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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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #if !defined (octave_function_h) |
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25 #define octave_function_h 1 |
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26 |
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27 #include <string> |
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28 |
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29 #include "oct-time.h" |
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30 #include "str-vec.h" |
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31 |
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32 #include "oct-alloc.h" |
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33 #include "oct-obj.h" |
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34 #include "ov-base.h" |
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35 #include "ov-typeinfo.h" |
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36 |
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37 class tree_walker; |
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38 |
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39 // Functions. |
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40 |
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41 class |
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42 octave_function : public octave_base_value |
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43 { |
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44 public: |
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45 |
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46 octave_function (void) { } |
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47 |
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48 ~octave_function (void) { } |
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49 |
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50 octave_base_value *clone (void) const; |
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51 octave_base_value *empty_clone (void) const; |
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52 |
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53 bool is_defined (void) const { return true; } |
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54 |
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55 bool is_function (void) const { return true; } |
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56 |
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57 virtual bool is_dynamically_loaded_function (void) const { return false; } |
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58 |
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59 virtual bool is_system_fcn_file (void) const { return false; } |
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60 |
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61 virtual std::string fcn_file_name (void) const { return std::string (); } |
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62 |
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63 virtual void mark_fcn_file_up_to_date (const octave_time&) { } |
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64 |
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65 virtual octave_time time_parsed (void) const |
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66 { return octave_time (static_cast<time_t> (0)); } |
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67 |
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68 virtual octave_time time_checked (void) const |
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69 { return octave_time (static_cast<time_t> (0)); } |
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70 |
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71 virtual bool is_nested_function (void) const { return false; } |
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72 |
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73 virtual bool is_user_script (void) const { return false; } |
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74 |
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75 virtual bool is_user_function (void) const { return false; } |
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76 |
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77 virtual bool takes_varargs (void) const { return false; } |
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78 |
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79 virtual void octave_va_start (void) { } |
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80 |
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81 virtual octave_value octave_va_arg (void) { return octave_value (); } |
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82 |
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83 virtual octave_value_list octave_all_va_args (void) |
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84 { return octave_value_list (); } |
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85 |
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86 virtual bool takes_var_return (void) const { return false; } |
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87 |
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88 virtual void octave_vr_val (const octave_value&) { } |
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89 |
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90 virtual bool has_varargout (void) const { return false; } |
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91 |
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92 std::string name (void) const { return my_name; } |
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93 |
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94 void document (const std::string& ds) { doc = ds; } |
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95 |
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96 std::string doc_string (void) const { return doc; } |
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97 |
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98 virtual void unload (void) { } |
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99 |
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100 virtual void accept (tree_walker&) { } |
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101 |
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102 protected: |
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103 |
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104 octave_function (const std::string& nm, const std::string& ds) |
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105 : my_name (nm), doc (ds) { } |
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106 |
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107 // The name of this function. |
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108 std::string my_name; |
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109 |
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110 // The help text for this function. |
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111 std::string doc; |
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112 |
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113 private: |
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114 |
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115 // No copying! |
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116 |
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117 octave_function (const octave_function& f); |
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118 |
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119 octave_function& operator = (const octave_function& f); |
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120 |
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121 DECLARE_OCTAVE_ALLOCATOR |
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122 }; |
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123 |
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124 #endif |
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125 |
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126 /* |
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127 ;; Local Variables: *** |
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128 ;; mode: C++ *** |
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129 ;; End: *** |
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130 */ |
