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c906108c | 1 | /* Support for printing Chill types for GDB, the GNU debugger. |
b6ba6518 KB |
2 | Copyright 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 2000 |
3 | Free Software Foundation, Inc. | |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b JM |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
21 | |
22 | #include "defs.h" | |
04ea0df1 | 23 | #include "gdb_obstack.h" |
c906108c SS |
24 | #include "bfd.h" /* Binary File Description */ |
25 | #include "symtab.h" | |
26 | #include "gdbtypes.h" | |
27 | #include "expression.h" | |
28 | #include "value.h" | |
29 | #include "gdbcore.h" | |
30 | #include "target.h" | |
c906108c | 31 | #include "language.h" |
c906108c SS |
32 | #include "ch-lang.h" |
33 | #include "typeprint.h" | |
34 | ||
35 | #include "gdb_string.h" | |
36 | #include <errno.h> | |
37 | ||
d9fcf2fb | 38 | static void chill_type_print_base (struct type *, struct ui_file *, int, int); |
c906108c SS |
39 | |
40 | void | |
fba45db2 KB |
41 | chill_print_type (struct type *type, char *varstring, struct ui_file *stream, |
42 | int show, int level) | |
c906108c SS |
43 | { |
44 | if (varstring != NULL && *varstring != '\0') | |
45 | { | |
46 | fputs_filtered (varstring, stream); | |
47 | fputs_filtered (" ", stream); | |
48 | } | |
49 | chill_type_print_base (type, stream, show, level); | |
50 | } | |
51 | ||
52 | /* Print the name of the type (or the ultimate pointer target, | |
53 | function value or array element). | |
54 | ||
55 | SHOW nonzero means don't print this type as just its name; | |
56 | show its real definition even if it has a name. | |
57 | SHOW zero means print just typename or tag if there is one | |
58 | SHOW negative means abbreviate structure elements. | |
59 | SHOW is decremented for printing of structure elements. | |
60 | ||
61 | LEVEL is the depth to indent by. | |
62 | We increase it for some recursive calls. */ | |
63 | ||
64 | static void | |
fba45db2 KB |
65 | chill_type_print_base (struct type *type, struct ui_file *stream, int show, |
66 | int level) | |
c906108c SS |
67 | { |
68 | register int len; | |
69 | register int i; | |
70 | struct type *index_type; | |
71 | struct type *range_type; | |
72 | LONGEST low_bound; | |
73 | LONGEST high_bound; | |
74 | ||
75 | QUIT; | |
76 | ||
77 | wrap_here (" "); | |
78 | if (type == NULL) | |
79 | { | |
80 | fputs_filtered ("<type unknown>", stream); | |
81 | return; | |
82 | } | |
83 | ||
84 | /* When SHOW is zero or less, and there is a valid type name, then always | |
85 | just print the type name directly from the type. */ | |
86 | ||
87 | if ((show <= 0) && (TYPE_NAME (type) != NULL)) | |
88 | { | |
89 | fputs_filtered (TYPE_NAME (type), stream); | |
90 | return; | |
91 | } | |
92 | ||
93 | if (TYPE_CODE (type) != TYPE_CODE_TYPEDEF) | |
94 | CHECK_TYPEDEF (type); | |
95 | ||
96 | switch (TYPE_CODE (type)) | |
97 | { | |
c5aa993b JM |
98 | case TYPE_CODE_TYPEDEF: |
99 | chill_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level); | |
100 | break; | |
101 | case TYPE_CODE_PTR: | |
102 | if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_VOID) | |
103 | { | |
104 | fprintf_filtered (stream, | |
105 | TYPE_NAME (type) ? TYPE_NAME (type) : "PTR"); | |
106 | break; | |
107 | } | |
108 | fprintf_filtered (stream, "REF "); | |
109 | chill_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level); | |
110 | break; | |
111 | ||
112 | case TYPE_CODE_BOOL: | |
113 | /* FIXME: we should probably just print the TYPE_NAME, in case | |
114 | anyone ever fixes the compiler to give us the real names | |
115 | in the presence of the chill equivalent of typedef (assuming | |
116 | there is one). */ | |
117 | fprintf_filtered (stream, | |
118 | TYPE_NAME (type) ? TYPE_NAME (type) : "BOOL"); | |
119 | break; | |
120 | ||
121 | case TYPE_CODE_ARRAY: | |
122 | fputs_filtered ("ARRAY (", stream); | |
