Mercurial > hg > octave-lyh
annotate src/ov-fcn-handle.cc @ 7689:a9d25da4ed9c
octave_fcn_handle::subsref: don't call next_subsref
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Thu, 03 Apr 2008 13:13:01 -0400 |
| parents | 745a8299c2b5 |
| children | 39930366b709 |
| 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 |
| 4924 | 68 octave_value_list |
| 69 octave_fcn_handle::subsref (const std::string& type, | |
| 70 const std::list<octave_value_list>& idx, | |
| 71 int nargout) | |
| 72 { | |
| 73 octave_value_list retval; | |
| 74 | |
| 75 switch (type[0]) | |
| 76 { | |
| 77 case '(': | |
| 78 { | |
| 7336 | 79 out_of_date_check (fcn); |
| 5663 | 80 |
| 7336 | 81 if (fcn.is_defined ()) |
| 82 { | |
| 83 octave_function *f = function_value (); | |
| 5663 | 84 |
| 7336 | 85 if (f) |
| 86 retval = f->subsref (type, idx, nargout); | |
| 5663 | 87 else |
| 7336 | 88 error ("invalid function handle"); |
| 5663 | 89 } |
| 5312 | 90 else |
| 91 error ("invalid function handle"); | |
| 4924 | 92 } |
| 93 break; | |
| 94 | |
| 95 case '{': | |
| 96 case '.': | |
| 97 { | |
| 4930 | 98 std::string typ_nm = type_name (); |
| 99 error ("%s cannot be indexed with %c", typ_nm.c_str (), type[0]); | |
| 4924 | 100 } |
| 101 break; | |
| 102 | |
| 103 default: | |
| 104 panic_impossible (); | |
| 105 } | |
| 106 | |
|
7689
a9d25da4ed9c
octave_fcn_handle::subsref: don't call next_subsref
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
107 // There's no need to call next_subsref here -- |
|
a9d25da4ed9c
octave_fcn_handle::subsref: don't call next_subsref
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
108 // octave_function::subsref will handle that for us. |
| 4924 | 109 |
| 110 return retval; | |
| 111 } | |
| 112 | |
| 4988 | 113 bool |
| 6625 | 114 octave_fcn_handle::set_fcn (const std::string &octaveroot, |
| 115 const std::string& fpath) | |
| 4988 | 116 { |
| 6625 | 117 bool success = true; |
| 118 | |
| 119 if (octaveroot.length () != 0 && | |
| 120 fpath.length () >= octaveroot.length () && | |
| 121 fpath.substr (0, octaveroot.length ()) == octaveroot && | |
| 122 OCTAVE_EXEC_PREFIX != octaveroot) | |
| 123 { | |
| 124 // First check if just replacing matlabroot is enough | |
| 125 std::string str = OCTAVE_EXEC_PREFIX + | |
| 126 fpath.substr (octaveroot.length ()); | |
| 127 file_stat fs (str); | |
| 128 | |
| 129 if (fs.exists ()) | |
| 130 { | |
| 7336 | 131 size_t xpos = str.find_last_of (file_ops::dir_sep_chars); |
| 6625 | 132 |
| 7336 | 133 std::string dir_name = str.substr (0, xpos); |
| 6625 | 134 |
| 7336 | 135 octave_function *xfcn |
| 136 = load_fcn_from_file (str, dir_name, "", nm); | |
| 6625 | 137 |
| 7336 | 138 if (xfcn) |
| 139 { | |
| 140 octave_value tmp (xfcn); | |
| 6625 | 141 |
| 7336 | 142 fcn = octave_value (new octave_fcn_handle (tmp, nm)); |
| 6625 | 143 } |
| 144 else | |
| 145 { | |
| 146 error ("function handle points to non-existent function"); | |
| 147 success = false; | |
| 148 } | |
| 149 } | |
| 150 else | |
| 151 { | |
| 152 // Next just search for it anywhere in the system path | |
| 153 string_vector names(3); | |
| 154 names(0) = nm + ".oct"; | |
| 155 names(1) = nm + ".mex"; | |
| 156 names(2) = nm + ".m"; | |
| 157 | |
| 6626 | 158 dir_path p (load_path::system_path ()); |
| 6625 | 159 |
| 160 str = octave_env::make_absolute | |
| 161 (p.find_first_of (names), octave_env::getcwd ()); | |
| 162 | |
| 7336 | 163 size_t xpos = str.find_last_of (file_ops::dir_sep_chars); |
| 6625 | 164 |
| 7336 | 165 std::string dir_name = str.substr (0, xpos); |
| 166 | |
| 167 octave_function *xfcn = load_fcn_from_file (str, dir_name, "", nm); | |
| 4989 | 168 |
| 7336 | 169 if (xfcn) |
| 170 { | |
| 171 octave_value tmp (xfcn); | |
| 6625 | 172 |
| 7336 | 173 fcn = octave_value (new octave_fcn_handle (tmp, nm)); |
| 6625 | 174 } |
| 175 else | |
| 176 { | |
| 177 error ("function handle points to non-existent function"); | |
| 178 success = false; | |
| 179 } | |
| 180 } | |
| 181 } | |
| 182 else | |
| 183 { | |
| 184 if (fpath.length () > 0) | |
| 185 { | |
| 7336 | 186 size_t xpos = fpath.find_last_of (file_ops::dir_sep_chars); |
| 6625 | 187 |
| 7336 | 188 std::string dir_name = fpath.substr (0, xpos); |
| 189 | |
| 190 octave_function *xfcn = load_fcn_from_file (fpath, dir_name, "", nm); | |
| 6625 | 191 |
| 7336 | 192 if (xfcn) |
| 193 { | |
| 194 octave_value tmp (xfcn); | |
| 6625 | 195 |
| 7336 | 196 fcn = octave_value (new octave_fcn_handle (tmp, nm)); |
| 6625 | 197 } |
