Mercurial > octave
annotate src/pt-pr-code.cc @ 7715:5b4d278ec828
parse scripts completely before executing
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Wed, 16 Apr 2008 15:09:56 -0400 |
| parents | a1dbe9d80eee |
| children | 73c4516fae10 |
| rev | line source |
|---|---|
| 2123 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
| 4 2005, 2006, 2007 John W. Eaton | |
| 2123 | 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. | |
| 2123 | 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/>. | |
| 2123 | 21 |
| 22 */ | |
| 23 | |
| 24 #ifdef HAVE_CONFIG_H | |
| 25 #include <config.h> | |
| 26 #endif | |
| 27 | |
| 3665 | 28 #include <cctype> |
| 29 | |
| 3503 | 30 #include <iostream> |
| 2123 | 31 |
| 3665 | 32 #include "comment-list.h" |
| 2123 | 33 #include "error.h" |
| 2969 | 34 #include "ov-usr-fcn.h" |
| 2123 | 35 #include "pr-output.h" |
| 2988 | 36 #include "pt-all.h" |
| 2123 | 37 |
| 38 void | |
| 5861 | 39 tree_print_code::visit_anon_fcn_handle (tree_anon_fcn_handle& afh) |
| 40 { | |
| 41 indent (); | |
| 42 | |
| 43 print_parens (afh, "("); | |
| 44 | |
| 45 os << "@("; | |
| 46 | |
| 47 tree_parameter_list *param_list = afh.parameter_list (); | |
| 48 | |
| 49 if (param_list) | |
| 50 param_list->accept (*this); | |
| 51 | |
| 52 os << ") "; | |
| 53 | |
| 54 tree_statement_list *body = afh.body (); | |
| 55 | |
| 56 if (body) | |
| 57 body->accept (*this); | |
| 58 | |
| 59 print_parens (afh, ")"); | |
| 60 } | |
| 61 | |
| 62 void | |
| 2123 | 63 tree_print_code::visit_argument_list (tree_argument_list& lst) |
| 64 { | |
| 4219 | 65 tree_argument_list::iterator p = lst.begin (); |
| 2123 | 66 |
| 4219 | 67 while (p != lst.end ()) |
| 2123 | 68 { |
| 4219 | 69 tree_expression *elt = *p++; |
| 2123 | 70 |
| 71 if (elt) | |
| 72 { | |
| 73 elt->accept (*this); | |
| 74 | |
| 4219 | 75 if (p != lst.end ()) |
| 2123 | 76 os << ", "; |
| 77 } | |
| 78 } | |
| 79 } | |
| 80 | |
| 81 void | |
| 82 tree_print_code::visit_binary_expression (tree_binary_expression& expr) | |
| 83 { | |
| 84 indent (); | |
| 85 | |
| 2961 | 86 print_parens (expr, "("); |
| 2123 | 87 |
| 88 tree_expression *op1 = expr.lhs (); | |
| 89 | |
| 90 if (op1) | |
| 91 op1->accept (*this); | |
| 92 | |
| 93 os << " " << expr.oper () << " "; | |
| 94 | |
| 95 tree_expression *op2 = expr.rhs (); | |
| 96 | |
| 97 if (op2) | |
| 98 op2->accept (*this); | |
| 99 | |
| 2961 | 100 print_parens (expr, ")"); |
| 2123 | 101 } |
| 102 | |
| 103 void | |
| 4207 | 104 tree_print_code::visit_break_command (tree_break_command&) |
| 2123 | 105 { |
| 106 indent (); | |
| 107 | |
| 108 os << "break"; | |
| 109 } | |
| 110 | |
| 111 void | |
| 112 tree_print_code::visit_colon_expression (tree_colon_expression& expr) | |
| 113 { | |
| 114 indent (); | |
| 115 | |
| 2961 | 116 print_parens (expr, "("); |
| 2123 | 117 |
| 118 tree_expression *op1 = expr.base (); | |
| 119 | |
| 120 if (op1) | |
| 121 op1->accept (*this); | |
| 122 | |
| 123 // Stupid syntax. | |
| 124 | |
| 125 tree_expression *op3 = expr.increment (); | |
| 126 | |
| 127 if (op3) | |
| 128 { | |
| 129 os << ":"; | |
| 130 op3->accept (*this); | |
| 131 } | |
| 132 | |
| 133 tree_expression *op2 = expr.limit (); | |
| 134 | |
| 135 if (op2) | |
| 136 { | |
| 137 os << ":"; | |
| 138 op2->accept (*this); | |
| 139 } | |
| 140 | |
| 2961 | 141 print_parens (expr, ")"); |
| 2123 | 142 } |
| 143 | |
| 144 void | |
| 4207 | 145 tree_print_code::visit_continue_command (tree_continue_command&) |
| 2123 | 146 { |
| 147 indent (); | |
| 148 | |
| 149 os << "continue"; | |
| 150 } | |
| 151 | |
| 152 void | |
| 2846 | 153 tree_print_code::visit_decl_command (tree_decl_command& cmd) |
| 154 { | |
| 155 indent (); | |
| 156 | |
| 157 os << cmd.name () << " "; | |
| 158 | |
| 159 tree_decl_init_list *init_list = cmd.initializer_list (); | |
| 160 | |
| 161 if (init_list) | |
| 162 init_list->accept (*this); | |
| 163 } | |
| 164 | |
| 165 void | |
| 166 tree_print_code::visit_decl_elt (tree_decl_elt& cmd) | |
| 167 { | |
| 168 tree_identifier *id = cmd.ident (); | |
| 169 | |
| 170 if (id) | |
| 171 id->accept (*this); | |
| 172 | |
| 2969 | 173 tree_expression *expr = cmd.expression (); |
