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annotate libinterp/octave-value/cdef-class.h @ 26975:de826e69a5ea

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make breakpoints in classdef methods work (bug #45404, bug #46451) * bp-table.h, bp-table.cc (bp_table::add_breakpoint): New argument, CLASS_NAME. Change all uses. Pass class name on to tree_evaluator::get_user_code. * cdef-class.h, cdef-class.cc (cdef_class::get_method, cdef_class::cdef_class_rep::get_method): New functions. * cdef-manager.h, cdef-manager.cc (cdef_manager::find_method): New function. * pt-eval.h, pt-eval.cc (tree_evaluator::get_user_code): New argument, CLASS_NAME. If given class name, look for classdef methods.
author John W. Eaton <jwe@octave.org>
date Tue, 26 Mar 2019 02:42:38 +0000
parents fbb318c371db
children 396d17dcfb9f
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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 "ov.h"
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39 #include "ovl.h"
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40
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41 namespace octave
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42 {
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43 class interpreter;
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44 class tree_classdef;
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45
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46 class
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47 cdef_class : public cdef_meta_object
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48 {
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49 private:
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50
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51 class
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52 cdef_class_rep : public cdef_meta_object_rep
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53 {
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54 public:
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55 cdef_class_rep (void)
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56 : cdef_meta_object_rep (), member_count (0), handle_class (false),
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57 object_count (0), meta (false)
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58 { }
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59
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60 cdef_class_rep (const std::list<cdef_class>& superclasses);
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61
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62 cdef_class_rep& operator = (const cdef_class_rep&) = delete;
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63
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64 ~cdef_class_rep (void) = default;
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65
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66 cdef_object_rep * copy (void) const { return new cdef_class_rep (*this); }
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67
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68 bool is_class (void) const { return true; }
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69
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70 std::string get_name (void) const
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71 { return get ("Name").string_value (); }
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72
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73 void set_name (const std::string& nm) { put ("Name", nm); }
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74
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75 bool is_abstract (void) const { return get ("Abstract").bool_value (); }
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76
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77 bool is_sealed (void) const { return get ("Sealed").bool_value (); }
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78
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79 cdef_method find_method (const std::string& nm, bool local = false);
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80
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81 void install_method (const cdef_method& meth);
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82
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83 Cell get_methods (bool include_ctor);
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84
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85 std::map<std::string, cdef_method>
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86 get_method_map (bool only_inherited, bool include_ctor);
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87
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88 cdef_property find_property (const std::string& nm);
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89
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90 void install_property (const cdef_property& prop);
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91
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92 Cell get_properties (int mode);
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93
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94 std::map<std::string, cdef_property> get_property_map (int mode);
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95
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96 string_vector get_names (void);
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97
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98 void set_directory (const std::string& dir) { directory = dir; }
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99
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100 std::string get_directory (void) const { return directory; }
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101
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102 void delete_object (const cdef_object& obj);
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103
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104 octave_value_list
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105 meta_subsref (const std::string& type,
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106 const std::list<octave_value_list>& idx, int nargout);
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107
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108 void meta_release (void);
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109
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110 bool meta_accepts_postfix_index (char type) const
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111 {
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112 return (type == '(' || type == '.');
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113 }
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114
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115 octave_value get_method (const std::string& name) const;
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116
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117 octave_value construct (const octave_value_list& args);
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118
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119 cdef_object construct_object (const octave_value_list& args);
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120
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121 void initialize_object (cdef_object& obj);
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122
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123 void run_constructor (cdef_object& obj, const octave_value_list& args);
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124
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125 void mark_as_handle_class (void) { handle_class = true; }
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126
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127 bool is_handle_class (void) const { return handle_class; }
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128
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129 void register_object (void) { object_count++; }
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130
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131 void unregister_object (void) { object_count--; }
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132
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133 octave_idx_type static_count (void) const { return member_count; }
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134
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135 void destroy (void)
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136 {
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137 if (member_count)
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138 {
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139 m_count++;
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140 cdef_class lock (this);
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141
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142 member_count = 0;
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143 method_map.clear ();
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144 property_map.clear ();
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145 }
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146 else
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147 delete this;
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148 }
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149
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150 void mark_as_meta_class (void) { meta = true; }
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151
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152 bool is_meta_class (void) const { return meta; }
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153
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154 private:
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155
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156 void load_all_methods (void);
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157
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158 void find_names (std::set<std::string>& names, bool all);
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159
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160 void find_properties (std::map<std::string,cdef_property>& props,
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161 int mode = 0);
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162
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163 void find_methods (std::map<std::string, cdef_method>& meths,
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164 bool only_inherited, bool include_ctor = false);
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165
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166 cdef_class wrap (void)
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167 {
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168 m_count++;
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169 return cdef_class (this);
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170 }
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171
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172 // The @-directory were this class is loaded from.
