LCOV - code coverage report
Current view: directory - objdir/dist/include - nsTSubstringTuple.h (source / functions) Found Hit Coverage
Test: app.info Lines: 8 8 100.0 %
Date: 2012-06-02 Functions: 8 8 100.0 %

       1                 : //* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* vim:set ts=2 sw=2 sts=2 et cindent: */
       3                 : /* ***** BEGIN LICENSE BLOCK *****
       4                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       5                 :  *
       6                 :  * The contents of this file are subject to the Mozilla Public License Version
       7                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       8                 :  * the License. You may obtain a copy of the License at
       9                 :  * http://www.mozilla.org/MPL/
      10                 :  *
      11                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      12                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      13                 :  * for the specific language governing rights and limitations under the
      14                 :  * License.
      15                 :  *
      16                 :  * The Original Code is Mozilla.
      17                 :  *
      18                 :  * The Initial Developer of the Original Code is IBM Corporation.
      19                 :  * Portions created by IBM Corporation are Copyright (C) 2003
      20                 :  * IBM Corporation. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   Darin Fisher <darin@meer.net>
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      27                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : 
      40                 :   /**
      41                 :    * nsTSubstringTuple_CharT
      42                 :    *
      43                 :    * Represents a tuple of string fragments.  Built as a recursive binary tree.
      44                 :    * It is used to implement the concatenation of two or more string objects.
      45                 :    *
      46                 :    * NOTE: This class is a private implementation detail and should never be 
      47                 :    * referenced outside the string code.
      48                 :    */
      49                 : class nsTSubstringTuple_CharT
      50                 :   {
      51                 :     public:
      52                 : 
      53                 :       typedef CharT                      char_type;
      54                 :       typedef nsCharTraits<char_type>    char_traits;
      55                 : 
      56                 :       typedef nsTSubstringTuple_CharT    self_type;
      57                 :       typedef nsTSubstring_CharT         substring_type;
      58                 :       typedef nsTSubstring_CharT         base_string_type;
      59                 :       typedef PRUint32                   size_type;
      60                 : 
      61                 :     public:
      62                 : 
      63          839053 :       nsTSubstringTuple_CharT(const base_string_type* a, const base_string_type* b)
      64                 :         : mHead(nsnull)
      65                 :         , mFragA(a)
      66          839053 :         , mFragB(b) {}
      67                 : 
      68           63278 :       nsTSubstringTuple_CharT(const self_type& head, const base_string_type* b)
      69                 :         : mHead(&head)
      70                 :         , mFragA(nsnull) // this fragment is ignored when head != nsnull
      71           63278 :         , mFragB(b) {}
      72                 : 
      73                 :         /**
      74                 :          * computes the aggregate string length
      75                 :          */
      76                 :       size_type Length() const;
      77                 : 
      78                 :         /**
      79                 :          * writes the aggregate string to the given buffer.  bufLen is assumed
      80                 :          * to be equal to or greater than the value returned by the Length()
      81                 :          * method.  the string written to |buf| is not null-terminated.
      82                 :          */
      83                 :       void WriteTo(char_type *buf, PRUint32 bufLen) const;
      84                 : 
      85                 :         /**
      86                 :          * returns true if this tuple is dependent on (i.e., overlapping with)
      87                 :          * the given char sequence.
      88                 :          */
      89                 :       bool IsDependentOn(const char_type *start, const char_type *end) const;
      90                 : 
      91                 :     private:
      92                 : 
      93                 :       const self_type*        mHead;
      94                 :       const base_string_type* mFragA;
      95                 :       const base_string_type* mFragB;
      96                 :   };
      97                 : 
      98                 : inline
      99                 : const nsTSubstringTuple_CharT
     100          839053 : operator+(const nsTSubstringTuple_CharT::base_string_type& a, const nsTSubstringTuple_CharT::base_string_type& b)
     101                 :   {
     102          839053 :     return nsTSubstringTuple_CharT(&a, &b);
     103                 :   }
     104                 : 
     105                 : inline
     106                 : const nsTSubstringTuple_CharT
     107           63278 : operator+(const nsTSubstringTuple_CharT& head, const nsTSubstringTuple_CharT::base_string_type& b)
     108                 :   {
     109           63278 :     return nsTSubstringTuple_CharT(head, &b);
     110                 :   }

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