tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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Frame-arguments-03.js (1224B)


      1 // Destructuring arguments.
      2 
      3 var g = newGlobal({newCompartment: true});
      4 var dbg = new Debugger(g);
      5 var hits = 0;
      6 dbg.onDebuggerStatement = function (frame) {
      7    var args = frame.arguments;
      8    assertEq(args[0], 1);
      9    assertEq(args.length, 4);
     10 
     11    assertEq(args[1] instanceof Debugger.Object, true);
     12    assertEq(args[1].class, "Array");
     13    var getprop = frame.eval("(function (p) { return this[p]; })").return;
     14    assertEq(getprop instanceof Debugger.Object, true);
     15    assertEq(getprop.apply(args[1], ["length"]).return, 2);
     16    assertEq(getprop.apply(args[1], [0]).return, 2);
     17    assertEq(getprop.apply(args[1], [1]).return, 3);
     18 
     19    assertEq(args[2] instanceof Debugger.Object, true);
     20    assertEq(args[2].class, "Object");
     21    var x = getprop.apply(args[2], ["x"]).return;
     22    assertEq(x.class, "Array"); 
     23    assertEq(getprop.apply(x, ["0"]).return, 4);
     24    assertEq(getprop.apply(args[2], ["z"]).return, 5);
     25 
     26    assertEq(args[3] instanceof Debugger.Object, true);
     27    assertEq(args[3].class, "Object");
     28    assertEq(getprop.apply(args[3], ["q"]).return, 6);
     29    hits++;
     30 };
     31 
     32 g.eval("function f(a, [b, c], {x: [y], z: w}, {q}) { debugger; }");
     33 g.eval("f(1, [2, 3], {x: [4], z: 5}, {q: 6});");
     34 assertEq(hits, 1);