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173 // (not used yet)
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174
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175 std::string directory;
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176
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177 // The methods defined by this class.
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178
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179 std::map<std::string,cdef_method> method_map;
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180
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181 // The properties defined by this class.
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182
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183 std::map<std::string,cdef_property> property_map;
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184
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185 // The number of members in this class (methods, properties...)
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186
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187 octave_idx_type member_count;
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188
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189 // TRUE if this class is a handle class. A class is a handle
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190 // class when the abstract "handle" class is one of its superclasses.
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191
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192 bool handle_class;
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193
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194 // The list of super-class constructors that are called implicitly by the
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195 // the classdef engine when creating an object. These constructors are not
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196 // called explicitly by the class constructor.
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197
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198 std::list<cdef_class> implicit_ctor_list;
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199
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200 // The number of objects of this class.
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201
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202 refcount<octave_idx_type> object_count;
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203
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204 // TRUE if this class is a built-in meta class.
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205
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206 bool meta;
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207
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208 // Utility iterator typedefs.
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209
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210 typedef std::map<std::string,cdef_method>::iterator method_iterator;
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211 typedef std::map<std::string,cdef_method>::const_iterator method_const_iterator;
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212 typedef std::map<std::string,cdef_property>::iterator property_iterator;
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213 typedef std::map<std::string,cdef_property>::const_iterator property_const_iterator;
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214
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215 cdef_class_rep (const cdef_class_rep& c)
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216 : cdef_meta_object_rep (c), directory (c.directory),
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217 method_map (c.method_map), property_map (c.property_map),
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218 member_count (c.member_count), handle_class (c.handle_class),
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219 implicit_ctor_list (c.implicit_ctor_list),
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220 object_count (c.object_count), meta (c.meta) { }
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221 };
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222
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223 public:
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224
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225 // Create an invalid class object.
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226
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227 cdef_class (void) : cdef_meta_object () { }
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228
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229 cdef_class (const std::string& nm, const std::list<cdef_class>& superclasses)
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230 : cdef_meta_object (new cdef_class_rep (superclasses))
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231 {
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232 get_rep ()->set_name (nm);
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233 }
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234
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235 cdef_class (const cdef_class& cls) : cdef_meta_object (cls) { }
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236
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237 cdef_class (const cdef_object& obj)
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238 : cdef_meta_object (obj)
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239 {
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240 // This should never happen...
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241 if (! is_class ())
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242 error ("internal error: invalid assignment from %s to meta.class object",
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243 class_name ().c_str ());
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244 }
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245
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246 cdef_class& operator = (const cdef_class& cls)
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247 {
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248 cdef_object::operator = (cls);
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249
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250 return *this;
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251 }
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252
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253 ~cdef_class (void) = default;
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254
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255 cdef_method find_method (const std::string& nm, bool local = false);
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256
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257 void install_method (const cdef_method& meth)
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258 {
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259 get_rep ()->install_method (meth);
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260 }
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261
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262 Cell get_methods (bool include_ctor = false)
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263 {
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264 return get_rep ()->get_methods (include_ctor);
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265 }
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266
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267 std::map<std::string, cdef_method>
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268 get_method_map (bool only_inherited = false, bool include_ctor = false)
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269 {
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270 return get_rep ()->get_method_map (only_inherited, include_ctor);
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271 }
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272
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273 cdef_property find_property (const std::string& nm);
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274
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275 void install_property (const cdef_property& prop)
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276 {
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277 get_rep ()->install_property (prop);
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278 }
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279
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280 Cell get_properties (int mode = property_normal)
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281 {
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282 return get_rep ()->get_properties (mode);
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283 }
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284
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285 std::map<std::string, cdef_property>
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286 get_property_map (int mode = property_normal)
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287 {
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288 return get_rep ()->get_property_map (mode);
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289 }
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290
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291 string_vector get_names (void) { return get_rep ()->get_names (); }
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292
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293 bool is_abstract (void) const { return get_rep ()->is_abstract (); }
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294
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295 bool is_sealed (void) const { return get_rep ()->is_sealed (); }
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296
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297 void set_directory (const std::string& dir)
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298 {
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299 get_rep ()->set_directory (dir);
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300 }
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301
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302 std::string get_directory (void) const
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303 {
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304 return get_rep ()->get_directory ();
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305 }
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306
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307 std::string get_name (void) const { return get_rep ()->get_name (); }
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308
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309 bool is_builtin (void) const { return get_directory ().empty (); }
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310
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311 void delete_object (const cdef_object& obj)
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312 {
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313 get_rep ()->delete_object (obj);
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314 }
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315
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316 //! Analyze the tree_classdef tree and transform it to a cdef_class
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317 //!
