tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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destructuring-scope.js (1664B)

      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 = 'none';
      8 var summary = 'Test destructuring assignments for differing scopes';
      9 var actual = '';
     10 var expect = '';
     11 
     12 printBugNumber(BUGNUMBER);
     13 printStatus (summary);
     14 
     15 function f() {
     16  var x = 3;
     17  if (x > 0) {
     18    let {a:x} = {a:7};
     19    if (x != 7) 
     20      throw "fail";
     21  }
     22  if (x != 3) 
     23    throw "fail";
     24 }
     25 
     26 function g() {
     27  // Before JS1.7's destructuring for…in was fixed to match JS1.8's,
     28  // the expected values were a == "x" and b == 7.
     29  for (var [a,b] in {x:7}) {
     30    if (a !== "x" || typeof b !== "undefined")
     31      throw "fail";
     32  }
     33 
     34  {
     35    // Before JS1.7's destructuring for…in was fixed to match JS1.8's,
     36    // the expected values were a == "y" and b == 8.
     37    for (let [a,b] in {y:8}) {
     38      if (a !== "y" || typeof b !== "undefined")
     39        throw "fail";
     40    }
     41  }
     42 
     43  if (a !== "x" || typeof b !== "undefined")
     44    throw "fail";
     45 }
     46 
     47 f();
     48 g();
     49 
     50 if (typeof a != "undefined" || typeof b != "undefined" || typeof x != "undefined")
     51  throw "fail";
     52 
     53 function h() {
     54  // Before JS1.7's destructuring for…in was fixed to match JS1.8's,
     55  // the expected values were a == "x" and b == 9.
     56  for ([a,b] in {z:9}) {
     57    if (a !== "z" || typeof b !== "undefined")
     58      throw "fail";
     59  }
     60 }
     61 
     62 h();
     63 
     64 if (a !== "z" || typeof b !== "undefined")
     65  throw "fail";
     66 
     67 reportCompare(expect, actual, summary);