| 2846 | 174 |
| 2969 | 175 if (expr) |
| 176 { | |
| 177 os << " = "; | |
| 178 | |
| 179 expr->accept (*this); | |
| 180 } | |
| 2846 | 181 } |
| 182 | |
| 183 void | |
| 184 tree_print_code::visit_decl_init_list (tree_decl_init_list& lst) | |
| 185 { | |
| 4219 | 186 tree_decl_init_list::iterator p = lst.begin (); |
| 2846 | 187 |
| 4219 | 188 while (p != lst.end ()) |
| 2846 | 189 { |
| 4219 | 190 tree_decl_elt *elt = *p++; |
| 2846 | 191 |
| 192 if (elt) | |
| 193 { | |
| 194 elt->accept (*this); | |
| 195 | |
| 4219 | 196 if (p != lst.end ()) |
| 2846 | 197 os << ", "; |
| 198 } | |
| 199 } | |
| 200 } | |
| 201 | |
| 202 void | |
| 2969 | 203 tree_print_code::visit_simple_for_command (tree_simple_for_command& cmd) |
| 2123 | 204 { |
| 3665 | 205 print_comment_list (cmd.leading_comment ()); |
| 206 | |
| 2123 | 207 indent (); |
| 208 | |
| 209 os << "for "; | |
| 210 | |
| 2969 | 211 tree_expression *lhs = cmd.left_hand_side (); |
| 2123 | 212 |
| 2969 | 213 if (lhs) |
| 214 lhs->accept (*this); | |
| 2123 | 215 |
| 216 os << " = "; | |
| 217 | |
| 218 tree_expression *expr = cmd.control_expr (); | |
| 219 | |
| 220 if (expr) | |
| 221 expr->accept (*this); | |
| 222 | |
| 223 newline (); | |
| 224 | |
| 225 tree_statement_list *list = cmd.body (); | |
| 226 | |
| 227 if (list) | |
| 228 { | |
| 229 increment_indent_level (); | |
| 3665 | 230 |
| 2123 | 231 list->accept (*this); |
| 3665 | 232 |
| 2123 | 233 decrement_indent_level (); |
| 234 } | |
| 235 | |
| 3665 | 236 print_indented_comment (cmd.trailing_comment ()); |
| 237 | |
| 2123 | 238 indent (); |
| 239 | |
| 240 os << "endfor"; | |
| 241 } | |
| 242 | |
| 243 void | |
| 2969 | 244 tree_print_code::visit_complex_for_command (tree_complex_for_command& cmd) |
| 245 { | |
| 3665 | 246 print_comment_list (cmd.leading_comment ()); |
| 247 | |
| 2969 | 248 indent (); |
| 249 | |
| 250 os << "for ["; | |
| 4676 | 251 nesting.push ('['); |
| 2969 | 252 |
| 253 tree_argument_list *lhs = cmd.left_hand_side (); | |
| 254 | |
| 255 if (lhs) | |
| 256 lhs->accept (*this); | |
| 257 | |
| 4676 | 258 nesting.pop (); |
| 2969 | 259 os << "] = "; |
| 260 | |
| 261 tree_expression *expr = cmd.control_expr (); | |
| 262 | |
| 263 if (expr) | |
| 264 expr->accept (*this); | |
| 265 | |
| 266 newline (); | |
| 267 | |
| 268 tree_statement_list *list = cmd.body (); | |
| 269 | |
| 270 if (list) | |
| 271 { | |
| 272 increment_indent_level (); | |
| 3665 | 273 |
| 2969 | 274 list->accept (*this); |
| 3665 | 275 |
| 2969 | 276 decrement_indent_level (); |
| 277 } | |
| 278 | |
| 3665 | 279 print_indented_comment (cmd.trailing_comment ()); |
| 280 | |
| 2969 | 281 indent (); |
| 282 | |
| 283 os << "endfor"; | |
| 284 } | |
| 285 | |
| 286 void | |
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287 tree_print_code::visit_octave_user_script (octave_user_script& fcn) |
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288 { |
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289 reset (); |
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290 |
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291 tree_statement_list *cmd_list = fcn.body (); |
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292 |
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293 if (cmd_list) |
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294 cmd_list->accept (*this); |
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295 } |
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296 |
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297 void |
| 2891 | 298 tree_print_code::visit_octave_user_function (octave_user_function& fcn) |
| 2123 | 299 { |
| 300 reset (); | |
| 301 | |
| 2891 | 302 visit_octave_user_function_header (fcn); |
| 2123 | 303 |
| 304 tree_statement_list *cmd_list = fcn.body (); | |
| 305 | |
| 306 if (cmd_list) | |
| 307 { | |
| 308 increment_indent_level (); | |
| 3665 | 309 |
| 2123 | 310 cmd_list->accept (*this); |
| 3665 | 311 |
| 2123 | 312 decrement_indent_level (); |
| 313 } | |
| 314 | |
| 2891 | 315 visit_octave_user_function_trailer (fcn); |
| 2123 | 316 } |
| 317 | |
| 318 void | |
| 2891 | 319 tree_print_code::visit_octave_user_function_header (octave_user_function& fcn) |
