Commit | Line | Data |
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14f9c5c9 | 1 | /* Support for printing Ada types for GDB, the GNU debugger. |
b811d2c2 | 2 | Copyright (C) 1986-2020 Free Software Foundation, Inc. |
14f9c5c9 | 3 | |
a9762ec7 | 4 | This file is part of GDB. |
14f9c5c9 | 5 | |
a9762ec7 JB |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3 of the License, or | |
9 | (at your option) any later version. | |
14f9c5c9 | 10 | |
a9762ec7 JB |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
14f9c5c9 | 15 | |
a9762ec7 JB |
16 | You should have received a copy of the GNU General Public License |
17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
14f9c5c9 AS |
18 | |
19 | #include "defs.h" | |
4de283e4 | 20 | #include "bfd.h" /* Binary File Description */ |
4de283e4 | 21 | #include "gdbtypes.h" |
4de283e4 | 22 | #include "value.h" |
4de283e4 TT |
23 | #include "c-lang.h" |
24 | #include "cli/cli-style.h" | |
d55e5aa6 | 25 | #include "typeprint.h" |
4de283e4 TT |
26 | #include "target-float.h" |
27 | #include "ada-lang.h" | |
28 | #include <ctype.h> | |
14f9c5c9 | 29 | |
83e3a93c PH |
30 | static int print_selected_record_field_types (struct type *, struct type *, |
31 | int, int, | |
79d43c61 TT |
32 | struct ui_file *, int, int, |
33 | const struct type_print_options *); | |
aba02109 | 34 | |
d2e4a39e | 35 | static int print_record_field_types (struct type *, struct type *, |
79d43c61 TT |
36 | struct ui_file *, int, int, |
37 | const struct type_print_options *); | |
14f9c5c9 AS |
38 | \f |
39 | ||
d2e4a39e AS |
40 | |
41 | static char *name_buffer; | |
14f9c5c9 AS |
42 | static int name_buffer_len; |
43 | ||
4c4b4cd2 PH |
44 | /* The (decoded) Ada name of TYPE. This value persists until the |
45 | next call. */ | |
14f9c5c9 | 46 | |
d2e4a39e | 47 | static char * |
4c4b4cd2 | 48 | decoded_type_name (struct type *type) |
14f9c5c9 AS |
49 | { |
50 | if (ada_type_name (type) == NULL) | |
51 | return NULL; | |
d2e4a39e | 52 | else |
14f9c5c9 | 53 | { |
0d5cff50 | 54 | const char *raw_name = ada_type_name (type); |
d2e4a39e | 55 | char *s, *q; |
14f9c5c9 AS |
56 | |
57 | if (name_buffer == NULL || name_buffer_len <= strlen (raw_name)) | |
58 | { | |
59 | name_buffer_len = 16 + 2 * strlen (raw_name); | |
224c3ddb | 60 | name_buffer = (char *) xrealloc (name_buffer, name_buffer_len); |
14f9c5c9 AS |
61 | } |
62 | strcpy (name_buffer, raw_name); | |
63 | ||
d2e4a39e | 64 | s = (char *) strstr (name_buffer, "___"); |
14f9c5c9 AS |
65 | if (s != NULL) |
66 | *s = '\0'; | |
67 | ||
68 | s = name_buffer + strlen (name_buffer) - 1; | |
69 | while (s > name_buffer && (s[0] != '_' || s[-1] != '_')) | |
70 | s -= 1; | |
71 | ||
72 | if (s == name_buffer) | |
73 | return name_buffer; | |
74 | ||
d2e4a39e | 75 | if (!islower (s[1])) |
14f9c5c9 AS |
76 | return NULL; |
77 | ||
78 | for (s = q = name_buffer; *s != '\0'; q += 1) | |
79 | { | |
80 | if (s[0] == '_' && s[1] == '_') | |
81 | { | |
d2e4a39e AS |
82 | *q = '.'; |
83 | s += 2; | |
14f9c5c9 AS |
84 | } |
85 | else | |
86 | { | |
d2e4a39e AS |
87 | *q = *s; |
88 | s += 1; | |
14f9c5c9 AS |
89 | } |
90 | } | |
91 | *q = '\0'; | |
92 | return name_buffer; | |
93 | } | |
94 | } | |
95 | ||
fb151210 JB |
96 | /* Return nonzero if TYPE is a subrange type, and its bounds |
97 | are identical to the bounds of its subtype. */ | |
98 | ||
99 | static int | |
100 | type_is_full_subrange_of_target_type (struct type *type) | |
101 | { | |
102 | struct type *subtype; | |
103 | ||
104 | if (TYPE_CODE (type) != TYPE_CODE_RANGE) | |
105 | return 0; | |
106 | ||
107 | subtype = TYPE_TARGET_TYPE (type); | |
108 | if (subtype == NULL) | |
109 | return 0; | |
110 | ||
950c97d8 JB |
111 | if (is_dynamic_type (type)) |
112 | return 0; | |
113 | ||
fb151210 JB |
114 | if (ada_discrete_type_low_bound (type) |
115 | != ada_discrete_type_low_bound (subtype)) | |
116 | return 0; | |
117 | ||
118 | if (ada_discrete_type_high_bound (type) | |
119 | != ada_discrete_type_high_bound (subtype)) | |
120 | return 0; | |
121 | ||
122 | return 1; | |
123 | } | |
124 | ||
125 | /* Print TYPE on STREAM, preferably as a range if BOUNDS_PREFERED_P | |
126 | is nonzero. */ | |
14f9c5c9 AS |
127 | |
128 | static void | |
fb151210 JB |
129 | print_range (struct type *type, struct ui_file *stream, |
130 | int bounds_prefered_p) | |
14f9c5c9 | 131 | { |
fb151210 JB |
132 | if (!bounds_prefered_p) |
133 | { | |
134 | /* Try stripping all TYPE_CODE_RANGE layers whose bounds | |
135 | are identical to the bounds of their subtype. When | |
136 | the bounds of both types match, it can allow us to | |
137 | print a range using the name of its base type, which | |
138 | is easier to read. For instance, we would print... | |
139 | ||
140 | array (character) of ... | |
