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c906108c 1/* Support for printing Fortran types for GDB, the GNU debugger.
1bac305b 2
e2882c85 3 Copyright (C) 1986-2018 Free Software Foundation, Inc.
1bac305b 4
c906108c
SS
5 Contributed by Motorola. Adapted from the C version by Farooq Butt
6 (fmbutt@engage.sps.mot.com).
7
c5aa993b 8 This file is part of GDB.
c906108c 9
c5aa993b
JM
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
a9762ec7 12 the Free Software Foundation; either version 3 of the License, or
c5aa993b 13 (at your option) any later version.
c906108c 14
c5aa993b
JM
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
c906108c 19
c5aa993b 20 You should have received a copy of the GNU General Public License
a9762ec7 21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
c906108c
SS
22
23#include "defs.h"
04ea0df1 24#include "gdb_obstack.h"
c906108c
SS
25#include "bfd.h"
26#include "symtab.h"
27#include "gdbtypes.h"
28#include "expression.h"
29#include "value.h"
30#include "gdbcore.h"
31#include "target.h"
c906108c 32#include "f-lang.h"
3f2f83dd 33#include "typeprint.h"
c906108c 34
0963b4bd 35#if 0 /* Currently unused. */
d9fcf2fb 36static void f_type_print_args (struct type *, struct ui_file *);
c906108c
SS
37#endif
38
0311118f 39static void f_type_print_varspec_suffix (struct type *, struct ui_file *, int,
d9fcf2fb 40 int, int, int);
c906108c 41
d9fcf2fb
JM
42void f_type_print_varspec_prefix (struct type *, struct ui_file *,
43 int, int);
c906108c 44
d9fcf2fb 45void f_type_print_base (struct type *, struct ui_file *, int, int);
c906108c 46\f
c5aa993b 47
c906108c
SS
48/* LEVEL is the depth to indent lines by. */
49
50void
25b524e8 51f_print_type (struct type *type, const char *varstring, struct ui_file *stream,
79d43c61 52 int show, int level, const struct type_print_options *flags)
c906108c 53{
52f0bd74 54 enum type_code code;
c906108c 55
3f2f83dd
KB
56 if (type_not_associated (type))
57 {
58 val_print_not_associated (stream);
59 return;
60 }
61
62 if (type_not_allocated (type))
63 {
64 val_print_not_allocated (stream);
65 return;
66 }
67
c906108c
SS
68 f_type_print_base (type, stream, show, level);
69 code = TYPE_CODE (type);
70 if ((varstring != NULL && *varstring != '\0')
c5aa993b
JM
71 /* Need a space if going to print stars or brackets;
72 but not if we will print just a type name. */
905e0470
PM
73 || ((show > 0 || TYPE_NAME (type) == 0)
74 && (code == TYPE_CODE_PTR || code == TYPE_CODE_FUNC
75 || code == TYPE_CODE_METHOD
76 || code == TYPE_CODE_ARRAY
77 || code == TYPE_CODE_REF)))
c906108c
SS
78 fputs_filtered (" ", stream);
79 f_type_print_varspec_prefix (type, stream, show, 0);
80
a7dfd010
MD
81 if (varstring != NULL)
82 {
2123df0e
YQ
83 int demangled_args;
84
a7dfd010 85 fputs_filtered (varstring, stream);
c906108c 86
a7dfd010 87 /* For demangled function names, we have the arglist as part of the name,
0963b4bd 88 so don't print an additional pair of ()'s. */
c906108c 89
2123df0e
YQ
90 demangled_args = (*varstring != '\0'
91 && varstring[strlen (varstring) - 1] == ')');
0311118f 92 f_type_print_varspec_suffix (type, stream, show, 0, demangled_args, 0);
a7dfd010 93 }
c906108c
SS
94}
95
96/* Print any asterisks or open-parentheses needed before the
97 variable name (to describe its type).
98
99 On outermost call, pass 0 for PASSED_A_PTR.
100 On outermost call, SHOW > 0 means should ignore
101 any typename for TYPE and show its details.
