tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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Frame-onPop-13.js (1054B)

      1 // One can set onPop handlers on some frames but not others.
      2 var g = newGlobal({newCompartment: true});
      3 g.eval("function f(n) { if (n > 0) f(n-1); else debugger; }");
      4 var dbg = new Debugger(g);
      5 var log;
      6 
      7 Debugger.Frame.prototype.nthOlder = function nthOlder(n) {
      8    var f = this;
      9    while (n-- > 0)
     10        f = f.older;
     11    return f;
     12 };
     13 
     14 dbg.onEnterFrame = function handleEnter(f) {
     15    log += "(" + f.arguments[0];
     16 };
     17 
     18 function makePopHandler(n) {
     19    return function handlePop(c) {
     20        log += ")" + this.arguments[0];
     21        assertEq(this.arguments[0], n);
     22    };
     23 }
     24 
     25 dbg.onDebuggerStatement = function handleDebugger(f) {
     26    // Set onPop handers on some frames, and leave others alone. Vary the
     27    // spacing.
     28    f.nthOlder(2).onPop = makePopHandler(2);
     29    f.nthOlder(3).onPop = makePopHandler(3);
     30    f.nthOlder(5).onPop = makePopHandler(5);
     31    f.nthOlder(8).onPop = makePopHandler(8);
     32    f.nthOlder(13).onPop = makePopHandler(13);
     33 };
     34 
     35 log = '';
     36 g.f(20);
     37 assertEq(log, "(20(19(18(17(16(15(14(13(12(11(10(9(8(7(6(5(4(3(2(1(0)2)3)5)8)13");