Move 2006 ChangeLog entries to ChangeLog-2006.
[deliverable/binutils-gdb.git] / gdb / c-typeprint.c
CommitLineData
c906108c 1/* Support for printing C and C++ types for GDB, the GNU debugger.
197e01b6 2 Copyright (C) 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1998,
0d5de010 3 1999, 2000, 2001, 2002, 2003, 2006
c906108c
SS
4 Free Software Foundation, Inc.
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
10 the Free Software Foundation; either version 2 of the License, or
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
JM
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
197e01b6
EZ
20 Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 Boston, MA 02110-1301, USA. */
c906108c
SS
22
23#include "defs.h"
04ea0df1 24#include "gdb_obstack.h"
c906108c
SS
25#include "bfd.h" /* Binary File Description */
26#include "symtab.h"
27#include "gdbtypes.h"
28#include "expression.h"
29#include "value.h"
30#include "gdbcore.h"
31#include "target.h"
c906108c
SS
32#include "language.h"
33#include "demangle.h"
34#include "c-lang.h"
35#include "typeprint.h"
015a42b4 36#include "cp-abi.h"
c906108c
SS
37
38#include "gdb_string.h"
39#include <errno.h>
c906108c 40
ad2f7632 41static void cp_type_print_method_args (struct type *mtype, char *prefix,
d9fcf2fb
JM
42 char *varstring, int staticp,
43 struct ui_file *stream);
392a587b 44
d9fcf2fb 45static void c_type_print_args (struct type *, struct ui_file *);
c906108c 46
d9fcf2fb 47static void cp_type_print_derivation_info (struct ui_file *, struct type *);
c906108c 48
9750e763
KB
49static void c_type_print_varspec_prefix (struct type *, struct ui_file *, int,
50 int, int);
c906108c 51
47663de5
MS
52/* Print "const", "volatile", or address space modifiers. */
53static void c_type_print_modifier (struct type *, struct ui_file *,
54 int, int);
c5aa993b 55\f
c906108c
SS
56
57
c906108c
SS
58
59/* LEVEL is the depth to indent lines by. */
60
61void
fba45db2
KB
62c_print_type (struct type *type, char *varstring, struct ui_file *stream,
63 int show, int level)
c906108c 64{
52f0bd74 65 enum type_code code;
c906108c 66 int demangled_args;
9750e763 67 int need_post_space;
c906108c
SS
68
69 if (show > 0)
70 CHECK_TYPEDEF (type);
71
72 c_type_print_base (type, stream, show, level);
73 code = TYPE_CODE (type);
74 if ((varstring != NULL && *varstring != '\0')
75 ||
c5aa993b
JM
76 /* Need a space if going to print stars or brackets;
77 but not if we will print just a type name. */
c906108c
SS
78 ((show > 0 || TYPE_NAME (type) == 0)
79 &&
80 (code == TYPE_CODE_PTR || code == TYPE_CODE_FUNC
81 || code == TYPE_CODE_METHOD
82 || code == TYPE_CODE_ARRAY
0d5de010
DJ
83 || code == TYPE_CODE_MEMBERPTR
84 || code == TYPE_CODE_METHODPTR
c906108c
SS
85 || code == TYPE_CODE_REF)))
86 fputs_filtered (" ", stream);
9750e763
KB
87 need_post_space = (varstring != NULL && strcmp (varstring, "") != 0);
88 c_type_print_varspec_prefix (type, stream, show, 0, need_post_space);
c906108c
SS
89
90 if (varstring != NULL)
91 {
92 fputs_filtered (varstring, stream);
93
94 /* For demangled function names, we have the arglist as part of the name,
c5aa993b 95 so don't print an additional pair of ()'s */
c906108c 96
c5aa993b 97 demangled_args = strchr (varstring, '(') != NULL;
c906108c
SS
98 c_type_print_varspec_suffix (type, stream, show, 0, demangled_args);
99 }
100}
c5aa993b 101
c906108c
SS
102/* If TYPE is a derived type, then print out derivation information.
103 Print only the actual base classes of this type, not the base classes
104 of the base classes. I.E. for the derivation hierarchy:
105
c5aa993b
JM
106 class A { int a; };
107 class B : public A {int b; };
108 class C : public B {int c; };
c906108c
SS
109
110 Print the type of class C as:
111
c5aa993b
JM
112 class C : public B {
113 int c;
114 }
c906108c
SS
115
116 Not as the following (like gdb used to), which is not legal C++ syntax for
117 derived types and may be confused with the multiple inheritance form:
118
c5aa993b
JM
119 class C : public B : public A {
120 int c;
121 }
c906108c
SS
122
123 In general, gdb should try to print the types as closely as possible to
124 the form that they appear in the source code.