123 | range_type = TYPE_FIELD_TYPE (type, 0); | |
124 | if (TYPE_CODE (range_type) != TYPE_CODE_RANGE) | |
125 | chill_print_type (range_type, "", stream, 0, level); | |
126 | else | |
127 | { | |
128 | index_type = TYPE_TARGET_TYPE (range_type); | |
129 | low_bound = TYPE_FIELD_BITPOS (range_type, 0); | |
130 | high_bound = TYPE_FIELD_BITPOS (range_type, 1); | |
131 | print_type_scalar (index_type, low_bound, stream); | |
132 | fputs_filtered (":", stream); | |
133 | print_type_scalar (index_type, high_bound, stream); | |
134 | } | |
135 | fputs_filtered (") ", stream); | |
136 | chill_print_type (TYPE_TARGET_TYPE (type), "", stream, 0, level); | |
137 | break; | |
138 | ||
139 | case TYPE_CODE_BITSTRING: | |
140 | fprintf_filtered (stream, "BOOLS (%d)", | |
141 | TYPE_FIELD_BITPOS (TYPE_FIELD_TYPE (type, 0), 1) + 1); | |
142 | break; | |
143 | ||
144 | case TYPE_CODE_SET: | |
145 | fputs_filtered ("POWERSET ", stream); | |
146 | chill_print_type (TYPE_INDEX_TYPE (type), "", stream, | |
147 | show - 1, level); | |
148 | break; | |
149 | ||
150 | case TYPE_CODE_STRING: | |
151 | range_type = TYPE_FIELD_TYPE (type, 0); | |
152 | index_type = TYPE_TARGET_TYPE (range_type); | |
153 | high_bound = TYPE_FIELD_BITPOS (range_type, 1); | |
154 | fputs_filtered ("CHARS (", stream); | |
155 | print_type_scalar (index_type, high_bound + 1, stream); | |
156 | fputs_filtered (")", stream); | |
157 | break; | |
158 | ||
159 | case TYPE_CODE_MEMBER: | |
160 | fprintf_filtered (stream, "MEMBER "); | |
161 | chill_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level); | |
162 | break; | |
163 | case TYPE_CODE_REF: | |
164 | fprintf_filtered (stream, "/*LOC*/ "); | |
165 | chill_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level); | |
166 | break; | |
167 | case TYPE_CODE_FUNC: | |
168 | fprintf_filtered (stream, "PROC ("); | |
169 | len = TYPE_NFIELDS (type); | |
170 | for (i = 0; i < len; i++) | |
171 | { | |
172 | struct type *param_type = TYPE_FIELD_TYPE (type, i); | |
173 | if (i > 0) | |
174 | { | |
175 | fputs_filtered (", ", stream); | |
176 | wrap_here (" "); | |
177 | } | |
178 | if (TYPE_CODE (param_type) == TYPE_CODE_REF) | |
179 | { | |
180 | chill_type_print_base (TYPE_TARGET_TYPE (param_type), | |
181 | stream, 0, level); | |
182 | fputs_filtered (" LOC", stream); | |
183 | } | |
184 | else | |
185 | chill_type_print_base (param_type, stream, show, level); | |
186 | } | |
187 | fprintf_filtered (stream, ")"); | |
188 | if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_VOID) | |
189 | { | |
190 | fputs_filtered (" RETURNS (", stream); | |
191 | chill_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level); | |
192 | fputs_filtered (")", stream); | |
193 | } | |
194 | break; | |
195 | ||
196 | case TYPE_CODE_STRUCT: | |
197 | if (chill_varying_type (type)) | |
198 | { | |
199 | chill_type_print_base (TYPE_FIELD_TYPE (type, 1), | |
200 | stream, 0, level); | |
201 | fputs_filtered (" VARYING", stream); | |
202 | } | |
203 | else | |
204 | { | |
205 | fprintf_filtered (stream, "STRUCT "); | |
206 | ||
207 | fprintf_filtered (stream, "(\n"); | |
208 | if ((TYPE_NFIELDS (type) == 0) && (TYPE_NFN_FIELDS (type) == 0)) | |
209 | { | |
74a9bb82 | 210 | if (TYPE_STUB (type)) |
c5aa993b JM |
211 | { |
212 | fprintfi_filtered (level + 4, stream, "<incomplete type>\n"); | |
213 | } | |
214 | else | |
215 | { | |
216 | fprintfi_filtered (level + 4, stream, "<no data fields>\n"); | |
217 | } | |
218 | } | |
219 | else | |
220 | { | |
221 | len = TYPE_NFIELDS (type); | |
222 | for (i = TYPE_N_BASECLASSES (type); i < len; i++) | |
223 | { | |
224 | struct type *field_type = TYPE_FIELD_TYPE (type, i); | |
225 | QUIT; | |
226 | print_spaces_filtered (level + 4, stream); | |
227 | if (TYPE_CODE (field_type) == TYPE_CODE_UNION) | |
228 | { | |
229 | int j; /* variant number */ | |
230 | fputs_filtered ("CASE OF\n", stream); | |
