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1 // Copyright 2014 the V8 project authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 // | |
5 // Flags: --harmony-object-observe | |
6 | |
7 var records; | |
8 function observer(r) { | |
9 records = r; | |
10 } | |
11 | |
12 Object.defineProperty(Array.prototype, '0', { | |
13 get: function() { return 0; }, | |
14 set: function() { throw "boom!"; } | |
15 }); | |
16 arr = [1, 2]; | |
17 Array.observe(arr, observer); | |
18 arr.length = 0; | |
19 assertEquals(0, arr.length); | |
20 | |
21 Object.deliverChangeRecords(observer); | |
22 assertEquals(1, records.length); | |
23 assertEquals('splice', records[0].type); | |
24 assertArrayEquals([1, 2], records[0].removed); | |
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