Mercurial > octave
annotate libinterp/octave-value/ov-fcn-handle.h @ 28439:e760fef2829c stable
refactor octave_fcn_handle class
* ov-fcn-handle.h, ov-fcn-handle.cc (class octave_fcn_handle):
split octave_fcn_handle internally into separate sub-classes for the
following types of function handles: simple, scoped, nested,
classsimple, and anonymous. Update all uses.
* load-path.cc (load_path::package_info::find_private_fcn):
Don't search for private files that are not already in the private
function map.
* ls-mat5.cc (read_mat5_binary_element): Update handling of local
variables for anonymous functions.
* stack-frame.h, stack-frame.cc (stack_frame::set_closure_links,
stack_frame::dup, compiled_fcn_stack_frame::dup,
script_stack_frame::dup, user_fcn_stack_frame::dup,
scope_stack_frame::dup): Delete unnecessary functions.
* ov-fcn.h (octave_function::is_nested_function,
octave_function::is_parent_function): New virtual functions.
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 29 Apr 2020 14:10:27 -0400 |
parents | d05a4194f1ad |
children | 1be719d8b375 |
rev | line source |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 2003-2020 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 //////////////////////////////////////////////////////////////////////// |
4343 | 25 |
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26 #if ! defined (octave_ov_fcn_handle_h) |
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27 #define octave_ov_fcn_handle_h 1 |
4343 | 28 |
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29 #include "octave-config.h" |
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30 |
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31 #include <iosfwd> |
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32 #include <list> |
4343 | 33 #include <string> |
34 | |
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35 #include "oct-map.h" |
4343 | 36 #include "ov-base.h" |
37 #include "ov-fcn.h" | |
4654 | 38 #include "ov-typeinfo.h" |
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39 #include "stack-frame.h" |
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40 #include "symscope.h" |
4343 | 41 |
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42 namespace octave |
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43 { |
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44 class interpreter; |
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45 class tree_evaluator; |
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46 |
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47 // Function handles. |
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48 |
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49 class base_fcn_handle |
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50 { |
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51 public: |
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52 |
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53 base_fcn_handle (const std::string& name = "", |
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54 const std::string& file = "") |
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55 : m_name (name), m_file (file) |
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56 { } |
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57 |
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58 base_fcn_handle (const base_fcn_handle&) = default; |
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59 |
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60 virtual ~base_fcn_handle (void) = default; |
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61 |
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62 virtual base_fcn_handle * clone (void) const = 0; |
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63 |
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64 virtual std::string type (void) const = 0; |
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65 |
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66 virtual bool is_internal (void) const { return false; } |
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67 |
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68 virtual bool is_simple (void) const { return false; } |
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69 |
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70 virtual bool is_scoped (void) const { return false; } |
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71 |
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72 virtual bool is_nested (void) const { return false; } |
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73 |
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74 virtual bool is_class_simple (void) const { return false; } |
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75 |
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76 virtual bool is_anonymous (void) const { return false; } |
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77 |
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78 std::string fcn_name (void) const { return m_name; } |
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79 |
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80 std::string file (void) const { return m_file; } |
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81 |
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82 octave_value_list |
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83 subsref (const std::string& type, const std::list<octave_value_list>& idx, |
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84 int nargout); |
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85 |
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86 virtual octave_value_list |
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87 call (int nargout, const octave_value_list& args) = 0; |
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88 |
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89 // FIXME: These must go away. They don't do the right thing for |
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90 // scoping or overloads. |
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91 virtual octave_function * function_value (bool = false) |
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92 { |
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93 return nullptr; |
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94 } |
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95 |
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96 virtual octave_user_function * user_function_value (bool = false) |
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97 { |
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98 return nullptr; |
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99 } |
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100 |
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101 virtual octave_value fcn_val (void) { return octave_value (); } |
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102 |
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103 virtual octave_value workspace (void) const { return octave_value (); } |
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104 |
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105 // Should be const. |
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106 virtual octave_scalar_map info (void) { return octave_scalar_map (); } |
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107 |
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108 virtual void set_dispatch_class (const std::string& /*class_name*/) { } |
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109 |
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110 virtual std::string get_dispatch_class (void) const { return ""; } |
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111 |
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112 octave_value convert_to_str_internal (bool pad, bool force, char type) const; |
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113 |
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114 virtual bool save_ascii (std::ostream& os); |
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115 |
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116 virtual bool load_ascii (std::istream& is); |
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117 |
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118 virtual bool save_binary (std::ostream& os, bool save_as_floats); |
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119 |
