2010-10-08 Bernd Schmidt <bernds@codesourcery.com>
[deliverable/binutils-gdb.git] / gdb / ada-typeprint.c
CommitLineData
14f9c5c9 1/* Support for printing Ada types for GDB, the GNU debugger.
6aba47ca 2 Copyright (C) 1986, 1988, 1989, 1991, 1997, 1998, 1999, 2000, 2001, 2002,
4c38e0a4 3 2003, 2004, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
14f9c5c9 4
a9762ec7 5 This file is part of GDB.
14f9c5c9 6
a9762ec7
JB
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
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
14f9c5c9 11
a9762ec7
JB
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.
14f9c5c9 16
a9762ec7
JB
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
14f9c5c9
AS
19
20#include "defs.h"
04ea0df1 21#include "gdb_obstack.h"
14f9c5c9
AS
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 "target.h"
29#include "command.h"
30#include "gdbcmd.h"
31#include "language.h"
32#include "demangle.h"
33#include "c-lang.h"
34#include "typeprint.h"
35#include "ada-lang.h"
36
37#include <ctype.h>
0c30c098 38#include "gdb_string.h"
14f9c5c9
AS
39#include <errno.h>
40
83e3a93c
PH
41static int print_selected_record_field_types (struct type *, struct type *,
42 int, int,
43 struct ui_file *, int, int);
44
d2e4a39e 45static int print_record_field_types (struct type *, struct type *,
14f9c5c9
AS
46 struct ui_file *, int, int);
47
d2e4a39e 48static void print_array_type (struct type *, struct ui_file *, int, int);
14f9c5c9 49
83e3a93c
PH
50static int print_choices (struct type *, int, struct ui_file *,
51 struct type *);
14f9c5c9 52
d2e4a39e 53static void print_range (struct type *, struct ui_file *);
14f9c5c9 54
d2e4a39e
AS
55static void print_range_bound (struct type *, char *, int *,
56 struct ui_file *);
14f9c5c9 57
d2e4a39e
AS
58static void
59print_dynamic_range_bound (struct type *, const char *, int,
60 const char *, struct ui_file *);
14f9c5c9 61
28c85d6c 62static void print_range_type (struct type *, struct ui_file *);
14f9c5c9
AS
63\f
64
d2e4a39e
AS
65
66static char *name_buffer;
14f9c5c9
AS
67static int name_buffer_len;
68
4c4b4cd2
PH
69/* The (decoded) Ada name of TYPE. This value persists until the
70 next call. */
14f9c5c9 71
d2e4a39e 72static char *
4c4b4cd2 73decoded_type_name (struct type *type)
14f9c5c9
AS
74{
75 if (ada_type_name (type) == NULL)
76 return NULL;
d2e4a39e 77 else
14f9c5c9 78 {
d2e4a39e
AS
79 char *raw_name = ada_type_name (type);
80 char *s, *q;
14f9c5c9
AS
81
82 if (name_buffer == NULL || name_buffer_len <= strlen (raw_name))
83 {
84 name_buffer_len = 16 + 2 * strlen (raw_name);
85 name_buffer = xrealloc (name_buffer, name_buffer_len);
86 }
87 strcpy (name_buffer, raw_name);
88
d2e4a39e 89 s = (char *) strstr (name_buffer, "___");
14f9c5c9
AS
90 if (s != NULL)
91 *s = '\0';
92
93 s = name_buffer + strlen (name_buffer) - 1;
94 while (s > name_buffer && (s[0] != '_' || s[-1] != '_'))
95 s -= 1;
96
97 if (s == name_buffer)
98 return name_buffer;
99
d2e4a39e 100 if (!islower (s[1]))
14f9c5c9
AS
101 return NULL;
102
103 for (s = q = name_buffer; *s != '\0'; q += 1)
104 {
105 if (s[0] == '_' && s[1] == '_')
106 {
d2e4a39e
AS
107 *q = '.';
108 s += 2;
14f9c5c9
AS
109 }
110 else
111 {
d2e4a39e
AS
112 *q = *s;
113 s += 1;
14f9c5c9
AS
114 }
115 }
116 *q = '\0';
117 return name_buffer;
118 }
119}
120
43bbcdc2 121/* Print TYPE on STREAM, preferably as a range. */
14f9c5c9
AS
122
123static void
d2e4a39e 124print_range (struct type *type, struct ui_file *stream)
14f9c5c9 125{
43bbcdc2 126 switch (TYPE_CODE (type))
14f9c5c9
AS
127 {
128 case TYPE_CODE_RANGE:
14f9c5c9 129 case TYPE_CODE_ENUM:
43bbcdc2
PH
130 {
