regress-72773.js - mozsearch

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/* -*- 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: 09 May 2001

 * SUMMARY: Regression test: we shouldn't crash on this code

 * See http://bugzilla.mozilla.org/show_bug.cgi?id=72773

 * See ECMA-262 Edition 3 13-Oct-1999, Section 8.6.2 re [[Class]] property.

 * Same as class-001.js - but testing user-defined types here, not

 * native types.  Therefore we expect the [[Class]] property to equal

 * 'Object' in each case -

 * The getJSClass() function we use is in a utility file, e.g. "shell.js"

*/

//-----------------------------------------------------------------------------

var BUGNUMBER = 72773;

var summary = "Regression test: we shouldn't crash on this code";

var status = '';

var actual = '';

var expect = '';

var sToEval = '';

/*

 * This code should produce an error, but not a crash.

 *  'TypeError: Function.prototype.toString called on incompatible object'

*/

sToEval += 'function Cow(name){this.name = name;}'

sToEval += 'function Calf(str){this.name = str;}'

sToEval += 'Calf.prototype = Cow;'

sToEval += 'new Calf().toString();'

status = 'Trying to catch an expected error';

try

  eval(sToEval);

catch(e)

  actual = getJSClass(e);

  expect = 'Error';

//----------------------------------------------------------------------------------------------

test();

//----------------------------------------------------------------------------------------------

function test()

  printBugNumber(BUGNUMBER);

  printStatus (summary);

  reportCompare(expect, actual, status);