Commit | Line | Data |
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c906108c | 1 | /* Language independent support for printing types for GDB, the GNU debugger. |
1bac305b | 2 | |
c5a57081 | 3 | Copyright (C) 1986, 1988-1989, 1991-1995, 1998-2001, 2003, 2006-2012 |
4c38e0a4 | 4 | Free Software Foundation, Inc. |
c906108c | 5 | |
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 11 | (at your option) any later version. |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b | 18 | You should have received a copy of the GNU General Public License |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
20 | |
21 | #include "defs.h" | |
04ea0df1 | 22 | #include "gdb_obstack.h" |
c906108c SS |
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 "command.h" | |
30 | #include "gdbcmd.h" | |
31 | #include "target.h" | |
32 | #include "language.h" | |
015a42b4 | 33 | #include "cp-abi.h" |
b9362cc7 | 34 | #include "typeprint.h" |
c906108c | 35 | #include "gdb_string.h" |
ae6a3a4c | 36 | #include "exceptions.h" |
79a45b7d | 37 | #include "valprint.h" |
c906108c | 38 | #include <errno.h> |
53342f27 TT |
39 | #include <ctype.h> |
40 | #include "cli/cli-utils.h" | |
18a9fc12 | 41 | #include "python/python.h" |
4fc5d43e | 42 | #include "completer.h" |
c906108c | 43 | |
a14ed312 | 44 | extern void _initialize_typeprint (void); |
392a587b | 45 | |
a14ed312 | 46 | static void ptype_command (char *, int); |
c906108c | 47 | |
a14ed312 | 48 | static void whatis_command (char *, int); |
c906108c | 49 | |
a14ed312 | 50 | static void whatis_exp (char *, int); |
c906108c | 51 | |
79d43c61 TT |
52 | const struct type_print_options type_print_raw_options = |
53 | { | |
53342f27 TT |
54 | 1, /* raw */ |
55 | 1, /* print_methods */ | |
bd69fc68 | 56 | 1, /* print_typedefs */ |
18a9fc12 TT |
57 | NULL, /* local_typedefs */ |
58 | NULL, /* global_table */ | |
59 | NULL /* global_printers */ | |
79d43c61 TT |
60 | }; |
61 | ||
62 | /* The default flags for 'ptype' and 'whatis'. */ | |
63 | ||
64 | static struct type_print_options default_ptype_flags = | |
65 | { | |
53342f27 TT |
66 | 0, /* raw */ |
67 | 1, /* print_methods */ | |
bd69fc68 | 68 | 1, /* print_typedefs */ |
18a9fc12 TT |
69 | NULL, /* local_typedefs */ |
70 | NULL, /* global_table */ | |
71 | NULL /* global_printers */ | |
79d43c61 | 72 | }; |
5c6ce71d | 73 | |
53342f27 TT |
74 | \f |
75 | ||
bd69fc68 TT |
76 | /* A hash table holding typedef_field objects. This is more |
77 | complicated than an ordinary hash because it must also track the | |
78 | lifetime of some -- but not all -- of the contained objects. */ | |
79 | ||
80 | struct typedef_hash_table | |
81 | { | |
82 | /* The actual hash table. */ | |
83 | htab_t table; | |
84 | ||
85 | /* Storage for typedef_field objects that must be synthesized. */ | |
86 | struct obstack storage; | |
87 | }; | |
88 | ||
89 | /* A hash function for a typedef_field. */ | |
90 | ||
91 | static hashval_t | |
92 | hash_typedef_field (const void *p) | |
93 | { | |
94 | const struct typedef_field *tf = p; | |
95 | struct type *t = check_typedef (tf->type); | |
96 | ||
97 | return htab_hash_string (TYPE_SAFE_NAME (t)); | |
