Mercurial > hg > octave-lyh
annotate src/ov-fcn-handle.cc @ 8019:0ef13e15319b
replace NPOS with std::string::npos
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Thu, 07 Aug 2008 15:15:33 -0400 |
| parents | a2ab20ba78f7 |
| children | 85184151822e |
| rev | line source |
|---|---|
| 4343 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 2003, 2004, 2005, 2006, 2007 John W. Eaton |
| 4343 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 4343 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 4343 | 20 |
| 21 */ | |
| 22 | |
| 23 #ifdef HAVE_CONFIG_H | |
| 24 #include <config.h> | |
| 25 #endif | |
| 26 | |
| 27 #include <iostream> | |
| 5765 | 28 #include <sstream> |
| 5164 | 29 #include <vector> |
| 4343 | 30 |
| 7336 | 31 #include "file-ops.h" |
| 32 | |
| 4343 | 33 #include "defun.h" |
| 4654 | 34 #include "error.h" |
| 35 #include "gripes.h" | |
| 5663 | 36 #include "input.h" |
| 4343 | 37 #include "oct-map.h" |
| 38 #include "ov-base.h" | |
| 39 #include "ov-fcn-handle.h" | |
| 4980 | 40 #include "ov-usr-fcn.h" |
| 4343 | 41 #include "pr-output.h" |
| 4980 | 42 #include "pt-pr-code.h" |
| 43 #include "pt-misc.h" | |
| 44 #include "pt-stmt.h" | |
| 45 #include "pt-cmd.h" | |
| 46 #include "pt-exp.h" | |
| 47 #include "pt-assign.h" | |
| 4343 | 48 #include "variables.h" |
| 4988 | 49 #include "parse.h" |
| 6625 | 50 #include "unwind-prot.h" |
| 51 #include "defaults.h" | |
| 52 #include "file-stat.h" | |
| 53 #include "load-path.h" | |
| 54 #include "oct-env.h" | |
| 4988 | 55 |
| 56 #include "byte-swap.h" | |
| 57 #include "ls-oct-ascii.h" | |
| 6625 | 58 #include "ls-oct-binary.h" |
| 4988 | 59 #include "ls-hdf5.h" |
| 60 #include "ls-utils.h" | |
| 4343 | 61 |
| 62 DEFINE_OCTAVE_ALLOCATOR (octave_fcn_handle); | |
| 63 | |
| 4612 | 64 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_fcn_handle, |
| 65 "function handle", | |
| 5946 | 66 "function_handle"); |
| 4343 | 67 |
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68 octave_fcn_handle::octave_fcn_handle (const octave_value& f, |
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69 const std::string& n) |
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70 : warn_reload (true), fcn (f), nm (n) |
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71 { |
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72 octave_user_function *uf = fcn.user_function_value (true); |
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73 |
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74 if (uf) |
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75 symbol_table::cache_name (uf->scope (), nm); |
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76 } |
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77 |
| 4924 | 78 octave_value_list |
| 79 octave_fcn_handle::subsref (const std::string& type, | |
| 80 const std::list<octave_value_list>& idx, | |
| 81 int nargout) | |
| 82 { | |
| 83 octave_value_list retval; | |
| 84 | |
| 85 switch (type[0]) | |
| 86 { | |
| 87 case '(': | |
| 88 { | |
| 7336 | 89 out_of_date_check (fcn); |
| 5663 | 90 |
| 7336 | 91 if (fcn.is_defined ()) |
| 92 { | |
| 93 octave_function *f = function_value (); | |
| 5663 | 94 |
| 7336 | 95 if (f) |
| 96 retval = f->subsref (type, idx, nargout); | |
| 5663 | 97 else |
| 7336 | 98 error ("invalid function handle"); |
| 5663 | 99 } |
| 5312 | 100 else |
| 101 error ("invalid function handle"); | |
| 4924 | 102 } |
| 103 break; | |
| 104 | |
| 105 case '{': | |
| 106 case '.': | |
| 107 { | |
| 4930 | 108 std::string typ_nm = type_name (); |
| 109 error ("%s cannot be indexed with %c", typ_nm.c_str (), type[0]); | |
| 4924 | 110 } |
| 111 break; | |
| 112 | |
| 113 default: | |
| 114 panic_impossible (); | |
| 115 } | |
| 116 | |
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117 // There's no need to call next_subsref here -- |
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118 // octave_function::subsref will handle that for us. |
| 4924 | 119 |
| 120 return retval; | |
| 121 } | |
| 122 | |
| 4988 | 123 bool |
| 6625 | 124 octave_fcn_handle::set_fcn (const std::string &octaveroot, |
| 125 const std::string& fpath) | |
| 4988 | 126 { |
| 6625 | 127 bool success = true; |
| 128 | |
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129 if (octaveroot.length () != 0 |
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130 && fpath.length () >= octaveroot.length () |
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131 && fpath.substr (0, octaveroot.length ()) == octaveroot |
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132 && OCTAVE_EXEC_PREFIX != octaveroot) |
| 6625 | 133 { |
| 134 // First check if just replacing matlabroot is enough | |
| 135 std::string str = OCTAVE_EXEC_PREFIX + | |
| 136 fpath.substr (octaveroot.length ()); | |
| 137 file_stat fs (str); | |
| 138 | |
| 139 if (fs.exists ()) | |
| 140 { | |
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141 size_t xpos = str.find_last_of (file_ops::dir_sep_chars ()); |
| 6625 | 142 |
| 7336 | 143 std::string dir_name = str.substr (0, xpos); |
| 6625 | 144 |
| 7336 | 145 octave_function *xfcn |
| 146 = load_fcn_from_file (str, dir_name, "", nm); | |
| 6625 | 147 |
| 7336 | 148 if (xfcn) |
| 149 { | |
| 150 octave_value tmp (xfcn); | |
| 6625 | 151 |
| 7336 | 152 fcn = octave_value (new octave_fcn_handle (tmp, nm)); |
| 6625 | 153 } |
| 154 else | |
| 155 { | |
| 156 error ("function handle points to non-existent function"); | |
| 157 success = false; | |
| 158 } | |
| 159 } | |
| 160 else | |
| 161 { | |
| 162 // Next just search for it anywhere in the system path | |
| 163 string_vector names(3); | |
| 164 names(0) = nm + ".oct"; | |
| 165 names(1) = nm + ".mex"; | |
| 166 names(2) = nm + ".m"; | |
| 167 | |
| 6626 | 168 dir_path p (load_path::system_path ()); |
| 6625 | 169 |
| 170 str = octave_env::make_absolute | |
| 171 (p.find_first_of (names), octave_env::getcwd ()); | |
