JavaScript Test - regression test for bug 335700, by Charles Verdon, Brendan Eich

js/tests/js1_5/extensions/regress-335700.js

@@ -0,0 +1,125 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla 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/MPL/
+ *
+ * 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 JavaScript Engine testing utilities.
+ *
+ * The Initial Developer of the Original Code is
+ * Mozilla Foundation.
+ * Portions created by the Initial Developer are Copyright (C) 2006
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s): Charles Verdon
+ *                 Brendan Eich
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+//-----------------------------------------------------------------------------
+var bug = 335700;
+var summary = 'Object Construction with getter closures should be O(N)';
+var actual = '';
+var expect = '';
+
+printBugNumber (bug);
+printStatus (summary);
+  
+test('Object', Object);
+test('ObjectWithFunction', ObjectWithFunction);
+test('ObjectWithGetter', ObjectWithGetter);
+
+function test(desc, ctor)
+{
+  var start = 00000;
+  var stop  = 40000;
+  var incr  = (stop - start)/10;
+
+  desc = summary + ': ' + desc;
+
+  var data = {X:[], Y:[]};
+  for (var i = start; i <= stop; i += incr)
+  {  
+    data.X.push(i);
+    data.Y.push(runStart(ctor, i));
+    gc();
+  }
+
+  var order = BigO(data);
+
+  var msg = '';
+  for (var p = 0; p < data.X.length; p++)
+  { 
+    msg += '(' + data.X[p] + ', ' + data.Y[p] + '); ';
+  }
+
+  print(msg);
+  
+  reportCompare(true, order < 2, desc + ': BigO ' + order + ' < 2');
+
+}
+
+function ObjectWithFunction()
+{
+  var m_var = null;
+  this.init = function(p_var) {
+    m_var = p_var;
+  }
+  this.getVar = function()
+    {
+      return m_var;
+    }
+  this.setVar = function(v)
+    {
+      m_var = v;
+    }
+}
+function ObjectWithGetter()
+{
+  var m_var = null;
+  this.init = function(p_var) {
+    m_var = p_var;
+  }
+  this.Var getter = function() {
+    return m_var;
+  }
+  this.Var setter = function(v) {
+    m_var = v;
+  }
+}
+
+function runStart(ctor, limit)
+{
+  var arr = [];
+  var start = Date.now();
+
+  for (var i=0; i < limit; i++) {
+    var obj = new ctor();
+    obj.Var = 42;
+    arr.push(obj);
+  }
+	
+  var end = Date.now();
+  var diff = end - start;
+
+  return diff;
+}