141 | ||
142 | ... instead of... | |
143 | ||
144 | array ('["00"]' .. '["ff"]') of ... */ | |
145 | while (type_is_full_subrange_of_target_type (type)) | |
146 | type = TYPE_TARGET_TYPE (type); | |
147 | } | |
148 | ||
43bbcdc2 | 149 | switch (TYPE_CODE (type)) |
14f9c5c9 AS |
150 | { |
151 | case TYPE_CODE_RANGE: | |
14f9c5c9 | 152 | case TYPE_CODE_ENUM: |
43bbcdc2 | 153 | { |
ded4fc8f | 154 | LONGEST lo = 0, hi = 0; /* init for gcc -Wall */ |
492d29ea | 155 | int got_error = 0; |
e62e21fd | 156 | |
a70b8144 | 157 | try |
950c97d8 JB |
158 | { |
159 | lo = ada_discrete_type_low_bound (type); | |
160 | hi = ada_discrete_type_high_bound (type); | |
161 | } | |
230d2906 | 162 | catch (const gdb_exception_error &e) |
950c97d8 JB |
163 | { |
164 | /* This can happen when the range is dynamic. Sometimes, | |
165 | resolving dynamic property values requires us to have | |
166 | access to an actual object, which is not available | |
167 | when the user is using the "ptype" command on a type. | |
168 | Print the range as an unbounded range. */ | |
169 | fprintf_filtered (stream, "<>"); | |
492d29ea | 170 | got_error = 1; |
950c97d8 | 171 | } |
492d29ea PA |
172 | |
173 | if (!got_error) | |
950c97d8 | 174 | { |
16b9eb7b | 175 | ada_print_scalar (type, lo, stream); |
950c97d8 | 176 | fprintf_filtered (stream, " .. "); |
16b9eb7b | 177 | ada_print_scalar (type, hi, stream); |
950c97d8 | 178 | } |
43bbcdc2 | 179 | } |
14f9c5c9 AS |
180 | break; |
181 | default: | |
14f9c5c9 | 182 | fprintf_filtered (stream, "%.*s", |
d2e4a39e AS |
183 | ada_name_prefix_len (TYPE_NAME (type)), |
184 | TYPE_NAME (type)); | |
43bbcdc2 | 185 | break; |
14f9c5c9 AS |
186 | } |
187 | } | |
188 | ||
189 | /* Print the number or discriminant bound at BOUNDS+*N on STREAM, and | |
4c4b4cd2 | 190 | set *N past the bound and its delimiter, if any. */ |
14f9c5c9 AS |
191 | |
192 | static void | |
e6a959d6 | 193 | print_range_bound (struct type *type, const char *bounds, int *n, |
d2e4a39e | 194 | struct ui_file *stream) |
14f9c5c9 AS |
195 | { |
196 | LONGEST B; | |
5b4ee69b | 197 | |
14f9c5c9 AS |
198 | if (ada_scan_number (bounds, *n, &B, n)) |
199 | { | |
4c4b4cd2 PH |
200 | /* STABS decodes all range types which bounds are 0 .. -1 as |
201 | unsigned integers (ie. the type code is TYPE_CODE_INT, not | |
202 | TYPE_CODE_RANGE). Unfortunately, ada_print_scalar() relies | |
203 | on the unsigned flag to determine whether the bound should | |
204 | be printed as a signed or an unsigned value. This causes | |
205 | the upper bound of the 0 .. -1 range types to be printed as | |
206 | a very large unsigned number instead of -1. | |
7c964f07 UW |
207 | To workaround this stabs deficiency, we replace the TYPE by NULL |
208 | to indicate default output when we detect that the bound is negative, | |
4c4b4cd2 PH |
209 | and the type is a TYPE_CODE_INT. The bound is negative when |
210 | 'm' is the last character of the number scanned in BOUNDS. */ | |
211 | if (bounds[*n - 1] == 'm' && TYPE_CODE (type) == TYPE_CODE_INT) | |
7c964f07 | 212 | type = NULL; |
14f9c5c9 AS |
213 | ada_print_scalar (type, B, stream); |
214 | if (bounds[*n] == '_') | |
215 | *n += 2; | |
216 | } | |
217 | else | |
218 | { | |
219 | int bound_len; | |
e6a959d6 PA |
220 | const char *bound = bounds + *n; |
221 | const char *pend; | |
14f9c5c9 AS |
222 | |
223 | pend = strstr (bound, "__"); | |
224 | if (pend == NULL) | |
225 | *n += bound_len = strlen (bound); | |
d2e4a39e | 226 | else |
14f9c5c9 AS |
227 | { |
228 | bound_len = pend - bound; | |
229 | *n += bound_len + 2; | |
230 | } | |
231 | fprintf_filtered (stream, "%.*s", bound_len, bound); | |
232 | } | |
233 | } | |
234 | ||
235 | /* Assuming NAME[0 .. NAME_LEN-1] is the name of a range type, print | |
236 | the value (if found) of the bound indicated by SUFFIX ("___L" or | |
4c4b4cd2 | 237 | "___U") according to the ___XD conventions. */ |
14f9c5c9 AS |
238 | |
239 | static void | |
d2e4a39e AS |
240 | print_dynamic_range_bound (struct type *type, const char *name, int name_len, |
241 | const char *suffix, struct ui_file *stream) | |
14f9c5c9 | 242 | { |
14f9c5c9 | 243 | LONGEST B; |
3ec5942f SM |
244 | std::string name_buf (name, name_len); |
245 | name_buf += suffix; | |
14f9c5c9 | 246 | |
3ec5942f | 247 | if (get_int_var_value (name_buf.c_str (), B)) |
14f9c5c9 AS |
248 | ada_print_scalar (type, B, stream); |
249 | else | |
250 | fprintf_filtered (stream, "?"); | |
251 | } | |
252 | ||
28c85d6c | 253 | /* Print RAW_TYPE as a range type, using any bound information |
fb151210 JB |
254 | following the GNAT encoding (if available). |
255 | ||
256 | If BOUNDS_PREFERED_P is nonzero, force the printing of the range | |
257 | using its bounds. Otherwise, try printing the range without | |