125 Note that in case of protected derivation gcc will not say 'protected'
126 but 'private'. The HP's aCC compiler emits specific information for
127 derivation via protected inheritance, so gdb can print it out */
128
129static void
fba45db2 130cp_type_print_derivation_info (struct ui_file *stream, struct type *type)
c906108c
SS
131{
132 char *name;
133 int i;
134
135 for (i = 0; i < TYPE_N_BASECLASSES (type); i++)
136 {
137 fputs_filtered (i == 0 ? ": " : ", ", stream);
138 fprintf_filtered (stream, "%s%s ",
c5aa993b
JM
139 BASETYPE_VIA_PUBLIC (type, i) ? "public"
140 : (TYPE_FIELD_PROTECTED (type, i) ? "protected" : "private"),
141 BASETYPE_VIA_VIRTUAL (type, i) ? " virtual" : "");
c906108c
SS
142 name = type_name_no_tag (TYPE_BASECLASS (type, i));
143 fprintf_filtered (stream, "%s", name ? name : "(null)");
144 }
145 if (i > 0)
146 {
147 fputs_filtered (" ", stream);
148 }
149}
ad2f7632 150
c906108c 151/* Print the C++ method arguments ARGS to the file STREAM. */
c5aa993b 152
392a587b 153static void
ad2f7632 154cp_type_print_method_args (struct type *mtype, char *prefix, char *varstring,
fba45db2 155 int staticp, struct ui_file *stream)
c906108c 156{
ad2f7632
DJ
157 struct field *args = TYPE_FIELDS (mtype);
158 int nargs = TYPE_NFIELDS (mtype);
159 int varargs = TYPE_VARARGS (mtype);
c906108c 160 int i;
c5aa993b 161
c906108c
SS
162 fprintf_symbol_filtered (stream, prefix, language_cplus, DMGL_ANSI);
163 fprintf_symbol_filtered (stream, varstring, language_cplus, DMGL_ANSI);
164 fputs_filtered ("(", stream);
ad2f7632
DJ
165
166 /* Skip the class variable. */
167 i = staticp ? 0 : 1;
168 if (nargs > i)
c906108c 169 {
ad2f7632 170 while (i < nargs)
c5aa993b 171 {
ad2f7632
DJ
172 type_print (args[i++].type, "", stream, 0);
173
174 if (i == nargs && varargs)
175 fprintf_filtered (stream, ", ...");
176 else if (i < nargs)
177 fprintf_filtered (stream, ", ");
c5aa993b 178 }
c906108c 179 }
ad2f7632
DJ
180 else if (varargs)
181 fprintf_filtered (stream, "...");
c906108c 182 else if (current_language->la_language == language_cplus)
ad2f7632 183 fprintf_filtered (stream, "void");
c5aa993b 184
c906108c
SS
185 fprintf_filtered (stream, ")");
186}
187
188
189/* Print any asterisks or open-parentheses needed before the
190 variable name (to describe its type).
191
192 On outermost call, pass 0 for PASSED_A_PTR.
193 On outermost call, SHOW > 0 means should ignore
194 any typename for TYPE and show its details.
9750e763
KB
195 SHOW is always zero on recursive calls.
196
197 NEED_POST_SPACE is non-zero when a space will be be needed
198 between a trailing qualifier and a field, variable, or function
199 name. */
c906108c
SS
200
201void
fba45db2 202c_type_print_varspec_prefix (struct type *type, struct ui_file *stream,
9750e763 203 int show, int passed_a_ptr, int need_post_space)
c906108c
SS
204{
205 char *name;
206 if (type == 0)
207 return;
208
209 if (TYPE_NAME (type) && show <= 0)
210 return;
211
212 QUIT;
213
214 switch (TYPE_CODE (type))
215 {
216 case TYPE_CODE_PTR:
248f8055 217 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, show, 1, 1);
c906108c 218 fprintf_filtered (stream, "*");
9750e763 219 c_type_print_modifier (type, stream, 1, need_post_space);
c906108c
SS
220 break;
221
0d5de010 222 case TYPE_CODE_MEMBERPTR:
248f8055 223 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, show, 0, 0);
c906108c
SS
224 name = type_name_no_tag (TYPE_DOMAIN_TYPE (type));
225 if (name)
226 fputs_filtered (name, stream);
227 else
c5aa993b 228 c_type_print_base (TYPE_DOMAIN_TYPE (type), stream, 0, passed_a_ptr);
0d5de010 229 fprintf_filtered (stream, "::*");
c906108c
SS
230 break;
231
0d5de010 232 case TYPE_CODE_METHODPTR:
248f8055 233 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, show, 0, 0);
0d5de010
DJ
234 fprintf_filtered (stream, "(");
235 name = type_name_no_tag (TYPE_DOMAIN_TYPE (type));
236 if (name)
237 fputs_filtered (name, stream);
238 else
239 c_type_print_base (TYPE_DOMAIN_TYPE (type), stream, 0, passed_a_ptr);
240 fprintf_filtered (stream, "::*");
c906108c
SS
241 break;
242
243 case TYPE_CODE_REF:
248f8055 244 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, show, 1, 0);
c906108c 245 fprintf_filtered (stream, "&");
9750e763 246 c_type_print_modifier (type, stream, 1, need_post_space);
c906108c
SS
247 break;
248
0d5de010 249 case TYPE_CODE_METHOD:
c906108c 250 case TYPE_CODE_FUNC:
248f8055 251 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, show, 0, 0);
c906108c
SS
252 if (passed_a_ptr)
253 fprintf_filtered (stream, "(");
254 break;
255
256 case TYPE_CODE_ARRAY:
248f8055 257 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, show, 0, 0);
c906108c
SS
258 if (passed_a_ptr)
259 fprintf_filtered (stream, "(");
260 break;
261
248f8055
DJ
262 case TYPE_CODE_TYPEDEF:
263 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, show, 0, 0);
264 break;
265
c906108c
SS
266 case TYPE_CODE_UNDEF:
267 case TYPE_CODE_STRUCT:
268 case TYPE_CODE_UNION:
269 case TYPE_CODE_ENUM:
270 case TYPE_CODE_INT:
271 case TYPE_CODE_FLT:
272 case TYPE_CODE_VOID:
273 case TYPE_CODE_ERROR:
274 case TYPE_CODE_CHAR:
275 case TYPE_CODE_BOOL:
276 case TYPE_CODE_SET:
277 case TYPE_CODE_RANGE:
278 case TYPE_CODE_STRING:
279 case TYPE_CODE_BITSTRING:
280 case TYPE_CODE_COMPLEX:
c4093a6a 281 case TYPE_CODE_TEMPLATE:
5c4e30ca 282 case TYPE_CODE_NAMESPACE:
c906108c 283 /* These types need no prefix. They are listed here so that
c5aa993b 284 gcc -Wall will reveal any types that haven't been handled. */
c906108c 285 break;
c4093a6a 286 default:
3d263c1d 287 error (_("type not handled in c_type_print_varspec_prefix()"));
c4093a6a 288 break;
c906108c
SS
289 }
290}
291
292/* Print out "const" and "volatile" attributes.
