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annotate libinterp/corefcn/fcn-info.h @ 30564:796f54d4ddbf stable

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update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2021. In all .txi and .texi files except gpl.txi and gpl.texi in the doc/liboctave and doc/interpreter directories, change the copyright to "Octave Project Developers", the same as used for other source files. Update copyright notices for 2022 (not done since 2019). For gpl.txi and gpl.texi, change the copyright notice to be "Free Software Foundation, Inc." and leave the date at 2007 only because this file only contains the text of the GPL, not anything created by the Octave Project Developers. Add Paul Thomas to contributors.in.
author John W. Eaton <jwe@octave.org>
date Tue, 28 Dec 2021 18:22:40 -0500
parents 939bef0b66e0
children e88a07dec498
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1993-2022 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_fcn_info_h)
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27 #define octave_fcn_info_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 <list>
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32 #include <map>
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33 #include <memory>
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34 #include <string>
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35
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36 #include "ov.h"
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37 #include "ovl.h"
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38 #include "symscope.h"
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39
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40 OCTAVE_NAMESPACE_BEGIN
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41
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42 class fcn_info
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43 {
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44 public:
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45
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46 typedef std::map<std::string, octave_value>::const_iterator
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47 str_val_const_iterator;
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48 typedef std::map<std::string, octave_value>::iterator str_val_iterator;
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49
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50 private:
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51
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52 class fcn_info_rep
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53 {
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54 public:
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55
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56 fcn_info_rep (const std::string& nm)
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57 : name (nm), package_name (), local_functions (),
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58 private_functions (), class_constructors (), class_methods (),
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59 cmdline_function (), autoload_function (), function_on_path (),
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60 built_in_function ()
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61 {
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62 std::size_t pos = name.rfind ('.');
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63
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64 if (pos != std::string::npos)
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65 {
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66 package_name = name.substr (0, pos);
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67 name = name.substr (pos+1);
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68 }
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69 }
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70
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71 // No copying!
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72
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73 fcn_info_rep (const fcn_info_rep&) = delete;
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74
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75 fcn_info_rep& operator = (const fcn_info_rep&) = delete;
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76
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77 ~fcn_info_rep (void) = default;
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78
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79 octave_value install_local_function (const std::string& file_name);
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80
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81 octave_value load_private_function (const std::string& dir_name);
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82
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83 octave_value load_class_constructor (void);
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84
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85 octave_value load_class_method (const std::string& dispatch_type);
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86
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87 octave_value find (const symbol_scope& search_scope,
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88 const octave_value_list& args);
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89
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90 octave_value builtin_find (const symbol_scope& search_scope);
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91
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92 octave_value find_scoped_function (const symbol_scope& search_scope);
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93
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94 octave_value find_private_function (const std::string& dir_name);
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95
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96 octave_value find_method (const std::string& dispatch_type);
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97
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98 octave_value find_method (const octave_value_list& args);
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99
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100 octave_value find_autoload (void);
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101
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102 octave_value find_package (void);
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103
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104 octave_value find_user_function (void);
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105
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106 bool is_user_function_defined (void) const
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107 {
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108 return function_on_path.is_defined ();
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109 }
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110
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111 octave_value find_function (const symbol_scope& search_scope,
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112 const octave_value_list& args)
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113 {
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114 return find (search_scope, args);
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115 }
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116
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117 void install_cmdline_function (const octave_value& f)
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118 {
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119 cmdline_function = f;
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120 }
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121
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122 void install_local_function (const octave_value& f,
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123 const std::string& file_name)
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124 {
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125 local_functions[file_name] = f;
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126 }
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127
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128 void install_user_function (const octave_value& f)
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129 {
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130 function_on_path = f;
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131 }
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132
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133 void install_built_in_function (const octave_value& f)
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134 {
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135 built_in_function = f;
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136 }
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137
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138 void install_built_in_dispatch (const std::string& klass);
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139
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140 template <typename T>
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141 void
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142 clear_map (std::map<T, octave_value>& map, bool force = false)
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143 {
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144 auto p = map.begin ();
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145
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146 while (p != map.end ())
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147 {
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148 if (force || ! p->second.islocked ())
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149 map.erase (p++);
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150 else
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151 p++;
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152 }
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153 }
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154
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155 void clear_autoload_function (bool force = false)
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156 {
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157 if (force || ! autoload_function.islocked ())
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158 autoload_function = octave_value ();
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159 }
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160
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161 // We also clear command line functions here, as these are both
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162 // "user defined"
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163 void clear_user_function (bool force = false)
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164 {
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165 clear_autoload_function (force);
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166
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167 if (force || ! function_on_path.islocked ())
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168 function_on_path = octave_value ();
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169
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170 if (force || ! cmdline_function.islocked ())
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171 cmdline_function = octave_value ();
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172 }
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173
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174 void clear_mex_function (void)
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175 {
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176 if (function_on_path.is_mex_function ())
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177 clear_user_function ();
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178 }
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179
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180 void clear_package (void)
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181 {
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182 package = octave_value ();
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183 }
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184
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185 void clear (bool force = false)
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186 {
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187 clear_map (local_functions, force);
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188 clear_map (private_functions, force);
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189 clear_map (class_constructors, force);
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190 clear_map (class_methods, force);
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191
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192 clear_autoload_function (force);
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193 clear_user_function (force);
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194 clear_package ();
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195 }
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196
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197 octave_value dump (void) const;
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198
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199 std::string full_name (void) const
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200 {
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201 if (package_name.empty ())
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202 return name;
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203 else
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204 return package_name + '.' + name;
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205 }
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206
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207 std::string name;
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208
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209 std::string package_name;
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210
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211 // File name to function object.