| 172 | |
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173 size_t xpos = str.find_last_of (file_ops::dir_sep_chars ()); |
| 6625 | 174 |
| 7336 | 175 std::string dir_name = str.substr (0, xpos); |
| 176 | |
| 177 octave_function *xfcn = load_fcn_from_file (str, dir_name, "", nm); | |
| 4989 | 178 |
| 7336 | 179 if (xfcn) |
| 180 { | |
| 181 octave_value tmp (xfcn); | |
| 6625 | 182 |
| 7336 | 183 fcn = octave_value (new octave_fcn_handle (tmp, nm)); |
| 6625 | 184 } |
| 185 else | |
| 186 { | |
| 187 error ("function handle points to non-existent function"); | |
| 188 success = false; | |
| 189 } | |
| 190 } | |
| 191 } | |
| 192 else | |
| 193 { | |
| 194 if (fpath.length () > 0) | |
| 195 { | |
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196 size_t xpos = fpath.find_last_of (file_ops::dir_sep_chars ()); |
| 6625 | 197 |
| 7336 | 198 std::string dir_name = fpath.substr (0, xpos); |
| 199 | |
| 200 octave_function *xfcn = load_fcn_from_file (fpath, dir_name, "", nm); | |
| 6625 | 201 |
| 7336 | 202 if (xfcn) |
| 203 { | |
| 204 octave_value tmp (xfcn); | |
| 6625 | 205 |
| 7336 | 206 fcn = octave_value (new octave_fcn_handle (tmp, nm)); |
| 6625 | 207 } |
| 208 else | |
| 209 { | |
| 210 error ("function handle points to non-existent function"); | |
| 211 success = false; | |
| 212 } | |
| 213 } | |
| 214 else | |
| 215 { | |
| 7336 | 216 fcn = symbol_table::find_function (nm); |
| 217 | |
| 6625 | 218 if (! fcn.is_function ()) |
| 219 { | |
| 220 error ("function handle points to non-existent function"); | |
| 221 success = false; | |
| 222 } | |
| 223 } | |
| 224 } | |
| 225 | |
| 226 return success; | |
| 227 } | |
| 228 | |
| 229 bool | |
| 6974 | 230 octave_fcn_handle::save_ascii (std::ostream& os) |
| 6625 | 231 { |
| 4988 | 232 if (nm == "@<anonymous>") |
| 233 { | |
| 6625 | 234 os << nm << "\n"; |
| 235 | |
| 4989 | 236 print_raw (os, true); |
| 237 os << "\n"; | |
| 6625 | 238 |
| 7336 | 239 if (fcn.is_undefined ()) |
| 6625 | 240 return false; |
| 241 | |
| 242 octave_user_function *f = fcn.user_function_value (); | |
| 243 | |
| 7336 | 244 std::list<symbol_table::symbol_record> vars |
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245 = symbol_table::all_variables (f->scope (), 0); |
| 6625 | 246 |
| 7336 | 247 size_t varlen = vars.size (); |
| 6625 | 248 |
| 249 if (varlen > 0) | |
| 250 { | |
| 251 os << "# length: " << varlen << "\n"; | |
| 252 | |
| 7336 | 253 for (std::list<symbol_table::symbol_record>::const_iterator p = vars.begin (); |
| 254 p != vars.end (); p++) | |
| 6625 | 255 { |
| 7336 | 256 if (! save_ascii_data (os, p->varval (), p->name (), false, 0)) |
| 6625 | 257 return os; |
| 258 } | |
| 259 } | |
| 260 } | |
| 261 else | |
| 262 { | |
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263 octave_function *f = function_value (); |
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264 std::string fnm = f ? f->fcn_file_name () : std::string (); |
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265 |
| 6625 | 266 os << "# octaveroot: " << OCTAVE_EXEC_PREFIX << "\n"; |
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267 if (! fnm.empty ()) |
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268 os << "# path: " << fnm << "\n"; |
| 6625 | 269 os << nm << "\n"; |
| 4988 | 270 } |
| 271 | |
| 272 return true; | |
| 273 } | |
| 274 | |
| 275 bool | |
| 276 octave_fcn_handle::load_ascii (std::istream& is) | |
| 277 { | |
| 6625 | 278 bool success = true; |
| 279 | |
| 280 std::streampos pos = is.tellg (); | |
| 281 std::string octaveroot = extract_keyword (is, "octaveroot", true); | |
| 282 if (octaveroot.length() == 0) | |
| 283 { | |
| 284 is.seekg (pos); | |
| 285 is.clear (); | |
| 286 } | |
| 287 pos = is.tellg (); | |
| 288 std::string fpath = extract_keyword (is, "path", true); | |
| 289 if (fpath.length() == 0) | |
| 290 { | |
| 291 is.seekg (pos); | |
| 292 is.clear (); | |
| 293 } | |
| 294 | |
| 4988 | 295 is >> nm; |
| 4989 | 296 |
| 4988 | 297 if (nm == "@<anonymous>") |
| 298 { | |
| 6625 | 299 octave_idx_type len = 0; |
| 4988 | 300 char c; |
| 5765 | 301 std::ostringstream buf; |
| 4988 | 302 |
| 4989 | 303 // Skip preceeding newline(s). |
| 304 while (is.get (c) && c == '\n') | |
| 305 /* do nothing */; | |
| 4988 | 306 |
| 307 if (is) | |
| 308 { | |
| 309 buf << c; | |
| 310 | |
| 311 // Get a line of text whitespace characters included, leaving | |
| 4989 | 312 // newline in the stream. |
| 313 | |
| 4988 | 314 while (is.peek () != '\n') |
| 315 { | |
| 316 is.get (c); | |
| 317 if (! is) | |
| 318 break; | |
| 319 buf << c; | |
| 320 } | |
| 321 } | |
| 322 | |
| 6625 | 323 pos = is.tellg (); |
| 7336 | 324 |
| 325 symbol_table::scope_id local_scope = symbol_table::alloc_scope (); | |
| 4988 | 326 |
| 6625 | 327 if (extract_keyword (is, "length", len, true) && len >= 0) |
| 4989 | 328 { |
| 6625 | 329 if (len > 0) |
| 330 { | |
| 331 for (octave_idx_type i = 0; i < len; i++) | |
| 332 { | |
| 333 octave_value t2; | |
| 334 bool dummy; | |
| 335 | |
| 336 std::string name | |
| 337 = read_ascii_data (is, std::string (), dummy, t2, i); | |
| 338 | |
| 339 if (!is) | |
| 340 { | |
| 341 error ("load: failed to load anonymous function handle"); | |
| 342 break; | |
| 343 } | |
| 344 | |
| 7901 | 345 symbol_table::varref (name, local_scope, 0) = t2; |
| 6625 | 346 } |
| 347 } | |
| 4989 | 348 } |
| 349 else | |
| 6625 | 350 { |
| 351 is.seekg (pos); | |
| 352 is.clear (); | |
| 353 } | |
| 354 | |
| 355 if (is && success) | |
| 356 { | |
| 357 unwind_protect::begin_frame ("anon_ascii_load"); | |
| 358 | |
| 7336 | 359 symbol_table::push_scope (local_scope); |
| 360 | |
| 361 unwind_protect::add (symbol_table::pop_scope); | |
| 6625 | 362 |
| 363 int parse_status; | |
| 364 octave_value anon_fcn_handle = | |
| 365 eval_string (buf.str (), true, parse_status); | |
| 366 | |
| 367 if (parse_status == 0) | |
