File: | src/gnu/usr.bin/binutils/gdb/f-typeprint.c |
Warning: | line 195, column 2 Value stored to 'lower_bound_was_default' is never read |
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1 | /* Support for printing Fortran types for GDB, the GNU debugger. |
2 | |
3 | Copyright 1986, 1988, 1989, 1991, 1993, 1994, 1995, 1996, 1998, |
4 | 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
5 | |
6 | Contributed by Motorola. Adapted from the C version by Farooq Butt |
7 | (fmbutt@engage.sps.mot.com). |
8 | |
9 | This file is part of GDB. |
10 | |
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 |
13 | the Free Software Foundation; either version 2 of the License, or |
14 | (at your option) any later version. |
15 | |
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. |
20 | |
21 | You should have received a copy of the GNU General Public License |
22 | along with this program; if not, write to the Free Software |
23 | Foundation, Inc., 59 Temple Place - Suite 330, |
24 | Boston, MA 02111-1307, USA. */ |
25 | |
26 | #include "defs.h" |
27 | #include "gdb_obstack.h" |
28 | #include "bfd.h" |
29 | #include "symtab.h" |
30 | #include "gdbtypes.h" |
31 | #include "expression.h" |
32 | #include "value.h" |
33 | #include "gdbcore.h" |
34 | #include "target.h" |
35 | #include "f-lang.h" |
36 | |
37 | #include "gdb_string.h" |
38 | #include <errno(*__errno()).h> |
39 | |
40 | #if 0 /* Currently unused */ |
41 | static void f_type_print_args (struct type *, struct ui_file *); |
42 | #endif |
43 | |
44 | static void print_equivalent_f77_float_type (struct type *, |
45 | struct ui_file *); |
46 | |
47 | static void f_type_print_varspec_suffix (struct type *, struct ui_file *, |
48 | int, int, int); |
49 | |
50 | void f_type_print_varspec_prefix (struct type *, struct ui_file *, |
51 | int, int); |
52 | |
53 | void f_type_print_base (struct type *, struct ui_file *, int, int); |
54 | |
55 | |
56 | /* LEVEL is the depth to indent lines by. */ |
57 | |
58 | void |
59 | f_print_type (struct type *type, char *varstring, struct ui_file *stream, |
60 | int show, int level) |
61 | { |
62 | enum type_code code; |
63 | int demangled_args; |
64 | |
65 | f_type_print_base (type, stream, show, level); |
66 | code = TYPE_CODE (type)(type)->main_type->code; |
67 | if ((varstring != NULL((void*)0) && *varstring != '\0') |
68 | || |
69 | /* Need a space if going to print stars or brackets; |
70 | but not if we will print just a type name. */ |
71 | ((show > 0 || TYPE_NAME (type)(type)->main_type->name == 0) |
72 | && |
73 | (code == TYPE_CODE_PTR || code == TYPE_CODE_FUNC |
74 | || code == TYPE_CODE_METHOD |
75 | || code == TYPE_CODE_ARRAY |
76 | || code == TYPE_CODE_MEMBER |
77 | || code == TYPE_CODE_REF))) |
78 | fputs_filtered (" ", stream); |
79 | f_type_print_varspec_prefix (type, stream, show, 0); |
80 | |
81 | fputs_filtered (varstring, stream); |
82 | |
83 | /* For demangled function names, we have the arglist as part of the name, |
84 | so don't print an additional pair of ()'s */ |
85 | |
86 | demangled_args = varstring[strlen (varstring) - 1] == ')'; |
87 | f_type_print_varspec_suffix (type, stream, show, 0, demangled_args); |
88 | } |
89 | |
90 | /* Print any asterisks or open-parentheses needed before the |
91 | variable name (to describe its type). |
92 | |
93 | On outermost call, pass 0 for PASSED_A_PTR. |
94 | On outermost call, SHOW > 0 means should ignore |
95 | any typename for TYPE and show its details. |
96 | SHOW is always zero on recursive calls. */ |
97 | |
98 | void |
99 | f_type_print_varspec_prefix (struct type *type, struct ui_file *stream, |
