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c906108c 1/* Support for printing Fortran types for GDB, the GNU debugger.
1bac305b 2
6aba47ca 3 Copyright (C) 1986, 1988, 1989, 1991, 1993, 1994, 1995, 1996, 1998, 2000,
0fb0cc75 4 2001, 2002, 2003, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
1bac305b 5
c906108c
SS
6 Contributed by Motorola. Adapted from the C version by Farooq Butt
7 (fmbutt@engage.sps.mot.com).
8
c5aa993b 9 This file is part of GDB.
c906108c 10
c5aa993b
JM
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
a9762ec7 13 the Free Software Foundation; either version 3 of the License, or
c5aa993b 14 (at your option) any later version.
c906108c 15
c5aa993b
JM
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
c906108c 20
c5aa993b 21 You should have received a copy of the GNU General Public License
a9762ec7 22 along with this program. If not, see <http://www.gnu.org/licenses/>. */
c906108c
SS
23
24#include "defs.h"
04ea0df1 25#include "gdb_obstack.h"
c906108c
SS
26#include "bfd.h"
27#include "symtab.h"
28#include "gdbtypes.h"
29#include "expression.h"
30#include "value.h"
31#include "gdbcore.h"
32#include "target.h"
c906108c 33#include "f-lang.h"
c906108c
SS
34
35#include "gdb_string.h"
36#include <errno.h>
37
c5aa993b 38#if 0 /* Currently unused */
d9fcf2fb 39static void f_type_print_args (struct type *, struct ui_file *);
c906108c
SS
40#endif
41
0311118f 42static void f_type_print_varspec_suffix (struct type *, struct ui_file *, int,
d9fcf2fb 43 int, int, int);
c906108c 44
d9fcf2fb
JM
45void f_type_print_varspec_prefix (struct type *, struct ui_file *,
46 int, int);
c906108c 47
d9fcf2fb 48void f_type_print_base (struct type *, struct ui_file *, int, int);
c906108c 49\f
c5aa993b 50
c906108c
SS
51/* LEVEL is the depth to indent lines by. */
52
53void
fba45db2
KB
54f_print_type (struct type *type, char *varstring, struct ui_file *stream,
55 int show, int level)
c906108c 56{
52f0bd74 57 enum type_code code;
c906108c
SS
58 int demangled_args;
59
60 f_type_print_base (type, stream, show, level);
61 code = TYPE_CODE (type);
62 if ((varstring != NULL && *varstring != '\0')
63 ||
c5aa993b
JM
64 /* Need a space if going to print stars or brackets;
65 but not if we will print just a type name. */
c906108c
SS
66 ((show > 0 || TYPE_NAME (type) == 0)
67 &&
68 (code == TYPE_CODE_PTR || code == TYPE_CODE_FUNC
69 || code == TYPE_CODE_METHOD
70 || code == TYPE_CODE_ARRAY
c906108c
SS
71 || code == TYPE_CODE_REF)))
72 fputs_filtered (" ", stream);
73 f_type_print_varspec_prefix (type, stream, show, 0);
74
a7dfd010
MD
75 if (varstring != NULL)
76 {
77 fputs_filtered (varstring, stream);
c906108c 78
a7dfd010
MD
79 /* For demangled function names, we have the arglist as part of the name,
80 so don't print an additional pair of ()'s */
c906108c 81
a7dfd010 82 demangled_args = varstring[strlen (varstring) - 1] == ')';
0311118f 83 f_type_print_varspec_suffix (type, stream, show, 0, demangled_args, 0);
a7dfd010 84 }
c906108c
SS
85}
86
87/* Print any asterisks or open-parentheses needed before the
88 variable name (to describe its type).
89
90 On outermost call, pass 0 for PASSED_A_PTR.
91 On outermost call, SHOW > 0 means should ignore
92 any typename for TYPE and show its details.
93 SHOW is always zero on recursive calls. */
94
95void
fba45db2
KB
96f_type_print_varspec_prefix (struct type *type, struct ui_file *stream,
97 int show, int passed_a_ptr)
c906108c
SS
98{
99 if (type == 0)
100 return;
101
102 if (TYPE_NAME (type) && show <= 0)
103 return;
104
105 QUIT;
106
107 switch (TYPE_CODE (type))
108 {
109 case TYPE_CODE_PTR:
110 f_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 1);
111 break;
112
113 case TYPE_CODE_FUNC:
114 f_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0);
115 if (passed_a_ptr)
116 fprintf_filtered (stream, "(");
117 break;
118
119 case TYPE_CODE_ARRAY:
120 f_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0);
121 break;
122
123 case TYPE_CODE_UNDEF:
124 case TYPE_CODE_STRUCT:
125 case TYPE_CODE_UNION:
126 case TYPE_CODE_ENUM:
127 case TYPE_CODE_INT:
128 case TYPE_CODE_FLT:
129 case TYPE_CODE_VOID:
130 case TYPE_CODE_ERROR:
131 case TYPE_CODE_CHAR:
132 case TYPE_CODE_BOOL:
133 case TYPE_CODE_SET:
134 case TYPE_CODE_RANGE:
135 case TYPE_CODE_STRING:
136 case TYPE_CODE_BITSTRING:
137 case TYPE_CODE_METHOD:
c906108c
SS
138 case TYPE_CODE_REF:
139 case TYPE_CODE_COMPLEX:
140 case TYPE_CODE_TYPEDEF:
141 /* These types need no prefix. They are listed here so that
c5aa993b 142 gcc -Wall will reveal any types that haven't been handled. */
c906108c
SS
143 break;
144 }
145}
146
c906108c
SS
147/* Print any array sizes, function arguments or close parentheses
148 needed after the variable name (to describe its type).
