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: --allow-natives-syntax 6 7 // These tests are meant to ensure that that the Object.observe runtime 8 // functions are hardened. 9 10 var obj = {}; 11 %SetIsObserved(obj); 12 assertThrows(function() { 13 %SetIsObserved(obj); 14 }); 15 16 assertThrows(function() { 17 %SetIsObserved(this); 18 }); 19
