Commit | Line | Data |
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c906108c | 1 | /* Support for printing Java types for GDB, the GNU debugger. |
618f726f | 2 | Copyright (C) 1997-2016 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 | |
a9762ec7 | 8 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 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 | 16 | You should have received a copy of the GNU General Public License |
a9762ec7 | 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
18 | |
19 | ||
20 | #include "defs.h" | |
21 | #include "symtab.h" | |
22 | #include "gdbtypes.h" | |
23 | #include "value.h" | |
24 | #include "demangle.h" | |
50f182aa | 25 | #include "gdb-demangle.h" |
c906108c | 26 | #include "jv-lang.h" |
c906108c | 27 | #include "typeprint.h" |
7a292a7a | 28 | #include "c-lang.h" |
015a42b4 | 29 | #include "cp-abi.h" |
8de20a37 | 30 | #include "cp-support.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, | |
79d43c61 TT |
36 | int level, |
37 | const struct type_print_options *flags); | |
392a587b | 38 | |
c906108c | 39 | static void |
fba45db2 | 40 | java_type_print_derivation_info (struct ui_file *stream, struct type *type) |
c906108c | 41 | { |
0d5cff50 | 42 | const char *name; |
c906108c SS |
43 | int i; |
44 | int n_bases; | |
45 | int prev; | |
46 | ||
47 | n_bases = TYPE_N_BASECLASSES (type); | |
48 | ||
49 | for (i = 0, prev = 0; i < n_bases; i++) | |
50 | { | |
51 | int kind; | |
52 | ||
c5aa993b | 53 | kind = BASETYPE_VIA_VIRTUAL (type, i) ? 'I' : 'E'; |
c906108c SS |
54 | |
55 | fputs_filtered (kind == prev ? ", " | |
56 | : kind == 'I' ? " implements " | |
57 | : " extends ", | |
58 | stream); | |
59 | prev = kind; | |
60 | name = type_name_no_tag (TYPE_BASECLASS (type, i)); | |
61 | ||
62 | fprintf_filtered (stream, "%s", name ? name : "(null)"); | |
63 | } | |
64 | ||
65 | if (i > 0) | |
66 | fputs_filtered (" ", stream); | |
67 | } | |
68 | ||
69 | /* Print the name of the type (or the ultimate pointer target, | |
70 | function value or array element), or the description of a | |
71 | structure or union. | |
72 | ||
73 | SHOW positive means print details about the type (e.g. enum values), | |
74 | and print structure elements passing SHOW - 1 for show. | |
75 | SHOW negative means just print the type name or struct tag if there is one. | |
76 | If there is no name, print something sensible but concise like | |
77 | "struct {...}". | |
78 | SHOW zero means just print the type name or struct tag if there is one. | |
79 | If there is no name, print something sensible but not as concise like | |
80 | "struct {int x; int y;}". | |
81 | ||
82 | LEVEL is the number of spaces to indent by. | |
83 | We increase it for some recursive calls. */ | |
84 | ||
392a587b | 85 | static void |
fba45db2 | 86 | java_type_print_base (struct type *type, struct ui_file *stream, int show, |
79d43c61 | 87 | int level, const struct type_print_options *flags) |
c906108c | 88 | { |
52f0bd74 AC |
89 | int i; |
90 | int len; | |
c906108c SS |
91 | char *mangled_name; |
92 | char *demangled_name; | |
c906108c | 93 | |
