pjs/js/tests/js1_5/Regress/regress-96128-n.js

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JavaScript

/*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation.
* All Rights Reserved.
*
* Contributor(s): jband@netscape.com, pschwartau@netscape.com
* Date: 29 Aug 2001
*
* SUMMARY: Negative test that JS infinite recursion protection works.
* We expect the code here to fail (i.e. exit code 3), but NOT crash.
*
* See http://bugzilla.mozilla.org/show_bug.cgi?id=96128
*/
//-----------------------------------------------------------------------------
var bug = 96128;
var summary = 'Testing that JS infinite recursion protection works';
function objRecurse()
{
/*
* jband:
*
* Causes a stack overflow crash in debug builds of both the browser
* and the shell. In the release builds this is safely caught by the
* "too much recursion" mechanism. If I remove the 'new' from the code below
* this is safely caught in both debug and release builds. The 'new' causes a
* lookup for the Constructor name and seems to (at least) double the number
* of items on the C stack for the given interpLevel depth.
*/
return new objRecurse();
}
//-----------------------------------------------------------------------------
test();
//-----------------------------------------------------------------------------
function test()
{
enterFunc ('test');
printBugNumber (bug);
printStatus (summary);
// we expect this to fail (exit code 3), but NOT crash. -
var obj = new objRecurse();
exitFunc ('test');
}