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c906108c SS |
1 | /* Support for printing C and C++ types for GDB, the GNU debugger. |
2 | Copyright 1986, 1988, 1989, 1991, 1993, 1994, 1995, 1996, 1998, 1999 | |
3 | Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | #include "defs.h" | |
22 | #include "obstack.h" | |
23 | #include "bfd.h" /* Binary File Description */ | |
24 | #include "symtab.h" | |
25 | #include "gdbtypes.h" | |
26 | #include "expression.h" | |
27 | #include "value.h" | |
28 | #include "gdbcore.h" | |
29 | #include "target.h" | |
30 | #include "command.h" | |
31 | #include "gdbcmd.h" | |
32 | #include "language.h" | |
33 | #include "demangle.h" | |
34 | #include "c-lang.h" | |
35 | #include "typeprint.h" | |
36 | ||
37 | #include "gdb_string.h" | |
38 | #include <errno.h> | |
39 | #include <ctype.h> | |
40 | ||
41 | /* Flag indicating target was compiled by HP compiler */ | |
42 | extern int hp_som_som_object_present; | |
43 | ||
44 | static void | |
45 | c_type_print_args PARAMS ((struct type *, GDB_FILE *)); | |
46 | ||
47 | static void | |
48 | cp_type_print_derivation_info PARAMS ((GDB_FILE *, struct type *)); | |
49 | ||
50 | void | |
51 | c_type_print_varspec_prefix PARAMS ((struct type *, GDB_FILE *, int, int)); | |
52 | ||
53 | static void | |
54 | c_type_print_cv_qualifier PARAMS ((struct type *, GDB_FILE *, int, int)); | |
55 | ||
56 | ||
57 | \f | |
58 | /* Print a description of a type in the format of a | |
59 | typedef for the current language. | |
60 | NEW is the new name for a type TYPE. */ | |
61 | ||
62 | void | |
63 | c_typedef_print (type, new, stream) | |
64 | struct type *type; | |
65 | struct symbol *new; | |
66 | GDB_FILE *stream; | |
67 | { | |
68 | CHECK_TYPEDEF (type); | |
69 | switch (current_language->la_language) | |
70 | { | |
71 | #ifdef _LANG_c | |
72 | case language_c: | |
73 | case language_cplus: | |
74 | fprintf_filtered(stream, "typedef "); | |
75 | type_print(type,"",stream,0); | |
76 | if(TYPE_NAME ((SYMBOL_TYPE (new))) == 0 | |
77 | || !STREQ (TYPE_NAME ((SYMBOL_TYPE (new))), SYMBOL_NAME (new))) | |
78 | fprintf_filtered(stream, " %s", SYMBOL_SOURCE_NAME(new)); | |
79 | break; | |
80 | #endif | |
81 | #ifdef _LANG_m2 | |
82 | case language_m2: | |
83 | fprintf_filtered(stream, "TYPE "); | |
84 | if(!TYPE_NAME(SYMBOL_TYPE(new)) || | |
85 | !STREQ (TYPE_NAME(SYMBOL_TYPE(new)), SYMBOL_NAME(new))) | |
86 | fprintf_filtered(stream, "%s = ", SYMBOL_SOURCE_NAME(new)); | |
87 | else | |
88 | fprintf_filtered(stream, "<builtin> = "); | |
89 | type_print(type,"",stream,0); | |
90 | break; | |
91 | #endif | |
92 | #ifdef _LANG_chill | |
93 | case language_chill: | |
94 | fprintf_filtered(stream, "SYNMODE "); | |
95 | if(!TYPE_NAME(SYMBOL_TYPE(new)) || | |
96 | !STREQ (TYPE_NAME(SYMBOL_TYPE(new)), SYMBOL_NAME(new))) | |
97 | fprintf_filtered(stream, "%s = ", SYMBOL_SOURCE_NAME(new)); | |
98 | else | |
99 | fprintf_filtered(stream, "<builtin> = "); | |
100 | type_print(type,"",stream,0); | |
101 | break; | |
102 | #endif | |
103 | default: | |
104 | error("Language not supported."); | |
105 | } | |
106 | fprintf_filtered(stream, ";\n"); | |
107 | } | |
108 | ||
109 | ||
110 | /* LEVEL is the depth to indent lines by. */ | |
111 | ||
112 | void | |
113 | c_print_type (type, varstring, stream, show, level) | |
114 | struct type *type; | |
115 | char *varstring; | |
116 | GDB_FILE *stream; | |
117 | int show; | |
118 | int level; | |
119 | { | |
120 | register enum type_code code; | |
121 | int demangled_args; | |
122 | ||
123 | if (show > 0) | |
124 | CHECK_TYPEDEF (type); | |
125 | ||
126 | c_type_print_base (type, stream, show, level); | |
127 | code = TYPE_CODE (type); | |
128 | if ((varstring != NULL && *varstring != '\0') | |
129 | || | |
130 | /* Need a space if going to print stars or brackets; | |
131 | but not if we will print just a type name. */ | |
132 | ((show > 0 || TYPE_NAME (type) == 0) | |
133 | && | |
134 | (code == TYPE_CODE_PTR || code == TYPE_CODE_FUNC | |
135 | || code == TYPE_CODE_METHOD | |
136 | || code == TYPE_CODE_ARRAY | |
137 | || code == TYPE_CODE_MEMBER | |
138 | || code == TYPE_CODE_REF))) | |
139 | fputs_filtered (" ", stream); | |
140 | c_type_print_varspec_prefix (type, stream, show, 0); | |
141 | ||
142 | if (varstring != NULL) | |
143 | { | |
144 | fputs_filtered (varstring, stream); | |
145 | ||
146 | /* For demangled function names, we have the arglist as part of the name, | |
147 | so don't print an additional pair of ()'s */ | |
148 | ||
149 | demangled_args = strchr(varstring, '(') != NULL; | |