e0881a8e | 94 | QUIT; |
c906108c SS |
95 | wrap_here (" "); |
96 | ||
97 | if (type == NULL) | |
98 | { | |
99 | fputs_filtered ("<type unknown>", stream); | |
100 | return; | |
101 | } | |
102 | ||
103 | /* When SHOW is zero or less, and there is a valid type name, then always | |
104 | just print the type name directly from the type. */ | |
105 | ||
106 | if (show <= 0 | |
107 | && TYPE_NAME (type) != NULL) | |
108 | { | |
109 | fputs_filtered (TYPE_NAME (type), stream); | |
110 | return; | |
111 | } | |
112 | ||
f168693b | 113 | type = check_typedef (type); |
c906108c SS |
114 | |
115 | switch (TYPE_CODE (type)) | |
116 | { | |
117 | case TYPE_CODE_PTR: | |
79d43c61 TT |
118 | java_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level, |
119 | flags); | |
c906108c SS |
120 | break; |
121 | ||
122 | case TYPE_CODE_STRUCT: | |
123 | if (TYPE_TAG_NAME (type) != NULL && TYPE_TAG_NAME (type)[0] == '[') | |
124 | { /* array type */ | |
125 | char *name = java_demangle_type_signature (TYPE_TAG_NAME (type)); | |
e0881a8e | 126 | |
c906108c | 127 | fputs_filtered (name, stream); |
b8c9b27d | 128 | xfree (name); |
c906108c SS |
129 | break; |
130 | } | |
131 | ||
132 | if (show >= 0) | |
133 | fprintf_filtered (stream, "class "); | |
134 | ||
135 | if (TYPE_TAG_NAME (type) != NULL) | |
136 | { | |
137 | fputs_filtered (TYPE_TAG_NAME (type), stream); | |
138 | if (show > 0) | |
139 | fputs_filtered (" ", stream); | |
140 | } | |
141 | ||
142 | wrap_here (" "); | |
143 | ||
144 | if (show < 0) | |
145 | { | |
146 | /* If we just printed a tag name, no need to print anything else. */ | |
147 | if (TYPE_TAG_NAME (type) == NULL) | |
148 | fprintf_filtered (stream, "{...}"); | |
149 | } | |
150 | else if (show > 0 || TYPE_TAG_NAME (type) == NULL) | |
151 | { | |
152 | java_type_print_derivation_info (stream, type); | |
c5aa993b | 153 | |
c906108c SS |
154 | fprintf_filtered (stream, "{\n"); |
155 | if ((TYPE_NFIELDS (type) == 0) && (TYPE_NFN_FIELDS (type) == 0)) | |
7a292a7a | 156 | { |
74a9bb82 | 157 | if (TYPE_STUB (type)) |
7a292a7a SS |
158 | fprintfi_filtered (level + 4, stream, "<incomplete type>\n"); |
159 | else | |
160 | fprintfi_filtered (level + 4, stream, "<no data fields>\n"); | |
161 | } | |
c906108c SS |
162 | |
163 | /* If there is a base class for this type, | |
164 | do not print the field that it occupies. */ | |
165 | ||
166 | len = TYPE_NFIELDS (type); | |
167 | for (i = TYPE_N_BASECLASSES (type); i < len; i++) | |
168 | { | |
169 | QUIT; | |
170 | /* Don't print out virtual function table. */ | |
61012eef | 171 | if (startswith (TYPE_FIELD_NAME (type, i), "_vptr") |
c906108c SS |
172 | && is_cplus_marker ((TYPE_FIELD_NAME (type, i))[5])) |
173 | continue; | |
174 | ||
1777feb0 | 175 | /* Don't print the dummy field "class". */ |
61012eef | 176 | if (startswith (TYPE_FIELD_NAME (type, i), "class")) |
c906108c SS |
177 | continue; |
178 | ||
179 | print_spaces_filtered (level + 4, stream); | |
180 | ||
181 | if (HAVE_CPLUS_STRUCT (type)) | |
7a292a7a SS |
182 | { |
183 | if (TYPE_FIELD_PROTECTED (type, i)) | |
