* p-typeprint.c (pascal_type_print_varspec_prefix): Update.
[deliverable/binutils-gdb.git] / gdb / c-typeprint.c
1 /* Support for printing C and C++ types for GDB, the GNU debugger.
2 Copyright (C) 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1998,
3 1999, 2000, 2001, 2002, 2003, 2006, 2007, 2008, 2009, 2010
4 Free Software Foundation, Inc.
5
6 This file is part of GDB.
7
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 3 of the License, or
11 (at your option) any later version.
12
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.
17
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20
21 #include "defs.h"
22 #include "gdb_obstack.h"
23 #include "bfd.h" /* Binary File Description */
24 #include "symtab.h"
25 #include "gdbtypes.h"
26 #include "expression.h"
27 #include "value.h"
28 #include "gdbcore.h"
29 #include "target.h"
30 #include "language.h"
31 #include "demangle.h"
32 #include "c-lang.h"
33 #include "typeprint.h"
34 #include "cp-abi.h"
35
36 #include "gdb_string.h"
37 #include <errno.h>
38
39 static void cp_type_print_method_args (struct type *mtype, char *prefix,
40 char *varstring, int staticp,
41 struct ui_file *stream);
42
43 static void c_type_print_args (struct type *, struct ui_file *);
44
45 static void cp_type_print_derivation_info (struct ui_file *, struct type *);
46
47 static void c_type_print_varspec_prefix (struct type *, struct ui_file *, int,
48 int, int);
49
50 /* Print "const", "volatile", or address space modifiers. */
51 static void c_type_print_modifier (struct type *, struct ui_file *,
52 int, int);
53 \f
54
55
56
57 /* LEVEL is the depth to indent lines by. */
58
59 void
60 c_print_type (struct type *type, char *varstring, struct ui_file *stream,
61 int show, int level)
62 {
63 enum type_code code;
64 int demangled_args;
65 int need_post_space;
66
67 if (show > 0)
68 CHECK_TYPEDEF (type);
69
70 c_type_print_base (type, stream, show, level);
71 code = TYPE_CODE (type);
72 if ((varstring != NULL && *varstring != '\0')
73 /* Need a space if going to print stars or brackets;
74 but not if we will print just a type name. */
75 || ((show > 0 || TYPE_NAME (type) == 0)
76 && (code == TYPE_CODE_PTR || code == TYPE_CODE_FUNC
77 || code == TYPE_CODE_METHOD
78 || code == TYPE_CODE_ARRAY
79 || code == TYPE_CODE_MEMBERPTR
80 || code == TYPE_CODE_METHODPTR
81 || code == TYPE_CODE_REF)))
82 fputs_filtered (" ", stream);
83 need_post_space = (varstring != NULL && strcmp (varstring, "") != 0);
84 c_type_print_varspec_prefix (type, stream, show, 0, need_post_space);
85
86 if (varstring != NULL)
87 {
88 fputs_filtered (varstring, stream);
89
90 /* For demangled function names, we have the arglist as part of the name,
91 so don't print an additional pair of ()'s */
92
93 demangled_args = strchr (varstring, '(') != NULL;
94 c_type_print_varspec_suffix (type, stream, show, 0, demangled_args);
95 }
96 }
97
98 /* Print a typedef using C syntax. TYPE is the underlying type.
99 NEW_SYMBOL is the symbol naming the type. STREAM is the stream on
100 which to print. */
101
102 void
103 c_print_typedef (struct type *type, struct symbol *new_symbol,
104 struct ui_file *stream)
105 {
106 CHECK_TYPEDEF (type);
107 fprintf_filtered (stream, "typedef ");
108 type_print (type, "", stream, 0);
109 if (TYPE_NAME ((SYMBOL_TYPE (new_symbol))) == 0
110 || strcmp (TYPE_NAME ((SYMBOL_TYPE (new_symbol))),
111 SYMBOL_LINKAGE_NAME (new_symbol)) != 0)
112 fprintf_filtered (stream, " %s", SYMBOL_PRINT_NAME (new_symbol));
113 fprintf_filtered (stream, ";\n");
114 }
115
116 /* If TYPE is a derived type, then print out derivation information.
117 Print only the actual base classes of this type, not the base classes
118 of the base classes. I.E. for the derivation hierarchy:
119
120 class A { int a; };
121 class B : public A {int b; };
122 class C : public B {int c; };
123
124 Print the type of class C as:
125
126 class C : public B {
127 int c;
128 }
129
130 Not as the following (like gdb used to), which is not legal C++ syntax for
131 derived types and may be confused with the multiple inheritance form:
132
133 class C : public B : public A {
134 int c;
135 }
136
137 In general, gdb should try to print the types as closely as possible to
138 the form that they appear in the source code.