258 | printing the value of the bounds, if possible (this is only | |
259 | considered a hint, not a guaranty). */ | |
14f9c5c9 AS |
260 | |
261 | static void | |
fb151210 JB |
262 | print_range_type (struct type *raw_type, struct ui_file *stream, |
263 | int bounds_prefered_p) | |
14f9c5c9 | 264 | { |
0d5cff50 | 265 | const char *name; |
14f9c5c9 | 266 | struct type *base_type; |
0d5cff50 | 267 | const char *subtype_info; |
14f9c5c9 | 268 | |
28c85d6c JB |
269 | gdb_assert (raw_type != NULL); |
270 | name = TYPE_NAME (raw_type); | |
271 | gdb_assert (name != NULL); | |
1ce677a4 UW |
272 | |
273 | if (TYPE_CODE (raw_type) == TYPE_CODE_RANGE) | |
14f9c5c9 AS |
274 | base_type = TYPE_TARGET_TYPE (raw_type); |
275 | else | |
276 | base_type = raw_type; | |
277 | ||
278 | subtype_info = strstr (name, "___XD"); | |
1ce677a4 | 279 | if (subtype_info == NULL) |
fb151210 | 280 | print_range (raw_type, stream, bounds_prefered_p); |
14f9c5c9 AS |
281 | else |
282 | { | |
283 | int prefix_len = subtype_info - name; | |
e6a959d6 | 284 | const char *bounds_str; |
14f9c5c9 AS |
285 | int n; |
286 | ||
287 | subtype_info += 5; | |
288 | bounds_str = strchr (subtype_info, '_'); | |
289 | n = 1; | |
290 | ||
d2e4a39e | 291 | if (*subtype_info == 'L') |
14f9c5c9 | 292 | { |
4c4b4cd2 | 293 | print_range_bound (base_type, bounds_str, &n, stream); |
14f9c5c9 AS |
294 | subtype_info += 1; |
295 | } | |
296 | else | |
4c4b4cd2 | 297 | print_dynamic_range_bound (base_type, name, prefix_len, "___L", |
d2e4a39e | 298 | stream); |
14f9c5c9 AS |
299 | |
300 | fprintf_filtered (stream, " .. "); | |
301 | ||
d2e4a39e | 302 | if (*subtype_info == 'U') |
4c4b4cd2 | 303 | print_range_bound (base_type, bounds_str, &n, stream); |
14f9c5c9 | 304 | else |
4c4b4cd2 | 305 | print_dynamic_range_bound (base_type, name, prefix_len, "___U", |
d2e4a39e | 306 | stream); |
14f9c5c9 | 307 | } |
d2e4a39e | 308 | } |
14f9c5c9 | 309 | |
4c4b4cd2 | 310 | /* Print enumerated type TYPE on STREAM. */ |
14f9c5c9 AS |
311 | |
312 | static void | |
ebf56fd3 | 313 | print_enum_type (struct type *type, struct ui_file *stream) |
14f9c5c9 AS |
314 | { |
315 | int len = TYPE_NFIELDS (type); | |
14e75d8e JK |
316 | int i; |
317 | LONGEST lastval; | |
14f9c5c9 AS |
318 | |
319 | fprintf_filtered (stream, "("); | |
320 | wrap_here (" "); | |
321 | ||
322 | lastval = 0; | |
323 | for (i = 0; i < len; i++) | |
324 | { | |
325 | QUIT; | |
d2e4a39e AS |
326 | if (i) |
327 | fprintf_filtered (stream, ", "); | |
14f9c5c9 AS |
328 | wrap_here (" "); |
329 | fputs_filtered (ada_enum_name (TYPE_FIELD_NAME (type, i)), stream); | |
14e75d8e | 330 | if (lastval != TYPE_FIELD_ENUMVAL (type, i)) |
14f9c5c9 | 331 | { |
14e75d8e JK |
332 | fprintf_filtered (stream, " => %s", |
333 | plongest (TYPE_FIELD_ENUMVAL (type, i))); | |
334 | lastval = TYPE_FIELD_ENUMVAL (type, i); | |
14f9c5c9 AS |
335 | } |
336 | lastval += 1; | |
337 | } | |
338 | fprintf_filtered (stream, ")"); | |
339 | } | |
340 | ||
4c4b4cd2 | 341 | /* Print representation of Ada fixed-point type TYPE on STREAM. */ |
14f9c5c9 AS |
342 | |
343 | static void | |
ebf56fd3 | 344 | print_fixed_point_type (struct type *type, struct ui_file *stream) |
14f9c5c9 | 345 | { |
50eff16b UW |
346 | struct value *delta = ada_delta (type); |
347 | struct value *small = ada_scaling_factor (type); | |
14f9c5c9 | 348 | |
50eff16b | 349 | if (delta == nullptr) |
14f9c5c9 AS |
350 | fprintf_filtered (stream, "delta ??"); |
351 | else | |
352 | { | |
50eff16b UW |
353 | std::string str; |
354 | str = target_float_to_string (value_contents (delta), | |
355 | value_type (delta), "%g"); | |
356 | fprintf_filtered (stream, "delta %s", str.c_str()); | |
357 | if (!value_equal (delta, small)) | |
358 | { | |
359 | str = target_float_to_string (value_contents (small), | |
360 | value_type (small), "%g"); | |
361 | fprintf_filtered (stream, " <'small = %s>", str.c_str()); | |
362 | } | |
14f9c5c9 AS |
363 | } |
364 | } | |
365 | ||
4c4b4cd2 PH |
366 | /* Print simple (constrained) array type TYPE on STREAM. LEVEL is the |
367 | recursion (indentation) level, in case the element type itself has | |
14f9c5c9 | 368 | nested structure, and SHOW is the number of levels of internal |
4c4b4cd2 | 369 | structure to show (see ada_print_type). */ |
14f9c5c9 AS |
370 | |
371 | static void | |
d2e4a39e | 372 | print_array_type (struct type *type, struct ui_file *stream, int show, |
79d43c61 | 373 | int level, const struct type_print_options *flags) |
14f9c5c9 AS |
374 | { |
375 | int bitsize; | |
376 | int n_indices; | |
bfca584f | 377 | struct type *elt_type = NULL; |
14f9c5c9 | 378 | |
ad82864c | 379 | if (ada_is_constrained_packed_array_type (type)) |
727e3d2e JB |
380 | type = ada_coerce_to_simple_array_type (type); |
