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

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

 // Complicated whitebox test for bug 487845.

 function testGlobalShapeChangeAfterDeepBail() {

     function f(name) {

         this[name] = 1;  // may change global shape

         for (var i = 0; i < 4; i++)

             ; // MonitorLoopEdge eventually triggers assertion

     }

     // When i==3, deep-bail, then change global shape enough times to exhaust

     // the array of GlobalStates.

     var arr = [[], [], [], ["bug0", "bug1", "bug2", "bug3", "bug4"]];

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

         arr[i].forEach(f);

 }

 testGlobalShapeChangeAfterDeepBail();