Commit | Line | Data |
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c906108c | 1 | /* Language independent support for printing types for GDB, the GNU debugger. |
1bac305b | 2 | |
e2882c85 | 3 | Copyright (C) 1986-2018 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 | |
79d43c61 TT |
40 | const struct type_print_options type_print_raw_options = |
41 | { | |
53342f27 TT |
42 | 1, /* raw */ |
43 | 1, /* print_methods */ | |
bd69fc68 | 44 | 1, /* print_typedefs */ |
7c161838 | 45 | 0, /* print_offsets */ |
883fd55a | 46 | 0, /* print_nested_type_limit */ |
18a9fc12 TT |
47 | NULL, /* local_typedefs */ |
48 | NULL, /* global_table */ | |
49 | NULL /* global_printers */ | |
79d43c61 TT |
50 | }; |
51 | ||
52 | /* The default flags for 'ptype' and 'whatis'. */ | |
53 | ||
54 | static struct type_print_options default_ptype_flags = | |
55 | { | |
53342f27 TT |
56 | 0, /* raw */ |
57 | 1, /* print_methods */ | |
bd69fc68 | 58 | 1, /* print_typedefs */ |
7c161838 | 59 | 0, /* print_offsets */ |
883fd55a | 60 | 0, /* print_nested_type_limit */ |
18a9fc12 TT |
61 | NULL, /* local_typedefs */ |
62 | NULL, /* global_table */ | |
63 | NULL /* global_printers */ | |
79d43c61 | 64 | }; |
5c6ce71d | 65 | |
53342f27 TT |
66 | \f |
67 | ||
bd69fc68 TT |
68 | /* A hash function for a typedef_field. */ |
69 | ||
70 | static hashval_t | |
71 | hash_typedef_field (const void *p) | |
72 | { | |
883fd55a | 73 | const struct decl_field *tf = (const struct decl_field *) p; |
bd69fc68 TT |
74 | struct type *t = check_typedef (tf->type); |
75 | ||
76 | return htab_hash_string (TYPE_SAFE_NAME (t)); | |
77 | } | |
78 | ||
79 | /* An equality function for a typedef field. */ | |
80 | ||
81 | static int | |
82 | eq_typedef_field (const void *a, const void *b) | |
83 | { | |
883fd55a KS |
84 | const struct decl_field *tfa = (const struct decl_field *) a; |
85 | const struct decl_field *tfb = (const struct decl_field *) b; | |
bd69fc68 TT |
86 | |
87 | return types_equal (tfa->type, tfb->type); | |
88 | } | |
89 | ||
c819b2c0 | 90 | /* See typeprint.h. */ |
bd69fc68 TT |
91 | |
92 | void | |
c819b2c0 | 93 | typedef_hash_table::recursively_update (struct type *t) |
bd69fc68 TT |
94 | { |
95 | int i; | |
96 | ||
bd69fc68 TT |
97 | for (i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (t); ++i) |
98 | { | |
883fd55a | 99 | struct decl_field *tdef = &TYPE_TYPEDEF_FIELD (t, i); |
bd69fc68 TT |
100 | void **slot; |
101 | ||
c819b2c0 | 102 | slot = htab_find_slot (m_table, tdef, INSERT); |
bd69fc68 TT |
103 | /* Only add a given typedef name once. Really this shouldn't |
104 | happen; but it is safe enough to do the updates breadth-first | |
105 | and thus use the most specific typedef. */ | |
106 | if (*slot == NULL) | |
107 | *slot = tdef; | |
108 | } | |
109 | ||
110 | /* Recurse into superclasses. */ | |
111 | for (i = 0; i < TYPE_N_BASECLASSES (t); ++i) | |
c819b2c0 | 112 | recursively_update (TYPE_BASECLASS (t, i)); |
bd69fc68 TT |
113 | } |
114 | ||
c819b2c0 | 115 | /* See typeprint.h. */ |
bd69fc68 TT |
116 | |
117 | void | |
c819b2c0 | 118 | typedef_hash_table::add_template_parameters (struct type *t) |
bd69fc68 TT |
119 | { |
120 | int i; | |
121 | ||
bd69fc68 TT |
122 | for (i = 0; i < TYPE_N_TEMPLATE_ARGUMENTS (t); ++i) |
123 | { | |
883fd55a | 124 | struct decl_field *tf; |
bd69fc68 TT |
125 | void **slot; |
126 | ||
127 | /* We only want type-valued template parameters in the hash. */ | |