381 | ||
14f9c5c9 AS |
382 | bitsize = 0; |
383 | fprintf_filtered (stream, "array ("); | |
384 | ||
cb249c71 TT |
385 | if (type == NULL) |
386 | { | |
7f6aba03 TT |
387 | fprintf_styled (stream, metadata_style.style (), |
388 | _("<undecipherable array type>")); | |
cb249c71 TT |
389 | return; |
390 | } | |
391 | ||
14f9c5c9 | 392 | n_indices = -1; |
54ae186f | 393 | if (ada_is_simple_array_type (type)) |
14f9c5c9 | 394 | { |
54ae186f JB |
395 | struct type *range_desc_type; |
396 | struct type *arr_type; | |
14f9c5c9 | 397 | |
54ae186f JB |
398 | range_desc_type = ada_find_parallel_type (type, "___XA"); |
399 | ada_fixup_array_indexes_type (range_desc_type); | |
28c85d6c | 400 | |
54ae186f JB |
401 | bitsize = 0; |
402 | if (range_desc_type == NULL) | |
403 | { | |
404 | for (arr_type = type; TYPE_CODE (arr_type) == TYPE_CODE_ARRAY; | |
405 | arr_type = TYPE_TARGET_TYPE (arr_type)) | |
14f9c5c9 | 406 | { |
54ae186f JB |
407 | if (arr_type != type) |
408 | fprintf_filtered (stream, ", "); | |
fb151210 JB |
409 | print_range (TYPE_INDEX_TYPE (arr_type), stream, |
410 | 0 /* bounds_prefered_p */); | |
54ae186f JB |
411 | if (TYPE_FIELD_BITSIZE (arr_type, 0) > 0) |
412 | bitsize = TYPE_FIELD_BITSIZE (arr_type, 0); | |
14f9c5c9 AS |
413 | } |
414 | } | |
d2e4a39e | 415 | else |
14f9c5c9 | 416 | { |
54ae186f | 417 | int k; |
5b4ee69b | 418 | |
54ae186f JB |
419 | n_indices = TYPE_NFIELDS (range_desc_type); |
420 | for (k = 0, arr_type = type; | |
421 | k < n_indices; | |
422 | k += 1, arr_type = TYPE_TARGET_TYPE (arr_type)) | |
423 | { | |
424 | if (k > 0) | |
425 | fprintf_filtered (stream, ", "); | |
426 | print_range_type (TYPE_FIELD_TYPE (range_desc_type, k), | |
fb151210 | 427 | stream, 0 /* bounds_prefered_p */); |
54ae186f JB |
428 | if (TYPE_FIELD_BITSIZE (arr_type, 0) > 0) |
429 | bitsize = TYPE_FIELD_BITSIZE (arr_type, 0); | |
430 | } | |
14f9c5c9 AS |
431 | } |
432 | } | |
54ae186f JB |
433 | else |
434 | { | |
435 | int i, i0; | |
436 | ||
437 | for (i = i0 = ada_array_arity (type); i > 0; i -= 1) | |
438 | fprintf_filtered (stream, "%s<>", i == i0 ? "" : ", "); | |
439 | } | |
14f9c5c9 | 440 | |
bfca584f | 441 | elt_type = ada_array_element_type (type, n_indices); |
14f9c5c9 AS |
442 | fprintf_filtered (stream, ") of "); |
443 | wrap_here (""); | |
bfca584f PMR |
444 | ada_print_type (elt_type, "", stream, show == 0 ? 0 : show - 1, level + 1, |
445 | flags); | |
446 | /* Arrays with variable-length elements are never bit-packed in practice but | |
447 | compilers have to describe their stride so that we can properly fetch | |
448 | individual elements. Do not say the array is packed in this case. */ | |
449 | if (bitsize > 0 && !is_dynamic_type (elt_type)) | |
14f9c5c9 AS |
450 | fprintf_filtered (stream, " <packed: %d-bit elements>", bitsize); |
451 | } | |
452 | ||
453 | /* Print the choices encoded by field FIELD_NUM of variant-part TYPE on | |
83e3a93c | 454 | STREAM, assuming that VAL_TYPE (if non-NULL) is the type of the |
feb864b7 | 455 | values. Return non-zero if the field is an encoding of |
83e3a93c PH |
456 | discriminant values, as in a standard variant record, and 0 if the |
457 | field is not so encoded (as happens with single-component variants | |
feb864b7 | 458 | in types annotated with pragma Unchecked_Variant). */ |
14f9c5c9 | 459 | |
83e3a93c | 460 | static int |
d2e4a39e AS |
461 | print_choices (struct type *type, int field_num, struct ui_file *stream, |
462 | struct type *val_type) | |
14f9c5c9 AS |
463 | { |
464 | int have_output; | |
465 | int p; | |
d2e4a39e | 466 | const char *name = TYPE_FIELD_NAME (type, field_num); |
14f9c5c9 AS |
467 | |
468 | have_output = 0; | |
469 | ||
4c4b4cd2 | 470 | /* Skip over leading 'V': NOTE soon to be obsolete. */ |
14f9c5c9 AS |
471 | if (name[0] == 'V') |
472 | { | |
d2e4a39e | 473 | if (!ada_scan_number (name, 1, NULL, &p)) |
14f9c5c9 AS |
474 | goto Huh; |
475 | } | |
476 | else | |
477 | p = 0; | |
478 | ||
479 | while (1) | |
480 | { | |
d2e4a39e | 481 | switch (name[p]) |
14f9c5c9 AS |
482 | { |
483 | default: | |
83e3a93c PH |
484 | goto Huh; |
485 | case '_': | |
486 | case '\0': | |
487 | fprintf_filtered (stream, " =>"); | |
488 | return 1; | |
14f9c5c9 AS |
489 | case 'S': |
490 | case 'R': | |
491 | case 'O': | |
d2e4a39e | 492 | if (have_output) |
14f9c5c9 AS |
493 | fprintf_filtered (stream, " | "); |
494 | have_output = 1; | |
495 | break; | |
496 | } | |
497 | ||
d2e4a39e | 498 | switch (name[p]) |
14f9c5c9 AS |
499 | { |
500 | case 'S': | |
501 | { | |
502 | LONGEST W; | |
5b4ee69b | 503 | |
d2e4a39e | 504 | if (!ada_scan_number (name, p + 1, &W, &p)) |
14f9c5c9 AS |
505 | goto Huh; |
506 | ada_print_scalar (val_type, W, stream); | |
507 | break; | |
508 | } | |
509 | case 'R': | |
