Commit | Line | Data |
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c906108c | 1 | /* Support for printing Java types for GDB, the GNU debugger. |
b6ba6518 | 2 | Copyright 1997, 1998, 1999, 2000 Free Software Foundation, Inc. |
c906108c | 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 | ||
22 | #include "defs.h" | |
23 | #include "symtab.h" | |
24 | #include "gdbtypes.h" | |
25 | #include "value.h" | |
26 | #include "demangle.h" | |
27 | #include "jv-lang.h" | |
28 | #include "gdb_string.h" | |
29 | #include "typeprint.h" | |
7a292a7a | 30 | #include "c-lang.h" |
c906108c | 31 | |
392a587b JM |
32 | /* Local functions */ |
33 | ||
d9fcf2fb JM |
34 | static void java_type_print_base (struct type * type, |
35 | struct ui_file *stream, int show, | |
36 | int level); | |
392a587b | 37 | |
c906108c | 38 | static void |
fba45db2 | 39 | java_type_print_derivation_info (struct ui_file *stream, struct type *type) |
c906108c SS |
40 | { |
41 | char *name; | |
42 | int i; | |
43 | int n_bases; | |
44 | int prev; | |
45 | ||
46 | n_bases = TYPE_N_BASECLASSES (type); | |
47 | ||
48 | for (i = 0, prev = 0; i < n_bases; i++) | |
49 | { | |
50 | int kind; | |
51 | ||
c5aa993b | 52 | kind = BASETYPE_VIA_VIRTUAL (type, i) ? 'I' : 'E'; |
c906108c SS |
53 | |
54 | fputs_filtered (kind == prev ? ", " | |
55 | : kind == 'I' ? " implements " | |
56 | : " extends ", | |
57 | stream); | |
58 | prev = kind; | |
59 | name = type_name_no_tag (TYPE_BASECLASS (type, i)); | |
60 | ||
61 | fprintf_filtered (stream, "%s", name ? name : "(null)"); | |
62 | } | |
63 | ||
64 | if (i > 0) | |
65 | fputs_filtered (" ", stream); | |
66 | } | |
67 | ||
68 | /* Print the name of the type (or the ultimate pointer target, | |
69 | function value or array element), or the description of a | |
70 | structure or union. | |
71 | ||
72 | SHOW positive means print details about the type (e.g. enum values), | |
73 | and print structure elements passing SHOW - 1 for show. | |
74 | SHOW negative means just print the type name or struct tag if there is one. | |
75 | If there is no name, print something sensible but concise like | |
76 | "struct {...}". | |
77 | SHOW zero means just print the type name or struct tag if there is one. | |
78 | If there is no name, print something sensible but not as concise like | |
79 | "struct {int x; int y;}". | |
80 | ||
81 | LEVEL is the number of spaces to indent by. | |
82 | We increase it for some recursive calls. */ | |
83 | ||
392a587b | 84 | static void |
fba45db2 KB |
85 | java_type_print_base (struct type *type, struct ui_file *stream, int show, |
86 | int level) | |
c906108c SS |
87 | { |
88 | register int i; | |
89 | register int len; | |
90 | char *mangled_name; | |
91 | char *demangled_name; | |
92 | QUIT; | |
93 | ||
94 | wrap_here (" "); | |
95 | ||
96 | if (type == NULL) | |
97 | { | |
98 | fputs_filtered ("<type unknown>", stream); | |
99 | return; | |
100 | } | |
101 | ||
102 | /* When SHOW is zero or less, and there is a valid type name, then always | |
103 | just print the type name directly from the type. */ | |
104 | ||
105 | if (show <= 0 | |
106 | && TYPE_NAME (type) != NULL) | |
107 | { | |
108 | fputs_filtered (TYPE_NAME (type), stream); | |
109 | return; | |
110 | } | |
111 | ||
112 | CHECK_TYPEDEF (type); | |
113 | ||
114 | switch (TYPE_CODE (type)) | |
115 | { | |
116 | case TYPE_CODE_PTR: | |
117 | java_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level); | |
118 | break; | |
119 | ||
120 | case TYPE_CODE_STRUCT: | |
121 | if (TYPE_TAG_NAME (type) != NULL && TYPE_TAG_NAME (type)[0] == '[') | |
122 | { /* array type */ | |
123 | char *name = java_demangle_type_signature (TYPE_TAG_NAME (type)); | |
124 | fputs_filtered (name, stream); | |