| 198 else | |
| 199 { | |
| 200 error ("function handle points to non-existent function"); | |
| 201 success = false; | |
| 202 } | |
| 203 } | |
| 204 else | |
| 205 { | |
| 7336 | 206 fcn = symbol_table::find_function (nm); |
| 207 | |
| 6625 | 208 if (! fcn.is_function ()) |
| 209 { | |
| 210 error ("function handle points to non-existent function"); | |
| 211 success = false; | |
| 212 } | |
| 213 } | |
| 214 } | |
| 215 | |
| 216 return success; | |
| 217 } | |
| 218 | |
| 219 bool | |
| 6974 | 220 octave_fcn_handle::save_ascii (std::ostream& os) |
| 6625 | 221 { |
| 4988 | 222 if (nm == "@<anonymous>") |
| 223 { | |
| 6625 | 224 os << nm << "\n"; |
| 225 | |
| 4989 | 226 print_raw (os, true); |
| 227 os << "\n"; | |
| 6625 | 228 |
| 7336 | 229 if (fcn.is_undefined ()) |
| 6625 | 230 return false; |
| 231 | |
| 232 octave_user_function *f = fcn.user_function_value (); | |
| 233 | |
| 7336 | 234 std::list<symbol_table::symbol_record> vars |
| 235 = symbol_table::all_variables (f->scope ()); | |
| 6625 | 236 |
| 7336 | 237 size_t varlen = vars.size (); |
| 6625 | 238 |
| 239 if (varlen > 0) | |
| 240 { | |
| 241 os << "# length: " << varlen << "\n"; | |
| 242 | |
| 7336 | 243 for (std::list<symbol_table::symbol_record>::const_iterator p = vars.begin (); |
| 244 p != vars.end (); p++) | |
| 6625 | 245 { |
| 7336 | 246 if (! save_ascii_data (os, p->varval (), p->name (), false, 0)) |
| 6625 | 247 return os; |
| 248 } | |
| 249 } | |
| 250 } | |
| 251 else | |
| 252 { | |
| 253 os << "# octaveroot: " << OCTAVE_EXEC_PREFIX << "\n"; | |
| 254 os << "# path: " << user_function_value ()-> fcn_file_name () << "\n"; | |
| 255 os << nm << "\n"; | |
| 4988 | 256 } |
| 257 | |
| 258 return true; | |
| 259 } | |
| 260 | |
| 261 bool | |
| 262 octave_fcn_handle::load_ascii (std::istream& is) | |
| 263 { | |
| 6625 | 264 bool success = true; |
| 265 | |
| 266 std::streampos pos = is.tellg (); | |
| 267 std::string octaveroot = extract_keyword (is, "octaveroot", true); | |
| 268 if (octaveroot.length() == 0) | |
| 269 { | |
| 270 is.seekg (pos); | |
| 271 is.clear (); | |
| 272 } | |
| 273 pos = is.tellg (); | |
| 274 std::string fpath = extract_keyword (is, "path", true); | |
| 275 if (fpath.length() == 0) | |
| 276 { | |
| 277 is.seekg (pos); | |
| 278 is.clear (); | |
| 279 } | |
| 280 | |
| 4988 | 281 is >> nm; |
| 4989 | 282 |
| 4988 | 283 if (nm == "@<anonymous>") |
| 284 { | |
| 6625 | 285 octave_idx_type len = 0; |
| 4988 | 286 char c; |
| 5765 | 287 std::ostringstream buf; |
| 4988 | 288 |
| 4989 | 289 // Skip preceeding newline(s). |
| 290 while (is.get (c) && c == '\n') | |
| 291 /* do nothing */; | |
| 4988 | 292 |
| 293 if (is) | |
| 294 { | |
| 295 buf << c; | |
| 296 | |
| 297 // Get a line of text whitespace characters included, leaving | |
| 4989 | 298 // newline in the stream. |
| 299 | |
| 4988 | 300 while (is.peek () != '\n') |
| 301 { | |
| 302 is.get (c); | |
| 303 if (! is) | |
| 304 break; | |
| 305 buf << c; | |
| 306 } | |
| 307 } | |
| 308 | |
| 6625 | 309 pos = is.tellg (); |
| 7336 | 310 |
| 311 symbol_table::scope_id local_scope = symbol_table::alloc_scope (); | |
| 4988 | 312 |
| 6625 | 313 if (extract_keyword (is, "length", len, true) && len >= 0) |
| 4989 | 314 { |
| 6625 | 315 if (len > 0) |
| 316 { | |
| 317 for (octave_idx_type i = 0; i < len; i++) | |
| 318 { | |
| 319 octave_value t2; | |
| 320 bool dummy; | |
| 321 | |
| 322 std::string name | |
| 323 = read_ascii_data (is, std::string (), dummy, t2, i); | |
| 324 | |
| 325 if (!is) | |
| 326 { | |
| 327 error ("load: failed to load anonymous function handle"); | |
| 328 break; | |
| 329 } | |
| 330 | |
| 7336 | 331 symbol_table::varref (name, local_scope) = t2; |
| 6625 | 332 } |
| 333 } | |
| 4989 | 334 } |
| 335 else | |
| 6625 | 336 { |
| 337 is.seekg (pos); | |
| 338 is.clear (); | |
| 339 } | |
| 340 | |
| 341 if (is && success) | |
| 342 { | |
| 343 unwind_protect::begin_frame ("anon_ascii_load"); | |
| 344 | |
| 7336 | 345 symbol_table::push_scope (local_scope); |
| 346 | |
| 347 unwind_protect::add (symbol_table::pop_scope); | |
| 6625 | 348 |
| 349 int parse_status; | |
| 350 octave_value anon_fcn_handle = | |
| 351 eval_string (buf.str (), true, parse_status); | |
| 352 | |
| 353 if (parse_status == 0) | |
| 354 { | |
| 355 octave_fcn_handle *fh = | |
| 356 anon_fcn_handle.fcn_handle_value (); | |
| 357 if (fh) | |
| 358 fcn = fh->fcn; | |
| 359 else | |
| 360 success = false; | |
| 361 } | |
| 362 else | |