149 Args work like c_type_print_varspec_prefix. */
150
151static void
fba45db2 152f_type_print_varspec_suffix (struct type *type, struct ui_file *stream,
0311118f
JK
153 int show, int passed_a_ptr, int demangled_args,
154 int arrayprint_recurse_level)
c906108c
SS
155{
156 int upper_bound, lower_bound;
c906108c 157 int retcode;
0311118f
JK
158 /* No static variables are permitted as an error call may occur during
159 execution of this function. */
c906108c
SS
160
161 if (type == 0)
162 return;
163
164 if (TYPE_NAME (type) && show <= 0)
165 return;
166
167 QUIT;
168
169 switch (TYPE_CODE (type))
170 {
171 case TYPE_CODE_ARRAY:
172 arrayprint_recurse_level++;
173
174 if (arrayprint_recurse_level == 1)
c5aa993b 175 fprintf_filtered (stream, "(");
c906108c
SS
176
177 if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_ARRAY)
0311118f
JK
178 f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 0, 0,
179 arrayprint_recurse_level);
c906108c 180
d78df370
JK
181 lower_bound = f77_get_lowerbound (type);
182 if (lower_bound != 1) /* Not the default. */
183 fprintf_filtered (stream, "%d:", lower_bound);
c906108c
SS
184
185 /* Make sure that, if we have an assumed size array, we
c5aa993b 186 print out a warning and print the upperbound as '*' */
c906108c 187
d78df370 188 if (TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type))
c906108c 189 fprintf_filtered (stream, "*");
c5aa993b
JM
190 else
191 {
d78df370
JK
192 upper_bound = f77_get_upperbound (type);
193 fprintf_filtered (stream, "%d", upper_bound);
c5aa993b 194 }
c906108c
SS
195
196 if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_ARRAY)
0311118f
JK
197 f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 0, 0,
198 arrayprint_recurse_level);
c906108c
SS
199 if (arrayprint_recurse_level == 1)
200 fprintf_filtered (stream, ")");
201 else
c5aa993b 202 fprintf_filtered (stream, ",");
c906108c
SS
203 arrayprint_recurse_level--;
204 break;
205
206 case TYPE_CODE_PTR:
207 case TYPE_CODE_REF:
0311118f
JK
208 f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 1, 0,
209 arrayprint_recurse_level);
c5aa993b 210 fprintf_filtered (stream, ")");
c906108c
SS
211 break;
212
213 case TYPE_CODE_FUNC:
214 f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0,
0311118f 215 passed_a_ptr, 0, arrayprint_recurse_level);
c906108c
SS
216 if (passed_a_ptr)
217 fprintf_filtered (stream, ")");
218
219 fprintf_filtered (stream, "()");
220 break;
221
222 case TYPE_CODE_UNDEF:
223 case TYPE_CODE_STRUCT:
224 case TYPE_CODE_UNION:
225 case TYPE_CODE_ENUM:
226 case TYPE_CODE_INT:
227 case TYPE_CODE_FLT:
228 case TYPE_CODE_VOID:
229 case TYPE_CODE_ERROR:
230 case TYPE_CODE_CHAR:
231 case TYPE_CODE_BOOL:
232 case TYPE_CODE_SET:
233 case TYPE_CODE_RANGE:
234 case TYPE_CODE_STRING:
235 case TYPE_CODE_BITSTRING:
236 case TYPE_CODE_METHOD:
c906108c
SS
237 case TYPE_CODE_COMPLEX:
238 case TYPE_CODE_TYPEDEF:
239 /* These types do not need a suffix. They are listed so that
c5aa993b 240 gcc -Wall will report types that may not have been considered. */
c906108c
SS
241 break;
242 }
243}
244
c906108c
SS
245/* Print the name of the type (or the ultimate pointer target,
246 function value or array element), or the description of a
247 structure or union.
248
249 SHOW nonzero means don't print this type as just its name;
250 show its real definition even if it has a name.
