The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/tests/js1_7/extensions/regress-351070-02.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,69 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +//-----------------------------------------------------------------------------
    1.10 +var BUGNUMBER = 351070;
    1.11 +var summary = 'decompilation of let declaration should not change scope';
    1.12 +var actual = '';
    1.13 +var expect = '';
    1.14 +
    1.15 +
    1.16 +//-----------------------------------------------------------------------------
    1.17 +test();
    1.18 +//-----------------------------------------------------------------------------
    1.19 +
    1.20 +function test()
    1.21 +{
    1.22 +  enterFunc ('test');
    1.23 +  printBugNumber(BUGNUMBER);
    1.24 +  printStatus (summary);
    1.25 + 
    1.26 +  try
    1.27 +  {
    1.28 +    var pfx  = "(function f() { var n = 2, a = 2; ",
    1.29 +      decl = " let a = 3;",
    1.30 +      end  = " return a; })";
    1.31 +
    1.32 +    var table = [
    1.33 +      ["if (!!true)",       ""],
    1.34 +      ["if (!!true)",       " else foopy();"],
    1.35 +      ["if (!true); else",  ""],
    1.36 +      ["do ",               " while (false);"],
    1.37 +      ["while (--n)",       ""],
    1.38 +      ["for (--n;n;--n)",   ""],
    1.39 +      ["for (a in this)",   ""],
    1.40 +      ["with (this)",       ""],
    1.41 +      ];
    1.42 +
    1.43 +    expect = 3;
    1.44 +
    1.45 +    for (i = 0; i < table.length; i++) {
    1.46 +      var src = pfx + table[i][0] + decl + table[i][1] + end;
    1.47 +      print('src: ' + src);
    1.48 +      var fun = eval(src);
    1.49 +      var testval = fun();
    1.50 +      reportCompare(expect, testval, summary + ': ' + src);
    1.51 +      if (testval != expect) {
    1.52 +        break;
    1.53 +      }
    1.54 +      print('uneval: ' + uneval(fun));
    1.55 +      var declsrc = '(' +
    1.56 +        src.slice(1, -1).replace('function f', 'function f' + i) + ')';
    1.57 +      print('declsrc: ' + declsrc);
    1.58 +      this['f' + i] = eval(declsrc);
    1.59 +      print('f' + i + ': ' + this['f' + i]);
    1.60 +    }
    1.61 +  }
    1.62 +  catch(ex)
    1.63 +  {
    1.64 +    // See https://bugzilla.mozilla.org/show_bug.cgi?id=408957
    1.65 +    summary = 'let declaration must be direct child of block or top-level implicit block';
    1.66 +    expect = 'SyntaxError';
    1.67 +    actual = ex.name;
    1.68 +    reportCompare(expect, actual, summary);
    1.69 +  }
    1.70 +
    1.71 +  exitFunc ('test');
    1.72 +}