Commit | Line | Data |
---|---|---|
8b93c638 | 1 | /* Implementation of the GDB variable objects API. |
5b616ba1 | 2 | Copyright 1999, 2000, 2001 Free Software Foundation, Inc. |
8b93c638 JM |
3 | |
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
6 | the Free Software Foundation; either version 2 of the License, or | |
7 | (at your option) any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
15 | along with this program; if not, write to the Free Software | |
16 | Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | Boston, MA 02111-1307, USA. */ | |
18 | ||
19 | #include "defs.h" | |
20 | #include "value.h" | |
21 | #include "expression.h" | |
22 | #include "frame.h" | |
8b93c638 JM |
23 | #include "language.h" |
24 | #include "wrapper.h" | |
25 | #include "gdbcmd.h" | |
26 | #include <math.h> | |
27 | ||
28 | #include "varobj.h" | |
29 | ||
30 | /* Non-zero if we want to see trace of varobj level stuff. */ | |
31 | ||
32 | int varobjdebug = 0; | |
33 | ||
34 | /* String representations of gdb's format codes */ | |
35 | char *varobj_format_string[] = | |
72330bd6 | 36 | { "natural", "binary", "decimal", "hexadecimal", "octal" }; |
8b93c638 JM |
37 | |
38 | /* String representations of gdb's known languages */ | |
72330bd6 | 39 | char *varobj_language_string[] = { "unknown", "C", "C++", "Java" }; |
8b93c638 JM |
40 | |
41 | /* Data structures */ | |
42 | ||
43 | /* Every root variable has one of these structures saved in its | |
44 | varobj. Members which must be free'd are noted. */ | |
45 | struct varobj_root | |
72330bd6 | 46 | { |
8b93c638 | 47 | |
72330bd6 AC |
48 | /* Alloc'd expression for this parent. */ |
49 | struct expression *exp; | |
8b93c638 | 50 | |
72330bd6 AC |
51 | /* Block for which this expression is valid */ |
52 | struct block *valid_block; | |
8b93c638 | 53 | |
72330bd6 AC |
54 | /* The frame for this expression */ |
55 | CORE_ADDR frame; | |
8b93c638 | 56 | |
72330bd6 AC |
57 | /* If 1, "update" always recomputes the frame & valid block |
58 | using the currently selected frame. */ | |
59 | int use_selected_frame; | |
73a93a32 | 60 | |
72330bd6 AC |
61 | /* Language info for this variable and its children */ |
62 | struct language_specific *lang; | |
8b93c638 | 63 | |
72330bd6 AC |
64 | /* The varobj for this root node. */ |
65 | struct varobj *rootvar; | |
8b93c638 | 66 | |
72330bd6 AC |
67 | /* Next root variable */ |
68 | struct varobj_root *next; | |
69 | }; | |
8b93c638 JM |
70 | |
71 | /* Every variable in the system has a structure of this type defined | |
72 | for it. This structure holds all information necessary to manipulate | |
73 | a particular object variable. Members which must be freed are noted. */ | |
74 | struct varobj | |
72330bd6 | 75 | { |
8b93c638 | 76 | |
72330bd6 AC |
77 | /* Alloc'd name of the variable for this object.. If this variable is a |
78 | child, then this name will be the child's source name. | |
79 | (bar, not foo.bar) */ | |
80 | /* NOTE: This is the "expression" */ | |
81 | char *name; | |
8b93c638 | 82 | |
72330bd6 AC |
83 | /* The alloc'd name for this variable's object. This is here for |
84 | convenience when constructing this object's children. */ | |
85 | char *obj_name; | |
8b93c638 | 86 | |
72330bd6 AC |
87 | /* Index of this variable in its parent or -1 */ |
88 | int index; | |
8b93c638 | 89 | |
72330bd6 AC |
90 | /* The type of this variable. This may NEVER be NULL. */ |
91 | struct type *type; | |
