Mercurial > octave
annotate src/ov-usr-fcn.h @ 10313:f3b65e1ae355
untabify src header files
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Thu, 11 Feb 2010 12:16:43 -0500 |
| parents | cd96d29c5efa |
| children | 9cd5aa83fa62 |
| rev | line source |
|---|---|
| 2974 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
| 8920 | 4 2005, 2006, 2007, 2008, 2009 John W. Eaton |
| 2974 | 5 |
| 6 This file is part of Octave. | |
| 7 | |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 2974 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 2974 | 21 |
| 22 */ | |
| 23 | |
| 24 #if !defined (octave_user_function_h) | |
| 25 #define octave_user_function_h 1 | |
| 26 | |
| 27 #include <ctime> | |
| 28 | |
| 29 #include <string> | |
| 4214 | 30 #include <stack> |
| 2974 | 31 |
| 3665 | 32 #include "comment-list.h" |
| 2974 | 33 #include "oct-obj.h" |
| 34 #include "ov-fcn.h" | |
| 35 #include "ov-typeinfo.h" | |
| 7336 | 36 #include "symtab.h" |
| 2974 | 37 |
| 38 class string_vector; | |
| 39 | |
| 40 class octave_value; | |
| 41 class tree_parameter_list; | |
| 42 class tree_statement_list; | |
| 43 class tree_va_return_list; | |
| 44 class tree_walker; | |
| 45 | |
|
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46 class |
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47 octave_user_code : public octave_function |
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48 { |
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49 public: |
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50 octave_user_code (void) |
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51 : octave_function () { } |
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52 |
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53 ~octave_user_code (void) { } |
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54 |
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55 bool is_user_code (void) const { return true; } |
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56 |
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57 virtual tree_statement_list *body (void) = 0; |
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58 |
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59 protected: |
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60 |
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61 octave_user_code (const std::string& nm, |
| 10313 | 62 const std::string& ds = std::string ()) |
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63 : octave_function (nm, ds) { } |
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64 |
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65 private: |
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66 |
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67 // No copying! |
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68 |
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69 octave_user_code (const octave_user_code& f); |
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70 |
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71 octave_user_code& operator = (const octave_user_code& f); |
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72 }; |
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73 |
| 5744 | 74 // Scripts. |
| 75 | |
| 76 class | |
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77 octave_user_script : public octave_user_code |
| 5744 | 78 { |
| 79 public: | |
| 80 | |
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81 octave_user_script (void); |
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82 |
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83 octave_user_script (const std::string& fnm, const std::string& nm, |
| 10313 | 84 tree_statement_list *cmds, |
| 85 const std::string& ds = std::string ()); | |
| 5744 | 86 |
| 87 octave_user_script (const std::string& fnm, const std::string& nm, | |
| 10313 | 88 const std::string& ds = std::string ()); |
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89 |
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90 ~octave_user_script (void); |
| 5744 | 91 |
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92 octave_function *function_value (bool = false) { return this; } |
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93 |
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94 octave_user_script *user_script_value (bool = false) { return this; } |
| 5744 | 95 |
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96 octave_user_code *user_code_value (bool = false) { return this; } |
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97 |
| 5744 | 98 // Scripts and user functions are both considered "scripts" because |
| 99 // they are written in Octave's scripting language. | |
| 100 | |
| 101 bool is_user_script (void) const { return true; } | |
| 102 | |
| 103 void stash_fcn_file_name (const std::string& nm) { file_name = nm; } | |
| 104 | |
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105 void mark_fcn_file_up_to_date (const octave_time& t) { t_checked = t; } |
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106 |
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107 void stash_fcn_file_time (const octave_time& t) |
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108 { |
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109 t_parsed = t; |
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110 mark_fcn_file_up_to_date (t); |
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111 } |
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112 |
| 5744 | 113 std::string fcn_file_name (void) const { return file_name; } |
| 114 | |
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115 octave_time time_parsed (void) const { return t_parsed; } |
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116 |
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117 octave_time time_checked (void) const { return t_checked; } |
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118 |
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119 octave_value subsref (const std::string& type, |
