| // 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: > |
| callbackfn `this` value |
| 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 ] ) |
| |
| ... |
| 8. Repeat, while k < len |
| ... |
| c. If kPresent is true, then |
| ... |
| i. Let accumulator be ? Call(callbackfn, undefined, « accumulator, kValue, |
| k, O »). |
| ... |
| includes: [testTypedArray.js] |
| features: [TypedArray] |
| ---*/ |
| |
| var expected = (function() { return this; })(); |
| |
| testWithTypedArrayConstructors(function(TA) { |
| var sample = new TA(3); |
| |
| var results = []; |
| |
| sample.reduce(function() { |
| results.push(this); |
| }, 0); |
| |
| assert.sameValue(results.length, 3, "results.length"); |
| assert.sameValue(results[0], expected, "[0]"); |
| assert.sameValue(results[1], expected, "[1]"); |
| assert.sameValue(results[2], expected, "[2]"); |
| }); |