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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: Get "length" uses internal ArrayLength
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 ] )
1. Let O be ? ToObject(this value).
2. Let len be ? ToLength(? Get(O, "length")).
...
includes: [testBigIntTypedArray.js]
features: [BigInt, TypedArray]
---*/
var getCalls = 0;
var desc = {
get: function getLen() {
getCalls++;
return 0;
}
};
Object.defineProperty(TypedArray.prototype, "length", desc);
testWithBigIntTypedArrayConstructors(function(TA) {
var sample = new TA([42n, 43n]);
var calls = 0;
Object.defineProperty(TA.prototype, "length", desc);
Object.defineProperty(sample, "length", desc);
sample.reduce(function() {
calls++;
}, 0);
assert.sameValue(getCalls, 0, "ignores length properties");
assert.sameValue(calls, 2, "iterations are not affected by custom length");
});
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