98 | } | |
99 | ||
100 | /* An equality function for a typedef field. */ | |
101 | ||
102 | static int | |
103 | eq_typedef_field (const void *a, const void *b) | |
104 | { | |
105 | const struct typedef_field *tfa = a; | |
106 | const struct typedef_field *tfb = b; | |
107 | ||
108 | return types_equal (tfa->type, tfb->type); | |
109 | } | |
110 | ||
111 | /* Add typedefs from T to the hash table TABLE. */ | |
112 | ||
113 | void | |
114 | recursively_update_typedef_hash (struct typedef_hash_table *table, | |
115 | struct type *t) | |
116 | { | |
117 | int i; | |
118 | ||
119 | if (table == NULL) | |
120 | return; | |
121 | ||
122 | for (i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (t); ++i) | |
123 | { | |
124 | struct typedef_field *tdef = &TYPE_TYPEDEF_FIELD (t, i); | |
125 | void **slot; | |
126 | ||
127 | slot = htab_find_slot (table->table, tdef, INSERT); | |
128 | /* Only add a given typedef name once. Really this shouldn't | |
129 | happen; but it is safe enough to do the updates breadth-first | |
130 | and thus use the most specific typedef. */ | |
131 | if (*slot == NULL) | |
132 | *slot = tdef; | |
133 | } | |
134 | ||
135 | /* Recurse into superclasses. */ | |
136 | for (i = 0; i < TYPE_N_BASECLASSES (t); ++i) | |
137 | recursively_update_typedef_hash (table, TYPE_BASECLASS (t, i)); | |
138 | } | |
139 | ||
140 | /* Add template parameters from T to the typedef hash TABLE. */ | |
141 | ||
142 | void | |
143 | add_template_parameters (struct typedef_hash_table *table, struct type *t) | |
144 | { | |
145 | int i; | |
146 | ||
147 | if (table == NULL) | |
148 | return; | |
149 | ||
150 | for (i = 0; i < TYPE_N_TEMPLATE_ARGUMENTS (t); ++i) | |
151 | { | |
152 | struct typedef_field *tf; | |
153 | void **slot; | |
154 | ||
155 | /* We only want type-valued template parameters in the hash. */ | |
156 | if (SYMBOL_CLASS (TYPE_TEMPLATE_ARGUMENT (t, i)) != LOC_TYPEDEF) | |
157 | continue; | |
158 | ||
159 | tf = XOBNEW (&table->storage, struct typedef_field); | |
160 | tf->name = SYMBOL_LINKAGE_NAME (TYPE_TEMPLATE_ARGUMENT (t, i)); | |
161 | tf->type = SYMBOL_TYPE (TYPE_TEMPLATE_ARGUMENT (t, i)); | |
162 | ||
163 | slot = htab_find_slot (table->table, tf, INSERT); | |
164 | if (*slot == NULL) | |
165 | *slot = tf; | |
166 | } | |
167 | } | |
168 | ||
169 | /* Create a new typedef-lookup hash table. */ | |
170 | ||
171 | struct typedef_hash_table * | |
172 | create_typedef_hash (void) | |
173 | { | |
174 | struct typedef_hash_table *result; | |
175 | ||
176 | result = XNEW (struct typedef_hash_table); | |
177 | result->table = htab_create_alloc (10, hash_typedef_field, eq_typedef_field, | |
178 | NULL, xcalloc, xfree); | |
179 | obstack_init (&result->storage); | |
180 | ||
181 | return result; | |
182 | } | |
183 | ||
184 | /* Free a typedef field table. */ | |
185 | ||
186 | void | |
187 | free_typedef_hash (struct typedef_hash_table *table) | |
188 | { | |
189 | if (table != NULL) | |
190 | { | |
191 | htab_delete (table->table); | |
192 | obstack_free (&table->storage, NULL); | |
193 | xfree (table); | |
194 | } | |
195 | } | |
196 | ||
197 | /* A cleanup for freeing a typedef_hash_table. */ | |