139 Note that in case of protected derivation gcc will not say 'protected'
140 but 'private'. The HP's aCC compiler emits specific information for
141 derivation via protected inheritance, so gdb can print it out */
142
143 static void
144 cp_type_print_derivation_info (struct ui_file *stream, struct type *type)
145 {
146 char *name;
147 int i;
148
149 for (i = 0; i < TYPE_N_BASECLASSES (type); i++)
150 {
151 fputs_filtered (i == 0 ? ": " : ", ", stream);
152 fprintf_filtered (stream, "%s%s ",
153 BASETYPE_VIA_PUBLIC (type, i) ? "public"
154 : (TYPE_FIELD_PROTECTED (type, i) ? "protected" : "private"),
155 BASETYPE_VIA_VIRTUAL (type, i) ? " virtual" : "");
156 name = type_name_no_tag (TYPE_BASECLASS (type, i));
157 fprintf_filtered (stream, "%s", name ? name : "(null)");
158 }
159 if (i > 0)
160 {
161 fputs_filtered (" ", stream);
162 }
163 }
164
165 /* Print the C++ method arguments ARGS to the file STREAM. */
166
167 static void
168 cp_type_print_method_args (struct type *mtype, char *prefix, char *varstring,
169 int staticp, struct ui_file *stream)
170 {
171 struct field *args = TYPE_FIELDS (mtype);
172 int nargs = TYPE_NFIELDS (mtype);
173 int varargs = TYPE_VARARGS (mtype);
174 int i;
175
176 fprintf_symbol_filtered (stream, prefix, language_cplus, DMGL_ANSI);
177 fprintf_symbol_filtered (stream, varstring, language_cplus, DMGL_ANSI);
178 fputs_filtered ("(", stream);
179
180 /* Skip the class variable. */
181 i = staticp ? 0 : 1;
182 if (nargs > i)
183 {
184 while (i < nargs)
185 {
186 type_print (args[i++].type, "", stream, 0);
187
188 if (i == nargs && varargs)
189 fprintf_filtered (stream, ", ...");
190 else if (i < nargs)
191 fprintf_filtered (stream, ", ");
192 }
193 }
194 else if (varargs)
195 fprintf_filtered (stream, "...");
196 else if (current_language->la_language == language_cplus)
197 fprintf_filtered (stream, "void");
198
199 fprintf_filtered (stream, ")");
200 }
201
202
203 /* Print any asterisks or open-parentheses needed before the
204 variable name (to describe its type).
205
206 On outermost call, pass 0 for PASSED_A_PTR.
207 On outermost call, SHOW > 0 means should ignore
208 any typename for TYPE and show its details.
209 SHOW is always zero on recursive calls.
210
211 NEED_POST_SPACE is non-zero when a space will be be needed
212 between a trailing qualifier and a field, variable, or function
213 name. */
214
215 void
216 c_type_print_varspec_prefix (struct type *type, struct ui_file *stream,
217 int show, int passed_a_ptr, int need_post_space)
218 {
219 char *name;
220 if (type == 0)
221 return;
222
223 if (TYPE_NAME (type) && show <= 0)
224 return;
225
226 QUIT;
227
228 switch (TYPE_CODE (type))
229 {
230 case TYPE_CODE_PTR:
231 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, show, 1, 1);
232 fprintf_filtered (stream, "*");
233 c_type_print_modifier (type, stream, 1, need_post_space);
234 break;
235
236 case TYPE_CODE_MEMBERPTR:
237 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, show, 0, 0);
238 name = type_name_no_tag (TYPE_DOMAIN_TYPE (type));
239 if (name)
240 fputs_filtered (name, stream);
241 else
242 c_type_print_base (TYPE_DOMAIN_TYPE (type), stream, 0, passed_a_ptr);
243 fprintf_filtered (stream, "::*");
244 break;
245
246 case TYPE_CODE_METHODPTR:
247 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, show, 0, 0);
248 fprintf_filtered (stream, "(");
249 name = type_name_no_tag (TYPE_DOMAIN_TYPE (type));
250 if (name)
251 fputs_filtered (name, stream);
252 else
253 c_type_print_base (TYPE_DOMAIN_TYPE (type), stream, 0, passed_a_ptr);
254 fprintf_filtered (stream, "::*");
255 break;
256
257 case TYPE_CODE_REF:
258 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, show, 1, 0);
259 fprintf_filtered (stream, "&");
260 c_type_print_modifier (type, stream, 1, need_post_space);
261 break;
262
263 case TYPE_CODE_METHOD:
264 case TYPE_CODE_FUNC:
265 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, show, 0, 0);
266 if (passed_a_ptr)
267 fprintf_filtered (stream, "(");
268 break;
269
270 case TYPE_CODE_ARRAY:
271 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, show, 0, 0);
272 if (passed_a_ptr)
273 fprintf_filtered (stream, "(");
274 break;
275
276 case TYPE_CODE_TYPEDEF:
277 c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, show, 0, 0);
278 break;
279
280 case TYPE_CODE_UNDEF:
281 case TYPE_CODE_STRUCT:
282 case TYPE_CODE_UNION:
283 case TYPE_CODE_ENUM:
284 case TYPE_CODE_INT:
285 case TYPE_CODE_FLT:
286 case TYPE_CODE_VOID:
287 case TYPE_CODE_ERROR:
288 case TYPE_CODE_CHAR:
289 case TYPE_CODE_BOOL:
290 case TYPE_CODE_SET:
291 case TYPE_CODE_RANGE:
292 case TYPE_CODE_STRING:
293 case TYPE_CODE_BITSTRING:
294 case TYPE_CODE_COMPLEX:
295 case TYPE_CODE_NAMESPACE:
296 case TYPE_CODE_DECFLOAT:
297 /* These types need no prefix. They are listed here so that
298 gcc -Wall will reveal any types that haven't been handled. */
299 break;
300 default:
301 error (_("type not handled in c_type_print_varspec_prefix()"));
302 break;
303 }
304 }
305
306 /* Print out "const" and "volatile" attributes.