| 363 success = false; | |
| 364 | |
| 365 unwind_protect::run_frame ("anon_ascii_load"); | |
| 366 } | |
| 367 else | |
| 368 success = false; | |
| 369 | |
| 7336 | 370 symbol_table::erase_scope (local_scope); |
| 4988 | 371 } |
| 372 else | |
| 6625 | 373 success = set_fcn (octaveroot, fpath); |
| 4988 | 374 |
| 6625 | 375 return success; |
| 4988 | 376 } |
| 377 | |
| 6625 | 378 /* |
| 379 | |
| 380 %!test | |
| 381 %! a = 2; | |
| 382 %! f = @(x) a + x; | |
| 383 %! g = @(x) 2 * x; | |
| 384 %! h = @log2; | |
| 385 %! f2 = f; | |
| 386 %! g2 = g; | |
| 387 %! h2 = h; | |
| 388 %! nm = tmpnam(); | |
| 389 %! unwind_protect | |
| 390 %! save ("-text", nm, "f2", "g2", "h2"); | |
| 391 %! clear f2 g2 h2 | |
| 392 %! load (nm); | |
| 393 %! assert (f(2),f2(2)); | |
| 394 %! assert (g(2),g2(2)); | |
| 395 %! assert (g(3),g2(3)); | |
| 396 %! unlink (nm); | |
| 397 %! save ("-text", nm, "f2", "g2", "h2"); | |
| 398 %! unwind_protect_cleanup | |
| 399 %! unlink (nm); | |
| 400 %! end_unwind_protect | |
| 401 | |
| 402 */ | |
| 403 | |
| 4988 | 404 bool |
| 6625 | 405 octave_fcn_handle::save_binary (std::ostream& os, bool& save_as_floats) |
| 4988 | 406 { |
| 407 if (nm == "@<anonymous>") | |
| 408 { | |
| 6625 | 409 std::ostringstream nmbuf; |
| 410 | |
| 7336 | 411 if (fcn.is_undefined ()) |
| 6625 | 412 return false; |
| 413 | |
| 414 octave_user_function *f = fcn.user_function_value (); | |
| 415 | |
| 7336 | 416 std::list<symbol_table::symbol_record> vars |
| 417 = symbol_table::all_variables (f->scope ()); | |
| 6625 | 418 |
| 7336 | 419 size_t varlen = vars.size (); |
| 6625 | 420 |
| 421 if (varlen > 0) | |
| 422 nmbuf << nm << " " << varlen; | |
| 423 else | |
| 424 nmbuf << nm; | |
| 425 | |
| 426 std::string buf_str = nmbuf.str(); | |
| 427 int32_t tmp = buf_str.length (); | |
| 428 os.write (reinterpret_cast<char *> (&tmp), 4); | |
| 429 os.write (buf_str.c_str (), buf_str.length ()); | |
| 430 | |
| 5765 | 431 std::ostringstream buf; |
| 4988 | 432 print_raw (buf, true); |
| 5765 | 433 std::string stmp = buf.str (); |
| 4988 | 434 tmp = stmp.length (); |
| 5760 | 435 os.write (reinterpret_cast<char *> (&tmp), 4); |
| 4988 | 436 os.write (stmp.c_str (), stmp.length ()); |
| 6625 | 437 |
| 438 if (varlen > 0) | |
| 439 { | |
| 7336 | 440 for (std::list<symbol_table::symbol_record>::const_iterator p = vars.begin (); |
| 441 p != vars.end (); p++) | |
| 6625 | 442 { |
| 7336 | 443 if (! save_binary_data (os, p->varval (), p->name (), |
| 6625 | 444 "", 0, save_as_floats)) |
| 445 return os; | |
| 446 } | |
| 447 } | |
| 448 } | |
| 449 else | |
| 450 { | |
| 451 std::ostringstream nmbuf; | |
| 452 | |
| 453 nmbuf << nm << "\n" << OCTAVE_EXEC_PREFIX << "\n" | |
| 454 << user_function_value ()-> fcn_file_name () ; | |
| 455 | |
| 456 std::string buf_str = nmbuf.str (); | |
| 457 int32_t tmp = buf_str.length (); | |
| 458 os.write (reinterpret_cast<char *> (&tmp), 4); | |
| 459 os.write (buf_str.c_str (), buf_str.length ()); | |
| 4988 | 460 } |
| 7336 | 461 |
| 4988 | 462 return true; |
| 463 } | |
| 464 | |
| 465 bool | |
| 466 octave_fcn_handle::load_binary (std::istream& is, bool swap, | |
| 6625 | 467 oct_mach_info::float_format fmt) |
| 4988 | 468 { |
| 6625 | 469 bool success = true; |
| 7336 | 470 |
| 5828 | 471 int32_t tmp; |
| 5760 | 472 if (! is.read (reinterpret_cast<char *> (&tmp), 4)) |
| 4988 | 473 return false; |
| 474 if (swap) | |
| 475 swap_bytes<4> (&tmp); | |
| 476 | |
| 477 OCTAVE_LOCAL_BUFFER (char, ctmp1, tmp+1); | |
| 478 is.read (ctmp1, tmp); | |
| 479 nm = std::string (ctmp1); | |
| 480 | |
| 481 if (! is) | |
| 482 return false; | |
| 483 | |
| 6625 | 484 if (nm.length() >= 12 && nm.substr (0, 12) == "@<anonymous>") |
| 4988 | 485 { |
| 6625 | 486 octave_idx_type len = 0; |
| 487 | |
| 488 if (nm.length() > 12) | |
| 489 { | |
| 490 std::istringstream nm_is (nm.substr(12)); | |
| 491 nm_is >> len; | |
| 492 nm = nm.substr(0,12); | |
| 493 } | |
| 494 | |
| 5760 | 495 if (! is.read (reinterpret_cast<char *> (&tmp), 4)) |
| 4988 | 496 return false; |
| 497 if (swap) | |
| 498 swap_bytes<4> (&tmp); | |
| 499 | |
| 500 OCTAVE_LOCAL_BUFFER (char, ctmp2, tmp+1); | |
| 501 is.read (ctmp2, tmp); | |
| 502 | |
| 7336 | 503 symbol_table::scope_id local_scope = symbol_table::alloc_scope (); |
| 504 | |
| 6625 | 505 if (len > 0) |
| 4989 | 506 { |
| 6625 | 507 for (octave_idx_type i = 0; i < len; i++) |
| 508 { | |
| 509 octave_value t2; | |
| 510 bool dummy; | |
| 511 std::string doc; | |
| 512 | |