198 | ||
199 | static void | |
200 | do_free_typedef_hash (void *arg) | |
201 | { | |
202 | free_typedef_hash (arg); | |
203 | } | |
204 | ||
205 | /* Return a new cleanup that frees TABLE. */ | |
206 | ||
207 | struct cleanup * | |
208 | make_cleanup_free_typedef_hash (struct typedef_hash_table *table) | |
209 | { | |
210 | return make_cleanup (do_free_typedef_hash, table); | |
211 | } | |
212 | ||
213 | /* Helper function for copy_typedef_hash. */ | |
214 | ||
215 | static int | |
216 | copy_typedef_hash_element (void **slot, void *nt) | |
217 | { | |
218 | htab_t new_table = nt; | |
219 | void **new_slot; | |
220 | ||
221 | new_slot = htab_find_slot (new_table, *slot, INSERT); | |
222 | if (*new_slot == NULL) | |
223 | *new_slot = *slot; | |
224 | ||
225 | return 1; | |
226 | } | |
227 | ||
228 | /* Copy a typedef hash. */ | |
229 | ||
230 | struct typedef_hash_table * | |
231 | copy_typedef_hash (struct typedef_hash_table *table) | |
232 | { | |
233 | struct typedef_hash_table *result; | |
234 | ||
235 | if (table == NULL) | |
236 | return NULL; | |
237 | ||
238 | result = create_typedef_hash (); | |
239 | htab_traverse_noresize (table->table, copy_typedef_hash_element, | |
240 | result->table); | |
241 | return result; | |
242 | } | |
243 | ||
18a9fc12 TT |
244 | /* A cleanup to free the global typedef hash. */ |
245 | ||
246 | static void | |
247 | do_free_global_table (void *arg) | |
248 | { | |
249 | struct type_print_options *flags = arg; | |
250 | ||
251 | free_typedef_hash (flags->global_typedefs); | |
252 | free_type_printers (flags->global_printers); | |
253 | } | |
254 | ||
255 | /* Create the global typedef hash. */ | |
256 | ||
257 | static struct cleanup * | |
258 | create_global_typedef_table (struct type_print_options *flags) | |
259 | { | |
260 | gdb_assert (flags->global_typedefs == NULL && flags->global_printers == NULL); | |
261 | flags->global_typedefs = create_typedef_hash (); | |
262 | flags->global_printers = start_type_printers (); | |
263 | return make_cleanup (do_free_global_table, flags); | |
264 | } | |
265 | ||
266 | /* Look up the type T in the global typedef hash. If it is found, | |
267 | return the typedef name. If it is not found, apply the | |
268 | type-printers, if any, given by start_type_printers and return the | |
269 | result. A NULL return means that the name was not found. */ | |
270 | ||
271 | static const char * | |
272 | find_global_typedef (const struct type_print_options *flags, | |
273 | struct type *t) | |
274 | { | |
275 | char *applied; | |
276 | void **slot; | |
277 | struct typedef_field tf, *new_tf; | |
278 | ||
279 | if (flags->global_typedefs == NULL) | |
280 | return NULL; | |
281 | ||
282 | tf.name = NULL; | |
283 | tf.type = t; | |
284 | ||
285 | slot = htab_find_slot (flags->global_typedefs->table, &tf, INSERT); | |
286 | if (*slot != NULL) | |
287 | { | |
288 | new_tf = *slot; | |
289 | return new_tf->name; | |
290 | } | |
291 | ||
292 | /* Put an entry into the hash table now, in case apply_type_printers | |
293 | recurses. */ | |
294 | new_tf = XOBNEW (&flags->global_typedefs->storage, struct typedef_field); | |
295 | new_tf->name = NULL; | |
