// 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.lastindexof description: Get "length" uses internal ArrayLength info: | 22.2.3.17 %TypedArray%.prototype.lastIndexOf ( searchElement [ , fromIndex ] ) %TypedArray%.prototype.lastIndexOf is a distinct function that implements the same algorithm as Array.prototype.lastIndexOf as defined in 22.1.3.15 except that the this object's [[ArrayLength]] internal slot is accessed in place of performing a [[Get]] of "length". 22.1.3.15 Array.prototype.lastIndexOf ( searchElement [ , fromIndex ] ) ... 2. Let len be ? ToLength(? Get(O, "length")). ... includes: [testTypedArray.js] features: [TypedArray] ---*/ Object.defineProperty(TypedArray.prototype, "length", {value: 0}); testWithTypedArrayConstructors(function(TA) { var sample = new TA([7]); Object.defineProperty(TA.prototype, "length", {value: 0}); Object.defineProperty(sample, "length", {value: 0}); assert.sameValue(sample.lastIndexOf(7), 0); }); reportCompare(0, 0);