251 SHOW zero means print just typename or struct tag if there is one
252 SHOW negative means abbreviate structure elements.
253 SHOW is decremented for printing of structure elements.
254
255 LEVEL is the depth to indent by.
256 We increase it for some recursive calls. */
257
258void
fba45db2
KB
259f_type_print_base (struct type *type, struct ui_file *stream, int show,
260 int level)
c906108c
SS
261{
262 int retcode;
263 int upper_bound;
264
2a5e440c
WZ
265 int index;
266
c906108c
SS
267 QUIT;
268
269 wrap_here (" ");
270 if (type == NULL)
271 {
272 fputs_filtered ("<type unknown>", stream);
273 return;
274 }
275
276 /* When SHOW is zero or less, and there is a valid type name, then always
277 just print the type name directly from the type. */
278
279 if ((show <= 0) && (TYPE_NAME (type) != NULL))
280 {
c244f7a6 281 fputs_filtered (TYPE_NAME (type), stream);
c906108c
SS
282 return;
283 }
284
285 if (TYPE_CODE (type) != TYPE_CODE_TYPEDEF)
286 CHECK_TYPEDEF (type);
287
288 switch (TYPE_CODE (type))
289 {
290 case TYPE_CODE_TYPEDEF:
291 f_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level);
292 break;
293
294 case TYPE_CODE_ARRAY:
295 case TYPE_CODE_FUNC:
296 f_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
297 break;
298
c5aa993b 299 case TYPE_CODE_PTR:
c906108c
SS
300 fprintf_filtered (stream, "PTR TO -> ( ");
301 f_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level);
7e86466e
RH
302 break;
303
304 case TYPE_CODE_REF:
305 fprintf_filtered (stream, "REF TO -> ( ");
306 f_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level);
c906108c
SS
307 break;
308
309 case TYPE_CODE_VOID:
2a5e440c 310 fprintfi_filtered (level, stream, "VOID");
c906108c
SS
311 break;
312
313 case TYPE_CODE_UNDEF:
2a5e440c 314 fprintfi_filtered (level, stream, "struct <unknown>");
c906108c
SS
315 break;
316
317 case TYPE_CODE_ERROR:
2a5e440c 318 fprintfi_filtered (level, stream, "<unknown type>");
c906108c
SS
319 break;
320
321 case TYPE_CODE_RANGE:
322 /* This should not occur */
2a5e440c 323 fprintfi_filtered (level, stream, "<range type>");
c906108c
SS
324 break;
325
326 case TYPE_CODE_CHAR:
327 /* Override name "char" and make it "character" */
2a5e440c 328 fprintfi_filtered (level, stream, "character");
c906108c
SS
329 break;
330
331 case TYPE_CODE_INT:
332 /* There may be some character types that attempt to come
333 through as TYPE_CODE_INT since dbxstclass.h is so
334 C-oriented, we must change these to "character" from "char". */
335
bde58177 336 if (strcmp (TYPE_NAME (type), "char") == 0)
2a5e440c 337 fprintfi_filtered (level, stream, "character");
c906108c
SS
338 else
339 goto default_case;
340 break;
341
c906108c
SS
342 case TYPE_CODE_STRING:
343 /* Strings may have dynamic upperbounds (lengths) like arrays. */
344
d78df370 345 if (TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type))
2a5e440c 346 fprintfi_filtered (level, stream, "character*(*)");
c906108c
SS
347 else
348 {
d78df370
JK
349 upper_bound = f77_get_upperbound (type);
350 fprintf_filtered (stream, "character*%d", upper_bound);
c906108c
SS
351 }
352 break;
353
2a5e440c 354 case TYPE_CODE_STRUCT:
9eec4d1e
MD
355 case TYPE_CODE_UNION:
356 if (TYPE_CODE (type) == TYPE_CODE_UNION)
357 fprintfi_filtered (level, stream, "Type, C_Union :: ");
358 else
359 fprintfi_filtered (level, stream, "Type ");
2a5e440c
WZ
360 fputs_filtered (TYPE_TAG_NAME (type), stream);
361 fputs_filtered ("\n", stream);
362 for (index = 0; index < TYPE_NFIELDS (type); index++)
363 {
9eec4d1e
MD
364 f_type_print_base (TYPE_FIELD_TYPE (type, index), stream, show,
365 level + 4);
2a5e440c 366 fputs_filtered (" :: ", stream);
60023297 367 fputs_filtered (TYPE_FIELD_NAME (type, index), stream);
9eec4d1e 368 f_type_print_varspec_suffix (TYPE_FIELD_TYPE (type, index),
0311118f 369 stream, 0, 0, 0, 0);
2a5e440c
WZ
370 fputs_filtered ("\n", stream);
371 }
372 fprintfi_filtered (level, stream, "End Type ");
373 fputs_filtered (TYPE_TAG_NAME (type), stream);
374 break;
375
c906108c
SS
376 default_case:
377 default:
378 /* Handle types not explicitly handled by the other cases,
c5aa993b
JM
379 such as fundamental types. For these, just print whatever
380 the type name is, as recorded in the type itself. If there
381 is no type name, then complain. */
c906108c 382 if (TYPE_NAME (type) != NULL)
848359ac 383 fprintfi_filtered (level, stream, "%s", TYPE_NAME (type));
c906108c 384 else
8a3fe4f8 385 error (_("Invalid type code (%d) in symbol table."), TYPE_CODE (type));
c906108c
SS
386 break;
387 }
388}