184 | fprintf_filtered (stream, "protected "); | |
185 | else if (TYPE_FIELD_PRIVATE (type, i)) | |
186 | fprintf_filtered (stream, "private "); | |
187 | else | |
188 | fprintf_filtered (stream, "public "); | |
189 | } | |
c906108c | 190 | |
d6a843b5 | 191 | if (field_is_static (&TYPE_FIELD (type, i))) |
c906108c SS |
192 | fprintf_filtered (stream, "static "); |
193 | ||
194 | java_print_type (TYPE_FIELD_TYPE (type, i), | |
195 | TYPE_FIELD_NAME (type, i), | |
79d43c61 | 196 | stream, show - 1, level + 4, flags); |
c906108c SS |
197 | |
198 | fprintf_filtered (stream, ";\n"); | |
199 | } | |
200 | ||
1777feb0 | 201 | /* If there are both fields and methods, put a space between. */ |
c906108c SS |
202 | len = TYPE_NFN_FIELDS (type); |
203 | if (len) | |
c5aa993b | 204 | fprintf_filtered (stream, "\n"); |
c906108c | 205 | |
1777feb0 | 206 | /* Print out the methods. */ |
c906108c SS |
207 | |
208 | for (i = 0; i < len; i++) | |
209 | { | |
210 | struct fn_field *f; | |
211 | int j; | |
0d5cff50 DE |
212 | const char *method_name; |
213 | const char *name; | |
c906108c SS |
214 | int is_constructor; |
215 | int n_overloads; | |
216 | ||
217 | f = TYPE_FN_FIELDLIST1 (type, i); | |
218 | n_overloads = TYPE_FN_FIELDLIST_LENGTH (type, i); | |
219 | method_name = TYPE_FN_FIELDLIST_NAME (type, i); | |
220 | name = type_name_no_tag (type); | |
762f08a3 | 221 | is_constructor = name && strcmp (method_name, name) == 0; |
c906108c SS |
222 | |
223 | for (j = 0; j < n_overloads; j++) | |
224 | { | |
1d06ead6 | 225 | const char *real_physname; |
e6a959d6 PA |
226 | const char *p; |
227 | char *physname; | |
c906108c SS |
228 | int is_full_physname_constructor; |
229 | ||
86ffb506 KS |
230 | real_physname = TYPE_FN_FIELD_PHYSNAME (f, j); |
231 | ||
232 | /* The physname will contain the return type | |
233 | after the final closing parenthesis. Strip it off. */ | |
234 | p = strrchr (real_physname, ')'); | |
235 | gdb_assert (p != NULL); | |
236 | ++p; /* Keep the trailing ')'. */ | |
224c3ddb | 237 | physname = (char *) alloca (p - real_physname + 1); |
86ffb506 KS |
238 | memcpy (physname, real_physname, p - real_physname); |
239 | physname[p - real_physname] = '\0'; | |
c906108c | 240 | |
015a42b4 | 241 | is_full_physname_constructor |
7d27a96d TT |
242 | = (TYPE_FN_FIELD_CONSTRUCTOR (f, j) |
243 | || is_constructor_name (physname) | |
015a42b4 | 244 | || is_destructor_name (physname)); |
c906108c SS |
245 | |
246 | QUIT; | |
247 | ||
248 | print_spaces_filtered (level + 4, stream); | |
249 | ||
250 | if (TYPE_FN_FIELD_PROTECTED (f, j)) | |
251 | fprintf_filtered (stream, "protected "); | |
252 | else if (TYPE_FN_FIELD_PRIVATE (f, j)) | |
253 | fprintf_filtered (stream, "private "); | |
254 | else if (TYPE_FN_FIELD_PUBLIC (f, j)) | |
255 | fprintf_filtered (stream, "public "); | |
256 | ||
257 | if (TYPE_FN_FIELD_ABSTRACT (f, j)) | |
258 | fprintf_filtered (stream, "abstract "); | |
259 | if (TYPE_FN_FIELD_STATIC (f, j)) | |
260 | fprintf_filtered (stream, "static "); | |
261 | if (TYPE_FN_FIELD_FINAL (f, j)) | |
262 | fprintf_filtered (stream, "final "); | |