131 struct type *target_type;
132 target_type = TYPE_TARGET_TYPE (type);
133 if (target_type == NULL)
134 target_type = type;
135 ada_print_scalar (target_type, ada_discrete_type_low_bound (type),
136 stream);
137 fprintf_filtered (stream, " .. ");
138 ada_print_scalar (target_type, ada_discrete_type_high_bound (type),
139 stream);
140 }
14f9c5c9
AS
141 break;
142 default:
14f9c5c9 143 fprintf_filtered (stream, "%.*s",
d2e4a39e
AS
144 ada_name_prefix_len (TYPE_NAME (type)),
145 TYPE_NAME (type));
43bbcdc2 146 break;
14f9c5c9
AS
147 }
148}
149
150/* Print the number or discriminant bound at BOUNDS+*N on STREAM, and
4c4b4cd2 151 set *N past the bound and its delimiter, if any. */
14f9c5c9
AS
152
153static void
d2e4a39e
AS
154print_range_bound (struct type *type, char *bounds, int *n,
155 struct ui_file *stream)
14f9c5c9
AS
156{
157 LONGEST B;
5b4ee69b 158
14f9c5c9
AS
159 if (ada_scan_number (bounds, *n, &B, n))
160 {
4c4b4cd2
PH
161 /* STABS decodes all range types which bounds are 0 .. -1 as
162 unsigned integers (ie. the type code is TYPE_CODE_INT, not
163 TYPE_CODE_RANGE). Unfortunately, ada_print_scalar() relies
164 on the unsigned flag to determine whether the bound should
165 be printed as a signed or an unsigned value. This causes
166 the upper bound of the 0 .. -1 range types to be printed as
167 a very large unsigned number instead of -1.
7c964f07
UW
168 To workaround this stabs deficiency, we replace the TYPE by NULL
169 to indicate default output when we detect that the bound is negative,
4c4b4cd2
PH
170 and the type is a TYPE_CODE_INT. The bound is negative when
171 'm' is the last character of the number scanned in BOUNDS. */
172 if (bounds[*n - 1] == 'm' && TYPE_CODE (type) == TYPE_CODE_INT)
7c964f07 173 type = NULL;
14f9c5c9
AS
174 ada_print_scalar (type, B, stream);
175 if (bounds[*n] == '_')
176 *n += 2;
177 }
178 else
179 {
180 int bound_len;
d2e4a39e
AS
181 char *bound = bounds + *n;
182 char *pend;
14f9c5c9
AS
183
184 pend = strstr (bound, "__");
185 if (pend == NULL)
186 *n += bound_len = strlen (bound);
d2e4a39e 187 else
14f9c5c9
AS
188 {
189 bound_len = pend - bound;
190 *n += bound_len + 2;
191 }
192 fprintf_filtered (stream, "%.*s", bound_len, bound);
193 }
194}
195
196/* Assuming NAME[0 .. NAME_LEN-1] is the name of a range type, print
197 the value (if found) of the bound indicated by SUFFIX ("___L" or
4c4b4cd2 198 "___U") according to the ___XD conventions. */
14f9c5c9
AS
199
200static void
d2e4a39e
AS
201print_dynamic_range_bound (struct type *type, const char *name, int name_len,
202 const char *suffix, struct ui_file *stream)
14f9c5c9
AS
203{
204 static char *name_buf = NULL;
205 static size_t name_buf_len = 0;
206 LONGEST B;
207 int OK;
208
209 GROW_VECT (name_buf, name_buf_len, name_len + strlen (suffix) + 1);
210 strncpy (name_buf, name, name_len);
211 strcpy (name_buf + name_len, suffix);
212
4c4b4cd2 213 B = get_int_var_value (name_buf, &OK);
14f9c5c9
AS
214 if (OK)
215 ada_print_scalar (type, B, stream);
216 else
217 fprintf_filtered (stream, "?");
218}
219
28c85d6c
JB
220/* Print RAW_TYPE as a range type, using any bound information
221 following the GNAT encoding (if available). */
14f9c5c9
AS
222
223static void
28c85d6c 224print_range_type (struct type *raw_type, struct ui_file *stream)
14f9c5c9 225{
28c85d6c 226 char *name;
14f9c5c9 227 struct type *base_type;
d2e4a39e 228 char *subtype_info;
14f9c5c9 229
28c85d6c
JB
230 gdb_assert (raw_type != NULL);
231 name = TYPE_NAME (raw_type);
232 gdb_assert (name != NULL);
1ce677a4
UW
233
234 if (TYPE_CODE (raw_type) == TYPE_CODE_RANGE)
14f9c5c9
AS