| 368 { | |
| 369 octave_fcn_handle *fh = | |
| 370 anon_fcn_handle.fcn_handle_value (); | |
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371 |
| 6625 | 372 if (fh) |
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373 { |
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374 fcn = fh->fcn; |
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375 |
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376 octave_user_function *uf = fcn.user_function_value (true); |
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377 |
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378 if (uf) |
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379 symbol_table::cache_name (uf->scope (), nm); |
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380 } |
| 6625 | 381 else |
| 382 success = false; | |
| 383 } | |
| 384 else | |
| 385 success = false; | |
| 386 | |
| 387 unwind_protect::run_frame ("anon_ascii_load"); | |
| 388 } | |
| 389 else | |
| 390 success = false; | |
| 391 | |
| 7336 | 392 symbol_table::erase_scope (local_scope); |
| 4988 | 393 } |
| 394 else | |
| 6625 | 395 success = set_fcn (octaveroot, fpath); |
| 4988 | 396 |
| 6625 | 397 return success; |
| 4988 | 398 } |
| 399 | |
| 400 bool | |
| 6625 | 401 octave_fcn_handle::save_binary (std::ostream& os, bool& save_as_floats) |
| 4988 | 402 { |
| 403 if (nm == "@<anonymous>") | |
| 404 { | |
| 6625 | 405 std::ostringstream nmbuf; |
| 406 | |
| 7336 | 407 if (fcn.is_undefined ()) |
| 6625 | 408 return false; |
| 409 | |
| 410 octave_user_function *f = fcn.user_function_value (); | |
| 411 | |
| 7336 | 412 std::list<symbol_table::symbol_record> vars |
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413 = symbol_table::all_variables (f->scope (), 0); |
| 6625 | 414 |
| 7336 | 415 size_t varlen = vars.size (); |
| 6625 | 416 |
| 417 if (varlen > 0) | |
| 418 nmbuf << nm << " " << varlen; | |
| 419 else | |
| 420 nmbuf << nm; | |
| 421 | |
| 422 std::string buf_str = nmbuf.str(); | |
| 423 int32_t tmp = buf_str.length (); | |
| 424 os.write (reinterpret_cast<char *> (&tmp), 4); | |
| 425 os.write (buf_str.c_str (), buf_str.length ()); | |
| 426 | |
| 5765 | 427 std::ostringstream buf; |
| 4988 | 428 print_raw (buf, true); |
| 5765 | 429 std::string stmp = buf.str (); |
| 4988 | 430 tmp = stmp.length (); |
| 5760 | 431 os.write (reinterpret_cast<char *> (&tmp), 4); |
| 4988 | 432 os.write (stmp.c_str (), stmp.length ()); |
| 6625 | 433 |
| 434 if (varlen > 0) | |
| 435 { | |
| 7336 | 436 for (std::list<symbol_table::symbol_record>::const_iterator p = vars.begin (); |
| 437 p != vars.end (); p++) | |
| 6625 | 438 { |
| 7336 | 439 if (! save_binary_data (os, p->varval (), p->name (), |
| 6625 | 440 "", 0, save_as_floats)) |
| 441 return os; | |
| 442 } | |
| 443 } | |
| 444 } | |
| 445 else | |
| 446 { | |
| 447 std::ostringstream nmbuf; | |
| 448 | |
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449 octave_function *f = function_value (); |
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450 std::string fnm = f ? f->fcn_file_name () : std::string (); |
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451 |
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452 nmbuf << nm << "\n" << OCTAVE_EXEC_PREFIX << "\n" << fnm; |
| 6625 | 453 |
| 454 std::string buf_str = nmbuf.str (); | |
| 455 int32_t tmp = buf_str.length (); | |
| 456 os.write (reinterpret_cast<char *> (&tmp), 4); | |
| 457 os.write (buf_str.c_str (), buf_str.length ()); | |
| 4988 | 458 } |
| 7336 | 459 |
| 4988 | 460 return true; |
| 461 } | |
| 462 | |
| 463 bool | |
| 464 octave_fcn_handle::load_binary (std::istream& is, bool swap, | |
| 6625 | 465 oct_mach_info::float_format fmt) |
| 4988 | 466 { |
| 6625 | 467 bool success = true; |
| 7336 | 468 |
| 5828 | 469 int32_t tmp; |
| 5760 | 470 if (! is.read (reinterpret_cast<char *> (&tmp), 4)) |
| 4988 | 471 return false; |
| 472 if (swap) | |
| 473 swap_bytes<4> (&tmp); | |
| 474 | |
| 475 OCTAVE_LOCAL_BUFFER (char, ctmp1, tmp+1); | |
| 476 is.read (ctmp1, tmp); | |
| 477 nm = std::string (ctmp1); | |
| 478 | |
| 479 if (! is) | |
| 480 return false; | |
| 481 | |
| 6625 | 482 if (nm.length() >= 12 && nm.substr (0, 12) == "@<anonymous>") |
| 4988 | 483 { |
| 6625 | 484 octave_idx_type len = 0; |
| 485 | |
| 486 if (nm.length() > 12) | |
| 487 { | |
| 488 std::istringstream nm_is (nm.substr(12)); | |
| 489 nm_is >> len; | |
| 490 nm = nm.substr(0,12); | |
| 491 } | |
| 492 | |
| 5760 | 493 if (! is.read (reinterpret_cast<char *> (&tmp), 4)) |
| 4988 | 494 return false; |
| 495 if (swap) | |
| 496 swap_bytes<4> (&tmp); | |
| 497 | |
| 498 OCTAVE_LOCAL_BUFFER (char, ctmp2, tmp+1); | |
| 499 is.read (ctmp2, tmp); | |
| 500 | |
| 7336 | 501 symbol_table::scope_id local_scope = symbol_table::alloc_scope (); |
| 502 | |
| 6625 | 503 if (len > 0) |
| 4989 | 504 { |
| 6625 | 505 for (octave_idx_type i = 0; i < len; i++) |
| 506 { | |
| 507 octave_value t2; | |
| 508 bool dummy; | |
| 509 std::string doc; | |
| 510 | |
| 511 std::string name = | |
| 512 read_binary_data (is, swap, fmt, std::string (), | |
| 513 dummy, t2, doc); | |
| 514 | |
| 515 if (!is) | |
| 516 { | |
| 517 error ("load: failed to load anonymous function handle"); | |
| 518 break; | |
| 519 } | |
| 520 | |
| 7336 | 521 symbol_table::varref (name, local_scope) = t2; |
| 6625 | 522 } |
| 523 } | |
| 524 | |
| 525 if (is && success) | |
| 526 { | |
| 527 unwind_protect::begin_frame ("anon_binary_load"); | |
| 528 | |
| 7336 | 529 symbol_table::push_scope (local_scope); |
| 530 | |
| 531 unwind_protect::add (symbol_table::pop_scope); | |
| 6625 | 532 |
| 533 int parse_status; | |
| 534 octave_value anon_fcn_handle = | |
| 535 eval_string (ctmp2, true, parse_status); | |
| 536 | |
| 537 if (parse_status == 0) | |
| 538 { | |
| 539 octave_fcn_handle *fh = anon_fcn_handle.fcn_handle_value (); | |
|
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540 |