8b93c638 | 92 | |
72330bd6 | 93 | /* The value of this expression or subexpression. This may be NULL. */ |
30b28db1 | 94 | struct value *value; |
8b93c638 | 95 | |
72330bd6 AC |
96 | /* Did an error occur evaluating the expression or getting its value? */ |
97 | int error; | |
8b93c638 | 98 | |
72330bd6 AC |
99 | /* The number of (immediate) children this variable has */ |
100 | int num_children; | |
8b93c638 | 101 | |
72330bd6 AC |
102 | /* If this object is a child, this points to its immediate parent. */ |
103 | struct varobj *parent; | |
8b93c638 | 104 | |
72330bd6 AC |
105 | /* A list of this object's children */ |
106 | struct varobj_child *children; | |
8b93c638 | 107 | |
72330bd6 AC |
108 | /* Description of the root variable. Points to root variable for children. */ |
109 | struct varobj_root *root; | |
8b93c638 | 110 | |
72330bd6 AC |
111 | /* The format of the output for this object */ |
112 | enum varobj_display_formats format; | |
113 | }; | |
8b93c638 JM |
114 | |
115 | /* Every variable keeps a linked list of its children, described | |
116 | by the following structure. */ | |
117 | /* FIXME: Deprecated. All should use vlist instead */ | |
118 | ||
119 | struct varobj_child | |
72330bd6 | 120 | { |
8b93c638 | 121 | |
72330bd6 AC |
122 | /* Pointer to the child's data */ |
123 | struct varobj *child; | |
8b93c638 | 124 | |
72330bd6 AC |
125 | /* Pointer to the next child */ |
126 | struct varobj_child *next; | |
127 | }; | |
8b93c638 JM |
128 | |
129 | /* A stack of varobjs */ | |
130 | /* FIXME: Deprecated. All should use vlist instead */ | |
131 | ||
132 | struct vstack | |
72330bd6 AC |
133 | { |
134 | struct varobj *var; | |
135 | struct vstack *next; | |
136 | }; | |
8b93c638 JM |
137 | |
138 | struct cpstack | |
72330bd6 AC |
139 | { |
140 | char *name; | |
141 | struct cpstack *next; | |
142 | }; | |
8b93c638 JM |
143 | |
144 | /* A list of varobjs */ | |
145 | ||
146 | struct vlist | |
72330bd6 AC |
147 | { |
148 | struct varobj *var; | |
149 | struct vlist *next; | |
150 | }; | |
8b93c638 JM |
151 | |
152 | /* Private function prototypes */ | |
153 | ||
154 | /* Helper functions for the above subcommands. */ | |
155 | ||
a14ed312 | 156 | static int delete_variable (struct cpstack **, struct varobj *, int); |
8b93c638 | 157 | |
a14ed312 KB |
158 | static void delete_variable_1 (struct cpstack **, int *, |
159 | struct varobj *, int, int); | |
8b93c638 | 160 | |
a14ed312 | 161 | static int install_variable (struct varobj *); |
8b93c638 | 162 | |
a14ed312 | 163 | static void uninstall_variable (struct varobj *); |
8b93c638 | 164 | |
a14ed312 | 165 | static struct varobj *child_exists (struct varobj *, char *); |
8b93c638 | 166 | |
a14ed312 | 167 | static struct varobj *create_child (struct varobj *, int, char *); |
8b93c638 | 168 | |
a14ed312 | 169 | static void save_child_in_parent (struct varobj *, struct varobj *); |
8b93c638 | 170 | |
a14ed312 | 171 | static void remove_child_from_parent (struct varobj *, struct varobj *); |
8b93c638 JM |
172 | |
173 | /* Utility routines */ | |
174 | ||
a14ed312 | 175 | static struct varobj *new_variable (void); |
8b93c638 | 176 | |
a14ed312 | 177 | static struct varobj *new_root_variable (void); |
8b93c638 | 178 | |
a14ed312 | 179 | static void free_variable (struct varobj *var); |
8b93c638 | 180 | |
74b7792f AC |
181 | static struct cleanup *make_cleanup_free_variable (struct varobj *var); |
182 | ||