235 base_type = TYPE_TARGET_TYPE (raw_type);
236 else
237 base_type = raw_type;
238
239 subtype_info = strstr (name, "___XD");
1ce677a4 240 if (subtype_info == NULL)
14f9c5c9
AS
241 print_range (raw_type, stream);
242 else
243 {
244 int prefix_len = subtype_info - name;
245 char *bounds_str;
246 int n;
247
248 subtype_info += 5;
249 bounds_str = strchr (subtype_info, '_');
250 n = 1;
251
d2e4a39e 252 if (*subtype_info == 'L')
14f9c5c9 253 {
4c4b4cd2 254 print_range_bound (base_type, bounds_str, &n, stream);
14f9c5c9
AS
255 subtype_info += 1;
256 }
257 else
4c4b4cd2 258 print_dynamic_range_bound (base_type, name, prefix_len, "___L",
d2e4a39e 259 stream);
14f9c5c9
AS
260
261 fprintf_filtered (stream, " .. ");
262
d2e4a39e 263 if (*subtype_info == 'U')
4c4b4cd2 264 print_range_bound (base_type, bounds_str, &n, stream);
14f9c5c9 265 else
4c4b4cd2 266 print_dynamic_range_bound (base_type, name, prefix_len, "___U",
d2e4a39e 267 stream);
14f9c5c9 268 }
d2e4a39e 269}
14f9c5c9 270
4c4b4cd2 271/* Print enumerated type TYPE on STREAM. */
14f9c5c9
AS
272
273static void
ebf56fd3 274print_enum_type (struct type *type, struct ui_file *stream)
14f9c5c9
AS
275{
276 int len = TYPE_NFIELDS (type);
277 int i, lastval;
278
279 fprintf_filtered (stream, "(");
280 wrap_here (" ");
281
282 lastval = 0;
283 for (i = 0; i < len; i++)
284 {
285 QUIT;
d2e4a39e
AS
286 if (i)
287 fprintf_filtered (stream, ", ");
14f9c5c9
AS
288 wrap_here (" ");
289 fputs_filtered (ada_enum_name (TYPE_FIELD_NAME (type, i)), stream);
290 if (lastval != TYPE_FIELD_BITPOS (type, i))
291 {
292 fprintf_filtered (stream, " => %d", TYPE_FIELD_BITPOS (type, i));
293 lastval = TYPE_FIELD_BITPOS (type, i);
294 }
295 lastval += 1;
296 }
297 fprintf_filtered (stream, ")");
298}
299
4c4b4cd2 300/* Print representation of Ada fixed-point type TYPE on STREAM. */
14f9c5c9
AS
301
302static void
ebf56fd3 303print_fixed_point_type (struct type *type, struct ui_file *stream)
14f9c5c9
AS
304{
305 DOUBLEST delta = ada_delta (type);
306 DOUBLEST small = ada_fixed_to_float (type, 1.0);
307
308 if (delta < 0.0)
309 fprintf_filtered (stream, "delta ??");
310 else
311 {
312 fprintf_filtered (stream, "delta %g", (double) delta);
d2e4a39e 313 if (delta != small)
14f9c5c9
AS
314 fprintf_filtered (stream, " <'small = %g>", (double) small);
315 }
316}
317
4c4b4cd2
PH
318/* Print simple (constrained) array type TYPE on STREAM. LEVEL is the
319 recursion (indentation) level, in case the element type itself has
14f9c5c9 320 nested structure, and SHOW is the number of levels of internal
4c4b4cd2 321 structure to show (see ada_print_type). */
14f9c5c9
AS
322
323static void
d2e4a39e
AS
324print_array_type (struct type *type, struct ui_file *stream, int show,
325 int level)
14f9c5c9
AS
326{
327 int bitsize;
328 int n_indices;
329
ad82864c 330 if (ada_is_constrained_packed_array_type (type))
727e3d2e
JB
331 type = ada_coerce_to_simple_array_type (type);
332
14f9c5c9
AS
333 bitsize = 0;
334 fprintf_filtered (stream, "array (");
335
cb249c71
TT
336 if (type == NULL)
337 {
338 fprintf_filtered (stream, _("<undecipherable array type>"));
339 return;
340 }
341
14f9c5c9 342 n_indices = -1;
d2e4a39e 343 if (show < 0)
14f9c5c9
AS
344 fprintf_filtered (stream, "...");
345 else
346 {
4c4b4cd2 347 if (ada_is_simple_array_type (type))
14f9c5c9 348 {
28c85d6c 349 struct type *range_desc_type;
d2e4a39e 350 struct type *arr_type;
14f9c5c9 351
28c85d6c
JB
352 range_desc_type = ada_find_parallel_type (type, "___XA");
353 ada_fixup_array_indexes_type (range_desc_type);
354
14f9c5c9
AS
355 bitsize = 0;
356 if (range_desc_type == NULL)
357 {