| 6625 | 541 if (fh) |
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542 { |
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543 fcn = fh->fcn; |
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544 |
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545 octave_user_function *uf = fcn.user_function_value (true); |
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546 |
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547 if (uf) |
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548 symbol_table::cache_name (uf->scope (), nm); |
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549 } |
| 6625 | 550 else |
| 551 success = false; | |
| 552 } | |
| 4989 | 553 else |
| 6625 | 554 success = false; |
| 555 | |
| 556 unwind_protect::run_frame ("anon_binary_load"); | |
| 4989 | 557 } |
| 6625 | 558 |
| 7336 | 559 symbol_table::erase_scope (local_scope); |
| 4988 | 560 } |
| 561 else | |
| 562 { | |
| 6625 | 563 std::string octaveroot; |
| 564 std::string fpath; | |
| 565 | |
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566 if (nm.find_first_of ("\n") != std::string:npos) |
| 6225 | 567 { |
| 6625 | 568 size_t pos1 = nm.find_first_of ("\n"); |
| 569 size_t pos2 = nm.find_first_of ("\n", pos1 + 1); | |
| 570 octaveroot = nm.substr (pos1 + 1, pos2 - pos1 - 1); | |
| 571 fpath = nm.substr (pos2 + 1); | |
| 572 nm = nm.substr (0, pos1); | |
| 6225 | 573 } |
| 6625 | 574 |
| 575 success = set_fcn (octaveroot, fpath); | |
| 576 } | |
| 577 | |
| 578 return success; | |
| 4988 | 579 } |
| 580 | |
| 581 #if defined (HAVE_HDF5) | |
| 582 bool | |
| 583 octave_fcn_handle::save_hdf5 (hid_t loc_id, const char *name, | |
| 6625 | 584 bool save_as_floats) |
| 4988 | 585 { |
| 7336 | 586 bool retval = true; |
| 587 | |
| 4988 | 588 hid_t group_hid = -1; |
| 589 group_hid = H5Gcreate (loc_id, name, 0); | |
| 7336 | 590 if (group_hid < 0) |
| 591 return false; | |
| 4988 | 592 |
| 593 hid_t space_hid = -1, data_hid = -1, type_hid = -1;; | |
| 594 | |
| 595 // attach the type of the variable | |
| 596 type_hid = H5Tcopy (H5T_C_S1); | |
| 597 H5Tset_size (type_hid, nm.length () + 1); | |
| 598 if (type_hid < 0) | |
| 599 { | |
| 600 H5Gclose (group_hid); | |
| 601 return false; | |
| 602 } | |
| 603 | |
| 604 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, 2); | |
| 605 hdims[0] = 0; | |
| 606 hdims[1] = 0; | |
| 5760 | 607 space_hid = H5Screate_simple (0 , hdims, 0); |
| 4988 | 608 if (space_hid < 0) |
| 609 { | |
| 610 H5Tclose (type_hid); | |
| 611 H5Gclose (group_hid); | |
| 612 return false; | |
| 613 } | |
| 614 | |
| 615 data_hid = H5Dcreate (group_hid, "nm", type_hid, space_hid, H5P_DEFAULT); | |
| 616 if (data_hid < 0 || H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, | |
| 5760 | 617 H5P_DEFAULT, nm.c_str ()) < 0) |
| 4988 | 618 { |
| 619 H5Sclose (space_hid); | |
| 620 H5Tclose (type_hid); | |
| 621 H5Gclose (group_hid); | |
| 622 return false; | |
| 623 } | |
| 624 H5Dclose (data_hid); | |
| 625 | |
| 626 if (nm == "@<anonymous>") | |
| 627 { | |
| 5765 | 628 std::ostringstream buf; |
| 4988 | 629 print_raw (buf, true); |
| 5765 | 630 std::string stmp = buf.str (); |
| 4988 | 631 |
| 632 // attach the type of the variable | |
| 633 H5Tset_size (type_hid, stmp.length () + 1); | |
| 634 if (type_hid < 0) | |
| 635 { | |
| 6695 | 636 H5Sclose (space_hid); |
| 4988 | 637 H5Gclose (group_hid); |
| 638 return false; | |
| 639 } | |
| 640 | |
| 641 data_hid = H5Dcreate (group_hid, "fcn", type_hid, space_hid, | |
| 642 H5P_DEFAULT); | |
| 643 if (data_hid < 0 || H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, | |
| 5760 | 644 H5P_DEFAULT, stmp.c_str ()) < 0) |
| 4988 | 645 { |
| 646 H5Sclose (space_hid); | |
| 647 H5Tclose (type_hid); | |
| 648 H5Gclose (group_hid); | |
| 649 return false; | |
| 650 } | |
| 651 | |
| 652 H5Dclose (data_hid); | |
| 6625 | 653 |
| 654 octave_user_function *f = fcn.user_function_value (); | |
| 655 | |
| 7336 | 656 std::list<symbol_table::symbol_record> vars |
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|
657 = symbol_table::all_variables (f->scope (), 0); |
| 7336 | 658 |
| 659 size_t varlen = vars.size (); | |
| 6625 | 660 |
| 661 if (varlen > 0) | |
| 662 { | |
| 663 hid_t as_id = H5Screate (H5S_SCALAR); | |
| 664 | |
| 665 if (as_id >= 0) | |
| 666 { | |
| 667 hid_t a_id = H5Acreate (group_hid, "SYMBOL_TABLE", | |
| 668 H5T_NATIVE_IDX, as_id, H5P_DEFAULT); | |
| 669 | |
| 670 if (a_id >= 0) | |
| 671 { | |
| 672 retval = (H5Awrite (a_id, H5T_NATIVE_IDX, &varlen) >= 0); | |
| 673 | |
| 674 H5Aclose (a_id); | |
| 675 } | |
| 676 else | |
| 677 retval = false; | |
| 678 | |
| 679 H5Sclose (as_id); | |
| 680 } | |
| 681 else | |
| 682 retval = false; | |
| 683 | |
| 684 data_hid = H5Gcreate (group_hid, "symbol table", 0); | |
| 685 if (data_hid < 0) | |
| 686 { | |
| 687 H5Sclose (space_hid); | |
| 688 H5Tclose (type_hid); | |
| 689 H5Gclose (group_hid); | |
| 690 return false; | |
| 691 } | |
| 692 | |
| 7336 | 693 for (std::list<symbol_table::symbol_record>::const_iterator p = vars.begin (); |
| 694 p != vars.end (); p++) | |
| 6625 | 695 { |
| 7336 | 696 if (! add_hdf5_data (data_hid, p->varval (), p->name (), |
| 6625 | 697 "", false, save_as_floats)) |
| 698 break; | |
| 699 } | |
| 700 H5Gclose (data_hid); | |
| 701 } | |
| 702 } | |
| 703 else | |
| 704 { | |
| 705 std::string octaveroot = OCTAVE_EXEC_PREFIX; | |
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706 |
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|
707 octave_function *f = function_value (); |
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708 std::string fpath = f ? f->fcn_file_name () : std::string (); |
| 6625 | 709 |
| 710 H5Sclose (space_hid); | |
| 711 hdims[0] = 1; | |
| 712 hdims[1] = octaveroot.length (); | |
| 713 space_hid = H5Screate_simple (0 , hdims, 0); | |
| 714 if (space_hid < 0) | |
| 715 { | |
| 716 H5Tclose (type_hid); | |