| 513 std::string name = | |
| 514 read_binary_data (is, swap, fmt, std::string (), | |
| 515 dummy, t2, doc); | |
| 516 | |
| 517 if (!is) | |
| 518 { | |
| 519 error ("load: failed to load anonymous function handle"); | |
| 520 break; | |
| 521 } | |
| 522 | |
| 7336 | 523 symbol_table::varref (name, local_scope) = t2; |
| 6625 | 524 } |
| 525 } | |
| 526 | |
| 527 if (is && success) | |
| 528 { | |
| 529 unwind_protect::begin_frame ("anon_binary_load"); | |
| 530 | |
| 7336 | 531 symbol_table::push_scope (local_scope); |
| 532 | |
| 533 unwind_protect::add (symbol_table::pop_scope); | |
| 6625 | 534 |
| 535 int parse_status; | |
| 536 octave_value anon_fcn_handle = | |
| 537 eval_string (ctmp2, true, parse_status); | |
| 538 | |
| 539 if (parse_status == 0) | |
| 540 { | |
| 541 octave_fcn_handle *fh = anon_fcn_handle.fcn_handle_value (); | |
| 542 if (fh) | |
| 543 fcn = fh->fcn; | |
| 544 else | |
| 545 success = false; | |
| 546 } | |
| 4989 | 547 else |
| 6625 | 548 success = false; |
| 549 | |
| 550 unwind_protect::run_frame ("anon_binary_load"); | |
| 4989 | 551 } |
| 6625 | 552 |
| 7336 | 553 symbol_table::erase_scope (local_scope); |
| 4988 | 554 } |
| 555 else | |
| 556 { | |
| 6625 | 557 std::string octaveroot; |
| 558 std::string fpath; | |
| 559 | |
| 560 if (nm.find_first_of ("\n") != NPOS) | |
| 6225 | 561 { |
| 6625 | 562 size_t pos1 = nm.find_first_of ("\n"); |
| 563 size_t pos2 = nm.find_first_of ("\n", pos1 + 1); | |
| 564 octaveroot = nm.substr (pos1 + 1, pos2 - pos1 - 1); | |
| 565 fpath = nm.substr (pos2 + 1); | |
| 566 nm = nm.substr (0, pos1); | |
| 6225 | 567 } |
| 6625 | 568 |
| 569 success = set_fcn (octaveroot, fpath); | |
| 570 } | |
| 571 | |
| 572 return success; | |
| 4988 | 573 } |
| 574 | |
| 6625 | 575 /* |
| 576 | |
| 577 %!test | |
| 578 %! a = 2; | |
| 579 %! f = @(x) a + x; | |
| 580 %! g = @(x) 2 * x; | |
| 581 %! h = @log2; | |
| 582 %! f2 = f; | |
| 583 %! g2 = g; | |
| 584 %! h2 = h; | |
| 585 %! nm = tmpnam(); | |
| 586 %! unwind_protect | |
| 587 %! save ("-binary", nm, "f2", "g2", "h2"); | |
| 588 %! clear f2 g2 h2 | |
| 589 %! load (nm); | |
| 590 %! assert (f(2),f2(2)); | |
| 591 %! assert (g(2),g2(2)); | |
| 592 %! assert (g(3),g2(3)); | |
| 593 %! unlink (nm); | |
| 594 %! save ("-binary", nm, "f2", "g2", "h2"); | |
| 595 %! unwind_protect_cleanup | |
| 596 %! unlink (nm); | |
| 597 %! end_unwind_protect | |
| 598 | |
| 599 */ | |
| 600 | |
| 4988 | 601 #if defined (HAVE_HDF5) |
| 602 bool | |
| 603 octave_fcn_handle::save_hdf5 (hid_t loc_id, const char *name, | |
| 6625 | 604 bool save_as_floats) |
| 4988 | 605 { |
| 7336 | 606 bool retval = true; |
| 607 | |
| 4988 | 608 hid_t group_hid = -1; |
| 609 group_hid = H5Gcreate (loc_id, name, 0); | |
| 7336 | 610 if (group_hid < 0) |
| 611 return false; | |
| 4988 | 612 |
| 613 hid_t space_hid = -1, data_hid = -1, type_hid = -1;; | |
| 614 | |
| 615 // attach the type of the variable | |
| 616 type_hid = H5Tcopy (H5T_C_S1); | |
| 617 H5Tset_size (type_hid, nm.length () + 1); | |
| 618 if (type_hid < 0) | |
| 619 { | |
| 620 H5Gclose (group_hid); | |
| 621 return false; | |
| 622 } | |
| 623 | |
| 624 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, 2); | |
| 625 hdims[0] = 0; | |
| 626 hdims[1] = 0; | |
| 5760 | 627 space_hid = H5Screate_simple (0 , hdims, 0); |
| 4988 | 628 if (space_hid < 0) |
| 629 { | |
| 630 H5Tclose (type_hid); | |
| 631 H5Gclose (group_hid); | |
| 632 return false; | |
| 633 } | |
| 634 | |
| 635 data_hid = H5Dcreate (group_hid, "nm", type_hid, space_hid, H5P_DEFAULT); | |
| 636 if (data_hid < 0 || H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, | |
| 5760 | 637 H5P_DEFAULT, nm.c_str ()) < 0) |
| 4988 | 638 { |
| 639 H5Sclose (space_hid); | |
| 640 H5Tclose (type_hid); | |
| 641 H5Gclose (group_hid); | |
| 642 return false; | |
| 643 } | |
| 644 H5Dclose (data_hid); | |
| 645 | |
| 646 if (nm == "@<anonymous>") | |
| 647 { | |
| 5765 | 648 std::ostringstream buf; |
| 4988 | 649 print_raw (buf, true); |
| 5765 | 650 std::string stmp = buf.str (); |
| 4988 | 651 |
| 652 // attach the type of the variable | |
| 653 H5Tset_size (type_hid, stmp.length () + 1); | |
| 654 if (type_hid < 0) | |
| 655 { | |
| 6695 | 656 H5Sclose (space_hid); |
| 4988 | 657 H5Gclose (group_hid); |
| 658 return false; | |
| 659 } | |
| 660 | |
| 661 data_hid = H5Dcreate (group_hid, "fcn", type_hid, space_hid, | |
| 662 H5P_DEFAULT); | |
| 663 if (data_hid < 0 || H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, | |