307 TYPE is a pointer to the type being printed out.
308 STREAM is the output destination.
309 NEED_SPACE = 1 indicates an initial white space is needed */
310
311 static void
312 c_type_print_modifier (struct type *type, struct ui_file *stream,
313 int need_pre_space, int need_post_space)
314 {
315 int did_print_modifier = 0;
316 const char *address_space_id;
317
318 /* We don't print `const' qualifiers for references --- since all
319 operators affect the thing referenced, not the reference itself,
320 every reference is `const'. */
321 if (TYPE_CONST (type)
322 && TYPE_CODE (type) != TYPE_CODE_REF)
323 {
324 if (need_pre_space)
325 fprintf_filtered (stream, " ");
326 fprintf_filtered (stream, "const");
327 did_print_modifier = 1;
328 }
329
330 if (TYPE_VOLATILE (type))
331 {
332 if (did_print_modifier || need_pre_space)
333 fprintf_filtered (stream, " ");
334 fprintf_filtered (stream, "volatile");
335 did_print_modifier = 1;
336 }
337
338 address_space_id = address_space_int_to_name (get_type_arch (type),
339 TYPE_INSTANCE_FLAGS (type));
340 if (address_space_id)
341 {
342 if (did_print_modifier || need_pre_space)
343 fprintf_filtered (stream, " ");
344 fprintf_filtered (stream, "@%s", address_space_id);
345 did_print_modifier = 1;
346 }
347
348 if (did_print_modifier && need_post_space)
349 fprintf_filtered (stream, " ");
350 }
351
352
353 /* Print out the arguments of TYPE, which should have TYPE_CODE_METHOD
354 or TYPE_CODE_FUNC, to STREAM. Artificial arguments, such as "this"
355 in non-static methods, are displayed. */
356
357 static void
358 c_type_print_args (struct type *type, struct ui_file *stream)
359 {
360 int i, len;
361 struct field *args;
362 int printed_any = 0;
363
364 fprintf_filtered (stream, "(");
365 args = TYPE_FIELDS (type);
366 len = TYPE_NFIELDS (type);
367
368 for (i = 0; i < TYPE_NFIELDS (type); i++)
369 {
370 if (printed_any)
371 {
372 fprintf_filtered (stream, ", ");
373 wrap_here (" ");
374 }
375
376 c_print_type (TYPE_FIELD_TYPE (type, i), "", stream, -1, 0);
377 printed_any = 1;
378 }
379
380 if (printed_any && TYPE_VARARGS (type))
381 {
382 /* Print out a trailing ellipsis for varargs functions. Ignore
383 TYPE_VARARGS if the function has no named arguments; that
384 represents unprototyped (K&R style) C functions. */
385 if (printed_any && TYPE_VARARGS (type))
386 {
387 fprintf_filtered (stream, ", ");
388 wrap_here (" ");
389 fprintf_filtered (stream, "...");
390 }
391 }
392 else if (!printed_any
393 && (TYPE_PROTOTYPED (type)
394 || current_language->la_language == language_cplus))
395 fprintf_filtered (stream, "void");
396
397 fprintf_filtered (stream, ")");
398 }
399
400
401 /* Return true iff the j'th overloading of the i'th method of TYPE
402 is a type conversion operator, like `operator int () { ... }'.