128 | if (SYMBOL_CLASS (TYPE_TEMPLATE_ARGUMENT (t, i)) != LOC_TYPEDEF) | |
129 | continue; | |
130 | ||
c819b2c0 | 131 | tf = XOBNEW (&m_storage, struct decl_field); |
bd69fc68 TT |
132 | tf->name = SYMBOL_LINKAGE_NAME (TYPE_TEMPLATE_ARGUMENT (t, i)); |
133 | tf->type = SYMBOL_TYPE (TYPE_TEMPLATE_ARGUMENT (t, i)); | |
134 | ||
c819b2c0 | 135 | slot = htab_find_slot (m_table, tf, INSERT); |
bd69fc68 TT |
136 | if (*slot == NULL) |
137 | *slot = tf; | |
138 | } | |
139 | } | |
140 | ||
c819b2c0 | 141 | /* See typeprint.h. */ |
bd69fc68 | 142 | |
c819b2c0 | 143 | typedef_hash_table::typedef_hash_table () |
bd69fc68 | 144 | { |
c819b2c0 TT |
145 | m_table = htab_create_alloc (10, hash_typedef_field, eq_typedef_field, |
146 | NULL, xcalloc, xfree); | |
bd69fc68 TT |
147 | } |
148 | ||
149 | /* Free a typedef field table. */ | |
150 | ||
c819b2c0 | 151 | typedef_hash_table::~typedef_hash_table () |
bd69fc68 | 152 | { |
c819b2c0 | 153 | htab_delete (m_table); |
bd69fc68 TT |
154 | } |
155 | ||
c819b2c0 | 156 | /* Helper function for typedef_hash_table::copy. */ |
bd69fc68 TT |
157 | |
158 | static int | |
159 | copy_typedef_hash_element (void **slot, void *nt) | |
160 | { | |
19ba03f4 | 161 | htab_t new_table = (htab_t) nt; |
bd69fc68 TT |
162 | void **new_slot; |
163 | ||
164 | new_slot = htab_find_slot (new_table, *slot, INSERT); | |
165 | if (*new_slot == NULL) | |
166 | *new_slot = *slot; | |
167 | ||
168 | return 1; | |
169 | } | |
170 | ||
c819b2c0 | 171 | /* See typeprint.h. */ |
18a9fc12 | 172 | |
c819b2c0 | 173 | typedef_hash_table::typedef_hash_table (const typedef_hash_table &table) |
18a9fc12 | 174 | { |
c819b2c0 TT |
175 | m_table = htab_create_alloc (10, hash_typedef_field, eq_typedef_field, |
176 | NULL, xcalloc, xfree); | |
177 | htab_traverse_noresize (table.m_table, copy_typedef_hash_element, | |
178 | m_table); | |
18a9fc12 TT |
179 | } |
180 | ||
181 | /* Look up the type T in the global typedef hash. If it is found, | |
182 | return the typedef name. If it is not found, apply the | |
6dddc817 | 183 | type-printers, if any, given by start_script_type_printers and return the |
18a9fc12 TT |
184 | result. A NULL return means that the name was not found. */ |
185 | ||
c819b2c0 TT |
186 | const char * |
187 | typedef_hash_table::find_global_typedef (const struct type_print_options *flags, | |
188 | struct type *t) | |
18a9fc12 TT |
189 | { |
190 | char *applied; | |
191 | void **slot; | |
883fd55a | 192 | struct decl_field tf, *new_tf; |
18a9fc12 TT |
193 | |
194 | if (flags->global_typedefs == NULL) | |
195 | return NULL; | |
196 | ||
197 | tf.name = NULL; | |
198 | tf.type = t; | |
199 | ||
c819b2c0 | 200 | slot = htab_find_slot (flags->global_typedefs->m_table, &tf, INSERT); |
18a9fc12 TT |
201 | if (*slot != NULL) |
202 | { | |
883fd55a | 203 | new_tf = (struct decl_field *) *slot; |
18a9fc12 TT |
204 | return new_tf->name; |
205 | } | |
206 | ||
9b94fcf1 DE |
207 | /* Put an entry into the hash table now, in case |
208 | apply_ext_lang_type_printers recurses. */ | |
c819b2c0 | 209 | new_tf = XOBNEW (&flags->global_typedefs->m_storage, struct decl_field); |
18a9fc12 TT |
210 | new_tf->name = NULL; |
211 | new_tf->type = t; | |
212 | ||
213 | *slot = new_tf; | |
214 | ||
6dddc817 | 215 | applied = apply_ext_lang_type_printers (flags->global_printers, t); |
18a9fc12 TT |
216 | |
217 | if (applied != NULL) | |
218 | { | |
224c3ddb | 219 | new_tf->name |