102 SHOW is always zero on recursive calls. */
103
104void
fba45db2
KB
105f_type_print_varspec_prefix (struct type *type, struct ui_file *stream,
106 int show, int passed_a_ptr)
c906108c
SS
107{
108 if (type == 0)
109 return;
110
111 if (TYPE_NAME (type) && show <= 0)
112 return;
113
114 QUIT;
115
116 switch (TYPE_CODE (type))
117 {
118 case TYPE_CODE_PTR:
119 f_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 1);
120 break;
121
122 case TYPE_CODE_FUNC:
123 f_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0);
124 if (passed_a_ptr)
125 fprintf_filtered (stream, "(");
126 break;
127
128 case TYPE_CODE_ARRAY:
129 f_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0);
130 break;
131
132 case TYPE_CODE_UNDEF:
133 case TYPE_CODE_STRUCT:
134 case TYPE_CODE_UNION:
135 case TYPE_CODE_ENUM:
136 case TYPE_CODE_INT:
137 case TYPE_CODE_FLT:
138 case TYPE_CODE_VOID:
139 case TYPE_CODE_ERROR:
140 case TYPE_CODE_CHAR:
141 case TYPE_CODE_BOOL:
142 case TYPE_CODE_SET:
143 case TYPE_CODE_RANGE:
144 case TYPE_CODE_STRING:
c906108c 145 case TYPE_CODE_METHOD:
c906108c
SS
146 case TYPE_CODE_REF:
147 case TYPE_CODE_COMPLEX:
148 case TYPE_CODE_TYPEDEF:
149 /* These types need no prefix. They are listed here so that
c5aa993b 150 gcc -Wall will reveal any types that haven't been handled. */
c906108c
SS
151 break;
152 }
153}
154
c906108c
SS
155/* Print any array sizes, function arguments or close parentheses
156 needed after the variable name (to describe its type).
157 Args work like c_type_print_varspec_prefix. */
158
159static void
fba45db2 160f_type_print_varspec_suffix (struct type *type, struct ui_file *stream,
0311118f
JK
161 int show, int passed_a_ptr, int demangled_args,
162 int arrayprint_recurse_level)
c906108c
SS
163{
164 int upper_bound, lower_bound;
9216103f 165
0311118f
JK
166 /* No static variables are permitted as an error call may occur during
167 execution of this function. */
c906108c
SS
168
169 if (type == 0)
170 return;
171
172 if (TYPE_NAME (type) && show <= 0)
173 return;
174
175 QUIT;
176
177 switch (TYPE_CODE (type))
178 {
179 case TYPE_CODE_ARRAY:
180 arrayprint_recurse_level++;
181
182 if (arrayprint_recurse_level == 1)
c5aa993b 183 fprintf_filtered (stream, "(");
c906108c 184
3f2f83dd
KB
185 if (type_not_associated (type))
186 val_print_not_associated (stream);
187 else if (type_not_allocated (type))
188 val_print_not_allocated (stream);
c5aa993b 189 else
3f2f83dd
KB
190 {
191 if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_ARRAY)
192 f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0,
193 0, 0, arrayprint_recurse_level);
194
195 lower_bound = f77_get_lowerbound (type);
196 if (lower_bound != 1) /* Not the default. */
197 fprintf_filtered (stream, "%d:", lower_bound);
198
199 /* Make sure that, if we have an assumed size array, we
200 print out a warning and print the upperbound as '*'. */
201
202 if (TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type))
203 fprintf_filtered (stream, "*");
204 else
205 {
206 upper_bound = f77_get_upperbound (type);
207 fprintf_filtered (stream, "%d", upper_bound);
208 }
209
210 if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_ARRAY)
211 f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0,
212 0, 0, arrayprint_recurse_level);
213 }
c906108c
SS