296 | new_tf->type = t; | |
297 | ||
298 | *slot = new_tf; | |
299 | ||
300 | applied = apply_type_printers (flags->global_printers, t); | |
301 | ||
302 | if (applied != NULL) | |
303 | { | |
304 | new_tf->name = obstack_copy0 (&flags->global_typedefs->storage, applied, | |
305 | strlen (applied)); | |
306 | xfree (applied); | |
307 | } | |
308 | ||
309 | return new_tf->name; | |
310 | } | |
311 | ||
bd69fc68 TT |
312 | /* Look up the type T in the typedef hash table in with FLAGS. If T |
313 | is in the table, return its short (class-relative) typedef name. | |
314 | Otherwise return NULL. If the table is NULL, this always returns | |
315 | NULL. */ | |
316 | ||
317 | const char * | |
318 | find_typedef_in_hash (const struct type_print_options *flags, struct type *t) | |
319 | { | |
18a9fc12 TT |
320 | if (flags->local_typedefs != NULL) |
321 | { | |
322 | struct typedef_field tf, *found; | |
bd69fc68 | 323 | |
18a9fc12 TT |
324 | tf.name = NULL; |
325 | tf.type = t; | |
326 | found = htab_find (flags->local_typedefs->table, &tf); | |
bd69fc68 | 327 | |
18a9fc12 TT |
328 | if (found != NULL) |
329 | return found->name; | |
330 | } | |
bd69fc68 | 331 | |
18a9fc12 | 332 | return find_global_typedef (flags, t); |
bd69fc68 TT |
333 | } |
334 | ||
335 | \f | |
336 | ||
a5238fbc PM |
337 | /* Print a description of a type in the format of a |
338 | typedef for the current language. | |
c378eb4e | 339 | NEW is the new name for a type TYPE. */ |
a5238fbc PM |
340 | |
341 | void | |
342 | typedef_print (struct type *type, struct symbol *new, struct ui_file *stream) | |
343 | { | |
5c6ce71d TT |
344 | LA_PRINT_TYPEDEF (type, new, stream); |
345 | } | |
346 | ||
347 | /* The default way to print a typedef. */ | |
348 | ||
349 | void | |
350 | default_print_typedef (struct type *type, struct symbol *new_symbol, | |
351 | struct ui_file *stream) | |
352 | { | |
353 | error (_("Language not supported.")); | |
a5238fbc PM |
354 | } |
355 | ||
c906108c SS |
356 | /* Print a description of a type TYPE in the form of a declaration of a |
357 | variable named VARSTRING. (VARSTRING is demangled if necessary.) | |
358 | Output goes to STREAM (via stdio). | |
359 | If SHOW is positive, we show the contents of the outermost level | |
360 | of structure even if there is a type name that could be used instead. | |
361 | If SHOW is negative, we never show the details of elements' types. */ | |
362 | ||
363 | void | |
0d5cff50 | 364 | type_print (struct type *type, const char *varstring, struct ui_file *stream, |
fba45db2 | 365 | int show) |
c906108c | 366 | { |
79d43c61 | 367 | LA_PRINT_TYPE (type, varstring, stream, show, 0, &default_ptype_flags); |
c906108c SS |
368 | } |
369 | ||
ae6a3a4c TJB |
370 | /* Print TYPE to a string, returning it. The caller is responsible for |
371 | freeing the string. */ | |
372 | ||
373 | char * | |
374 | type_to_string (struct type *type) | |
375 | { | |
376 | char *s = NULL; | |
ae6a3a4c TJB |
377 | struct ui_file *stb; |
378 | struct cleanup *old_chain; | |
379 | volatile struct gdb_exception except; | |
380 | ||
381 | stb = mem_fileopen (); | |
382 | old_chain = make_cleanup_ui_file_delete (stb); | |