100 | int show, int passed_a_ptr) |
101 | { |
102 | if (type == 0) |
103 | return; |
104 | |
105 | if (TYPE_NAME (type)(type)->main_type->name && show <= 0) |
106 | return; |
107 | |
108 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; |
109 | |
110 | switch (TYPE_CODE (type)(type)->main_type->code) |
111 | { |
112 | case TYPE_CODE_PTR: |
113 | f_type_print_varspec_prefix (TYPE_TARGET_TYPE (type)(type)->main_type->target_type, stream, 0, 1); |
114 | break; |
115 | |
116 | case TYPE_CODE_FUNC: |
117 | f_type_print_varspec_prefix (TYPE_TARGET_TYPE (type)(type)->main_type->target_type, stream, 0, 0); |
118 | if (passed_a_ptr) |
119 | fprintf_filtered (stream, "("); |
120 | break; |
121 | |
122 | case TYPE_CODE_ARRAY: |
123 | f_type_print_varspec_prefix (TYPE_TARGET_TYPE (type)(type)->main_type->target_type, stream, 0, 0); |
124 | break; |
125 | |
126 | case TYPE_CODE_UNDEF: |
127 | case TYPE_CODE_STRUCT: |
128 | case TYPE_CODE_UNION: |
129 | case TYPE_CODE_ENUM: |
130 | case TYPE_CODE_INT: |
131 | case TYPE_CODE_FLT: |
132 | case TYPE_CODE_VOID: |
133 | case TYPE_CODE_ERROR: |
134 | case TYPE_CODE_CHAR: |
135 | case TYPE_CODE_BOOL: |
136 | case TYPE_CODE_SET: |
137 | case TYPE_CODE_RANGE: |
138 | case TYPE_CODE_STRING: |
139 | case TYPE_CODE_BITSTRING: |
140 | case TYPE_CODE_METHOD: |
141 | case TYPE_CODE_MEMBER: |
142 | case TYPE_CODE_REF: |
143 | case TYPE_CODE_COMPLEX: |
144 | case TYPE_CODE_TYPEDEF: |
145 | /* These types need no prefix. They are listed here so that |
146 | gcc -Wall will reveal any types that haven't been handled. */ |
147 | break; |
148 | } |
149 | } |
150 | |
151 | /* Print any array sizes, function arguments or close parentheses |
152 | needed after the variable name (to describe its type). |
153 | Args work like c_type_print_varspec_prefix. */ |
154 | |
155 | static void |
156 | f_type_print_varspec_suffix (struct type *type, struct ui_file *stream, |
157 | int show, int passed_a_ptr, int demangled_args) |
158 | { |
159 | int upper_bound, lower_bound; |
160 | int lower_bound_was_default = 0; |
161 | static int arrayprint_recurse_level = 0; |
162 | int retcode; |
163 | |
164 | if (type == 0) |
165 | return; |
166 | |
167 | if (TYPE_NAME (type)(type)->main_type->name && show <= 0) |
168 | return; |
169 | |
170 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; |
171 | |
172 | switch (TYPE_CODE (type)(type)->main_type->code) |
173 | { |
174 | case TYPE_CODE_ARRAY: |
175 | arrayprint_recurse_level++; |
176 | |
177 | if (arrayprint_recurse_level == 1) |
178 | fprintf_filtered (stream, "("); |
179 | |
180 | if (TYPE_CODE (TYPE_TARGET_TYPE (type))((type)->main_type->target_type)->main_type->code == TYPE_CODE_ARRAY) |
181 | f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type)(type)->main_type->target_type, stream, 0, 0, 0); |
182 | |
183 | retcode = f77_get_dynamic_lowerbound (type, &lower_bound); |
184 | |
185 | lower_bound_was_default = 0; |
186 | |
187 | if (retcode == BOUND_FETCH_ERROR-999) |
188 | fprintf_filtered (stream, "???"); |
189 | else if (lower_bound == 1) /* The default */ |
190 | lower_bound_was_default = 1; |
191 | else |
192 | fprintf_filtered (stream, "%d", lower_bound); |
193 | |
194 | if (lower_bound_was_default) |
195 | lower_bound_was_default = 0; |
Value stored to 'lower_bound_was_default' is never read | |
196 | else |
197 | fprintf_filtered (stream, ":"); |
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_TYPE (type)(type)->main_type->upper_bound_type == BOUND_CANNOT_BE_DETERMINED) |
203 | fprintf_filtered (stream, "*"); |
204 | else |
205 | { |