293 TYPE is a pointer to the type being printed out.
294 STREAM is the output destination.
295 NEED_SPACE = 1 indicates an initial white space is needed */
296
297static void
47663de5
MS
298c_type_print_modifier (struct type *type, struct ui_file *stream,
299 int need_pre_space, int need_post_space)
c906108c 300{
47663de5 301 int did_print_modifier = 0;
321432c0 302 const char *address_space_id;
c5aa993b 303
7f0b5c30
JB
304 /* We don't print `const' qualifiers for references --- since all
305 operators affect the thing referenced, not the reference itself,
306 every reference is `const'. */
307 if (TYPE_CONST (type)
308 && TYPE_CODE (type) != TYPE_CODE_REF)
c906108c
SS
309 {
310 if (need_pre_space)
c5aa993b 311 fprintf_filtered (stream, " ");
c906108c 312 fprintf_filtered (stream, "const");
47663de5 313 did_print_modifier = 1;
c906108c 314 }
c5aa993b 315
c906108c
SS
316 if (TYPE_VOLATILE (type))
317 {
47663de5 318 if (did_print_modifier || need_pre_space)
c5aa993b 319 fprintf_filtered (stream, " ");
c906108c 320 fprintf_filtered (stream, "volatile");
47663de5 321 did_print_modifier = 1;
c906108c
SS
322 }
323
2fdde8f8 324 address_space_id = address_space_int_to_name (TYPE_INSTANCE_FLAGS (type));
47663de5
MS
325 if (address_space_id)
326 {
327 if (did_print_modifier || need_pre_space)
328 fprintf_filtered (stream, " ");
329 fprintf_filtered (stream, "@%s", address_space_id);
330 did_print_modifier = 1;
331 }
332
333 if (did_print_modifier && need_post_space)
c906108c
SS
334 fprintf_filtered (stream, " ");
335}
336
337
0d5de010
DJ
338/* Print out the arguments of TYPE, which should have TYPE_CODE_METHOD
339 or TYPE_CODE_FUNC, to STREAM. Artificial arguments, such as "this"
340 in non-static methods, are displayed. */
c906108c
SS
341
342static void
fba45db2 343c_type_print_args (struct type *type, struct ui_file *stream)
c906108c 344{
0d5de010 345 int i, len;
ad2f7632 346 struct field *args;
0d5de010 347 int printed_any = 0;
c906108c
SS
348
349 fprintf_filtered (stream, "(");
ad2f7632 350 args = TYPE_FIELDS (type);
0d5de010 351 len = TYPE_NFIELDS (type);
ad2f7632 352
0d5de010
DJ
353 for (i = 0; i < TYPE_NFIELDS (type); i++)
354 {
355 if (printed_any)
c906108c 356 {
0d5de010
DJ
357 fprintf_filtered (stream, ", ");
358 wrap_here (" ");
c906108c 359 }
0d5de010
DJ
360
361 c_print_type (TYPE_FIELD_TYPE (type, i), "", stream, -1, 0);
362 printed_any = 1;
c906108c 363 }
0d5de010
DJ
364
365 if (printed_any && TYPE_VARARGS (type))
c906108c 366 {
0d5de010
DJ
367 /* Print out a trailing ellipsis for varargs functions. Ignore
368 TYPE_VARARGS if the function has no named arguments; that
369 represents unprototyped (K&R style) C functions. */
370 if (printed_any && TYPE_VARARGS (type))
371 {
372 fprintf_filtered (stream, ", ");
373 wrap_here (" ");
374 fprintf_filtered (stream, "...");
375 }
c906108c 376 }
0d5de010
DJ
377 else if (!printed_any
378 && (TYPE_PROTOTYPED (type)
379 || current_language->la_language == language_cplus))
380 fprintf_filtered (stream, "void");
c5aa993b 381
c906108c
SS
382 fprintf_filtered (stream, ")");
383}
384
dfcd3bfb
JM
385
386/* Return true iff the j'th overloading of the i'th method of TYPE
387 is a type conversion operator, like `operator int () { ... }'.
388 When listing a class's methods, we don't print the return type of
389 such operators. */
390static int
391is_type_conversion_operator (struct type *type, int i, int j)
392{
393 /* I think the whole idea of recognizing type conversion operators
394 by their name is pretty terrible. But I don't think our present
395 data structure gives us any other way to tell. If you know of
396 some other way, feel free to rewrite this function. */
397 char *name = TYPE_FN_FIELDLIST_NAME (type, i);
398
399 if (strncmp (name, "operator", 8) != 0)
400 return 0;
401
402 name += 8;
403 if (! strchr (" \t\f\n\r", *name))
404 return 0;
405
406 while (strchr (" \t\f\n\r", *name))
407 name++;
408
b0129042
DJ
409 if (!('a' <= *name && *name <= 'z')
410 && !('A' <= *name && *name <= 'Z')
411 && *name != '_')
412 /* If this doesn't look like the start of an identifier, then it
413 isn't a type conversion operator. */
414 return 0;
415 else if (strncmp (name, "new", 3) == 0)
dfcd3bfb
JM
416 name += 3;
417 else if (strncmp (name, "delete", 6) == 0)
418 name += 6;
419 else
39c22d1a
JM
420 /* If it doesn't look like new or delete, it's a type conversion
421 operator. */
422 return 1;
dfcd3bfb
JM
423
424 /* Is that really the end of the name? */
425 if (('a' <= *name && *name <= 'z')
426 || ('A' <= *name && *name <= 'Z')
427 || ('0' <= *name && *name <= '9')
428 || *name == '_')
429 /* No, so the identifier following "operator" must be a type name,
430 and this is a type conversion operator. */
431 return 1;
432
433 /* That was indeed the end of the name, so it was `operator new' or
434 `operator delete', neither of which are type conversion operators. */
435 return 0;
436}
437
438
439/* Given a C++ qualified identifier QID, strip off the qualifiers,
440 yielding the unqualified name. The return value is a pointer into
441 the original string.
