The Tor Browser: js/src/tests/ecma_3/RegExp/regress-85721.js@129ffea94266 (annotated)

js/src/tests/ecma_3/RegExp/regress-85721.js@129ffea94266 (annotated)

js/src/tests/ecma_3/RegExp/regress-85721.js

Sat, 03 Jan 2015 20:18:00 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Sat, 03 Jan 2015 20:18:00 +0100
branch: TOR_BUG_3246
changeset 7: 129ffea94266
permissions: -rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

 // |reftest| random -- bogus perf test (bug 467263)
 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 /*
  *
  * Date:    14 Feb 2002
  * SUMMARY: Performance: Regexp performance degraded from 4.7
  * See http://bugzilla.mozilla.org/show_bug.cgi?id=85721
  *
  * Adjust this testcase if necessary. The FAST constant defines
  * an upper bound in milliseconds for any execution to take.
  *
  */
 //-----------------------------------------------------------------------------
 var BUGNUMBER = 85721;
 var summary = 'Performance: execution of regular expression';
 var FAST = 100; // execution should be 100 ms or less to pass the test
 var MSG_FAST = 'Execution took less than ' + FAST + ' ms';
 var MSG_SLOW = 'Execution took ';
 var MSG_MS = ' ms';
 var str = '';
 var re = '';
 var status = '';
 var actual = '';
 var expect= '';
 printBugNumber(BUGNUMBER);
 printStatus (summary);
 function elapsedTime(startTime)
 {
   return new Date() - startTime;
 }
 function isThisFast(ms)
 {
   if (ms <= FAST)
     return MSG_FAST;
   return MSG_SLOW + ms + MSG_MS;
 }
 /*
  * The first regexp. We'll test for performance (Section 1) and accuracy (Section 2).
  */
 str='<sql:connection id="conn1"> <sql:url>www.m.com</sql:url> <sql:driver>drive.class</sql:driver>\n<sql:userId>foo</sql:userId> <sql:password>goo</sql:password> </sql:connection>';
 re = /<sql:connection id="([^\r\n]*?)">\s*<sql:url>\s*([^\r\n]*?)\s*<\/sql:url>\s*<sql:driver>\s*([^\r\n]*?)\s*<\/sql:driver>\s*(\s*<sql:userId>\s*([^\r\n]*?)\s*<\/sql:userId>\s*)?\s*(\s*<sql:password>\s*([^\r\n]*?)\s*<\/sql:password>\s*)?\s*<\/sql:connection>/;
 expect = Array("<sql:connection id=\"conn1\"> <sql:url>www.m.com</sql:url> <sql:driver>drive.class</sql:driver>\n<sql:userId>foo</sql:userId> <sql:password>goo</sql:password> </sql:connection>","conn1","www.m.com","drive.class","<sql:userId>foo</sql:userId> ","foo","<sql:password>goo</sql:password> ","goo");
 /*
  *  Check performance -
  */
 status = inSection(1);
 var start = new Date();
 var result = re.exec(str);
 actual = elapsedTime(start);
 reportCompare(isThisFast(FAST), isThisFast(actual), status);
 /*
  *  Check accuracy -
  */
 status = inSection(2);
 testRegExp([status], [re], [str], [result], [expect]);
 /*
  * The second regexp (HUGE!). We'll test for performance (Section 3) and accuracy (Section 4).
  * It comes from the O'Reilly book "Mastering Regular Expressions" by Jeffrey Friedl, Appendix B
  */
 //# Some things for avoiding backslashitis later on.
 $esc        = '\\\\';
 $Period      = '\.';
 $space      = '\040';              $tab         = '\t';
 $OpenBR     = '\\[';               $CloseBR     = '\\]';
 $OpenParen  = '\\(';               $CloseParen  = '\\)';
 $NonASCII   = '\x80-\xff';         $ctrl        = '\000-\037';
 $CRlist     = '\n\015';  //# note: this should really be only \015.
 // Items 19, 20, 21
 $qtext = '[^' + $esc + $NonASCII + $CRlist + '\"]';						  // # for within "..."
 $dtext = '[^' + $esc + $NonASCII + $CRlist + $OpenBR + $CloseBR + ']';    // # for within [...]
 $quoted_pair = $esc + '[^' + $NonASCII + ']';							  // # an escaped character
 //##############################################################################
 //# Items 22 and 23, comment.
 //# Impossible to do properly with a regex, I make do by allowing at most one level of nesting.
 $ctext   =  '[^' + $esc + $NonASCII + $CRlist + '()]';
 //# $Cnested matches one non-nested comment.
 //# It is unrolled, with normal of $ctext, special of $quoted_pair.
 $Cnested =
   $OpenParen +                                 // #  (
   $ctext + '*' +                            // #     normal*
   '(?:' + $quoted_pair + $ctext + '*)*' +   // #     (special normal*)*
   $CloseParen;                                 // #                       )
 //# $comment allows one level of nested parentheses
 //# It is unrolled, with normal of $ctext, special of ($quoted_pair|$Cnested)
 $comment =
   $OpenParen +                                           // #  (
   $ctext + '*' +                                     // #     normal*
   '(?:' +                                            // #       (