| 10313 | 120 const std::list<octave_value_list>& idx) |
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121 { |
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122 octave_value_list tmp = subsref (type, idx, 1); |
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123 return tmp.length () > 0 ? tmp(0) : octave_value (); |
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124 } |
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125 |
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126 octave_value_list subsref (const std::string& type, |
| 10313 | 127 const std::list<octave_value_list>& idx, |
| 128 int nargout); | |
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129 |
| 7336 | 130 octave_value_list |
| 131 do_multi_index_op (int nargout, const octave_value_list& args); | |
| 132 | |
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133 tree_statement_list *body (void) { return cmd_list; } |
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134 |
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135 void accept (tree_walker& tw); |
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136 |
| 5744 | 137 private: |
| 138 | |
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139 // The list of commands that make up the body of this function. |
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140 tree_statement_list *cmd_list; |
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141 |
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142 // The name of the file we parsed. |
| 5744 | 143 std::string file_name; |
| 144 | |
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145 // The time the file was parsed. |
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146 octave_time t_parsed; |
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147 |
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148 // The time the file was last checked to see if it needs to be |
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149 // parsed again. |
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150 octave_time t_checked; |
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151 |
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152 // Used to keep track of recursion depth. |
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153 int call_depth; |
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154 |
| 5744 | 155 // No copying! |
| 156 | |
| 157 octave_user_script (const octave_user_script& f); | |
| 158 | |
| 159 octave_user_script& operator = (const octave_user_script& f); | |
| 160 | |
| 161 DECLARE_OCTAVE_ALLOCATOR | |
| 162 | |
| 163 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA | |
| 164 }; | |
| 165 | |
| 166 // User-defined functions. | |
| 2974 | 167 |
| 168 class | |
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169 octave_user_function : public octave_user_code |
| 2974 | 170 { |
| 171 public: | |
| 172 | |
| 7336 | 173 octave_user_function (symbol_table::scope_id sid = -1, |
| 10313 | 174 tree_parameter_list *pl = 0, |
| 175 tree_parameter_list *rl = 0, | |
| 176 tree_statement_list *cl = 0); | |
| 2974 | 177 |
| 178 ~octave_user_function (void); | |
| 179 | |
| 4654 | 180 octave_function *function_value (bool = false) { return this; } |
| 2974 | 181 |
| 4700 | 182 octave_user_function *user_function_value (bool = false) { return this; } |
| 183 | |
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184 octave_user_code *user_code_value (bool = false) { return this; } |
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185 |
| 2974 | 186 octave_user_function *define_param_list (tree_parameter_list *t); |
| 187 | |
| 188 octave_user_function *define_ret_list (tree_parameter_list *t); | |
| 189 | |
| 4343 | 190 void stash_fcn_file_name (const std::string& nm); |
| 2974 | 191 |
| 6323 | 192 void stash_parent_fcn_name (const std::string& p) { parent_name = p; } |
| 193 | |
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194 void stash_parent_fcn_scope (symbol_table::scope_id ps) { parent_scope = ps; } |
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195 |
| 3665 | 196 void stash_leading_comment (octave_comment_list *lc) { lead_comm = lc; } |
| 197 | |
| 198 void stash_trailing_comment (octave_comment_list *tc) { trail_comm = tc; } | |
| 199 | |
| 3325 | 200 void mark_fcn_file_up_to_date (const octave_time& t) { t_checked = t; } |
| 3165 | 201 |
| 3255 | 202 void stash_fcn_file_time (const octave_time& t) |
| 3165 | 203 { |
| 204 t_parsed = t; | |
| 205 mark_fcn_file_up_to_date (t); | |
| 206 } | |
| 2974 | 207 |
| 4346 | 208 std::string fcn_file_name (void) const { return file_name; } |
| 2974 | 209 |
| 6323 | 210 std::string parent_fcn_name (void) const { return parent_name; } |
| 211 | |
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212 symbol_table::scope_id parent_fcn_scope (void) const { return parent_scope; } |
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213 |
| 7336 | 214 symbol_table::scope_id scope (void) { return local_scope; } |
| 215 | |
| 4346 | 216 octave_time time_parsed (void) const { return t_parsed; } |
| 2974 | 217 |
| 4346 | 218 octave_time time_checked (void) const { return t_checked; } |
| 3165 | 219 |
| 2974 | 220 void mark_as_system_fcn_file (void); |
| 221 | |
| 4346 | 222 bool is_system_fcn_file (void) const { return system_fcn_file; } |
| 2974 | 223 |
| 4748 | 224 bool is_user_function (void) const { return true; } |
| 225 | |
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226 void erase_subfunctions (void) |
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227 { |
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228 symbol_table::erase_subfunctions_in_scope (local_scope); |
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229 } |
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230 |
| 2974 | 231 bool takes_varargs (void) const; |
| 232 | |
| 5848 | 233 bool takes_var_return (void) const; |
| 2974 | 234 |
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235 void lock_subfunctions (void); |