231 | for (j = 0; j < TYPE_NFIELDS (field_type); j++) | |
232 | { | |
233 | int k; /* variant field index */ | |
234 | struct type *variant_type | |
235 | = TYPE_FIELD_TYPE (field_type, j); | |
236 | int var_len = TYPE_NFIELDS (variant_type); | |
237 | print_spaces_filtered (level + 4, stream); | |
238 | if (strcmp (TYPE_FIELD_NAME (field_type, j), | |
239 | "else") == 0) | |
240 | fputs_filtered ("ELSE\n", stream); | |
241 | else | |
242 | fputs_filtered (":\n", stream); | |
243 | if (TYPE_CODE (variant_type) != TYPE_CODE_STRUCT) | |
244 | error ("variant record confusion"); | |
245 | for (k = 0; k < var_len; k++) | |
246 | { | |
247 | print_spaces_filtered (level + 8, stream); | |
248 | chill_print_type (TYPE_FIELD_TYPE (variant_type, k), | |
249 | TYPE_FIELD_NAME (variant_type, k), | |
250 | stream, show - 1, level + 8); | |
251 | if (k < (var_len - 1)) | |
252 | fputs_filtered (",", stream); | |
253 | fputs_filtered ("\n", stream); | |
254 | } | |
255 | } | |
256 | print_spaces_filtered (level + 4, stream); | |
257 | fputs_filtered ("ESAC", stream); | |
258 | } | |
259 | else | |
260 | chill_print_type (field_type, | |
261 | TYPE_FIELD_NAME (type, i), | |
262 | stream, show - 1, level + 4); | |
263 | if (i < (len - 1)) | |
264 | { | |
265 | fputs_filtered (",", stream); | |
266 | } | |
267 | fputs_filtered ("\n", stream); | |
268 | } | |
269 | } | |
270 | fprintfi_filtered (level, stream, ")"); | |
271 | } | |
272 | break; | |
273 | ||
274 | case TYPE_CODE_RANGE: | |
275 | { | |
276 | struct type *target = TYPE_TARGET_TYPE (type); | |
277 | if (target && TYPE_NAME (target)) | |
278 | fputs_filtered (TYPE_NAME (target), stream); | |
c906108c | 279 | else |
c5aa993b JM |
280 | fputs_filtered ("RANGE", stream); |
281 | if (target == NULL) | |
282 | target = builtin_type_long; | |
283 | fputs_filtered (" (", stream); | |
284 | print_type_scalar (target, TYPE_LOW_BOUND (type), stream); | |
285 | fputs_filtered (":", stream); | |
286 | print_type_scalar (target, TYPE_HIGH_BOUND (type), stream); | |
c906108c | 287 | fputs_filtered (")", stream); |
c5aa993b JM |
288 | } |
289 | break; | |
290 | ||
291 | case TYPE_CODE_ENUM: | |
292 | { | |
293 | register int lastval = 0; | |
294 | fprintf_filtered (stream, "SET ("); | |
c906108c SS |
295 | len = TYPE_NFIELDS (type); |
296 | for (i = 0; i < len; i++) | |
297 | { | |
c5aa993b JM |
298 | QUIT; |
299 | if (i) | |
300 | fprintf_filtered (stream, ", "); | |
301 | wrap_here (" "); | |
302 | fputs_filtered (TYPE_FIELD_NAME (type, i), stream); | |
303 | if (lastval != TYPE_FIELD_BITPOS (type, i)) | |
c906108c | 304 | { |
c5aa993b JM |
305 | fprintf_filtered (stream, " = %d", TYPE_FIELD_BITPOS (type, i)); |
306 | lastval = TYPE_FIELD_BITPOS (type, i); | |
c906108c | 307 | } |
c5aa993b | 308 | lastval++; |
c906108c SS |
309 | } |
310 | fprintf_filtered (stream, ")"); | |
c5aa993b JM |
311 | } |
312 | break; | |
c906108c | 313 | |
c5aa993b JM |
314 | case TYPE_CODE_VOID: |
315 | case TYPE_CODE_UNDEF: | |
316 | case TYPE_CODE_ERROR: | |
317 | case TYPE_CODE_UNION: | |
318 | case TYPE_CODE_METHOD: | |
319 | error ("missing language support in chill_type_print_base"); | |
320 | break; | |
c906108c | 321 | |
c5aa993b | 322 | default: |
c906108c | 323 | |
c5aa993b JM |
324 | /* Handle types not explicitly handled by the other cases, |
325 | such as fundamental types. For these, just print whatever | |
326 | the type name is, as recorded in the type itself. If there | |
327 | is no type name, then complain. */ | |
c906108c | 328 | |
c5aa993b | 329 | if (TYPE_NAME (type) != NULL) |
c906108c | 330 | { |
c5aa993b | 331 | fputs_filtered (TYPE_NAME (type), stream); |
c906108c | 332 | } |
c5aa993b JM |
333 | else |
334 | { | |
335 | error ("Unrecognized type code (%d) in symbol table.", | |
336 | TYPE_CODE (type)); | |
337 | } | |
338 | break; | |
339 | } | |
c906108c | 340 | } |