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 var o = { __proto__:Array.prototype, 0:"x" }; 6 function boomer() { return 0; } 7 Object.defineProperty(o, "length", { get:boomer, set:boomer }); 8 Object.seal(o); 9 10 assertDoesNotThrow(function() { o.push(1); }); 11 assertEquals(0, o.length); 12 assertEquals(1, o[0]); 13 14 assertDoesNotThrow(function() { o.unshift(2); }); 15 assertEquals(0, o.length); 16 assertEquals(2, o[0]); 17
