tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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Frame-onPop-error-scope-unwind-01.js (710B)

      1 // Tests that exception handling works with block scopes.
      2 
      3 var g = newGlobal({newCompartment: true});
      4 var dbg = new Debugger(g);
      5 var correct;
      6 dbg.onEnterFrame = function (f) {
      7  if (f.callee && f.callee.name == "f") {
      8    f.onPop = function() {
      9      // The scope at the point of onPop is at the point of popping (the
     10      // noSuchFn call).
     11      correct = (f.environment.getVariable("e") === 42 &&
     12                 f.environment.getVariable("outer") === undefined);
     13    };
     14  }
     15 };
     16 g.eval("" + function f() {
     17  var outer = 43;
     18  try {
     19    eval("");
     20    throw 42;
     21  } catch (e) {
     22    noSuchFn(e);
     23  }
     24 });
     25 
     26 
     27 try {
     28  g.eval("f();");
     29 } catch (e) {
     30  // The above is expected to throw.
     31 }
     32 
     33 assertEq(correct, true);