510 | { | |
511 | LONGEST L, U; | |
5b4ee69b | 512 | |
d2e4a39e AS |
513 | if (!ada_scan_number (name, p + 1, &L, &p) |
514 | || name[p] != 'T' || !ada_scan_number (name, p + 1, &U, &p)) | |
14f9c5c9 AS |
515 | goto Huh; |
516 | ada_print_scalar (val_type, L, stream); | |
517 | fprintf_filtered (stream, " .. "); | |
518 | ada_print_scalar (val_type, U, stream); | |
519 | break; | |
520 | } | |
521 | case 'O': | |
522 | fprintf_filtered (stream, "others"); | |
523 | p += 1; | |
524 | break; | |
525 | } | |
526 | } | |
527 | ||
528 | Huh: | |
6c71eb7d | 529 | fprintf_filtered (stream, "? =>"); |
83e3a93c | 530 | return 0; |
14f9c5c9 AS |
531 | } |
532 | ||
83e3a93c PH |
533 | /* Assuming that field FIELD_NUM of TYPE represents variants whose |
534 | discriminant is contained in OUTER_TYPE, print its components on STREAM. | |
535 | LEVEL is the recursion (indentation) level, in case any of the fields | |
536 | themselves have nested structure, and SHOW is the number of levels of | |
537 | internal structure to show (see ada_print_type). For this purpose, | |
538 | fields nested in a variant part are taken to be at the same level as | |
539 | the fields immediately outside the variant part. */ | |
14f9c5c9 AS |
540 | |
541 | static void | |
ebf56fd3 AS |
542 | print_variant_clauses (struct type *type, int field_num, |
543 | struct type *outer_type, struct ui_file *stream, | |
79d43c61 TT |
544 | int show, int level, |
545 | const struct type_print_options *flags) | |
14f9c5c9 AS |
546 | { |
547 | int i; | |
4c4b4cd2 | 548 | struct type *var_type, *par_type; |
14f9c5c9 AS |
549 | struct type *discr_type; |
550 | ||
551 | var_type = TYPE_FIELD_TYPE (type, field_num); | |
552 | discr_type = ada_variant_discrim_type (var_type, outer_type); | |
553 | ||
554 | if (TYPE_CODE (var_type) == TYPE_CODE_PTR) | |
555 | { | |
556 | var_type = TYPE_TARGET_TYPE (var_type); | |
4c4b4cd2 PH |
557 | if (var_type == NULL || TYPE_CODE (var_type) != TYPE_CODE_UNION) |
558 | return; | |
14f9c5c9 AS |
559 | } |
560 | ||
4c4b4cd2 PH |
561 | par_type = ada_find_parallel_type (var_type, "___XVU"); |
562 | if (par_type != NULL) | |
563 | var_type = par_type; | |
564 | ||
d2e4a39e | 565 | for (i = 0; i < TYPE_NFIELDS (var_type); i += 1) |
14f9c5c9 AS |
566 | { |
567 | fprintf_filtered (stream, "\n%*swhen ", level + 4, ""); | |
83e3a93c PH |
568 | if (print_choices (var_type, i, stream, discr_type)) |
569 | { | |
570 | if (print_record_field_types (TYPE_FIELD_TYPE (var_type, i), | |
79d43c61 TT |
571 | outer_type, stream, show, level + 4, |
572 | flags) | |
83e3a93c PH |
573 | <= 0) |
574 | fprintf_filtered (stream, " null;"); | |
575 | } | |
576 | else | |
577 | print_selected_record_field_types (var_type, outer_type, i, i, | |
79d43c61 | 578 | stream, show, level + 4, flags); |
14f9c5c9 AS |
579 | } |
580 | } | |
581 | ||
4c4b4cd2 | 582 | /* Assuming that field FIELD_NUM of TYPE is a variant part whose |
14f9c5c9 | 583 | discriminants are contained in OUTER_TYPE, print a description of it |
4c4b4cd2 PH |
584 | on STREAM. LEVEL is the recursion (indentation) level, in case any of |
585 | the fields themselves have nested structure, and SHOW is the number of | |
586 | levels of internal structure to show (see ada_print_type). For this | |
587 | purpose, fields nested in a variant part are taken to be at the same | |
588 | level as the fields immediately outside the variant part. */ | |
14f9c5c9 AS |
589 | |
590 | static void | |
ebf56fd3 | 591 | print_variant_part (struct type *type, int field_num, struct type *outer_type, |
79d43c61 TT |
592 | struct ui_file *stream, int show, int level, |
593 | const struct type_print_options *flags) | |
14f9c5c9 | 594 | { |
6c71eb7d TT |
595 | const char *variant |
596 | = ada_variant_discrim_name (TYPE_FIELD_TYPE (type, field_num)); | |
597 | if (*variant == '\0') | |
598 | variant = "?"; | |
599 | ||
600 | fprintf_filtered (stream, "\n%*scase %s is", level + 4, "", variant); | |
d2e4a39e | 601 | print_variant_clauses (type, field_num, outer_type, stream, show, |
79d43c61 | 602 | level + 4, flags); |
14f9c5c9 AS |
603 | fprintf_filtered (stream, "\n%*send case;", level + 4, ""); |
604 | } | |
605 | ||
83e3a93c PH |
606 | /* Print a description on STREAM of the fields FLD0 through FLD1 in |
607 | record or union type TYPE, whose discriminants are in OUTER_TYPE. | |
608 | LEVEL is the recursion (indentation) level, in case any of the | |
609 | fields themselves have nested structure, and SHOW is the number of | |
610 | levels of internal structure to show (see ada_print_type). Does | |
feb864b7 | 611 | not print parent type information of TYPE. Returns 0 if no fields |
83e3a93c PH |
612 | printed, -1 for an incomplete type, else > 0. Prints each field |