442
443 It's a pity we don't have this information in some more structured
444 form. Even the author of this function feels that writing little
445 parsers like this everywhere is stupid. */
446static char *
447remove_qualifiers (char *qid)
448{
449 int quoted = 0; /* zero if we're not in quotes;
450 '"' if we're in a double-quoted string;
451 '\'' if we're in a single-quoted string. */
452 int depth = 0; /* number of unclosed parens we've seen */
453 char *parenstack = (char *) alloca (strlen (qid));
454 char *scan;
455 char *last = 0; /* The character after the rightmost
456 `::' token we've seen so far. */
457
458 for (scan = qid; *scan; scan++)
459 {
460 if (quoted)
461 {
462 if (*scan == quoted)
463 quoted = 0;
464 else if (*scan == '\\' && *(scan + 1))
465 scan++;
466 }
467 else if (scan[0] == ':' && scan[1] == ':')
468 {
469 /* If we're inside parenthesis (i.e., an argument list) or
470 angle brackets (i.e., a list of template arguments), then
471 we don't record the position of this :: token, since it's
472 not relevant to the top-level structure we're trying
473 to operate on. */
474 if (depth == 0)
475 {
476 last = scan + 2;
477 scan++;
478 }
479 }
480 else if (*scan == '"' || *scan == '\'')
481 quoted = *scan;
482 else if (*scan == '(')
483 parenstack[depth++] = ')';
484 else if (*scan == '[')
485 parenstack[depth++] = ']';
486 /* We're going to treat <> as a pair of matching characters,
487 since we're more likely to see those in template id's than
488 real less-than characters. What a crock. */
489 else if (*scan == '<')
490 parenstack[depth++] = '>';
491 else if (*scan == ')' || *scan == ']' || *scan == '>')
492 {
493 if (depth > 0 && parenstack[depth - 1] == *scan)
494 depth--;
495 else
496 {
497 /* We're going to do a little error recovery here. If we
498 don't find a match for *scan on the paren stack, but
499 there is something lower on the stack that does match, we
500 pop the stack to that point. */
501 int i;
502
503 for (i = depth - 1; i >= 0; i--)
504 if (parenstack[i] == *scan)
505 {
506 depth = i;
507 break;
508 }
509 }
510 }
511 }
512
513 if (last)
514 return last;
515 else
516 /* We didn't find any :: tokens at the top level, so declare the
517 whole thing an unqualified identifier. */
518 return qid;
519}
520
521
c906108c
SS
522/* Print any array sizes, function arguments or close parentheses
523 needed after the variable name (to describe its type).
524 Args work like c_type_print_varspec_prefix. */
525
526void
fba45db2
KB
527c_type_print_varspec_suffix (struct type *type, struct ui_file *stream,
528 int show, int passed_a_ptr, int demangled_args)
c906108c
SS
529{
530 if (type == 0)
531 return;
532
533 if (TYPE_NAME (type) && show <= 0)
534 return;
535
536 QUIT;
537
538 switch (TYPE_CODE (type))
539 {
540 case TYPE_CODE_ARRAY:
541 if (passed_a_ptr)
542 fprintf_filtered (stream, ")");
c5aa993b 543
c906108c 544 fprintf_filtered (stream, "[");
d5d6fca5 545 if (TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0
c5aa993b 546 && TYPE_ARRAY_UPPER_BOUND_TYPE (type) != BOUND_CANNOT_BE_DETERMINED)
c906108c
SS
547 fprintf_filtered (stream, "%d",
548 (TYPE_LENGTH (type)
549 / TYPE_LENGTH (TYPE_TARGET_TYPE (type))));
550 fprintf_filtered (stream, "]");
c5aa993b 551
248f8055
DJ
552 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
553 0, 0);
c906108c
SS
554 break;
555
0d5de010 556 case TYPE_CODE_MEMBERPTR:
248f8055
DJ
557 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
558 0, 0);
c906108c
SS
559 break;
560
0d5de010
DJ
561 case TYPE_CODE_METHODPTR:
562 fprintf_filtered (stream, ")");
248f8055
DJ
563 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
564 0, 0);
c906108c
SS
565 break;
566
567 case TYPE_CODE_PTR:
568 case TYPE_CODE_REF:
248f8055
DJ
569 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
570 1, 0);
c906108c
SS
571 break;
572
0d5de010 573 case TYPE_CODE_METHOD:
c906108c
SS
574 case TYPE_CODE_FUNC:
575 if (passed_a_ptr)
576 fprintf_filtered (stream, ")");
577 if (!demangled_args)
0d5de010 578 c_type_print_args (type, stream);
248f8055
DJ
579 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
580 passed_a_ptr, 0);
581 break;
582
583 case TYPE_CODE_TYPEDEF:
584 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
c906108c
SS
585 passed_a_ptr, 0);
586 break;
587
588 case TYPE_CODE_UNDEF:
589 case TYPE_CODE_STRUCT:
590 case TYPE_CODE_UNION:
591 case TYPE_CODE_ENUM:
592 case TYPE_CODE_INT:
593 case TYPE_CODE_FLT:
594 case TYPE_CODE_VOID:
595 case TYPE_CODE_ERROR:
596 case TYPE_CODE_CHAR:
597 case TYPE_CODE_BOOL:
598 case TYPE_CODE_SET:
599 case TYPE_CODE_RANGE:
600 case TYPE_CODE_STRING:
601 case TYPE_CODE_BITSTRING:
602 case TYPE_CODE_COMPLEX:
c4093a6a 603 case TYPE_CODE_TEMPLATE:
5c4e30ca 604 case TYPE_CODE_NAMESPACE:
c906108c 605 /* These types do not need a suffix. They are listed so that
c5aa993b 606 gcc -Wall will report types that may not have been considered. */
c906108c 607 break;
c4093a6a 608 default:
3d263c1d 609 error (_("type not handled in c_type_print_varspec_suffix()"));
c4093a6a 610 break;
c906108c
SS
611 }
612}
613
614/* Print the name of the type (or the ultimate pointer target,
615 function value or array element), or the description of a
616 structure or union.