| 2123 | 320 { |
| 3665 | 321 octave_comment_list *leading_comment = fcn.leading_comment (); |
| 322 | |
| 323 if (leading_comment) | |
| 324 { | |
| 325 print_comment_list (leading_comment); | |
| 326 newline (); | |
| 327 } | |
| 328 | |
| 2123 | 329 indent (); |
| 330 | |
| 331 os << "function "; | |
| 332 | |
| 333 tree_parameter_list *ret_list = fcn.return_list (); | |
| 334 | |
| 335 if (ret_list) | |
| 336 { | |
| 337 bool takes_var_return = fcn.takes_var_return (); | |
| 338 | |
| 339 int len = ret_list->length (); | |
| 340 | |
| 341 if (len > 1 || takes_var_return) | |
| 4676 | 342 { |
| 343 os << "["; | |
| 344 nesting.push ('['); | |
| 345 } | |
| 2123 | 346 |
| 347 ret_list->accept (*this); | |
| 348 | |
| 349 if (takes_var_return) | |
| 350 { | |
| 351 if (len > 0) | |
| 352 os << ", "; | |
| 353 | |
| 5848 | 354 os << "varargout"; |
| 2123 | 355 } |
| 356 | |
| 357 if (len > 1 || takes_var_return) | |
| 4676 | 358 { |
| 359 nesting.pop (); | |
| 360 os << "]"; | |
| 361 } | |
| 2123 | 362 |
| 363 os << " = "; | |
| 364 } | |
| 365 | |
| 4748 | 366 std::string fcn_name = fcn.name (); |
| 2123 | 367 |
| 3523 | 368 os << (fcn_name.empty () ? std::string ("(empty)") : fcn_name) << " "; |
| 2123 | 369 |
| 370 tree_parameter_list *param_list = fcn.parameter_list (); | |
| 371 | |
| 372 if (param_list) | |
| 373 { | |
| 374 bool takes_varargs = fcn.takes_varargs (); | |
| 375 | |
| 376 int len = param_list->length (); | |
| 377 | |
| 378 if (len > 0 || takes_varargs) | |
| 4676 | 379 { |
| 380 os << "("; | |
| 381 nesting.push ('('); | |
| 382 } | |
| 2123 | 383 |
| 384 param_list->accept (*this); | |
| 385 | |
| 386 if (takes_varargs) | |
| 387 { | |
| 388 if (len > 0) | |
| 389 os << ", "; | |
| 390 | |
| 5848 | 391 os << "varargin"; |
| 2123 | 392 } |
| 393 | |
| 394 if (len > 0 || takes_varargs) | |
| 395 { | |
| 4676 | 396 nesting.pop (); |
| 2123 | 397 os << ")"; |
| 398 newline (); | |
| 399 } | |
| 400 } | |
| 401 else | |
| 402 { | |
| 403 os << "()"; | |
| 404 newline (); | |
| 405 } | |
| 406 } | |
| 407 | |
| 408 void | |
| 3665 | 409 tree_print_code::visit_octave_user_function_trailer (octave_user_function& fcn) |
| 2123 | 410 { |
| 3665 | 411 print_indented_comment (fcn.trailing_comment ()); |
| 412 | |
| 2123 | 413 indent (); |
| 414 | |
| 415 os << "endfunction"; | |
| 416 | |
| 417 newline (); | |
| 418 } | |
| 419 | |
| 420 void | |
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7715
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parents:
7017
diff
changeset
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421 tree_print_code::visit_function_def (tree_function_def& fdef) |
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422 { |
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423 indent (); |
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424 |
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425 octave_function *fcn = fdef.function (); |
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426 |
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427 if (fcn) |
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428 fcn->accept (*this); |
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429 } |
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430 |
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parents:
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431 void |
| 2123 | 432 tree_print_code::visit_identifier (tree_identifier& id) |
| 433 { | |
| 434 indent (); | |
| 435 | |
| 2961 | 436 print_parens (id, "("); |
| 2123 | 437 |
| 3523 | 438 std::string nm = id.name (); |
| 439 os << (nm.empty () ? std::string ("(empty)") : nm); | |
| 2123 | 440 |
| 2961 | 441 print_parens (id, ")"); |
| 2123 | 442 } |
| 443 | |
| 444 void | |
| 445 tree_print_code::visit_if_clause (tree_if_clause& cmd) | |
| 446 { | |
| 447 tree_expression *expr = cmd.condition (); | |
| 448 | |
| 449 if (expr) | |
| 450 expr->accept (*this); | |
| 451 | |
| 452 newline (); | |
| 453 | |
| 454 tree_statement_list *list = cmd.commands (); | |
| 455 | |
| 456 if (list) | |
| 457 { | |
| 3665 | 458 increment_indent_level (); |
| 459 | |