206 | retcode = f77_get_dynamic_upperbound (type, &upper_bound); |
207 | |
208 | if (retcode == BOUND_FETCH_ERROR-999) |
209 | fprintf_filtered (stream, "???"); |
210 | else |
211 | fprintf_filtered (stream, "%d", upper_bound); |
212 | } |
213 | |
214 | if (TYPE_CODE (TYPE_TARGET_TYPE (type))((type)->main_type->target_type)->main_type->code != TYPE_CODE_ARRAY) |
215 | f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type)(type)->main_type->target_type, stream, 0, 0, 0); |
216 | if (arrayprint_recurse_level == 1) |
217 | fprintf_filtered (stream, ")"); |
218 | else |
219 | fprintf_filtered (stream, ","); |
220 | arrayprint_recurse_level--; |
221 | break; |
222 | |
223 | case TYPE_CODE_PTR: |
224 | case TYPE_CODE_REF: |
225 | f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type)(type)->main_type->target_type, stream, 0, 1, 0); |
226 | fprintf_filtered (stream, ")"); |
227 | break; |
228 | |
229 | case TYPE_CODE_FUNC: |
230 | f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type)(type)->main_type->target_type, stream, 0, |
231 | passed_a_ptr, 0); |
232 | if (passed_a_ptr) |
233 | fprintf_filtered (stream, ")"); |
234 | |
235 | fprintf_filtered (stream, "()"); |
236 | break; |
237 | |
238 | case TYPE_CODE_UNDEF: |
239 | case TYPE_CODE_STRUCT: |
240 | case TYPE_CODE_UNION: |
241 | case TYPE_CODE_ENUM: |
242 | case TYPE_CODE_INT: |
243 | case TYPE_CODE_FLT: |
244 | case TYPE_CODE_VOID: |
245 | case TYPE_CODE_ERROR: |
246 | case TYPE_CODE_CHAR: |
247 | case TYPE_CODE_BOOL: |
248 | case TYPE_CODE_SET: |
249 | case TYPE_CODE_RANGE: |
250 | case TYPE_CODE_STRING: |
251 | case TYPE_CODE_BITSTRING: |
252 | case TYPE_CODE_METHOD: |
253 | case TYPE_CODE_MEMBER: |
254 | case TYPE_CODE_COMPLEX: |
255 | case TYPE_CODE_TYPEDEF: |
256 | /* These types do not need a suffix. They are listed so that |
257 | gcc -Wall will report types that may not have been considered. */ |
258 | break; |
259 | } |
260 | } |
261 | |
262 | static void |
263 | print_equivalent_f77_float_type (struct type *type, struct ui_file *stream) |
264 | { |
265 | /* Override type name "float" and make it the |
266 | appropriate real. XLC stupidly outputs -12 as a type |
267 | for real when it really should be outputting -18 */ |
268 | |
269 | fprintf_filtered (stream, "real*%d", TYPE_LENGTH (type)(type)->length); |
270 | } |
271 | |
272 | /* Print the name of the type (or the ultimate pointer target, |
273 | function value or array element), or the description of a |
274 | structure or union. |
275 | |
276 | SHOW nonzero means don't print this type as just its name; |
277 | show its real definition even if it has a name. |
278 | SHOW zero means print just typename or struct tag if there is one |
279 | SHOW negative means abbreviate structure elements. |
280 | SHOW is decremented for printing of structure elements. |
281 | |
282 | LEVEL is the depth to indent by. |
283 | We increase it for some recursive calls. */ |
284 | |
285 | void |
286 | f_type_print_base (struct type *type, struct ui_file *stream, int show, |
287 | int level) |
288 | { |
289 | int retcode; |
290 | int upper_bound; |
291 | |
292 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; |
293 | |
294 | wrap_here (" "); |
295 | if (type == NULL((void*)0)) |
296 | { |
297 | fputs_filtered ("<type unknown>", stream); |
298 | return; |
299 | } |
300 | |
301 | /* When SHOW is zero or less, and there is a valid type name, then always |
302 | just print the type name directly from the type. */ |
303 | |
304 | if ((show <= 0) && (TYPE_NAME (type)(type)->main_type->name != NULL((void*)0))) |
305 | { |