150 | c_type_print_varspec_suffix (type, stream, show, 0, demangled_args); | |
151 | } | |
152 | } | |
153 | ||
154 | /* If TYPE is a derived type, then print out derivation information. | |
155 | Print only the actual base classes of this type, not the base classes | |
156 | of the base classes. I.E. for the derivation hierarchy: | |
157 | ||
158 | class A { int a; }; | |
159 | class B : public A {int b; }; | |
160 | class C : public B {int c; }; | |
161 | ||
162 | Print the type of class C as: | |
163 | ||
164 | class C : public B { | |
165 | int c; | |
166 | } | |
167 | ||
168 | Not as the following (like gdb used to), which is not legal C++ syntax for | |
169 | derived types and may be confused with the multiple inheritance form: | |
170 | ||
171 | class C : public B : public A { | |
172 | int c; | |
173 | } | |
174 | ||
175 | In general, gdb should try to print the types as closely as possible to | |
176 | the form that they appear in the source code. | |
177 | Note that in case of protected derivation gcc will not say 'protected' | |
178 | but 'private'. The HP's aCC compiler emits specific information for | |
179 | derivation via protected inheritance, so gdb can print it out */ | |
180 | ||
181 | static void | |
182 | cp_type_print_derivation_info (stream, type) | |
183 | GDB_FILE *stream; | |
184 | struct type *type; | |
185 | { | |
186 | char *name; | |
187 | int i; | |
188 | ||
189 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) | |
190 | { | |
191 | fputs_filtered (i == 0 ? ": " : ", ", stream); | |
192 | fprintf_filtered (stream, "%s%s ", | |
193 | BASETYPE_VIA_PUBLIC (type, i) ? "public" | |
194 | : (TYPE_FIELD_PROTECTED (type, i) ? "protected" : "private"), | |
195 | BASETYPE_VIA_VIRTUAL(type, i) ? " virtual" : ""); | |
196 | name = type_name_no_tag (TYPE_BASECLASS (type, i)); | |
197 | fprintf_filtered (stream, "%s", name ? name : "(null)"); | |
198 | } | |
199 | if (i > 0) | |
200 | { | |
201 | fputs_filtered (" ", stream); | |
202 | } | |
203 | } | |
204 | /* Print the C++ method arguments ARGS to the file STREAM. */ | |
205 | ||
206 | void | |
207 | cp_type_print_method_args (args, prefix, varstring, staticp, stream) | |
208 | struct type **args; | |
209 | char *prefix; | |
210 | char *varstring; | |
211 | int staticp; | |
212 | GDB_FILE *stream; | |
213 | { | |
214 | int i; | |
215 | ||
216 | fprintf_symbol_filtered (stream, prefix, language_cplus, DMGL_ANSI); | |
217 | fprintf_symbol_filtered (stream, varstring, language_cplus, DMGL_ANSI); | |
218 | fputs_filtered ("(", stream); | |
219 | if (args && args[!staticp] && args[!staticp]->code != TYPE_CODE_VOID) | |
220 | { | |
221 | i = !staticp; /* skip the class variable */ | |
222 | while (1) | |
223 | { | |
224 | type_print (args[i++], "", stream, 0); | |
225 | if (!args[i]) | |
226 | { | |
227 | fprintf_filtered (stream, " ..."); | |
228 | break; | |
229 | } | |
230 | else if (args[i]->code != TYPE_CODE_VOID) | |
231 | { | |
232 | fprintf_filtered (stream, ", "); | |
233 | } | |
234 | else break; | |
235 | } | |
236 | } | |
237 | else if (current_language->la_language == language_cplus) | |
238 | { | |
239 | fprintf_filtered (stream, "void"); | |
240 | } | |
241 | ||
242 | fprintf_filtered (stream, ")"); | |
243 | } | |
244 | ||
245 | ||
246 | /* Print any asterisks or open-parentheses needed before the | |
247 | variable name (to describe its type). | |
248 | ||
249 | On outermost call, pass 0 for PASSED_A_PTR. | |
250 | On outermost call, SHOW > 0 means should ignore | |
251 | any typename for TYPE and show its details. | |
252 | SHOW is always zero on recursive calls. */ | |
253 | ||
254 | void | |
255 | c_type_print_varspec_prefix (type, stream, show, passed_a_ptr) | |
256 | struct type *type; | |
257 | GDB_FILE *stream; | |
258 | int show; | |
259 | int passed_a_ptr; | |
260 | { | |
261 | char *name; | |
262 | if (type == 0) | |
263 | return; | |
264 | ||
265 | if (TYPE_NAME (type) && show <= 0) | |
266 | return; | |
267 | ||
268 | QUIT; | |
269 | ||
270 | switch (TYPE_CODE (type)) | |
271 | { | |
272 | case TYPE_CODE_PTR: | |
273 | c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 1); | |
274 | fprintf_filtered (stream, "*"); | |
275 | c_type_print_cv_qualifier (type, stream, 1, 0); | |
276 | break; | |
277 | ||
278 | case TYPE_CODE_MEMBER: | |
279 | if (passed_a_ptr) | |
280 | fprintf_filtered (stream, "("); | |
281 | c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0); | |
282 | fprintf_filtered (stream, " "); | |
283 | name = type_name_no_tag (TYPE_DOMAIN_TYPE (type)); | |
