tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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breakpoint-04.js (771B)


      1 // Hitting a breakpoint with no hit method does nothing.
      2 
      3 var g = newGlobal({newCompartment: true});
      4 g.s = '';
      5 g.eval("var line0 = Error().lineNumber;\n" +
      6       "function f() {\n" +   // line0 + 1
      7       "    debugger;\n" +  // line0 + 2
      8       "    s += 'x';\n" +  // line0 + 3
      9       "}\n")
     10 var dbg = Debugger(g);
     11 var bp = [];
     12 dbg.onDebuggerStatement = function (frame) {
     13    g.s += 'D';
     14    var arr = frame.script.getLineOffsets(g.line0 + 3);
     15    for (var i = 0; i < arr.length; i++) {
     16        var obj = {};
     17        bp[i] = obj;
     18        frame.script.setBreakpoint(arr[i], obj);
     19    }
     20 };
     21 
     22 g.f();
     23 assertEq(g.s, "Dx");
     24 
     25 dbg.onDebuggerStatement = undefined;
     26 
     27 for (var i = 0; i < bp.length; i++)
     28    bp[i].hit = function () { g.s += 'B'; };
     29 g.f();
     30 assertEq(g.s, "DxBx");