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c906108c SS |
1 | /* Support for printing Chill types for GDB, the GNU debugger. |
2 | Copyright 1986, 1988, 1989, 1991 Free Software Foundation, Inc. | |
3 | ||
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
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 2 of the License, or | |
9 | (at your option) any later version. | |
c906108c | 10 | |
c5aa993b JM |
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. | |
c906108c | 15 | |
c5aa993b JM |
16 | You should have received a copy of the GNU General Public License |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
20 | |
21 | #include "defs.h" | |
22 | #include "obstack.h" | |
23 | #include "bfd.h" /* Binary File Description */ | |
24 | #include "symtab.h" | |
25 | #include "gdbtypes.h" | |
26 | #include "expression.h" | |
27 | #include "value.h" | |
28 | #include "gdbcore.h" | |
29 | #include "target.h" | |
30 | #include "command.h" | |
31 | #include "gdbcmd.h" | |
32 | #include "language.h" | |
33 | #include "demangle.h" | |
34 | #include "ch-lang.h" | |
35 | #include "typeprint.h" | |
36 | ||
37 | #include "gdb_string.h" | |
38 | #include <errno.h> | |
39 | ||
40 | static void | |
41 | chill_type_print_base PARAMS ((struct type *, GDB_FILE *, int, int)); | |
42 | ||
43 | void | |
44 | chill_print_type (type, varstring, stream, show, level) | |
45 | struct type *type; | |
46 | char *varstring; | |
47 | GDB_FILE *stream; | |
48 | int show; | |
49 | int level; | |
50 | { | |
51 | if (varstring != NULL && *varstring != '\0') | |
52 | { | |
53 | fputs_filtered (varstring, stream); | |
54 | fputs_filtered (" ", stream); | |
55 | } | |
56 | chill_type_print_base (type, stream, show, level); | |
57 | } | |
58 | ||
59 | /* Print the name of the type (or the ultimate pointer target, | |
60 | function value or array element). | |
61 | ||
62 | SHOW nonzero means don't print this type as just its name; | |
63 | show its real definition even if it has a name. | |
64 | SHOW zero means print just typename or tag if there is one | |
65 | SHOW negative means abbreviate structure elements. | |
66 | SHOW is decremented for printing of structure elements. | |
67 | ||
68 | LEVEL is the depth to indent by. | |
69 | We increase it for some recursive calls. */ | |
70 | ||
71 | static void | |
72 | chill_type_print_base (type, stream, show, level) | |
73 | struct type *type; | |
74 | GDB_FILE *stream; | |
75 | int show; | |
76 | int level; | |
77 | { | |
78 | register int len; | |
79 | register int i; | |
80 | struct type *index_type; | |
81 | struct type *range_type; | |
82 | LONGEST low_bound; | |
83 | LONGEST high_bound; | |
84 | ||
85 | QUIT; | |
86 | ||
87 | wrap_here (" "); | |
88 | if (type == NULL) | |
89 | { | |
90 | fputs_filtered ("<type unknown>", stream); | |
91 | return; | |
92 | } | |
93 | ||
94 | /* When SHOW is zero or less, and there is a valid type name, then always | |
95 | just print the type name directly from the type. */ | |
96 | ||
97 | if ((show <= 0) && (TYPE_NAME (type) != NULL)) | |
98 | { | |
99 | fputs_filtered (TYPE_NAME (type), stream); | |
100 | return; | |
101 | } | |
102 | ||
103 | if (TYPE_CODE (type) != TYPE_CODE_TYPEDEF) | |
104 | CHECK_TYPEDEF (type); | |
105 | ||
106 | switch (TYPE_CODE (type)) | |
107 | { | |
c5aa993b JM |
108 | case TYPE_CODE_TYPEDEF: |
109 | chill_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level); | |
110 | break; | |
111 | case TYPE_CODE_PTR: | |
112 | if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_VOID) | |
113 | { | |
114 | fprintf_filtered (stream, | |
115 | TYPE_NAME (type) ? TYPE_NAME (type) : "PTR"); | |
116 | break; | |
117 | } | |
118 | fprintf_filtered (stream, "REF "); | |
119 | chill_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level); | |
120 | break; | |
121 | ||
122 | case TYPE_CODE_BOOL: | |
123 | /* FIXME: we should probably just print the TYPE_NAME, in case | |
124 | anyone ever fixes the compiler to give us the real names | |
