michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /*
michael@0:  *
michael@0:  * Date:    18 Jun 2002
michael@0:  * SUMMARY: Shouldn't crash when catch parameter is "hidden" by varX
michael@0:  * See http://bugzilla.mozilla.org/show_bug.cgi?id=146596
michael@0:  *
michael@0:  */
michael@0: //-----------------------------------------------------------------------------
michael@0: var UBound = 0;
michael@0: var BUGNUMBER = 146596;
michael@0: var summary = "Shouldn't crash when catch parameter is 'hidden' by varX";
michael@0: var status = '';
michael@0: var statusitems = [];
michael@0: var actual = '';
michael@0: var actualvalues = [];
michael@0: var expect= '';
michael@0: var expectedvalues = [];
michael@0: 
michael@0: 
michael@0: /*
michael@0:  * Just seeing we don't crash when executing this function -
michael@0:  * This example provided by jim-patterson@ncf.ca
michael@0:  *
michael@0:  * Brendan: "Jim, thanks for the testcase. But note that |var|
michael@0:  * in a JS function makes a function-scoped variable --  JS lacks
michael@0:  * block scope apart from for catch variables within catch blocks.
michael@0:  *
michael@0:  * Therefore the catch variable hides the function-local variable."
michael@0:  */
michael@0: function F()
michael@0: {
michael@0:   try
michael@0:   {
michael@0:     return "A simple exception";
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     var e = "Another exception";
michael@0:   }
michael@0: 
michael@0:   return 'XYZ';
michael@0: }
michael@0: 
michael@0: status = inSection(1);
michael@0: actual = F();
michael@0: expect = "A simple exception";
michael@0: addThis();
michael@0: 
michael@0: 
michael@0: 
michael@0: /*
michael@0:  * Sanity check by Brendan: "This should output
michael@0:  *
michael@0:  *             24
michael@0:  *             42
michael@0:  *          undefined
michael@0:  *
michael@0:  * and throw no uncaught exception."
michael@0:  *
michael@0:  */
michael@0: function f(obj)
michael@0: {
michael@0:   var res = [];
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     throw 42;
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     with(obj)
michael@0:     {
michael@0:       var e;
michael@0:       res[0] = e; // |with| binds tighter than |catch|; s/b |obj.e|
michael@0:     }
michael@0: 
michael@0:     res[1] = e;   // |catch| binds tighter than function scope; s/b 42
michael@0:   }
michael@0: 
michael@0:   res[2] = e;     // |var e| has function scope; s/b visible but contain |undefined|
michael@0:   return res;
michael@0: }
michael@0: 
michael@0: status = inSection(2);
michael@0: actual = f({e:24});
michael@0: expect = [24, 42, undefined];
michael@0: addThis();
michael@0: 
michael@0: 
michael@0: 
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: test();
michael@0: //-----------------------------------------------------------------------------
michael@0: 
michael@0: 
michael@0: 
michael@0: function addThis()
michael@0: {
michael@0:   statusitems[UBound] = status;
michael@0:   actualvalues[UBound] = actual.toString();
michael@0:   expectedvalues[UBound] = expect.toString();
michael@0:   UBound++;
michael@0: }
michael@0: 
michael@0: 
michael@0: function test()
michael@0: {
michael@0:   enterFunc('test');
michael@0:   printBugNumber(BUGNUMBER);
michael@0:   printStatus(summary);
michael@0: 
michael@0:   for (var i=0; i<UBound; i++)
michael@0:   {
michael@0:     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
michael@0:   }
michael@0: 
michael@0:   exitFunc ('test');
michael@0: }