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c906108c | 1 | /* Language independent support for printing types for GDB, the GNU debugger. |
1bac305b | 2 | |
61baf725 | 3 | Copyright (C) 1986-2017 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
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 | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
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. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
04ea0df1 | 21 | #include "gdb_obstack.h" |
c906108c SS |
22 | #include "bfd.h" /* Binary File Description */ |
23 | #include "symtab.h" | |
24 | #include "gdbtypes.h" | |
25 | #include "expression.h" | |
26 | #include "value.h" | |
27 | #include "gdbcore.h" | |
28 | #include "command.h" | |
29 | #include "gdbcmd.h" | |
30 | #include "target.h" | |
31 | #include "language.h" | |
015a42b4 | 32 | #include "cp-abi.h" |
b9362cc7 | 33 | #include "typeprint.h" |
79a45b7d | 34 | #include "valprint.h" |
53342f27 TT |
35 | #include <ctype.h> |
36 | #include "cli/cli-utils.h" | |
6dddc817 | 37 | #include "extension.h" |
4fc5d43e | 38 | #include "completer.h" |
c906108c | 39 | |
a14ed312 | 40 | static void ptype_command (char *, int); |
c906108c | 41 | |
a14ed312 | 42 | static void whatis_command (char *, int); |
c906108c | 43 | |
a14ed312 | 44 | static void whatis_exp (char *, int); |
c906108c | 45 | |
79d43c61 TT |
46 | const struct type_print_options type_print_raw_options = |
47 | { | |
53342f27 TT |
48 | 1, /* raw */ |
49 | 1, /* print_methods */ | |
bd69fc68 | 50 | 1, /* print_typedefs */ |
18a9fc12 TT |
51 | NULL, /* local_typedefs */ |
52 | NULL, /* global_table */ | |
53 | NULL /* global_printers */ | |
79d43c61 TT |
54 | }; |
55 | ||
56 | /* The default flags for 'ptype' and 'whatis'. */ | |
57 | ||
58 | static struct type_print_options default_ptype_flags = | |
59 | { | |
53342f27 TT |
60 | 0, /* raw */ |
61 | 1, /* print_methods */ | |
bd69fc68 | 62 | 1, /* print_typedefs */ |
18a9fc12 TT |
63 | NULL, /* local_typedefs */ |
64 | NULL, /* global_table */ | |
65 | NULL /* global_printers */ | |
79d43c61 | 66 | }; |
5c6ce71d | 67 | |
53342f27 TT |
68 | \f |
69 | ||
bd69fc68 TT |
70 | /* A hash table holding typedef_field objects. This is more |
71 | complicated than an ordinary hash because it must also track the | |
72 | lifetime of some -- but not all -- of the contained objects. */ | |
73 | ||
74 | struct typedef_hash_table | |
75 | { | |
76 | /* The actual hash table. */ | |
77 | htab_t table; | |
78 | ||
79 | /* Storage for typedef_field objects that must be synthesized. */ | |
80 | struct obstack storage; | |
81 | }; | |
82 | ||
83 | /* A hash function for a typedef_field. */ | |
84 | ||
85 | static hashval_t | |
86 | hash_typedef_field (const void *p) | |
87 | { | |
19ba03f4 | 88 | const struct typedef_field *tf = (const struct typedef_field *) p; |
bd69fc68 TT |
89 | struct type *t = check_typedef (tf->type); |
90 | ||
91 | return htab_hash_string (TYPE_SAFE_NAME (t)); | |
92 | } | |
93 | ||
94 | /* An equality function for a typedef field. */ | |
95 | ||
96 | static int | |
97 | eq_typedef_field (const void *a, const void *b) | |
98 | { | |
19ba03f4 SM |
99 | const struct typedef_field *tfa = (const struct typedef_field *) a; |
100 | const struct typedef_field *tfb = (const struct typedef_field *) b; | |
bd69fc68 TT |
101 | |
102 | return types_equal (tfa->type, tfb->type); | |
103 | } | |
104 | ||
