1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/js/src/jit-test/tests/basic/bug657227.js Wed Dec 31 06:09:35 2014 +0100 1.3 @@ -0,0 +1,39 @@ 1.4 +var obj; 1.5 +var counter = 0; 1.6 +var p = Proxy.create({ 1.7 + has : function(id) { 1.8 + if (id == 'xyz') { 1.9 + ++counter; 1.10 + if (counter == 7) { 1.11 + obj.__proto__ = null; 1.12 + } 1.13 + return true; 1.14 + } 1.15 + return false; 1.16 + }, 1.17 + get : function(id) { 1.18 + if (id == 'xyz') 1.19 + return 10; 1.20 + } 1.21 +}); 1.22 + 1.23 +function test() 1.24 +{ 1.25 + Object.prototype.__proto__ = null; 1.26 + obj = { xyz: 1}; 1.27 + var n = 0; 1.28 + for (var i = 0; i != 100; ++i) { 1.29 + var s = obj.xyz; 1.30 + if (s) 1.31 + ++n; 1.32 + if (i == 10) { 1.33 + delete obj.xyz; 1.34 + Object.prototype.__proto__ = p; 1.35 + } 1.36 + 1.37 + } 1.38 +} 1.39 + 1.40 +try { 1.41 + test(); 1.42 +} catch (e) {}