tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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Environment-getVariable-12.js (1475B)

      1 var g = newGlobal({newCompartment: true});
      2 var dbg = new Debugger;
      3 var gw = dbg.addDebuggee(g);
      4 
      5 var hits = 0;
      6 dbg.onDebuggerStatement = function (frame) {
      7    hits++;
      8    assertEq(frame.environment.parent.getVariable('y'), true);
      9 };
     10 
     11 g.eval("var g;" +
     12       "function f(x) {" +
     13       "  { let y = x; " +
     14       "    if (x)" +
     15       "      g = function() { eval('debugger') };" +
     16       "    else" +
     17       "      g();" +
     18       "  }" +
     19       "}" +
     20       "f(true);" +
     21       "f(false);");
     22 assertEq(hits, 1);
     23 
     24 var hits = 0;
     25 dbg.onDebuggerStatement = function (frame) {
     26    hits++;
     27    assertEq(frame.environment.parent.getVariable('y'), 1);
     28    assertEq(frame.environment.parent.names().indexOf('z'), -1);
     29 };
     30 
     31 g.eval("var g;" +
     32       "{ let y = 1; " +
     33       "  g = function () { eval(''); debugger; };" +
     34       "  { let z = 2; " +
     35       "    g();" +
     36       "  }"+
     37       "}");
     38 assertEq(hits, 1);
     39 
     40 var hits = 0;
     41 dbg.onDebuggerStatement = function (frame) {
     42    hits++;
     43    var e = frame.older.environment.parent;
     44    assertEq(e.getVariable('z'), true);
     45    e = e.parent;
     46    assertEq(e.getVariable('y'), true);
     47 };
     48 
     49 g.eval("var g;" +
     50       "function h() { eval(''); debugger; };" +
     51       "for (var x of [true, false]) {" +
     52       "  { let y = x; " +
     53       "    { let z = x; " +
     54       "      if (x)" +
     55       "        g = function () { print(z); h() };" +
     56       "      else" +
     57       "        g();" +
     58       "    }" +
     59       "  }" +
     60       "}");
     61 assertEq(hits, 1);