105 | /* Add typedefs from T to the hash table TABLE. */ | |
106 | ||
107 | void | |
108 | recursively_update_typedef_hash (struct typedef_hash_table *table, | |
109 | struct type *t) | |
110 | { | |
111 | int i; | |
112 | ||
113 | if (table == NULL) | |
114 | return; | |
115 | ||
116 | for (i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (t); ++i) | |
117 | { | |
118 | struct typedef_field *tdef = &TYPE_TYPEDEF_FIELD (t, i); | |
119 | void **slot; | |
120 | ||
121 | slot = htab_find_slot (table->table, tdef, INSERT); | |
122 | /* Only add a given typedef name once. Really this shouldn't | |
123 | happen; but it is safe enough to do the updates breadth-first | |
124 | and thus use the most specific typedef. */ | |
125 | if (*slot == NULL) | |
126 | *slot = tdef; | |
127 | } | |
128 | ||
129 | /* Recurse into superclasses. */ | |
130 | for (i = 0; i < TYPE_N_BASECLASSES (t); ++i) | |
131 | recursively_update_typedef_hash (table, TYPE_BASECLASS (t, i)); | |
132 | } | |
133 | ||
134 | /* Add template parameters from T to the typedef hash TABLE. */ | |
135 | ||
136 | void | |
137 | add_template_parameters (struct typedef_hash_table *table, struct type *t) | |
138 | { | |
139 | int i; | |
140 | ||
141 | if (table == NULL) | |
142 | return; | |
143 | ||
144 | for (i = 0; i < TYPE_N_TEMPLATE_ARGUMENTS (t); ++i) | |
145 | { | |
146 | struct typedef_field *tf; | |
147 | void **slot; | |
148 | ||
149 | /* We only want type-valued template parameters in the hash. */ | |
150 | if (SYMBOL_CLASS (TYPE_TEMPLATE_ARGUMENT (t, i)) != LOC_TYPEDEF) | |
151 | continue; | |
152 | ||
153 | tf = XOBNEW (&table->storage, struct typedef_field); | |
154 | tf->name = SYMBOL_LINKAGE_NAME (TYPE_TEMPLATE_ARGUMENT (t, i)); | |
155 | tf->type = SYMBOL_TYPE (TYPE_TEMPLATE_ARGUMENT (t, i)); | |
156 | ||
157 | slot = htab_find_slot (table->table, tf, INSERT); | |
158 | if (*slot == NULL) | |
159 | *slot = tf; | |
160 | } | |
161 | } | |
162 | ||
163 | /* Create a new typedef-lookup hash table. */ | |
164 | ||
165 | struct typedef_hash_table * | |
166 | create_typedef_hash (void) | |
167 | { | |
168 | struct typedef_hash_table *result; | |
169 | ||
170 | result = XNEW (struct typedef_hash_table); | |
171 | result->table = htab_create_alloc (10, hash_typedef_field, eq_typedef_field, | |
172 | NULL, xcalloc, xfree); | |
173 | obstack_init (&result->storage); | |
174 | ||
175 | return result; | |
176 | } | |
177 | ||
178 | /* Free a typedef field table. */ | |
179 | ||
180 | void | |
181 | free_typedef_hash (struct typedef_hash_table *table) | |
182 | { | |
183 | if (table != NULL) | |
184 | { | |
185 | htab_delete (table->table); | |
186 | obstack_free (&table->storage, NULL); | |
187 | xfree (table); | |
188 | } | |
189 | } | |
190 | ||
191 | /* A cleanup for freeing a typedef_hash_table. */ | |
192 | ||
193 | static void | |
194 | do_free_typedef_hash (void *arg) | |
195 | { | |
19ba03f4 | 196 | free_typedef_hash ((struct typedef_hash_table *) arg); |
bd69fc68 TT |
197 | } |
198 | ||
199 | /* Return a new cleanup that frees TABLE. */ | |
200 | ||
201 | struct cleanup * | |
202 | make_cleanup_free_typedef_hash (struct typedef_hash_table *table) | |
203 | { | |
204 | return make_cleanup (do_free_typedef_hash, table); | |
205 | } | |
206 | ||
207 | /* Helper function for copy_typedef_hash. */ | |
208 | ||
209 | static int | |
210 | copy_typedef_hash_element (void **slot, void *nt) | |
211 | { | |
19ba03f4 | 212 | htab_t new_table = (htab_t) nt; |
bd69fc68 TT |