383 | ||
384 | TRY_CATCH (except, RETURN_MASK_ALL) | |
385 | { | |
386 | type_print (type, "", stb, -1); | |
759ef836 | 387 | s = ui_file_xstrdup (stb, NULL); |
ae6a3a4c TJB |
388 | } |
389 | if (except.reason < 0) | |
390 | s = NULL; | |
391 | ||
392 | do_cleanups (old_chain); | |
393 | ||
394 | return s; | |
395 | } | |
396 | ||
c906108c SS |
397 | /* Print type of EXP, or last thing in value history if EXP == NULL. |
398 | show is passed to type_print. */ | |
399 | ||
400 | static void | |
fba45db2 | 401 | whatis_exp (char *exp, int show) |
c906108c SS |
402 | { |
403 | struct expression *expr; | |
3d6d86c6 | 404 | struct value *val; |
18a9fc12 | 405 | struct cleanup *old_chain; |
c5aa993b | 406 | struct type *real_type = NULL; |
070ad9f0 | 407 | struct type *type; |
c906108c SS |
408 | int full = 0; |
409 | int top = -1; | |
410 | int using_enc = 0; | |
79a45b7d | 411 | struct value_print_options opts; |
53342f27 | 412 | struct type_print_options flags = default_ptype_flags; |
c906108c | 413 | |
18a9fc12 TT |
414 | old_chain = make_cleanup (null_cleanup, NULL); |
415 | ||
c906108c SS |
416 | if (exp) |
417 | { | |
53342f27 TT |
418 | if (*exp == '/') |
419 | { | |
420 | int seen_one = 0; | |
421 | ||
422 | for (++exp; *exp && !isspace (*exp); ++exp) | |
423 | { | |
424 | switch (*exp) | |
425 | { | |
426 | case 'r': | |
427 | flags.raw = 1; | |
428 | break; | |
429 | case 'm': | |
430 | flags.print_methods = 0; | |
431 | break; | |
432 | case 'M': | |
433 | flags.print_methods = 1; | |
434 | break; | |
435 | case 't': | |
436 | flags.print_typedefs = 0; | |
437 | break; | |
438 | case 'T': | |
439 | flags.print_typedefs = 1; | |
440 | break; | |
441 | default: | |
442 | error (_("unrecognized flag '%c'"), *exp); | |
443 | } | |
444 | seen_one = 1; | |
445 | } | |
446 | ||
447 | if (!*exp && !seen_one) | |
448 | error (_("flag expected")); | |
449 | if (!isspace (*exp)) | |
450 | error (_("expected space after format")); | |
451 | exp = skip_spaces (exp); | |
452 | } | |
453 | ||
c906108c | 454 | expr = parse_expression (exp); |
18a9fc12 | 455 | make_cleanup (free_current_contents, &expr); |
c906108c SS |
456 | val = evaluate_type (expr); |
457 | } | |
458 | else | |
459 | val = access_value_history (0); | |
460 | ||
df407dfe | 461 | type = value_type (val); |
070ad9f0 | 462 | |
79a45b7d TT |
463 | get_user_print_options (&opts); |
464 | if (opts.objectprint) | |
070ad9f0 | 465 | { |
41808ebe DE |
466 | if (((TYPE_CODE (type) == TYPE_CODE_PTR) |
467 | || (TYPE_CODE (type) == TYPE_CODE_REF)) | |
468 | && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CLASS)) | |
dfcee124 | 469 | real_type = value_rtti_indirect_type (val, &full, &top, &using_enc); |
070ad9f0 | 470 | else if (TYPE_CODE (type) == TYPE_CODE_CLASS) |
41808ebe | 471 | real_type = value_rtti_type (val, &full, &top, &using_enc); |
070ad9f0 | 472 | } |
c906108c SS |
473 | |
474 | printf_filtered ("type = "); | |
475 | ||
18a9fc12 TT |
476 | if (!flags.raw) |
477 | create_global_typedef_table (&flags); | |
478 | ||
070ad9f0 DB |
479 | if (real_type) |
480 | { | |
481 | printf_filtered ("/* real type = "); | |