b8c9b27d | 125 | xfree (name); |
c906108c SS |
126 | break; |
127 | } | |
128 | ||
129 | if (show >= 0) | |
130 | fprintf_filtered (stream, "class "); | |
131 | ||
132 | if (TYPE_TAG_NAME (type) != NULL) | |
133 | { | |
134 | fputs_filtered (TYPE_TAG_NAME (type), stream); | |
135 | if (show > 0) | |
136 | fputs_filtered (" ", stream); | |
137 | } | |
138 | ||
139 | wrap_here (" "); | |
140 | ||
141 | if (show < 0) | |
142 | { | |
143 | /* If we just printed a tag name, no need to print anything else. */ | |
144 | if (TYPE_TAG_NAME (type) == NULL) | |
145 | fprintf_filtered (stream, "{...}"); | |
146 | } | |
147 | else if (show > 0 || TYPE_TAG_NAME (type) == NULL) | |
148 | { | |
149 | java_type_print_derivation_info (stream, type); | |
c5aa993b | 150 | |
c906108c SS |
151 | fprintf_filtered (stream, "{\n"); |
152 | if ((TYPE_NFIELDS (type) == 0) && (TYPE_NFN_FIELDS (type) == 0)) | |
7a292a7a SS |
153 | { |
154 | if (TYPE_FLAGS (type) & TYPE_FLAG_STUB) | |
155 | fprintfi_filtered (level + 4, stream, "<incomplete type>\n"); | |
156 | else | |
157 | fprintfi_filtered (level + 4, stream, "<no data fields>\n"); | |
158 | } | |
c906108c SS |
159 | |
160 | /* If there is a base class for this type, | |
161 | do not print the field that it occupies. */ | |
162 | ||
163 | len = TYPE_NFIELDS (type); | |
164 | for (i = TYPE_N_BASECLASSES (type); i < len; i++) | |
165 | { | |
166 | QUIT; | |
167 | /* Don't print out virtual function table. */ | |
168 | if (STREQN (TYPE_FIELD_NAME (type, i), "_vptr", 5) | |
169 | && is_cplus_marker ((TYPE_FIELD_NAME (type, i))[5])) | |
170 | continue; | |
171 | ||
172 | /* Don't print the dummy field "class". */ | |
173 | if (STREQN (TYPE_FIELD_NAME (type, i), "class", 5)) | |
174 | continue; | |
175 | ||
176 | print_spaces_filtered (level + 4, stream); | |
177 | ||
178 | if (HAVE_CPLUS_STRUCT (type)) | |
7a292a7a SS |
179 | { |
180 | if (TYPE_FIELD_PROTECTED (type, i)) | |
181 | fprintf_filtered (stream, "protected "); | |
182 | else if (TYPE_FIELD_PRIVATE (type, i)) | |
183 | fprintf_filtered (stream, "private "); | |
184 | else | |
185 | fprintf_filtered (stream, "public "); | |
186 | } | |
c906108c SS |
187 | |
188 | if (TYPE_FIELD_STATIC (type, i)) | |
189 | fprintf_filtered (stream, "static "); | |
190 | ||
191 | java_print_type (TYPE_FIELD_TYPE (type, i), | |
192 | TYPE_FIELD_NAME (type, i), | |
193 | stream, show - 1, level + 4); | |
194 | ||
195 | fprintf_filtered (stream, ";\n"); | |
196 | } | |
197 | ||
198 | /* If there are both fields and methods, put a space between. */ | |
199 | len = TYPE_NFN_FIELDS (type); | |
200 | if (len) | |
c5aa993b | 201 | fprintf_filtered (stream, "\n"); |
c906108c SS |
202 | |
203 | /* Print out the methods */ | |
204 | ||
205 | for (i = 0; i < len; i++) | |
206 | { | |
207 | struct fn_field *f; | |
208 | int j; | |
209 | char *method_name; | |
210 | char *name; | |
211 | int is_constructor; | |
212 | int n_overloads; | |
213 | ||
214 | f = TYPE_FN_FIELDLIST1 (type, i); | |
215 | n_overloads = TYPE_FN_FIELDLIST_LENGTH (type, i); | |
216 | method_name = TYPE_FN_FIELDLIST_NAME (type, i); | |
217 | name = type_name_no_tag (type); | |
218 | is_constructor = name && STREQ (method_name, name); | |
219 | ||
220 | for (j = 0; j < n_overloads; j++) | |
221 | { | |
222 | char *physname; | |
223 | int is_full_physname_constructor; | |
224 | ||
225 | physname = TYPE_FN_FIELD_PHYSNAME (f, j); | |
226 | ||
c5aa993b | 227 | is_full_physname_constructor = |
c906108c SS |
228 | ((physname[0] == '_' && physname[1] == '_' |
229 | && strchr ("0123456789Qt", physname[2])) | |
230 | || STREQN (physname, "__ct__", 6) | |
231 | || DESTRUCTOR_PREFIX_P (physname) | |
232 | || STREQN (physname, "__dt__", 6)); | |
233 | ||
234 | QUIT; | |