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120 virtual bool load_binary (std::istream& is, bool swap, |
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121 mach_info::float_format fmt); |
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122 |
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123 virtual bool save_hdf5 (octave_hdf5_id loc_id, const char *name, |
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124 bool save_as_floats); |
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125 |
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126 virtual bool load_hdf5 (octave_hdf5_id& group_hid, |
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127 octave_hdf5_id& space_hid, |
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128 octave_hdf5_id& type_hid); |
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129 |
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130 virtual void print_raw (std::ostream&, bool /*pr_as_read_syntax*/, |
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131 int /*current_print_indent_level*/) const |
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132 { } |
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133 |
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134 // Function handles are printed without a newline by default. |
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135 virtual bool print_as_scalar (void) const { return true; } |
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136 |
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137 virtual bool |
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138 set_fcn (const std::string& /*octaveroot*/, const std::string& /*fpath*/) |
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139 { |
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140 return false; |
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141 } |
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142 |
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143 protected: |
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144 |
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145 void warn_load (const char *file_type) const; |
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146 void warn_save (const char *file_type) const; |
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147 |
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148 void unimplemented (const char *op, const char *fmt) const; |
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149 |
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150 // The name of the handle, not including the "@", or the text of the |
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151 // anonymous function. |
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152 std::string m_name; |
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153 |
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154 // The name of the file where the named function was defined. |
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155 std::string m_file; |
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156 }; |
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157 } |
4343 | 158 |
4925 | 159 class |
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160 OCTINTERP_API |
4925 | 161 octave_fcn_handle : public octave_base_value |
4654 | 162 { |
163 public: | |
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164 |
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165 static const std::string anonymous; |
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166 |
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167 // Creates an invalid function handle. Used to create generic |
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168 // function handle objects when loading function handles. Further |
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169 // dispatch happens in the octave_fcn_handle load/save functions. |
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170 octave_fcn_handle (void); |
5007 | 171 |
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172 // Create a handle to a built-in or internal function. |
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173 octave_fcn_handle (const octave_value& fcn); |
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174 |
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175 // Create a simple function handle that is not bound to a function. |
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176 // Lookup happens when a function call is attempted. |
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177 octave_fcn_handle (const std::string& name); |
4654 | 178 |
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179 // Create a simple function handle that is bound to a function. |
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180 octave_fcn_handle (const octave_value& fcn, const std::string& name); |
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181 |
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182 // Create a function handle bound to a class method. |
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183 octave_fcn_handle (const octave_value& fcn, const std::string& class_nm, |
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184 const std::string& meth_nm); |
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185 |
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186 // Create a function handle bound to a class method. |
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187 octave_fcn_handle (const octave_value& obj, const octave_value& fcn, |
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188 const std::string& class_nm, |
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189 const std::string& meth_nm); |
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190 |
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191 // Create a function handle bound to a scoped function. |
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192 octave_fcn_handle (const octave_value& fcn, const std::string& name, |
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193 const std::list<std::string>& parentage); |
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194 |
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195 // Create a handle to a nested function. |
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196 octave_fcn_handle (const octave_value& fcn, const std::string& name, |
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197 const std::shared_ptr<octave::stack_frame>& closure_frames); |
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198 |
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199 // Create an anonymous function handle with local variable values |
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200 // provided in LOCAL_VARS. |
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201 octave_fcn_handle (const octave_value& fcn, |
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202 const octave::stack_frame::local_vars_map& local_vars); |
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203 |
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204 octave_fcn_handle (const octave_fcn_handle& fh); |
4967 | 205 |
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206 ~octave_fcn_handle (void) = default; |
4654 | 207 |
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208 octave_base_value * clone (void) const |
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209 { |
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210 return new octave_fcn_handle (*this); |
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211 } |
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212 |
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213 octave_base_value * empty_clone (void) const |
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214 { |
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215 return new octave_fcn_handle (); |
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216 } |
4967 | 217 |
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218 // We don't need to override all three forms of subsref. The using |
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219 // declaration will avoid warnings about partially-overloaded virtual |
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220 // functions. |
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221 using octave_base_value::subsref; |
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222 |
