| // 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.reduceright |
| description: > |
| Integer indexed values are not cached before iteration |
| info: | |
| 22.2.3.21 %TypedArray%.prototype.reduceRight ( callbackfn [ , initialValue ] ) |
| |
| %TypedArray%.prototype.reduceRight is a distinct function that implements the |
| same algorithm as Array.prototype.reduceRight as defined in 22.1.3.20 except |
| that the this object's [[ArrayLength]] internal slot is accessed in place of |
| performing a [[Get]] of "length". |
| |
| 22.1.3.20 Array.prototype.reduceRight ( callbackfn [ , initialValue ] ) |
| |
| ... |
| 8. Repeat, while k ≥ 0 |
| ... |
| c. If kPresent is true, then |
| i. Let kValue be ? Get(O, Pk). |
| ii. Let accumulator be ? Call(callbackfn, undefined, « accumulator, |
| kValue, k, O »). |
| d. Decrease k by 1. |
| ... |
| includes: [testTypedArray.js] |
| features: [TypedArray] |
| ---*/ |
| |
| testWithTypedArrayConstructors(function(TA) { |
| var sample = new TA([44, 43, 42]); |
| |
| sample.reduceRight(function(a, v, i) { |
| if (i > 0) { |
| sample[i-1] = 42; |
| } |
| |
| assert.sameValue( |
| v, 42, "method does not cache values before callbackfn calls" |
| ); |
| }, 0); |
| }); |