306 | if (TYPE_CODE (type)(type)->main_type->code == TYPE_CODE_FLT) |
307 | print_equivalent_f77_float_type (type, stream); |
308 | else |
309 | fputs_filtered (TYPE_NAME (type)(type)->main_type->name, stream); |
310 | return; |
311 | } |
312 | |
313 | if (TYPE_CODE (type)(type)->main_type->code != TYPE_CODE_TYPEDEF) |
314 | CHECK_TYPEDEF (type)(type) = check_typedef (type); |
315 | |
316 | switch (TYPE_CODE (type)(type)->main_type->code) |
317 | { |
318 | case TYPE_CODE_TYPEDEF: |
319 | f_type_print_base (TYPE_TARGET_TYPE (type)(type)->main_type->target_type, stream, 0, level); |
320 | break; |
321 | |
322 | case TYPE_CODE_ARRAY: |
323 | case TYPE_CODE_FUNC: |
324 | f_type_print_base (TYPE_TARGET_TYPE (type)(type)->main_type->target_type, stream, show, level); |
325 | break; |
326 | |
327 | case TYPE_CODE_PTR: |
328 | fprintf_filtered (stream, "PTR TO -> ( "); |
329 | f_type_print_base (TYPE_TARGET_TYPE (type)(type)->main_type->target_type, stream, 0, level); |
330 | break; |
331 | |
332 | case TYPE_CODE_REF: |
333 | fprintf_filtered (stream, "REF TO -> ( "); |
334 | f_type_print_base (TYPE_TARGET_TYPE (type)(type)->main_type->target_type, stream, 0, level); |
335 | break; |
336 | |
337 | case TYPE_CODE_VOID: |
338 | fprintf_filtered (stream, "VOID"); |
339 | break; |
340 | |
341 | case TYPE_CODE_UNDEF: |
342 | fprintf_filtered (stream, "struct <unknown>"); |
343 | break; |
344 | |
345 | case TYPE_CODE_ERROR: |
346 | fprintf_filtered (stream, "<unknown type>"); |
347 | break; |
348 | |
349 | case TYPE_CODE_RANGE: |
350 | /* This should not occur */ |
351 | fprintf_filtered (stream, "<range type>"); |
352 | break; |
353 | |
354 | case TYPE_CODE_CHAR: |
355 | /* Override name "char" and make it "character" */ |
356 | fprintf_filtered (stream, "character"); |
357 | break; |
358 | |
359 | case TYPE_CODE_INT: |
360 | /* There may be some character types that attempt to come |
361 | through as TYPE_CODE_INT since dbxstclass.h is so |
362 | C-oriented, we must change these to "character" from "char". */ |
363 | |
364 | if (strcmp (TYPE_NAME (type)(type)->main_type->name, "char") == 0) |
365 | fprintf_filtered (stream, "character"); |
366 | else |
367 | goto default_case; |
368 | break; |
369 | |
370 | case TYPE_CODE_COMPLEX: |
371 | fprintf_filtered (stream, "complex*%d", TYPE_LENGTH (type)(type)->length); |
372 | break; |
373 | |
374 | case TYPE_CODE_FLT: |
375 | print_equivalent_f77_float_type (type, stream); |
376 | break; |
377 | |
378 | case TYPE_CODE_STRING: |
379 | /* Strings may have dynamic upperbounds (lengths) like arrays. */ |
380 | |
381 | if (TYPE_ARRAY_UPPER_BOUND_TYPE (type)(type)->main_type->upper_bound_type == BOUND_CANNOT_BE_DETERMINED) |
382 | fprintf_filtered (stream, "character*(*)"); |
383 | else |
384 | { |
385 | retcode = f77_get_dynamic_upperbound (type, &upper_bound); |
386 | |
387 | if (retcode == BOUND_FETCH_ERROR-999) |
388 | fprintf_filtered (stream, "character*???"); |
389 | else |
390 | fprintf_filtered (stream, "character*%d", upper_bound); |
391 | } |
392 | break; |
393 | |
394 | default_case: |
395 | default: |
396 | /* Handle types not explicitly handled by the other cases, |
397 | such as fundamental types. For these, just print whatever |
398 | the type name is, as recorded in the type itself. If there |
399 | is no type name, then complain. */ |
400 | if (TYPE_NAME (type)(type)->main_type->name != NULL((void*)0)) |
401 | fputs_filtered (TYPE_NAME (type)(type)->main_type->name, stream); |
402 | else |
403 | error ("Invalid type code (%d) in symbol table.", TYPE_CODE (type)(type)->main_type->code); |
404 | break; |
405 | } |
406 | } |