tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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regress-1466387-worker-grayroot.js (811B)

      1 var BUGNUMBER = 1466387;
      2 var summary = 'grayRoot() testing on worker thread';
      3 
      4 // Before bug 1466387, the gray root tracer was not set up on worker threads,
      5 // but the grayRoot() function was still available. This resulted in a GC
      6 // collecting the gray root, then a read barrier firing on the dead object.
      7 //
      8 // This is a crashtest. If it does not crash, it will throw a ReferenceError,
      9 // but that's ok.
     10 
     11 print('BUGNUMBER: ' + BUGNUMBER);
     12 print("STATUS: " + summary);
     13 
     14 if (typeof 'evalInWorder' == 'function') {
     15    evalInWorker(`
     16  var wm = new WeakMap();
     17  grayRoot().map = wm;
     18  gczeal(4,10);
     19  evaluate(\`
     20  grayRoot().map = __v_1173;
     21  if (!class i   { constructor() { } }  ()) {
     22    (function __f_252( get       ,    )  {})();
     23  }
     24  \`);
     25 `);
     26 }
     27 
     28 this.reportCompare && reportCompare(true, true, summary);