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236 |
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237 void unlock_subfunctions (void); |
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238 |
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239 octave_value_list all_va_args (const octave_value_list& args); |
| 2974 | 240 |
| 4748 | 241 void stash_function_name (const std::string& s) { my_name = s; } |
| 2974 | 242 |
| 4238 | 243 void mark_as_nested_function (void) { nested_function = true; } |
| 244 | |
| 245 bool is_nested_function (void) const { return nested_function; } | |
| 246 | |
| 6149 | 247 void mark_as_inline_function (void) { inline_function = true; } |
| 248 | |
| 249 bool is_inline_function (void) const { return inline_function; } | |
| 250 | |
| 7336 | 251 void mark_as_class_constructor (void) { class_constructor = true; } |
| 252 | |
| 253 bool is_class_constructor (void) const { return class_constructor; } | |
| 254 | |
| 255 void mark_as_class_method (void) { class_method = true; } | |
| 256 | |
| 257 bool is_class_method (void) const { return class_method; } | |
| 258 | |
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259 octave_value subsref (const std::string& type, |
| 10313 | 260 const std::list<octave_value_list>& idx) |
| 4271 | 261 { |
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262 octave_value_list tmp = subsref (type, idx, 1); |
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263 return tmp.length () > 0 ? tmp(0) : octave_value (); |
| 4271 | 264 } |
| 265 | |
| 4247 | 266 octave_value_list subsref (const std::string& type, |
| 10313 | 267 const std::list<octave_value_list>& idx, |
| 268 int nargout); | |
| 3933 | 269 |
| 3544 | 270 octave_value_list |
| 271 do_multi_index_op (int nargout, const octave_value_list& args); | |
| 2974 | 272 |
| 273 tree_parameter_list *parameter_list (void) { return param_list; } | |
| 274 | |
| 275 tree_parameter_list *return_list (void) { return ret_list; } | |
| 276 | |
| 277 tree_statement_list *body (void) { return cmd_list; } | |
| 278 | |
| 3665 | 279 octave_comment_list *leading_comment (void) { return lead_comm; } |
| 280 | |
| 281 octave_comment_list *trailing_comment (void) { return trail_comm; } | |
| 282 | |
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283 bool subsasgn_optimization_ok (void); |
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284 |
| 2974 | 285 void accept (tree_walker& tw); |
| 286 | |
| 7336 | 287 #if 0 |
| 3933 | 288 void print_symtab_info (std::ostream& os) const; |
| 7336 | 289 #endif |
| 3933 | 290 |
| 2974 | 291 private: |
| 292 | |
| 293 // List of arguments for this function. These are local variables. | |
| 294 tree_parameter_list *param_list; | |
| 295 | |
| 296 // List of parameters we return. These are also local variables in | |
| 297 // this function. | |
| 298 tree_parameter_list *ret_list; | |
| 299 | |
| 300 // The list of commands that make up the body of this function. | |
| 301 tree_statement_list *cmd_list; | |
| 302 | |
| 3665 | 303 // The comments preceding the FUNCTION token. |
| 304 octave_comment_list *lead_comm; | |
| 305 | |
| 306 // The comments preceding the ENDFUNCTION token. | |
| 307 octave_comment_list *trail_comm; | |
| 308 | |
| 6323 | 309 // The name of the file we parsed. |
| 3523 | 310 std::string file_name; |
| 2974 | 311 |
| 6323 | 312 // The name of the parent function, if any. |
| 313 std::string parent_name; | |
| 314 | |
| 2974 | 315 // The time the file was parsed. |
| 3255 | 316 octave_time t_parsed; |
| 2974 | 317 |
| 3165 | 318 // The time the file was last checked to see if it needs to be |
| 319 // parsed again. | |
| 3255 | 320 octave_time t_checked; |
| 3165 | 321 |
| 2974 | 322 // True if this function came from a file that is considered to be a |
| 323 // system function. This affects whether we check the time stamp | |
| 324 // on the file to see if it has changed. | |
| 325 bool system_fcn_file; | |
| 326 | |
| 327 // Used to keep track of recursion depth. | |
| 328 int call_depth; | |
| 329 | |
| 330 // The number of arguments that have names. | |
| 331 int num_named_args; | |
| 332 | |
| 4238 | 333 // TRUE means this is a nested function. |
| 334 bool nested_function; | |
| 335 | |
| 6149 | 336 // TRUE means this is an inline function. |
| 337 bool inline_function; | |
| 338 | |
| 7336 | 339 // TRUE means this function is the constructor for class object. |
| 340 bool class_constructor; | |
| 341 | |
| 342 // TRUE means this function is a method for a class. | |
| 343 bool class_method; | |
| 344 | |
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345 // The scope of the parent function, if any. |
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346 symbol_table::scope_id parent_scope; |
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347 |
| 7336 | 348 symbol_table::scope_id local_scope; |
| 2974 | 349 |
| 7336 | 350 #if 0 |
| 2974 | 351 // The symbol record for argn in the local symbol table. |
| 7336 | 352 octave_value& argn_varref; |
| 2974 | 353 |
| 354 // The symbol record for nargin in the local symbol table. | |
| 7336 | 355 octave_value& nargin_varref; |
| 2974 | 356 |
| 357 // The symbol record for nargout in the local symbol table. | |
| 7336 | 358 octave_value& nargout_varref; |
| 2974 | 359 |
| 3974 | 360 // The symbol record for varargin in the local symbol table. |
| 7336 | 361 octave_value& varargin_varref; |
| 362 #endif | |
| 3974 | 363 |
| 2974 | 364 void print_code_function_header (void); |
| 365 | |
| 366 void print_code_function_trailer (void); | |
| 367 | |
| 368 void bind_automatic_vars (const string_vector& arg_names, int nargin, | |
| 10313 | 369 int nargout, const octave_value_list& va_args); |
| 3219 | 370 |
| 4645 | 371 // No copying! |
| 372 | |
| 373 octave_user_function (const octave_user_function& fn); | |
| 374 | |
| 375 octave_user_function& operator = (const octave_user_function& fn); | |
| 376 | |
| 4612 | 377 DECLARE_OCTAVE_ALLOCATOR |
| 3219 | 378 |
| 4612 | 379 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA |
| 2974 | 380 }; |
| 381 | |
| 382 #endif |