| 717 H5Gclose (group_hid); | |
| 718 return false; | |
| 719 } | |
| 720 | |
| 721 H5Tclose (type_hid); | |
| 722 type_hid = H5Tcopy (H5T_C_S1); | |
| 723 H5Tset_size (type_hid, octaveroot.length () + 1); | |
| 724 | |
| 725 hid_t a_id = H5Acreate (group_hid, "OCTAVEROOT", | |
| 726 type_hid, space_hid, H5P_DEFAULT); | |
| 727 | |
| 728 if (a_id >= 0) | |
| 729 { | |
| 730 retval = (H5Awrite (a_id, type_hid, octaveroot.c_str ()) >= 0); | |
| 731 | |
| 732 H5Aclose (a_id); | |
| 733 } | |
| 734 else | |
| 6695 | 735 { |
| 736 H5Sclose (space_hid); | |
| 737 H5Tclose (type_hid); | |
| 738 H5Gclose (group_hid); | |
| 739 return false; | |
| 740 } | |
| 6625 | 741 |
| 742 H5Sclose (space_hid); | |
| 743 hdims[0] = 1; | |
| 744 hdims[1] = fpath.length (); | |
| 745 space_hid = H5Screate_simple (0 , hdims, 0); | |
| 746 if (space_hid < 0) | |
| 747 { | |
| 748 H5Tclose (type_hid); | |
| 749 H5Gclose (group_hid); | |
| 750 return false; | |
| 751 } | |
| 752 | |
| 753 H5Tclose (type_hid); | |
| 754 type_hid = H5Tcopy (H5T_C_S1); | |
| 755 H5Tset_size (type_hid, fpath.length () + 1); | |
| 756 | |
| 757 a_id = H5Acreate (group_hid, "FILE", type_hid, space_hid, H5P_DEFAULT); | |
| 758 | |
| 759 if (a_id >= 0) | |
| 760 { | |
| 761 retval = (H5Awrite (a_id, type_hid, fpath.c_str ()) >= 0); | |
| 762 | |
| 763 H5Aclose (a_id); | |
| 764 } | |
| 765 else | |
| 766 retval = false; | |
| 4988 | 767 } |
| 768 | |
| 769 H5Sclose (space_hid); | |
| 770 H5Tclose (type_hid); | |
| 771 H5Gclose (group_hid); | |
| 772 | |
| 773 return retval; | |
| 774 } | |
| 775 | |
| 776 bool | |
| 777 octave_fcn_handle::load_hdf5 (hid_t loc_id, const char *name, | |
| 6625 | 778 bool have_h5giterate_bug) |
| 4988 | 779 { |
| 7336 | 780 bool success = true; |
| 781 | |
| 4988 | 782 hid_t group_hid, data_hid, space_hid, type_hid, type_class_hid, st_id; |
| 783 hsize_t rank; | |
| 784 int slen; | |
| 785 | |
| 786 group_hid = H5Gopen (loc_id, name); | |
| 7336 | 787 if (group_hid < 0) |
| 788 return false; | |
| 4988 | 789 |
| 790 data_hid = H5Dopen (group_hid, "nm"); | |
| 791 | |
| 792 if (data_hid < 0) | |
| 793 { | |
| 794 H5Gclose (group_hid); | |
| 795 return false; | |
| 796 } | |
| 797 | |
| 798 type_hid = H5Dget_type (data_hid); | |
| 799 type_class_hid = H5Tget_class (type_hid); | |
| 800 | |
| 801 if (type_class_hid != H5T_STRING) | |
| 802 { | |
| 803 H5Tclose (type_hid); | |
| 804 H5Dclose (data_hid); | |
| 805 H5Gclose (group_hid); | |
| 806 return false; | |
| 807 } | |
| 808 | |
| 809 space_hid = H5Dget_space (data_hid); | |
| 810 rank = H5Sget_simple_extent_ndims (space_hid); | |
| 811 | |
| 812 if (rank != 0) | |
| 813 { | |
| 814 H5Sclose (space_hid); | |
| 815 H5Tclose (type_hid); | |
| 816 H5Dclose (data_hid); | |
| 817 H5Gclose (group_hid); | |
| 818 return false; | |
| 819 } | |
| 820 | |
| 821 slen = H5Tget_size (type_hid); | |
| 822 if (slen < 0) | |
| 823 { | |
| 824 H5Sclose (space_hid); | |
| 825 H5Tclose (type_hid); | |
| 826 H5Dclose (data_hid); | |
| 827 H5Gclose (group_hid); | |
| 828 return false; | |
| 829 } | |
| 830 | |
| 831 OCTAVE_LOCAL_BUFFER (char, nm_tmp, slen); | |
| 832 | |
| 833 // create datatype for (null-terminated) string to read into: | |
| 834 st_id = H5Tcopy (H5T_C_S1); | |
| 835 H5Tset_size (st_id, slen); | |
| 836 | |
| 5760 | 837 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, nm_tmp) < 0) |
| 4988 | 838 { |
| 6695 | 839 H5Tclose (st_id); |
| 4988 | 840 H5Sclose (space_hid); |
| 841 H5Tclose (type_hid); | |
| 6695 | 842 H5Dclose (data_hid); |
| 4988 | 843 H5Gclose (group_hid); |
| 844 return false; | |
| 845 } | |
| 846 H5Tclose (st_id); | |
| 847 H5Dclose (data_hid); | |
| 848 nm = nm_tmp; | |
| 849 | |
| 850 if (nm == "@<anonymous>") | |
| 851 { | |
| 852 data_hid = H5Dopen (group_hid, "fcn"); | |
| 853 | |
| 854 if (data_hid < 0) | |
| 855 { | |
| 6695 | 856 H5Sclose (space_hid); |
| 857 H5Tclose (type_hid); | |
| 4988 | 858 H5Gclose (group_hid); |
| 859 return false; | |
| 860 } | |
| 861 | |
| 6695 | 862 H5Tclose (type_hid); |
| 4988 | 863 type_hid = H5Dget_type (data_hid); |
| 864 type_class_hid = H5Tget_class (type_hid); | |
| 865 | |
| 866 if (type_class_hid != H5T_STRING) | |
| 867 { | |
| 6695 | 868 H5Sclose (space_hid); |
| 4988 | 869 H5Tclose (type_hid); |
| 870 H5Dclose (data_hid); | |
| 871 H5Gclose (group_hid); | |
| 872 return false; | |
| 873 } | |
| 874 | |
| 6695 | 875 H5Sclose (space_hid); |
| 4988 | 876 space_hid = H5Dget_space (data_hid); |
| 877 rank = H5Sget_simple_extent_ndims (space_hid); | |
| 878 | |
| 879 if (rank != 0) | |
| 880 { | |
| 881 H5Sclose (space_hid); | |
| 882 H5Tclose (type_hid); | |
| 883 H5Dclose (data_hid); | |
| 884 H5Gclose (group_hid); | |
| 885 return false; | |
| 886 } | |
| 887 | |
| 888 slen = H5Tget_size (type_hid); | |
| 889 if (slen < 0) | |
| 890 { | |
| 891 H5Sclose (space_hid); | |
| 892 H5Tclose (type_hid); | |
| 893 H5Dclose (data_hid); | |
| 894 H5Gclose (group_hid); | |
| 895 return false; | |
| 896 } | |
| 897 | |
| 898 OCTAVE_LOCAL_BUFFER (char, fcn_tmp, slen); | |
| 899 | |
| 900 // create datatype for (null-terminated) string to read into: | |
| 901 st_id = H5Tcopy (H5T_C_S1); | |
| 902 H5Tset_size (st_id, slen); | |
| 903 | |
| 5760 | 904 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, fcn_tmp) < 0) |
| 4988 | 905 { |
| 6695 | 906 H5Tclose (st_id); |
| 4988 | 907 H5Sclose (space_hid); |
| 908 H5Tclose (type_hid); | |
| 6695 | 909 H5Dclose (data_hid); |
| 4988 | 910 H5Gclose (group_hid); |
| 911 return false; | |
| 912 } | |
| 6695 | 913 H5Tclose (st_id); |
| 4988 | 914 H5Dclose (data_hid); |
| 6625 | 915 |
| 916 octave_idx_type len = 0; | |
| 917 | |
| 918 // we have to pull some shenanigans here to make sure | |
| 919 // HDF5 doesn't print out all sorts of error messages if we | |
| 920 // call H5Aopen for a non-existing attribute | |
| 921 | |
| 922 H5E_auto_t err_func; | |
| 923 void *err_func_data; | |