125 | in the presence of the chill equivalent of typedef (assuming | |
126 | there is one). */ | |
127 | fprintf_filtered (stream, | |
128 | TYPE_NAME (type) ? TYPE_NAME (type) : "BOOL"); | |
129 | break; | |
130 | ||
131 | case TYPE_CODE_ARRAY: | |
132 | fputs_filtered ("ARRAY (", stream); | |
133 | range_type = TYPE_FIELD_TYPE (type, 0); | |
134 | if (TYPE_CODE (range_type) != TYPE_CODE_RANGE) | |
135 | chill_print_type (range_type, "", stream, 0, level); | |
136 | else | |
137 | { | |
138 | index_type = TYPE_TARGET_TYPE (range_type); | |
139 | low_bound = TYPE_FIELD_BITPOS (range_type, 0); | |
140 | high_bound = TYPE_FIELD_BITPOS (range_type, 1); | |
141 | print_type_scalar (index_type, low_bound, stream); | |
142 | fputs_filtered (":", stream); | |
143 | print_type_scalar (index_type, high_bound, stream); | |
144 | } | |
145 | fputs_filtered (") ", stream); | |
146 | chill_print_type (TYPE_TARGET_TYPE (type), "", stream, 0, level); | |
147 | break; | |
148 | ||
149 | case TYPE_CODE_BITSTRING: | |
150 | fprintf_filtered (stream, "BOOLS (%d)", | |
151 | TYPE_FIELD_BITPOS (TYPE_FIELD_TYPE (type, 0), 1) + 1); | |
152 | break; | |
153 | ||
154 | case TYPE_CODE_SET: | |
155 | fputs_filtered ("POWERSET ", stream); | |
156 | chill_print_type (TYPE_INDEX_TYPE (type), "", stream, | |
157 | show - 1, level); | |
158 | break; | |
159 | ||
160 | case TYPE_CODE_STRING: | |
161 | range_type = TYPE_FIELD_TYPE (type, 0); | |
162 | index_type = TYPE_TARGET_TYPE (range_type); | |
163 | high_bound = TYPE_FIELD_BITPOS (range_type, 1); | |
164 | fputs_filtered ("CHARS (", stream); | |
165 | print_type_scalar (index_type, high_bound + 1, stream); | |
166 | fputs_filtered (")", stream); | |
167 | break; | |
168 | ||
169 | case TYPE_CODE_MEMBER: | |
170 | fprintf_filtered (stream, "MEMBER "); | |
171 | chill_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level); | |
172 | break; | |
173 | case TYPE_CODE_REF: | |
174 | fprintf_filtered (stream, "/*LOC*/ "); | |
175 | chill_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level); | |
176 | break; | |
177 | case TYPE_CODE_FUNC: | |
178 | fprintf_filtered (stream, "PROC ("); | |
179 | len = TYPE_NFIELDS (type); | |
180 | for (i = 0; i < len; i++) | |
181 | { | |
182 | struct type *param_type = TYPE_FIELD_TYPE (type, i); | |
183 | if (i > 0) | |
184 | { | |
185 | fputs_filtered (", ", stream); | |
186 | wrap_here (" "); | |
187 | } | |
188 | if (TYPE_CODE (param_type) == TYPE_CODE_REF) | |
189 | { | |
190 | chill_type_print_base (TYPE_TARGET_TYPE (param_type), | |
191 | stream, 0, level); | |
192 | fputs_filtered (" LOC", stream); | |
193 | } | |
194 | else | |
195 | chill_type_print_base (param_type, stream, show, level); | |
196 | } | |
197 | fprintf_filtered (stream, ")"); | |
198 | if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_VOID) | |
199 | { | |
200 | fputs_filtered (" RETURNS (", stream); | |
201 | chill_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level); | |
202 | fputs_filtered (")", stream); | |
203 | } | |
204 | break; | |
205 | ||
206 | case TYPE_CODE_STRUCT: | |
207 | if (chill_varying_type (type)) | |
208 | { | |
209 | chill_type_print_base (TYPE_FIELD_TYPE (type, 1), | |
210 | stream, 0, level); | |
211 | fputs_filtered (" VARYING", stream); | |
212 | } | |
213 | else | |
214 | { | |
215 | fprintf_filtered (stream, "STRUCT "); | |
216 | ||
217 | fprintf_filtered (stream, "(\n"); | |
218 | if ((TYPE_NFIELDS (type) == 0) && (TYPE_NFN_FIELDS (type) == 0)) | |
219 | { | |
220 | if (TYPE_FLAGS (type) & TYPE_FLAG_STUB) | |
221 | { | |
222 | fprintfi_filtered (level + 4, stream, "<incomplete type>\n"); | |
223 | } | |
224 | else | |
225 | { | |
226 | fprintfi_filtered (level + 4, stream, "<no data fields>\n"); | |
227 | } | |
228 | } | |
229 | else | |
230 | { | |
231 | len = TYPE_NFIELDS (type); | |
232 | for (i = TYPE_N_BASECLASSES (type); i < len; i++) | |
233 | { | |
234 | struct type *field_type = TYPE_FIELD_TYPE (type, i); | |
235 | QUIT; | |
236 | print_spaces_filtered (level + 4, stream); | |
