| /* -*- 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: 18 Jun 2002 |
| * SUMMARY: Shouldn't crash when catch parameter is "hidden" by varX |
| * See http://bugzilla.mozilla.org/show_bug.cgi?id=146596 |
| * |
| */ |
| //----------------------------------------------------------------------------- |
| var UBound = 0; |
| var BUGNUMBER = 146596; |
| var summary = "Shouldn't crash when catch parameter is 'hidden' by varX"; |
| var status = ''; |
| var statusitems = []; |
| var actual = ''; |
| var actualvalues = []; |
| var expect= ''; |
| var expectedvalues = []; |
| |
| |
| /* |
| * Just seeing we don't crash when executing this function - |
| * This example provided by jim-patterson@ncf.ca |
| * |
| * Brendan: "Jim, thanks for the testcase. But note that |var| |
| * in a JS function makes a function-scoped variable -- JS lacks |
| * block scope apart from for catch variables within catch blocks. |
| * |
| * Therefore the catch variable hides the function-local variable." |
| */ |
| function F() |
| { |
| try |
| { |
| return "A simple exception"; |
| } |
| catch(e) |
| { |
| var e = "Another exception"; |
| } |
| |
| return 'XYZ'; |
| } |
| |
| status = inSection(1); |
| actual = F(); |
| expect = "A simple exception"; |
| addThis(); |
| |
| |
| |
| /* |
| * Sanity check by Brendan: "This should output |
| * |
| * 24 |
| * 42 |
| * undefined |
| * |
| * and throw no uncaught exception." |
| * |
| */ |
| function f(obj) |
| { |
| var res = []; |
| |
| try |
| { |
| throw 42; |
| } |
| catch(e) |
| { |
| with(obj) |
| { |
| var e; |
| res[0] = e; // |with| binds tighter than |catch|; s/b |obj.e| |
| } |
| |
| res[1] = e; // |catch| binds tighter than function scope; s/b 42 |
| } |
| |
| res[2] = e; // |var e| has function scope; s/b visible but contain |undefined| |
| return res; |
| } |
| |
| status = inSection(2); |
| actual = f({e:24}); |
| expect = [24, 42, undefined]; |
| addThis(); |
| |
| |
| |
| |
| //----------------------------------------------------------------------------- |
| test(); |
| //----------------------------------------------------------------------------- |
| |
| |
| |
| function addThis() |
| { |
| statusitems[UBound] = status; |
| actualvalues[UBound] = actual.toString(); |
| expectedvalues[UBound] = expect.toString(); |
| UBound++; |
| } |
| |
| |
| function test() |
| { |
| enterFunc('test'); |
| printBugNumber(BUGNUMBER); |
| printStatus(summary); |
| |
| for (var i=0; i<UBound; i++) |
| { |
| reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]); |
| } |
| |
| exitFunc ('test'); |
| } |