284 | if (name) | |
285 | fputs_filtered (name, stream); | |
286 | else | |
287 | c_type_print_base (TYPE_DOMAIN_TYPE (type), stream, 0, passed_a_ptr); | |
288 | fprintf_filtered (stream, "::"); | |
289 | break; | |
290 | ||
291 | case TYPE_CODE_METHOD: | |
292 | if (passed_a_ptr) | |
293 | fprintf_filtered (stream, "("); | |
294 | c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0); | |
295 | if (passed_a_ptr) | |
296 | { | |
297 | fprintf_filtered (stream, " "); | |
298 | c_type_print_base (TYPE_DOMAIN_TYPE (type), stream, 0, passed_a_ptr); | |
299 | fprintf_filtered (stream, "::"); | |
300 | } | |
301 | break; | |
302 | ||
303 | case TYPE_CODE_REF: | |
304 | c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 1); | |
305 | fprintf_filtered (stream, "&"); | |
306 | c_type_print_cv_qualifier (type, stream, 1, 0); | |
307 | break; | |
308 | ||
309 | case TYPE_CODE_FUNC: | |
310 | c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0); | |
311 | if (passed_a_ptr) | |
312 | fprintf_filtered (stream, "("); | |
313 | break; | |
314 | ||
315 | case TYPE_CODE_ARRAY: | |
316 | c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0); | |
317 | if (passed_a_ptr) | |
318 | fprintf_filtered (stream, "("); | |
319 | break; | |
320 | ||
321 | case TYPE_CODE_UNDEF: | |
322 | case TYPE_CODE_STRUCT: | |
323 | case TYPE_CODE_UNION: | |
324 | case TYPE_CODE_ENUM: | |
325 | case TYPE_CODE_INT: | |
326 | case TYPE_CODE_FLT: | |
327 | case TYPE_CODE_VOID: | |
328 | case TYPE_CODE_ERROR: | |
329 | case TYPE_CODE_CHAR: | |
330 | case TYPE_CODE_BOOL: | |
331 | case TYPE_CODE_SET: | |
332 | case TYPE_CODE_RANGE: | |
333 | case TYPE_CODE_STRING: | |
334 | case TYPE_CODE_BITSTRING: | |
335 | case TYPE_CODE_COMPLEX: | |
336 | case TYPE_CODE_TYPEDEF: | |
337 | /* These types need no prefix. They are listed here so that | |
338 | gcc -Wall will reveal any types that haven't been handled. */ | |
339 | break; | |
340 | } | |
341 | } | |
342 | ||
343 | /* Print out "const" and "volatile" attributes. | |
344 | TYPE is a pointer to the type being printed out. | |
345 | STREAM is the output destination. | |
346 | NEED_SPACE = 1 indicates an initial white space is needed */ | |
347 | ||
348 | static void | |
349 | c_type_print_cv_qualifier (type, stream, need_pre_space, need_post_space) | |
350 | struct type *type; | |
351 | GDB_FILE *stream; | |
352 | int need_pre_space; | |
353 | int need_post_space; | |
354 | { | |
355 | int flag = 0; | |
356 | ||
357 | if (TYPE_CONST (type)) | |
358 | { | |
359 | if (need_pre_space) | |
360 | fprintf_filtered (stream, " "); | |
361 | fprintf_filtered (stream, "const"); | |
362 | flag = 1; | |
363 | } | |
364 | ||
365 | if (TYPE_VOLATILE (type)) | |
366 | { | |
367 | if (flag || need_pre_space) | |
368 | fprintf_filtered (stream, " "); | |
369 | fprintf_filtered (stream, "volatile"); | |
370 | flag = 1; | |
371 | } | |
372 | ||
373 | if (flag && need_post_space) | |
374 | fprintf_filtered (stream, " "); | |
375 | } | |
376 | ||
377 | ||
378 | ||
379 | ||
380 | static void | |
381 | c_type_print_args (type, stream) | |
382 | struct type *type; | |
383 | GDB_FILE *stream; | |
384 | { | |
385 | int i; | |
386 | struct type **args; | |
387 | ||
388 | fprintf_filtered (stream, "("); | |
389 | args = TYPE_ARG_TYPES (type); | |
390 | if (args != NULL) | |
391 | { | |
392 | if (args[1] == NULL) | |
393 | { | |
394 | fprintf_filtered (stream, "..."); | |
395 | } | |
396 | else if ((args[1]->code == TYPE_CODE_VOID) && | |
397 | (current_language->la_language == language_cplus)) | |
398 | { | |
399 | fprintf_filtered (stream, "void"); | |
400 | } | |
401 | else | |
402 | { | |
403 | for (i = 1; | |
404 | args[i] != NULL && args[i]->code != TYPE_CODE_VOID; | |
405 | i++) | |
406 | { | |
407 | c_print_type (args[i], "", stream, -1, 0); | |
408 | if (args[i+1] == NULL) | |
409 | { | |
410 | fprintf_filtered (stream, "..."); | |
411 | } | |
412 | else if (args[i+1]->code != TYPE_CODE_VOID) | |
413 | { | |
414 | fprintf_filtered (stream, ","); | |
415 | wrap_here (" "); | |
416 | } | |
417 | } | |
418 | } | |
419 | } | |
420 | else if (current_language->la_language == language_cplus) | |
421 | { | |
422 | fprintf_filtered (stream, "void"); | |
423 | } | |
424 | ||
425 | fprintf_filtered (stream, ")"); | |
426 | } | |
427 | ||
428 | /* Print any array sizes, function arguments or close parentheses | |
429 | needed after the variable name (to describe its type). | |
430 | Args work like c_type_print_varspec_prefix. */ | |
431 | ||
432 | void | |