358 for (arr_type = type; TYPE_CODE (arr_type) == TYPE_CODE_ARRAY;
359 arr_type = TYPE_TARGET_TYPE (arr_type))
360 {
361 if (arr_type != type)
362 fprintf_filtered (stream, ", ");
363 print_range (TYPE_INDEX_TYPE (arr_type), stream);
364 if (TYPE_FIELD_BITSIZE (arr_type, 0) > 0)
365 bitsize = TYPE_FIELD_BITSIZE (arr_type, 0);
366 }
367 }
d2e4a39e 368 else
14f9c5c9
AS
369 {
370 int k;
5b4ee69b 371
d2e4a39e
AS
372 n_indices = TYPE_NFIELDS (range_desc_type);
373 for (k = 0, arr_type = type;
14f9c5c9
AS
374 k < n_indices;
375 k += 1, arr_type = TYPE_TARGET_TYPE (arr_type))
376 {
377 if (k > 0)
378 fprintf_filtered (stream, ", ");
28c85d6c
JB
379 print_range_type (TYPE_FIELD_TYPE (range_desc_type, k),
380 stream);
14f9c5c9
AS
381 if (TYPE_FIELD_BITSIZE (arr_type, 0) > 0)
382 bitsize = TYPE_FIELD_BITSIZE (arr_type, 0);
d2e4a39e 383 }
14f9c5c9
AS
384 }
385 }
d2e4a39e 386 else
14f9c5c9
AS
387 {
388 int i, i0;
5b4ee69b 389
14f9c5c9
AS
390 for (i = i0 = ada_array_arity (type); i > 0; i -= 1)
391 fprintf_filtered (stream, "%s<>", i == i0 ? "" : ", ");
392 }
393 }
394
395 fprintf_filtered (stream, ") of ");
396 wrap_here ("");
d2e4a39e
AS
397 ada_print_type (ada_array_element_type (type, n_indices), "", stream,
398 show == 0 ? 0 : show - 1, level + 1);
14f9c5c9
AS
399 if (bitsize > 0)
400 fprintf_filtered (stream, " <packed: %d-bit elements>", bitsize);
401}
402
403/* Print the choices encoded by field FIELD_NUM of variant-part TYPE on
83e3a93c
PH
404 STREAM, assuming that VAL_TYPE (if non-NULL) is the type of the
405 values. Returns non-zero if the field is an encoding of
406 discriminant values, as in a standard variant record, and 0 if the
407 field is not so encoded (as happens with single-component variants
408 in types annotated with pragma Unchecked_Variant.)
409 */
14f9c5c9 410
83e3a93c 411static int
d2e4a39e
AS
412print_choices (struct type *type, int field_num, struct ui_file *stream,
413 struct type *val_type)
14f9c5c9
AS
414{
415 int have_output;
416 int p;
d2e4a39e 417 const char *name = TYPE_FIELD_NAME (type, field_num);
14f9c5c9
AS
418
419 have_output = 0;
420
4c4b4cd2 421 /* Skip over leading 'V': NOTE soon to be obsolete. */
14f9c5c9
AS
422 if (name[0] == 'V')
423 {
d2e4a39e 424 if (!ada_scan_number (name, 1, NULL, &p))
14f9c5c9
AS
425 goto Huh;
426 }
427 else
428 p = 0;
429
430 while (1)
431 {
d2e4a39e 432 switch (name[p])
14f9c5c9
AS
433 {
434 default:
83e3a93c
PH
435 goto Huh;
436 case '_':
437 case '\0':
438 fprintf_filtered (stream, " =>");
439 return 1;
14f9c5c9
AS
440 case 'S':
441 case 'R':
442 case 'O':
d2e4a39e 443 if (have_output)
14f9c5c9
AS
444 fprintf_filtered (stream, " | ");
445 have_output = 1;
446 break;
447 }
448
d2e4a39e 449 switch (name[p])
14f9c5c9
AS
450 {
451 case 'S':
452 {
453 LONGEST W;
5b4ee69b 454
d2e4a39e 455 if (!ada_scan_number (name, p + 1, &W, &p))
14f9c5c9
AS
456 goto Huh;
457 ada_print_scalar (val_type, W, stream);
458 break;
459 }
460 case 'R':
461 {
462 LONGEST L, U;
5b4ee69b 463
d2e4a39e
AS
464 if (!ada_scan_number (name, p + 1, &L, &p)
465 || name[p] != 'T' || !ada_scan_number (name, p + 1, &U, &p))
14f9c5c9
AS
466 goto Huh;
467 ada_print_scalar (val_type, L, stream);
468 fprintf_filtered (stream, " .. ");
469 ada_print_scalar (val_type, U, stream);
470 break;
471 }
472 case 'O':
473 fprintf_filtered (stream, "others");
474 p += 1;
475 break;
476 }
477 }
478
479Huh:
83e3a93c
PH
480 fprintf_filtered (stream, "?? =>");
481 return 0;
14f9c5c9
AS
482}
483
83e3a93c
PH
484/* Assuming that field FIELD_NUM of TYPE represents variants whose
485 discriminant is contained in OUTER_TYPE, print its components on STREAM.
