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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 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 2, or (at your option) any |
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10 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, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if !defined (octave_struct_h) |
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24 #define octave_struct_h 1 |
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25 |
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26 #if defined (__GNUG__) |
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27 #pragma interface |
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28 #endif |
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29 |
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30 #include <cstdlib> |
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31 |
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32 #include <string> |
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33 |
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34 class ostream; |
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35 |
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36 #include "mx-base.h" |
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37 #include "str-vec.h" |
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38 |
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39 #include "error.h" |
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40 #include "oct-alloc.h" |
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41 #include "oct-map.h" |
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42 #include "ov-base.h" |
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43 #include "ov-typeinfo.h" |
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44 |
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45 class Octave_map; |
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46 class octave_value_list; |
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47 |
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48 class tree_walker; |
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49 |
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50 // Data structures. |
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51 |
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52 class |
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53 octave_struct : public octave_base_value |
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54 { |
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55 public: |
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56 |
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57 octave_struct (void) |
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58 : octave_base_value () { } |
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59 |
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60 octave_struct (const Octave_map& m) |
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61 : octave_base_value (), map (m) { } |
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62 |
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63 octave_struct (const octave_struct& s) |
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64 : octave_base_value (), map (s.map) { } |
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65 |
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66 ~octave_struct (void) { } |
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67 |
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68 octave_value *clone (void) { return new octave_struct (*this); } |
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69 |
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70 void *operator new (size_t size) |
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71 { return allocator.alloc (size); } |
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72 |
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73 void operator delete (void *p, size_t size) |
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74 { allocator.free (p, size); } |
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75 |
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76 octave_value |
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77 do_struct_elt_index_op (const string& nm, const octave_value_list& idx, |
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78 bool silent); |
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79 |
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80 octave_value do_struct_elt_index_op (const string& nm, bool silent); |
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81 |
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82 octave_variable_reference |
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83 struct_elt_ref (octave_value *parent, const string& nm); |
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84 |
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85 bool is_defined (void) const { return true; } |
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86 |
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87 bool is_constant (void) const { return false; } |
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88 |
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89 bool is_map (void) const { return true; } |
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90 |
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91 Octave_map map_value (void) const { return map; } |
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92 |
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93 void print (ostream& os, bool pr_as_read_syntax = false) const; |
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94 |
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95 void print_raw (ostream& os, bool pr_as_read_syntax = false) const; |
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96 |
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97 bool print_name_tag (ostream& os, const string& name) const; |
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98 |
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99 int type_id (void) const { return t_id; } |
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100 |
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101 string type_name (void) const { return t_name; } |
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102 |
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103 static int static_type_id (void) { return t_id; } |
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104 |
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105 static void register_type (void) |
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106 { t_id = octave_value_typeinfo::register_type (t_name); } |
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107 |
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108 private: |
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109 |
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110 // The associative array used to manage the structure data. |
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111 Octave_map map; |
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112 |
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113 // For custom memory management. |
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114 static octave_allocator allocator; |
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115 |
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116 // Type id of struct objects, set by register_type(). |
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117 static int t_id; |
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118 |
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119 // Type name of struct objects, defined in ov-struct.cc. |
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120 static const string t_name; |
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121 }; |
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122 |
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123 #endif |
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124 |
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125 /* |
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126 ;;; Local Variables: *** |
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127 ;;; mode: C++ *** |
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128 ;;; End: *** |
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129 */ |