214 if (arrayprint_recurse_level == 1)
215 fprintf_filtered (stream, ")");
216 else
c5aa993b 217 fprintf_filtered (stream, ",");
c906108c
SS
218 arrayprint_recurse_level--;
219 break;
220
221 case TYPE_CODE_PTR:
222 case TYPE_CODE_REF:
0311118f
JK
223 f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 1, 0,
224 arrayprint_recurse_level);
c5aa993b 225 fprintf_filtered (stream, ")");
c906108c
SS
226 break;
227
228 case TYPE_CODE_FUNC:
229 f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0,
0311118f 230 passed_a_ptr, 0, arrayprint_recurse_level);
c906108c
SS
231 if (passed_a_ptr)
232 fprintf_filtered (stream, ")");
233
234 fprintf_filtered (stream, "()");
235 break;
236
237 case TYPE_CODE_UNDEF:
238 case TYPE_CODE_STRUCT:
239 case TYPE_CODE_UNION:
240 case TYPE_CODE_ENUM:
241 case TYPE_CODE_INT:
242 case TYPE_CODE_FLT:
243 case TYPE_CODE_VOID:
244 case TYPE_CODE_ERROR:
245 case TYPE_CODE_CHAR:
246 case TYPE_CODE_BOOL:
247 case TYPE_CODE_SET:
248 case TYPE_CODE_RANGE:
249 case TYPE_CODE_STRING:
c906108c 250 case TYPE_CODE_METHOD:
c906108c
SS
251 case TYPE_CODE_COMPLEX:
252 case TYPE_CODE_TYPEDEF:
253 /* These types do not need a suffix. They are listed so that
c5aa993b 254 gcc -Wall will report types that may not have been considered. */
c906108c
SS
255 break;
256 }
257}
258
c906108c
SS
259/* Print the name of the type (or the ultimate pointer target,
260 function value or array element), or the description of a
261 structure or union.
262
263 SHOW nonzero means don't print this type as just its name;
264 show its real definition even if it has a name.
265 SHOW zero means print just typename or struct tag if there is one
266 SHOW negative means abbreviate structure elements.
267 SHOW is decremented for printing of structure elements.
268
269 LEVEL is the depth to indent by.
270 We increase it for some recursive calls. */
271
272void
fba45db2
KB
273f_type_print_base (struct type *type, struct ui_file *stream, int show,
274 int level)
c906108c 275{
c906108c 276 int upper_bound;
2a5e440c
WZ
277 int index;
278
c906108c
SS
279 QUIT;
280
281 wrap_here (" ");
282 if (type == NULL)
283 {
284 fputs_filtered ("<type unknown>", stream);
285 return;
286 }
287
288 /* When SHOW is zero or less, and there is a valid type name, then always
0963b4bd 289 just print the type name directly from the type. */
c906108c
SS
290
291 if ((show <= 0) && (TYPE_NAME (type) != NULL))
292 {
72b17055 293 fprintfi_filtered (level, stream, "%s", TYPE_NAME (type));
c906108c
SS
294 return;
295 }
296
297 if (TYPE_CODE (type) != TYPE_CODE_TYPEDEF)
f168693b 298 type = check_typedef (type);
c906108c
SS
299
300 switch (TYPE_CODE (type))
301 {
302 case TYPE_CODE_TYPEDEF:
303 f_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level);
304 break;
305
306 case TYPE_CODE_ARRAY:
c906108c 307 f_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
7022349d
PA
308 break;
309 case TYPE_CODE_FUNC:
310 if (TYPE_TARGET_TYPE (type) == NULL)
311 type_print_unknown_return_type (stream);
312 else
313 f_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
c906108c
SS
314 break;
315
c5aa993b 316 case TYPE_CODE_PTR:
a5ad232b
FP
317 fprintfi_filtered (level, stream, "PTR TO -> ( ");
318 f_type_print_base (TYPE_TARGET_TYPE (type), stream, show, 0);
7e86466e
RH
319 break;
320
321 case TYPE_CODE_REF:
