tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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regress-406572.js (1395B)

      1 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
      2 /* This Source Code Form is subject to the terms of the Mozilla Public
      3 * License, v. 2.0. If a copy of the MPL was not distributed with this
      4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      5 
      6 //-----------------------------------------------------------------------------
      7 var BUGNUMBER = 406572;
      8 var summary = 'JSOP_CLOSURE unconditionally replaces properties of the variable object - Browser only';
      9 var actual = '';
     10 var expect = '';
     11 
     12 printBugNumber(BUGNUMBER);
     13 printStatus (summary);
     14 
     15 if (typeof window != 'undefined')
     16 {
     17  try {
     18    actual = "FAIL: Unexpected exception thrown";
     19 
     20    var win = window;
     21    var windowString = String(window);
     22    window = 1;
     23    reportCompare(windowString, String(window), "window should be readonly");
     24 
     25    if (1)
     26      function window() { return 1; }
     27 
     28    // We should reach this line without throwing. Annex B means the
     29    // block-scoped function above gets an assignment to 'window' in the
     30    // nearest 'var' environment, but since 'window' is read-only, the
     31    // assignment silently fails.
     32    actual = "";
     33 
     34    // The test harness might rely on window having its original value:
     35    // restore it.
     36    window = win;
     37  } catch (e) {
     38  }
     39 }
     40 else
     41 {
     42  expect = actual = 'Test can only run in a Gecko 1.9 browser or later.';
     43  print(actual);
     44 }
     45 reportCompare(expect, actual, summary);