613 | beginning on a new line, but does not put a new line at end. */ | |
14f9c5c9 AS |
614 | |
615 | static int | |
83e3a93c PH |
616 | print_selected_record_field_types (struct type *type, struct type *outer_type, |
617 | int fld0, int fld1, | |
79d43c61 TT |
618 | struct ui_file *stream, int show, int level, |
619 | const struct type_print_options *flags) | |
14f9c5c9 | 620 | { |
83e3a93c | 621 | int i, flds; |
14f9c5c9 AS |
622 | |
623 | flds = 0; | |
14f9c5c9 | 624 | |
83e3a93c | 625 | if (fld0 > fld1 && TYPE_STUB (type)) |
14f9c5c9 AS |
626 | return -1; |
627 | ||
83e3a93c | 628 | for (i = fld0; i <= fld1; i += 1) |
14f9c5c9 AS |
629 | { |
630 | QUIT; | |
631 | ||
d2e4a39e | 632 | if (ada_is_parent_field (type, i) || ada_is_ignored_field (type, i)) |
14f9c5c9 AS |
633 | ; |
634 | else if (ada_is_wrapper_field (type, i)) | |
635 | flds += print_record_field_types (TYPE_FIELD_TYPE (type, i), type, | |
79d43c61 | 636 | stream, show, level, flags); |
d2e4a39e | 637 | else if (ada_is_variant_part (type, i)) |
14f9c5c9 | 638 | { |
79d43c61 | 639 | print_variant_part (type, i, outer_type, stream, show, level, flags); |
14f9c5c9 AS |
640 | flds = 1; |
641 | } | |
642 | else | |
643 | { | |
644 | flds += 1; | |
645 | fprintf_filtered (stream, "\n%*s", level + 4, ""); | |
646 | ada_print_type (TYPE_FIELD_TYPE (type, i), | |
647 | TYPE_FIELD_NAME (type, i), | |
79d43c61 | 648 | stream, show - 1, level + 4, flags); |
14f9c5c9 AS |
649 | fprintf_filtered (stream, ";"); |
650 | } | |
651 | } | |
652 | ||
653 | return flds; | |
654 | } | |
655 | ||
83e3a93c PH |
656 | /* Print a description on STREAM of all fields of record or union type |
657 | TYPE, as for print_selected_record_field_types, above. */ | |
658 | ||
659 | static int | |
660 | print_record_field_types (struct type *type, struct type *outer_type, | |
79d43c61 TT |
661 | struct ui_file *stream, int show, int level, |
662 | const struct type_print_options *flags) | |
83e3a93c PH |
663 | { |
664 | return print_selected_record_field_types (type, outer_type, | |
665 | 0, TYPE_NFIELDS (type) - 1, | |
79d43c61 | 666 | stream, show, level, flags); |
83e3a93c PH |
667 | } |
668 | ||
669 | ||
4c4b4cd2 PH |
670 | /* Print record type TYPE on STREAM. LEVEL is the recursion (indentation) |
671 | level, in case the element type itself has nested structure, and SHOW is | |
672 | the number of levels of internal structure to show (see ada_print_type). */ | |
14f9c5c9 AS |
673 | |
674 | static void | |
d2e4a39e | 675 | print_record_type (struct type *type0, struct ui_file *stream, int show, |
79d43c61 | 676 | int level, const struct type_print_options *flags) |
14f9c5c9 | 677 | { |
d2e4a39e AS |
678 | struct type *parent_type; |
679 | struct type *type; | |
680 | ||
4c4b4cd2 PH |
681 | type = ada_find_parallel_type (type0, "___XVE"); |
682 | if (type == NULL) | |
683 | type = type0; | |
14f9c5c9 AS |
684 | |
685 | parent_type = ada_parent_type (type); | |
d2e4a39e | 686 | if (ada_type_name (parent_type) != NULL) |
25552254 JB |
687 | { |
688 | const char *parent_name = decoded_type_name (parent_type); | |
689 | ||
690 | /* If we fail to decode the parent type name, then use the parent | |
691 | type name as is. Not pretty, but should never happen except | |
692 | when the debugging info is incomplete or incorrect. This | |
693 | prevents a crash trying to print a NULL pointer. */ | |
694 | if (parent_name == NULL) | |
695 | parent_name = ada_type_name (parent_type); | |
696 | fprintf_filtered (stream, "new %s with record", parent_name); | |
697 | } | |
4c4b4cd2 | 698 | else if (parent_type == NULL && ada_is_tagged_type (type, 0)) |
0b48a291 PH |
699 | fprintf_filtered (stream, "tagged record"); |
700 | else | |
701 | fprintf_filtered (stream, "record"); | |
14f9c5c9 AS |
702 | |
703 | if (show < 0) | |
0b48a291 | 704 | fprintf_filtered (stream, " ... end record"); |
14f9c5c9 AS |
705 | else |
706 | { | |
707 | int flds; | |
708 | ||
709 | flds = 0; | |
710 | if (parent_type != NULL && ada_type_name (parent_type) == NULL) | |
d2e4a39e | 711 | flds += print_record_field_types (parent_type, parent_type, |
79d43c61 TT |
712 | stream, show, level, flags); |
713 | flds += print_record_field_types (type, type, stream, show, level, | |
714 | flags); | |
d2e4a39e | 715 | |
14f9c5c9 | 716 | if (flds > 0) |
0b48a291 | 717 | fprintf_filtered (stream, "\n%*send record", level, ""); |
d2e4a39e | 718 | else if (flds < 0) |
323e0a4a | 719 | fprintf_filtered (stream, _(" <incomplete type> end record")); |
d2e4a39e | 720 | else |
0b48a291 | 721 | fprintf_filtered (stream, " null; end record"); |
14f9c5c9 AS |
722 | } |
723 | } | |
724 | ||
725 | /* Print the unchecked union type TYPE in something resembling Ada | |
4c4b4cd2 | 726 | format on STREAM. LEVEL is the recursion (indentation) level |