403 When listing a class's methods, we don't print the return type of
404 such operators. */
405 static int
406 is_type_conversion_operator (struct type *type, int i, int j)
407 {
408 /* I think the whole idea of recognizing type conversion operators
409 by their name is pretty terrible. But I don't think our present
410 data structure gives us any other way to tell. If you know of
411 some other way, feel free to rewrite this function. */
412 char *name = TYPE_FN_FIELDLIST_NAME (type, i);
413
414 if (strncmp (name, "operator", 8) != 0)
415 return 0;
416
417 name += 8;
418 if (! strchr (" \t\f\n\r", *name))
419 return 0;
420
421 while (strchr (" \t\f\n\r", *name))
422 name++;
423
424 if (!('a' <= *name && *name <= 'z')
425 && !('A' <= *name && *name <= 'Z')
426 && *name != '_')
427 /* If this doesn't look like the start of an identifier, then it
428 isn't a type conversion operator. */
429 return 0;
430 else if (strncmp (name, "new", 3) == 0)
431 name += 3;
432 else if (strncmp (name, "delete", 6) == 0)
433 name += 6;
434 else
435 /* If it doesn't look like new or delete, it's a type conversion
436 operator. */
437 return 1;
438
439 /* Is that really the end of the name? */
440 if (('a' <= *name && *name <= 'z')
441 || ('A' <= *name && *name <= 'Z')
442 || ('0' <= *name && *name <= '9')
443 || *name == '_')
444 /* No, so the identifier following "operator" must be a type name,
445 and this is a type conversion operator. */
446 return 1;
447
448 /* That was indeed the end of the name, so it was `operator new' or
449 `operator delete', neither of which are type conversion operators. */
450 return 0;
451 }
452
453
454 /* Given a C++ qualified identifier QID, strip off the qualifiers,
455 yielding the unqualified name. The return value is a pointer into
456 the original string.
457
458 It's a pity we don't have this information in some more structured
459 form. Even the author of this function feels that writing little
460 parsers like this everywhere is stupid. */
461 static char *
462 remove_qualifiers (char *qid)
463 {
464 int quoted = 0; /* zero if we're not in quotes;
465 '"' if we're in a double-quoted string;
466 '\'' if we're in a single-quoted string. */
467 int depth = 0; /* number of unclosed parens we've seen */
468 char *parenstack = (char *) alloca (strlen (qid));
469 char *scan;
470 char *last = 0; /* The character after the rightmost
471 `::' token we've seen so far. */
472
473 for (scan = qid; *scan; scan++)
474 {
475 if (quoted)
476 {
477 if (*scan == quoted)
478 quoted = 0;
479 else if (*scan == '\\' && *(scan + 1))
480 scan++;
481 }
482 else if (scan[0] == ':' && scan[1] == ':')
483 {
484 /* If we're inside parenthesis (i.e., an argument list) or
485 angle brackets (i.e., a list of template arguments), then
486 we don't record the position of this :: token, since it's
487 not relevant to the top-level structure we're trying
488 to operate on. */
489 if (depth == 0)
490 {
491 last = scan + 2;
492 scan++;
493 }
494 }
495 else if (*scan == '"' || *scan == '\'')
496 quoted = *scan;
497 else if (*scan == '(')
498 parenstack[depth++] = ')';
499 else if (*scan == '[')
500 parenstack[depth++] = ']';
501 /* We're going to treat <> as a pair of matching characters,
502 since we're more likely to see those in template id's than
503 real less-than characters. What a crock. */
504 else if (*scan == '<')
505 parenstack[depth++] = '>';
506 else if (*scan == ')' || *scan == ']' || *scan == '>')
507 {
508 if (depth > 0 && parenstack[depth - 1] == *scan)
509 depth--;
510 else
511 {
512 /* We're going to do a little error recovery here. If we
513 don't find a match for *scan on the paren stack, but
514 there is something lower on the stack that does match, we
515 pop the stack to that point. */
516 int i;
517
518 for (i = depth - 1; i >= 0; i--)
519 if (parenstack[i] == *scan)
520 {
521 depth = i;
522 break;
523 }
524 }
525 }
526 }
527
528 if (last)
529 return last;
530 else
531 /* We didn't find any :: tokens at the top level, so declare the
532 whole thing an unqualified identifier. */
533 return qid;
534 }
535
536
537 /* Print any array sizes, function arguments or close parentheses
538 needed after the variable name (to describe its type).