| 2123 | 460 list->accept (*this); |
| 461 | |
| 462 decrement_indent_level (); | |
| 463 } | |
| 464 } | |
| 465 | |
| 466 void | |
| 467 tree_print_code::visit_if_command (tree_if_command& cmd) | |
| 468 { | |
| 3665 | 469 print_comment_list (cmd.leading_comment ()); |
| 470 | |
| 2123 | 471 indent (); |
| 472 | |
| 473 os << "if "; | |
| 474 | |
| 475 tree_if_command_list *list = cmd.cmd_list (); | |
| 476 | |
| 477 if (list) | |
| 478 list->accept (*this); | |
| 479 | |
| 3665 | 480 print_indented_comment (cmd.trailing_comment ()); |
| 481 | |
| 2123 | 482 indent (); |
| 483 | |
| 484 os << "endif"; | |
| 485 } | |
| 486 | |
| 487 void | |
| 488 tree_print_code::visit_if_command_list (tree_if_command_list& lst) | |
| 489 { | |
| 4219 | 490 tree_if_command_list::iterator p = lst.begin (); |
| 2123 | 491 |
| 492 bool first_elt = true; | |
| 493 | |
| 4219 | 494 while (p != lst.end ()) |
| 2123 | 495 { |
| 4219 | 496 tree_if_clause *elt = *p++; |
| 2123 | 497 |
| 498 if (elt) | |
| 499 { | |
| 500 if (! first_elt) | |
| 501 { | |
| 3665 | 502 print_indented_comment (elt->leading_comment ()); |
| 503 | |
| 2123 | 504 indent (); |
| 505 | |
| 506 if (elt->is_else_clause ()) | |
| 507 os << "else"; | |
| 508 else | |
| 509 os << "elseif "; | |
| 510 } | |
| 511 | |
| 512 elt->accept (*this); | |
| 513 } | |
| 514 | |
| 515 first_elt = false; | |
| 516 } | |
| 517 } | |
| 518 | |
| 519 void | |
| 520 tree_print_code::visit_index_expression (tree_index_expression& expr) | |
| 521 { | |
| 522 indent (); | |
| 523 | |
| 2961 | 524 print_parens (expr, "("); |
| 2123 | 525 |
| 3665 | 526 bool expr_has_parens = false; |
| 527 | |
| 3010 | 528 tree_expression *e = expr.expression (); |
| 2123 | 529 |
| 2969 | 530 if (e) |
| 3665 | 531 { |
| 532 e->accept (*this); | |
| 533 | |
| 534 expr_has_parens = e->is_postfix_indexed (); | |
| 535 } | |
| 2123 | 536 |
| 4219 | 537 std::list<tree_argument_list *> arg_lists = expr.arg_lists (); |
| 3933 | 538 std::string type_tags = expr.type_tags (); |
| 4219 | 539 std::list<string_vector> arg_names = expr.arg_names (); |
| 2123 | 540 |
| 3933 | 541 int n = type_tags.length (); |
| 542 | |
| 4219 | 543 std::list<tree_argument_list *>::iterator p_arg_lists = arg_lists.begin (); |
| 544 std::list<string_vector>::iterator p_arg_names = arg_names.begin (); | |
| 3933 | 545 |
| 546 for (int i = 0; i < n; i++) | |
| 2123 | 547 { |
| 3933 | 548 switch (type_tags[i]) |
| 549 { | |
| 550 case '(': | |
| 551 { | |
| 4676 | 552 char nc = nesting.top (); |
| 553 if ((nc == '[' || nc == '{') && expr.paren_count () == 0) | |
| 554 os << "("; | |
| 555 else | |
| 556 os << " ("; | |
| 557 nesting.push ('('); | |
| 558 | |
| 4219 | 559 tree_argument_list *l = *p_arg_lists; |
| 3933 | 560 if (l) |
| 561 l->accept (*this); | |
| 4676 | 562 |
| 563 nesting.pop (); | |
| 3933 | 564 os << ")"; |
| 565 } | |
| 566 break; | |
| 567 | |
| 568 case '{': | |
| 569 { | |
| 4676 | 570 char nc = nesting.top (); |
| 571 if ((nc == '[' || nc == '{') && expr.paren_count () == 0) | |
| 572 os << "{"; | |
| 573 else | |
| 574 os << " {"; | |
| 575 // We only care about whitespace inside [] and {} when we | |
| 576 // are defining matrix and cell objects, not when indexing. | |
| 577 nesting.push ('('); | |
| 578 | |
| 4219 | 579 tree_argument_list *l = *p_arg_lists; |
| 3933 | 580 if (l) |
| 581 l->accept (*this); | |
| 4676 | 582 |
| 583 nesting.pop (); | |
| 3933 | 584 os << "}"; |
| 585 } | |
| 586 break; | |
| 587 | |
| 588 case '.': | |
| 589 { | |
| 4219 | 590 string_vector nm = *p_arg_names; |
| 3933 | 591 assert (nm.length () == 1); |
| 592 os << "." << nm(0); | |
| 593 } | |
| 594 break; | |
| 595 | |
| 596 default: | |
| 597 panic_impossible (); | |
| 598 } | |
| 599 | |
| 4219 | 600 p_arg_lists++; |
| 601 p_arg_names++; | |
| 3930 | 602 } |
| 2123 | 603 |
| 2961 | 604 print_parens (expr, ")"); |
| 2123 | 605 } |
| 606 | |
| 607 void | |
| 608 tree_print_code::visit_matrix (tree_matrix& lst) | |
| 609 { | |
| 610 indent (); | |
| 611 | |
| 2961 | 612 print_parens (lst, "("); |
| 2123 | 613 |
| 614 os << "["; | |
| 4676 | 615 nesting.push ('['); |
| 2123 | 616 |
| 4219 | 617 tree_matrix::iterator p = lst.begin (); |