482 | type_print (real_type, "", gdb_stdout, -1); | |
483 | if (! full) | |
484 | printf_filtered (" (incomplete object)"); | |
485 | printf_filtered (" */\n"); | |
486 | } | |
c906108c | 487 | |
53342f27 | 488 | LA_PRINT_TYPE (type, "", gdb_stdout, show, 0, &flags); |
c906108c SS |
489 | printf_filtered ("\n"); |
490 | ||
18a9fc12 | 491 | do_cleanups (old_chain); |
c906108c SS |
492 | } |
493 | ||
c906108c | 494 | static void |
fba45db2 | 495 | whatis_command (char *exp, int from_tty) |
c906108c SS |
496 | { |
497 | /* Most of the time users do not want to see all the fields | |
498 | in a structure. If they do they can use the "ptype" command. | |
499 | Hence the "-1" below. */ | |
500 | whatis_exp (exp, -1); | |
501 | } | |
502 | ||
c906108c SS |
503 | /* TYPENAME is either the name of a type, or an expression. */ |
504 | ||
c906108c | 505 | static void |
fba45db2 | 506 | ptype_command (char *typename, int from_tty) |
c906108c | 507 | { |
d843c49c | 508 | whatis_exp (typename, 1); |
c906108c SS |
509 | } |
510 | ||
511 | /* Print integral scalar data VAL, of type TYPE, onto stdio stream STREAM. | |
512 | Used to print data from type structures in a specified type. For example, | |
513 | array bounds may be characters or booleans in some languages, and this | |
514 | allows the ranges to be printed in their "natural" form rather than as | |
515 | decimal integer values. | |
516 | ||
517 | FIXME: This is here simply because only the type printing routines | |
518 | currently use it, and it wasn't clear if it really belonged somewhere | |
519 | else (like printcmd.c). There are a lot of other gdb routines that do | |
520 | something similar, but they are generally concerned with printing values | |
41808ebe | 521 | that come from the inferior in target byte order and target size. */ |
c906108c SS |
522 | |
523 | void | |
fba45db2 | 524 | print_type_scalar (struct type *type, LONGEST val, struct ui_file *stream) |
c906108c SS |
525 | { |
526 | unsigned int i; | |
527 | unsigned len; | |
528 | ||
529 | CHECK_TYPEDEF (type); | |
530 | ||
531 | switch (TYPE_CODE (type)) | |
532 | { | |
533 | ||
534 | case TYPE_CODE_ENUM: | |
535 | len = TYPE_NFIELDS (type); | |
536 | for (i = 0; i < len; i++) | |
537 | { | |
14e75d8e | 538 | if (TYPE_FIELD_ENUMVAL (type, i) == val) |
c906108c SS |
539 | { |
540 | break; | |
541 | } | |
542 | } | |
543 | if (i < len) | |
544 | { | |
545 | fputs_filtered (TYPE_FIELD_NAME (type, i), stream); | |
546 | } | |
547 | else | |
548 | { | |
549 | print_longest (stream, 'd', 0, val); | |
550 | } | |
551 | break; | |
552 | ||
553 | case TYPE_CODE_INT: | |
554 | print_longest (stream, TYPE_UNSIGNED (type) ? 'u' : 'd', 0, val); | |
555 | break; | |
556 | ||
557 | case TYPE_CODE_CHAR: | |
6c7a06a3 | 558 | LA_PRINT_CHAR ((unsigned char) val, type, stream); |
c906108c SS |
559 | break; |
560 | ||
561 | case TYPE_CODE_BOOL: | |
562 | fprintf_filtered (stream, val ? "TRUE" : "FALSE"); | |
563 | break; | |
564 | ||
565 | case TYPE_CODE_RANGE: | |
566 | print_type_scalar (TYPE_TARGET_TYPE (type), val, stream); | |
567 | return; | |
568 | ||
569 | case TYPE_CODE_UNDEF: | |
570 | case TYPE_CODE_PTR: | |