213 | void **new_slot; |
214 | ||
215 | new_slot = htab_find_slot (new_table, *slot, INSERT); | |
216 | if (*new_slot == NULL) | |
217 | *new_slot = *slot; | |
218 | ||
219 | return 1; | |
220 | } | |
221 | ||
222 | /* Copy a typedef hash. */ | |
223 | ||
224 | struct typedef_hash_table * | |
225 | copy_typedef_hash (struct typedef_hash_table *table) | |
226 | { | |
227 | struct typedef_hash_table *result; | |
228 | ||
229 | if (table == NULL) | |
230 | return NULL; | |
231 | ||
232 | result = create_typedef_hash (); | |
233 | htab_traverse_noresize (table->table, copy_typedef_hash_element, | |
234 | result->table); | |
235 | return result; | |
236 | } | |
237 | ||
18a9fc12 TT |
238 | /* A cleanup to free the global typedef hash. */ |
239 | ||
240 | static void | |
241 | do_free_global_table (void *arg) | |
242 | { | |
19ba03f4 | 243 | struct type_print_options *flags = (struct type_print_options *) arg; |
18a9fc12 TT |
244 | |
245 | free_typedef_hash (flags->global_typedefs); | |
6dddc817 | 246 | free_ext_lang_type_printers (flags->global_printers); |
18a9fc12 TT |
247 | } |
248 | ||
249 | /* Create the global typedef hash. */ | |
250 | ||
251 | static struct cleanup * | |
252 | create_global_typedef_table (struct type_print_options *flags) | |
253 | { | |
254 | gdb_assert (flags->global_typedefs == NULL && flags->global_printers == NULL); | |
255 | flags->global_typedefs = create_typedef_hash (); | |
6dddc817 | 256 | flags->global_printers = start_ext_lang_type_printers (); |
18a9fc12 TT |
257 | return make_cleanup (do_free_global_table, flags); |
258 | } | |
259 | ||
260 | /* Look up the type T in the global typedef hash. If it is found, | |
261 | return the typedef name. If it is not found, apply the | |
6dddc817 | 262 | type-printers, if any, given by start_script_type_printers and return the |
18a9fc12 TT |
263 | result. A NULL return means that the name was not found. */ |
264 | ||
265 | static const char * | |
266 | find_global_typedef (const struct type_print_options *flags, | |
267 | struct type *t) | |
268 | { | |
269 | char *applied; | |
270 | void **slot; | |
271 | struct typedef_field tf, *new_tf; | |
272 | ||
273 | if (flags->global_typedefs == NULL) | |
274 | return NULL; | |
275 | ||
276 | tf.name = NULL; | |
277 | tf.type = t; | |
278 | ||
279 | slot = htab_find_slot (flags->global_typedefs->table, &tf, INSERT); | |
280 | if (*slot != NULL) | |
281 | { | |
19ba03f4 | 282 | new_tf = (struct typedef_field *) *slot; |
18a9fc12 TT |
283 | return new_tf->name; |
284 | } | |
285 | ||
9b94fcf1 DE |
286 | /* Put an entry into the hash table now, in case |
287 | apply_ext_lang_type_printers recurses. */ | |
18a9fc12 TT |
288 | new_tf = XOBNEW (&flags->global_typedefs->storage, struct typedef_field); |
289 | new_tf->name = NULL; | |
290 | new_tf->type = t; | |
291 | ||
292 | *slot = new_tf; | |
293 | ||
6dddc817 | 294 | applied = apply_ext_lang_type_printers (flags->global_printers, t); |
18a9fc12 TT |
295 | |
296 | if (applied != NULL) | |
297 | { | |
224c3ddb SM |
298 | new_tf->name |
299 | = (const char *) obstack_copy0 (&flags->global_typedefs->storage, | |
300 | applied, strlen (applied)); | |
18a9fc12 TT |
301 | xfree (applied); |
302 | } | |
303 | ||
304 | return new_tf->name; | |
305 | } | |
306 | ||
bd69fc68 TT |
307 | /* Look up the type T in the typedef hash table in with FLAGS. If T |
308 | is in the table, return its short (class-relative) typedef name. | |