c819b2c0 | 220 | = (const char *) obstack_copy0 (&flags->global_typedefs->m_storage, |
224c3ddb | 221 | applied, strlen (applied)); |
18a9fc12 TT |
222 | xfree (applied); |
223 | } | |
224 | ||
225 | return new_tf->name; | |
226 | } | |
227 | ||
c819b2c0 | 228 | /* See typeprint.h. */ |
bd69fc68 TT |
229 | |
230 | const char * | |
c819b2c0 TT |
231 | typedef_hash_table::find_typedef (const struct type_print_options *flags, |
232 | struct type *t) | |
bd69fc68 | 233 | { |
18a9fc12 TT |
234 | if (flags->local_typedefs != NULL) |
235 | { | |
883fd55a | 236 | struct decl_field tf, *found; |
bd69fc68 | 237 | |
18a9fc12 TT |
238 | tf.name = NULL; |
239 | tf.type = t; | |
c819b2c0 | 240 | found = (struct decl_field *) htab_find (flags->local_typedefs->m_table, |
883fd55a | 241 | &tf); |
bd69fc68 | 242 | |
18a9fc12 TT |
243 | if (found != NULL) |
244 | return found->name; | |
245 | } | |
bd69fc68 | 246 | |
18a9fc12 | 247 | return find_global_typedef (flags, t); |
bd69fc68 TT |
248 | } |
249 | ||
250 | \f | |
251 | ||
a5238fbc PM |
252 | /* Print a description of a type in the format of a |
253 | typedef for the current language. | |
c378eb4e | 254 | NEW is the new name for a type TYPE. */ |
a5238fbc PM |
255 | |
256 | void | |
fe978cb0 | 257 | typedef_print (struct type *type, struct symbol *newobj, struct ui_file *stream) |
a5238fbc | 258 | { |
fe978cb0 | 259 | LA_PRINT_TYPEDEF (type, newobj, stream); |
5c6ce71d TT |
260 | } |
261 | ||
262 | /* The default way to print a typedef. */ | |
263 | ||
264 | void | |
265 | default_print_typedef (struct type *type, struct symbol *new_symbol, | |
266 | struct ui_file *stream) | |
267 | { | |
268 | error (_("Language not supported.")); | |
a5238fbc PM |
269 | } |
270 | ||
c906108c SS |
271 | /* Print a description of a type TYPE in the form of a declaration of a |
272 | variable named VARSTRING. (VARSTRING is demangled if necessary.) | |
273 | Output goes to STREAM (via stdio). | |
274 | If SHOW is positive, we show the contents of the outermost level | |
275 | of structure even if there is a type name that could be used instead. | |
276 | If SHOW is negative, we never show the details of elements' types. */ | |
277 | ||
278 | void | |
0d5cff50 | 279 | type_print (struct type *type, const char *varstring, struct ui_file *stream, |
fba45db2 | 280 | int show) |
c906108c | 281 | { |
79d43c61 | 282 | LA_PRINT_TYPE (type, varstring, stream, show, 0, &default_ptype_flags); |
c906108c SS |
283 | } |
284 | ||
ae6a3a4c TJB |
285 | /* Print TYPE to a string, returning it. The caller is responsible for |
286 | freeing the string. */ | |
287 | ||
2f408ecb | 288 | std::string |
ae6a3a4c TJB |
289 | type_to_string (struct type *type) |
290 | { | |
492d29ea | 291 | TRY |
ae6a3a4c | 292 | { |
d7e74731 PA |
293 | string_file stb; |
294 | ||
295 | type_print (type, "", &stb, -1); | |
296 | return std::move (stb.string ()); | |
ae6a3a4c | 297 | } |
492d29ea PA |
298 | CATCH (except, RETURN_MASK_ALL) |
299 | { | |
492d29ea PA |
300 | } |
301 | END_CATCH | |
ae6a3a4c | 302 | |
d7e74731 | 303 | return {}; |
ae6a3a4c TJB |
304 | } |
305 | ||
7022349d PA |
306 | /* See typeprint.h. */ |
307 | ||
308 | void | |
309 | type_print_unknown_return_type (struct ui_file *stream) | |
310 | { | |
311 | fprintf_filtered (stream, _("<unknown return type>")); | |
312 | } | |
313 | ||
46a4882b PA |
314 | /* See typeprint.h. */ |
315 | ||
316 | void | |