| 2123 | 618 |
| 4219 | 619 while (p != lst.end ()) |
| 2123 | 620 { |
| 4219 | 621 tree_argument_list *elt = *p++; |
| 2123 | 622 |
| 623 if (elt) | |
| 624 { | |
| 625 elt->accept (*this); | |
| 626 | |
| 4219 | 627 if (p != lst.end ()) |
| 2123 | 628 os << "; "; |
| 629 } | |
| 630 } | |
| 631 | |
| 4676 | 632 nesting.pop (); |
| 2123 | 633 os << "]"; |
| 634 | |
| 2961 | 635 print_parens (lst, ")"); |
| 2123 | 636 } |
| 637 | |
| 638 void | |
| 3351 | 639 tree_print_code::visit_cell (tree_cell& lst) |
| 640 { | |
| 641 indent (); | |
| 642 | |
| 643 print_parens (lst, "("); | |
| 644 | |
| 645 os << "{"; | |
| 4676 | 646 nesting.push ('{'); |
| 3351 | 647 |
| 4219 | 648 tree_cell::iterator p = lst.begin (); |
| 3351 | 649 |
| 4219 | 650 while (p != lst.end ()) |
| 3351 | 651 { |
| 4219 | 652 tree_argument_list *elt = *p++; |
| 3351 | 653 |
| 654 if (elt) | |
| 655 { | |
| 656 elt->accept (*this); | |
| 657 | |
| 4219 | 658 if (p != lst.end ()) |
| 3351 | 659 os << "; "; |
| 660 } | |
| 661 } | |
| 662 | |
| 4676 | 663 nesting.pop (); |
| 3351 | 664 os << "}"; |
| 665 | |
| 666 print_parens (lst, ")"); | |
| 667 } | |
| 668 | |
| 669 void | |
| 2969 | 670 tree_print_code::visit_multi_assignment (tree_multi_assignment& expr) |
| 2123 | 671 { |
| 672 indent (); | |
| 673 | |
| 2961 | 674 print_parens (expr, "("); |
| 2123 | 675 |
| 2969 | 676 tree_argument_list *lhs = expr.left_hand_side (); |
| 2123 | 677 |
| 678 if (lhs) | |
| 679 { | |
| 680 int len = lhs->length (); | |
| 681 | |
| 682 if (len > 1) | |
| 4676 | 683 { |
| 684 os << "["; | |
| 685 nesting.push ('['); | |
| 686 } | |
| 2123 | 687 |
| 688 lhs->accept (*this); | |
| 689 | |
| 690 if (len > 1) | |
| 4676 | 691 { |
| 692 nesting.pop (); | |
| 693 os << "]"; | |
| 694 } | |
| 2123 | 695 } |
| 696 | |
| 3208 | 697 os << " " << expr.oper () << " "; |
| 2123 | 698 |
| 2969 | 699 tree_expression *rhs = expr.right_hand_side (); |
| 2123 | 700 |
| 701 if (rhs) | |
| 702 rhs->accept (*this); | |
| 703 | |
| 2961 | 704 print_parens (expr, ")"); |
| 2123 | 705 } |
| 706 | |
| 707 void | |
| 2620 | 708 tree_print_code::visit_no_op_command (tree_no_op_command& cmd) |
| 709 { | |
| 710 indent (); | |
| 711 | |
| 712 os << cmd.original_command (); | |
| 713 } | |
| 714 | |
| 715 void | |
| 2372 | 716 tree_print_code::visit_constant (tree_constant& val) |
| 2123 | 717 { |
| 718 indent (); | |
| 719 | |
| 2961 | 720 print_parens (val, "("); |
| 2123 | 721 |
| 2942 | 722 val.print_raw (os, true, print_original_text); |
| 2123 | 723 |
| 2961 | 724 print_parens (val, ")"); |
| 2123 | 725 } |
| 726 | |
| 727 void | |
| 4342 | 728 tree_print_code::visit_fcn_handle (tree_fcn_handle& fh) |
| 729 { | |
| 730 indent (); | |
| 731 | |
| 732 print_parens (fh, "("); | |
| 733 | |
| 734 fh.print_raw (os, true, print_original_text); | |
| 735 | |
| 736 print_parens (fh, ")"); | |
| 737 } | |
| 738 | |
| 739 void | |
| 2123 | 740 tree_print_code::visit_parameter_list (tree_parameter_list& lst) |
| 741 { | |
| 4219 | 742 tree_parameter_list::iterator p = lst.begin (); |
| 2123 | 743 |
| 4219 | 744 while (p != lst.end ()) |
| 2123 | 745 { |
| 6215 | 746 tree_decl_elt *elt = *p++; |
| 2123 | 747 |
| 748 if (elt) | |
| 749 { | |
| 750 elt->accept (*this); | |
| 751 | |
| 4219 | 752 if (p != lst.end ()) |
| 2123 | 753 os << ", "; |
| 754 } | |
| 755 } | |
| 756 } | |
| 757 | |
| 758 void | |
| 759 tree_print_code::visit_postfix_expression (tree_postfix_expression& expr) | |
| 760 { | |
| 761 indent (); | |
| 762 | |
| 2961 | 763 print_parens (expr, "("); |
| 2123 | 764 |
| 2960 | 765 tree_expression *e = expr.operand (); |
| 2123 | 766 |
| 2960 | 767 if (e) |
| 768 e->accept (*this); | |
| 2123 | 769 |
| 770 os << expr.oper (); | |
| 771 | |
| 2961 | 772 print_parens (expr, ")"); |
| 2123 | 773 } |
| 774 | |
| 775 void | |
| 776 tree_print_code::visit_prefix_expression (tree_prefix_expression& expr) | |
| 777 { | |
| 778 indent (); | |
| 779 | |
| 2961 | 780 print_parens (expr, "("); |
| 2123 | 781 |
| 782 os << expr.oper (); | |
| 783 | |
| 2960 | 784 tree_expression *e = expr.operand (); |
| 2123 | 785 |
| 2960 | 786 if (e) |
| 787 e->accept (*this); | |
| 2123 | 788 |
