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annotate libinterp/octave-value/cdef-class.h @ 27505:c409d16b7190

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eliminate some uses of bare pointers to octave_function objects * pt-classdef.h, pt-classdef.cc (tree_classdef::make_meta_class): Return octave_value instead of pointer to octave_function object. Change all uses. * cdef-class.h, cdef-class.cc (cdef_class::get_method_function, cdef_class::get_constructor_function): Return octave_value instead of pointer to octave_function object. Change all uses. * cdef-manager.h, cdef-manager.cc (classdef_manager::find_method_symbol, classdef_manager::find_package_symbol): Return octave_value instead of pointer to octave_function object. Change all uses. * parse.h, oct-parse.yy (base_parser::primary_fcn): Rename from primary_fcn_ptr and store octave_value instead of pointer to octave_function object. Change all uses.
author John W. Eaton <jwe@octave.org>
date Thu, 10 Oct 2019 13:54:14 -0400
parents c98953e85220
children b442ec6dda5c
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1 /*
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2
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3 Copyright (C) 2012-2019 Michael Goffioul
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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
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9 the Free Software Foundation, either version 3 of the License, or
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10 (at your 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
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13 WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License 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 <https://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_cdef_class_h)
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24 #define octave_cdef_class_h 1
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25
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26 #include "octave-config.h"
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27
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28 #include <map>
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29 #include <set>
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30 #include <string>
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31
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32 #include "oct-refcount.h"
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33
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34 #include "cdef-method.h"
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35 #include "cdef-object.h"
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36 #include "cdef-package.h"
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37 #include "cdef-property.h"
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38 #include "error.h"
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39 #include "ov.h"
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40 #include "ovl.h"
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41
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42 namespace octave
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43 {
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44 class interpreter;
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45 class tree_classdef;
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46
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47 class
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48 cdef_class : public cdef_meta_object
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49 {
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50 private:
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51
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52 class
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53 cdef_class_rep : public cdef_meta_object_rep
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54 {
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55 public:
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56 cdef_class_rep (void)
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57 : cdef_meta_object_rep (), member_count (0), handle_class (false),
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58 meta (false)
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59 { }
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60
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61 cdef_class_rep (const std::list<cdef_class>& superclasses);
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62
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63 cdef_class_rep& operator = (const cdef_class_rep&) = delete;
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64
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65 ~cdef_class_rep (void) = default;
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66
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67 cdef_object_rep * copy (void) const { return new cdef_class_rep (*this); }
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68
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69 bool is_class (void) const { return true; }
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70
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71 std::string get_name (void) const
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72 { return get ("Name").string_value (); }
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73
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74 void set_name (const std::string& nm) { put ("Name", nm); }
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75
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76 bool is_abstract (void) const { return get ("Abstract").bool_value (); }
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77
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78 bool is_sealed (void) const { return get ("Sealed").bool_value (); }
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79
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80 cdef_method find_method (const std::string& nm, bool local = false);
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81
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82 void install_method (const cdef_method& meth);
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83
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84 Cell get_methods (bool include_ctor);
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85
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86 std::map<std::string, cdef_method>
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87 get_method_map (bool only_inherited, bool include_ctor);
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88
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89 cdef_property find_property (const std::string& nm);
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90
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91 void install_property (const cdef_property& prop);
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92
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93 Cell get_properties (int mode);
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94
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95 std::map<std::string, cdef_property> get_property_map (int mode);
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96
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97 string_vector get_names (void);
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98
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99 void set_directory (const std::string& dir) { directory = dir; }
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100
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101 std::string get_directory (void) const { return directory; }
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102
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103 void delete_object (const cdef_object& obj);
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104
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105 octave_value_list
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106 meta_subsref (const std::string& type,
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107 const std::list<octave_value_list>& idx, int nargout);
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108
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109 void meta_release (void);
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110
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111 bool meta_accepts_postfix_index (char type) const
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112 {
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113 return (type == '(' || type == '.');
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114 }
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115
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116 octave_value get_method (const std::string& name) const;
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117
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118 octave_value construct (const octave_value_list& args);
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119
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120 cdef_object construct_object (const octave_value_list& args);
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121
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122 void initialize_object (cdef_object& obj);
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123
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124 void run_constructor (cdef_object& obj, const octave_value_list& args);
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125
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126 void mark_as_handle_class (void) { handle_class = true; }
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127
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128 bool is_handle_class (void) const { return handle_class; }
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129
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130 octave_idx_type static_count (void) const { return member_count; }
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131
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132 void destroy (void)
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133 {
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134 if (member_count)
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135 {
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136 m_count++;
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137 cdef_class lock (this);
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138
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139 member_count = 0;
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140 method_map.clear ();
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141 property_map.clear ();
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142 }
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143 else
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144 delete this;
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145 }
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146
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147 void mark_as_meta_class (void) { meta = true; }
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148
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149 bool is_meta_class (void) const { return meta; }
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150
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151 private:
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152
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153 void load_all_methods (void);
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154
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155 void find_names (std::set<std::string>& names, bool all);
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156
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157 void find_properties (std::map<std::string,cdef_property>& props,
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158 int mode = 0);
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159
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160 void find_methods (std::map<std::string, cdef_method>& meths,
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161 bool only_inherited, bool include_ctor = false);
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162
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163 cdef_class wrap (void)
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164 {
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165 m_count++;
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166 return cdef_class (this);
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167 }
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168
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169 // The @-directory were this class is loaded from.