a14ed312 | 183 | static struct type *get_type (struct varobj *var); |
8b93c638 | 184 | |
a14ed312 | 185 | static struct type *get_type_deref (struct varobj *var); |
8b93c638 | 186 | |
a14ed312 | 187 | static struct type *get_target_type (struct type *); |
8b93c638 | 188 | |
a14ed312 | 189 | static enum varobj_display_formats variable_default_display (struct varobj *); |
8b93c638 | 190 | |
30b28db1 | 191 | static int my_value_equal (struct value *, struct value *, int *); |
8b93c638 | 192 | |
a14ed312 | 193 | static void vpush (struct vstack **pstack, struct varobj *var); |
8b93c638 | 194 | |
a14ed312 | 195 | static struct varobj *vpop (struct vstack **pstack); |
8b93c638 | 196 | |
a14ed312 | 197 | static void cppush (struct cpstack **pstack, char *name); |
8b93c638 | 198 | |
a14ed312 | 199 | static char *cppop (struct cpstack **pstack); |
8b93c638 JM |
200 | |
201 | /* Language-specific routines. */ | |
202 | ||
a14ed312 | 203 | static enum varobj_languages variable_language (struct varobj *var); |
8b93c638 | 204 | |
a14ed312 | 205 | static int number_of_children (struct varobj *); |
8b93c638 | 206 | |
a14ed312 | 207 | static char *name_of_variable (struct varobj *); |
8b93c638 | 208 | |
a14ed312 | 209 | static char *name_of_child (struct varobj *, int); |
8b93c638 | 210 | |
30b28db1 | 211 | static struct value *value_of_root (struct varobj **var_handle, int *); |
8b93c638 | 212 | |
30b28db1 | 213 | static struct value *value_of_child (struct varobj *parent, int index); |
8b93c638 | 214 | |
a14ed312 | 215 | static struct type *type_of_child (struct varobj *var); |
8b93c638 | 216 | |
a14ed312 | 217 | static int variable_editable (struct varobj *var); |
8b93c638 | 218 | |
a14ed312 | 219 | static char *my_value_of_variable (struct varobj *var); |
8b93c638 | 220 | |
a14ed312 | 221 | static int type_changeable (struct varobj *var); |
8b93c638 JM |
222 | |
223 | /* C implementation */ | |
224 | ||
a14ed312 | 225 | static int c_number_of_children (struct varobj *var); |
8b93c638 | 226 | |
a14ed312 | 227 | static char *c_name_of_variable (struct varobj *parent); |
8b93c638 | 228 | |
a14ed312 | 229 | static char *c_name_of_child (struct varobj *parent, int index); |
8b93c638 | 230 | |
30b28db1 | 231 | static struct value *c_value_of_root (struct varobj **var_handle); |
8b93c638 | 232 | |
30b28db1 | 233 | static struct value *c_value_of_child (struct varobj *parent, int index); |
8b93c638 | 234 | |
a14ed312 | 235 | static struct type *c_type_of_child (struct varobj *parent, int index); |
8b93c638 | 236 | |
a14ed312 | 237 | static int c_variable_editable (struct varobj *var); |
8b93c638 | 238 | |
a14ed312 | 239 | static char *c_value_of_variable (struct varobj *var); |
8b93c638 JM |
240 | |
241 | /* C++ implementation */ | |
242 | ||
a14ed312 | 243 | static int cplus_number_of_children (struct varobj *var); |
8b93c638 | 244 | |
a14ed312 | 245 | static void cplus_class_num_children (struct type *type, int children[3]); |
8b93c638 | 246 | |
a14ed312 | 247 | static char *cplus_name_of_variable (struct varobj *parent); |
8b93c638 | 248 | |
a14ed312 | 249 | static char *cplus_name_of_child (struct varobj *parent, int index); |
8b93c638 | 250 | |
30b28db1 | 251 | static struct value *cplus_value_of_root (struct varobj **var_handle); |
8b93c638 | 252 | |
30b28db1 | 253 | static struct value *cplus_value_of_child (struct varobj *parent, int index); |
8b93c638 | 254 | |
