annotate libinterp/octave-value/ov-fcn.h @ 23532:084245f9bd03

pass reference to evaluator to octave_function call methods * interpreter-private.h, interpreter-private.cc: (__get_evaluator__): New function. * interpreter.h, interpreter.cc (interpreter::m_evaluator): Now a reference instead of a pointer. Change all uses. (interpreter::get_evaluator): New function. (intrepreter::current_evaluator): Delete. Replace all uses with __get_evaluator__. * ov-fcn.h, ov-fcn.cc (octave_function::call): Pass reference to tree_evaluator. Change all functions in derived classes and all uses. (octave_function::subsref): Delete. * ov-usr-fcn.h, ov-usr-fcn.cc (octave_user_script::subsref): Delete. * pt-eval.h, pt-eval.cc (tree_evaluator::m_interpreter): Now a reference instead of a pointer. Change all uses. * ov-classdef.h, ov-classdef.cc (execute_ov): Delete. Replaces uses with calls to feval. (octave_classdef_superclass_ref::subsref): Delete.
author John W. Eaton <jwe@octave.org>
date Thu, 25 May 2017 13:13:17 -0400
parents 9f925aed7d1b
children 214cb58ccc1c
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1 /*
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2
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3 Copyright (C) 1996-2017 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by
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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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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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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 <http://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_ov_fcn_h)
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24 #define octave_ov_fcn_h 1
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26 #include "octave-config.h"
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28 #include <string>
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30 #include "oct-time.h"
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31 #include "str-vec.h"
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32
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33 #include "ovl.h"
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34 #include "ov-base.h"
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35 #include "ov-typeinfo.h"
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36 #include "symtab.h"
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38 namespace octave
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39 {
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40 class tree_evaluator;
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41 class tree_walker;
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42 }
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43
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44 // Functions.
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45
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46 class
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47 OCTINTERP_API
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48 octave_function : public octave_base_value
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49 {
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50 public:
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51
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52 octave_function (void)
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53 : relative (false), locked (false), private_function (false),
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54 xdispatch_class (), xpackage_name (), my_name (), my_dir_name (),
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55 doc () { }
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57 // No copying!
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58
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59 octave_function (const octave_function& f) = delete;
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60
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61 octave_function& operator = (const octave_function& f) = delete;
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62
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63 ~octave_function (void) = default;
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65 octave_base_value * clone (void) const;
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66 octave_base_value * empty_clone (void) const;
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68 bool is_defined (void) const { return true; }
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69
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70 bool is_function (void) const { return true; }
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72 virtual bool is_system_fcn_file (void) const { return false; }
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74 virtual std::string fcn_file_name (void) const { return ""; }
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76 virtual std::string src_file_name (void) const { return ""; }
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78 // The name to show in the profiler (also used as map-key).
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79 virtual std::string profiler_name (void) const { return name (); }
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81 virtual std::string parent_fcn_name (void) const { return ""; }
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83 virtual symbol_table::scope_id parent_fcn_scope (void) const { return -1; }
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84
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85 virtual void mark_fcn_file_up_to_date (const octave::sys::time&) { }
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86
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87 virtual symbol_table::scope_id scope (void) { return -1; }
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88
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89 virtual octave::sys::time time_parsed (void) const
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90 { return octave::sys::time (static_cast<time_t> (0)); }
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92 virtual octave::sys::time time_checked (void) const
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93 { return octave::sys::time (static_cast<time_t> (0)); }
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94
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95 virtual bool is_subfunction (void) const { return false; }
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96
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97 virtual bool is_class_constructor (const std::string& = "") const
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98 { return false; }
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99
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100 virtual bool
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101 is_classdef_constructor (const std::string& = "") const
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102 { return false; }
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103
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104 virtual bool is_class_method (const std::string& = "") const
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105 { return false; }
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106
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107 virtual bool takes_varargs (void) const { return false; }
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108
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109 virtual bool takes_var_return (void) const { return false; }
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110
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111 // The next two functions are for dispatching to built-in
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112 // functions given built-in classes.
