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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.reduce
description: >
Integer indexed values changed during iteration
info: |
22.2.3.20 %TypedArray%.prototype.reduce ( callbackfn [ , initialValue ] )
%TypedArray%.prototype.reduce is a distinct function that implements the same
algorithm as Array.prototype.reduce as defined in 22.1.3.19 except that the
this object's [[ArrayLength]] internal slot is accessed in place of performing
a [[Get]] of "length".
22.1.3.19 Array.prototype.reduce ( callbackfn [ , initialValue ] )
includes: [testBigIntTypedArray.js]
features: [BigInt, Reflect.set, TypedArray]
---*/
testWithBigIntTypedArrayConstructors(function(TA) {
var sample = new TA([42n, 43n, 44n]);
var newVal = 0n;
sample.reduce(function(acc, val, i) {
if (i > 0) {
assert.sameValue(
sample[i - 1], newVal - 1n,
"get the changed value during the loop"
);
assert.sameValue(
Reflect.set(sample, 0, 7n),
true,
"re-set a value for sample[0]"
);
}
assert.sameValue(
Reflect.set(sample, i, newVal),
true,
"set value during iteration"
);
newVal++;
}, 0);
assert.sameValue(sample[0], 7n, "changed values after iteration [0] == 7");
assert.sameValue(sample[1], 1n, "changed values after iteration [1] == 1");
assert.sameValue(sample[2], 2n, "changed values after iteration [2] == 2");
});
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