a14ed312 | 255 | static struct type *cplus_type_of_child (struct varobj *parent, int index); |
8b93c638 | 256 | |
a14ed312 | 257 | static int cplus_variable_editable (struct varobj *var); |
8b93c638 | 258 | |
a14ed312 | 259 | static char *cplus_value_of_variable (struct varobj *var); |
8b93c638 JM |
260 | |
261 | /* Java implementation */ | |
262 | ||
a14ed312 | 263 | static int java_number_of_children (struct varobj *var); |
8b93c638 | 264 | |
a14ed312 | 265 | static char *java_name_of_variable (struct varobj *parent); |
8b93c638 | 266 | |
a14ed312 | 267 | static char *java_name_of_child (struct varobj *parent, int index); |
8b93c638 | 268 | |
30b28db1 | 269 | static struct value *java_value_of_root (struct varobj **var_handle); |
8b93c638 | 270 | |
30b28db1 | 271 | static struct value *java_value_of_child (struct varobj *parent, int index); |
8b93c638 | 272 | |
a14ed312 | 273 | static struct type *java_type_of_child (struct varobj *parent, int index); |
8b93c638 | 274 | |
a14ed312 | 275 | static int java_variable_editable (struct varobj *var); |
8b93c638 | 276 | |
a14ed312 | 277 | static char *java_value_of_variable (struct varobj *var); |
8b93c638 JM |
278 | |
279 | /* The language specific vector */ | |
280 | ||
281 | struct language_specific | |
72330bd6 | 282 | { |
8b93c638 | 283 | |
72330bd6 AC |
284 | /* The language of this variable */ |
285 | enum varobj_languages language; | |
8b93c638 | 286 | |
72330bd6 AC |
287 | /* The number of children of PARENT. */ |
288 | int (*number_of_children) (struct varobj * parent); | |
8b93c638 | 289 | |
72330bd6 AC |
290 | /* The name (expression) of a root varobj. */ |
291 | char *(*name_of_variable) (struct varobj * parent); | |
8b93c638 | 292 | |
72330bd6 AC |
293 | /* The name of the INDEX'th child of PARENT. */ |
294 | char *(*name_of_child) (struct varobj * parent, int index); | |
8b93c638 | 295 | |
30b28db1 AC |
296 | /* The ``struct value *'' of the root variable ROOT. */ |
297 | struct value *(*value_of_root) (struct varobj ** root_handle); | |
8b93c638 | 298 | |
30b28db1 AC |
299 | /* The ``struct value *'' of the INDEX'th child of PARENT. */ |
300 | struct value *(*value_of_child) (struct varobj * parent, int index); | |
8b93c638 | 301 | |
72330bd6 AC |
302 | /* The type of the INDEX'th child of PARENT. */ |
303 | struct type *(*type_of_child) (struct varobj * parent, int index); | |
8b93c638 | 304 | |
72330bd6 AC |
305 | /* Is VAR editable? */ |
306 | int (*variable_editable) (struct varobj * var); | |
8b93c638 | 307 | |
72330bd6 AC |
308 | /* The current value of VAR. */ |
309 | char *(*value_of_variable) (struct varobj * var); | |
310 | }; | |
8b93c638 JM |
311 | |
312 | /* Array of known source language routines. */ | |
313 | static struct language_specific | |
72330bd6 | 314 | languages[vlang_end][sizeof (struct language_specific)] = { |
8b93c638 JM |
315 | /* Unknown (try treating as C */ |
316 | { | |
72330bd6 AC |
317 | vlang_unknown, |
318 | c_number_of_children, | |
319 | c_name_of_variable, | |
320 | c_name_of_child, | |
321 | c_value_of_root, | |
322 | c_value_of_child, | |
323 | c_type_of_child, | |
324 | c_variable_editable, | |
325 | c_value_of_variable} | |
8b93c638 JM |
326 | , |
327 | /* C */ | |
328 | { | |
72330bd6 AC |
329 | vlang_c, |
330 | c_number_of_children, | |
331 | c_name_of_variable, | |
332 | c_name_of_child, | |
333 | c_value_of_root, | |
334 | c_value_of_child, | |
335 | c_type_of_child, | |
336 | c_variable_editable, | |