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113
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114 virtual void push_dispatch_class (const std::string&) { }
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115
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116 virtual bool handles_dispatch_class (const std::string&) const
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117 { return false; }
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118
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119 void stash_dispatch_class (const std::string& nm) { xdispatch_class = nm; }
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120
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121 std::string dispatch_class (void) const { return xdispatch_class; }
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122
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123 void stash_package_name (const std::string& pack) { xpackage_name = pack; }
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124
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125 std::string package_name (void) const { return xpackage_name; }
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126
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127 virtual void
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128 mark_as_private_function (const std::string& cname = "")
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129 {
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130 private_function = true;
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131 xdispatch_class = cname;
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132 }
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133
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134 bool is_private_function (void) const { return private_function; }
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135
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136 bool is_private_function_of_class (const std::string& nm) const
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137 { return private_function && xdispatch_class == nm; }
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138
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139 virtual bool
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140 is_anonymous_function_of_class (const std::string& = "") const
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141 { return false; }
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142
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143 std::string dir_name (void) const { return my_dir_name; }
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144
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145 void stash_dir_name (const std::string& dir) { my_dir_name = dir; }
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146
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147 void lock (void)
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148 {
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149 this->lock_subfunctions ();
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150 locked = true;
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151 }
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152
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153 void unlock (void)
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154 {
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155 this->unlock_subfunctions ();
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156 locked = false;
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157 }
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158
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159 bool islocked (void) const { return locked; }
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160
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161 virtual void lock_subfunctions (void) { }
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162
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163 virtual void unlock_subfunctions (void) { }
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164
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165 virtual void maybe_relocate_end (void) { }
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166
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167 // Not valid until after the function is completley parsed.
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168 virtual bool has_subfunctions (void) const { return false; }
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169
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170 virtual void stash_subfunction_names (const std::list<std::string>&) { }
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171
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172 virtual std::list<std::string> subfunction_names (void) const
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173 {
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174 return std::list<std::string> ();
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175 }
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176
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177 void mark_relative (void) { relative = true; }
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178
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179 bool is_relative (void) const { return relative; }
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180
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181 std::string name (void) const { return my_name; }
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182
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183 std::string canonical_name (void) const
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184 {
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185 if (xpackage_name.empty ())
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186 return my_name;
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187 else
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188 return xpackage_name + "." + my_name;
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189 }
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190
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191 void document (const std::string& ds) { doc = ds; }
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192
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193 std::string doc_string (void) const { return doc; }
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194
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195 virtual void unload (void) { }
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196
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197 virtual void accept (octave::tree_walker&) { }
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198
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199 virtual bool accepts_postfix_index (char type) const
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200 { return (type == '('); }
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201
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202 virtual octave_value_list
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203 call (octave::tree_evaluator& tw, int nargout = 0,
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204 const octave_value_list& args = octave_value_list ()) = 0;
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205
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206 protected:
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207
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208 octave_function (const std::string& nm,
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209 const std::string& ds = "")
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210 : relative (false), locked (false), private_function (false),
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211 xdispatch_class (), my_name (nm), my_dir_name (), doc (ds) { }
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212
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213 // TRUE if this function was found from a relative path element.
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214 bool relative;
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215
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216 // TRUE if this function is tagged so that it can't be cleared.
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217 bool locked;
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218
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219 // TRUE means this is a private function.
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220 bool private_function;
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221
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222 // If this object is a class method or constructor, or a private
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223 // function inside a class directory, this is the name of the class
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224 // to which the method belongs.
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225 std::string xdispatch_class;
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226
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227 // If this function is part of a package, this is the full name
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228 // of the package to which the function belongs.
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229 std::string xpackage_name;
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230
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231 // The name of this function.
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232 std::string my_name;
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233
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234 // The name of the directory in the path where we found this
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235 // function. May be relative.
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236 std::string my_dir_name;
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237
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238 // The help text for this function.
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239 std::string doc;
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240 };
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241
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242 #endif