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318 //! <b>All attribute validation should occur here.</b>
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319 //!
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320 //! Classdef attribute values can be given in the form of
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321 //! expressions. These expressions must be evaluated before
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322 //! assigning them as attribute values. Evaluating them as they are
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323 //! parsed causes trouble with possible recusion in the parser so we
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324 //! do it here. For example
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325 //!
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326 //! @code
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327 //! classdef recursion_class
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328 //! methods (Access = ?recursion_class)
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329 //! endmethods
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330 //! endclassdef
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331 //! @endcode
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332 //!
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333 //! will fail because each attempt to compute the metaclass of
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334 //! recursion_class will cause recursion_class to be parsed again.
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335
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336 static cdef_class
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337 make_meta_class (interpreter& interp, tree_classdef *t,
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338 bool is_at_folder = false);
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339
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340 octave_value get_method (const std::string& nm) const
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341 {
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342 return get_rep ()->get_method (nm);
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343 }
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344
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345 octave_function * get_method_function (const std::string& nm);
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346
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347 octave_function * get_constructor_function (void)
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348 {
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349 return get_method_function (get_name ());
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350 }
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351
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352 octave_value construct (const octave_value_list& args)
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353 {
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354 return get_rep ()->construct (args);
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355 }
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356
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357 cdef_object construct_object (const octave_value_list& args)
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358 {
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359 return get_rep ()->construct_object (args);
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360 }
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361
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362 void initialize_object (cdef_object& obj)
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363 {
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364 get_rep ()->initialize_object (obj);
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365 }
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366
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367 void run_constructor (cdef_object& obj, const octave_value_list& args)
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368 {
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369 get_rep ()->run_constructor (obj, args);
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370 }
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371
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372 void mark_as_handle_class (void)
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373 {
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374 get_rep ()->mark_as_handle_class ();
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375 }
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376
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377 bool is_handle_class (void) const
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378 {
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379 return get_rep ()->is_handle_class ();
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380 }
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381
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382 void mark_as_meta_class (void) { get_rep ()->mark_as_meta_class (); }
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383
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384 bool is_meta_class (void) const { return get_rep ()->is_meta_class (); }
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385
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386 void register_object (void) { get_rep ()->register_object (); }
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387
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388 void unregister_object (void) { get_rep ()->unregister_object (); }
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389
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390 public:
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391
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392 enum
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393 {
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394 property_normal,
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395 property_inherited,
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396 property_all
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397 };
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398
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399 private:
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400
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401 cdef_class_rep * get_rep (void)
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402 {
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403 return dynamic_cast<cdef_class_rep *> (cdef_object::get_rep ());
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404 }
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405
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406 const cdef_class_rep * get_rep (void) const
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407 {
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408 return dynamic_cast<const cdef_class_rep *> (cdef_object::get_rep ());
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409 }
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410
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diff changeset
411 friend bool operator == (const cdef_class&, const cdef_class&);
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412 friend bool operator != (const cdef_class&, const cdef_class&);
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413 friend bool operator < (const cdef_class&, const cdef_class&);
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414
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415 friend void install_classdef (interpreter& interp);
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416 };
2f847e3e8d6b split classdef into multiple smaller source files
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417
26774
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diff changeset
418 inline bool
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419 operator == (const cdef_class& clsa, const cdef_class& clsb)
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420 {
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421 // FIXME: is this really the right way to check class equality?
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422
26774
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423 return (clsa.get_rep () == clsb.get_rep ());
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424 }
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425
26774
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426 inline bool
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diff changeset
427 operator != (const cdef_class& clsa, const cdef_class& clsb)
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428 {
26774
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diff changeset
429 return ! (clsa == clsb);
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430 }
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431
26774
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432 // This is only to be able to use cdef_class as map keys.
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433
26774
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434 inline bool
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diff changeset
435 operator < (const cdef_class& clsa, const cdef_class& clsb)
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436 {
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437 return clsa.get_rep () < clsb.get_rep ();
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438 }
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439
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440 inline cdef_method
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441 cdef_class::find_method (const std::string& nm, bool local)
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442 {
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443 return get_rep ()->find_method (nm, local);
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444 }
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445
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446 inline cdef_property
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447 cdef_class::find_property (const std::string& nm)
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448 {
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449 return get_rep ()->find_property (nm);
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450 }
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451 }
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452
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453 #endif