The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/jit-test/tests/debug/Frame-identity-04.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,20 @@
     1.4 +// Test that on-stack Debugger.Frames are not GC'd even if they are only reachable
     1.5 +// from the js::Debugger::frames table.
     1.6 +
     1.7 +var g = newGlobal();
     1.8 +g.eval("function f(n) { if (n) f(n - 1); debugger; }");
     1.9 +var dbg = new Debugger(g);
    1.10 +var hits = 0;
    1.11 +dbg.onDebuggerStatement = function (frame) {
    1.12 +    if (hits === 0) {
    1.13 +        for (; frame; frame = frame.older)
    1.14 +            frame.seen = true;
    1.15 +    } else {
    1.16 +        for (; frame; frame = frame.older)
    1.17 +            assertEq(frame.seen, true);
    1.18 +    }
    1.19 +    gc();
    1.20 +    hits++;
    1.21 +};
    1.22 +g.f(20);
    1.23 +assertEq(hits, 21);