571 | case TYPE_CODE_ARRAY: | |
572 | case TYPE_CODE_STRUCT: | |
573 | case TYPE_CODE_UNION: | |
574 | case TYPE_CODE_FUNC: | |
575 | case TYPE_CODE_FLT: | |
576 | case TYPE_CODE_VOID: | |
577 | case TYPE_CODE_SET: | |
578 | case TYPE_CODE_STRING: | |
579 | case TYPE_CODE_ERROR: | |
0d5de010 DJ |
580 | case TYPE_CODE_MEMBERPTR: |
581 | case TYPE_CODE_METHODPTR: | |
c906108c SS |
582 | case TYPE_CODE_METHOD: |
583 | case TYPE_CODE_REF: | |
5c4e30ca | 584 | case TYPE_CODE_NAMESPACE: |
8a3fe4f8 | 585 | error (_("internal error: unhandled type in print_type_scalar")); |
c906108c SS |
586 | break; |
587 | ||
588 | default: | |
8a3fe4f8 | 589 | error (_("Invalid type code in symbol table.")); |
c906108c SS |
590 | } |
591 | gdb_flush (stream); | |
592 | } | |
593 | ||
c906108c SS |
594 | /* Dump details of a type specified either directly or indirectly. |
595 | Uses the same sort of type lookup mechanism as ptype_command() | |
41808ebe | 596 | and whatis_command(). */ |
c906108c SS |
597 | |
598 | void | |
fba45db2 | 599 | maintenance_print_type (char *typename, int from_tty) |
c906108c | 600 | { |
3d6d86c6 | 601 | struct value *val; |
52f0bd74 AC |
602 | struct type *type; |
603 | struct cleanup *old_chain; | |
c906108c SS |
604 | struct expression *expr; |
605 | ||
606 | if (typename != NULL) | |
c5aa993b JM |
607 | { |
608 | expr = parse_expression (typename); | |
c13c43fd | 609 | old_chain = make_cleanup (free_current_contents, &expr); |
c5aa993b JM |
610 | if (expr->elts[0].opcode == OP_TYPE) |
611 | { | |
c378eb4e | 612 | /* The user expression names a type directly, just use that type. */ |
c5aa993b JM |
613 | type = expr->elts[1].type; |
614 | } | |
615 | else | |
616 | { | |
617 | /* The user expression may name a type indirectly by naming an | |
c378eb4e | 618 | object of that type. Find that indirectly named type. */ |
c5aa993b | 619 | val = evaluate_type (expr); |
df407dfe | 620 | type = value_type (val); |
c5aa993b JM |
621 | } |
622 | if (type != NULL) | |
623 | { | |
624 | recursive_dump_type (type, 0); | |
625 | } | |
626 | do_cleanups (old_chain); | |
627 | } | |
c906108c | 628 | } |
c906108c | 629 | \f |
c5aa993b | 630 | |
53342f27 TT |
631 | struct cmd_list_element *setprinttypelist; |
632 | ||
633 | struct cmd_list_element *showprinttypelist; | |
634 | ||
635 | static void | |
636 | set_print_type (char *arg, int from_tty) | |
637 | { | |
638 | printf_unfiltered ( | |
639 | "\"set print type\" must be followed by the name of a subcommand.\n"); | |
640 | help_list (setprintlist, "set print type ", -1, gdb_stdout); | |
641 | } | |
642 | ||
643 | static void | |
644 | show_print_type (char *args, int from_tty) | |
645 | { | |
646 | cmd_show_list (showprinttypelist, from_tty, ""); | |
647 | } | |
648 | ||
649 | static int print_methods = 1; | |
650 | ||
651 | static void | |
652 | set_print_type_methods (char *args, int from_tty, struct cmd_list_element *c) | |
653 | { | |
654 | default_ptype_flags.print_methods = print_methods; | |
655 | } | |
656 | ||
657 | static void | |
658 | show_print_type_methods (struct ui_file *file, int from_tty, | |
659 | struct cmd_list_element *c, const char *value) | |
660 | { | |