433 | c_type_print_varspec_suffix (type, stream, show, passed_a_ptr, demangled_args) | |
434 | struct type *type; | |
435 | GDB_FILE *stream; | |
436 | int show; | |
437 | int passed_a_ptr; | |
438 | int demangled_args; | |
439 | { | |
440 | if (type == 0) | |
441 | return; | |
442 | ||
443 | if (TYPE_NAME (type) && show <= 0) | |
444 | return; | |
445 | ||
446 | QUIT; | |
447 | ||
448 | switch (TYPE_CODE (type)) | |
449 | { | |
450 | case TYPE_CODE_ARRAY: | |
451 | if (passed_a_ptr) | |
452 | fprintf_filtered (stream, ")"); | |
453 | ||
454 | fprintf_filtered (stream, "["); | |
455 | if (TYPE_LENGTH (type) >= 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0 | |
456 | && TYPE_ARRAY_UPPER_BOUND_TYPE(type) != BOUND_CANNOT_BE_DETERMINED) | |
457 | fprintf_filtered (stream, "%d", | |
458 | (TYPE_LENGTH (type) | |
459 | / TYPE_LENGTH (TYPE_TARGET_TYPE (type)))); | |
460 | fprintf_filtered (stream, "]"); | |
461 | ||
462 | c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 0, 0); | |
463 | break; | |
464 | ||
465 | case TYPE_CODE_MEMBER: | |
466 | if (passed_a_ptr) | |
467 | fprintf_filtered (stream, ")"); | |
468 | c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 0, 0); | |
469 | break; | |
470 | ||
471 | case TYPE_CODE_METHOD: | |
472 | if (passed_a_ptr) | |
473 | fprintf_filtered (stream, ")"); | |
474 | c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 0, 0); | |
475 | if (passed_a_ptr) | |
476 | { | |
477 | c_type_print_args (type, stream); | |
478 | } | |
479 | break; | |
480 | ||
481 | case TYPE_CODE_PTR: | |
482 | case TYPE_CODE_REF: | |
483 | c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 1, 0); | |
484 | break; | |
485 | ||
486 | case TYPE_CODE_FUNC: | |
487 | if (passed_a_ptr) | |
488 | fprintf_filtered (stream, ")"); | |
489 | if (!demangled_args) | |
490 | { int i, len = TYPE_NFIELDS (type); | |
491 | fprintf_filtered (stream, "("); | |
492 | if ((len == 0) && (current_language->la_language == language_cplus)) | |
493 | { | |
494 | fprintf_filtered (stream, "void"); | |
495 | } | |
496 | else | |
497 | for (i = 0; i < len; i++) | |
498 | { | |
499 | if (i > 0) | |
500 | { | |
501 | fputs_filtered (", ", stream); | |
502 | wrap_here (" "); | |
503 | } | |
504 | c_print_type (TYPE_FIELD_TYPE (type, i), "", stream, -1, 0); | |
505 | } | |
506 | fprintf_filtered (stream, ")"); | |
507 | } | |
508 | c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, | |
509 | passed_a_ptr, 0); | |
510 | break; | |
511 | ||
512 | case TYPE_CODE_UNDEF: | |
513 | case TYPE_CODE_STRUCT: | |
514 | case TYPE_CODE_UNION: | |
515 | case TYPE_CODE_ENUM: | |
516 | case TYPE_CODE_INT: | |
517 | case TYPE_CODE_FLT: | |
518 | case TYPE_CODE_VOID: | |
519 | case TYPE_CODE_ERROR: | |
520 | case TYPE_CODE_CHAR: | |
521 | case TYPE_CODE_BOOL: | |
522 | case TYPE_CODE_SET: | |
523 | case TYPE_CODE_RANGE: | |
524 | case TYPE_CODE_STRING: | |
525 | case TYPE_CODE_BITSTRING: | |
526 | case TYPE_CODE_COMPLEX: | |
527 | case TYPE_CODE_TYPEDEF: | |
528 | /* These types do not need a suffix. They are listed so that | |
529 | gcc -Wall will report types that may not have been considered. */ | |
530 | break; | |
531 | } | |
532 | } | |
533 | ||
534 | /* Print the name of the type (or the ultimate pointer target, | |
535 | function value or array element), or the description of a | |
536 | structure or union. | |
537 | ||
538 | SHOW positive means print details about the type (e.g. enum values), | |
539 | and print structure elements passing SHOW - 1 for show. | |
540 | SHOW negative means just print the type name or struct tag if there is one. | |
541 | If there is no name, print something sensible but concise like | |
542 | "struct {...}". | |
543 | SHOW zero means just print the type name or struct tag if there is one. | |
544 | If there is no name, print something sensible but not as concise like | |
545 | "struct {int x; int y;}". | |
546 | ||
547 | LEVEL is the number of spaces to indent by. | |
548 | We increase it for some recursive calls. */ | |
549 | ||
550 | void | |
551 | c_type_print_base (type, stream, show, level) | |
552 | struct type *type; | |
553 | GDB_FILE *stream; | |
554 | int show; | |
555 | int level; | |
556 | { | |
557 | register int i; | |
558 | register int len; | |
559 | register int lastval; | |
560 | char *mangled_name; | |
561 | char *demangled_name; | |
562 | char *demangled_no_static; | |
563 | enum {s_none, s_public, s_private, s_protected} section_type; | |
564 | int need_access_label = 0; | |
565 | int j, len2; | |
566 | ||
567 | QUIT; | |