   '(?:' + $quoted_pair + '|' + $Cnested + ')' +   // #         special
   $ctext + '*' +                                 // #         normal*
   ')*' +                                             // #            )*
   $CloseParen;                                           // #                )
 //##############################################################################
 //# $X is optional whitespace/comments.
 $X =
   '[' + $space + $tab + ']*' +					       // # Nab whitespace.
   '(?:' + $comment + '[' + $space + $tab + ']*)*';    // # If comment found, allow more spaces.
 //# Item 10: atom
 $atom_char   = '[^(' + $space + '<>\@,;:\".' + $esc + $OpenBR + $CloseBR + $ctrl + $NonASCII + ']';
 $atom =
   $atom_char + '+' +            // # some number of atom characters...
   '(?!' + $atom_char + ')';     // # ..not followed by something that could be part of an atom
 // # Item 11: doublequoted string, unrolled.
 $quoted_str =
   '\"' +                                         // # "
   $qtext + '*' +                              // #   normal
   '(?:' + $quoted_pair + $qtext + '*)*' +     // #   ( special normal* )*
   '\"';                                          // # "
 //# Item 7: word is an atom or quoted string
 $word =
   '(?:' +
   $atom +                // # Atom
   '|' +                  //     #  or
   $quoted_str +          // # Quoted string
   ')'
 //# Item 12: domain-ref is just an atom
   $domain_ref  = $atom;
 //# Item 13: domain-literal is like a quoted string, but [...] instead of  "..."
 $domain_lit  =
   $OpenBR +								   	     // # [
   '(?:' + $dtext + '|' + $quoted_pair + ')*' +     // #    stuff
   $CloseBR;                                        // #           ]
 // # Item 9: sub-domain is a domain-ref or domain-literal
 $sub_domain  =
   '(?:' +
   $domain_ref +
   '|' +
   $domain_lit +
   ')' +
   $X;                 // # optional trailing comments
 // # Item 6: domain is a list of subdomains separated by dots.
 $domain =
   $sub_domain +
   '(?:' +
   $Period + $X + $sub_domain +
   ')*';
 //# Item 8: a route. A bunch of "@ $domain" separated by commas, followed by a colon.
 $route =
   '\@' + $X + $domain +
   '(?:,' + $X + '\@' + $X + $domain + ')*' +  // # additional domains
   ':' +
   $X;					// # optional trailing comments
 //# Item 6: local-part is a bunch of $word separated by periods
 $local_part =
   $word + $X
   '(?:' +
   $Period + $X + $word + $X +		// # additional words
   ')*';
 // # Item 2: addr-spec is local@domain
 $addr_spec  =
   $local_part + '\@' + $X + $domain;
 //# Item 4: route-addr is <route? addr-spec>
 $route_addr =
   '<' + $X +                     // # <
   '(?:' + $route + ')?' +     // #       optional route
   $addr_spec +                // #       address spec
   '>';                           // #                 >
 //# Item 3: phrase........
 $phrase_ctrl = '\000-\010\012-\037'; // # like ctrl, but without tab
 //# Like atom-char, but without listing space, and uses phrase_ctrl.
 //# Since the class is negated, this matches the same as atom-char plus space and tab
 $phrase_char =
   '[^()<>\@,;:\".' + $esc + $OpenBR + $CloseBR + $NonASCII + $phrase_ctrl + ']';
 // # We've worked it so that $word, $comment, and $quoted_str to not consume trailing $X
 // # because we take care of it manually.
 $phrase =
   $word +                                                  // # leading word
   $phrase_char + '*' +                                     // # "normal" atoms and/or spaces
   '(?:' +
   '(?:' + $comment + '|' + $quoted_str + ')' +          // # "special" comment or quoted string
   $phrase_char + '*' +                                  // #  more "normal"
   ')*';
 // ## Item #1: mailbox is an addr_spec or a phrase/route_addr
 $mailbox =
   $X +                                // # optional leading comment
   '(?:' +
   $phrase + $route_addr +     // # name and address
   '|' +                       //     #  or
   $addr_spec +                // # address
   ')';
 //###########################################################################
 re = new RegExp($mailbox, "g");
 str = 'Jeffy<"That Tall Guy"@ora.com (this address is no longer active)>';
 expect = Array('Jeffy<"That Tall Guy"@ora.com (this address is no longer active)>');
 /*
  *  Check performance -
  */
 status = inSection(3);
 var start = new Date();
 var result = re.exec(str);
 actual = elapsedTime(start);
 reportCompare(isThisFast(FAST), isThisFast(actual), status);
 /*
  *  Check accuracy -
  */
 status = inSection(4);
 testRegExp([status], [re], [str], [result], [expect]);