The Tor Browser: js/src/tests/js1_5/Exceptions/regress-121658.js@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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/. */

     6 /*

     7  *

     8  * Date:    24 Jan 2002

     9  * SUMMARY: "Too much recursion" errors should be safely caught by try...catch

    10  * See http://bugzilla.mozilla.org/show_bug.cgi?id=121658

    11  *

    12  * In the cases below, we expect i>0. The bug was filed because we

    13  * were getting i===0; i.e. |i| did not retain the value it had at the

    14  * location of the error.

    15  *

    16  */

    17 //-----------------------------------------------------------------------------

    18 var UBound = 0;

    19 var BUGNUMBER = 121658;

    20 var msg = '"Too much recursion" errors should be safely caught by try...catch';

    21 var TEST_PASSED = 'i retained the value it had at location of error';

    22 var TEST_FAILED = 'i did NOT retain this value';

    23 var status = '';

    24 var statusitems = [];

    25 var actual = '';

    26 var actualvalues = [];

    27 var expect= '';

    28 var expectedvalues = [];

    29 var i;

    32 function f()

    33 {

    34   ++i;

    36   // try...catch should catch the "too much recursion" error to ensue

    37   try

    38   {

    39     f();

    40   }

    41   catch(e)

    42   {

    43   }

    44 }

    46 i=0;

    47 f();

    48 status = inSection(1);

    49 actual = (i>0);

    50 expect = true;

    51 addThis();

    55 // Now try in function scope -

    56 function g()

    57 {

    58   f();

    59 }

    61 i=0;

    62 g();

    63 status = inSection(2);

    64 actual = (i>0);

    65 expect = true;

    66 addThis();

    70 // Now try in eval scope -

    71 var sEval = 'function h(){++i; try{h();} catch(e){}}; i=0; h();';

    72 eval(sEval);

    73 status = inSection(3);

    74 actual = (i>0);

    75 expect = true;

    76 addThis();

    80 // Try in eval scope and mix functions up -

    81 sEval = 'function a(){++i; try{h();} catch(e){}}; i=0; a();';

    82 eval(sEval);

    83 status = inSection(4);

    84 actual = (i>0);

    85 expect = true;

    86 addThis();

    91 //-----------------------------------------------------------------------------

    92 test();

    93 //-----------------------------------------------------------------------------

    97 function addThis()

    98 {

    99   statusitems[UBound] = status;

   100   actualvalues[UBound] = formatThis(actual);

   101   expectedvalues[UBound] = formatThis(expect);

   102   UBound++;

   103 }

   106 function formatThis(bool)

   107 {

   108   return bool? TEST_PASSED : TEST_FAILED;

   109 }

   112 function test()

   113 {

   114   enterFunc('test');

   115   printBugNumber(BUGNUMBER);

   116   printStatus(msg);

   118   for (var i=0; i<UBound; i++)

   119   {

   120     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);

   121   }

   123   exitFunc ('test');

   124 }

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