| 5760 | 664 H5P_DEFAULT, stmp.c_str ()) < 0) |
| 4988 | 665 { |
| 666 H5Sclose (space_hid); | |
| 667 H5Tclose (type_hid); | |
| 668 H5Gclose (group_hid); | |
| 669 return false; | |
| 670 } | |
| 671 | |
| 672 H5Dclose (data_hid); | |
| 6625 | 673 |
| 674 octave_user_function *f = fcn.user_function_value (); | |
| 675 | |
| 7336 | 676 std::list<symbol_table::symbol_record> vars |
| 677 = symbol_table::all_variables (f->scope ()); | |
| 678 | |
| 679 size_t varlen = vars.size (); | |
| 6625 | 680 |
| 681 if (varlen > 0) | |
| 682 { | |
| 683 hid_t as_id = H5Screate (H5S_SCALAR); | |
| 684 | |
| 685 if (as_id >= 0) | |
| 686 { | |
| 687 hid_t a_id = H5Acreate (group_hid, "SYMBOL_TABLE", | |
| 688 H5T_NATIVE_IDX, as_id, H5P_DEFAULT); | |
| 689 | |
| 690 if (a_id >= 0) | |
| 691 { | |
| 692 retval = (H5Awrite (a_id, H5T_NATIVE_IDX, &varlen) >= 0); | |
| 693 | |
| 694 H5Aclose (a_id); | |
| 695 } | |
| 696 else | |
| 697 retval = false; | |
| 698 | |
| 699 H5Sclose (as_id); | |
| 700 } | |
| 701 else | |
| 702 retval = false; | |
| 703 | |
| 704 data_hid = H5Gcreate (group_hid, "symbol table", 0); | |
| 705 if (data_hid < 0) | |
| 706 { | |
| 707 H5Sclose (space_hid); | |
| 708 H5Tclose (type_hid); | |
| 709 H5Gclose (group_hid); | |
| 710 return false; | |
| 711 } | |
| 712 | |
| 7336 | 713 for (std::list<symbol_table::symbol_record>::const_iterator p = vars.begin (); |
| 714 p != vars.end (); p++) | |
| 6625 | 715 { |
| 7336 | 716 if (! add_hdf5_data (data_hid, p->varval (), p->name (), |
| 6625 | 717 "", false, save_as_floats)) |
| 718 break; | |
| 719 } | |
| 720 H5Gclose (data_hid); | |
| 721 } | |
| 722 } | |
| 723 else | |
| 724 { | |
| 725 std::string octaveroot = OCTAVE_EXEC_PREFIX; | |
| 726 std::string fpath = user_function_value ()-> fcn_file_name (); | |
| 727 | |
| 728 H5Sclose (space_hid); | |
| 729 hdims[0] = 1; | |
| 730 hdims[1] = octaveroot.length (); | |
| 731 space_hid = H5Screate_simple (0 , hdims, 0); | |
| 732 if (space_hid < 0) | |
| 733 { | |
| 734 H5Tclose (type_hid); | |
| 735 H5Gclose (group_hid); | |
| 736 return false; | |
| 737 } | |
| 738 | |
| 739 H5Tclose (type_hid); | |
| 740 type_hid = H5Tcopy (H5T_C_S1); | |
| 741 H5Tset_size (type_hid, octaveroot.length () + 1); | |
| 742 | |
| 743 hid_t a_id = H5Acreate (group_hid, "OCTAVEROOT", | |
| 744 type_hid, space_hid, H5P_DEFAULT); | |
| 745 | |
| 746 if (a_id >= 0) | |
| 747 { | |
| 748 retval = (H5Awrite (a_id, type_hid, octaveroot.c_str ()) >= 0); | |
| 749 | |
| 750 H5Aclose (a_id); | |
| 751 } | |
| 752 else | |
| 6695 | 753 { |
| 754 H5Sclose (space_hid); | |
| 755 H5Tclose (type_hid); | |
| 756 H5Gclose (group_hid); | |
| 757 return false; | |
| 758 } | |
| 6625 | 759 |
| 760 H5Sclose (space_hid); | |
| 761 hdims[0] = 1; | |
| 762 hdims[1] = fpath.length (); | |
| 763 space_hid = H5Screate_simple (0 , hdims, 0); | |
| 764 if (space_hid < 0) | |
| 765 { | |
| 766 H5Tclose (type_hid); | |
| 767 H5Gclose (group_hid); | |
| 768 return false; | |
| 769 } | |
| 770 | |
| 771 H5Tclose (type_hid); | |
| 772 type_hid = H5Tcopy (H5T_C_S1); | |
| 773 H5Tset_size (type_hid, fpath.length () + 1); | |
| 774 | |
| 775 a_id = H5Acreate (group_hid, "FILE", type_hid, space_hid, H5P_DEFAULT); | |
| 776 | |
| 777 if (a_id >= 0) | |
| 778 { | |
| 779 retval = (H5Awrite (a_id, type_hid, fpath.c_str ()) >= 0); | |
| 780 | |
| 781 H5Aclose (a_id); | |
| 782 } | |
| 783 else | |
| 784 retval = false; | |
| 4988 | 785 } |
| 786 | |
| 787 H5Sclose (space_hid); | |
| 788 H5Tclose (type_hid); | |
| 789 H5Gclose (group_hid); | |
| 790 | |
| 791 return retval; | |
| 792 } | |
| 793 | |
| 794 bool | |
| 795 octave_fcn_handle::load_hdf5 (hid_t loc_id, const char *name, | |
| 6625 | 796 bool have_h5giterate_bug) |
| 4988 | 797 { |
| 7336 | 798 bool success = true; |
| 799 | |
| 4988 | 800 hid_t group_hid, data_hid, space_hid, type_hid, type_class_hid, st_id; |
| 801 hsize_t rank; | |
| 802 int slen; | |
| 803 | |
| 804 group_hid = H5Gopen (loc_id, name); | |
| 7336 | 805 if (group_hid < 0) |
| 806 return false; | |
| 4988 | 807 |
| 808 data_hid = H5Dopen (group_hid, "nm"); | |
| 809 | |
| 810 if (data_hid < 0) | |
| 811 { | |
| 812 H5Gclose (group_hid); | |
| 813 return false; | |
| 814 } | |
| 815 | |
| 816 type_hid = H5Dget_type (data_hid); | |
| 817 type_class_hid = H5Tget_class (type_hid); | |
| 818 | |
| 819 if (type_class_hid != H5T_STRING) | |
| 820 { | |
| 821 H5Tclose (type_hid); | |
| 822 H5Dclose (data_hid); | |
| 823 H5Gclose (group_hid); | |