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212 std::map<std::string, octave_value> local_functions;
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213
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214 // Directory name to function object.
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215 std::map<std::string, octave_value> private_functions;
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216
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217 // Class name to function object.
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218 std::map<std::string, octave_value> class_constructors;
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219
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220 // Dispatch type to function object.
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221 std::map<std::string, octave_value> class_methods;
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222
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223 octave_value cmdline_function;
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224
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225 octave_value autoload_function;
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226
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227 octave_value function_on_path;
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228
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229 octave_value package;
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230
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231 octave_value built_in_function;
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232
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233 private:
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234
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235 octave_value xfind (const symbol_scope& search_scope,
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236 const octave_value_list& args);
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237
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238 octave_value x_builtin_find (const symbol_scope& search_scope);
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239 };
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240
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241 public:
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242
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243 fcn_info (const std::string& nm = "")
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244 : m_rep (new fcn_info_rep (nm)) { }
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245
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246 fcn_info (const fcn_info&) = default;
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247
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248 fcn_info& operator = (const fcn_info&) = default;
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249
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250 ~fcn_info (void) = default;
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251
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252 octave_value find (const symbol_scope& search_scope,
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253 const octave_value_list& args = octave_value_list ())
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254 {
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255 return m_rep->find (search_scope, args);
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256 }
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257
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258 octave_value
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259 builtin_find (const symbol_scope& search_scope)
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260 {
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261 return m_rep->builtin_find (search_scope);
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262 }
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263
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264 octave_value find_scoped_function (const symbol_scope& search_scope) const
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265 {
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266 return m_rep->find_scoped_function (search_scope);
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267 }
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268
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269 octave_value find_private_function (const std::string& dir_name) const
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270 {
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271 return m_rep->find_private_function (dir_name);
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272 }
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273
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274 octave_value find_method (const std::string& dispatch_type) const
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275 {
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276 return m_rep->find_method (dispatch_type);
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277 }
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278
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279 octave_value find_built_in_function (void) const
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280 {
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281 return m_rep->built_in_function;
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282 }
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283
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284 octave_value find_cmdline_function (void) const
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285 {
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286 return m_rep->cmdline_function;
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287 }
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288
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289 octave_value find_autoload (void)
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290 {
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291 return m_rep->find_autoload ();
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292 }
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293
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294 // FIXME: find_function_on_path might be a better name?
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295 octave_value find_user_function (void)
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296 {
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297 return m_rep->find_user_function ();
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298 }
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299
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300 bool is_user_function_defined (void) const
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301 {
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302 return m_rep->is_user_function_defined ();
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303 }
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304
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305 octave_value
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306 find_function (const symbol_scope& search_scope,
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307 const octave_value_list& args = octave_value_list ())
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308 {
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309 return m_rep->find_function (search_scope, args);
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310 }
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311
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312 void install_cmdline_function (const octave_value& f)
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313 {
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314 m_rep->install_cmdline_function (f);
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315 }
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316
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317 void install_local_function (const octave_value& f,
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318 const std::string& file_name)
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319 {
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320 m_rep->install_local_function (f, file_name);
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321 }
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322
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323 void install_user_function (const octave_value& f)
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324 {
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325 m_rep->install_user_function (f);
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326 }
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327
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328 void install_built_in_function (const octave_value& f)
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329 {
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330 m_rep->install_built_in_function (f);
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331 }
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332
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333 void install_built_in_dispatch (const std::string& klass)
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334 {
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335 m_rep->install_built_in_dispatch (klass);
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336 }
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337
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338 void clear (bool force = false) { m_rep->clear (force); }
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339
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340 void clear_user_function (bool force = false)
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341 {
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342 m_rep->clear_user_function (force);
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343 }
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344
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345 void clear_autoload_function (bool force = false)
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346 {
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347 m_rep->clear_autoload_function (force);
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348 }
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349
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350 void clear_mex_function (void) { m_rep->clear_mex_function (); }
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351
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352 octave_value dump (void) const { return m_rep->dump (); }
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353
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354 private:
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355
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356 std::shared_ptr<fcn_info_rep> m_rep;
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357 };
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358
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359 extern OCTINTERP_API std::string
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360 get_dispatch_type (const octave_value_list& args);
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361
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362 extern OCTINTERP_API std::string
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363 get_dispatch_type (const octave_value_list& args,
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364 builtin_type_t& builtin_type);
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365
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366 extern octave_value
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367 dump_function_map (const std::map<std::string, octave_value>& fcn_map);
29960
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368
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369 OCTAVE_NAMESPACE_END
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370
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371 #endif