js/src/jit-test/tests/debug/gc-04.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.

     1 // Storing a Debugger.Object as a key in a WeakMap protects it from GC as long as
     2 // the referent is alive.
     4 var g = newGlobal();
     5 var N = g.N = 10;
     6 var dbg = Debugger(g);
     7 var cache = new WeakMap;
     9 var i = 0;
    10 dbg.onDebuggerStatement = function (frame) {
    11     cache.set(frame.arguments[0], i++);
    12 };
    13 g.eval("function f(x) { debugger; }");
    14 g.eval("var arr = [], j; for (j = 0; j < N; j++) arr[j] = {};");
    15 g.eval("for (j = 0; j < N; j++) f(arr[j]);");
    16 assertEq(i, N);
    18 gc(); gc();
    20 i = 0;
    21 dbg.onDebuggerStatement = function (frame) {
    22     assertEq(cache.get(frame.arguments[0]), i++)
    23 };
    24 g.eval("for (j = 0; j < N; j++) f(arr[j]);");
    25 assertEq(i, N);

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