309 | Otherwise return NULL. If the table is NULL, this always returns | |
310 | NULL. */ | |
311 | ||
312 | const char * | |
313 | find_typedef_in_hash (const struct type_print_options *flags, struct type *t) | |
314 | { | |
18a9fc12 TT |
315 | if (flags->local_typedefs != NULL) |
316 | { | |
317 | struct typedef_field tf, *found; | |
bd69fc68 | 318 | |
18a9fc12 TT |
319 | tf.name = NULL; |
320 | tf.type = t; | |
19ba03f4 SM |
321 | found = (struct typedef_field *) htab_find (flags->local_typedefs->table, |
322 | &tf); | |
bd69fc68 | 323 | |
18a9fc12 TT |
324 | if (found != NULL) |
325 | return found->name; | |
326 | } | |
bd69fc68 | 327 | |
18a9fc12 | 328 | return find_global_typedef (flags, t); |
bd69fc68 TT |
329 | } |
330 | ||
331 | \f | |
332 | ||
a5238fbc PM |
333 | /* Print a description of a type in the format of a |
334 | typedef for the current language. | |
c378eb4e | 335 | NEW is the new name for a type TYPE. */ |
a5238fbc PM |
336 | |
337 | void | |
fe978cb0 | 338 | typedef_print (struct type *type, struct symbol *newobj, struct ui_file *stream) |
a5238fbc | 339 | { |
fe978cb0 | 340 | LA_PRINT_TYPEDEF (type, newobj, stream); |
5c6ce71d TT |
341 | } |
342 | ||
343 | /* The default way to print a typedef. */ | |
344 | ||
345 | void | |
346 | default_print_typedef (struct type *type, struct symbol *new_symbol, | |
347 | struct ui_file *stream) | |
348 | { | |
349 | error (_("Language not supported.")); | |
a5238fbc PM |
350 | } |
351 | ||
c906108c SS |
352 | /* Print a description of a type TYPE in the form of a declaration of a |
353 | variable named VARSTRING. (VARSTRING is demangled if necessary.) | |
354 | Output goes to STREAM (via stdio). | |
355 | If SHOW is positive, we show the contents of the outermost level | |
356 | of structure even if there is a type name that could be used instead. | |
357 | If SHOW is negative, we never show the details of elements' types. */ | |
358 | ||
359 | void | |
0d5cff50 | 360 | type_print (struct type *type, const char *varstring, struct ui_file *stream, |
fba45db2 | 361 | int show) |
c906108c | 362 | { |
79d43c61 | 363 | LA_PRINT_TYPE (type, varstring, stream, show, 0, &default_ptype_flags); |
c906108c SS |
364 | } |
365 | ||
ae6a3a4c TJB |
366 | /* Print TYPE to a string, returning it. The caller is responsible for |
367 | freeing the string. */ | |
368 | ||
2f408ecb | 369 | std::string |
ae6a3a4c TJB |
370 | type_to_string (struct type *type) |
371 | { | |
492d29ea | 372 | TRY |
ae6a3a4c | 373 | { |
d7e74731 PA |
374 | string_file stb; |
375 | ||
376 | type_print (type, "", &stb, -1); | |
377 | return std::move (stb.string ()); | |
ae6a3a4c | 378 | } |
492d29ea PA |
379 | CATCH (except, RETURN_MASK_ALL) |
380 | { | |
492d29ea PA |
381 | } |
382 | END_CATCH | |
ae6a3a4c | 383 | |
d7e74731 | 384 | return {}; |
ae6a3a4c TJB |
385 | } |
386 | ||
7022349d PA |
387 | /* See typeprint.h. */ |
388 | ||
389 | void | |
390 | type_print_unknown_return_type (struct ui_file *stream) | |
391 | { | |
392 | fprintf_filtered (stream, _("<unknown return type>")); | |
393 | } | |
394 | ||
46a4882b PA |
395 | /* See typeprint.h. */ |
396 | ||
397 | void | |
398 | error_unknown_type (const char *sym_print_name) | |
399 | { | |
400 | error (_("'%s' has unknown type; cast it to its declared type"), | |
401 | sym_print_name); | |
402 | } | |
403 | ||
c906108c SS |
404 | /* Print type of EXP, or last thing in value history if EXP == NULL. |
405 | show is passed to type_print. */ | |