263 | if (TYPE_FN_FIELD_SYNCHRONIZED (f, j)) | |
264 | fprintf_filtered (stream, "synchronized "); | |
265 | if (TYPE_FN_FIELD_NATIVE (f, j)) | |
266 | fprintf_filtered (stream, "native "); | |
267 | ||
268 | if (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)) == 0) | |
269 | { | |
270 | /* Keep GDB from crashing here. */ | |
271 | fprintf_filtered (stream, "<undefined type> %s;\n", | |
c5aa993b | 272 | TYPE_FN_FIELD_PHYSNAME (f, j)); |
c906108c SS |
273 | break; |
274 | } | |
275 | else if (!is_constructor && !is_full_physname_constructor) | |
276 | { | |
277 | type_print (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)), | |
278 | "", stream, -1); | |
279 | fputs_filtered (" ", stream); | |
280 | } | |
281 | ||
282 | if (TYPE_FN_FIELD_STUB (f, j)) | |
283 | /* Build something we can demangle. */ | |
284 | mangled_name = gdb_mangle_name (type, i, j); | |
285 | else | |
86ffb506 | 286 | mangled_name = physname; |
c906108c SS |
287 | |
288 | demangled_name = | |
8de20a37 TT |
289 | gdb_demangle (mangled_name, |
290 | DMGL_ANSI | DMGL_PARAMS | DMGL_JAVA); | |
c906108c SS |
291 | |
292 | if (demangled_name == NULL) | |
c2d11a7d | 293 | demangled_name = xstrdup (mangled_name); |
c906108c SS |
294 | |
295 | { | |
296 | char *demangled_no_class; | |
297 | char *ptr; | |
298 | ||
299 | ptr = demangled_no_class = demangled_name; | |
300 | ||
301 | while (1) | |
302 | { | |
303 | char c; | |
304 | ||
305 | c = *ptr++; | |
306 | ||
307 | if (c == 0 || c == '(') | |
308 | break; | |
309 | if (c == '.') | |
310 | demangled_no_class = ptr; | |
311 | } | |
312 | ||
313 | fputs_filtered (demangled_no_class, stream); | |
b8c9b27d | 314 | xfree (demangled_name); |
c906108c SS |
315 | } |
316 | ||
317 | if (TYPE_FN_FIELD_STUB (f, j)) | |
b8c9b27d | 318 | xfree (mangled_name); |
c906108c SS |
319 | |
320 | fprintf_filtered (stream, ";\n"); | |
321 | } | |
322 | } | |
323 | ||
324 | fprintfi_filtered (level, stream, "}"); | |
325 | } | |
326 | break; | |
327 | ||
c5aa993b | 328 | default: |
79d43c61 | 329 | c_type_print_base (type, stream, show, level, flags); |
c906108c SS |
330 | } |
331 | } | |
332 | ||
333 | /* LEVEL is the depth to indent lines by. */ | |
334 | ||
335 | void | |
25b524e8 | 336 | java_print_type (struct type *type, const char *varstring, |
79d43c61 TT |
337 | struct ui_file *stream, int show, int level, |
338 | const struct type_print_options *flags) | |
c906108c SS |
339 | { |
340 | int demangled_args; | |
341 | ||
79d43c61 | 342 | java_type_print_base (type, stream, show, level, flags); |
c906108c SS |
343 | |
344 | if (varstring != NULL && *varstring != '\0') | |
345 | { | |
346 | fputs_filtered (" ", stream); | |
347 | fputs_filtered (varstring, stream); | |
348 | } | |
349 | ||
350 | /* For demangled function names, we have the arglist as part of the name, | |
1777feb0 | 351 | so don't print an additional pair of ()'s. */ |
c906108c | 352 | |
dc5000e7 | 353 | demangled_args = varstring != NULL && strchr (varstring, '(') != NULL; |
79d43c61 | 354 | c_type_print_varspec_suffix (type, stream, show, 0, demangled_args, flags); |
c906108c | 355 | } |