| 824 return false; | |
| 825 } | |
| 826 | |
| 827 space_hid = H5Dget_space (data_hid); | |
| 828 rank = H5Sget_simple_extent_ndims (space_hid); | |
| 829 | |
| 830 if (rank != 0) | |
| 831 { | |
| 832 H5Sclose (space_hid); | |
| 833 H5Tclose (type_hid); | |
| 834 H5Dclose (data_hid); | |
| 835 H5Gclose (group_hid); | |
| 836 return false; | |
| 837 } | |
| 838 | |
| 839 slen = H5Tget_size (type_hid); | |
| 840 if (slen < 0) | |
| 841 { | |
| 842 H5Sclose (space_hid); | |
| 843 H5Tclose (type_hid); | |
| 844 H5Dclose (data_hid); | |
| 845 H5Gclose (group_hid); | |
| 846 return false; | |
| 847 } | |
| 848 | |
| 849 OCTAVE_LOCAL_BUFFER (char, nm_tmp, slen); | |
| 850 | |
| 851 // create datatype for (null-terminated) string to read into: | |
| 852 st_id = H5Tcopy (H5T_C_S1); | |
| 853 H5Tset_size (st_id, slen); | |
| 854 | |
| 5760 | 855 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, nm_tmp) < 0) |
| 4988 | 856 { |
| 6695 | 857 H5Tclose (st_id); |
| 4988 | 858 H5Sclose (space_hid); |
| 859 H5Tclose (type_hid); | |
| 6695 | 860 H5Dclose (data_hid); |
| 4988 | 861 H5Gclose (group_hid); |
| 862 return false; | |
| 863 } | |
| 864 H5Tclose (st_id); | |
| 865 H5Dclose (data_hid); | |
| 866 nm = nm_tmp; | |
| 867 | |
| 868 if (nm == "@<anonymous>") | |
| 869 { | |
| 870 data_hid = H5Dopen (group_hid, "fcn"); | |
| 871 | |
| 872 if (data_hid < 0) | |
| 873 { | |
| 6695 | 874 H5Sclose (space_hid); |
| 875 H5Tclose (type_hid); | |
| 4988 | 876 H5Gclose (group_hid); |
| 877 return false; | |
| 878 } | |
| 879 | |
| 6695 | 880 H5Tclose (type_hid); |
| 4988 | 881 type_hid = H5Dget_type (data_hid); |
| 882 type_class_hid = H5Tget_class (type_hid); | |
| 883 | |
| 884 if (type_class_hid != H5T_STRING) | |
| 885 { | |
| 6695 | 886 H5Sclose (space_hid); |
| 4988 | 887 H5Tclose (type_hid); |
| 888 H5Dclose (data_hid); | |
| 889 H5Gclose (group_hid); | |
| 890 return false; | |
| 891 } | |
| 892 | |
| 6695 | 893 H5Sclose (space_hid); |
| 4988 | 894 space_hid = H5Dget_space (data_hid); |
| 895 rank = H5Sget_simple_extent_ndims (space_hid); | |
| 896 | |
| 897 if (rank != 0) | |
| 898 { | |
| 899 H5Sclose (space_hid); | |
| 900 H5Tclose (type_hid); | |
| 901 H5Dclose (data_hid); | |
| 902 H5Gclose (group_hid); | |
| 903 return false; | |
| 904 } | |
| 905 | |
| 906 slen = H5Tget_size (type_hid); | |
| 907 if (slen < 0) | |
| 908 { | |
| 909 H5Sclose (space_hid); | |
| 910 H5Tclose (type_hid); | |
| 911 H5Dclose (data_hid); | |
| 912 H5Gclose (group_hid); | |
| 913 return false; | |
| 914 } | |
| 915 | |
| 916 OCTAVE_LOCAL_BUFFER (char, fcn_tmp, slen); | |
| 917 | |
| 918 // create datatype for (null-terminated) string to read into: | |
| 919 st_id = H5Tcopy (H5T_C_S1); | |
| 920 H5Tset_size (st_id, slen); | |
| 921 | |
| 5760 | 922 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, fcn_tmp) < 0) |
| 4988 | 923 { |
| 6695 | 924 H5Tclose (st_id); |
| 4988 | 925 H5Sclose (space_hid); |
| 926 H5Tclose (type_hid); | |
| 6695 | 927 H5Dclose (data_hid); |
| 4988 | 928 H5Gclose (group_hid); |
| 929 return false; | |
| 930 } | |
| 6695 | 931 H5Tclose (st_id); |
| 4988 | 932 H5Dclose (data_hid); |
| 6625 | 933 |
| 934 octave_idx_type len = 0; | |
| 935 | |
| 936 // we have to pull some shenanigans here to make sure | |
| 937 // HDF5 doesn't print out all sorts of error messages if we | |
| 938 // call H5Aopen for a non-existing attribute | |
| 939 | |
| 940 H5E_auto_t err_func; | |
| 941 void *err_func_data; | |
| 4988 | 942 |
| 6625 | 943 // turn off error reporting temporarily, but save the error |
| 944 // reporting function: | |
| 945 H5Eget_auto (&err_func, &err_func_data); | |
| 946 H5Eset_auto (0, 0); | |
| 947 | |
| 948 hid_t attr_id = H5Aopen_name (group_hid, "SYMBOL_TABLE"); | |
| 4988 | 949 |
| 6625 | 950 if (attr_id >= 0) |
| 951 { | |
| 952 if (H5Aread (attr_id, H5T_NATIVE_IDX, &len) < 0) | |
| 953 success = false; | |
| 954 | |
| 955 H5Aclose (attr_id); | |
| 956 } | |
| 957 | |
| 958 // restore error reporting: | |
| 959 H5Eset_auto (err_func, err_func_data); | |
| 960 | |
| 7336 | 961 symbol_table::scope_id local_scope = symbol_table::alloc_scope (); |
| 962 | |
| 6625 | 963 if (len > 0 && success) |
| 4989 | 964 { |
| 6625 | 965 #ifdef HAVE_H5GGET_NUM_OBJS |
| 966 hsize_t num_obj = 0; | |
| 967 data_hid = H5Gopen (group_hid, "symbol table"); | |
| 968 H5Gget_num_objs (data_hid, &num_obj); | |
| 969 H5Gclose (data_hid); | |
| 970 | |
| 971 if (num_obj != static_cast<hsize_t>(len)) | |
| 972 { | |