337 | c_value_of_variable} | |
8b93c638 JM |
338 | , |
339 | /* C++ */ | |
340 | { | |
72330bd6 AC |
341 | vlang_cplus, |
342 | cplus_number_of_children, | |
343 | cplus_name_of_variable, | |
344 | cplus_name_of_child, | |
345 | cplus_value_of_root, | |
346 | cplus_value_of_child, | |
347 | cplus_type_of_child, | |
348 | cplus_variable_editable, | |
349 | cplus_value_of_variable} | |
8b93c638 JM |
350 | , |
351 | /* Java */ | |
352 | { | |
72330bd6 AC |
353 | vlang_java, |
354 | java_number_of_children, | |
355 | java_name_of_variable, | |
356 | java_name_of_child, | |
357 | java_value_of_root, | |
358 | java_value_of_child, | |
359 | java_type_of_child, | |
360 | java_variable_editable, | |
361 | java_value_of_variable} | |
8b93c638 JM |
362 | }; |
363 | ||
364 | /* A little convenience enum for dealing with C++/Java */ | |
365 | enum vsections | |
72330bd6 AC |
366 | { |
367 | v_public = 0, v_private, v_protected | |
368 | }; | |
8b93c638 JM |
369 | |
370 | /* Private data */ | |
371 | ||
372 | /* Mappings of varobj_display_formats enums to gdb's format codes */ | |
72330bd6 | 373 | static int format_code[] = { 0, 't', 'd', 'x', 'o' }; |
8b93c638 JM |
374 | |
375 | /* Header of the list of root variable objects */ | |
376 | static struct varobj_root *rootlist; | |
377 | static int rootcount = 0; /* number of root varobjs in the list */ | |
378 | ||
379 | /* Prime number indicating the number of buckets in the hash table */ | |
380 | /* A prime large enough to avoid too many colisions */ | |
381 | #define VAROBJ_TABLE_SIZE 227 | |
382 | ||
383 | /* Pointer to the varobj hash table (built at run time) */ | |
384 | static struct vlist **varobj_table; | |
385 | ||
8b93c638 JM |
386 | /* Is the variable X one of our "fake" children? */ |
387 | #define CPLUS_FAKE_CHILD(x) \ | |
388 | ((x) != NULL && (x)->type == NULL && (x)->value == NULL) | |
389 | \f | |
390 | ||
391 | /* API Implementation */ | |
392 | ||
393 | /* Creates a varobj (not its children) */ | |
394 | ||
395 | struct varobj * | |
396 | varobj_create (char *objname, | |
72330bd6 | 397 | char *expression, CORE_ADDR frame, enum varobj_type type) |
8b93c638 JM |
398 | { |
399 | struct varobj *var; | |
2c67cb8b AC |
400 | struct frame_info *fi; |
401 | struct frame_info *old_fi = NULL; | |
8b93c638 JM |
402 | struct block *block; |
403 | struct cleanup *old_chain; | |
404 | ||
405 | /* Fill out a varobj structure for the (root) variable being constructed. */ | |
406 | var = new_root_variable (); | |
74b7792f | 407 | old_chain = make_cleanup_free_variable (var); |
8b93c638 JM |
408 | |
409 | if (expression != NULL) | |
410 | { | |
411 | char *p; | |
412 | enum varobj_languages lang; | |
413 | ||
414 | /* Parse and evaluate the expression, filling in as much | |
415 | of the variable's data as possible */ | |
416 | ||
417 | /* Allow creator to specify context of variable */ | |
72330bd6 | 418 | if ((type == USE_CURRENT_FRAME) || (type == USE_SELECTED_FRAME)) |
8b93c638 JM |
419 | fi = selected_frame; |
420 | else | |
421 | fi = find_frame_addr_in_frame_chain (frame); | |
422 | ||
73a93a32 JI |
423 | /* frame = -2 means always use selected frame */ |
424 | if (type == USE_SELECTED_FRAME) | |
425 | var->root->use_selected_frame = 1; | |
426 | ||
8b93c638 JM |
427 | block = NULL; |
428 | if (fi != NULL) | |
429 | block = get_frame_block (fi); | |
430 | ||
431 | p = expression; | |
432 | innermost_block = NULL; | |