617
618 SHOW positive means print details about the type (e.g. enum values),
619 and print structure elements passing SHOW - 1 for show.
620 SHOW negative means just print the type name or struct tag if there is one.
621 If there is no name, print something sensible but concise like
622 "struct {...}".
623 SHOW zero means just print the type name or struct tag if there is one.
624 If there is no name, print something sensible but not as concise like
625 "struct {int x; int y;}".
626
627 LEVEL is the number of spaces to indent by.
628 We increase it for some recursive calls. */
629
630void
fba45db2
KB
631c_type_print_base (struct type *type, struct ui_file *stream, int show,
632 int level)
c906108c 633{
b02dede2
DJ
634 int i;
635 int len, real_len;
636 int lastval;
c906108c
SS
637 char *mangled_name;
638 char *demangled_name;
639 char *demangled_no_static;
c5aa993b
JM
640 enum
641 {
642 s_none, s_public, s_private, s_protected
643 }
644 section_type;
c906108c
SS
645 int need_access_label = 0;
646 int j, len2;
647
648 QUIT;
649
650 wrap_here (" ");
651 if (type == NULL)
652 {
3d263c1d 653 fputs_filtered (_("<type unknown>"), stream);
c906108c
SS
654 return;
655 }
656
657 /* When SHOW is zero or less, and there is a valid type name, then always
658 just print the type name directly from the type. */
659 /* If we have "typedef struct foo {. . .} bar;" do we want to print it
660 as "struct foo" or as "bar"? Pick the latter, because C++ folk tend
661 to expect things like "class5 *foo" rather than "struct class5 *foo". */
662
663 if (show <= 0
664 && TYPE_NAME (type) != NULL)
665 {
47663de5 666 c_type_print_modifier (type, stream, 0, 1);
c906108c
SS
667 fputs_filtered (TYPE_NAME (type), stream);
668 return;
669 }
670
671 CHECK_TYPEDEF (type);
c5aa993b 672
c906108c
SS
673 switch (TYPE_CODE (type))
674 {
675 case TYPE_CODE_TYPEDEF:
676 case TYPE_CODE_ARRAY:
677 case TYPE_CODE_PTR:
0d5de010 678 case TYPE_CODE_MEMBERPTR:
c906108c
SS
679 case TYPE_CODE_REF:
680 case TYPE_CODE_FUNC:
681 case TYPE_CODE_METHOD:
0d5de010 682 case TYPE_CODE_METHODPTR:
c906108c
SS
683 c_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
684 break;
685
686 case TYPE_CODE_STRUCT:
47663de5 687 c_type_print_modifier (type, stream, 0, 1);
c906108c
SS
688 /* Note TYPE_CODE_STRUCT and TYPE_CODE_CLASS have the same value,
689 * so we use another means for distinguishing them.
690 */
c5aa993b
JM
691 if (HAVE_CPLUS_STRUCT (type))
692 {
693 switch (TYPE_DECLARED_TYPE (type))
694 {
695 case DECLARED_TYPE_CLASS:
696 fprintf_filtered (stream, "class ");
697 break;
698 case DECLARED_TYPE_UNION:
699 fprintf_filtered (stream, "union ");
700 break;
701 case DECLARED_TYPE_STRUCT:
702 fprintf_filtered (stream, "struct ");
703 break;
704 default:
705 /* If there is a CPLUS_STRUCT, assume class if not
706 * otherwise specified in the declared_type field.
707 */
708 fprintf_filtered (stream, "class ");
709 break;
710 } /* switch */
711 }
712 else
713 {
714 /* If not CPLUS_STRUCT, then assume it's a C struct */
715 fprintf_filtered (stream, "struct ");
716 }
c906108c
SS
717 goto struct_union;
718
719 case TYPE_CODE_UNION:
47663de5 720 c_type_print_modifier (type, stream, 0, 1);
c906108c
SS
721 fprintf_filtered (stream, "union ");
722
723 struct_union:
724
725 /* Print the tag if it exists.
726 * The HP aCC compiler emits
727 * a spurious "{unnamed struct}"/"{unnamed union}"/"{unnamed enum}"
728 * tag for unnamed struct/union/enum's, which we don't
729 * want to print.