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170 // (not used yet)
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171
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172 std::string directory;
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173
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174 // The methods defined by this class.
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175
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176 std::map<std::string,cdef_method> method_map;
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177
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178 // The properties defined by this class.
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179
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180 std::map<std::string,cdef_property> property_map;
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181
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182 // The number of members in this class (methods, properties...)
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183
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184 octave_idx_type member_count;
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185
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186 // TRUE if this class is a handle class. A class is a handle
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187 // class when the abstract "handle" class is one of its superclasses.
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188
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189 bool handle_class;
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190
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191 // The list of super-class constructors that are called implicitly by the
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192 // the classdef engine when creating an object. These constructors are not
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193 // called explicitly by the class constructor.
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194
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195 std::list<cdef_class> implicit_ctor_list;
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196
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197 // TRUE if this class is a built-in meta class.
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198
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199 bool meta;
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200
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201 // Utility iterator typedefs.
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202
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203 typedef std::map<std::string,cdef_method>::iterator method_iterator;
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204 typedef std::map<std::string,cdef_method>::const_iterator method_const_iterator;
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205 typedef std::map<std::string,cdef_property>::iterator property_iterator;
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206 typedef std::map<std::string,cdef_property>::const_iterator property_const_iterator;
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207
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208 cdef_class_rep (const cdef_class_rep& c) = default;
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209 };
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210
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211 public:
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212
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213 // Create an invalid class object.
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214
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215 cdef_class (void) : cdef_meta_object () { }
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216
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217 cdef_class (const std::string& nm, const std::list<cdef_class>& superclasses)
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218 : cdef_meta_object (new cdef_class_rep (superclasses))
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219 {
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220 get_rep ()->set_name (nm);
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221 }
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222
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223 cdef_class (const cdef_class& cls) : cdef_meta_object (cls) { }
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224
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225 cdef_class (const cdef_object& obj)
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226 : cdef_meta_object (obj)
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227 {
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228 // This should never happen...
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229 if (! is_class ())
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230 error ("internal error: invalid assignment from %s to meta.class object",
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231 class_name ().c_str ());
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232 }
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233
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234 cdef_class& operator = (const cdef_class& cls)
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235 {
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236 cdef_object::operator = (cls);
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237
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238 return *this;
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239 }
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240
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241 ~cdef_class (void) = default;
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242
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243 cdef_method find_method (const std::string& nm, bool local = false);
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244
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245 void install_method (const cdef_method& meth)
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246 {
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247 get_rep ()->install_method (meth);
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248 }
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249
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250 Cell get_methods (bool include_ctor = false)
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251 {
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252 return get_rep ()->get_methods (include_ctor);
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253 }
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254
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255 std::map<std::string, cdef_method>
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256 get_method_map (bool only_inherited = false, bool include_ctor = false)
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257 {
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258 return get_rep ()->get_method_map (only_inherited, include_ctor);
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259 }
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260
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261 cdef_property find_property (const std::string& nm);
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262
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263 void install_property (const cdef_property& prop)
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264 {
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265 get_rep ()->install_property (prop);
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266 }
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267
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268 Cell get_properties (int mode = property_normal)
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269 {
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270 return get_rep ()->get_properties (mode);
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271 }
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272
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273 std::map<std::string, cdef_property>
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274 get_property_map (int mode = property_normal)
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275 {
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276 return get_rep ()->get_property_map (mode);
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277 }
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278
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279 string_vector get_names (void) { return get_rep ()->get_names (); }
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280
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281 bool is_abstract (void) const { return get_rep ()->is_abstract (); }
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282
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283 bool is_sealed (void) const { return get_rep ()->is_sealed (); }
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284
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285 void set_directory (const std::string& dir)
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286 {
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287 get_rep ()->set_directory (dir);
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288 }
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289
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290 std::string get_directory (void) const
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291 {
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292 return get_rep ()->get_directory ();
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293 }
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294
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295 std::string get_name (void) const { return get_rep ()->get_name (); }
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296
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297 bool is_builtin (void) const { return get_directory ().empty (); }
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298
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299 void delete_object (const cdef_object& obj)
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300 {
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301 get_rep ()->delete_object (obj);
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302 }
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303
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304 //! Analyze the tree_classdef tree and transform it to a cdef_class
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305 //!
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306 //! <b>All attribute validation should occur here.</b>
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307 //!