568 | ||
569 | wrap_here (" "); | |
570 | if (type == NULL) | |
571 | { | |
572 | fputs_filtered ("<type unknown>", stream); | |
573 | return; | |
574 | } | |
575 | ||
576 | /* When SHOW is zero or less, and there is a valid type name, then always | |
577 | just print the type name directly from the type. */ | |
578 | /* If we have "typedef struct foo {. . .} bar;" do we want to print it | |
579 | as "struct foo" or as "bar"? Pick the latter, because C++ folk tend | |
580 | to expect things like "class5 *foo" rather than "struct class5 *foo". */ | |
581 | ||
582 | if (show <= 0 | |
583 | && TYPE_NAME (type) != NULL) | |
584 | { | |
585 | c_type_print_cv_qualifier (type, stream, 0, 1); | |
586 | fputs_filtered (TYPE_NAME (type), stream); | |
587 | return; | |
588 | } | |
589 | ||
590 | CHECK_TYPEDEF (type); | |
591 | ||
592 | switch (TYPE_CODE (type)) | |
593 | { | |
594 | case TYPE_CODE_TYPEDEF: | |
595 | case TYPE_CODE_ARRAY: | |
596 | case TYPE_CODE_PTR: | |
597 | case TYPE_CODE_MEMBER: | |
598 | case TYPE_CODE_REF: | |
599 | case TYPE_CODE_FUNC: | |
600 | case TYPE_CODE_METHOD: | |
601 | c_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level); | |
602 | break; | |
603 | ||
604 | case TYPE_CODE_STRUCT: | |
605 | c_type_print_cv_qualifier (type, stream, 0, 1); | |
606 | /* Note TYPE_CODE_STRUCT and TYPE_CODE_CLASS have the same value, | |
607 | * so we use another means for distinguishing them. | |
608 | */ | |
609 | if (HAVE_CPLUS_STRUCT (type)) { | |
610 | switch (TYPE_DECLARED_TYPE(type)) { | |
611 | case DECLARED_TYPE_CLASS: | |
612 | fprintf_filtered (stream, "class "); | |
613 | break; | |
614 | case DECLARED_TYPE_UNION: | |
615 | fprintf_filtered (stream, "union "); | |
616 | break; | |
617 | case DECLARED_TYPE_STRUCT: | |
618 | fprintf_filtered (stream, "struct "); | |
619 | break; | |
620 | default: | |
621 | /* If there is a CPLUS_STRUCT, assume class if not | |
622 | * otherwise specified in the declared_type field. | |
623 | */ | |
624 | fprintf_filtered (stream, "class "); | |
625 | break; | |
626 | } /* switch */ | |
627 | } else { | |
628 | /* If not CPLUS_STRUCT, then assume it's a C struct */ | |
629 | fprintf_filtered (stream, "struct "); | |
630 | } | |
631 | goto struct_union; | |
632 | ||
633 | case TYPE_CODE_UNION: | |
634 | c_type_print_cv_qualifier (type, stream, 0, 1); | |
635 | fprintf_filtered (stream, "union "); | |
636 | ||
637 | struct_union: | |
638 | ||
639 | /* Print the tag if it exists. | |
640 | * The HP aCC compiler emits | |
641 | * a spurious "{unnamed struct}"/"{unnamed union}"/"{unnamed enum}" | |
642 | * tag for unnamed struct/union/enum's, which we don't | |
643 | * want to print. | |
644 | */ | |
645 | if (TYPE_TAG_NAME (type) != NULL && | |
646 | strncmp(TYPE_TAG_NAME(type), "{unnamed", 8)) | |
647 | { | |
648 | fputs_filtered (TYPE_TAG_NAME (type), stream); | |
649 | if (show > 0) | |
650 | fputs_filtered (" ", stream); | |
651 | } | |
652 | wrap_here (" "); | |
653 | if (show < 0) | |
654 | { | |
655 | /* If we just printed a tag name, no need to print anything else. */ | |
656 | if (TYPE_TAG_NAME (type) == NULL) | |
657 | fprintf_filtered (stream, "{...}"); | |
658 | } | |
659 | else if (show > 0 || TYPE_TAG_NAME (type) == NULL) | |
660 | { | |
661 | cp_type_print_derivation_info (stream, type); | |
662 | ||
663 | fprintf_filtered (stream, "{\n"); | |
664 | if ((TYPE_NFIELDS (type) == 0) && (TYPE_NFN_FIELDS (type) == 0)) | |
665 | { | |
666 | if (TYPE_FLAGS (type) & TYPE_FLAG_STUB) | |
667 | fprintfi_filtered (level + 4, stream, "<incomplete type>\n"); | |
668 | else | |
669 | fprintfi_filtered (level + 4, stream, "<no data fields>\n"); | |
670 | } | |
671 | ||
672 | /* Start off with no specific section type, so we can print | |
673 | one for the first field we find, and use that section type | |
674 | thereafter until we find another type. */ | |
675 | ||
676 | section_type = s_none; | |
677 | ||
678 | /* For a class, if all members are private, there's no need | |
679 | for a "private:" label; similarly, for a struct or union | |
680 | masquerading as a class, if all members are public, there's | |
681 | no need for a "public:" label. */ | |
682 | ||
683 | if ((TYPE_DECLARED_TYPE (type) == DECLARED_TYPE_CLASS) || | |
684 | (TYPE_DECLARED_TYPE (type) == DECLARED_TYPE_TEMPLATE)) | |
685 | { | |
686 | QUIT; | |
687 | len = TYPE_NFIELDS (type); | |
688 | for (i = TYPE_N_BASECLASSES (type); i < len; i++) | |
689 | if (!TYPE_FIELD_PRIVATE (type, i)) | |
690 | { | |
691 | need_access_label = 1; | |
692 | break; | |