486 LEVEL is the recursion (indentation) level, in case any of the fields
487 themselves have nested structure, and SHOW is the number of levels of
488 internal structure to show (see ada_print_type). For this purpose,
489 fields nested in a variant part are taken to be at the same level as
490 the fields immediately outside the variant part. */
14f9c5c9
AS
491
492static void
ebf56fd3
AS
493print_variant_clauses (struct type *type, int field_num,
494 struct type *outer_type, struct ui_file *stream,
495 int show, int level)
14f9c5c9
AS
496{
497 int i;
4c4b4cd2 498 struct type *var_type, *par_type;
14f9c5c9
AS
499 struct type *discr_type;
500
501 var_type = TYPE_FIELD_TYPE (type, field_num);
502 discr_type = ada_variant_discrim_type (var_type, outer_type);
503
504 if (TYPE_CODE (var_type) == TYPE_CODE_PTR)
505 {
506 var_type = TYPE_TARGET_TYPE (var_type);
4c4b4cd2
PH
507 if (var_type == NULL || TYPE_CODE (var_type) != TYPE_CODE_UNION)
508 return;
14f9c5c9
AS
509 }
510
4c4b4cd2
PH
511 par_type = ada_find_parallel_type (var_type, "___XVU");
512 if (par_type != NULL)
513 var_type = par_type;
514
d2e4a39e 515 for (i = 0; i < TYPE_NFIELDS (var_type); i += 1)
14f9c5c9
AS
516 {
517 fprintf_filtered (stream, "\n%*swhen ", level + 4, "");
83e3a93c
PH
518 if (print_choices (var_type, i, stream, discr_type))
519 {
520 if (print_record_field_types (TYPE_FIELD_TYPE (var_type, i),
521 outer_type, stream, show, level + 4)
522 <= 0)
523 fprintf_filtered (stream, " null;");
524 }
525 else
526 print_selected_record_field_types (var_type, outer_type, i, i,
527 stream, show, level + 4);
14f9c5c9
AS
528 }
529}
530
4c4b4cd2 531/* Assuming that field FIELD_NUM of TYPE is a variant part whose
14f9c5c9 532 discriminants are contained in OUTER_TYPE, print a description of it
4c4b4cd2
PH
533 on STREAM. LEVEL is the recursion (indentation) level, in case any of
534 the fields themselves have nested structure, and SHOW is the number of
535 levels of internal structure to show (see ada_print_type). For this
536 purpose, fields nested in a variant part are taken to be at the same
537 level as the fields immediately outside the variant part. */
14f9c5c9
AS
538
539static void
ebf56fd3
AS
540print_variant_part (struct type *type, int field_num, struct type *outer_type,
541 struct ui_file *stream, int show, int level)
14f9c5c9
AS
542{
543 fprintf_filtered (stream, "\n%*scase %s is", level + 4, "",
d2e4a39e
AS
544 ada_variant_discrim_name
545 (TYPE_FIELD_TYPE (type, field_num)));
546 print_variant_clauses (type, field_num, outer_type, stream, show,
547 level + 4);
14f9c5c9
AS
548 fprintf_filtered (stream, "\n%*send case;", level + 4, "");
549}
550
83e3a93c
PH
551/* Print a description on STREAM of the fields FLD0 through FLD1 in
552 record or union type TYPE, whose discriminants are in OUTER_TYPE.
