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js/src/jit-test/tests/basic/testDeepBailFromHasInstance.js@ac0c01689b40

js/src/jit-test/tests/basic/testDeepBailFromHasInstance.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.

 var arr = [StopIteration, StopIteration, StopIteration, StopIteration, {}];

 var obj = {};

 var x;

 var result = 'no error';

 try {

     for (var i = 0; i < arr.length; i++)

         x = (obj instanceof arr[i]);  // last iteration throws, triggering deep bail

 } catch (exc) {

     result = exc.constructor.name;

 }

 assertEq(result, 'TypeError');