693 | } | |
694 | QUIT; | |
695 | if (!need_access_label) | |
696 | { | |
697 | len2 = TYPE_NFN_FIELDS (type); | |
698 | for (j = 0; j < len2; j++) | |
699 | { | |
700 | len = TYPE_FN_FIELDLIST_LENGTH (type, j); | |
701 | for (i = 0; i < len; i++) | |
702 | if (!TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type, j), i)) | |
703 | { | |
704 | need_access_label = 1; | |
705 | break; | |
706 | } | |
707 | if (need_access_label) | |
708 | break; | |
709 | } | |
710 | } | |
711 | } | |
712 | else if ((TYPE_DECLARED_TYPE (type) == DECLARED_TYPE_STRUCT) || | |
713 | (TYPE_DECLARED_TYPE (type) == DECLARED_TYPE_UNION)) | |
714 | { | |
715 | QUIT; | |
716 | len = TYPE_NFIELDS (type); | |
717 | for (i = TYPE_N_BASECLASSES (type); i < len; i++) | |
718 | if (TYPE_FIELD_PRIVATE (type, i) || TYPE_FIELD_PROTECTED (type, i)) | |
719 | { | |
720 | need_access_label = 1; | |
721 | break; | |
722 | } | |
723 | QUIT; | |
724 | if (!need_access_label) | |
725 | { | |
726 | len2 = TYPE_NFN_FIELDS (type); | |
727 | for (j = 0; j < len2; j++) | |
728 | { | |
729 | QUIT; | |
730 | len = TYPE_FN_FIELDLIST_LENGTH (type, j); | |
731 | for (i = 0; i < len; i++) | |
732 | if (TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type, j), i) || | |
733 | TYPE_FN_FIELD_PROTECTED (TYPE_FN_FIELDLIST1 (type, j), i)) | |
734 | { | |
735 | need_access_label = 1; | |
736 | break; | |
737 | } | |
738 | if (need_access_label) | |
739 | break; | |
740 | } | |
741 | } | |
742 | } | |
743 | ||
744 | /* If there is a base class for this type, | |
745 | do not print the field that it occupies. */ | |
746 | ||
747 | len = TYPE_NFIELDS (type); | |
748 | for (i = TYPE_N_BASECLASSES (type); i < len; i++) | |
749 | { | |
750 | QUIT; | |
751 | /* Don't print out virtual function table. */ | |
752 | /* HP ANSI C++ case */ | |
753 | if (TYPE_HAS_VTABLE(type) && (STREQN (TYPE_FIELD_NAME (type, i), "__vfp", 5))) | |
754 | continue; | |
755 | /* Other compilers */ | |
756 | /* pai:: FIXME : check for has_vtable < 0 */ | |
757 | if (STREQN (TYPE_FIELD_NAME (type, i), "_vptr", 5) | |
758 | && is_cplus_marker ((TYPE_FIELD_NAME (type, i))[5])) | |
759 | continue; | |
760 | ||
761 | /* If this is a C++ class we can print the various C++ section | |
762 | labels. */ | |
763 | ||
764 | if (HAVE_CPLUS_STRUCT (type) && need_access_label) | |
765 | { | |
766 | if (TYPE_FIELD_PROTECTED (type, i)) | |
767 | { | |
768 | if (section_type != s_protected) | |
769 | { | |
770 | section_type = s_protected; | |
771 | fprintfi_filtered (level + 2, stream, | |
772 | "protected:\n"); | |
773 | } | |
774 | } | |
775 | else if (TYPE_FIELD_PRIVATE (type, i)) | |
776 | { | |
777 | if (section_type != s_private) | |
778 | { | |
779 | section_type = s_private; | |
780 | fprintfi_filtered (level + 2, stream, "private:\n"); | |
781 | } | |
782 | } | |
783 | else | |
784 | { | |
785 | if (section_type != s_public) | |
786 | { | |
787 | section_type = s_public; | |
788 | fprintfi_filtered (level + 2, stream, "public:\n"); | |
789 | } | |
790 | } | |
791 | } | |
792 | ||
793 | print_spaces_filtered (level + 4, stream); | |
794 | if (TYPE_FIELD_STATIC (type, i)) | |
795 | { | |
796 | fprintf_filtered (stream, "static "); | |
797 | } | |
798 | c_print_type (TYPE_FIELD_TYPE (type, i), | |
799 | TYPE_FIELD_NAME (type, i), | |
800 | stream, show - 1, level + 4); | |
801 | if (!TYPE_FIELD_STATIC (type, i) | |
802 | && TYPE_FIELD_PACKED (type, i)) | |
803 | { | |
804 | /* It is a bitfield. This code does not attempt | |
805 | to look at the bitpos and reconstruct filler, | |
806 | unnamed fields. This would lead to misleading | |
807 | results if the compiler does not put out fields | |
808 | for such things (I don't know what it does). */ | |
809 | fprintf_filtered (stream, " : %d", | |
810 | TYPE_FIELD_BITSIZE (type, i)); | |
811 | } | |
812 | fprintf_filtered (stream, ";\n"); | |
813 | } | |
814 | ||
815 | /* If there are both fields and methods, put a space between. */ | |
816 | len = TYPE_NFN_FIELDS (type); | |
817 | if (len && section_type != s_none) | |
818 | fprintf_filtered (stream, "\n"); | |
819 | ||
820 | /* C++: print out the methods */ | |
821 | for (i = 0; i < len; i++) | |
822 | { | |
823 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i); | |
824 | int j, len2 = TYPE_FN_FIELDLIST_LENGTH (type, i); | |
825 | char *method_name = TYPE_FN_FIELDLIST_NAME (type, i); | |
826 | char *name = type_name_no_tag (type); | |
827 | int is_constructor = name && STREQ(method_name, name); | |
828 | for (j = 0; j < len2; j++) | |
829 | { | |
