js/src/jit-test/tests/basic/bug657227.js@ac0c01689b40
js/src/jit-test/tests/basic/bug657227.js
Thu, 15 Jan 2015 15:59:08 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:59:08 +0100
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
- permissions
- -rw-r--r--
Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 var obj;
2 var counter = 0;
3 var p = Proxy.create({
4 has : function(id) {
5 if (id == 'xyz') {
6 ++counter;
7 if (counter == 7) {
8 obj.__proto__ = null;
9 }
10 return true;
11 }
12 return false;
13 },
14 get : function(id) {
15 if (id == 'xyz')
16 return 10;
17 }
18 });
20 function test()
21 {
22 Object.prototype.__proto__ = null;
23 obj = { xyz: 1};
24 var n = 0;
25 for (var i = 0; i != 100; ++i) {
26 var s = obj.xyz;
27 if (s)
28 ++n;
29 if (i == 10) {
30 delete obj.xyz;
31 Object.prototype.__proto__ = p;
32 }
34 }
35 }
37 try {
38 test();
39 } catch (e) {}