235 | ||
236 | print_spaces_filtered (level + 4, stream); | |
237 | ||
238 | if (TYPE_FN_FIELD_PROTECTED (f, j)) | |
239 | fprintf_filtered (stream, "protected "); | |
240 | else if (TYPE_FN_FIELD_PRIVATE (f, j)) | |
241 | fprintf_filtered (stream, "private "); | |
242 | else if (TYPE_FN_FIELD_PUBLIC (f, j)) | |
243 | fprintf_filtered (stream, "public "); | |
244 | ||
245 | if (TYPE_FN_FIELD_ABSTRACT (f, j)) | |
246 | fprintf_filtered (stream, "abstract "); | |
247 | if (TYPE_FN_FIELD_STATIC (f, j)) | |
248 | fprintf_filtered (stream, "static "); | |
249 | if (TYPE_FN_FIELD_FINAL (f, j)) | |
250 | fprintf_filtered (stream, "final "); | |
251 | if (TYPE_FN_FIELD_SYNCHRONIZED (f, j)) | |
252 | fprintf_filtered (stream, "synchronized "); | |
253 | if (TYPE_FN_FIELD_NATIVE (f, j)) | |
254 | fprintf_filtered (stream, "native "); | |
255 | ||
256 | if (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)) == 0) | |
257 | { | |
258 | /* Keep GDB from crashing here. */ | |
259 | fprintf_filtered (stream, "<undefined type> %s;\n", | |
c5aa993b | 260 | TYPE_FN_FIELD_PHYSNAME (f, j)); |
c906108c SS |
261 | break; |
262 | } | |
263 | else if (!is_constructor && !is_full_physname_constructor) | |
264 | { | |
265 | type_print (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)), | |
266 | "", stream, -1); | |
267 | fputs_filtered (" ", stream); | |
268 | } | |
269 | ||
270 | if (TYPE_FN_FIELD_STUB (f, j)) | |
271 | /* Build something we can demangle. */ | |
272 | mangled_name = gdb_mangle_name (type, i, j); | |
273 | else | |
274 | mangled_name = TYPE_FN_FIELD_PHYSNAME (f, j); | |
275 | ||
276 | demangled_name = | |
277 | cplus_demangle (mangled_name, | |
278 | DMGL_ANSI | DMGL_PARAMS | DMGL_JAVA); | |
279 | ||
280 | if (demangled_name == NULL) | |
c2d11a7d | 281 | demangled_name = xstrdup (mangled_name); |
c906108c SS |
282 | |
283 | { | |
284 | char *demangled_no_class; | |
285 | char *ptr; | |
286 | ||
287 | ptr = demangled_no_class = demangled_name; | |
288 | ||
289 | while (1) | |
290 | { | |
291 | char c; | |
292 | ||
293 | c = *ptr++; | |
294 | ||
295 | if (c == 0 || c == '(') | |
296 | break; | |
297 | if (c == '.') | |
298 | demangled_no_class = ptr; | |
299 | } | |
300 | ||
301 | fputs_filtered (demangled_no_class, stream); | |
b8c9b27d | 302 | xfree (demangled_name); |
c906108c SS |
303 | } |
304 | ||
305 | if (TYPE_FN_FIELD_STUB (f, j)) | |
b8c9b27d | 306 | xfree (mangled_name); |
c906108c SS |
307 | |
308 | fprintf_filtered (stream, ";\n"); | |
309 | } | |
310 | } | |
311 | ||
312 | fprintfi_filtered (level, stream, "}"); | |
313 | } | |
314 | break; | |
315 | ||
c5aa993b JM |
316 | default: |
317 | c_type_print_base (type, stream, show, level); | |
c906108c SS |
318 | } |
319 | } | |
320 | ||
321 | /* LEVEL is the depth to indent lines by. */ | |
322 | ||
d9fcf2fb JM |
323 | extern void c_type_print_varspec_suffix (struct type *, struct ui_file *, |
324 | int, int, int); | |
7a292a7a | 325 | |
c906108c | 326 | void |
fba45db2 KB |
327 | java_print_type (struct type *type, char *varstring, struct ui_file *stream, |
328 | int show, int level) | |
c906108c SS |
329 | { |
330 | int demangled_args; | |
331 | ||
332 | java_type_print_base (type, stream, show, level); | |
333 | ||
334 | if (varstring != NULL && *varstring != '\0') | |
335 | { | |
336 | fputs_filtered (" ", stream); | |
337 | fputs_filtered (varstring, stream); | |
338 | } | |
339 | ||
340 | /* For demangled function names, we have the arglist as part of the name, | |
341 | so don't print an additional pair of ()'s */ | |
342 | ||
c5aa993b | 343 | demangled_args = strchr (varstring, '(') != NULL; |
c906108c SS |
344 | c_type_print_varspec_suffix (type, stream, show, 0, demangled_args); |
345 | } |