a5ad232b
FP
322 fprintfi_filtered (level, stream, "REF TO -> ( ");
323 f_type_print_base (TYPE_TARGET_TYPE (type), stream, show, 0);
c906108c
SS
324 break;
325
326 case TYPE_CODE_VOID:
2a5e440c 327 fprintfi_filtered (level, stream, "VOID");
c906108c
SS
328 break;
329
330 case TYPE_CODE_UNDEF:
2a5e440c 331 fprintfi_filtered (level, stream, "struct <unknown>");
c906108c
SS
332 break;
333
334 case TYPE_CODE_ERROR:
b00fdb78 335 fprintfi_filtered (level, stream, "%s", TYPE_ERROR_NAME (type));
c906108c
SS
336 break;
337
338 case TYPE_CODE_RANGE:
0963b4bd 339 /* This should not occur. */
2a5e440c 340 fprintfi_filtered (level, stream, "<range type>");
c906108c
SS
341 break;
342
343 case TYPE_CODE_CHAR:
c906108c
SS
344 case TYPE_CODE_INT:
345 /* There may be some character types that attempt to come
346 through as TYPE_CODE_INT since dbxstclass.h is so
347 C-oriented, we must change these to "character" from "char". */
348
bde58177 349 if (strcmp (TYPE_NAME (type), "char") == 0)
2a5e440c 350 fprintfi_filtered (level, stream, "character");
c906108c
SS
351 else
352 goto default_case;
353 break;
354
c906108c 355 case TYPE_CODE_STRING:
0963b4bd 356 /* Strings may have dynamic upperbounds (lengths) like arrays. */
c906108c 357
d78df370 358 if (TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type))
2a5e440c 359 fprintfi_filtered (level, stream, "character*(*)");
c906108c
SS
360 else
361 {
d78df370
JK
362 upper_bound = f77_get_upperbound (type);
363 fprintf_filtered (stream, "character*%d", upper_bound);
c906108c
SS
364 }
365 break;
366
2a5e440c 367 case TYPE_CODE_STRUCT:
9eec4d1e
MD
368 case TYPE_CODE_UNION:
369 if (TYPE_CODE (type) == TYPE_CODE_UNION)
370 fprintfi_filtered (level, stream, "Type, C_Union :: ");
371 else
372 fprintfi_filtered (level, stream, "Type ");
2a5e440c 373 fputs_filtered (TYPE_TAG_NAME (type), stream);
9b2db1fd
BH
374 /* According to the definition,
375 we only print structure elements in case show > 0. */
376 if (show > 0)
2a5e440c 377 {
2a5e440c 378 fputs_filtered ("\n", stream);
9b2db1fd
BH
379 for (index = 0; index < TYPE_NFIELDS (type); index++)
380 {
e188eb36
BH
381 f_type_print_base (TYPE_FIELD_TYPE (type, index), stream,
382 show - 1, level + 4);
9b2db1fd
BH
383 fputs_filtered (" :: ", stream);
384 fputs_filtered (TYPE_FIELD_NAME (type, index), stream);
385 f_type_print_varspec_suffix (TYPE_FIELD_TYPE (type, index),
e188eb36 386 stream, show - 1, 0, 0, 0);
9b2db1fd
BH
387 fputs_filtered ("\n", stream);
388 }
389 fprintfi_filtered (level, stream, "End Type ");
390 fputs_filtered (TYPE_TAG_NAME (type), stream);
391 }
2a5e440c
WZ
392 break;
393
f55ee35c
JK
394 case TYPE_CODE_MODULE:
395 fprintfi_filtered (level, stream, "module %s", TYPE_TAG_NAME (type));
396 break;
397
c906108c
SS
398 default_case:
399 default:
400 /* Handle types not explicitly handled by the other cases,
c5aa993b
JM
401 such as fundamental types. For these, just print whatever
402 the type name is, as recorded in the type itself. If there
0963b4bd 403 is no type name, then complain. */
c906108c 404 if (TYPE_NAME (type) != NULL)
848359ac 405 fprintfi_filtered (level, stream, "%s", TYPE_NAME (type));
c906108c 406 else
8a3fe4f8 407 error (_("Invalid type code (%d) in symbol table."), TYPE_CODE (type));
c906108c
SS
408 break;
409 }
410}