| 2961 | 789 print_parens (expr, ")"); |
| 2123 | 790 } |
| 791 | |
| 792 void | |
| 4207 | 793 tree_print_code::visit_return_command (tree_return_command&) |
| 2123 | 794 { |
| 795 indent (); | |
| 796 | |
| 797 os << "return"; | |
| 798 } | |
| 799 | |
| 800 void | |
| 801 tree_print_code::visit_return_list (tree_return_list& lst) | |
| 802 { | |
| 4219 | 803 tree_return_list::iterator p = lst.begin (); |
| 2123 | 804 |
| 4219 | 805 while (p != lst.end ()) |
| 2123 | 806 { |
| 4219 | 807 tree_index_expression *elt = *p++; |
| 2123 | 808 |
| 809 if (elt) | |
| 810 { | |
| 811 elt->accept (*this); | |
| 812 | |
| 4219 | 813 if (p != lst.end ()) |
| 2123 | 814 os << ", "; |
| 815 } | |
| 816 } | |
| 817 } | |
| 818 | |
| 819 void | |
| 2969 | 820 tree_print_code::visit_simple_assignment (tree_simple_assignment& expr) |
| 2123 | 821 { |
| 822 indent (); | |
| 823 | |
| 2961 | 824 print_parens (expr, "("); |
| 2123 | 825 |
| 2969 | 826 tree_expression *lhs = expr.left_hand_side (); |
| 2123 | 827 |
| 2969 | 828 if (lhs) |
| 829 lhs->accept (*this); | |
| 2123 | 830 |
| 2969 | 831 os << " " << expr.oper () << " "; |
| 2123 | 832 |
| 833 tree_expression *rhs = expr.right_hand_side (); | |
| 834 | |
| 835 if (rhs) | |
| 836 rhs->accept (*this); | |
| 837 | |
| 2961 | 838 print_parens (expr, ")"); |
| 2123 | 839 } |
| 840 | |
| 841 void | |
| 842 tree_print_code::visit_statement (tree_statement& stmt) | |
| 843 { | |
| 3665 | 844 print_comment_list (stmt.comment_text ()); |
| 845 | |
| 2123 | 846 tree_command *cmd = stmt.command (); |
| 847 | |
| 848 if (cmd) | |
| 849 { | |
| 850 cmd->accept (*this); | |
| 851 | |
| 852 if (! stmt.print_result ()) | |
| 4980 | 853 { |
| 854 os << ";"; | |
| 855 newline (" "); | |
| 856 } | |
| 857 else | |
| 858 newline (); | |
| 2123 | 859 } |
| 860 else | |
| 861 { | |
| 862 tree_expression *expr = stmt.expression (); | |
| 863 | |
| 864 if (expr) | |
| 865 { | |
| 866 expr->accept (*this); | |
| 867 | |
| 868 if (! stmt.print_result ()) | |
| 4980 | 869 { |
| 870 os << ";"; | |
| 871 newline (" "); | |
| 872 } | |
| 873 else | |
| 874 newline (); | |
| 2123 | 875 } |
| 876 } | |
| 877 } | |
| 878 | |
| 879 void | |
| 880 tree_print_code::visit_statement_list (tree_statement_list& lst) | |
| 881 { | |
| 4219 | 882 for (tree_statement_list::iterator p = lst.begin (); p != lst.end (); p++) |
| 2123 | 883 { |
| 4219 | 884 tree_statement *elt = *p; |
| 2123 | 885 |
| 886 if (elt) | |
| 887 elt->accept (*this); | |
| 888 } | |
| 889 } | |
| 890 | |
| 891 void | |
| 2846 | 892 tree_print_code::visit_switch_case (tree_switch_case& cs) |
| 893 { | |
| 3665 | 894 print_comment_list (cs.leading_comment ()); |
| 895 | |
| 2846 | 896 indent (); |
| 897 | |
| 898 if (cs.is_default_case ()) | |
| 899 os << "otherwise"; | |
| 900 else | |
| 901 os << "case "; | |
| 902 | |
| 903 tree_expression *label = cs.case_label (); | |
| 904 | |
| 905 if (label) | |
| 906 label->accept (*this); | |
| 907 | |
| 908 newline (); | |
| 909 | |
| 910 tree_statement_list *list = cs.commands (); | |
| 911 | |
| 912 if (list) | |
| 913 { | |
| 3665 | 914 increment_indent_level (); |
| 915 | |
| 2846 | 916 list->accept (*this); |
| 917 | |
| 3665 | 918 newline (); |
| 919 | |
| 2846 | 920 decrement_indent_level (); |
| 921 } | |
| 922 } | |
| 923 | |
| 924 void | |
| 925 tree_print_code::visit_switch_case_list (tree_switch_case_list& lst) | |
| 926 { | |
| 4219 | 927 tree_switch_case_list::iterator p = lst.begin (); |
| 2846 | 928 |
| 4219 | 929 while (p != lst.end ()) |
| 2846 | 930 { |
| 4219 | 931 tree_switch_case *elt = *p++; |
| 2846 | 932 |
| 933 if (elt) | |
| 934 elt->accept (*this); | |
| 935 } | |
| 936 } | |
| 937 | |
| 938 void | |
| 939 tree_print_code::visit_switch_command (tree_switch_command& cmd) | |
| 940 { | |
| 3665 | 941 print_comment_list (cmd.leading_comment ()); |
| 942 | |
| 2846 | 943 indent (); |
| 944 | |
| 945 os << "switch "; | |
| 946 | |
| 947 tree_expression *expr = cmd.switch_value (); | |
| 948 | |
| 949 if (expr) | |
| 950 expr->accept (*this); | |
| 951 | |
| 952 newline (); | |
| 953 | |
| 954 tree_switch_case_list *list = cmd.case_list (); | |
| 955 | |
| 956 if (list) | |
| 3665 | 957 { |
