1 /* Support for printing Java types for GDB, the GNU debugger.
2 Copyright (C) 1997-2014 Free Software Foundation, Inc.
4 This file is part of GDB.
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 3 of the License, or
9 (at your option) any later version.
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.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
25 #include "gdb-demangle.h"
27 #include "typeprint.h"
30 #include "cp-support.h"
34 static void java_type_print_base (struct type * type,
35 struct ui_file *stream, int show,
37 const struct type_print_options *flags);
40 java_type_print_derivation_info (struct ui_file *stream, struct type *type)
47 n_bases = TYPE_N_BASECLASSES (type);
49 for (i = 0, prev = 0; i < n_bases; i++)
53 kind = BASETYPE_VIA_VIRTUAL (type, i) ? 'I' : 'E';
55 fputs_filtered (kind == prev ? ", "
56 : kind == 'I' ? " implements "
60 name = type_name_no_tag (TYPE_BASECLASS (type, i));
62 fprintf_filtered (stream, "%s", name ? name : "(null)");
66 fputs_filtered (" ", stream);
69 /* Print the name of the type (or the ultimate pointer target,
70 function value or array element), or the description of a
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
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;}".
82 LEVEL is the number of spaces to indent by.
83 We increase it for some recursive calls. */
86 java_type_print_base (struct type *type, struct ui_file *stream, int show,
87 int level, const struct type_print_options *flags)
99 fputs_filtered ("<type unknown>", stream);
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. */
107 && TYPE_NAME (type) != NULL)
109 fputs_filtered (TYPE_NAME (type), stream);
113 CHECK_TYPEDEF (type);
115 switch (TYPE_CODE (type))
118 java_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level,
122 case TYPE_CODE_STRUCT:
123 if (TYPE_TAG_NAME (type) != NULL && TYPE_TAG_NAME (type)[0] == '[')
125 char *name = java_demangle_type_signature (TYPE_TAG_NAME (type));
127 fputs_filtered (name, stream);
133 fprintf_filtered (stream, "class ");
135 if (TYPE_TAG_NAME (type) != NULL)
137 fputs_filtered (TYPE_TAG_NAME (type), stream);
139 fputs_filtered (" ", stream);
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, "{...}");
150 else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
152 java_type_print_derivation_info (stream, type);
154 fprintf_filtered (stream, "{\n");
155 if ((TYPE_NFIELDS (type) == 0) && (TYPE_NFN_FIELDS (type) == 0))
157 if (TYPE_STUB (type))
158 fprintfi_filtered (level + 4, stream, "<incomplete type>\n");
160 fprintfi_filtered (level + 4, stream, "<no data fields>\n");
163 /* If there is a base class for this type,
164 do not print the field that it occupies. */
166 len = TYPE_NFIELDS (type);
167 for (i = TYPE_N_BASECLASSES (type); i < len; i++)
170 /* Don't print out virtual function table. */
171 if (strncmp (TYPE_FIELD_NAME (type, i), "_vptr", 5) == 0
172 && is_cplus_marker ((TYPE_FIELD_NAME (type, i))[5]))
175 /* Don't print the dummy field "class". */
176 if (strncmp (TYPE_FIELD_NAME (type, i), "class", 5) == 0)
179 print_spaces_filtered (level + 4, stream);
181 if (HAVE_CPLUS_STRUCT (type))
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 ");
188 fprintf_filtered (stream, "public ");
191 if (field_is_static (&TYPE_FIELD (type, i)))
192 fprintf_filtered (stream, "static ");
194 java_print_type (TYPE_FIELD_TYPE (type, i),
195 TYPE_FIELD_NAME (type, i),
196 stream, show - 1, level + 4, flags);
198 fprintf_filtered (stream, ";\n");
