js/src/jit-test/tests/proxy/testDirectProxyHasOwn5.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 load(libdir + "asserts.js");
     3 /*
     4  * Throw a TypeError if the trap reports a new own property on a non-extensible
     5  * object
     6  */
     7 var target = {};
     8 Object.preventExtensions(target);
     9 assertThrowsInstanceOf(function () {
    10     ({}).hasOwnProperty.call(new Proxy(target, {
    11         hasOwn: function (target, name) {
    12             return true;
    13         }
    14     }), 'foo');
    15 }, TypeError);

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