539 Args work like c_type_print_varspec_prefix. */
540
541 void
542 c_type_print_varspec_suffix (struct type *type, struct ui_file *stream,
543 int show, int passed_a_ptr, int demangled_args)
544 {
545 if (type == 0)
546 return;
547
548 if (TYPE_NAME (type) && show <= 0)
549 return;
550
551 QUIT;
552
553 switch (TYPE_CODE (type))
554 {
555 case TYPE_CODE_ARRAY:
556 if (passed_a_ptr)
557 fprintf_filtered (stream, ")");
558
559 fprintf_filtered (stream, "[");
560 if (TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0
561 && !TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type))
562 fprintf_filtered (stream, "%d",
563 (TYPE_LENGTH (type)
564 / TYPE_LENGTH (TYPE_TARGET_TYPE (type))));
565 fprintf_filtered (stream, "]");
566
567 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
568 0, 0);
569 break;
570
571 case TYPE_CODE_MEMBERPTR:
572 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
573 0, 0);
574 break;
575
576 case TYPE_CODE_METHODPTR:
577 fprintf_filtered (stream, ")");
578 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
579 0, 0);
580 break;
581
582 case TYPE_CODE_PTR:
583 case TYPE_CODE_REF:
584 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
585 1, 0);
586 break;
587
588 case TYPE_CODE_METHOD:
589 case TYPE_CODE_FUNC:
590 if (passed_a_ptr)
591 fprintf_filtered (stream, ")");
592 if (!demangled_args)
593 c_type_print_args (type, stream);
594 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
595 passed_a_ptr, 0);
596 break;
597
598 case TYPE_CODE_TYPEDEF:
599 c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, show,
600 passed_a_ptr, 0);
601 break;
602
603 case TYPE_CODE_UNDEF:
604 case TYPE_CODE_STRUCT:
605 case TYPE_CODE_UNION:
606 case TYPE_CODE_ENUM:
607 case TYPE_CODE_INT:
608 case TYPE_CODE_FLT:
609 case TYPE_CODE_VOID:
610 case TYPE_CODE_ERROR:
611 case TYPE_CODE_CHAR:
612 case TYPE_CODE_BOOL:
613 case TYPE_CODE_SET:
614 case TYPE_CODE_RANGE:
615 case TYPE_CODE_STRING:
616 case TYPE_CODE_BITSTRING:
617 case TYPE_CODE_COMPLEX:
618 case TYPE_CODE_NAMESPACE:
619 case TYPE_CODE_DECFLOAT:
620 /* These types do not need a suffix. They are listed so that
621 gcc -Wall will report types that may not have been considered. */
622 break;
623 default:
624 error (_("type not handled in c_type_print_varspec_suffix()"));
625 break;
626 }
627 }
628
629 /* Print the name of the type (or the ultimate pointer target,
630 function value or array element), or the description of a
631 structure or union.
632
633 SHOW positive means print details about the type (e.g. enum values),
634 and print structure elements passing SHOW - 1 for show.
635 SHOW negative means just print the type name or struct tag if there is one.
636 If there is no name, print something sensible but concise like
637 "struct {...}".
638 SHOW zero means just print the type name or struct tag if there is one.
639 If there is no name, print something sensible but not as concise like
640 "struct {int x; int y;}".
641
642 LEVEL is the number of spaces to indent by.
643 We increase it for some recursive calls. */
644
645 void
646 c_type_print_base (struct type *type, struct ui_file *stream, int show,
647 int level)
648 {
649 int i;
650 int len, real_len;
651 int lastval;
652 char *mangled_name;
653 char *demangled_name;
654 char *demangled_no_static;
655 enum
656 {
657 s_none, s_public, s_private, s_protected
658 }
659 section_type;
660 int need_access_label = 0;
661 int j, len2;
662
663 QUIT;
664
665 wrap_here (" ");
666 if (type == NULL)
667 {
668 fputs_filtered (_("<type unknown>"), stream);
669 return;
670 }
671
672 /* When SHOW is zero or less, and there is a valid type name, then always
673 just print the type name directly from the type. */
674 /* If we have "typedef struct foo {. . .} bar;" do we want to print it
675 as "struct foo" or as "bar"? Pick the latter, because C++ folk tend
676 to expect things like "class5 *foo" rather than "struct class5 *foo". */
677
678 if (show <= 0
679 && TYPE_NAME (type) != NULL)
680 {
681 c_type_print_modifier (type, stream, 0, 1);
682 fputs_filtered (TYPE_NAME (type), stream);
683 return;
684 }
685
686 CHECK_TYPEDEF (type);
687
688 switch (TYPE_CODE (type))
689 {
690 case TYPE_CODE_TYPEDEF:
691 case TYPE_CODE_ARRAY:
692 case TYPE_CODE_PTR:
693 case TYPE_CODE_MEMBERPTR:
694 case TYPE_CODE_REF:
695 case TYPE_CODE_FUNC:
696 case TYPE_CODE_METHOD:
697 case TYPE_CODE_METHODPTR:
698 c_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
699 break;
700
701 case TYPE_CODE_STRUCT:
702 c_type_print_modifier (type, stream, 0, 1);
703 if (TYPE_DECLARED_CLASS (type))
704 fprintf_filtered (stream, "class ");
705 else
706 fprintf_filtered (stream, "struct ");
707 goto struct_union;
708
709 case TYPE_CODE_UNION:
710 c_type_print_modifier (type, stream, 0, 1);
711 fprintf_filtered (stream, "union ");
712
713 struct_union:
714
715 /* Print the tag if it exists.