| 4988 | 924 |
| 6625 | 925 // turn off error reporting temporarily, but save the error |
| 926 // reporting function: | |
| 927 H5Eget_auto (&err_func, &err_func_data); | |
| 928 H5Eset_auto (0, 0); | |
| 929 | |
| 930 hid_t attr_id = H5Aopen_name (group_hid, "SYMBOL_TABLE"); | |
| 4988 | 931 |
| 6625 | 932 if (attr_id >= 0) |
| 933 { | |
| 934 if (H5Aread (attr_id, H5T_NATIVE_IDX, &len) < 0) | |
| 935 success = false; | |
| 936 | |
| 937 H5Aclose (attr_id); | |
| 938 } | |
| 939 | |
| 940 // restore error reporting: | |
| 941 H5Eset_auto (err_func, err_func_data); | |
| 942 | |
| 7336 | 943 symbol_table::scope_id local_scope = symbol_table::alloc_scope (); |
| 944 | |
| 6625 | 945 if (len > 0 && success) |
| 4989 | 946 { |
| 6625 | 947 #ifdef HAVE_H5GGET_NUM_OBJS |
| 948 hsize_t num_obj = 0; | |
| 949 data_hid = H5Gopen (group_hid, "symbol table"); | |
| 950 H5Gget_num_objs (data_hid, &num_obj); | |
| 951 H5Gclose (data_hid); | |
| 952 | |
| 953 if (num_obj != static_cast<hsize_t>(len)) | |
| 954 { | |
| 955 error ("load: failed to load anonymous function handle"); | |
| 956 success = false; | |
| 957 } | |
| 958 #endif | |
| 959 | |
| 960 if (! error_state) | |
| 961 { | |
| 962 hdf5_callback_data dsub; | |
| 963 int current_item = 0; | |
| 964 for (octave_idx_type i = 0; i < len; i++) | |
| 965 { | |
| 966 if (H5Giterate (group_hid, "symbol table", ¤t_item, | |
| 967 hdf5_read_next_data, &dsub) <= 0) | |
| 968 { | |
| 969 error ("load: failed to load anonymous function handle"); | |
| 970 success = false; | |
| 971 break; | |
| 972 } | |
| 973 | |
| 974 if (have_h5giterate_bug) | |
| 975 current_item++; // H5Giterate returns last index processed | |
| 976 | |
| 7336 | 977 symbol_table::varref (dsub.name, local_scope) = dsub.tc; |
| 6625 | 978 } |
| 979 } | |
| 980 } | |
| 981 | |
| 982 if (success) | |
| 983 { | |
| 984 unwind_protect::begin_frame ("anon_hdf5_load"); | |
| 985 | |
| 7336 | 986 symbol_table::push_scope (local_scope); |
| 987 | |
| 988 unwind_protect::add (symbol_table::pop_scope); | |
| 6625 | 989 |
| 990 int parse_status; | |
| 991 octave_value anon_fcn_handle = | |
| 992 eval_string (fcn_tmp, true, parse_status); | |
| 993 | |
| 994 if (parse_status == 0) | |
| 995 { | |
| 996 octave_fcn_handle *fh = anon_fcn_handle.fcn_handle_value (); | |
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997 |
| 6625 | 998 if (fh) |
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999 { |
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1000 fcn = fh->fcn; |
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1001 |
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1002 octave_user_function *uf = fcn.user_function_value (true); |
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1003 |
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1004 if (uf) |
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1005 symbol_table::cache_name (uf->scope (), nm); |
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1006 } |
| 6625 | 1007 else |
| 1008 success = false; | |
| 1009 } | |
| 4989 | 1010 else |
| 6625 | 1011 success = false; |
| 1012 | |
| 1013 unwind_protect::run_frame ("anon_hdf5_load"); | |
| 4989 | 1014 } |
| 6625 | 1015 |
| 7336 | 1016 symbol_table::erase_scope (local_scope); |
| 4988 | 1017 } |
| 1018 else | |
| 1019 { | |
| 6625 | 1020 std::string octaveroot; |
| 1021 std::string fpath; | |
| 1022 | |
| 1023 // we have to pull some shenanigans here to make sure | |
| 1024 // HDF5 doesn't print out all sorts of error messages if we | |
| 1025 // call H5Aopen for a non-existing attribute | |
| 1026 | |
| 1027 H5E_auto_t err_func; | |
| 1028 void *err_func_data; | |
| 1029 | |
| 1030 // turn off error reporting temporarily, but save the error | |
| 1031 // reporting function: | |
| 1032 H5Eget_auto (&err_func, &err_func_data); | |
| 1033 H5Eset_auto (0, 0); | |
| 1034 | |
| 1035 hid_t attr_id = H5Aopen_name (group_hid, "OCTAVEROOT"); | |
| 1036 if (attr_id >= 0) | |
| 6225 | 1037 { |
| 6695 | 1038 H5Tclose (type_hid); |
| 6625 | 1039 type_hid = H5Aget_type (attr_id); |
| 1040 type_class_hid = H5Tget_class (type_hid); | |
| 1041 | |
| 1042 if (type_class_hid != H5T_STRING) | |
| 1043 success = false; | |
| 1044 else | |
| 1045 { | |
| 1046 slen = H5Tget_size (type_hid); | |
| 1047 st_id = H5Tcopy (H5T_C_S1); | |
| 1048 H5Tset_size (st_id, slen); | |
| 1049 OCTAVE_LOCAL_BUFFER (char, root_tmp, slen); | |
| 1050 | |
| 1051 if (H5Aread (attr_id, st_id, root_tmp) < 0) | |
| 1052 success = false; | |
| 1053 else | |
| 1054 octaveroot = root_tmp; | |
| 6695 | 1055 |
| 1056 H5Tclose (st_id); | |
| 6625 | 1057 } |
| 1058 | |
| 1059 H5Aclose (attr_id); | |
| 6225 | 1060 } |
| 6625 | 1061 |
| 6695 | 1062 if (success) |
| 6625 | 1063 { |
| 6695 | 1064 attr_id = H5Aopen_name (group_hid, "FILE"); |
| 1065 if (attr_id >= 0) | |
| 1066 { | |
| 1067 H5Tclose (type_hid); | |
| 1068 type_hid = H5Aget_type (attr_id); | |
| 1069 type_class_hid = H5Tget_class (type_hid); | |
| 6625 | 1070 |
| 6695 | 1071 if (type_class_hid != H5T_STRING) |
| 6625 | 1072 success = false; |
| 1073 else | |
| 6695 | 1074 { |
| 1075 slen = H5Tget_size (type_hid); | |
| 1076 st_id = H5Tcopy (H5T_C_S1); | |
| 1077 H5Tset_size (st_id, slen); | |
| 1078 OCTAVE_LOCAL_BUFFER (char, path_tmp, slen); | |
| 1079 | |
| 1080 if (H5Aread (attr_id, st_id, path_tmp) < 0) | |
| 1081 success = false; | |
| 1082 else | |
| 1083 fpath = path_tmp; | |
| 1084 | |
| 1085 H5Tclose (st_id); | |
| 1086 } | |
| 1087 | |
| 1088 H5Aclose (attr_id); | |
| 6625 | 1089 } |
| 1090 } | |
| 1091 | |
| 1092 // restore error reporting: | |
| 1093 H5Eset_auto (err_func, err_func_data); | |
| 1094 | |
| 1095 success = (success ? set_fcn (octaveroot, fpath) : success); | |
| 4988 | 1096 } |
| 1097 | |
| 6695 | 1098 H5Tclose (type_hid); |
| 1099 H5Sclose (space_hid); | |
| 1100 H5Gclose (group_hid); | |
| 1101 | |
| 6625 | 1102 return success; |