14f9c5c9 | 727 | in case the element type itself has nested structure, and SHOW is the |
4c4b4cd2 | 728 | number of levels of internal structure to show (see ada_print_type). */ |
14f9c5c9 | 729 | static void |
d2e4a39e | 730 | print_unchecked_union_type (struct type *type, struct ui_file *stream, |
79d43c61 TT |
731 | int show, int level, |
732 | const struct type_print_options *flags) | |
14f9c5c9 | 733 | { |
14f9c5c9 | 734 | if (show < 0) |
0b48a291 | 735 | fprintf_filtered (stream, "record (?) is ... end record"); |
d2e4a39e | 736 | else if (TYPE_NFIELDS (type) == 0) |
0b48a291 | 737 | fprintf_filtered (stream, "record (?) is null; end record"); |
14f9c5c9 AS |
738 | else |
739 | { | |
740 | int i; | |
741 | ||
0b48a291 | 742 | fprintf_filtered (stream, "record (?) is\n%*scase ? is", level + 4, ""); |
14f9c5c9 | 743 | |
d2e4a39e | 744 | for (i = 0; i < TYPE_NFIELDS (type); i += 1) |
14f9c5c9 | 745 | { |
0b48a291 | 746 | fprintf_filtered (stream, "\n%*swhen ? =>\n%*s", level + 8, "", |
d2e4a39e | 747 | level + 12, ""); |
14f9c5c9 AS |
748 | ada_print_type (TYPE_FIELD_TYPE (type, i), |
749 | TYPE_FIELD_NAME (type, i), | |
79d43c61 | 750 | stream, show - 1, level + 12, flags); |
14f9c5c9 AS |
751 | fprintf_filtered (stream, ";"); |
752 | } | |
753 | ||
0b48a291 | 754 | fprintf_filtered (stream, "\n%*send case;\n%*send record", |
d2e4a39e | 755 | level + 4, "", level, ""); |
14f9c5c9 AS |
756 | } |
757 | } | |
d2e4a39e | 758 | |
14f9c5c9 AS |
759 | |
760 | ||
761 | /* Print function or procedure type TYPE on STREAM. Make it a header | |
4c4b4cd2 | 762 | for function or procedure NAME if NAME is not null. */ |
14f9c5c9 AS |
763 | |
764 | static void | |
79d43c61 TT |
765 | print_func_type (struct type *type, struct ui_file *stream, const char *name, |
766 | const struct type_print_options *flags) | |
14f9c5c9 AS |
767 | { |
768 | int i, len = TYPE_NFIELDS (type); | |
769 | ||
7022349d PA |
770 | if (TYPE_TARGET_TYPE (type) != NULL |
771 | && TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_VOID) | |
14f9c5c9 AS |
772 | fprintf_filtered (stream, "procedure"); |
773 | else | |
774 | fprintf_filtered (stream, "function"); | |
775 | ||
d2e4a39e | 776 | if (name != NULL && name[0] != '\0') |
ac8c53cc PW |
777 | { |
778 | fputs_filtered (" ", stream); | |
779 | fputs_styled (name, function_name_style.style (), stream); | |
780 | } | |
14f9c5c9 | 781 | |
d2e4a39e | 782 | if (len > 0) |
14f9c5c9 AS |
783 | { |
784 | fprintf_filtered (stream, " ("); | |
785 | for (i = 0; i < len; i += 1) | |
786 | { | |
787 | if (i > 0) | |
788 | { | |
789 | fputs_filtered ("; ", stream); | |
790 | wrap_here (" "); | |
791 | } | |
d2e4a39e | 792 | fprintf_filtered (stream, "a%d: ", i + 1); |
79d43c61 TT |
793 | ada_print_type (TYPE_FIELD_TYPE (type, i), "", stream, -1, 0, |
794 | flags); | |
14f9c5c9 AS |
795 | } |
796 | fprintf_filtered (stream, ")"); | |
d2e4a39e | 797 | } |
14f9c5c9 | 798 | |
7022349d PA |
799 | if (TYPE_TARGET_TYPE (type) == NULL) |
800 | fprintf_filtered (stream, " return <unknown return type>"); | |
801 | else if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_VOID) | |
14f9c5c9 AS |
802 | { |
803 | fprintf_filtered (stream, " return "); | |
79d43c61 | 804 | ada_print_type (TYPE_TARGET_TYPE (type), "", stream, 0, 0, flags); |
14f9c5c9 AS |
805 | } |
806 | } | |
807 | ||
808 | ||
809 | /* Print a description of a type TYPE0. | |
810 | Output goes to STREAM (via stdio). | |
811 | If VARSTRING is a non-empty string, print as an Ada variable/field | |
812 | declaration. | |
4c4b4cd2 | 813 | SHOW+1 is the maximum number of levels of internal type structure |
14f9c5c9 AS |
814 | to show (this applies to record types, enumerated types, and |
815 | array types). | |
816 | SHOW is the number of levels of internal type structure to show | |
4c4b4cd2 | 817 | when there is a type name for the SHOWth deepest level (0th is |
14f9c5c9 AS |
818 | outer level). |
819 | When SHOW<0, no inner structure is shown. | |
4c4b4cd2 | 820 | LEVEL indicates level of recursion (for nested definitions). */ |
14f9c5c9 AS |
821 | |
822 | void | |
25b524e8 | 823 | ada_print_type (struct type *type0, const char *varstring, |
79d43c61 TT |
824 | struct ui_file *stream, int show, int level, |
825 | const struct type_print_options *flags) | |
14f9c5c9 | 826 | { |
61ee279c | 827 | struct type *type = ada_check_typedef (ada_get_base_type (type0)); |
f192137b | 828 | char *type_name = decoded_type_name (type0); |
14f9c5c9 AS |
829 | int is_var_decl = (varstring != NULL && varstring[0] != '\0'); |
830 | ||
831 | if (type == NULL) | |
832 | { | |
833 | if (is_var_decl) | |
834 | fprintf_filtered (stream, "%.*s: ", | |
d2e4a39e | 835 | ada_name_prefix_len (varstring), varstring); |