406 | ||
407 | static void | |
fba45db2 | 408 | whatis_exp (char *exp, int show) |
c906108c | 409 | { |
3d6d86c6 | 410 | struct value *val; |
18a9fc12 | 411 | struct cleanup *old_chain; |
c5aa993b | 412 | struct type *real_type = NULL; |
070ad9f0 | 413 | struct type *type; |
c906108c | 414 | int full = 0; |
6b850546 | 415 | LONGEST top = -1; |
c906108c | 416 | int using_enc = 0; |
79a45b7d | 417 | struct value_print_options opts; |
53342f27 | 418 | struct type_print_options flags = default_ptype_flags; |
c906108c | 419 | |
18a9fc12 TT |
420 | old_chain = make_cleanup (null_cleanup, NULL); |
421 | ||
c906108c SS |
422 | if (exp) |
423 | { | |
53342f27 TT |
424 | if (*exp == '/') |
425 | { | |
426 | int seen_one = 0; | |
427 | ||
428 | for (++exp; *exp && !isspace (*exp); ++exp) | |
429 | { | |
430 | switch (*exp) | |
431 | { | |
432 | case 'r': | |
433 | flags.raw = 1; | |
434 | break; | |
435 | case 'm': | |
436 | flags.print_methods = 0; | |
437 | break; | |
438 | case 'M': | |
439 | flags.print_methods = 1; | |
440 | break; | |
441 | case 't': | |
442 | flags.print_typedefs = 0; | |
443 | break; | |
444 | case 'T': | |
445 | flags.print_typedefs = 1; | |
446 | break; | |
447 | default: | |
448 | error (_("unrecognized flag '%c'"), *exp); | |
449 | } | |
450 | seen_one = 1; | |
451 | } | |
452 | ||
453 | if (!*exp && !seen_one) | |
454 | error (_("flag expected")); | |
455 | if (!isspace (*exp)) | |
456 | error (_("expected space after format")); | |
457 | exp = skip_spaces (exp); | |
458 | } | |
459 | ||
4d01a485 | 460 | expression_up expr = parse_expression (exp); |
c973d0aa PA |
461 | |
462 | /* The behavior of "whatis" depends on whether the user | |
463 | expression names a type directly, or a language expression | |
464 | (including variable names). If the former, then "whatis" | |
465 | strips one level of typedefs, only. If an expression, | |
466 | "whatis" prints the type of the expression without stripping | |
467 | any typedef level. "ptype" always strips all levels of | |
468 | typedefs. */ | |
469 | if (show == -1 && expr->elts[0].opcode == OP_TYPE) | |
470 | { | |
471 | /* The user expression names a type directly. */ | |
472 | type = expr->elts[1].type; | |
473 | ||
474 | /* If this is a typedef, then find its immediate target. | |
475 | Use check_typedef to resolve stubs, but ignore its result | |
476 | because we do not want to dig past all typedefs. */ | |
477 | check_typedef (type); | |
478 | if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) | |
479 | type = TYPE_TARGET_TYPE (type); | |
480 | } | |
481 | else | |
482 | { | |
483 | /* The user expression names a type indirectly by naming an | |
484 | object or expression of that type. Find that | |
485 | indirectly-named type. */ | |
486 | val = evaluate_type (expr.get ()); | |
487 | type = value_type (val); | |
488 | } | |
c906108c SS |
489 | } |
490 | else | |
c973d0aa PA |
491 | { |
492 | val = access_value_history (0); | |
493 | type = value_type (val); | |
494 | } | |
070ad9f0 | 495 | |
79a45b7d TT |
496 | get_user_print_options (&opts); |
497 | if (opts.objectprint) | |
070ad9f0 | 498 | { |
aa006118 | 499 | if (((TYPE_CODE (type) == TYPE_CODE_PTR) || TYPE_IS_REFERENCE (type)) |
4753d33b | 500 | && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_STRUCT)) |
dfcee124 | 501 | real_type = value_rtti_indirect_type (val, &full, &top, &using_enc); |
4753d33b | 502 | else if (TYPE_CODE (type) == TYPE_CODE_STRUCT) |