730 */
731 if (TYPE_TAG_NAME (type) != NULL &&
c5aa993b 732 strncmp (TYPE_TAG_NAME (type), "{unnamed", 8))
c906108c
SS
733 {
734 fputs_filtered (TYPE_TAG_NAME (type), stream);
735 if (show > 0)
736 fputs_filtered (" ", stream);
737 }
738 wrap_here (" ");
739 if (show < 0)
740 {
741 /* If we just printed a tag name, no need to print anything else. */
742 if (TYPE_TAG_NAME (type) == NULL)
743 fprintf_filtered (stream, "{...}");
744 }
745 else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
746 {
747 cp_type_print_derivation_info (stream, type);
c5aa993b 748
c906108c
SS
749 fprintf_filtered (stream, "{\n");
750 if ((TYPE_NFIELDS (type) == 0) && (TYPE_NFN_FIELDS (type) == 0))
751 {
74a9bb82 752 if (TYPE_STUB (type))
3d263c1d 753 fprintfi_filtered (level + 4, stream, _("<incomplete type>\n"));
c906108c 754 else
3d263c1d 755 fprintfi_filtered (level + 4, stream, _("<no data fields>\n"));
c906108c
SS
756 }
757
758 /* Start off with no specific section type, so we can print
759 one for the first field we find, and use that section type
760 thereafter until we find another type. */
761
762 section_type = s_none;
763
c5aa993b
JM
764 /* For a class, if all members are private, there's no need
765 for a "private:" label; similarly, for a struct or union
766 masquerading as a class, if all members are public, there's
767 no need for a "public:" label. */
768
769 if ((TYPE_DECLARED_TYPE (type) == DECLARED_TYPE_CLASS) ||
770 (TYPE_DECLARED_TYPE (type) == DECLARED_TYPE_TEMPLATE))
771 {
772 QUIT;
773 len = TYPE_NFIELDS (type);
774 for (i = TYPE_N_BASECLASSES (type); i < len; i++)
775 if (!TYPE_FIELD_PRIVATE (type, i))
776 {
777 need_access_label = 1;
778 break;
779 }
780 QUIT;
781 if (!need_access_label)
782 {
783 len2 = TYPE_NFN_FIELDS (type);
784 for (j = 0; j < len2; j++)
785 {
786 len = TYPE_FN_FIELDLIST_LENGTH (type, j);
787 for (i = 0; i < len; i++)
788 if (!TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type, j), i))
789 {
790 need_access_label = 1;
791 break;
792 }
793 if (need_access_label)
794 break;
795 }
796 }
797 }
798 else if ((TYPE_DECLARED_TYPE (type) == DECLARED_TYPE_STRUCT) ||
799 (TYPE_DECLARED_TYPE (type) == DECLARED_TYPE_UNION))
800 {
801 QUIT;
802 len = TYPE_NFIELDS (type);
803 for (i = TYPE_N_BASECLASSES (type); i < len; i++)
804 if (TYPE_FIELD_PRIVATE (type, i) || TYPE_FIELD_PROTECTED (type, i))
805 {
806 need_access_label = 1;
807 break;
808 }
809 QUIT;
810 if (!need_access_label)
811 {
812 len2 = TYPE_NFN_FIELDS (type);
813 for (j = 0; j < len2; j++)
814 {
815 QUIT;
816 len = TYPE_FN_FIELDLIST_LENGTH (type, j);
817 for (i = 0; i < len; i++)
818 if (TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type, j), i) ||
819 TYPE_FN_FIELD_PROTECTED (TYPE_FN_FIELDLIST1 (type, j), i))
820 {
821 need_access_label = 1;
822 break;
823 }
824 if (need_access_label)
825 break;
826 }
827 }
828 }
c906108c
SS
829
830 /* If there is a base class for this type,
831 do not print the field that it occupies. */
832
833 len = TYPE_NFIELDS (type);
834 for (i = TYPE_N_BASECLASSES (type); i < len; i++)
835 {
836 QUIT;
837 /* Don't print out virtual function table. */
c5aa993b 838 /* HP ANSI C++ case */
bf896cb0
AC
839 if (TYPE_HAS_VTABLE (type)
840 && (strncmp (TYPE_FIELD_NAME (type, i), "__vfp", 5) == 0))
c5aa993b
JM
841 continue;
842 /* Other compilers */
bf896cb0 843 if (strncmp (TYPE_FIELD_NAME (type, i), "_vptr", 5) == 0
c906108c
SS
844 && is_cplus_marker ((TYPE_FIELD_NAME (type, i))[5]))
845 continue;
846
847 /* If this is a C++ class we can print the various C++ section
c5aa993b 848 labels. */
c906108c
SS
849
850 if (HAVE_CPLUS_STRUCT (type) && need_access_label)
851 {
852 if (TYPE_FIELD_PROTECTED (type, i))
853 {
854 if (section_type != s_protected)
855 {
856 section_type = s_protected;
857 fprintfi_filtered (level + 2, stream,
858 "protected:\n");
859 }
860 }
861 else if (TYPE_FIELD_PRIVATE (type, i))
862 {
863 if (section_type != s_private)
864 {
865 section_type = s_private;
866 fprintfi_filtered (level + 2, stream, "private:\n");
867 }
868 }
869 else
870 {
871 if (section_type != s_public)
872 {
873 section_type = s_public;
874 fprintfi_filtered (level + 2, stream, "public:\n");
875 }
876 }
877 }
878
879 print_spaces_filtered (level + 4, stream);
880 if (TYPE_FIELD_STATIC (type, i))
881 {
882 fprintf_filtered (stream, "static ");
883 }
884 c_print_type (TYPE_FIELD_TYPE (type, i),
885 TYPE_FIELD_NAME (type, i),
886 stream, show - 1, level + 4);
887 if (!TYPE_FIELD_STATIC (type, i)
888 && TYPE_FIELD_PACKED (type, i))
889 {
890 /* It is a bitfield. This code does not attempt
891 to look at the bitpos and reconstruct filler,
892 unnamed fields. This would lead to misleading
893 results if the compiler does not put out fields
894 for such things (I don't know what it does). */
895 fprintf_filtered (stream, " : %d",
896 TYPE_FIELD_BITSIZE (type, i));
897 }
898 fprintf_filtered (stream, ";\n");
899 }
900
b02dede2
DJ
901 /* If there are both fields and methods, put a blank line
902 between them. Make sure to count only method that we will
903 display; artificial methods will be hidden. */
c906108c 904 len = TYPE_NFN_FIELDS (type);
b02dede2
DJ
905 real_len = 0;
906 for (i = 0; i < len; i++)
907 {
