The Tor Browser / file revision

• file
• revisions
• annotate
• diff
• comparison
• raw

js/src/jit-test/tests/for-of/array-holes-slow.js@129ffea94266

js/src/jit-test/tests/for-of/array-holes-slow.js

Sat, 03 Jan 2015 20:18:00 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Sat, 03 Jan 2015 20:18:00 +0100

branch

TOR_BUG_3246

changeset 7

129ffea94266

permissions

-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

 // for-of on a slow Array consults the prototype chain when it encounters a hole.

 var a = [0, , , 3];

 a.slow = true;

 Object.prototype[1] = 'peek1';

 Array.prototype[2] = 'peek2';

 var log = [];

 for (var x of a)

     log.push(x);

 assertEq(log[1], 'peek1');

 assertEq(log[2], 'peek2');

 assertEq(log.join(), "0,peek1,peek2,3");