| 973 error ("load: failed to load anonymous function handle"); | |
| 974 success = false; | |
| 975 } | |
| 976 #endif | |
| 977 | |
| 978 if (! error_state) | |
| 979 { | |
| 980 hdf5_callback_data dsub; | |
| 981 int current_item = 0; | |
| 982 for (octave_idx_type i = 0; i < len; i++) | |
| 983 { | |
| 984 if (H5Giterate (group_hid, "symbol table", ¤t_item, | |
| 985 hdf5_read_next_data, &dsub) <= 0) | |
| 986 { | |
| 987 error ("load: failed to load anonymous function handle"); | |
| 988 success = false; | |
| 989 break; | |
| 990 } | |
| 991 | |
| 992 if (have_h5giterate_bug) | |
| 993 current_item++; // H5Giterate returns last index processed | |
| 994 | |
| 7336 | 995 symbol_table::varref (dsub.name, local_scope) = dsub.tc; |
| 6625 | 996 } |
| 997 } | |
| 998 } | |
| 999 | |
| 1000 if (success) | |
| 1001 { | |
| 1002 unwind_protect::begin_frame ("anon_hdf5_load"); | |
| 1003 | |
| 7336 | 1004 symbol_table::push_scope (local_scope); |
| 1005 | |
| 1006 unwind_protect::add (symbol_table::pop_scope); | |
| 6625 | 1007 |
| 1008 int parse_status; | |
| 1009 octave_value anon_fcn_handle = | |
| 1010 eval_string (fcn_tmp, true, parse_status); | |
| 1011 | |
| 1012 if (parse_status == 0) | |
| 1013 { | |
| 1014 octave_fcn_handle *fh = anon_fcn_handle.fcn_handle_value (); | |
| 1015 if (fh) | |
| 1016 fcn = fh->fcn; | |
| 1017 else | |
| 1018 success = false; | |
| 1019 } | |
| 4989 | 1020 else |
| 6625 | 1021 success = false; |
| 1022 | |
| 1023 unwind_protect::run_frame ("anon_hdf5_load"); | |
| 4989 | 1024 } |
| 6625 | 1025 |
| 7336 | 1026 symbol_table::erase_scope (local_scope); |
| 4988 | 1027 } |
| 1028 else | |
| 1029 { | |
| 6625 | 1030 std::string octaveroot; |
| 1031 std::string fpath; | |
| 1032 | |
| 1033 // we have to pull some shenanigans here to make sure | |
| 1034 // HDF5 doesn't print out all sorts of error messages if we | |
| 1035 // call H5Aopen for a non-existing attribute | |
| 1036 | |
| 1037 H5E_auto_t err_func; | |
| 1038 void *err_func_data; | |
| 1039 | |
| 1040 // turn off error reporting temporarily, but save the error | |
| 1041 // reporting function: | |
| 1042 H5Eget_auto (&err_func, &err_func_data); | |
| 1043 H5Eset_auto (0, 0); | |
| 1044 | |
| 1045 hid_t attr_id = H5Aopen_name (group_hid, "OCTAVEROOT"); | |
| 1046 if (attr_id >= 0) | |
| 6225 | 1047 { |
| 6695 | 1048 H5Tclose (type_hid); |
| 6625 | 1049 type_hid = H5Aget_type (attr_id); |
| 1050 type_class_hid = H5Tget_class (type_hid); | |
| 1051 | |
| 1052 if (type_class_hid != H5T_STRING) | |
| 1053 success = false; | |
| 1054 else | |
| 1055 { | |
| 1056 slen = H5Tget_size (type_hid); | |
| 1057 st_id = H5Tcopy (H5T_C_S1); | |
| 1058 H5Tset_size (st_id, slen); | |
| 1059 OCTAVE_LOCAL_BUFFER (char, root_tmp, slen); | |
| 1060 | |
| 1061 if (H5Aread (attr_id, st_id, root_tmp) < 0) | |
| 1062 success = false; | |
| 1063 else | |
| 1064 octaveroot = root_tmp; | |
| 6695 | 1065 |
| 1066 H5Tclose (st_id); | |
| 6625 | 1067 } |
| 1068 | |
| 1069 H5Aclose (attr_id); | |
| 6225 | 1070 } |
| 6625 | 1071 |
| 6695 | 1072 if (success) |
| 6625 | 1073 { |
| 6695 | 1074 attr_id = H5Aopen_name (group_hid, "FILE"); |
| 1075 if (attr_id >= 0) | |
| 1076 { | |
| 1077 H5Tclose (type_hid); | |
| 1078 type_hid = H5Aget_type (attr_id); | |
| 1079 type_class_hid = H5Tget_class (type_hid); | |
| 6625 | 1080 |
| 6695 | 1081 if (type_class_hid != H5T_STRING) |
| 6625 | 1082 success = false; |
| 1083 else | |
| 6695 | 1084 { |
| 1085 slen = H5Tget_size (type_hid); | |
| 1086 st_id = H5Tcopy (H5T_C_S1); | |
| 1087 H5Tset_size (st_id, slen); | |
| 1088 OCTAVE_LOCAL_BUFFER (char, path_tmp, slen); | |
| 1089 | |
| 1090 if (H5Aread (attr_id, st_id, path_tmp) < 0) | |
| 1091 success = false; | |
| 1092 else | |
| 1093 fpath = path_tmp; | |
| 1094 | |
| 1095 H5Tclose (st_id); | |
| 1096 } | |
| 1097 | |
| 1098 H5Aclose (attr_id); | |
| 6625 | 1099 } |
| 1100 } | |
| 1101 | |
| 1102 // restore error reporting: | |
| 1103 H5Eset_auto (err_func, err_func_data); | |
| 1104 | |
| 1105 success = (success ? set_fcn (octaveroot, fpath) : success); | |
| 4988 | 1106 } |
| 1107 | |
| 6695 | 1108 H5Tclose (type_hid); |
| 1109 H5Sclose (space_hid); | |
| 1110 H5Gclose (group_hid); | |
| 1111 | |
| 6625 | 1112 return success; |
| 4988 | 1113 } |
| 6625 | 1114 |
| 1115 /* | |
| 1116 | |
| 1117 %!test | |
| 1118 %! if (!isempty(findstr(octave_config_info ("DEFS"),"HAVE_HDF5"))) | |
| 1119 %! a = 2; | |
| 1120 %! f = @(x) a + x; | |
| 1121 %! g = @(x) 2 * x; | |
| 1122 %! h = @log2; | |