830 | char *physname = TYPE_FN_FIELD_PHYSNAME (f, j); | |
831 | int is_full_physname_constructor = | |
832 | ((physname[0] == '_' && physname[1] == '_' | |
833 | && strchr ("0123456789Qt", physname[2])) | |
834 | || STREQN (physname, "__ct__", 6) | |
835 | || DESTRUCTOR_PREFIX_P (physname) | |
836 | || STREQN (physname, "__dt__", 6)); | |
837 | ||
838 | QUIT; | |
839 | if (TYPE_FN_FIELD_PROTECTED (f, j)) | |
840 | { | |
841 | if (section_type != s_protected) | |
842 | { | |
843 | section_type = s_protected; | |
844 | fprintfi_filtered (level + 2, stream, | |
845 | "protected:\n"); | |
846 | } | |
847 | } | |
848 | else if (TYPE_FN_FIELD_PRIVATE (f, j)) | |
849 | { | |
850 | if (section_type != s_private) | |
851 | { | |
852 | section_type = s_private; | |
853 | fprintfi_filtered (level + 2, stream, "private:\n"); | |
854 | } | |
855 | } | |
856 | else | |
857 | { | |
858 | if (section_type != s_public) | |
859 | { | |
860 | section_type = s_public; | |
861 | fprintfi_filtered (level + 2, stream, "public:\n"); | |
862 | } | |
863 | } | |
864 | ||
865 | print_spaces_filtered (level + 4, stream); | |
866 | if (TYPE_FN_FIELD_VIRTUAL_P (f, j)) | |
867 | fprintf_filtered (stream, "virtual "); | |
868 | else if (TYPE_FN_FIELD_STATIC_P (f, j)) | |
869 | fprintf_filtered (stream, "static "); | |
870 | if (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)) == 0) | |
871 | { | |
872 | /* Keep GDB from crashing here. */ | |
873 | fprintf_filtered (stream, "<undefined type> %s;\n", | |
874 | TYPE_FN_FIELD_PHYSNAME (f, j)); | |
875 | break; | |
876 | } | |
877 | else if (!is_constructor && /* constructors don't have declared types */ | |
878 | !is_full_physname_constructor && /* " " */ | |
879 | !strstr (method_name, "operator ")) /* Not a type conversion operator */ | |
880 | /* (note space -- other operators don't have it) */ | |
881 | { | |
882 | type_print (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)), | |
883 | "", stream, -1); | |
884 | fputs_filtered (" ", stream); | |
885 | } | |
886 | if (TYPE_FN_FIELD_STUB (f, j)) | |
887 | /* Build something we can demangle. */ | |
888 | mangled_name = gdb_mangle_name (type, i, j); | |
889 | else | |
890 | mangled_name = TYPE_FN_FIELD_PHYSNAME (f, j); | |
891 | ||
892 | demangled_name = | |
893 | cplus_demangle (mangled_name, | |
894 | DMGL_ANSI | DMGL_PARAMS); | |
895 | if (demangled_name == NULL) | |
896 | { | |
897 | /* in some cases (for instance with the HP demangling), | |
898 | if a function has more than 10 arguments, | |
899 | the demangling will fail. | |
900 | Let's try to reconstruct the function signature from | |
901 | the symbol information */ | |
902 | if (!TYPE_FN_FIELD_STUB (f, j)) | |
903 | cp_type_print_method_args (TYPE_FN_FIELD_ARGS (f, j), "", | |
904 | method_name, | |
905 | TYPE_FN_FIELD_STATIC_P (f, j), | |
906 | stream); | |
907 | else | |
908 | fprintf_filtered (stream, "<badly mangled name '%s'>", | |
909 | mangled_name); | |
910 | } | |
911 | else | |
912 | { | |
913 | char *p; | |
914 | char *demangled_no_class = demangled_name; | |
915 | ||
7a292a7a | 916 | while ((p = strchr (demangled_no_class, ':'))) |
c906108c SS |
917 | { |
918 | demangled_no_class = p; | |
919 | if (*++demangled_no_class == ':') | |
920 | ++demangled_no_class; | |
921 | } | |
922 | /* get rid of the static word appended by the demangler */ | |
923 | p = strstr (demangled_no_class, " static"); | |
924 | if (p != NULL) | |
925 | { | |
926 | int length = p - demangled_no_class; | |
927 | demangled_no_static = (char *) xmalloc (length + 1); | |
928 | strncpy (demangled_no_static, demangled_no_class, length); | |
929 | *(demangled_no_static + length) = '\0'; | |
930 | fputs_filtered (demangled_no_static, stream); | |
931 | free (demangled_no_static); | |
932 | } | |
933 | else | |
934 | fputs_filtered (demangled_no_class, stream); | |
935 | free (demangled_name); | |
936 | } | |
937 | ||
938 | if (TYPE_FN_FIELD_STUB (f, j)) | |
939 | free (mangled_name); | |
940 | ||
941 | fprintf_filtered (stream, ";\n"); | |
942 | } | |
943 | } | |
944 | ||
945 | if (TYPE_LOCALTYPE_PTR (type) && show >= 0) | |
946 | fprintfi_filtered (level, stream, " (Local at %s:%d)\n", | |
947 | TYPE_LOCALTYPE_FILE (type), | |
948 | TYPE_LOCALTYPE_LINE (type)); | |
949 | ||
950 | fprintfi_filtered (level, stream, "}"); | |
951 | } | |
952 | if (TYPE_CODE(type) == TYPE_CODE_TEMPLATE) | |
953 | goto go_back; | |
954 | break; | |
955 | ||
956 | case TYPE_CODE_ENUM: | |
957 | c_type_print_cv_qualifier (type, stream, 0, 1); | |
958 | /* HP C supports sized enums */ | |
