js/src/jit-test/tests/basic/testBug502914.js@ac0c01689b40
js/src/jit-test/tests/basic/testBug502914.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 function testBug502914() {
2 // Assigning a non-function to a function-valued property on trace should
3 // bump the shape.
4 function f1() {}
5 function C() {}
6 var x = C.prototype = {m: f1};
7 x.m(); // brand scope
8 var arr = [new C, new C, new C, x];
9 try {
10 for (var i = 0; i < 4; i++) {
11 arr[i].m = 12;
12 x.m(); // should throw last time through
13 }
14 } catch (exc) {
15 return exc.constructor.name;
16 }
17 return "no exception";
18 }
19 assertEq(testBug502914(), "TypeError");