317 | error_unknown_type (const char *sym_print_name) | |
318 | { | |
319 | error (_("'%s' has unknown type; cast it to its declared type"), | |
320 | sym_print_name); | |
321 | } | |
322 | ||
c906108c SS |
323 | /* Print type of EXP, or last thing in value history if EXP == NULL. |
324 | show is passed to type_print. */ | |
325 | ||
326 | static void | |
0b39b52e | 327 | whatis_exp (const char *exp, int show) |
c906108c | 328 | { |
3d6d86c6 | 329 | struct value *val; |
c5aa993b | 330 | struct type *real_type = NULL; |
070ad9f0 | 331 | struct type *type; |
c906108c | 332 | int full = 0; |
6b850546 | 333 | LONGEST top = -1; |
c906108c | 334 | int using_enc = 0; |
79a45b7d | 335 | struct value_print_options opts; |
53342f27 | 336 | struct type_print_options flags = default_ptype_flags; |
c906108c SS |
337 | |
338 | if (exp) | |
339 | { | |
53342f27 TT |
340 | if (*exp == '/') |
341 | { | |
342 | int seen_one = 0; | |
343 | ||
344 | for (++exp; *exp && !isspace (*exp); ++exp) | |
345 | { | |
346 | switch (*exp) | |
347 | { | |
348 | case 'r': | |
349 | flags.raw = 1; | |
350 | break; | |
351 | case 'm': | |
352 | flags.print_methods = 0; | |
353 | break; | |
354 | case 'M': | |
355 | flags.print_methods = 1; | |
356 | break; | |
357 | case 't': | |
358 | flags.print_typedefs = 0; | |
359 | break; | |
360 | case 'T': | |
361 | flags.print_typedefs = 1; | |
362 | break; | |
7c161838 SDJ |
363 | case 'o': |
364 | { | |
365 | /* Filter out languages which don't implement the | |
366 | feature. */ | |
46afe196 SDJ |
367 | if (show > 0 |
368 | && (current_language->la_language == language_c | |
369 | || current_language->la_language == language_cplus)) | |
7c161838 SDJ |
370 | { |
371 | flags.print_offsets = 1; | |
372 | flags.print_typedefs = 0; | |
373 | flags.print_methods = 0; | |
374 | } | |
375 | break; | |
376 | } | |
53342f27 TT |
377 | default: |
378 | error (_("unrecognized flag '%c'"), *exp); | |
379 | } | |
380 | seen_one = 1; | |
381 | } | |
382 | ||
383 | if (!*exp && !seen_one) | |
384 | error (_("flag expected")); | |
385 | if (!isspace (*exp)) | |
386 | error (_("expected space after format")); | |
387 | exp = skip_spaces (exp); | |
388 | } | |
389 | ||
4d01a485 | 390 | expression_up expr = parse_expression (exp); |
c973d0aa PA |
391 | |
392 | /* The behavior of "whatis" depends on whether the user | |
393 | expression names a type directly, or a language expression | |
394 | (including variable names). If the former, then "whatis" | |
395 | strips one level of typedefs, only. If an expression, | |
396 | "whatis" prints the type of the expression without stripping | |
397 | any typedef level. "ptype" always strips all levels of | |
398 | typedefs. */ | |
399 | if (show == -1 && expr->elts[0].opcode == OP_TYPE) | |
400 | { | |
401 | /* The user expression names a type directly. */ | |
402 | type = expr->elts[1].type; | |
403 | ||
404 | /* If this is a typedef, then find its immediate target. | |
405 | Use check_typedef to resolve stubs, but ignore its result | |
406 | because we do not want to dig past all typedefs. */ | |
407 | check_typedef (type); | |
408 | if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) | |
409 | type = TYPE_TARGET_TYPE (type); | |
5c319bb2 PA |
410 | |
411 | /* If the expression is actually a type, then there's no | |
412 | value to fetch the dynamic type from. */ | |
413 | val = NULL; | |
c973d0aa PA |
414 | } |
415 | else | |
416 | { | |
