зеркало из https://github.com/mozilla/pjs.git
99 строки
3.1 KiB
JavaScript
Executable File
99 строки
3.1 KiB
JavaScript
Executable File
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is JavaScript Engine testing utilities.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2005
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s): timeless
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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//-----------------------------------------------------------------------------
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var bug = 311414;
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var summary = 'RegExp captured tail match should be O(N)';
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var actual = '';
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var expect = '';
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printBugNumber (bug);
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printStatus (summary);
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function q1(n) {
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var c = [];
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c[Math.pow(10, n)] = 1;
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c = c.join(" ");
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var d = Date.now();
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var e = c.match(/(.*)foo$/);
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var f = Date.now();
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return (f - d);
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}
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function q2(n) {
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var c = [];
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c[Math.pow(10, n)] = 1;
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c = c.join(" ");
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var d = Date.now();
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var e = /foo$/.test(c) && c.match(/(.*)foo$/);
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var f = Date.now();
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return (f - d);
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}
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var data1 = {X:[], Y:[]};
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var data2 = {X:[], Y:[]};
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for (var x = 0; x < 5; x++)
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{
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var y1 = q1(x);
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var y2 = q2(x);
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data1.X.push(x);
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data1.Y.push(y1);
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data2.X.push(x);
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data2.Y.push(y2);
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}
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var order1 = BigO(data1);
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var order2 = BigO(data2);
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var msg = '';
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for (var p = 0; p < data1.X.length; p++)
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{
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msg += '(' + data1.X[p] + ', ' + data1.Y[p] + '); ';
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}
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printStatus(msg);
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printStatus('Order: ' + order1);
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reportCompare(true, order1 < 2 , summary + ' BigO ' + order1 + ' < 2');
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msg = '';
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for (var p = 0; p < data2.X.length; p++)
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{
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msg += '(' + data2.X[p] + ', ' + data2.Y[p] + '); ';
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}
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printStatus(msg);
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printStatus('Order: ' + order2);
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reportCompare(true, order2 < 2 , summary + ' BigO ' + order2 + ' < 2');
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