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); 25