417 | /* The user expression names a type indirectly by naming an | |
418 | object or expression of that type. Find that | |
419 | indirectly-named type. */ | |
420 | val = evaluate_type (expr.get ()); | |
421 | type = value_type (val); | |
422 | } | |
c906108c SS |
423 | } |
424 | else | |
c973d0aa PA |
425 | { |
426 | val = access_value_history (0); | |
427 | type = value_type (val); | |
428 | } | |
070ad9f0 | 429 | |
79a45b7d | 430 | get_user_print_options (&opts); |
5c319bb2 | 431 | if (val != NULL && opts.objectprint) |
070ad9f0 | 432 | { |
aa006118 | 433 | if (((TYPE_CODE (type) == TYPE_CODE_PTR) || TYPE_IS_REFERENCE (type)) |
4753d33b | 434 | && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_STRUCT)) |
dfcee124 | 435 | real_type = value_rtti_indirect_type (val, &full, &top, &using_enc); |
4753d33b | 436 | else if (TYPE_CODE (type) == TYPE_CODE_STRUCT) |
41808ebe | 437 | real_type = value_rtti_type (val, &full, &top, &using_enc); |
070ad9f0 | 438 | } |
c906108c | 439 | |
7c161838 SDJ |
440 | if (flags.print_offsets |
441 | && (TYPE_CODE (type) == TYPE_CODE_STRUCT | |
442 | || TYPE_CODE (type) == TYPE_CODE_UNION)) | |
443 | fprintf_filtered (gdb_stdout, "/* offset | size */ "); | |
444 | ||
c906108c SS |
445 | printf_filtered ("type = "); |
446 | ||
c819b2c0 TT |
447 | std::unique_ptr<typedef_hash_table> table_holder; |
448 | std::unique_ptr<ext_lang_type_printers> printer_holder; | |
18a9fc12 | 449 | if (!flags.raw) |
c819b2c0 TT |
450 | { |
451 | table_holder.reset (new typedef_hash_table); | |
452 | flags.global_typedefs = table_holder.get (); | |
453 | ||
454 | printer_holder.reset (new ext_lang_type_printers); | |
455 | flags.global_printers = printer_holder.get (); | |
456 | } | |
18a9fc12 | 457 | |
070ad9f0 DB |
458 | if (real_type) |
459 | { | |
460 | printf_filtered ("/* real type = "); | |
461 | type_print (real_type, "", gdb_stdout, -1); | |
462 | if (! full) | |
463 | printf_filtered (" (incomplete object)"); | |
464 | printf_filtered (" */\n"); | |
465 | } | |
c906108c | 466 | |
53342f27 | 467 | LA_PRINT_TYPE (type, "", gdb_stdout, show, 0, &flags); |
c906108c | 468 | printf_filtered ("\n"); |
c906108c SS |
469 | } |
470 | ||
c906108c | 471 | static void |
0b39b52e | 472 | whatis_command (const char *exp, int from_tty) |
c906108c SS |
473 | { |
474 | /* Most of the time users do not want to see all the fields | |
475 | in a structure. If they do they can use the "ptype" command. | |
476 | Hence the "-1" below. */ | |
477 | whatis_exp (exp, -1); | |
478 | } | |
479 | ||
c906108c SS |
480 | /* TYPENAME is either the name of a type, or an expression. */ |
481 | ||
c906108c | 482 | static void |
0b39b52e | 483 | ptype_command (const char *type_name, int from_tty) |
c906108c | 484 | { |
fe978cb0 | 485 | whatis_exp (type_name, 1); |
c906108c SS |
486 | } |
487 | ||
488 | /* Print integral scalar data VAL, of type TYPE, onto stdio stream STREAM. | |
489 | Used to print data from type structures in a specified type. For example, | |
490 | array bounds may be characters or booleans in some languages, and this | |
491 | allows the ranges to be printed in their "natural" form rather than as | |
492 | decimal integer values. | |
493 | ||
494 | FIXME: This is here simply because only the type printing routines | |
495 | currently use it, and it wasn't clear if it really belonged somewhere | |
496 | else (like printcmd.c). There are a lot of other gdb routines that do | |