73a93a32 JI |
433 | /* Wrap the call to parse expression, so we can |
434 | return a sensible error. */ | |
435 | if (!gdb_parse_exp_1 (&p, block, 0, &var->root->exp)) | |
436 | { | |
437 | return NULL; | |
438 | } | |
8b93c638 JM |
439 | |
440 | /* Don't allow variables to be created for types. */ | |
441 | if (var->root->exp->elts[0].opcode == OP_TYPE) | |
442 | { | |
443 | do_cleanups (old_chain); | |
444 | fprintf_unfiltered (gdb_stderr, | |
72330bd6 | 445 | "Attempt to use a type name as an expression."); |
8b93c638 JM |
446 | return NULL; |
447 | } | |
448 | ||
449 | var->format = variable_default_display (var); | |
450 | var->root->valid_block = innermost_block; | |
451 | var->name = savestring (expression, strlen (expression)); | |
452 | ||
453 | /* When the frame is different from the current frame, | |
454 | we must select the appropriate frame before parsing | |
455 | the expression, otherwise the value will not be current. | |
456 | Since select_frame is so benign, just call it for all cases. */ | |
457 | if (fi != NULL) | |
458 | { | |
459 | var->root->frame = FRAME_FP (fi); | |
460 | old_fi = selected_frame; | |
461 | select_frame (fi, -1); | |
462 | } | |
463 | ||
464 | /* We definitively need to catch errors here. | |
465 | If evaluate_expression succeeds we got the value we wanted. | |
466 | But if it fails, we still go on with a call to evaluate_type() */ | |
467 | if (gdb_evaluate_expression (var->root->exp, &var->value)) | |
468 | { | |
469 | /* no error */ | |
470 | release_value (var->value); | |
471 | if (VALUE_LAZY (var->value)) | |
472 | gdb_value_fetch_lazy (var->value); | |
473 | } | |
474 | else | |
475 | var->value = evaluate_type (var->root->exp); | |
476 | ||
477 | var->type = VALUE_TYPE (var->value); | |
478 | ||
479 | /* Set language info */ | |
480 | lang = variable_language (var); | |
481 | var->root->lang = languages[lang]; | |
482 | ||
483 | /* Set ourselves as our root */ | |
484 | var->root->rootvar = var; | |
485 | ||
486 | /* Reset the selected frame */ | |
487 | if (fi != NULL) | |
488 | select_frame (old_fi, -1); | |
489 | } | |
490 | ||
73a93a32 JI |
491 | /* If the variable object name is null, that means this |
492 | is a temporary variable, so don't install it. */ | |
493 | ||
494 | if ((var != NULL) && (objname != NULL)) | |
8b93c638 JM |
495 | { |
496 | var->obj_name = savestring (objname, strlen (objname)); | |
497 | ||
498 | /* If a varobj name is duplicated, the install will fail so | |
499 | we must clenup */ | |
500 | if (!install_variable (var)) | |
501 | { | |
502 | do_cleanups (old_chain); | |
503 | return NULL; | |
504 | } | |
505 | } | |
506 | ||
507 | discard_cleanups (old_chain); | |
508 | return var; | |
509 | } | |
510 | ||
511 | /* Generates an unique name that can be used for a varobj */ | |
512 | ||
513 | char * | |
514 | varobj_gen_name (void) | |
515 | { | |
516 | static int id = 0; | |
517 | char obj_name[31]; | |
518 | ||
519 | /* generate a name for this object */ | |
520 | id++; | |
521 | sprintf (obj_name, "var%d", id); | |
522 | ||
523 | return xstrdup (obj_name); | |
524 | } | |
525 | ||
526 | /* Given an "objname", returns the pointer to the corresponding varobj | |
527 | or NULL if not found */ | |
528 | ||
529 | struct varobj * | |
530 | varobj_get_handle (char *objname) | |
531 | { | |
532 | struct vlist *cv; | |
533 | const char *chp; | |
534 | unsigned int index = 0; | |
535 | unsigned int i = 1; | |