237 | if (TYPE_CODE (field_type) == TYPE_CODE_UNION) | |
238 | { | |
239 | int j; /* variant number */ | |
240 | fputs_filtered ("CASE OF\n", stream); | |
241 | for (j = 0; j < TYPE_NFIELDS (field_type); j++) | |
242 | { | |
243 | int k; /* variant field index */ | |
244 | struct type *variant_type | |
245 | = TYPE_FIELD_TYPE (field_type, j); | |
246 | int var_len = TYPE_NFIELDS (variant_type); | |
247 | print_spaces_filtered (level + 4, stream); | |
248 | if (strcmp (TYPE_FIELD_NAME (field_type, j), | |
249 | "else") == 0) | |
250 | fputs_filtered ("ELSE\n", stream); | |
251 | else | |
252 | fputs_filtered (":\n", stream); | |
253 | if (TYPE_CODE (variant_type) != TYPE_CODE_STRUCT) | |
254 | error ("variant record confusion"); | |
255 | for (k = 0; k < var_len; k++) | |
256 | { | |
257 | print_spaces_filtered (level + 8, stream); | |
258 | chill_print_type (TYPE_FIELD_TYPE (variant_type, k), | |
259 | TYPE_FIELD_NAME (variant_type, k), | |
260 | stream, show - 1, level + 8); | |
261 | if (k < (var_len - 1)) | |
262 | fputs_filtered (",", stream); | |
263 | fputs_filtered ("\n", stream); | |
264 | } | |
265 | } | |
266 | print_spaces_filtered (level + 4, stream); | |
267 | fputs_filtered ("ESAC", stream); | |
268 | } | |
269 | else | |
270 | chill_print_type (field_type, | |
271 | TYPE_FIELD_NAME (type, i), | |
272 | stream, show - 1, level + 4); | |
273 | if (i < (len - 1)) | |
274 | { | |
275 | fputs_filtered (",", stream); | |
276 | } | |
277 | fputs_filtered ("\n", stream); | |
278 | } | |
279 | } | |
280 | fprintfi_filtered (level, stream, ")"); | |
281 | } | |
282 | break; | |
283 | ||
284 | case TYPE_CODE_RANGE: | |
285 | { | |
286 | struct type *target = TYPE_TARGET_TYPE (type); | |
287 | if (target && TYPE_NAME (target)) | |
288 | fputs_filtered (TYPE_NAME (target), stream); | |
c906108c | 289 | else |
c5aa993b JM |
290 | fputs_filtered ("RANGE", stream); |
291 | if (target == NULL) | |
292 | target = builtin_type_long; | |
293 | fputs_filtered (" (", stream); | |
294 | print_type_scalar (target, TYPE_LOW_BOUND (type), stream); | |
295 | fputs_filtered (":", stream); | |
296 | print_type_scalar (target, TYPE_HIGH_BOUND (type), stream); | |
c906108c | 297 | fputs_filtered (")", stream); |
c5aa993b JM |
298 | } |
299 | break; | |
300 | ||
301 | case TYPE_CODE_ENUM: | |
302 | { | |
303 | register int lastval = 0; | |
304 | fprintf_filtered (stream, "SET ("); | |
c906108c SS |
305 | len = TYPE_NFIELDS (type); |
306 | for (i = 0; i < len; i++) | |
307 | { | |
c5aa993b JM |
308 | QUIT; |
309 | if (i) | |
310 | fprintf_filtered (stream, ", "); | |
311 | wrap_here (" "); | |
312 | fputs_filtered (TYPE_FIELD_NAME (type, i), stream); | |
313 | if (lastval != TYPE_FIELD_BITPOS (type, i)) | |
c906108c | 314 | { |
c5aa993b JM |
315 | fprintf_filtered (stream, " = %d", TYPE_FIELD_BITPOS (type, i)); |
316 | lastval = TYPE_FIELD_BITPOS (type, i); | |
c906108c | 317 | } |
c5aa993b | 318 | lastval++; |
c906108c SS |
319 | } |
320 | fprintf_filtered (stream, ")"); | |
c5aa993b JM |
321 | } |
322 | break; | |
c906108c | 323 | |
c5aa993b JM |
324 | case TYPE_CODE_VOID: |
325 | case TYPE_CODE_UNDEF: | |
326 | case TYPE_CODE_ERROR: | |
327 | case TYPE_CODE_UNION: | |
328 | case TYPE_CODE_METHOD: | |
329 | error ("missing language support in chill_type_print_base"); | |
330 | break; | |
c906108c | 331 | |
c5aa993b | 332 | default: |
c906108c | 333 | |
c5aa993b JM |
334 | /* Handle types not explicitly handled by the other cases, |
335 | such as fundamental types. For these, just print whatever | |
336 | the type name is, as recorded in the type itself. If there | |
337 | is no type name, then complain. */ | |
c906108c | 338 | |
c5aa993b | 339 | if (TYPE_NAME (type) != NULL) |
c906108c | 340 | { |
c5aa993b | 341 | fputs_filtered (TYPE_NAME (type), stream); |
c906108c | 342 | } |
c5aa993b JM |
343 | else |
344 | { | |
345 | error ("Unrecognized type code (%d) in symbol table.", | |
346 | TYPE_CODE (type)); | |
347 | } | |
348 | break; | |
349 | } | |
c906108c | 350 | } |