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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.copywithin
es6id: 22.2.3.5
description: >
Returns `this`.
info: |
22.2.3.5 %TypedArray%.prototype.copyWithin (target, start [ , end ] )
%TypedArray%.prototype.copyWithin is a distinct function that implements the
same algorithm as Array.prototype.copyWithin as defined in 22.1.3.3 except
that the this object's [[ArrayLength]] internal slot is accessed in place of
performing a [[Get]] of "length" and the actual copying of values in step 12
must be performed in a manner that preserves the bit-level encoding of the
source data.
...
22.1.3.3 Array.prototype.copyWithin (target, start [ , end ] )
13. Return O.
includes: [testTypedArray.js]
features: [TypedArray]
---*/
testWithTypedArrayConstructors(function(TA) {
var sample1 = new TA();
var result1 = sample1.copyWithin(0, 0);
assert.sameValue(result1, sample1);
var sample2 = new TA([1, 2, 3]);
var result2 = sample2.copyWithin(1, 0);
assert.sameValue(result2, sample2);
});
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