pt-cell.h

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00001 /*
00002 
00003 Copyright (C) 1999-2012 John W. Eaton
00004 
00005 This file is part of Octave.
00006 
00007 Octave is free software; you can redistribute it and/or modify it
00008 under the terms of the GNU General Public License as published by the
00009 Free Software Foundation; either version 3 of the License, or (at your
00010 option) any later version.
00011 
00012 Octave is distributed in the hope that it will be useful, but WITHOUT
00013 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00014 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
00015 for more details.
00016 
00017 You should have received a copy of the GNU General Public License
00018 along with Octave; see the file COPYING.  If not, see
00019 <http://www.gnu.org/licenses/>.
00020 
00021 */
00022 
00023 #if !defined (octave_tree_cell_h)
00024 #define octave_tree_cell_h 1
00025 
00026 #include <iosfwd>
00027 
00028 class octave_value;
00029 class octave_value_list;
00030 class tree_argument_list;
00031 
00032 class tree_walker;
00033 
00034 #include "pt-mat.h"
00035 #include "symtab.h"
00036 
00037 // General cells.
00038 
00039 class
00040 tree_cell : public tree_matrix
00041 {
00042 public:
00043 
00044   tree_cell (tree_argument_list *row = 0, int l = -1, int c = -1)
00045     : tree_matrix (row, l, c) { }
00046 
00047   ~tree_cell (void) { }
00048 
00049   bool rvalue_ok (void) const { return true; }
00050 
00051   octave_value rvalue1 (int nargout = 1);
00052 
00053   octave_value_list rvalue (int);
00054 
00055   tree_expression *dup (symbol_table::scope_id scope,
00056                         symbol_table::context_id context) const;
00057 
00058   void accept (tree_walker& tw);
00059 
00060 private:
00061 
00062   // No copying!
00063 
00064   tree_cell (const tree_cell&);
00065 
00066   tree_cell& operator = (const tree_cell&);
00067 };
00068 
00069 #endif
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