| // 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: Requires a [[TypedArrayName]] internal slot. |
| info: | |
| 22.2.3.16 %TypedArray%.prototype.lastIndexOf ( searchElement [ , fromIndex ] ) |
| |
| This function is not generic. ValidateTypedArray is applied to the this value |
| prior to evaluating the algorithm. If its result is an abrupt completion that |
| exception is thrown instead of evaluating the algorithm. |
| |
| 22.2.3.5.1 Runtime Semantics: ValidateTypedArray ( O ) |
| |
| 1. If Type(O) is not Object, throw a TypeError exception. |
| 2. If O does not have a [[TypedArrayName]] internal slot, throw a TypeError |
| exception. |
| ... |
| includes: [testTypedArray.js] |
| features: [TypedArray] |
| ---*/ |
| |
| var TypedArrayPrototype = TypedArray.prototype; |
| |
| assert.sameValue(typeof TypedArrayPrototype.lastIndexOf, 'function'); |
| |
| assert.throws(TypeError, function() { |
| TypedArrayPrototype.lastIndexOf(); |
| }); |