908 struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
909 int len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
910 int j;
911 for (j = 0; j < len2; j++)
912 if (!TYPE_FN_FIELD_ARTIFICIAL (f, j))
913 real_len++;
914 }
915 if (real_len > 0 && section_type != s_none)
c5aa993b 916 fprintf_filtered (stream, "\n");
c906108c
SS
917
918 /* C++: print out the methods */
919 for (i = 0; i < len; i++)
920 {
921 struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
922 int j, len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
923 char *method_name = TYPE_FN_FIELDLIST_NAME (type, i);
924 char *name = type_name_no_tag (type);
6314a349 925 int is_constructor = name && strcmp (method_name, name) == 0;
c906108c
SS
926 for (j = 0; j < len2; j++)
927 {
928 char *physname = TYPE_FN_FIELD_PHYSNAME (f, j);
c5aa993b 929 int is_full_physname_constructor =
015a42b4
JB
930 is_constructor_name (physname)
931 || is_destructor_name (physname)
932 || method_name[0] == '~';
933
b02dede2
DJ
934 /* Do not print out artificial methods. */
935 if (TYPE_FN_FIELD_ARTIFICIAL (f, j))
936 continue;
c906108c
SS
937
938 QUIT;
939 if (TYPE_FN_FIELD_PROTECTED (f, j))
940 {
941 if (section_type != s_protected)
942 {
943 section_type = s_protected;
944 fprintfi_filtered (level + 2, stream,
945 "protected:\n");
946 }
947 }
948 else if (TYPE_FN_FIELD_PRIVATE (f, j))
949 {
950 if (section_type != s_private)
951 {
952 section_type = s_private;
953 fprintfi_filtered (level + 2, stream, "private:\n");
954 }
955 }
956 else
957 {
958 if (section_type != s_public)
959 {
960 section_type = s_public;
961 fprintfi_filtered (level + 2, stream, "public:\n");
962 }
963 }
964
965 print_spaces_filtered (level + 4, stream);
966 if (TYPE_FN_FIELD_VIRTUAL_P (f, j))
967 fprintf_filtered (stream, "virtual ");
968 else if (TYPE_FN_FIELD_STATIC_P (f, j))
969 fprintf_filtered (stream, "static ");
970 if (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)) == 0)
971 {
972 /* Keep GDB from crashing here. */
3d263c1d 973 fprintf_filtered (stream, _("<undefined type> %s;\n"),
c5aa993b 974 TYPE_FN_FIELD_PHYSNAME (f, j));
c906108c
SS
975 break;
976 }
c5aa993b
JM
977 else if (!is_constructor && /* constructors don't have declared types */
978 !is_full_physname_constructor && /* " " */
dfcd3bfb 979 !is_type_conversion_operator (type, i, j))
c906108c
SS
980 {
981 type_print (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)),
982 "", stream, -1);
983 fputs_filtered (" ", stream);
984 }
985 if (TYPE_FN_FIELD_STUB (f, j))
986 /* Build something we can demangle. */
987 mangled_name = gdb_mangle_name (type, i, j);
988 else
989 mangled_name = TYPE_FN_FIELD_PHYSNAME (f, j);
990
991 demangled_name =
992 cplus_demangle (mangled_name,
993 DMGL_ANSI | DMGL_PARAMS);
994 if (demangled_name == NULL)
995 {
996 /* in some cases (for instance with the HP demangling),
c5aa993b
JM
997 if a function has more than 10 arguments,
998 the demangling will fail.
999 Let's try to reconstruct the function signature from
1000 the symbol information */
c906108c 1001 if (!TYPE_FN_FIELD_STUB (f, j))
ad2f7632
DJ
1002 {
1003 int staticp = TYPE_FN_FIELD_STATIC_P (f, j);
1004 struct type *mtype = TYPE_FN_FIELD_TYPE (f, j);
1005 cp_type_print_method_args (mtype,
1006 "",
1007 method_name,
1008 staticp,
1009 stream);
1010 }
c906108c 1011 else
3d263c1d 1012 fprintf_filtered (stream, _("<badly mangled name '%s'>"),
c906108c
SS
1013 mangled_name);
1014 }
1015 else
1016 {
1017 char *p;
dfcd3bfb
JM
1018 char *demangled_no_class
1019 = remove_qualifiers (demangled_name);
c5aa993b 1020
dfcd3bfb 1021 /* get rid of the `static' appended by the demangler */
c906108c
SS
1022 p = strstr (demangled_no_class, " static");
1023 if (p != NULL)
1024 {
1025 int length = p - demangled_no_class;
1026 demangled_no_static = (char *) xmalloc (length + 1);
1027 strncpy (demangled_no_static, demangled_no_class, length);
c5aa993b 1028 *(demangled_no_static + length) = '\0';
c906108c 1029 fputs_filtered (demangled_no_static, stream);
b8c9b27d 1030 xfree (demangled_no_static);
c906108c
SS
1031 }
1032 else
1033 fputs_filtered (demangled_no_class, stream);
b8c9b27d 1034 xfree (demangled_name);
c906108c
SS
1035 }
1036
1037 if (TYPE_FN_FIELD_STUB (f, j))
b8c9b27d 1038 xfree (mangled_name);
c906108c
SS
1039
1040 fprintf_filtered (stream, ";\n");
1041 }
1042 }
1043
c4093a6a
JM
1044 fprintfi_filtered (level, stream, "}");
1045
c5aa993b 1046 if (TYPE_LOCALTYPE_PTR (type) && show >= 0)
3d263c1d 1047 fprintfi_filtered (level, stream, _(" (Local at %s:%d)\n"),
c5aa993b
JM
1048 TYPE_LOCALTYPE_FILE (type),
1049 TYPE_LOCALTYPE_LINE (type));
c906108c 1050 }
c5aa993b
JM
1051 if (TYPE_CODE (type) == TYPE_CODE_TEMPLATE)
1052 goto go_back;
c906108c
SS
1053 break;
1054
1055 case TYPE_CODE_ENUM:
47663de5 1056 c_type_print_modifier (type, stream, 0, 1);
c906108c 1057 /* HP C supports sized enums */
f83f82bc 1058 if (deprecated_hp_som_som_object_present)
c5aa993b
JM
1059 switch (TYPE_LENGTH (type))
1060 {
1061 case 1:
1062 fputs_filtered ("char ", stream);
1063 break;
1064 case 2:
1065 fputs_filtered ("short ", stream);
1066 break;
1067 default:
1068 break;
1069 }
1070 fprintf_filtered (stream, "enum ");
c906108c
SS
1071 /* Print the tag name if it exists.
