| /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ |
| /* This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| |
| /* |
| * |
| * Date: 24 Jan 2002 |
| * SUMMARY: "Too much recursion" errors should be safely caught by try...catch |
| * See http://bugzilla.mozilla.org/show_bug.cgi?id=121658 |
| * |
| * In the cases below, we expect i>0. The bug was filed because we |
| * were getting i===0; i.e. |i| did not retain the value it had at the |
| * location of the error. |
| * |
| */ |
| //----------------------------------------------------------------------------- |
| var UBound = 0; |
| var BUGNUMBER = 121658; |
| var msg = '"Too much recursion" errors should be safely caught by try...catch'; |
| var TEST_PASSED = 'i retained the value it had at location of error'; |
| var TEST_FAILED = 'i did NOT retain this value'; |
| var status = ''; |
| var statusitems = []; |
| var actual = ''; |
| var actualvalues = []; |
| var expect= ''; |
| var expectedvalues = []; |
| var i; |
| |
| |
| function f() |
| { |
| ++i; |
| |
| // try...catch should catch the "too much recursion" error to ensue |
| try |
| { |
| f(); |
| } |
| catch(e) |
| { |
| } |
| } |
| |
| i=0; |
| f(); |
| status = inSection(1); |
| actual = (i>0); |
| expect = true; |
| addThis(); |
| |
| |
| |
| // Now try in function scope - |
| function g() |
| { |
| f(); |
| } |
| |
| i=0; |
| g(); |
| status = inSection(2); |
| actual = (i>0); |
| expect = true; |
| addThis(); |
| |
| |
| |
| // Now try in eval scope - |
| var sEval = 'function h(){++i; try{h();} catch(e){}}; i=0; h();'; |
| eval(sEval); |
| status = inSection(3); |
| actual = (i>0); |
| expect = true; |
| addThis(); |
| |
| |
| |
| // Try in eval scope and mix functions up - |
| sEval = 'function a(){++i; try{h();} catch(e){}}; i=0; a();'; |
| eval(sEval); |
| status = inSection(4); |
| actual = (i>0); |
| expect = true; |
| addThis(); |
| |
| |
| |
| |
| //----------------------------------------------------------------------------- |
| test(); |
| //----------------------------------------------------------------------------- |
| |
| |
| |
| function addThis() |
| { |
| statusitems[UBound] = status; |
| actualvalues[UBound] = formatThis(actual); |
| expectedvalues[UBound] = formatThis(expect); |
| UBound++; |
| } |
| |
| |
| function formatThis(bool) |
| { |
| return bool? TEST_PASSED : TEST_FAILED; |
| } |
| |
| |
| function test() |
| { |
| enterFunc('test'); |
| printBugNumber(BUGNUMBER); |
| printStatus(msg); |
| |
| for (var i=0; i<UBound; i++) |
| { |
| reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]); |
| } |
| |
| exitFunc ('test'); |
| } |