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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-%typedarray%.prototype.slice
description: >
Does not throw a TypeError if buffer is detached on custom constructor and
count <= 0. Using other targetType.
info: |
22.2.3.24 %TypedArray%.prototype.slice ( start, end )
Let A be ? TypedArraySpeciesCreate(O, « count »).
If count > 0, then
...
Return A
includes: [testTypedArray.js, detachArrayBuffer.js]
features: [align-detached-buffer-semantics-with-web-reality, Symbol.species, TypedArray]
---*/
testWithTypedArrayConstructors(function(TA) {
let counter = 0;
let sample, result, other;
let ctor = {};
ctor[Symbol.species] = function(count) {
counter++;
$DETACHBUFFER(sample.buffer);
other = new TA(count);
return other;
};
sample = new TA(0);
sample.constructor = ctor;
result = sample.slice();
assert.sameValue(result.length, 0, 'The value of result.length is 0');
assert.notSameValue(result.buffer, sample.buffer, 'The value of result.buffer is expected to not equal the value of `sample.buffer`');
assert.sameValue(result, other, 'The value of `result` is expected to equal the value of other');
assert.sameValue(counter, 1, 'The value of `counter` is 1');
sample = new TA(4);
sample.constructor = ctor;
sample.slice(1, 1); // count = 0;
assert.sameValue(counter, 2, 'The value of `counter` is 2');
});
reportCompare(0, 0);
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