tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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Object-script-environment-nondebuggee.js (816B)

      1 // The script and environment of a non-debuggee function are null.
      2 
      3 var g = newGlobal({newCompartment: true});
      4 g.eval('function f() { return "from f"; }');
      5 
      6 var dbg = new Debugger;
      7 var gw = dbg.makeGlobalObjectReference(g);
      8 var fw = gw.getOwnPropertyDescriptor('f').value;
      9 
     10 // g is not a debuggee, so we can't fetch f's script or environment.
     11 assertEq(fw.script, null);
     12 assertEq(fw.environment, null);
     13 
     14 // If we add g as a debuggee, we can fetch f's script and environment.
     15 dbg.addDebuggee(g);
     16 var fscript = fw.script;
     17 var fenv = fw.environment;
     18 assertEq(fscript instanceof Debugger.Script, true);
     19 assertEq(fenv instanceof Debugger.Environment, true);
     20 
     21 // Removing g as a debuggee makes the script and environment inaccessible again.
     22 dbg.removeDebuggee(g);
     23 assertEq(fw.script, null);
     24 assertEq(fw.environment, null);