michael@0: // |reftest| skip -- slow, obsoleted by 98409 fix
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: var BUGNUMBER = 324278;
michael@0: var summary = 'GC without recursion';
michael@0: var actual = 'No Crash';
michael@0: var expect = 'No Crash';
michael@0: 
michael@0: printBugNumber(BUGNUMBER);
michael@0: printStatus (summary);
michael@0: 
michael@0: // Number to push native stack size beyond 10MB if GC recurses generating
michael@0: // segfault on Fedora Core / Ubuntu Linuxes where the stack size by default
michael@0: // is 10MB/8MB.
michael@0: var N = 100*1000;
michael@0: 
michael@0: function build(N) {
michael@0:   // Exploit the fact that (in ES3), regexp literals are shared between
michael@0:   // function invocations. Thus we build the following chain:
michael@0:   // chainTop: function->regexp->function->regexp....->null
michael@0:   // to check how GC would deal with this chain.
michael@0: 
michael@0:   var chainTop = null;
michael@0:   for (var i = 0; i != N; ++i) {
michael@0:     var f = Function('some_arg'+i, ' return /test/;');
michael@0:     var re = f();
michael@0:     re.previous = chainTop;
michael@0:     chainTop = f;
michael@0:   }
michael@0:   return chainTop;
michael@0: }
michael@0: 
michael@0: function check(chainTop, N) {
michael@0:   for (var i = 0; i != N; ++i) {
michael@0:     var re = chainTop();
michael@0:     chainTop = re.previous;
michael@0:   }
michael@0:   if (chainTop !== null)
michael@0:     throw "Bad chainTop";
michael@0: 
michael@0: }
michael@0: 
michael@0: if (typeof gc != "function") {
michael@0:   gc = function() {
michael@0:     for (var i = 0; i != 50*1000; ++i) {
michael@0:       var tmp = new Object();
michael@0:     }
michael@0:   }
michael@0: }
michael@0: 
michael@0: var chainTop = build(N);
michael@0: printStatus("BUILT");
michael@0: gc();
michael@0: check(chainTop, N);
michael@0: printStatus("CHECKED");
michael@0: chainTop = null;
michael@0: gc();
michael@0:  
michael@0: reportCompare(expect, actual, summary);