1072 The aCC compiler emits a spurious
1073 "{unnamed struct}"/"{unnamed union}"/"{unnamed enum}"
1074 tag for unnamed struct/union/enum's, which we don't
1075 want to print. */
1076 if (TYPE_TAG_NAME (type) != NULL &&
c5aa993b 1077 strncmp (TYPE_TAG_NAME (type), "{unnamed", 8))
c906108c
SS
1078 {
1079 fputs_filtered (TYPE_TAG_NAME (type), stream);
1080 if (show > 0)
1081 fputs_filtered (" ", stream);
1082 }
1083
1084 wrap_here (" ");
1085 if (show < 0)
1086 {
1087 /* If we just printed a tag name, no need to print anything else. */
1088 if (TYPE_TAG_NAME (type) == NULL)
1089 fprintf_filtered (stream, "{...}");
1090 }
1091 else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
1092 {
1093 fprintf_filtered (stream, "{");
1094 len = TYPE_NFIELDS (type);
1095 lastval = 0;
1096 for (i = 0; i < len; i++)
1097 {
1098 QUIT;
c5aa993b
JM
1099 if (i)
1100 fprintf_filtered (stream, ", ");
c906108c
SS
1101 wrap_here (" ");
1102 fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
1103 if (lastval != TYPE_FIELD_BITPOS (type, i))
1104 {
1105 fprintf_filtered (stream, " = %d", TYPE_FIELD_BITPOS (type, i));
1106 lastval = TYPE_FIELD_BITPOS (type, i);
1107 }
1108 lastval++;
1109 }
1110 fprintf_filtered (stream, "}");
1111 }
1112 break;
1113
1114 case TYPE_CODE_VOID:
1115 fprintf_filtered (stream, "void");
1116 break;
1117
1118 case TYPE_CODE_UNDEF:
3d263c1d 1119 fprintf_filtered (stream, _("struct <unknown>"));
c906108c
SS
1120 break;
1121
1122 case TYPE_CODE_ERROR:
3d263c1d 1123 fprintf_filtered (stream, _("<unknown type>"));
c906108c
SS
1124 break;
1125
1126 case TYPE_CODE_RANGE:
1127 /* This should not occur */
3d263c1d 1128 fprintf_filtered (stream, _("<range type>"));
c906108c
SS
1129 break;
1130
1131 case TYPE_CODE_TEMPLATE:
1132 /* Called on "ptype t" where "t" is a template.
1133 Prints the template header (with args), e.g.:
c5aa993b 1134 template <class T1, class T2> class "
c906108c
SS
1135 and then merges with the struct/union/class code to
1136 print the rest of the definition. */
47663de5 1137 c_type_print_modifier (type, stream, 0, 1);
c906108c 1138 fprintf_filtered (stream, "template <");
c5aa993b
JM
1139 for (i = 0; i < TYPE_NTEMPLATE_ARGS (type); i++)
1140 {
1141 struct template_arg templ_arg;
1142 templ_arg = TYPE_TEMPLATE_ARG (type, i);
1143 fprintf_filtered (stream, "class %s", templ_arg.name);
1144 if (i < TYPE_NTEMPLATE_ARGS (type) - 1)
1145 fprintf_filtered (stream, ", ");
1146 }
c906108c
SS
1147 fprintf_filtered (stream, "> class ");
1148 /* Yuck, factor this out to a subroutine so we can call
1149 it and return to the point marked with the "goback:" label... - RT */
c5aa993b
JM
1150 goto struct_union;
1151 go_back:
1152 if (TYPE_NINSTANTIATIONS (type) > 0)
1153 {
3d263c1d 1154 fprintf_filtered (stream, _("\ntemplate instantiations:\n"));
c5aa993b
JM
1155 for (i = 0; i < TYPE_NINSTANTIATIONS (type); i++)
1156 {
1157 fprintf_filtered (stream, " ");
1158 c_type_print_base (TYPE_INSTANTIATION (type, i), stream, 0, level);
1159 if (i < TYPE_NINSTANTIATIONS (type) - 1)
1160 fprintf_filtered (stream, "\n");
1161 }
1162 }
c906108c 1163 break;
c5aa993b 1164
5c4e30ca
DC
1165 case TYPE_CODE_NAMESPACE:
1166 fputs_filtered ("namespace ", stream);
1167 fputs_filtered (TYPE_TAG_NAME (type), stream);
1168 break;
1169
c906108c
SS
1170 default:
1171 /* Handle types not explicitly handled by the other cases,
c5aa993b
JM
1172 such as fundamental types. For these, just print whatever
1173 the type name is, as recorded in the type itself. If there
1174 is no type name, then complain. */
c906108c
SS
1175 if (TYPE_NAME (type) != NULL)
1176 {
47663de5 1177 c_type_print_modifier (type, stream, 0, 1);
c906108c
SS
1178 fputs_filtered (TYPE_NAME (type), stream);
1179 }
1180 else
1181 {
1182 /* At least for dump_symtab, it is important that this not be
1183 an error (). */
3d263c1d 1184 fprintf_filtered (stream, _("<invalid type code %d>"),
c906108c
SS
1185 TYPE_CODE (type));
1186 }
1187 break;
1188 }
1189}
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