js/tests/js1_5/Regress/regress-416628.js

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
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  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is JavaScript Engine testing utilities.
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Mozilla Foundation.
  19  * Portions created by the Initial Developer are Copyright (C) 2007
  20  * the Initial Developer. All Rights Reserved.
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  22  * Contributor(s): Brendan Eich
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  26  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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  35  *
  36  * ***** END LICENSE BLOCK ***** */
  37
  38 var gTestfile = 'regress-416628.js';
  39 //-----------------------------------------------------------------------------
  40 var BUGNUMBER = 416628;
  41 var summary = 'O(n^2) blowup due to overlong cx->tempPool arena list';
  42 var actual = '';
  43 var expect = '';
  44
  45 //-----------------------------------------------------------------------------
  46 test();
  47 //-----------------------------------------------------------------------------
  48
  49 function test()
  50 {
  51   enterFunc ('test');
  52   printBugNumber(BUGNUMBER);
  53   printStatus (summary);
  54
  55   var data = {X:[], Y:[]};
  56
  57   Function.prototype.inherits = function(parentCtor) {
  58     moo_inherits(this, parentCtor);
  59   };
  60
  61   moo_inherits = function(childCtor, parentCtor) {
  62     /** @constructor */
  63     function tempCtor() {};
  64     tempCtor.prototype = parentCtor.prototype;
  65     childCtor.superClass_ = parentCtor.prototype;
  66     childCtor.prototype = new tempCtor();
  67     childCtor.prototype.constructor = childCtor;
  68   };
  69
  70   var jstart =  100;
  71   var jstop  = 1000;
  72   var jinterval = (jstop - jstart)/9;
  73
  74   if (true) {
  75     for (var j = jstart; j < jstop; j += jinterval)
  76     {
  77       data.X.push(j);
  78       var code = '';
  79       for (var i = 0; i < j; i++)
  80       {
  81         code += createCode(i);
  82       }
  83       gc();
  84       var start = new Date();
  85       eval(code);
  86       var stop = new Date();
  87       data.Y.push(stop - start);
  88     }
  89   }
  90
  91   var order = BigO(data);
  92
  93   var msg = '';
  94   for (var p = 0; p < data.X.length; p++)
  95   {
  96     msg += '(' + data.X[p] + ', ' + data.Y[p] + '); ';
  97   }
  98   printStatus(msg);
  99   printStatus('Order: ' + order);
 100
 101   reportCompare(true, order < 2, 'BigO ' + order + ' < 2');
 102
 103   exitFunc ('test');
 104 }
 105
 106 function createCode(i)
 107 {
 108   var code = '';
 109
 110   code += "var str1_" + i + "='This is 1 a test " + i + " string.';";
 111   code += "var str2_" + i + "='This is 2 a test " + i + " string.';";
 112   code += "var str3_" + i + "='This is 3 a test " + i + " string.';";
 113   code += "var str4_" + i + "='This is 4 a test " + i + " string.';";
 114   code += "var str5_" + i + "='This is 5 a test " + i + " string.';";
 115   code += "var str6_" + i + "='This is 6 a test " + i + " string.';";
 116   code += "var str7_" + i + "='This is 7 a test " + i + " string.';";
 117   code += "";
 118   code += "var base" + i + " = function() {this.a_=4;this.b_=5};";
 119   code += "base" + i + ".f1 = function() {this.a_=4;this.b_=5};";
 120   code += "base" + i + ".prototype.f2 = function() {this.a_=4;this.b_=5};";
 121   code += "base" + i + ".prototype.f3 = function() {this.a_=4;this.b_=5};";
 122   code += "base" + i + ".prototype.f4 = function() {this.a_=4;this.b_=5};";
 123   code += "base" + i + ".prototype.f5 = function() {this.a_=4;this.b_=5};";
 124   code += "";
 125   code += "var child" + i + " = function() {this.a_=4;this.b_=5};";
 126   code += "child" + i + ".inherits(base" + i + ");";
 127   code += "child" + i + ".f1 = function() {this.a_=4;this.b_=5};";
 128   code += "child" + i + ".prototype.f2 = function() {this.a_=4;this.b_=5};";
 129   code += "child" + i + ".prototype.f3 = function() {this.a_=4;this.b_=5};";
 130   code += "child" + i + ".prototype.f4 = function() {this.a_=4;this.b_=5};";
 131   code += "child" + i + ".prototype.f5 = function() {this.a_=4;this.b_=5};";
 132   code += "";
 133   code += "var gchild" + i + " = function() {this.a_=4;this.b_=5};";
 134   code += "gchild" + i + ".inherits(child" + i + ");";
 135   code += "gchild" + i + ".f1 = function() {this.a_=4;this.b_=5};";
 136   code += "gchild" + i + ".prototype.f2 = function() {this.a_=4;this.b_=5};";
 137   code += "gchild" + i + ".prototype.f3 = function() {this.a_=4;this.b_=5};";
 138   code += "gchild" + i + ".prototype.f4 = function() {this.a_=4;this.b_=5};";
 139   code += "gchild" + i + ".prototype.f5 = function() {this.a_=4;this.b_=5};";
 140
 141   return code;
 142 }