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// Copyright (C) 2021 Microsoft. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-%typedarray%.prototype.findlastindex
description: >
Throws a TypeError exception when `this` is not a TypedArray instance
info: |
%TypedArray%.prototype.findLastIndex ( predicate [ , thisArg ] )
...
2. Perform ? ValidateTypedArray(O).
...
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, array-find-from-last]
---*/
var findLastIndex = TypedArray.prototype.findLastIndex;
var predicate = function() {};
assert.throws(TypeError, function() {
findLastIndex.call({}, predicate);
}, "this is an Object");
assert.throws(TypeError, function() {
findLastIndex.call([], predicate);
}, "this is an Array");
var ab = new ArrayBuffer(8);
assert.throws(TypeError, function() {
findLastIndex.call(ab, predicate);
}, "this is an ArrayBuffer instance");
var dv = new DataView(new ArrayBuffer(8), 0, 1);
assert.throws(TypeError, function() {
findLastIndex.call(dv, predicate);
}, "this is a DataView instance");
reportCompare(0, 0);
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