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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.set-typedarray-offset
description: >
Set values from different instances using the same buffer and different
constructor.
info: |
22.2.3.23.2 %TypedArray%.prototype.set(typedArray [ , offset ] )
1. Assert: typedArray has a [[TypedArrayName]] internal slot. If it does not,
the definition in 22.2.3.23.1 applies.
...
23. If SameValue(srcBuffer, targetBuffer) is true, then
a. Let srcBuffer be ? CloneArrayBuffer(srcBuffer, srcByteOffset, srcLength,
%ArrayBuffer%).
b. NOTE: %ArrayBuffer% is used to clone srcBuffer because is it known to not
have any observable side-effects.
...
...
27. If SameValue(srcType, targetType) is true, then,
...
28. Else,
a. Repeat, while targetByteIndex < limit
i. Let value be GetValueFromBuffer(srcBuffer, srcByteIndex, srcType).
ii. Perform SetValueInBuffer(targetBuffer, targetByteIndex, targetType,
value).
...
29. Return undefined.
includes: [testTypedArray.js, compareArray.js]
features: [TypedArray]
---*/
var expected = {
Float64Array: [1.0000002464512363, 42, 1.875, 4, 5, 6, 7, 8],
Float32Array: [0, 42, 512.0001220703125, 4, 5, 6, 7, 8],
Int32Array: [1109917696, 42, 0, 4, 5, 6, 7, 8],
Int16Array: [0, 42, 0, 4, 5, 6, 7, 8],
Int8Array: [0, 42, 0, 66, 5, 6, 7, 8],
Uint32Array: [1109917696, 42, 0, 4, 5, 6, 7, 8],
Uint16Array: [0, 42, 0, 4, 5, 6, 7, 8],
Uint8Array: [0, 42, 0, 66, 5, 6, 7, 8],
Uint8ClampedArray: [0, 42, 0, 66, 5, 6, 7, 8]
};
testWithTypedArrayConstructors(function(TA) {
var other = TA === Float32Array ? Float64Array : Float32Array;
var sample = new TA([1, 2, 3, 4, 5, 6, 7, 8]);
var src = new other(sample.buffer, 0, 2);
// Reflect changes on sample object
src[0] = 42;
var result = sample.set(src, 1);
assert(compareArray(sample, expected[TA.name]), sample);
assert.sameValue(result, undefined, "returns undefined");
});
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