| 958 increment_indent_level (); | |
| 959 | |
| 960 list->accept (*this); | |
| 961 | |
| 962 decrement_indent_level (); | |
| 963 } | |
| 964 | |
| 965 print_indented_comment (cmd.leading_comment ()); | |
| 2846 | 966 |
| 967 indent (); | |
| 968 | |
| 969 os << "endswitch"; | |
| 970 } | |
| 971 | |
| 972 void | |
| 2123 | 973 tree_print_code::visit_try_catch_command (tree_try_catch_command& cmd) |
| 974 { | |
| 3665 | 975 print_comment_list (cmd.leading_comment ()); |
| 976 | |
| 2123 | 977 indent (); |
| 978 | |
| 3665 | 979 os << "try"; |
| 2123 | 980 |
| 981 newline (); | |
| 982 | |
| 983 tree_statement_list *try_code = cmd.body (); | |
| 984 | |
| 985 if (try_code) | |
| 986 { | |
| 987 increment_indent_level (); | |
| 3665 | 988 |
| 2123 | 989 try_code->accept (*this); |
| 3665 | 990 |
| 2123 | 991 decrement_indent_level (); |
| 992 } | |
| 993 | |
| 3665 | 994 print_indented_comment (cmd.middle_comment ()); |
| 995 | |
| 2123 | 996 indent (); |
| 997 | |
| 998 os << "catch"; | |
| 999 | |
| 1000 newline (); | |
| 1001 | |
| 1002 tree_statement_list *catch_code = cmd.cleanup (); | |
| 1003 | |
| 1004 if (catch_code) | |
| 1005 { | |
| 1006 increment_indent_level (); | |
| 3665 | 1007 |
| 2123 | 1008 catch_code->accept (*this); |
| 3665 | 1009 |
| 2123 | 1010 decrement_indent_level (); |
| 1011 } | |
| 1012 | |
| 3665 | 1013 print_indented_comment (cmd.trailing_comment ()); |
| 1014 | |
| 2123 | 1015 indent (); |
| 1016 | |
| 1017 os << "end_try_catch"; | |
| 1018 } | |
| 1019 | |
| 1020 void | |
| 1021 tree_print_code::visit_unwind_protect_command | |
| 1022 (tree_unwind_protect_command& cmd) | |
| 1023 { | |
| 3665 | 1024 print_comment_list (cmd.leading_comment ()); |
| 1025 | |
| 2123 | 1026 indent (); |
| 1027 | |
| 1028 os << "unwind_protect"; | |
| 1029 | |
| 1030 newline (); | |
| 1031 | |
| 1032 tree_statement_list *unwind_protect_code = cmd.body (); | |
| 1033 | |
| 1034 if (unwind_protect_code) | |
| 1035 { | |
| 1036 increment_indent_level (); | |
| 3665 | 1037 |
| 2123 | 1038 unwind_protect_code->accept (*this); |
| 3665 | 1039 |
| 2123 | 1040 decrement_indent_level (); |
| 1041 } | |
| 1042 | |
| 3665 | 1043 print_indented_comment (cmd.middle_comment ()); |
| 1044 | |
| 2123 | 1045 indent (); |
| 1046 | |
| 3478 | 1047 os << "unwind_protect_cleanup"; |
| 2123 | 1048 |
| 1049 newline (); | |
| 1050 | |
| 1051 tree_statement_list *cleanup_code = cmd.cleanup (); | |
| 1052 | |
| 1053 if (cleanup_code) | |
| 1054 { | |
| 1055 increment_indent_level (); | |
| 3665 | 1056 |
| 2123 | 1057 cleanup_code->accept (*this); |
| 3665 | 1058 |
| 2123 | 1059 decrement_indent_level (); |
| 1060 } | |
| 1061 | |
| 3665 | 1062 print_indented_comment (cmd.trailing_comment ()); |
| 1063 | |
| 2123 | 1064 indent (); |
| 1065 | |
| 1066 os << "end_unwind_protect"; | |
| 1067 } | |
| 1068 | |
| 1069 void | |
| 1070 tree_print_code::visit_while_command (tree_while_command& cmd) | |
| 1071 { | |
| 3665 | 1072 print_comment_list (cmd.leading_comment ()); |
| 1073 | |
| 2123 | 1074 indent (); |
| 1075 | |
| 1076 os << "while "; | |
| 1077 | |
| 1078 tree_expression *expr = cmd.condition (); | |
| 1079 | |
| 1080 if (expr) | |
| 1081 expr->accept (*this); | |
| 1082 | |
| 1083 newline (); | |
| 1084 | |
| 1085 tree_statement_list *list = cmd.body (); | |
| 1086 | |
| 1087 if (list) | |
| 1088 { | |
| 1089 increment_indent_level (); | |
| 3665 | 1090 |
| 2123 | 1091 list->accept (*this); |
| 3665 | 1092 |
| 2123 | 1093 decrement_indent_level (); |
| 1094 } | |
| 1095 | |
| 3665 | 1096 print_indented_comment (cmd.trailing_comment ()); |
| 1097 | |
| 2123 | 1098 indent (); |
| 1099 | |
| 1100 os << "endwhile"; | |
| 1101 } | |
| 1102 | |
| 3484 | 1103 void |
| 1104 tree_print_code::visit_do_until_command (tree_do_until_command& cmd) | |
| 1105 { | |
| 3665 | 1106 print_comment_list (cmd.leading_comment ()); |
| 1107 | |
| 3484 | 1108 indent (); |
| 1109 | |
| 1110 os << "do"; | |
| 1111 | |
| 1112 newline (); | |
| 1113 | |
| 1114 tree_statement_list *list = cmd.body (); | |
| 1115 | |
| 1116 if (list) | |
| 1117 { | |
| 1118 increment_indent_level (); | |
| 3665 | 1119 |
| 3484 | 1120 list->accept (*this); |
| 3665 | 1121 |