201 /* If there are both fields and methods, put a space between. */
202 len = TYPE_NFN_FIELDS (type);
204 fprintf_filtered (stream, "\n");
206 /* Print out the methods. */
208 for (i = 0; i < len; i++)
212 const char *method_name;
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);
221 is_constructor = name && strcmp (method_name, name) == 0;
223 for (j = 0; j < n_overloads; j++)
225 const char *real_physname;
227 int is_full_physname_constructor;
229 real_physname = TYPE_FN_FIELD_PHYSNAME (f, j);
231 /* The physname will contain the return type
232 after the final closing parenthesis. Strip it off. */
233 p = strrchr (real_physname, ')');
234 gdb_assert (p != NULL);
235 ++p; /* Keep the trailing ')'. */
236 physname = alloca (p - real_physname + 1);
237 memcpy (physname, real_physname, p - real_physname);
238 physname[p - real_physname] = '\0';
240 is_full_physname_constructor
241 = (TYPE_FN_FIELD_CONSTRUCTOR (f, j)
242 || is_constructor_name (physname)
243 || is_destructor_name (physname));
247 print_spaces_filtered (level + 4, stream);
249 if (TYPE_FN_FIELD_PROTECTED (f, j))
250 fprintf_filtered (stream, "protected ");
251 else if (TYPE_FN_FIELD_PRIVATE (f, j))
252 fprintf_filtered (stream, "private ");
253 else if (TYPE_FN_FIELD_PUBLIC (f, j))
254 fprintf_filtered (stream, "public ");
256 if (TYPE_FN_FIELD_ABSTRACT (f, j))
257 fprintf_filtered (stream, "abstract ");
258 if (TYPE_FN_FIELD_STATIC (f, j))
259 fprintf_filtered (stream, "static ");
260 if (TYPE_FN_FIELD_FINAL (f, j))
261 fprintf_filtered (stream, "final ");
262 if (TYPE_FN_FIELD_SYNCHRONIZED (f, j))
263 fprintf_filtered (stream, "synchronized ");
264 if (TYPE_FN_FIELD_NATIVE (f, j))
265 fprintf_filtered (stream, "native ");
267 if (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)) == 0)
269 /* Keep GDB from crashing here. */
270 fprintf_filtered (stream, "<undefined type> %s;\n",
271 TYPE_FN_FIELD_PHYSNAME (f, j));
274 else if (!is_constructor && !is_full_physname_constructor)
276 type_print (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)),
278 fputs_filtered (" ", stream);
281 if (TYPE_FN_FIELD_STUB (f, j))
282 /* Build something we can demangle. */
283 mangled_name = gdb_mangle_name (type, i, j);
285 mangled_name = physname;
288 gdb_demangle (mangled_name,
289 DMGL_ANSI | DMGL_PARAMS | DMGL_JAVA);
291 if (demangled_name == NULL)
292 demangled_name = xstrdup (mangled_name);
295 char *demangled_no_class;
298 ptr = demangled_no_class = demangled_name;
306 if (c == 0 || c == '(')
309 demangled_no_class = ptr;
312 fputs_filtered (demangled_no_class, stream);
313 xfree (demangled_name);
316 if (TYPE_FN_FIELD_STUB (f, j))
317 xfree (mangled_name);
319 fprintf_filtered (stream, ";\n");
323 fprintfi_filtered (level, stream, "}");
328 c_type_print_base (type, stream, show, level, flags);
332 /* LEVEL is the depth to indent lines by. */
335 java_print_type (struct type *type, const char *varstring,
336 struct ui_file *stream, int show, int level,
337 const struct type_print_options *flags)
341 java_type_print_base (type, stream, show, level, flags);
343 if (varstring != NULL && *varstring != '\0')
345 fputs_filtered (" ", stream);
346 fputs_filtered (varstring, stream);
349 /* For demangled function names, we have the arglist as part of the name,
350 so don't print an additional pair of ()'s. */
352 demangled_args = varstring != NULL && strchr (varstring, '(') != NULL;
353 c_type_print_varspec_suffix (type, stream, show, 0, demangled_args, flags);