Line data    Source code

       1             : /*
       2             :     Mosh: the mobile shell
       3             :     Copyright 2012 Keith Winstein
       4             : 
       5             :     This program is free software: you can redistribute it and/or modify
       6             :     it under the terms of the GNU General Public License as published by
       7             :     the Free Software Foundation, either version 3 of the License, or
       8             :     (at your option) any later version.
       9             : 
      10             :     This program is distributed in the hope that it will be useful,
      11             :     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12             :     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      13             :     GNU General Public License for more details.
      14             : 
      15             :     You should have received a copy of the GNU General Public License
      16             :     along with this program.  If not, see <http://www.gnu.org/licenses/>.
      17             : 
      18             :     In addition, as a special exception, the copyright holders give
      19             :     permission to link the code of portions of this program with the
      20             :     OpenSSL library under certain conditions as described in each
      21             :     individual source file, and distribute linked combinations including
      22             :     the two.
      23             : 
      24             :     You must obey the GNU General Public License in all respects for all
      25             :     of the code used other than OpenSSL. If you modify file(s) with this
      26             :     exception, you may extend this exception to your version of the
      27             :     file(s), but you are not obligated to do so. If you do not wish to do
      28             :     so, delete this exception statement from your version. If you delete
      29             :     this exception statement from all source files in the program, then
      30             :     also delete it here.
      31             : */
      32             : 
      33             : #ifndef PARSERTRANSITION_HPP
      34             : #define PARSERTRANSITION_HPP
      35             : 
      36             : #include <stdlib.h>
      37             : 
      38             : #include "parseraction.h"
      39             : 
      40             : namespace Parser {
      41             :   class State;
      42             : 
      43   288758108 :   class Transition
      44             :   {
      45             :   public:
      46             :     // Transition is only a courier for an Action; it should
      47             :     // never create/delete one on its own.
      48             :     ActionPointer action;
      49             :     State *next_state;
      50             : 
      51    72189527 :     Transition( const Transition &x )
      52    72189527 :       : action( x.action ),
      53    72189527 :         next_state( x.next_state ) {}
      54             :     Transition & operator=( const Transition &t )
      55             :     {
      56             :       action = t.action;
      57             :       next_state = t.next_state;
      58             : 
      59             :       return *this;
      60             :     }
      61    72129489 :     Transition( ActionPointer s_action=shared::make_shared< Ignore >(), State *s_next_state=NULL )
      62   144258978 :       : action( s_action ), next_state( s_next_state )
      63             :     {}
      64             : 
      65             :     // This is only ever used in the 1-argument form;
      66             :     // we use this instead of an initializer to
      67             :     // tell Coverity the object never owns *action.
      68    72219544 :     Transition( State *s_next_state, ActionPointer s_action=shared::make_shared< Ignore >() )
      69    72279582 :       : action( s_action ), next_state( s_next_state )
      70             :     {}
      71             :   };
      72             : }
      73             : 
      74             : #endif