716 * The HP aCC compiler emits
717 * a spurious "{unnamed struct}"/"{unnamed union}"/"{unnamed enum}"
718 * tag for unnamed struct/union/enum's, which we don't
719 * want to print.
720 */
721 if (TYPE_TAG_NAME (type) != NULL
722 && strncmp (TYPE_TAG_NAME (type), "{unnamed", 8))
723 {
724 fputs_filtered (TYPE_TAG_NAME (type), stream);
725 if (show > 0)
726 fputs_filtered (" ", stream);
727 }
728 wrap_here (" ");
729 if (show < 0)
730 {
731 /* If we just printed a tag name, no need to print anything else. */
732 if (TYPE_TAG_NAME (type) == NULL)
733 fprintf_filtered (stream, "{...}");
734 }
735 else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
736 {
737 struct type *basetype;
738 int vptr_fieldno;
739
740 cp_type_print_derivation_info (stream, type);
741
742 fprintf_filtered (stream, "{\n");
743 if ((TYPE_NFIELDS (type) == 0) && (TYPE_NFN_FIELDS (type) == 0))
744 {
745 if (TYPE_STUB (type))
746 fprintfi_filtered (level + 4, stream, _("<incomplete type>\n"));
747 else
748 fprintfi_filtered (level + 4, stream, _("<no data fields>\n"));
749 }
750
751 /* Start off with no specific section type, so we can print
752 one for the first field we find, and use that section type
753 thereafter until we find another type. */
754
755 section_type = s_none;
756
757 /* For a class, if all members are private, there's no need
758 for a "private:" label; similarly, for a struct or union
759 masquerading as a class, if all members are public, there's
760 no need for a "public:" label. */
761
762 if (TYPE_DECLARED_CLASS (type))
763 {
764 QUIT;
765 len = TYPE_NFIELDS (type);
766 for (i = TYPE_N_BASECLASSES (type); i < len; i++)
767 if (!TYPE_FIELD_PRIVATE (type, i))
768 {
769 need_access_label = 1;
770 break;
771 }
772 QUIT;
773 if (!need_access_label)
774 {
775 len2 = TYPE_NFN_FIELDS (type);
776 for (j = 0; j < len2; j++)
777 {
778 len = TYPE_FN_FIELDLIST_LENGTH (type, j);
779 for (i = 0; i < len; i++)
780 if (!TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type, j), i))
781 {
782 need_access_label = 1;
783 break;
784 }
785 if (need_access_label)
786 break;
787 }
788 }
789 }
790 else
791 {
792 QUIT;
793 len = TYPE_NFIELDS (type);
794 for (i = TYPE_N_BASECLASSES (type); i < len; i++)
795 if (TYPE_FIELD_PRIVATE (type, i) || TYPE_FIELD_PROTECTED (type, i))
796 {
797 need_access_label = 1;
798 break;
799 }
800 QUIT;
801 if (!need_access_label)
802 {
803 len2 = TYPE_NFN_FIELDS (type);
804 for (j = 0; j < len2; j++)
805 {
806 QUIT;
807 len = TYPE_FN_FIELDLIST_LENGTH (type, j);
808 for (i = 0; i < len; i++)
809 if (TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type, j), i)
810 || TYPE_FN_FIELD_PROTECTED (TYPE_FN_FIELDLIST1 (type, j), i))
811 {
812 need_access_label = 1;
813 break;
814 }
815 if (need_access_label)
816 break;
817 }
818 }
819 }
820
821 /* If there is a base class for this type,
822 do not print the field that it occupies. */
823
824 len = TYPE_NFIELDS (type);
825 vptr_fieldno = get_vptr_fieldno (type, &basetype);
826 for (i = TYPE_N_BASECLASSES (type); i < len; i++)
827 {
828 QUIT;
829
830 /* If we have a virtual table pointer, omit it. Even if
831 virtual table pointers are not specifically marked in
832 the debug info, they should be artificial. */
833 if ((i == vptr_fieldno && type == basetype)
834 || TYPE_FIELD_ARTIFICIAL (type, i))
835 continue;
836
837 if (need_access_label)
838 {
839 if (TYPE_FIELD_PROTECTED (type, i))
840 {
841 if (section_type != s_protected)
842 {
843 section_type = s_protected;
844 fprintfi_filtered (level + 2, stream,
845 "protected:\n");
846 }
847 }
848 else if (TYPE_FIELD_PRIVATE (type, i))
849 {
850 if (section_type != s_private)
851 {
852 section_type = s_private;
853 fprintfi_filtered (level + 2, stream, "private:\n");
854 }
855 }
856 else
857 {
858 if (section_type != s_public)
859 {
860 section_type = s_public;