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223 octave_value subsref (const std::string& type, |
10313 | 224 const std::list<octave_value_list>& idx) |
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225 { |
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226 octave_value_list tmp = subsref (type, idx, 1); |
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227 return tmp.length () > 0 ? tmp(0) : octave_value (); |
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228 } |
4924 | 229 |
230 octave_value_list subsref (const std::string& type, | |
10313 | 231 const std::list<octave_value_list>& idx, |
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232 int nargout) |
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233 { |
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234 return m_rep->subsref (type, idx, nargout); |
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235 } |
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236 |
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237 octave_value_list call (int nargout, const octave_value_list& args); |
4924 | 238 |
4925 | 239 bool is_defined (void) const { return true; } |
4654 | 240 |
241 bool is_function_handle (void) const { return true; } | |
242 | |
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243 bool is_internal (void) const { return m_rep->is_internal (); } |
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244 |
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245 bool is_simple (void) const { return m_rep->is_simple (); } |
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246 |
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247 bool is_scoped (void) const { return m_rep->is_scoped (); } |
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248 |
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249 bool is_nested (void) const { return m_rep->is_nested (); } |
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250 |
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251 bool is_class_simple (void) const { return m_rep->is_class_simple (); } |
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252 |
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253 bool is_anonymous (void) const { return m_rep->is_anonymous (); } |
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254 |
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255 dim_vector dims (void) const; |
5654 | 256 |
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257 // FIXME: These must go away. They don't do the right thing for |
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258 // scoping or overloads. |
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259 octave_function * function_value (bool = false) |
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260 { |
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261 return m_rep->function_value (); |
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262 } |
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263 |
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264 octave_user_function * user_function_value (bool = false) |
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265 { |
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266 return m_rep->user_function_value (); |
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267 } |
6625 | 268 |
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269 octave_fcn_handle * fcn_handle_value (bool = false) { return this; } |
4654 | 270 |
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271 octave_value fcn_val (void) { return m_rep->fcn_val (); } |
5007 | 272 |
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273 // FCN_NAME should be eliminated. |
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274 std::string fcn_name (void) const { return m_rep->fcn_name (); } |
4930 | 275 |
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276 octave_value workspace (void) const |
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277 { |
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278 return m_rep->workspace (); |
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279 } |
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280 |
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281 octave_scalar_map info (void) { return m_rep->info (); } |
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282 |
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283 void set_dispatch_class (const std::string& class_name) |
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284 { |
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285 m_rep->set_dispatch_class (class_name); |
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286 } |
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287 |
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288 std::string get_dispatch_class (void) const |
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289 { |
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290 return m_rep->get_dispatch_class (); |
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291 } |
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292 |
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293 octave_value convert_to_str_internal (bool pad, bool force, char type) const |
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294 { |
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295 return m_rep->convert_to_str_internal (pad, force, type); |
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296 } |
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297 |
6974 | 298 bool save_ascii (std::ostream& os); |
4988 | 299 |
300 bool load_ascii (std::istream& is); | |
301 | |
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302 bool save_binary (std::ostream& os, bool save_as_floats); |
4988 | 303 |
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304 bool load_binary (std::istream& is, bool swap, |
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305 octave::mach_info::float_format fmt); |
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307 bool save_hdf5 (octave_hdf5_id loc_id, const char *name, bool save_as_floats); |
4988 | 308 |
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309 bool load_hdf5 (octave_hdf5_id loc_id, const char *name); |
4988 | 310 |
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311 void print (std::ostream& os, bool pr_as_read_syntax = false); |
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313 void print_raw (std::ostream& os, bool pr_as_read_syntax = false) const; | |
314 | |
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315 // Simple function handles are printed without a newline. |
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316 bool print_as_scalar (void) const { return m_rep->print_as_scalar (); } |
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317 |
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318 friend bool |
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319 is_equal_to (const octave_fcn_handle& fh1, const octave_fcn_handle& fh2); |
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320 |
4654 | 321 private: |
4343 | 322 |
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323 octave::base_fcn_handle *m_rep; |
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324 |
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325 octave_fcn_handle (octave::base_fcn_handle *rep); |
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326 |
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327 octave::base_fcn_handle * get_rep (void) const { return m_rep; } |
6625 | 328 |
4612 | 329 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA |
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330 }; |
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331 |
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332 extern bool |
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333 is_equal_to (const octave_fcn_handle& fh1, const octave_fcn_handle& fh2); |
4343 | 334 |
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335 namespace octave |
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336 { |
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337 OCTAVE_DEPRECATED (6, "use 'tree_evaluator::make_fcn_handle' instead") |
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338 extern octave_value |
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339 make_fcn_handle (interpreter& interp, const std::string& name); |
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340 } |
4343 | 341 |
342 #endif |