497 | something similar, but they are generally concerned with printing values | |
41808ebe | 498 | that come from the inferior in target byte order and target size. */ |
c906108c SS |
499 | |
500 | void | |
fba45db2 | 501 | print_type_scalar (struct type *type, LONGEST val, struct ui_file *stream) |
c906108c SS |
502 | { |
503 | unsigned int i; | |
504 | unsigned len; | |
505 | ||
f168693b | 506 | type = check_typedef (type); |
c906108c SS |
507 | |
508 | switch (TYPE_CODE (type)) | |
509 | { | |
510 | ||
511 | case TYPE_CODE_ENUM: | |
512 | len = TYPE_NFIELDS (type); | |
513 | for (i = 0; i < len; i++) | |
514 | { | |
14e75d8e | 515 | if (TYPE_FIELD_ENUMVAL (type, i) == val) |
c906108c SS |
516 | { |
517 | break; | |
518 | } | |
519 | } | |
520 | if (i < len) | |
521 | { | |
522 | fputs_filtered (TYPE_FIELD_NAME (type, i), stream); | |
523 | } | |
524 | else | |
525 | { | |
526 | print_longest (stream, 'd', 0, val); | |
527 | } | |
528 | break; | |
529 | ||
530 | case TYPE_CODE_INT: | |
531 | print_longest (stream, TYPE_UNSIGNED (type) ? 'u' : 'd', 0, val); | |
532 | break; | |
533 | ||
534 | case TYPE_CODE_CHAR: | |
6c7a06a3 | 535 | LA_PRINT_CHAR ((unsigned char) val, type, stream); |
c906108c SS |
536 | break; |
537 | ||
538 | case TYPE_CODE_BOOL: | |
539 | fprintf_filtered (stream, val ? "TRUE" : "FALSE"); | |
540 | break; | |
541 | ||
542 | case TYPE_CODE_RANGE: | |
543 | print_type_scalar (TYPE_TARGET_TYPE (type), val, stream); | |
544 | return; | |
545 | ||
546 | case TYPE_CODE_UNDEF: | |
547 | case TYPE_CODE_PTR: | |
548 | case TYPE_CODE_ARRAY: | |
549 | case TYPE_CODE_STRUCT: | |
550 | case TYPE_CODE_UNION: | |
551 | case TYPE_CODE_FUNC: | |
552 | case TYPE_CODE_FLT: | |
553 | case TYPE_CODE_VOID: | |
554 | case TYPE_CODE_SET: | |
555 | case TYPE_CODE_STRING: | |
556 | case TYPE_CODE_ERROR: | |
0d5de010 DJ |
557 | case TYPE_CODE_MEMBERPTR: |
558 | case TYPE_CODE_METHODPTR: | |
c906108c SS |
559 | case TYPE_CODE_METHOD: |
560 | case TYPE_CODE_REF: | |
aa006118 | 561 | case TYPE_CODE_RVALUE_REF: |
5c4e30ca | 562 | case TYPE_CODE_NAMESPACE: |
8a3fe4f8 | 563 | error (_("internal error: unhandled type in print_type_scalar")); |
c906108c SS |
564 | break; |
565 | ||
566 | default: | |
8a3fe4f8 | 567 | error (_("Invalid type code in symbol table.")); |
c906108c SS |
568 | } |
569 | gdb_flush (stream); | |
570 | } | |
571 | ||
c906108c SS |
572 | /* Dump details of a type specified either directly or indirectly. |
573 | Uses the same sort of type lookup mechanism as ptype_command() | |
41808ebe | 574 | and whatis_command(). */ |
c906108c SS |
575 | |
576 | void | |
58971144 | 577 | maintenance_print_type (const char *type_name, int from_tty) |
c906108c | 578 | { |
3d6d86c6 | 579 | struct value *val; |
52f0bd74 | 580 | struct type *type; |
c906108c | 581 | |
fe978cb0 | 582 | if (type_name != NULL) |
c5aa993b | 583 | { |
4d01a485 | 584 | expression_up expr = parse_expression (type_name); |
c5aa993b JM |
585 | if (expr->elts[0].opcode == OP_TYPE) |
586 | { | |
c378eb4e | 587 | /* The user expression names a type directly, just use that type. */ |
c5aa993b JM |
588 | type = expr->elts[1].type; |
589 | } | |
590 | else | |
591 | { | |
592 | /* The user expression may name a type indirectly by naming an | |
c378eb4e | 593 | object of that type. Find that indirectly named type. */ |
4d01a485 | 594 | val = evaluate_type (expr.get ()); |
df407dfe | 595 | type = value_type (val); |