861 fprintfi_filtered (level + 2, stream, "public:\n");
862 }
863 }
864 }
865
866 print_spaces_filtered (level + 4, stream);
867 if (field_is_static (&TYPE_FIELD (type, i)))
868 fprintf_filtered (stream, "static ");
869 c_print_type (TYPE_FIELD_TYPE (type, i),
870 TYPE_FIELD_NAME (type, i),
871 stream, show - 1, level + 4);
872 if (!field_is_static (&TYPE_FIELD (type, i))
873 && TYPE_FIELD_PACKED (type, i))
874 {
875 /* It is a bitfield. This code does not attempt
876 to look at the bitpos and reconstruct filler,
877 unnamed fields. This would lead to misleading
878 results if the compiler does not put out fields
879 for such things (I don't know what it does). */
880 fprintf_filtered (stream, " : %d",
881 TYPE_FIELD_BITSIZE (type, i));
882 }
883 fprintf_filtered (stream, ";\n");
884 }
885
886 /* If there are both fields and methods, put a blank line
887 between them. Make sure to count only method that we will
888 display; artificial methods will be hidden. */
889 len = TYPE_NFN_FIELDS (type);
890 real_len = 0;
891 for (i = 0; i < len; i++)
892 {
893 struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
894 int len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
895 int j;
896 for (j = 0; j < len2; j++)
897 if (!TYPE_FN_FIELD_ARTIFICIAL (f, j))
898 real_len++;
899 }
900 if (real_len > 0 && section_type != s_none)
901 fprintf_filtered (stream, "\n");
902
903 /* C++: print out the methods */
904 for (i = 0; i < len; i++)
905 {
906 struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
907 int j, len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
908 char *method_name = TYPE_FN_FIELDLIST_NAME (type, i);
909 char *name = type_name_no_tag (type);
910 int is_constructor = name && strcmp (method_name, name) == 0;
911 for (j = 0; j < len2; j++)
912 {
913 char *physname = TYPE_FN_FIELD_PHYSNAME (f, j);
914 int is_full_physname_constructor =
915 is_constructor_name (physname)
916 || is_destructor_name (physname)
917 || method_name[0] == '~';
918
919 /* Do not print out artificial methods. */
920 if (TYPE_FN_FIELD_ARTIFICIAL (f, j))
921 continue;
922
923 QUIT;
924 if (TYPE_FN_FIELD_PROTECTED (f, j))
925 {
926 if (section_type != s_protected)
927 {
928 section_type = s_protected;
929 fprintfi_filtered (level + 2, stream,
930 "protected:\n");
931 }
932 }
933 else if (TYPE_FN_FIELD_PRIVATE (f, j))
934 {
935 if (section_type != s_private)
936 {
937 section_type = s_private;
938 fprintfi_filtered (level + 2, stream, "private:\n");
939 }
940 }
941 else
942 {
943 if (section_type != s_public)
944 {
945 section_type = s_public;
946 fprintfi_filtered (level + 2, stream, "public:\n");
947 }
948 }
949
950 print_spaces_filtered (level + 4, stream);
951 if (TYPE_FN_FIELD_VIRTUAL_P (f, j))
952 fprintf_filtered (stream, "virtual ");
953 else if (TYPE_FN_FIELD_STATIC_P (f, j))
954 fprintf_filtered (stream, "static ");
955 if (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)) == 0)
956 {
957 /* Keep GDB from crashing here. */
958 fprintf_filtered (stream, _("<undefined type> %s;\n"),
959 TYPE_FN_FIELD_PHYSNAME (f, j));
960 break;
961 }
962 else if (!is_constructor /* constructors don't have declared types */
963 && !is_full_physname_constructor /* " " */
964 && !is_type_conversion_operator (type, i, j))
965 {
966 type_print (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)),
967 "", stream, -1);
968 fputs_filtered (" ", stream);
969 }
970 if (TYPE_FN_FIELD_STUB (f, j))
971 /* Build something we can demangle. */
972 mangled_name = gdb_mangle_name (type, i, j);
973 else
974 mangled_name = TYPE_FN_FIELD_PHYSNAME (f, j);
975
976 demangled_name =
977 cplus_demangle (mangled_name,
978 DMGL_ANSI | DMGL_PARAMS);
979 if (demangled_name == NULL)
980 {
981 /* in some cases (for instance with the HP demangling),
982 if a function has more than 10 arguments,
983 the demangling will fail.