41808ebe | 503 | real_type = value_rtti_type (val, &full, &top, &using_enc); |
070ad9f0 | 504 | } |
c906108c SS |
505 | |
506 | printf_filtered ("type = "); | |
507 | ||
18a9fc12 TT |
508 | if (!flags.raw) |
509 | create_global_typedef_table (&flags); | |
510 | ||
070ad9f0 DB |
511 | if (real_type) |
512 | { | |
513 | printf_filtered ("/* real type = "); | |
514 | type_print (real_type, "", gdb_stdout, -1); | |
515 | if (! full) | |
516 | printf_filtered (" (incomplete object)"); | |
517 | printf_filtered (" */\n"); | |
518 | } | |
c906108c | 519 | |
53342f27 | 520 | LA_PRINT_TYPE (type, "", gdb_stdout, show, 0, &flags); |
c906108c SS |
521 | printf_filtered ("\n"); |
522 | ||
18a9fc12 | 523 | do_cleanups (old_chain); |
c906108c SS |
524 | } |
525 | ||
c906108c | 526 | static void |
fba45db2 | 527 | whatis_command (char *exp, int from_tty) |
c906108c SS |
528 | { |
529 | /* Most of the time users do not want to see all the fields | |
530 | in a structure. If they do they can use the "ptype" command. | |
531 | Hence the "-1" below. */ | |
532 | whatis_exp (exp, -1); | |
533 | } | |
534 | ||
c906108c SS |
535 | /* TYPENAME is either the name of a type, or an expression. */ |
536 | ||
c906108c | 537 | static void |
fe978cb0 | 538 | ptype_command (char *type_name, int from_tty) |
c906108c | 539 | { |
fe978cb0 | 540 | whatis_exp (type_name, 1); |
c906108c SS |
541 | } |
542 | ||
543 | /* Print integral scalar data VAL, of type TYPE, onto stdio stream STREAM. | |
544 | Used to print data from type structures in a specified type. For example, | |
545 | array bounds may be characters or booleans in some languages, and this | |
546 | allows the ranges to be printed in their "natural" form rather than as | |
547 | decimal integer values. | |
548 | ||
549 | FIXME: This is here simply because only the type printing routines | |
550 | currently use it, and it wasn't clear if it really belonged somewhere | |
551 | else (like printcmd.c). There are a lot of other gdb routines that do | |
552 | something similar, but they are generally concerned with printing values | |
41808ebe | 553 | that come from the inferior in target byte order and target size. */ |
c906108c SS |
554 | |
555 | void | |
fba45db2 | 556 | print_type_scalar (struct type *type, LONGEST val, struct ui_file *stream) |
c906108c SS |
557 | { |
558 | unsigned int i; | |
559 | unsigned len; | |
560 | ||
f168693b | 561 | type = check_typedef (type); |
c906108c SS |
562 | |
563 | switch (TYPE_CODE (type)) | |
564 | { | |
565 | ||
566 | case TYPE_CODE_ENUM: | |
567 | len = TYPE_NFIELDS (type); | |
568 | for (i = 0; i < len; i++) | |
569 | { | |
14e75d8e | 570 | if (TYPE_FIELD_ENUMVAL (type, i) == val) |
c906108c SS |
571 | { |
572 | break; | |
573 | } | |
574 | } | |
575 | if (i < len) | |
576 | { | |
577 | fputs_filtered (TYPE_FIELD_NAME (type, i), stream); | |
578 | } | |
579 | else | |
580 | { | |
581 | print_longest (stream, 'd', 0, val); | |
582 | } | |
583 | break; | |
584 | ||
585 | case TYPE_CODE_INT: | |
586 | print_longest (stream, TYPE_UNSIGNED (type) ? 'u' : 'd', 0, val); | |
587 | break; | |
588 | ||
589 | case TYPE_CODE_CHAR: | |
6c7a06a3 | 590 | LA_PRINT_CHAR ((unsigned char) val, type, stream); |
c906108c SS |
591 | break; |
592 | ||
593 | case TYPE_CODE_BOOL: | |
594 | fprintf_filtered (stream, val ? "TRUE" : "FALSE"); | |
595 | break; | |
596 | ||
597 | case TYPE_CODE_RANGE: | |
598 | print_type_scalar (TYPE_TARGET_TYPE (type), val, stream); | |