| 3484 | 1122 decrement_indent_level (); |
| 1123 } | |
| 1124 | |
| 3665 | 1125 print_indented_comment (cmd.trailing_comment ()); |
| 1126 | |
| 3484 | 1127 indent (); |
| 1128 | |
| 1129 os << "until"; | |
| 1130 | |
| 1131 tree_expression *expr = cmd.condition (); | |
| 1132 | |
| 1133 if (expr) | |
| 1134 expr->accept (*this); | |
| 1135 | |
| 1136 newline (); | |
| 1137 } | |
| 1138 | |
| 2123 | 1139 // Each print_code() function should call this before printing |
| 1140 // anything. | |
| 1141 // | |
| 1142 // This doesn't need to be fast, but isn't there a better way? | |
| 1143 | |
| 1144 void | |
| 1145 tree_print_code::indent (void) | |
| 1146 { | |
| 1147 assert (curr_print_indent_level >= 0); | |
| 2900 | 1148 |
| 4980 | 1149 if (printing_newlines) |
| 1150 { | |
| 1151 if (beginning_of_line) | |
| 1152 { | |
| 1153 os << prefix; | |
| 2900 | 1154 |
| 4980 | 1155 for (int i = 0; i < curr_print_indent_level; i++) |
| 1156 os << " "; | |
| 1157 | |
| 1158 beginning_of_line = false; | |
| 1159 } | |
| 2123 | 1160 } |
| 1161 } | |
| 1162 | |
| 1163 // All print_code() functions should use this to print new lines. | |
| 1164 | |
| 1165 void | |
| 4980 | 1166 tree_print_code::newline (const char *alt_txt) |
| 2123 | 1167 { |
| 4980 | 1168 os << (printing_newlines ? "\n" : alt_txt); |
| 2123 | 1169 |
| 1170 beginning_of_line = true; | |
| 1171 } | |
| 1172 | |
| 1173 // For ressetting print_code state. | |
| 1174 | |
| 1175 void | |
| 1176 tree_print_code::reset (void) | |
| 1177 { | |
| 1178 beginning_of_line = true; | |
| 1179 curr_print_indent_level = 0; | |
| 4676 | 1180 while (nesting.top () != 'n') |
| 1181 nesting.pop (); | |
| 2123 | 1182 } |
| 1183 | |
| 2961 | 1184 void |
| 1185 tree_print_code::print_parens (const tree_expression& expr, const char *txt) | |
| 1186 { | |
| 1187 int n = expr.paren_count (); | |
| 1188 | |
| 1189 for (int i = 0; i < n; i++) | |
| 1190 os << txt; | |
| 1191 } | |
| 1192 | |
| 3665 | 1193 void |
| 1194 tree_print_code::print_comment_elt (const octave_comment_elt& elt) | |
| 1195 { | |
| 1196 bool printed_something = false; | |
| 1197 | |
| 1198 bool prev_char_was_newline = false; | |
| 1199 | |
| 3769 | 1200 std::string comment = elt.text (); |
| 3665 | 1201 |
| 1202 size_t len = comment.length (); | |
| 1203 | |
| 1204 size_t i = 0; | |
| 1205 | |
| 1206 while (i < len && comment[i++] == '\n') | |
| 1207 ; /* Skip leading new lines. */ | |
| 1208 i--; | |
| 1209 | |
| 1210 while (i < len) | |
| 1211 { | |
| 1212 char c = comment[i++]; | |
| 1213 | |
| 1214 if (c == '\n') | |
| 1215 { | |
| 1216 if (prev_char_was_newline) | |
| 1217 os << "##"; | |
| 1218 | |
| 1219 newline (); | |
| 1220 | |
| 1221 prev_char_was_newline = true; | |
| 1222 } | |
| 1223 else | |
| 1224 { | |
| 1225 if (beginning_of_line) | |
| 1226 { | |
| 1227 printed_something = true; | |
| 1228 | |
| 1229 indent (); | |
| 1230 | |
| 1231 os << "##"; | |
| 1232 | |
| 1233 if (! (isspace (c) || c == '!')) | |
| 1234 os << " "; | |
| 1235 } | |
| 1236 | |
| 5760 | 1237 os << static_cast<char> (c); |
| 3665 | 1238 |
| 1239 prev_char_was_newline = false; | |
| 1240 } | |
| 1241 } | |
| 1242 | |
| 1243 if (printed_something && ! beginning_of_line) | |
| 1244 newline (); | |
| 1245 } | |
| 1246 | |
| 1247 void | |
| 1248 tree_print_code::print_comment_list (octave_comment_list *comment_list) | |
| 1249 { | |
| 1250 if (comment_list) | |
| 1251 { | |
| 4219 | 1252 octave_comment_list::iterator p = comment_list->begin (); |
| 3665 | 1253 |
| 4219 | 1254 while (p != comment_list->end ()) |
| 3665 | 1255 { |
| 4219 | 1256 octave_comment_elt elt = *p++; |
| 3665 | 1257 |
| 1258 print_comment_elt (elt); | |
| 1259 | |
| 4219 | 1260 if (p != comment_list->end ()) |
| 3665 | 1261 newline (); |
| 1262 } | |
| 1263 } | |
| 1264 } | |
| 1265 | |
| 1266 void | |
| 1267 tree_print_code::print_indented_comment (octave_comment_list *comment_list) | |
| 1268 { | |
| 1269 increment_indent_level (); | |
| 1270 | |
| 1271 print_comment_list (comment_list); | |
| 1272 | |
| 1273 decrement_indent_level (); | |
| 1274 } | |
| 1275 | |
| 2123 | 1276 /* |
| 1277 ;;; Local Variables: *** | |
| 1278 ;;; mode: C++ *** | |
| 1279 ;;; End: *** | |
| 1280 */ |