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308 //! Classdef attribute values can be given in the form of
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309 //! expressions. These expressions must be evaluated before
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310 //! assigning them as attribute values. Evaluating them as they are
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311 //! parsed causes trouble with possible recusion in the parser so we
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312 //! do it here. For example
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313 //!
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314 //! @code
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315 //! classdef recursion_class
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316 //! methods (Access = ?recursion_class)
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317 //! endmethods
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318 //! endclassdef
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319 //! @endcode
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320 //!
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321 //! will fail because each attempt to compute the metaclass of
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322 //! recursion_class will cause recursion_class to be parsed again.
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323
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324 static cdef_class
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325 make_meta_class (interpreter& interp, tree_classdef *t,
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326 bool is_at_folder = false);
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327
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328 octave_value get_method (const std::string& nm) const
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329 {
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330 return get_rep ()->get_method (nm);
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331 }
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332
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333 octave_value get_method_function (const std::string& nm);
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334
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335 octave_value get_constructor_function (void)
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336 {
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337 return get_method_function (get_name ());
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338 }
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339
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340 octave_value construct (const octave_value_list& args)
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341 {
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342 return get_rep ()->construct (args);
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343 }
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344
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345 cdef_object construct_object (const octave_value_list& args)
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346 {
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347 return get_rep ()->construct_object (args);
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348 }
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349
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350 void initialize_object (cdef_object& obj)
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351 {
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352 get_rep ()->initialize_object (obj);
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353 }
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354
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355 void run_constructor (cdef_object& obj, const octave_value_list& args)
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356 {
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357 get_rep ()->run_constructor (obj, args);
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358 }
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359
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360 void mark_as_handle_class (void)
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361 {
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362 get_rep ()->mark_as_handle_class ();
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363 }
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364
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365 bool is_handle_class (void) const
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366 {
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367 return get_rep ()->is_handle_class ();
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368 }
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369
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370 void mark_as_meta_class (void) { get_rep ()->mark_as_meta_class (); }
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371
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372 bool is_meta_class (void) const { return get_rep ()->is_meta_class (); }
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373
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374 public:
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375
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diff changeset
376 enum
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377 {
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378 property_normal,
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379 property_inherited,
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380 property_all
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381 };
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382
2f847e3e8d6b split classdef into multiple smaller source files
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383 private:
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384
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385 cdef_class_rep * get_rep (void)
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386 {
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387 return dynamic_cast<cdef_class_rep *> (cdef_object::get_rep ());
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388 }
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389
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390 const cdef_class_rep * get_rep (void) const
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391 {
568c2ab2782d move classdef classes inside octave namespace
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392 return dynamic_cast<const cdef_class_rep *> (cdef_object::get_rep ());
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393 }
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394
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diff changeset
395 friend bool operator == (const cdef_class&, const cdef_class&);
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396 friend bool operator != (const cdef_class&, const cdef_class&);
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397 friend bool operator < (const cdef_class&, const cdef_class&);
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398
26774
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diff changeset
399 friend void install_classdef (interpreter& interp);
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400 };
2f847e3e8d6b split classdef into multiple smaller source files
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diff changeset
401
26774
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diff changeset
402 inline bool
568c2ab2782d move classdef classes inside octave namespace
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403 operator == (const cdef_class& clsa, const cdef_class& clsb)
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diff changeset
404 {
26774
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405 // FIXME: is this really the right way to check class equality?
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diff changeset
406
26774
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diff changeset
407 return (clsa.get_rep () == clsb.get_rep ());
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408 }
26769
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409
26774
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diff changeset
410 inline bool
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411 operator != (const cdef_class& clsa, const cdef_class& clsb)
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diff changeset
412 {
26774
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diff changeset
413 return ! (clsa == clsb);
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diff changeset
414 }
26769
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415
26774
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diff changeset
416 // This is only to be able to use cdef_class as map keys.
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diff changeset
417
26774
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diff changeset
418 inline bool
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diff changeset
419 operator < (const cdef_class& clsa, const cdef_class& clsb)
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diff changeset
420 {
26774
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diff changeset
421 return clsa.get_rep () < clsb.get_rep ();
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422 }
26769
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diff changeset
423
26774
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diff changeset
424 inline cdef_method
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diff changeset
425 cdef_class::find_method (const std::string& nm, bool local)
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diff changeset
426 {
568c2ab2782d move classdef classes inside octave namespace
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diff changeset
427 return get_rep ()->find_method (nm, local);
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diff changeset
428 }
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429
26774
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diff changeset
430 inline cdef_property
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diff changeset
431 cdef_class::find_property (const std::string& nm)
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diff changeset
432 {
568c2ab2782d move classdef classes inside octave namespace
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433 return get_rep ()->find_property (nm);
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diff changeset
434 }
26773
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diff changeset
435 }
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2f847e3e8d6b split classdef into multiple smaller source files
John W. Eaton <jwe@octave.org>
parents:
diff changeset
436
2f847e3e8d6b split classdef into multiple smaller source files
John W. Eaton <jwe@octave.org>
parents:
diff changeset
437 #endif