefined);
});
reportCompare(0, 0);
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