959 | if (hp_som_som_object_present) | |
960 | switch (TYPE_LENGTH (type)) | |
961 | { | |
962 | case 1: | |
963 | fputs_filtered ("char ", stream); | |
964 | break; | |
965 | case 2: | |
966 | fputs_filtered ("short ", stream); | |
967 | break; | |
968 | default: | |
969 | break; | |
970 | } | |
971 | fprintf_filtered (stream, "enum "); | |
972 | /* Print the tag name if it exists. | |
973 | The aCC compiler emits a spurious | |
974 | "{unnamed struct}"/"{unnamed union}"/"{unnamed enum}" | |
975 | tag for unnamed struct/union/enum's, which we don't | |
976 | want to print. */ | |
977 | if (TYPE_TAG_NAME (type) != NULL && | |
978 | strncmp(TYPE_TAG_NAME(type), "{unnamed", 8)) | |
979 | { | |
980 | fputs_filtered (TYPE_TAG_NAME (type), stream); | |
981 | if (show > 0) | |
982 | fputs_filtered (" ", stream); | |
983 | } | |
984 | ||
985 | wrap_here (" "); | |
986 | if (show < 0) | |
987 | { | |
988 | /* If we just printed a tag name, no need to print anything else. */ | |
989 | if (TYPE_TAG_NAME (type) == NULL) | |
990 | fprintf_filtered (stream, "{...}"); | |
991 | } | |
992 | else if (show > 0 || TYPE_TAG_NAME (type) == NULL) | |
993 | { | |
994 | fprintf_filtered (stream, "{"); | |
995 | len = TYPE_NFIELDS (type); | |
996 | lastval = 0; | |
997 | for (i = 0; i < len; i++) | |
998 | { | |
999 | QUIT; | |
1000 | if (i) fprintf_filtered (stream, ", "); | |
1001 | wrap_here (" "); | |
1002 | fputs_filtered (TYPE_FIELD_NAME (type, i), stream); | |
1003 | if (lastval != TYPE_FIELD_BITPOS (type, i)) | |
1004 | { | |
1005 | fprintf_filtered (stream, " = %d", TYPE_FIELD_BITPOS (type, i)); | |
1006 | lastval = TYPE_FIELD_BITPOS (type, i); | |
1007 | } | |
1008 | lastval++; | |
1009 | } | |
1010 | fprintf_filtered (stream, "}"); | |
1011 | } | |
1012 | break; | |
1013 | ||
1014 | case TYPE_CODE_VOID: | |
1015 | fprintf_filtered (stream, "void"); | |
1016 | break; | |
1017 | ||
1018 | case TYPE_CODE_UNDEF: | |
1019 | fprintf_filtered (stream, "struct <unknown>"); | |
1020 | break; | |
1021 | ||
1022 | case TYPE_CODE_ERROR: | |
1023 | fprintf_filtered (stream, "<unknown type>"); | |
1024 | break; | |
1025 | ||
1026 | case TYPE_CODE_RANGE: | |
1027 | /* This should not occur */ | |
1028 | fprintf_filtered (stream, "<range type>"); | |
1029 | break; | |
1030 | ||
1031 | case TYPE_CODE_TEMPLATE: | |
1032 | /* Called on "ptype t" where "t" is a template. | |
1033 | Prints the template header (with args), e.g.: | |
1034 | template <class T1, class T2> class " | |
1035 | and then merges with the struct/union/class code to | |
1036 | print the rest of the definition. */ | |
1037 | c_type_print_cv_qualifier (type, stream, 0, 1); | |
1038 | fprintf_filtered (stream, "template <"); | |
1039 | for (i = 0; i < TYPE_NTEMPLATE_ARGS(type); i++) { | |
1040 | struct template_arg templ_arg; | |
1041 | templ_arg = TYPE_TEMPLATE_ARG(type, i); | |
1042 | fprintf_filtered (stream, "class %s", templ_arg.name); | |
1043 | if (i < TYPE_NTEMPLATE_ARGS(type)-1) | |
1044 | fprintf_filtered (stream, ", "); | |
1045 | } | |
1046 | fprintf_filtered (stream, "> class "); | |
1047 | /* Yuck, factor this out to a subroutine so we can call | |
1048 | it and return to the point marked with the "goback:" label... - RT */ | |
1049 | goto struct_union; | |
1050 | go_back: | |
1051 | if (TYPE_NINSTANTIATIONS(type) > 0) { | |
1052 | fprintf_filtered (stream, "\ntemplate instantiations:\n"); | |
1053 | for (i = 0; i < TYPE_NINSTANTIATIONS(type); i++) { | |
1054 | fprintf_filtered(stream, " "); | |
1055 | c_type_print_base (TYPE_INSTANTIATION(type, i), stream, 0, level); | |
1056 | if (i < TYPE_NINSTANTIATIONS(type)-1) fprintf_filtered(stream, "\n"); | |
1057 | } | |
1058 | } | |
1059 | break; | |
1060 | ||
1061 | default: | |
1062 | /* Handle types not explicitly handled by the other cases, | |
1063 | such as fundamental types. For these, just print whatever | |
1064 | the type name is, as recorded in the type itself. If there | |
1065 | is no type name, then complain. */ | |
1066 | if (TYPE_NAME (type) != NULL) | |
1067 | { | |
1068 | c_type_print_cv_qualifier (type, stream, 0, 1); | |
1069 | fputs_filtered (TYPE_NAME (type), stream); | |
1070 | } | |
1071 | else | |
1072 | { | |
1073 | /* At least for dump_symtab, it is important that this not be | |
1074 | an error (). */ | |
1075 | fprintf_filtered (stream, "<invalid type code %d>", | |
1076 | TYPE_CODE (type)); | |
1077 | } | |
1078 | break; | |
1079 | } | |
1080 | } | |
1081 | ||
1082 | ||
1083 | ||
1084 | ||
1085 | ||
1086 | ||
1087 | ||
1088 | ||
1089 |