| 4988 | 1103 } |
| 6625 | 1104 |
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1105 #endif |
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1106 |
| 6625 | 1107 /* |
| 1108 | |
| 1109 %!test | |
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1110 %! a = 2; |
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1111 %! f = @(x) a + x; |
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1112 %! g = @(x) 2 * x; |
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1113 %! hm = @flops; |
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1114 %! hdld = @svd; |
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1115 %! hbi = @log2; |
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1116 %! f2 = f; |
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1117 %! g2 = g; |
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1118 %! hm2 = hm; |
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1119 %! hdld2 = hdld; |
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1120 %! hbi2 = hbi; |
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1121 %! modes = {"-text", "-binary"}; |
| 6625 | 1122 %! if (!isempty(findstr(octave_config_info ("DEFS"),"HAVE_HDF5"))) |
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1123 %! modes(end+1) = "-hdf5"; |
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1124 %! endif |
| 7901 | 1125 %! for i = 1:numel (modes) |
| 1126 %! mode = modes{i}; | |
| 6625 | 1127 %! nm = tmpnam(); |
| 1128 %! unwind_protect | |
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1129 %! save (mode, nm, "f2", "g2", "hm2", "hdld2", "hbi2"); |
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1130 %! clear f2 g2 hm2 hdld2 hbi2 |
| 6625 | 1131 %! load (nm); |
| 1132 %! assert (f(2),f2(2)); | |
| 1133 %! assert (g(2),g2(2)); | |
| 1134 %! assert (g(3),g2(3)); | |
| 1135 %! unlink (nm); | |
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1136 %! save (mode, nm, "f2", "g2", "hm2", "hdld2", "hbi2"); |
| 6625 | 1137 %! unwind_protect_cleanup |
| 1138 %! unlink (nm); | |
| 1139 %! end_unwind_protect | |
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1140 %! endfor |
| 6625 | 1141 |
| 1142 */ | |
| 4988 | 1143 |
| 4343 | 1144 void |
| 1145 octave_fcn_handle::print (std::ostream& os, bool pr_as_read_syntax) const | |
| 1146 { | |
| 1147 print_raw (os, pr_as_read_syntax); | |
| 1148 newline (os); | |
| 1149 } | |
| 1150 | |
| 1151 void | |
| 1152 octave_fcn_handle::print_raw (std::ostream& os, bool pr_as_read_syntax) const | |
| 1153 { | |
| 4980 | 1154 bool printed = false; |
| 1155 | |
| 1156 if (nm == "@<anonymous>") | |
| 1157 { | |
| 1158 tree_print_code tpc (os); | |
| 1159 | |
| 4989 | 1160 // FCN is const because this member function is, so we can't |
| 4980 | 1161 // use it to call user_function_value, so we make a copy first. |
| 1162 | |
| 1163 octave_value ftmp = fcn; | |
| 1164 | |
| 1165 octave_user_function *f = ftmp.user_function_value (); | |
| 1166 | |
| 1167 if (f) | |
| 1168 { | |
| 1169 tree_parameter_list *p = f->parameter_list (); | |
| 1170 | |
| 1171 os << "@("; | |
| 1172 | |
| 1173 if (p) | |
| 1174 p->accept (tpc); | |
| 1175 | |
| 1176 os << ") "; | |
| 1177 | |
| 1178 tree_statement_list *b = f->body (); | |
| 1179 | |
| 1180 if (b) | |
| 1181 { | |
| 1182 assert (b->length () == 1); | |
| 1183 | |
| 1184 tree_statement *s = b->front (); | |
| 1185 | |
| 1186 if (s) | |
| 1187 { | |
| 1188 if (s->is_expression ()) | |
| 1189 { | |
| 1190 tree_expression *e = s->expression (); | |
| 1191 | |
| 1192 if (e) | |
| 6657 | 1193 e->accept (tpc); |
| 4980 | 1194 } |
| 1195 else | |
| 1196 { | |
| 1197 tree_command *c = s->command (); | |
| 1198 | |
| 1199 tpc.suspend_newline (); | |
| 1200 c->accept (tpc); | |
| 1201 tpc.resume_newline (); | |
| 1202 } | |
| 1203 } | |
| 1204 } | |
| 1205 | |
| 1206 printed = true; | |
| 1207 } | |
| 1208 } | |
| 1209 | |
| 1210 if (! printed) | |
| 1211 octave_print_internal (os, nm, pr_as_read_syntax, | |
| 1212 current_print_indent_level ()); | |
| 4343 | 1213 } |
| 1214 | |
| 1215 octave_value | |
| 1216 make_fcn_handle (const std::string& nm) | |
| 1217 { | |
| 1218 octave_value retval; | |
| 1219 | |
| 7336 | 1220 octave_value f = symbol_table::find_function (nm); |
| 6481 | 1221 |
| 7336 | 1222 if (f.is_defined ()) |
| 4930 | 1223 retval = octave_value (new octave_fcn_handle (f, nm)); |
| 4343 | 1224 else |
| 1225 error ("error creating function handle \"@%s\"", nm.c_str ()); | |
| 1226 | |
| 1227 return retval; | |
| 1228 } | |
| 1229 | |
| 4933 | 1230 DEFUN (functions, args, , |
| 4343 | 1231 "-*- texinfo -*-\n\ |
| 4933 | 1232 @deftypefn {Built-in Function} {} functions (@var{fcn_handle})\n\ |
| 1233 Return a struct containing information about the function handle\n\ | |
| 1234 @var{fcn_handle}.\n\ | |
| 1235 @end deftypefn") | |
| 4343 | 1236 { |
| 1237 octave_value retval; | |
| 1238 | |
| 4933 | 1239 if (args.length () == 1) |
| 4343 | 1240 { |
| 4933 | 1241 octave_fcn_handle *fh = args(0).fcn_handle_value (); |
| 4343 | 1242 |
| 1243 if (! error_state) | |
| 1244 { | |
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1245 octave_function *fcn = fh ? fh->function_value () : 0; |
| 4343 | 1246 |
| 4933 | 1247 if (fcn) |
| 4930 | 1248 { |
| 4933 | 1249 Octave_map m; |
| 4649 | 1250 |
| 4933 | 1251 std::string fh_nm = fh->fcn_name (); |
| 1252 | |
| 6625 | 1253 if (fh_nm == "@<anonymous>") |
| 1254 { | |
| 1255 std::ostringstream buf; | |
| 1256 fh->print_raw (buf); | |
| 1257 m.assign ("function", buf.str ()); | |
| 1258 | |
| 1259 m.assign ("type", "anonymous"); | |
| 1260 } | |
| 1261 else | |
| 1262 { | |
| 1263 m.assign ("function", fh_nm); | |
| 4343 | 1264 |
| 6625 | 1265 if (fcn->is_nested_function ()) |
| 1266 { | |
| 1267 m.assign ("type", "subfunction"); | |
| 1268 Cell parentage (dim_vector (1, 2)); | |
| 1269 parentage.elem(0) = fh_nm; | |
| 1270 parentage.elem(1) = fcn->parent_fcn_name (); | |
