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annotate libinterp/octave-value/cdef-method.h @ 33634:4a70f390c85e default tip @

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maint: Merge stable to default.
author Markus Mützel <markus.muetzel@gmx.de>
date Tue, 28 May 2024 15:25:54 +0200
parents 4b601ca024d5
children
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2012-2024 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if ! defined (octave_cdef_method_h)
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27 #define octave_cdef_method_h 1
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28
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29 #include "octave-config.h"
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30
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31 #include <map>
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32 #include <set>
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33 #include <string>
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34
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35 #include "oct-refcount.h"
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36
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37 #include "cdef-object.h"
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38 #include "ov.h"
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39
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40 OCTAVE_BEGIN_NAMESPACE(octave)
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41
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42 class OCTINTERP_API cdef_method : public cdef_meta_object
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43 {
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44 friend class cdef_class;
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45
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46 private:
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47
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48 class cdef_method_rep : public cdef_meta_object_rep
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49 {
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50 public:
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51
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52 cdef_method_rep ()
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53 : cdef_meta_object_rep (), m_function (), m_dispatch_type ()
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54 { }
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55
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56 cdef_method_rep& operator = (const cdef_method_rep& m) = delete;
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57
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58 ~cdef_method_rep () = default;
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59
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60 cdef_object_rep * copy () const { return new cdef_method_rep(*this); }
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61
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62 bool is_method () const { return true; }
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63
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64 std::string get_name () const { return get("Name").string_value (); }
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65
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66 void set_name (const std::string& nm) { put ("Name", nm); }
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67
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68 bool is_static () const { return get("Static").bool_value (); }
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69
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70 octave_value get_function () const { return m_function; }
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71
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72 void set_function (const octave_value& fcn) { m_function = fcn; }
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73
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74 OCTINTERP_API std::string get_doc_string ();
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75
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76 OCTINTERP_API bool check_access () const;
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77
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78 bool is_external () const { return ! m_dispatch_type.empty (); }
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79
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80 void mark_as_external (const std::string& dtype)
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81 {
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82 m_dispatch_type = dtype;
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83 }
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84
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85 OCTINTERP_API octave_value_list
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86 execute (const octave_value_list& args, int nargout,
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87 bool do_check_access = true, const std::string& who = "");
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88
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89 OCTINTERP_API octave_value_list
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90 execute (const cdef_object& obj,
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91 const octave_value_list& args, int nargout,
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92 bool do_check_access = true, const std::string& who = "");
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93
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94 OCTINTERP_API bool is_constructor () const;
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95
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96 OCTINTERP_API bool is_defined_in_class (const std::string& cname) const;
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97
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98 octave_value_list
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99 meta_subsref (const std::string& type,
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100 const std::list<octave_value_list>& idx, int nargout);
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101
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102 bool meta_accepts_postfix_index (char type) const
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103 {
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104 return (type == '(' || type == '.');
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105 }
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106
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107 private:
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108
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109 cdef_method_rep (const cdef_method_rep& m)
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110 : cdef_meta_object_rep (m), m_function (m.m_function),
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111 m_dispatch_type (m.m_dispatch_type)
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112 { }
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113
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114 OCTINTERP_API void check_method ();
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115
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116 cdef_method wrap ()
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117 {
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118 m_count++;
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119 return cdef_method (this);
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120 }
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121
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122 octave_value m_function;
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123
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124 // When non-empty, the method is externally defined and this member
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125 // is used to cache the dispatch type to look for the method.
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126
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127 std::string m_dispatch_type;
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128 };
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129
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130 public:
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131
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132 cdef_method () : cdef_meta_object () { }
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133
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134 cdef_method (const std::string& nm)
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135 : cdef_meta_object (new cdef_method_rep ())
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136 {
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137 get_rep ()->set_name (nm);
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138 }
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139
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140 cdef_method (const cdef_method& meth) : cdef_meta_object (meth) { }
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141
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142 cdef_method (const cdef_object& obj)
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143 : cdef_meta_object (obj)
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144 {
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145 // This should never happen...
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146 if (! is_method ())
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147 error ("internal error: invalid assignment from %s to meta.method object",
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148 class_name ().c_str ());
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149 }
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150
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151 cdef_method& operator = (const cdef_method& meth)
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152 {
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153 cdef_object::operator = (meth);
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154
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155 return *this;
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156 }
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157
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158 ~cdef_method () = default;
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159
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160 // normal invocation
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161 octave_value_list execute (const octave_value_list& args, int nargout,
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162 bool do_check_access = true,
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163 const std::string& who = "")
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164 {
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165 return get_rep ()->execute (args, nargout, do_check_access, who);
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166 }
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167
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168 // dot-invocation: object is pushed as 1st argument
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169 octave_value_list execute (const cdef_object& obj,
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170 const octave_value_list& args, int nargout,
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171 bool do_check_access = true,
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172 const std::string& who = "")
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173 {
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174 return get_rep ()->execute (obj, args, nargout, do_check_access, who);
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175 }
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176
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177 bool check_access () const { return get_rep ()->check_access (); }
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178
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179 std::string get_name () const { return get_rep ()->get_name (); }
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180
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181 bool is_static () const { return get_rep ()->is_static (); }
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182
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183 void set_function (const octave_value& fcn)
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184 {
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185 get_rep ()->set_function (fcn);
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186 }
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187
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188 octave_value get_function () const
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189 {
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190 return get_rep ()->get_function ();
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191 }
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192
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193 std::string get_doc_string ()
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194 {
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195 return get_rep ()->get_doc_string ();
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196 }
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197
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198 bool is_constructor () const
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199 {
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200 return get_rep ()->is_constructor ();
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201 }
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202
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203 bool is_defined_in_class (const std::string& cname) const
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204 {
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205 return get_rep ()->is_defined_in_class (cname);
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206 }
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207
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208 bool is_external () const { return get_rep ()->is_external (); }
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209
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210 void mark_as_external (const std::string& dtype)
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211 {
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212 get_rep ()->mark_as_external (dtype);
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213 }
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214
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215 private:
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216
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217 cdef_method_rep * get_rep ()
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218 {
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219 return dynamic_cast<cdef_method_rep *> (cdef_object::get_rep ());
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220 }
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221
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222 const cdef_method_rep * get_rep () const
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223 {
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224 return dynamic_cast<const cdef_method_rep *> (cdef_object::get_rep ());
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225 }
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226 };
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227
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228 OCTAVE_END_NAMESPACE(octave)
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229
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230 #endif