661 | fprintf_filtered (file, _("Printing of methods defined in a class in %s\n"), | |
662 | value); | |
663 | } | |
664 | ||
665 | static int print_typedefs = 1; | |
666 | ||
667 | static void | |
668 | set_print_type_typedefs (char *args, int from_tty, struct cmd_list_element *c) | |
669 | { | |
670 | default_ptype_flags.print_typedefs = print_typedefs; | |
671 | } | |
672 | ||
673 | static void | |
674 | show_print_type_typedefs (struct ui_file *file, int from_tty, | |
675 | struct cmd_list_element *c, const char *value) | |
676 | { | |
677 | fprintf_filtered (file, _("Printing of typedefs defined in a class in %s\n"), | |
678 | value); | |
679 | } | |
680 | ||
c906108c | 681 | void |
fba45db2 | 682 | _initialize_typeprint (void) |
c906108c | 683 | { |
4fc5d43e TT |
684 | struct cmd_list_element *c; |
685 | ||
686 | c = add_com ("ptype", class_vars, ptype_command, _("\ | |
1bedd215 | 687 | Print definition of type TYPE.\n\ |
53342f27 | 688 | Usage: ptype[/FLAGS] TYPE-NAME | EXPRESSION\n\ |
c906108c SS |
689 | Argument may be a type name defined by typedef, or \"struct STRUCT-TAG\"\n\ |
690 | or \"class CLASS-NAME\" or \"union UNION-TAG\" or \"enum ENUM-TAG\".\n\ | |
11081198 | 691 | The selected stack frame's lexical context is used to look up the name.\n\ |
53342f27 TT |
692 | Contrary to \"whatis\", \"ptype\" always unrolls any typedefs.\n\ |
693 | \n\ | |
694 | Available FLAGS are:\n\ | |
695 | /r print in \"raw\" form; do not substitute typedefs\n\ | |
696 | /m do not print methods defined in a class\n\ | |
697 | /M print methods defined in a class\n\ | |
698 | /t do not print typedefs defined in a class\n\ | |
699 | /T print typedefs defined in a class")); | |
4fc5d43e | 700 | set_cmd_completer (c, expression_completer); |
c906108c | 701 | |
4fc5d43e TT |
702 | c = add_com ("whatis", class_vars, whatis_command, |
703 | _("Print data type of expression EXP.\n\ | |
11081198 | 704 | Only one level of typedefs is unrolled. See also \"ptype\".")); |
4fc5d43e | 705 | set_cmd_completer (c, expression_completer); |
53342f27 TT |
706 | |
707 | add_prefix_cmd ("type", no_class, show_print_type, | |
708 | _("Generic command for showing type-printing settings."), | |
709 | &showprinttypelist, "show print type ", 0, &showprintlist); | |
710 | add_prefix_cmd ("type", no_class, set_print_type, | |
711 | _("Generic command for setting how types print."), | |
712 | &setprinttypelist, "show print type ", 0, &setprintlist); | |
713 | ||
714 | add_setshow_boolean_cmd ("methods", no_class, &print_methods, | |
715 | _("\ | |
716 | Set printing of methods defined in classes."), _("\ | |
717 | Show printing of methods defined in classes."), NULL, | |
718 | set_print_type_methods, | |
719 | show_print_type_methods, | |
720 | &setprinttypelist, &showprinttypelist); | |
721 | add_setshow_boolean_cmd ("typedefs", no_class, &print_typedefs, | |
722 | _("\ | |
723 | Set printing of typedefs defined in classes."), _("\ | |
724 | Show printing of typedefs defined in classes."), NULL, | |
725 | set_print_type_typedefs, | |
726 | show_print_type_typedefs, | |
727 | &setprinttypelist, &showprinttypelist); | |
c906108c | 728 | } |