553 LEVEL is the recursion (indentation) level, in case any of the
554 fields themselves have nested structure, and SHOW is the number of
555 levels of internal structure to show (see ada_print_type). Does
556 not print parent type information of TYPE. Returns 0 if no fields
557 printed, -1 for an incomplete type, else > 0. Prints each field
558 beginning on a new line, but does not put a new line at end. */
14f9c5c9
AS
559
560static int
83e3a93c
PH
561print_selected_record_field_types (struct type *type, struct type *outer_type,
562 int fld0, int fld1,
563 struct ui_file *stream, int show, int level)
14f9c5c9 564{
83e3a93c 565 int i, flds;
14f9c5c9
AS
566
567 flds = 0;
14f9c5c9 568
83e3a93c 569 if (fld0 > fld1 && TYPE_STUB (type))
14f9c5c9
AS
570 return -1;
571
83e3a93c 572 for (i = fld0; i <= fld1; i += 1)
14f9c5c9
AS
573 {
574 QUIT;
575
d2e4a39e 576 if (ada_is_parent_field (type, i) || ada_is_ignored_field (type, i))
14f9c5c9
AS
577 ;
578 else if (ada_is_wrapper_field (type, i))
579 flds += print_record_field_types (TYPE_FIELD_TYPE (type, i), type,
580 stream, show, level);
d2e4a39e 581 else if (ada_is_variant_part (type, i))
14f9c5c9
AS
582 {
583 print_variant_part (type, i, outer_type, stream, show, level);
584 flds = 1;
585 }
586 else
587 {
588 flds += 1;
589 fprintf_filtered (stream, "\n%*s", level + 4, "");
590 ada_print_type (TYPE_FIELD_TYPE (type, i),
591 TYPE_FIELD_NAME (type, i),
592 stream, show - 1, level + 4);
593 fprintf_filtered (stream, ";");
594 }
595 }
596
597 return flds;
598}
599
83e3a93c
PH
600/* Print a description on STREAM of all fields of record or union type
601 TYPE, as for print_selected_record_field_types, above. */
602
603static int
604print_record_field_types (struct type *type, struct type *outer_type,
605 struct ui_file *stream, int show, int level)
606{
607 return print_selected_record_field_types (type, outer_type,
608 0, TYPE_NFIELDS (type) - 1,
609 stream, show, level);
610}
611
612
4c4b4cd2
PH
613/* Print record type TYPE on STREAM. LEVEL is the recursion (indentation)
614 level, in case the element type itself has nested structure, and SHOW is
615 the number of levels of internal structure to show (see ada_print_type). */
14f9c5c9
AS
616
617static void
d2e4a39e
AS
618print_record_type (struct type *type0, struct ui_file *stream, int show,
619 int level)
14f9c5c9 620{
d2e4a39e
AS
621 struct type *parent_type;
622 struct type *type;
623
4c4b4cd2
PH
624 type = ada_find_parallel_type (type0, "___XVE");
625 if (type == NULL)
626 type = type0;
14f9c5c9
AS
627
628 parent_type = ada_parent_type (type);
d2e4a39e 629 if (ada_type_name (parent_type) != NULL)
0b48a291 630 fprintf_filtered (stream, "new %s with record",
4c4b4cd2
PH
631 decoded_type_name (parent_type));
632 else if (parent_type == NULL && ada_is_tagged_type (type, 0))
0b48a291
PH
633 fprintf_filtered (stream, "tagged record");
634 else
635 fprintf_filtered (stream, "record");
14f9c5c9
AS
636
637 if (show < 0)
0b48a291 638 fprintf_filtered (stream, " ... end record");
14f9c5c9
AS
639 else
640 {
641 int flds;
642
643 flds = 0;
644 if (parent_type != NULL && ada_type_name (parent_type) == NULL)
d2e4a39e 645 flds += print_record_field_types (parent_type, parent_type,
14f9c5c9
AS
646 stream, show, level);
647 flds += print_record_field_types (type, type, stream, show, level);
d2e4a39e 648
14f9c5c9 649 if (flds > 0)
