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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.fill
description: >
Fills all the elements with non numeric values values.
info: |
22.2.3.8 %TypedArray%.prototype.fill (value [ , start [ , end ] ] )
%TypedArray%.prototype.fill is a distinct function that implements the same
algorithm as Array.prototype.fill as defined in 22.1.3.6 except that the this
object's [[ArrayLength]] internal slot is accessed in place of performing a
[[Get]] of "length". The implementation of the algorithm may be optimized with
the knowledge that the this value is an object that has a fixed length and
whose integer indexed properties are not sparse. However, such optimization
must not introduce any observable changes in the specified behaviour of the
algorithm.
...
22.1.3.6 Array.prototype.fill (value [ , start [ , end ] ] )
...
7. Repeat, while k < final
a. Let Pk be ! ToString(k).
b. Perform ? Set(O, Pk, value, true).
...
9.4.5.9 IntegerIndexedElementSet ( O, index, value )
...
3. Let numValue be ? ToNumber(value).
...
includes: [testBigIntTypedArray.js]
features: [BigInt, TypedArray]
---*/
testWithBigIntTypedArrayConstructors(function(TA) {
var sample;
sample = new TA([42n]);
sample.fill(false);
assert.sameValue(sample[0], 0n, "false => 0");
sample = new TA([42n]);
sample.fill(true);
assert.sameValue(sample[0], 1n, "true => 1");
sample = new TA([42n]);
sample.fill("7");
assert.sameValue(sample[0], 7n, "string conversion");
sample = new TA([42n]);
sample.fill({
toString: function() {
return "1";
},
valueOf: function() {
return 7n;
}
});
assert.sameValue(sample[0], 7n, "object valueOf conversion before toString");
sample = new TA([42n]);
sample.fill({
toString: function() {
return "7";
}
});
assert.sameValue(sample[0], 7n, "object toString when valueOf is absent");
});
|