7f6aba03 | 836 | fprintf_styled (stream, metadata_style.style (), "<null type?>"); |
14f9c5c9 AS |
837 | return; |
838 | } | |
839 | ||
840 | if (show > 0) | |
61ee279c | 841 | type = ada_check_typedef (type); |
14f9c5c9 AS |
842 | |
843 | if (is_var_decl && TYPE_CODE (type) != TYPE_CODE_FUNC) | |
d2e4a39e AS |
844 | fprintf_filtered (stream, "%.*s: ", |
845 | ada_name_prefix_len (varstring), varstring); | |
14f9c5c9 | 846 | |
d2d43431 | 847 | if (type_name != NULL && show <= 0 && !ada_is_aligner_type (type)) |
14f9c5c9 | 848 | { |
d2e4a39e | 849 | fprintf_filtered (stream, "%.*s", |
14f9c5c9 AS |
850 | ada_name_prefix_len (type_name), type_name); |
851 | return; | |
852 | } | |
853 | ||
854 | if (ada_is_aligner_type (type)) | |
79d43c61 | 855 | ada_print_type (ada_aligned_type (type), "", stream, show, level, flags); |
d2d43431 JB |
856 | else if (ada_is_constrained_packed_array_type (type) |
857 | && TYPE_CODE (type) != TYPE_CODE_PTR) | |
79d43c61 | 858 | print_array_type (type, stream, show, level, flags); |
14f9c5c9 | 859 | else |
d2e4a39e AS |
860 | switch (TYPE_CODE (type)) |
861 | { | |
862 | default: | |
863 | fprintf_filtered (stream, "<"); | |
79d43c61 | 864 | c_print_type (type, "", stream, show, level, flags); |
d2e4a39e AS |
865 | fprintf_filtered (stream, ">"); |
866 | break; | |
867 | case TYPE_CODE_PTR: | |
720d1a40 | 868 | case TYPE_CODE_TYPEDEF: |
d2e4a39e | 869 | fprintf_filtered (stream, "access "); |
79d43c61 TT |
870 | ada_print_type (TYPE_TARGET_TYPE (type), "", stream, show, level, |
871 | flags); | |
d2e4a39e AS |
872 | break; |
873 | case TYPE_CODE_REF: | |
874 | fprintf_filtered (stream, "<ref> "); | |
79d43c61 TT |
875 | ada_print_type (TYPE_TARGET_TYPE (type), "", stream, show, level, |
876 | flags); | |
d2e4a39e AS |
877 | break; |
878 | case TYPE_CODE_ARRAY: | |
79d43c61 | 879 | print_array_type (type, stream, show, level, flags); |
d2e4a39e | 880 | break; |
690cc4eb PH |
881 | case TYPE_CODE_BOOL: |
882 | fprintf_filtered (stream, "(false, true)"); | |
883 | break; | |
d2e4a39e AS |
884 | case TYPE_CODE_INT: |
885 | if (ada_is_fixed_point_type (type)) | |
886 | print_fixed_point_type (type, stream); | |
d2e4a39e AS |
887 | else |
888 | { | |
0d5cff50 | 889 | const char *name = ada_type_name (type); |
5b4ee69b | 890 | |
d2e4a39e | 891 | if (!ada_is_range_type_name (name)) |
7f6aba03 TT |
892 | fprintf_styled (stream, metadata_style.style (), |
893 | _("<%s-byte integer>"), | |
894 | pulongest (TYPE_LENGTH (type))); | |
d2e4a39e AS |
895 | else |
896 | { | |
897 | fprintf_filtered (stream, "range "); | |
fb151210 | 898 | print_range_type (type, stream, 1 /* bounds_prefered_p */); |
d2e4a39e AS |
899 | } |
900 | } | |
901 | break; | |
902 | case TYPE_CODE_RANGE: | |
903 | if (ada_is_fixed_point_type (type)) | |
904 | print_fixed_point_type (type, stream); | |
d2e4a39e | 905 | else if (ada_is_modular_type (type)) |
529cad9c PH |
906 | fprintf_filtered (stream, "mod %s", |
907 | int_string (ada_modulus (type), 10, 0, 0, 1)); | |
d2e4a39e AS |
908 | else |
909 | { | |
910 | fprintf_filtered (stream, "range "); | |
fb151210 | 911 | print_range (type, stream, 1 /* bounds_prefered_p */); |
d2e4a39e AS |
912 | } |
913 | break; | |
914 | case TYPE_CODE_FLT: | |
7f6aba03 TT |
915 | fprintf_styled (stream, metadata_style.style (), |
916 | _("<%s-byte float>"), | |
917 | pulongest (TYPE_LENGTH (type))); | |
d2e4a39e AS |
918 | break; |
919 | case TYPE_CODE_ENUM: | |
920 | if (show < 0) | |
921 | fprintf_filtered (stream, "(...)"); | |
922 | else | |
923 | print_enum_type (type, stream); | |
924 | break; | |
925 | case TYPE_CODE_STRUCT: | |
4c4b4cd2 | 926 | if (ada_is_array_descriptor_type (type)) |
79d43c61 | 927 | print_array_type (type, stream, show, level, flags); |
d2e4a39e AS |
928 | else if (ada_is_bogus_array_descriptor (type)) |
929 | fprintf_filtered (stream, | |
e1d5a0d2 | 930 | _("array (?) of ? (<mal-formed descriptor>)")); |
d2e4a39e | 931 | else |
79d43c61 | 932 | print_record_type (type, stream, show, level, flags); |
d2e4a39e AS |
933 | break; |
934 | case TYPE_CODE_UNION: | |
79d43c61 | 935 | print_unchecked_union_type (type, stream, show, level, flags); |
d2e4a39e AS |
936 | break; |
937 | case TYPE_CODE_FUNC: | |
79d43c61 | 938 | print_func_type (type, stream, varstring, flags); |
d2e4a39e AS |
939 | break; |
940 | } | |
14f9c5c9 | 941 | } |
be942545 JB |
942 | |
943 | /* Implement the la_print_typedef language method for Ada. */ | |
944 | ||
945 | void | |
946 | ada_print_typedef (struct type *type, struct symbol *new_symbol, | |
947 | struct ui_file *stream) | |
948 | { | |
949 | type = ada_check_typedef (type); | |
79d43c61 | 950 | ada_print_type (type, "", stream, 0, 0, &type_print_raw_options); |
be942545 | 951 | } |