984 Let's try to reconstruct the function signature from
985 the symbol information */
986 if (!TYPE_FN_FIELD_STUB (f, j))
987 {
988 int staticp = TYPE_FN_FIELD_STATIC_P (f, j);
989 struct type *mtype = TYPE_FN_FIELD_TYPE (f, j);
990 cp_type_print_method_args (mtype,
991 "",
992 method_name,
993 staticp,
994 stream);
995 }
996 else
997 fprintf_filtered (stream, _("<badly mangled name '%s'>"),
998 mangled_name);
999 }
1000 else
1001 {
1002 char *p;
1003 char *demangled_no_class
1004 = remove_qualifiers (demangled_name);
1005
1006 /* get rid of the `static' appended by the demangler */
1007 p = strstr (demangled_no_class, " static");
1008 if (p != NULL)
1009 {
1010 int length = p - demangled_no_class;
1011 demangled_no_static = (char *) xmalloc (length + 1);
1012 strncpy (demangled_no_static, demangled_no_class, length);
1013 *(demangled_no_static + length) = '\0';
1014 fputs_filtered (demangled_no_static, stream);
1015 xfree (demangled_no_static);
1016 }
1017 else
1018 fputs_filtered (demangled_no_class, stream);
1019 xfree (demangled_name);
1020 }
1021
1022 if (TYPE_FN_FIELD_STUB (f, j))
1023 xfree (mangled_name);
1024
1025 fprintf_filtered (stream, ";\n");
1026 }
1027 }
1028
1029 fprintfi_filtered (level, stream, "}");
1030
1031 if (TYPE_LOCALTYPE_PTR (type) && show >= 0)
1032 fprintfi_filtered (level, stream, _(" (Local at %s:%d)\n"),
1033 TYPE_LOCALTYPE_FILE (type),
1034 TYPE_LOCALTYPE_LINE (type));
1035 }
1036 break;
1037
1038 case TYPE_CODE_ENUM:
1039 c_type_print_modifier (type, stream, 0, 1);
1040 fprintf_filtered (stream, "enum ");
1041 /* Print the tag name if it exists.
1042 The aCC compiler emits a spurious
1043 "{unnamed struct}"/"{unnamed union}"/"{unnamed enum}"
1044 tag for unnamed struct/union/enum's, which we don't
1045 want to print. */
1046 if (TYPE_TAG_NAME (type) != NULL
1047 && strncmp (TYPE_TAG_NAME (type), "{unnamed", 8))
1048 {
1049 fputs_filtered (TYPE_TAG_NAME (type), stream);
1050 if (show > 0)
1051 fputs_filtered (" ", stream);
1052 }
1053
1054 wrap_here (" ");
1055 if (show < 0)
1056 {
1057 /* If we just printed a tag name, no need to print anything else. */
1058 if (TYPE_TAG_NAME (type) == NULL)
1059 fprintf_filtered (stream, "{...}");
1060 }
1061 else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
1062 {
1063 fprintf_filtered (stream, "{");
1064 len = TYPE_NFIELDS (type);
1065 lastval = 0;
1066 for (i = 0; i < len; i++)
1067 {
1068 QUIT;
1069 if (i)
1070 fprintf_filtered (stream, ", ");
1071 wrap_here (" ");
1072 fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
1073 if (lastval != TYPE_FIELD_BITPOS (type, i))
1074 {
1075 fprintf_filtered (stream, " = %d", TYPE_FIELD_BITPOS (type, i));
1076 lastval = TYPE_FIELD_BITPOS (type, i);
1077 }
1078 lastval++;
1079 }
1080 fprintf_filtered (stream, "}");
1081 }
1082 break;
1083
1084 case TYPE_CODE_VOID:
1085 fprintf_filtered (stream, "void");
1086 break;
1087
1088 case TYPE_CODE_UNDEF:
1089 fprintf_filtered (stream, _("struct <unknown>"));
1090 break;
1091
1092 case TYPE_CODE_ERROR:
1093 fprintf_filtered (stream, _("<unknown type>"));
1094 break;
1095
1096 case TYPE_CODE_RANGE:
1097 /* This should not occur */
1098 fprintf_filtered (stream, _("<range type>"));
1099 break;
1100
1101 case TYPE_CODE_NAMESPACE:
1102 fputs_filtered ("namespace ", stream);
1103 fputs_filtered (TYPE_TAG_NAME (type), stream);
1104 break;
1105
1106 default:
1107 /* Handle types not explicitly handled by the other cases,
1108 such as fundamental types. For these, just print whatever
1109 the type name is, as recorded in the type itself. If there
1110 is no type name, then complain. */
1111 if (TYPE_NAME (type) != NULL)
1112 {
1113 c_type_print_modifier (type, stream, 0, 1);
1114 fputs_filtered (TYPE_NAME (type), stream);
1115 }
1116 else
1117 {
1118 /* At least for dump_symtab, it is important that this not be
1119 an error (). */
1120 fprintf_filtered (stream, _("<invalid type code %d>"),
1121 TYPE_CODE (type));
1122 }
1123 break;
1124 }
1125 }
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