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js/src/jit-test/tests/debug/Environment-02.js@ac0c01689b40

js/src/jit-test/tests/debug/Environment-02.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.

 // The last Environment on the environment chain always has .type == "object" and .object === the global object.

 var g = newGlobal();

 var dbg = new Debugger;

 var gw = dbg.addDebuggee(g);

 g.eval("function h() { debugger; }");

 var hits = 0;

 dbg.onDebuggerStatement = function (hframe) {

     var env = hframe.older.environment;

     while (env.parent)

         env = env.parent;

     assertEq(env.type, "object");

     assertEq(env.object, gw);

     hits++;

 };

 g.eval("h();");

 g.eval("(function () { h(); return []; })();");

 g.eval("with (Math) { h(-2 * PI); }");

 assertEq(hits, 3);