c5aa993b JM |
596 | } |
597 | if (type != NULL) | |
598 | { | |
599 | recursive_dump_type (type, 0); | |
600 | } | |
c5aa993b | 601 | } |
c906108c | 602 | } |
c906108c | 603 | \f |
c5aa993b | 604 | |
53342f27 TT |
605 | struct cmd_list_element *setprinttypelist; |
606 | ||
607 | struct cmd_list_element *showprinttypelist; | |
608 | ||
609 | static void | |
981a3fb3 | 610 | set_print_type (const char *arg, int from_tty) |
53342f27 TT |
611 | { |
612 | printf_unfiltered ( | |
613 | "\"set print type\" must be followed by the name of a subcommand.\n"); | |
635c7e8a | 614 | help_list (setprintlist, "set print type ", all_commands, gdb_stdout); |
53342f27 TT |
615 | } |
616 | ||
617 | static void | |
981a3fb3 | 618 | show_print_type (const char *args, int from_tty) |
53342f27 TT |
619 | { |
620 | cmd_show_list (showprinttypelist, from_tty, ""); | |
621 | } | |
622 | ||
623 | static int print_methods = 1; | |
624 | ||
625 | static void | |
eb4c3f4a TT |
626 | set_print_type_methods (const char *args, |
627 | int from_tty, struct cmd_list_element *c) | |
53342f27 TT |
628 | { |
629 | default_ptype_flags.print_methods = print_methods; | |
630 | } | |
631 | ||
632 | static void | |
633 | show_print_type_methods (struct ui_file *file, int from_tty, | |
634 | struct cmd_list_element *c, const char *value) | |
635 | { | |
636 | fprintf_filtered (file, _("Printing of methods defined in a class in %s\n"), | |
637 | value); | |
638 | } | |
639 | ||
640 | static int print_typedefs = 1; | |
641 | ||
642 | static void | |
eb4c3f4a TT |
643 | set_print_type_typedefs (const char *args, |
644 | int from_tty, struct cmd_list_element *c) | |
53342f27 TT |
645 | { |
646 | default_ptype_flags.print_typedefs = print_typedefs; | |
647 | } | |
648 | ||
649 | static void | |
650 | show_print_type_typedefs (struct ui_file *file, int from_tty, | |
651 | struct cmd_list_element *c, const char *value) | |
652 | { | |
653 | fprintf_filtered (file, _("Printing of typedefs defined in a class in %s\n"), | |
654 | value); | |
655 | } | |
656 | ||
883fd55a KS |
657 | /* Limit on the number of nested type definitions to print or -1 to print |
658 | all nested type definitions in a class. By default, we do not print | |
659 | nested definitions. */ | |
660 | ||
661 | static int print_nested_type_limit = 0; | |
662 | ||
663 | /* Set how many nested type definitions should be printed by the type | |
664 | printer. */ | |
665 | ||
666 | static void | |
667 | set_print_type_nested_types (const char *args, int from_tty, | |
668 | struct cmd_list_element *c) | |
669 | { | |
670 | default_ptype_flags.print_nested_type_limit = print_nested_type_limit; | |
671 | } | |
672 | ||
673 | /* Show how many nested type definitions the type printer will print. */ | |
674 | ||
675 | static void | |
676 | show_print_type_nested_types (struct ui_file *file, int from_tty, | |
677 | struct cmd_list_element *c, const char *value) | |
678 | { | |
679 | if (*value == '0') | |
680 | { | |
681 | fprintf_filtered (file, | |
682 | _("Will not print nested types defined in a class\n")); | |
683 | } | |
684 | else | |
685 | { | |
686 | fprintf_filtered (file, | |
687 | _("Will print %s nested types defined in a class\n"), | |
688 | value); | |
689 | } | |
690 | } | |
691 | ||
c906108c | 692 | void |
fba45db2 | 693 | _initialize_typeprint (void) |
c906108c | 694 | { |
4fc5d43e TT |
695 | struct cmd_list_element *c; |
696 | ||