0b48a291 650 fprintf_filtered (stream, "\n%*send record", level, "");
d2e4a39e 651 else if (flds < 0)
323e0a4a 652 fprintf_filtered (stream, _(" <incomplete type> end record"));
d2e4a39e 653 else
0b48a291 654 fprintf_filtered (stream, " null; end record");
14f9c5c9
AS
655 }
656}
657
658/* Print the unchecked union type TYPE in something resembling Ada
4c4b4cd2 659 format on STREAM. LEVEL is the recursion (indentation) level
14f9c5c9 660 in case the element type itself has nested structure, and SHOW is the
4c4b4cd2 661 number of levels of internal structure to show (see ada_print_type). */
14f9c5c9 662static void
d2e4a39e 663print_unchecked_union_type (struct type *type, struct ui_file *stream,
14f9c5c9
AS
664 int show, int level)
665{
14f9c5c9 666 if (show < 0)
0b48a291 667 fprintf_filtered (stream, "record (?) is ... end record");
d2e4a39e 668 else if (TYPE_NFIELDS (type) == 0)
0b48a291 669 fprintf_filtered (stream, "record (?) is null; end record");
14f9c5c9
AS
670 else
671 {
672 int i;
673
0b48a291 674 fprintf_filtered (stream, "record (?) is\n%*scase ? is", level + 4, "");
14f9c5c9 675
d2e4a39e 676 for (i = 0; i < TYPE_NFIELDS (type); i += 1)
14f9c5c9 677 {
0b48a291 678 fprintf_filtered (stream, "\n%*swhen ? =>\n%*s", level + 8, "",
d2e4a39e 679 level + 12, "");
14f9c5c9
AS
680 ada_print_type (TYPE_FIELD_TYPE (type, i),
681 TYPE_FIELD_NAME (type, i),
682 stream, show - 1, level + 12);
683 fprintf_filtered (stream, ";");
684 }
685
0b48a291 686 fprintf_filtered (stream, "\n%*send case;\n%*send record",
d2e4a39e 687 level + 4, "", level, "");
14f9c5c9
AS
688 }
689}
d2e4a39e 690
14f9c5c9
AS
691
692
693/* Print function or procedure type TYPE on STREAM. Make it a header
4c4b4cd2 694 for function or procedure NAME if NAME is not null. */
14f9c5c9
AS
695
696static void
25b524e8 697print_func_type (struct type *type, struct ui_file *stream, const char *name)
14f9c5c9
AS
698{
699 int i, len = TYPE_NFIELDS (type);
700
701 if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_VOID)
702 fprintf_filtered (stream, "procedure");
703 else
704 fprintf_filtered (stream, "function");
705
d2e4a39e 706 if (name != NULL && name[0] != '\0')
14f9c5c9
AS
707 fprintf_filtered (stream, " %s", name);
708
d2e4a39e 709 if (len > 0)
14f9c5c9
AS
710 {
711 fprintf_filtered (stream, " (");
712 for (i = 0; i < len; i += 1)
713 {
714 if (i > 0)
715 {
716 fputs_filtered ("; ", stream);
717 wrap_here (" ");
718 }
d2e4a39e 719 fprintf_filtered (stream, "a%d: ", i + 1);
14f9c5c9
AS
720 ada_print_type (TYPE_FIELD_TYPE (type, i), "", stream, -1, 0);
721 }
722 fprintf_filtered (stream, ")");
d2e4a39e 723 }
14f9c5c9
AS
724
725 if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_VOID)
726 {
727 fprintf_filtered (stream, " return ");
728 ada_print_type (TYPE_TARGET_TYPE (type), "", stream, 0, 0);
729 }
730}
731
732
733/* Print a description of a type TYPE0.
734 Output goes to STREAM (via stdio).
735 If VARSTRING is a non-empty string, print as an Ada variable/field
736 declaration.
4c4b4cd2 737 SHOW+1 is the maximum number of levels of internal type structure
14f9c5c9
AS
738 to show (this applies to record types, enumerated types, and
739 array types).
740 SHOW is the number of levels of internal type structure to show
4c4b4cd2 741 when there is a type name for the SHOWth deepest level (0th is
14f9c5c9
AS
742 outer level).