599 | return; | |
600 | ||
601 | case TYPE_CODE_UNDEF: | |
602 | case TYPE_CODE_PTR: | |
603 | case TYPE_CODE_ARRAY: | |
604 | case TYPE_CODE_STRUCT: | |
605 | case TYPE_CODE_UNION: | |
606 | case TYPE_CODE_FUNC: | |
607 | case TYPE_CODE_FLT: | |
608 | case TYPE_CODE_VOID: | |
609 | case TYPE_CODE_SET: | |
610 | case TYPE_CODE_STRING: | |
611 | case TYPE_CODE_ERROR: | |
0d5de010 DJ |
612 | case TYPE_CODE_MEMBERPTR: |
613 | case TYPE_CODE_METHODPTR: | |
c906108c SS |
614 | case TYPE_CODE_METHOD: |
615 | case TYPE_CODE_REF: | |
aa006118 | 616 | case TYPE_CODE_RVALUE_REF: |
5c4e30ca | 617 | case TYPE_CODE_NAMESPACE: |
8a3fe4f8 | 618 | error (_("internal error: unhandled type in print_type_scalar")); |
c906108c SS |
619 | break; |
620 | ||
621 | default: | |
8a3fe4f8 | 622 | error (_("Invalid type code in symbol table.")); |
c906108c SS |
623 | } |
624 | gdb_flush (stream); | |
625 | } | |
626 | ||
c906108c SS |
627 | /* Dump details of a type specified either directly or indirectly. |
628 | Uses the same sort of type lookup mechanism as ptype_command() | |
41808ebe | 629 | and whatis_command(). */ |
c906108c SS |
630 | |
631 | void | |
58971144 | 632 | maintenance_print_type (const char *type_name, int from_tty) |
c906108c | 633 | { |
3d6d86c6 | 634 | struct value *val; |
52f0bd74 | 635 | struct type *type; |
c906108c | 636 | |
fe978cb0 | 637 | if (type_name != NULL) |
c5aa993b | 638 | { |
4d01a485 | 639 | expression_up expr = parse_expression (type_name); |
c5aa993b JM |
640 | if (expr->elts[0].opcode == OP_TYPE) |
641 | { | |
c378eb4e | 642 | /* The user expression names a type directly, just use that type. */ |
c5aa993b JM |
643 | type = expr->elts[1].type; |
644 | } | |
645 | else | |
646 | { | |
647 | /* The user expression may name a type indirectly by naming an | |
c378eb4e | 648 | object of that type. Find that indirectly named type. */ |
4d01a485 | 649 | val = evaluate_type (expr.get ()); |
df407dfe | 650 | type = value_type (val); |
c5aa993b JM |
651 | } |
652 | if (type != NULL) | |
653 | { | |
654 | recursive_dump_type (type, 0); | |
655 | } | |
c5aa993b | 656 | } |
c906108c | 657 | } |
c906108c | 658 | \f |
c5aa993b | 659 | |
53342f27 TT |
660 | struct cmd_list_element *setprinttypelist; |
661 | ||
662 | struct cmd_list_element *showprinttypelist; | |
663 | ||
664 | static void | |
665 | set_print_type (char *arg, int from_tty) | |
666 | { | |
667 | printf_unfiltered ( | |
668 | "\"set print type\" must be followed by the name of a subcommand.\n"); | |
635c7e8a | 669 | help_list (setprintlist, "set print type ", all_commands, gdb_stdout); |
53342f27 TT |
670 | } |
671 | ||
672 | static void | |
673 | show_print_type (char *args, int from_tty) | |
674 | { | |
675 | cmd_show_list (showprinttypelist, from_tty, ""); | |
676 | } | |
677 | ||
678 | static int print_methods = 1; | |
679 | ||
680 | static void | |
681 | set_print_type_methods (char *args, int from_tty, struct cmd_list_element *c) | |
682 | { | |
683 | default_ptype_flags.print_methods = print_methods; | |
684 | } | |
685 | ||
686 | static void | |
687 | show_print_type_methods (struct ui_file *file, int from_tty, | |
688 | struct cmd_list_element *c, const char *value) | |
689 | { | |
690 | fprintf_filtered (file, _("Printing of methods defined in a class in %s\n"), | |
691 | value); | |
692 | } | |
693 | ||
694 | static int print_typedefs = 1; | |
695 | ||
696 | static void | |