| 1123 %! f2 = f; | |
| 1124 %! g2 = g; | |
| 1125 %! h2 = h; | |
| 1126 %! nm = tmpnam(); | |
| 1127 %! unwind_protect | |
| 1128 %! save ("-hdf5", nm, "f2", "g2", "h2"); | |
| 1129 %! clear f2 g2 h2 | |
| 1130 %! load (nm); | |
| 1131 %! assert (f(2),f2(2)); | |
| 1132 %! assert (g(2),g2(2)); | |
| 1133 %! assert (g(3),g2(3)); | |
| 1134 %! unlink (nm); | |
| 1135 %! save ("-hdf5", nm, "f2", "g2", "h2"); | |
| 1136 %! unwind_protect_cleanup | |
| 1137 %! unlink (nm); | |
| 1138 %! end_unwind_protect | |
| 1139 %! endif | |
| 1140 | |
| 1141 */ | |
| 4988 | 1142 #endif |
| 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 { | |
| 4933 | 1245 octave_function *fcn = fh ? fh->function_value (true) : 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 (); | |
| 1271 m.assign ("parentage", parentage); | |
| 1272 } | |
| 1273 else | |
| 1274 m.assign ("type", "simple"); | |
| 1275 } | |
| 4933 | 1276 |
| 1277 std::string nm = fcn->fcn_file_name (); | |
| 4343 | 1278 |
| 4933 | 1279 if (nm.empty ()) |
| 4935 | 1280 { |
| 1281 if (fh_nm == "@<anonymous>") | |
| 6625 | 1282 { |
| 1283 m.assign ("file", ""); | |
| 1284 | |
| 1285 octave_user_function *fu = fh->user_function_value (); | |
| 1286 | |
| 7336 | 1287 std::list<symbol_table::symbol_record> vars |
| 1288 = symbol_table::all_variables (fu->scope ()); | |
| 1289 | |
| 1290 size_t varlen = vars.size (); | |
| 6625 | 1291 |
| 1292 if (varlen > 0) | |
| 1293 { | |
| 1294 Octave_map ws; | |
| 7336 | 1295 for (std::list<symbol_table::symbol_record>::const_iterator p = vars.begin (); |
| 1296 p != vars.end (); p++) | |
| 6625 | 1297 { |
| 7336 | 1298 ws.assign (p->name (), p->varval ()); |
| 6625 | 1299 } |
| 1300 | |
| 1301 m.assign ("workspace", ws); | |
| 1302 } | |
| 1303 } | |
| 5313 | 1304 else if (fcn->is_user_function ()) |
| 6625 | 1305 { |
| 1306 octave_user_function *fu = fh->user_function_value (); | |
| 1307 m.assign ("file", fu->fcn_file_name ()); | |
| 1308 } | |
| 4935 | 1309 else |
| 6625 | 1310 m.assign ("file", ""); |
| 4935 | 1311 } |
| 4343 | 1312 else |
| 4933 | 1313 m.assign ("file", nm); |
| 1314 | |
| 1315 retval = m; | |
| 4343 | 1316 } |
| 1317 else | |
| 4933 | 1318 error ("functions: invalid function handle object"); |
| 4343 | 1319 } |
| 1320 else | |
| 4933 | 1321 error ("functions: argument must be a function handle object"); |
| 4343 | 1322 } |
| 1323 else | |
| 5823 | 1324 print_usage (); |
| 4343 | 1325 |
| 1326 return retval; | |
| 1327 } | |
| 1328 | |
| 4933 | 1329 DEFUN (func2str, args, , |
| 4343 | 1330 "-*- texinfo -*-\n\ |
| 4933 | 1331 @deftypefn {Built-in Function} {} func2str (@var{fcn_handle})\n\ |
| 1332 Return a string containing the name of the function referenced by\n\ | |
| 1333 the function handle @var{fcn_handle}.\n\ | |
| 1334 @end deftypefn") | |
| 4343 | 1335 { |
| 1336 octave_value retval; | |
| 1337 | |
| 4933 | 1338 if (args.length () == 1) |
| 4930 | 1339 { |
| 4933 | 1340 octave_fcn_handle *fh = args(0).fcn_handle_value (); |
| 4930 | 1341 |
| 4933 | 1342 if (! error_state && fh) |
| 1343 { | |
| 1344 std::string fh_nm = fh->fcn_name (); | |
| 6416 | 1345 |
| 1346 if (fh_nm == "@<anonymous>") | |
| 1347 { | |
| 1348 std::ostringstream buf; | |
| 1349 | |
| 1350 fh->print_raw (buf); | |
| 1351 | |
| 1352 retval = buf.str (); | |
| 1353 } | |
| 1354 else | |
| 1355 retval = fh_nm; | |
| 4933 | 1356 } |
| 4343 | 1357 else |
| 4933 | 1358 error ("func2str: expecting valid function handle as first argument"); |
| 4343 | 1359 } |
| 1360 else | |
| 5823 | 1361 print_usage (); |
| 4343 | 1362 |
| 1363 return retval; | |
| 1364 } | |
| 1365 | |
| 4933 | 1366 DEFUN (str2func, args, , |
| 4343 | 1367 "-*- texinfo -*-\n\ |
| 4933 | 1368 @deftypefn {Built-in Function} {} str2func (@var{fcn_name})\n\ |
| 1369 Return a function handle constructed from the string @var{fcn_name}.\n\ | |
| 1370 @end deftypefn") | |
| 4343 | 1371 { |
| 1372 octave_value retval; | |
| 1373 | |
| 4933 | 1374 if (args.length () == 1) |
| 4343 | 1375 { |
| 4933 | 1376 std::string nm = args(0).string_value (); |
| 4343 | 1377 |
| 4933 | 1378 if (! error_state) |
| 1379 retval = make_fcn_handle (nm); | |
| 4343 | 1380 else |
| 4933 | 1381 error ("str2func: expecting string as first argument"); |
| 4343 | 1382 } |
| 1383 else | |
| 5823 | 1384 print_usage (); |
| 4343 | 1385 |
| 1386 return retval; | |
| 1387 } | |
| 1388 | |
| 1389 /* | |
| 1390 ;;; Local Variables: *** | |
| 1391 ;;; mode: C++ *** | |
| 1392 ;;; End: *** | |
| 1393 */ |