697 | c = add_com ("ptype", class_vars, ptype_command, _("\ | |
1bedd215 | 698 | Print definition of type TYPE.\n\ |
a9375afe DE |
699 | Usage: ptype[/FLAGS] TYPE | EXPRESSION\n\ |
700 | Argument may be any type (for example a type name defined by typedef,\n\ | |
701 | or \"struct STRUCT-TAG\" or \"class CLASS-NAME\" or \"union UNION-TAG\"\n\ | |
702 | or \"enum ENUM-TAG\") or an expression.\n\ | |
11081198 | 703 | The selected stack frame's lexical context is used to look up the name.\n\ |
53342f27 TT |
704 | Contrary to \"whatis\", \"ptype\" always unrolls any typedefs.\n\ |
705 | \n\ | |
706 | Available FLAGS are:\n\ | |
707 | /r print in \"raw\" form; do not substitute typedefs\n\ | |
708 | /m do not print methods defined in a class\n\ | |
709 | /M print methods defined in a class\n\ | |
710 | /t do not print typedefs defined in a class\n\ | |
7c161838 SDJ |
711 | /T print typedefs defined in a class\n\ |
712 | /o print offsets and sizes of fields in a struct (like pahole)\n")); | |
4fc5d43e | 713 | set_cmd_completer (c, expression_completer); |
c906108c | 714 | |
4fc5d43e TT |
715 | c = add_com ("whatis", class_vars, whatis_command, |
716 | _("Print data type of expression EXP.\n\ | |
11081198 | 717 | Only one level of typedefs is unrolled. See also \"ptype\".")); |
4fc5d43e | 718 | set_cmd_completer (c, expression_completer); |
53342f27 TT |
719 | |
720 | add_prefix_cmd ("type", no_class, show_print_type, | |
721 | _("Generic command for showing type-printing settings."), | |
722 | &showprinttypelist, "show print type ", 0, &showprintlist); | |
723 | add_prefix_cmd ("type", no_class, set_print_type, | |
724 | _("Generic command for setting how types print."), | |
725 | &setprinttypelist, "show print type ", 0, &setprintlist); | |
726 | ||
727 | add_setshow_boolean_cmd ("methods", no_class, &print_methods, | |
728 | _("\ | |
729 | Set printing of methods defined in classes."), _("\ | |
730 | Show printing of methods defined in classes."), NULL, | |
731 | set_print_type_methods, | |
732 | show_print_type_methods, | |
733 | &setprinttypelist, &showprinttypelist); | |
734 | add_setshow_boolean_cmd ("typedefs", no_class, &print_typedefs, | |
735 | _("\ | |
736 | Set printing of typedefs defined in classes."), _("\ | |
737 | Show printing of typedefs defined in classes."), NULL, | |
738 | set_print_type_typedefs, | |
739 | show_print_type_typedefs, | |
740 | &setprinttypelist, &showprinttypelist); | |
883fd55a KS |
741 | |
742 | add_setshow_zuinteger_unlimited_cmd ("nested-type-limit", no_class, | |
743 | &print_nested_type_limit, | |
744 | _("\ | |
745 | Set the number of recursive nested type definitions to print \ | |
746 | (\"unlimited\" or -1 to show all)."), _("\ | |
747 | Show the number of recursive nested type definitions to print."), NULL, | |
748 | set_print_type_nested_types, | |
749 | show_print_type_nested_types, | |
750 | &setprinttypelist, &showprinttypelist); | |
c906108c | 751 | } |
3f2f83dd KB |
752 | |
753 | /* Print <not allocated> status to stream STREAM. */ | |
754 | ||
755 | void | |
756 | val_print_not_allocated (struct ui_file *stream) | |
757 | { | |
758 | fprintf_filtered (stream, _("<not allocated>")); | |
759 | } | |
760 | ||
761 | /* Print <not associated> status to stream STREAM. */ | |
762 | ||
763 | void | |
764 | val_print_not_associated (struct ui_file *stream) | |
765 | { | |
766 | fprintf_filtered (stream, _("<not associated>")); | |
767 | } |