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

michael@0 1 var s;
michael@0 2
michael@0 3 function f(i) {
michael@0 4 if (i > 4) /* side exit when arr[i] changes from bool to undefined (via a hole) */
michael@0 5 assertEq(s, undefined);
michael@0 6 else
michael@0 7 assertEq(s, false);
michael@0 8 return 1;
michael@0 9 }
michael@0 10
michael@0 11 /* trailing 'true' ensures array has capacity >= 10 */
michael@0 12 var arr = [ false, false, false, false, false, , , , , , true ];
michael@0 13
michael@0 14 for (var i = 0; i < 10; ++i) {
michael@0 15 (s = arr[i]) + f(i);
michael@0 16 }

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