743 When SHOW<0, no inner structure is shown.
4c4b4cd2 744 LEVEL indicates level of recursion (for nested definitions). */
14f9c5c9
AS
745
746void
25b524e8
JK
747ada_print_type (struct type *type0, const char *varstring,
748 struct ui_file *stream, int show, int level)
14f9c5c9 749{
61ee279c 750 struct type *type = ada_check_typedef (ada_get_base_type (type0));
f192137b 751 char *type_name = decoded_type_name (type0);
14f9c5c9
AS
752 int is_var_decl = (varstring != NULL && varstring[0] != '\0');
753
754 if (type == NULL)
755 {
756 if (is_var_decl)
757 fprintf_filtered (stream, "%.*s: ",
d2e4a39e 758 ada_name_prefix_len (varstring), varstring);
14f9c5c9
AS
759 fprintf_filtered (stream, "<null type?>");
760 return;
761 }
762
763 if (show > 0)
61ee279c 764 type = ada_check_typedef (type);
14f9c5c9
AS
765
766 if (is_var_decl && TYPE_CODE (type) != TYPE_CODE_FUNC)
d2e4a39e
AS
767 fprintf_filtered (stream, "%.*s: ",
768 ada_name_prefix_len (varstring), varstring);
14f9c5c9
AS
769
770 if (type_name != NULL && show <= 0)
771 {
d2e4a39e 772 fprintf_filtered (stream, "%.*s",
14f9c5c9
AS
773 ada_name_prefix_len (type_name), type_name);
774 return;
775 }
776
777 if (ada_is_aligner_type (type))
778 ada_print_type (ada_aligned_type (type), "", stream, show, level);
ad82864c 779 else if (ada_is_constrained_packed_array_type (type))
727e3d2e
JB
780 {
781 if (TYPE_CODE (type) == TYPE_CODE_PTR)
782 {
783 fprintf_filtered (stream, "access ");
784 print_array_type (TYPE_TARGET_TYPE (type), stream, show, level);
785 }
786 else
787 {
788 print_array_type (type, stream, show, level);
789 }
790 }
14f9c5c9 791 else
d2e4a39e
AS
792 switch (TYPE_CODE (type))
793 {
794 default:
795 fprintf_filtered (stream, "<");
796 c_print_type (type, "", stream, show, level);
797 fprintf_filtered (stream, ">");
798 break;
799 case TYPE_CODE_PTR:
800 fprintf_filtered (stream, "access ");
801 ada_print_type (TYPE_TARGET_TYPE (type), "", stream, show, level);
802 break;
803 case TYPE_CODE_REF:
804 fprintf_filtered (stream, "<ref> ");
805 ada_print_type (TYPE_TARGET_TYPE (type), "", stream, show, level);
806 break;
807 case TYPE_CODE_ARRAY:
14f9c5c9 808 print_array_type (type, stream, show, level);
d2e4a39e 809 break;
690cc4eb
PH
810 case TYPE_CODE_BOOL:
811 fprintf_filtered (stream, "(false, true)");
812 break;
d2e4a39e
AS
813 case TYPE_CODE_INT:
814 if (ada_is_fixed_point_type (type))
815 print_fixed_point_type (type, stream);
d2e4a39e
AS
816 else
817 {
818 char *name = ada_type_name (type);
5b4ee69b 819
d2e4a39e 820 if (!ada_is_range_type_name (name))
e1d5a0d2 821 fprintf_filtered (stream, _("<%d-byte integer>"),
d2e4a39e
AS
822 TYPE_LENGTH (type));
823 else
824 {
825 fprintf_filtered (stream, "range ");
28c85d6c 826 print_range_type (type, stream);
d2e4a39e
AS
827 }
828 }
829 break;
830 case TYPE_CODE_RANGE:
831 if (ada_is_fixed_point_type (type))
832 print_fixed_point_type (type, stream);
d2e4a39e 833 else if (ada_is_modular_type (type))
529cad9c
PH
834 fprintf_filtered (stream, "mod %s",
835 int_string (ada_modulus (type), 10, 0, 0, 1));
d2e4a39e
AS
836 else
837 {
838 fprintf_filtered (stream, "range ");
839 print_range (type, stream);
840 }
841 break;
842 case TYPE_CODE_FLT:
e1d5a0d2 843 fprintf_filtered (stream, _("<%d-byte float>"), TYPE_LENGTH (type));
d2e4a39e
AS
844 break;
845 case TYPE_CODE_ENUM:
846 if (show < 0)
847 fprintf_filtered (stream, "(...)");
848 else
849 print_enum_type (type, stream);
850 break;
851 case TYPE_CODE_STRUCT:
4c4b4cd2 852 if (ada_is_array_descriptor_type (type))
d2e4a39e
AS
853 print_array_type (type, stream, show, level);
854 else if (ada_is_bogus_array_descriptor (type))
855 fprintf_filtered (stream,
e1d5a0d2 856 _("array (?) of ? (<mal-formed descriptor>)"));
d2e4a39e
AS
857 else
858 print_record_type (type, stream, show, level);
859 break;
860 case TYPE_CODE_UNION:
861 print_unchecked_union_type (type, stream, show, level);
862 break;
863 case TYPE_CODE_FUNC:
864 print_func_type (type, stream, varstring);
865 break;
866 }
14f9c5c9 867}
be942545
JB
868
869/* Implement the la_print_typedef language method for Ada. */
870
871void
872ada_print_typedef (struct type *type, struct symbol *new_symbol,
873 struct ui_file *stream)
874{
875 type = ada_check_typedef (type);
876 ada_print_type (type, "", stream, 0, 0);
877 fprintf_filtered (stream, "\n");
878}
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