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annotate libinterp/parse-tree/pt.h @ 18702:fa53284d4511 draft lyh

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Fix warnings
author LYH <lyh.kernel@gmail.com>
date Fri, 21 Mar 2014 14:59:39 -0400
parents ebb3ef964372
children 4197fc428c7d
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1 /*
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2
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3 Copyright (C) 1996-2013 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if !defined (octave_pt_h)
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24 #define octave_pt_h 1
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25
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26 #include <string>
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27
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28 #include <iosfwd>
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29
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30 class octave_function;
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31 class tree_walker;
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32
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33 // Base class for the parse tree.
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34
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35 class
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36 tree
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37 {
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38 public:
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39
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40 tree (int l = -1, int c = -1)
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41 : line_num (l), column_num (c), bp (false) { }
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42
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43 virtual ~tree (void) { }
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44
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45 virtual int line (void) const { return line_num; }
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46
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47 virtual int column (void) const { return column_num; }
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48
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49 void line (int l) { line_num = l; }
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50
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51 void column (int c) { column_num = c; }
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52
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53 void set_location (int l, int c)
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54 {
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55 line_num = l;
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56 column_num = c;
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57 }
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58
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59 virtual void set_breakpoint (void) { bp = true; }
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60
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61 virtual void delete_breakpoint (void) { bp = false; }
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62
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63 bool is_breakpoint (void) const { return bp; }
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64
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65 std::string str_print_code (void);
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66
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67 virtual void accept (tree_walker& tw) = 0;
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68
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69 private:
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70
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71 // The input line and column where we found the text that was
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72 // eventually converted to this tree node.
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73 int line_num;
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74 int column_num;
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75
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76 // Breakpoint flag.
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77 bool bp;
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78
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79 // No copying!
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80
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81 tree (const tree&);
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82
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83 tree& operator = (const tree&);
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84 };
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85
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86 #endif