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1271 m.assign ("parentage", octave_value (parentage)); |
| 6625 | 1272 } |
| 1273 else | |
| 1274 m.assign ("type", "simple"); | |
| 1275 } | |
| 4933 | 1276 |
| 1277 std::string nm = fcn->fcn_file_name (); | |
| 4343 | 1278 |
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1279 if (fh_nm == "@<anonymous>") |
| 4935 | 1280 { |
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1281 m.assign ("file", nm); |
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1282 |
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1283 octave_user_function *fu = fh->user_function_value (); |
| 6625 | 1284 |
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1285 std::list<symbol_table::symbol_record> vars |
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1286 = symbol_table::all_variables (fu->scope (), 0); |
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1287 |
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1288 size_t varlen = vars.size (); |
| 6625 | 1289 |
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1290 if (varlen > 0) |
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1291 { |
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1292 Octave_map ws; |
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1293 for (std::list<symbol_table::symbol_record>::const_iterator p = vars.begin (); |
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1294 p != vars.end (); p++) |
| 6625 | 1295 { |
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1296 ws.assign (p->name (), p->varval (0)); |
| 6625 | 1297 } |
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1298 |
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1299 m.assign ("workspace", ws); |
| 6625 | 1300 } |
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1301 } |
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1302 else if (fcn->is_user_function () || fcn->is_user_script ()) |
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1303 { |
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1304 octave_function *fu = fh->function_value (); |
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1305 m.assign ("file", fu->fcn_file_name ()); |
| 4935 | 1306 } |
| 4343 | 1307 else |
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1308 m.assign ("file", ""); |
| 4933 | 1309 |
| 1310 retval = m; | |
| 4343 | 1311 } |
| 1312 else | |
| 4933 | 1313 error ("functions: invalid function handle object"); |
| 4343 | 1314 } |
| 1315 else | |
| 4933 | 1316 error ("functions: argument must be a function handle object"); |
| 4343 | 1317 } |
| 1318 else | |
| 5823 | 1319 print_usage (); |
| 4343 | 1320 |
| 1321 return retval; | |
| 1322 } | |
| 1323 | |
| 4933 | 1324 DEFUN (func2str, args, , |
| 4343 | 1325 "-*- texinfo -*-\n\ |
| 4933 | 1326 @deftypefn {Built-in Function} {} func2str (@var{fcn_handle})\n\ |
| 1327 Return a string containing the name of the function referenced by\n\ | |
| 1328 the function handle @var{fcn_handle}.\n\ | |
| 1329 @end deftypefn") | |
| 4343 | 1330 { |
| 1331 octave_value retval; | |
| 1332 | |
| 4933 | 1333 if (args.length () == 1) |
| 4930 | 1334 { |
| 4933 | 1335 octave_fcn_handle *fh = args(0).fcn_handle_value (); |
| 4930 | 1336 |
| 4933 | 1337 if (! error_state && fh) |
| 1338 { | |
| 1339 std::string fh_nm = fh->fcn_name (); | |
| 6416 | 1340 |
| 1341 if (fh_nm == "@<anonymous>") | |
| 1342 { | |
| 1343 std::ostringstream buf; | |
| 1344 | |
| 1345 fh->print_raw (buf); | |
| 1346 | |
| 1347 retval = buf.str (); | |
| 1348 } | |
| 1349 else | |
| 1350 retval = fh_nm; | |
| 4933 | 1351 } |
| 4343 | 1352 else |
| 4933 | 1353 error ("func2str: expecting valid function handle as first argument"); |
| 4343 | 1354 } |
| 1355 else | |
| 5823 | 1356 print_usage (); |
| 4343 | 1357 |
| 1358 return retval; | |
| 1359 } | |
| 1360 | |
| 4933 | 1361 DEFUN (str2func, args, , |
| 4343 | 1362 "-*- texinfo -*-\n\ |
| 4933 | 1363 @deftypefn {Built-in Function} {} str2func (@var{fcn_name})\n\ |
| 1364 Return a function handle constructed from the string @var{fcn_name}.\n\ | |
| 1365 @end deftypefn") | |
| 4343 | 1366 { |
| 1367 octave_value retval; | |
| 1368 | |
| 4933 | 1369 if (args.length () == 1) |
| 4343 | 1370 { |
| 4933 | 1371 std::string nm = args(0).string_value (); |
| 4343 | 1372 |
| 4933 | 1373 if (! error_state) |
| 1374 retval = make_fcn_handle (nm); | |
| 4343 | 1375 else |
| 4933 | 1376 error ("str2func: expecting string as first argument"); |
| 4343 | 1377 } |
| 1378 else | |
| 5823 | 1379 print_usage (); |
| 4343 | 1380 |
| 1381 return retval; | |
| 1382 } | |
| 1383 | |
| 1384 /* | |
|
7767
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|
1385 %!function y = testrecursionfunc (f, x, n) |
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1386 %! if (nargin < 3) |
|
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1387 %! n = 0; |
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1388 %! endif |
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1389 %! if (n > 2) |
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1390 %! y = f (x); |
|
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1391 %! else |
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1392 %! n++; |
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1393 %! y = testrecursionfunc (@(x) f(2*x), x, n); |
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1394 %! endif |
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1395 %!test |
|
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1396 %! assert (testrecursionfunc (@(x) x, 1), 8); |
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1397 */ |
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1398 |
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1399 /* |
| 4343 | 1400 ;;; Local Variables: *** |
| 1401 ;;; mode: C++ *** | |
| 1402 ;;; End: *** | |
| 1403 */ |