697 | set_print_type_typedefs (char *args, int from_tty, struct cmd_list_element *c) | |
698 | { | |
699 | default_ptype_flags.print_typedefs = print_typedefs; | |
700 | } | |
701 | ||
702 | static void | |
703 | show_print_type_typedefs (struct ui_file *file, int from_tty, | |
704 | struct cmd_list_element *c, const char *value) | |
705 | { | |
706 | fprintf_filtered (file, _("Printing of typedefs defined in a class in %s\n"), | |
707 | value); | |
708 | } | |
709 | ||
c906108c | 710 | void |
fba45db2 | 711 | _initialize_typeprint (void) |
c906108c | 712 | { |
4fc5d43e TT |
713 | struct cmd_list_element *c; |
714 | ||
715 | c = add_com ("ptype", class_vars, ptype_command, _("\ | |
1bedd215 | 716 | Print definition of type TYPE.\n\ |
a9375afe DE |
717 | Usage: ptype[/FLAGS] TYPE | EXPRESSION\n\ |
718 | Argument may be any type (for example a type name defined by typedef,\n\ | |
719 | or \"struct STRUCT-TAG\" or \"class CLASS-NAME\" or \"union UNION-TAG\"\n\ | |
720 | or \"enum ENUM-TAG\") or an expression.\n\ | |
11081198 | 721 | The selected stack frame's lexical context is used to look up the name.\n\ |
53342f27 TT |
722 | Contrary to \"whatis\", \"ptype\" always unrolls any typedefs.\n\ |
723 | \n\ | |
724 | Available FLAGS are:\n\ | |
725 | /r print in \"raw\" form; do not substitute typedefs\n\ | |
726 | /m do not print methods defined in a class\n\ | |
727 | /M print methods defined in a class\n\ | |
728 | /t do not print typedefs defined in a class\n\ | |
729 | /T print typedefs defined in a class")); | |
4fc5d43e | 730 | set_cmd_completer (c, expression_completer); |
c906108c | 731 | |
4fc5d43e TT |
732 | c = add_com ("whatis", class_vars, whatis_command, |
733 | _("Print data type of expression EXP.\n\ | |
11081198 | 734 | Only one level of typedefs is unrolled. See also \"ptype\".")); |
4fc5d43e | 735 | set_cmd_completer (c, expression_completer); |
53342f27 TT |
736 | |
737 | add_prefix_cmd ("type", no_class, show_print_type, | |
738 | _("Generic command for showing type-printing settings."), | |
739 | &showprinttypelist, "show print type ", 0, &showprintlist); | |
740 | add_prefix_cmd ("type", no_class, set_print_type, | |
741 | _("Generic command for setting how types print."), | |
742 | &setprinttypelist, "show print type ", 0, &setprintlist); | |
743 | ||
744 | add_setshow_boolean_cmd ("methods", no_class, &print_methods, | |
745 | _("\ | |
746 | Set printing of methods defined in classes."), _("\ | |
747 | Show printing of methods defined in classes."), NULL, | |
748 | set_print_type_methods, | |
749 | show_print_type_methods, | |
750 | &setprinttypelist, &showprinttypelist); | |
751 | add_setshow_boolean_cmd ("typedefs", no_class, &print_typedefs, | |
752 | _("\ | |
753 | Set printing of typedefs defined in classes."), _("\ | |
754 | Show printing of typedefs defined in classes."), NULL, | |
755 | set_print_type_typedefs, | |
756 | show_print_type_typedefs, | |
757 | &setprinttypelist, &showprinttypelist); | |
c906108c | 758 | } |
3f2f83dd KB |
759 | |
760 | /* Print <not allocated> status to stream STREAM. */ | |
761 | ||
762 | void | |
763 | val_print_not_allocated (struct ui_file *stream) | |
764 | { | |
765 | fprintf_filtered (stream, _("<not allocated>")); | |
766 | } | |
767 | ||
768 | /* Print <not associated> status to stream STREAM. */ | |
769 | ||
770 | void | |
771 | val_print_not_associated (struct ui_file *stream) | |
772 | { | |
773 | fprintf_filtered (stream, _("<not associated>")); | |
774 | } |