536 | ||
537 | for (chp = objname; *chp; chp++) | |
538 | { | |
539 | index = (index + (i++ * (unsigned int) *chp)) % VAROBJ_TABLE_SIZE; | |
540 | } | |
541 | ||
542 | cv = *(varobj_table + index); | |
543 | while ((cv != NULL) && (strcmp (cv->var->obj_name, objname) != 0)) | |
544 | cv = cv->next; | |
545 | ||
546 | if (cv == NULL) | |
547 | error ("Variable object not found"); | |
548 | ||
549 | return cv->var; | |
550 | } | |
551 | ||
552 | /* Given the handle, return the name of the object */ | |
553 | ||
554 | char * | |
555 | varobj_get_objname (struct varobj *var) | |
556 | { | |
557 | return var->obj_name; | |
558 | } | |
559 | ||
560 | /* Given the handle, return the expression represented by the object */ | |
561 | ||
562 | char * | |
563 | varobj_get_expression (struct varobj *var) | |
564 | { | |
565 | return name_of_variable (var); | |
566 | } | |
567 | ||
568 | /* Deletes a varobj and all its children if only_children == 0, | |
569 | otherwise deletes only the children; returns a malloc'ed list of all the | |
570 | (malloc'ed) names of the variables that have been deleted (NULL terminated) */ | |
571 | ||
572 | int | |
573 | varobj_delete (struct varobj *var, char ***dellist, int only_children) | |
574 | { | |
575 | int delcount; | |
576 | int mycount; | |
577 | struct cpstack *result = NULL; | |
578 | char **cp; | |
579 | ||
580 | /* Initialize a stack for temporary results */ | |
581 | cppush (&result, NULL); | |
582 | ||
583 | if (only_children) | |
584 | /* Delete only the variable children */ | |
585 | delcount = delete_variable (&result, var, 1 /* only the children */ ); | |
586 | else | |
587 | /* Delete the variable and all its children */ | |
588 | delcount = delete_variable (&result, var, 0 /* parent+children */ ); | |
589 | ||
590 | /* We may have been asked to return a list of what has been deleted */ | |
591 | if (dellist != NULL) | |
592 | { | |
593 | *dellist = xmalloc ((delcount + 1) * sizeof (char *)); | |
594 | ||
595 | cp = *dellist; | |
596 | mycount = delcount; | |
597 | *cp = cppop (&result); | |
598 | while ((*cp != NULL) && (mycount > 0)) | |
599 | { | |
600 | mycount--; | |
601 | cp++; | |
602 | *cp = cppop (&result); | |
603 | } | |
604 | ||
605 | if (mycount || (*cp != NULL)) | |
72330bd6 AC |
606 | warning ("varobj_delete: assertion failed - mycount(=%d) <> 0", |
607 | mycount); | |
8b93c638 JM |
608 | } |
609 | ||
610 | return delcount; | |
611 | } | |
612 | ||
613 | /* Set/Get variable object display format */ | |
614 | ||
615 | enum varobj_display_formats | |
616 | varobj_set_display_format (struct varobj *var, | |
617 | enum varobj_display_formats format) | |
618 | { | |
619 | switch (format) | |
620 | { | |
621 | case FORMAT_NATURAL: | |
622 | case FORMAT_BINARY: | |
623 | case FORMAT_DECIMAL: | |
624 | case FORMAT_HEXADECIMAL: | |
625 | case FORMAT_OCTAL: | |
626 | var->format = format; | |
627 | break; | |
628 | ||
629 | default: | |
630 | var->format = variable_default_display (var); | |
631 | } | |
632 | ||
633 | return var->format; | |
634 | } | |
635 | ||
636 | enum varobj_display_formats | |
637 | varobj_get_display_format (struct varobj *var) | |
638 | { | |
639 | return var->format; | |
640 | } | |
641 | ||
642 | int | |
643 | varobj_get_num_children (struct varobj *var) | |
644 | { | |
645 | if (var->num_children == -1) | |
646 | var->num_children = number_of_children (var); | |
647 | ||
648 | return var->num_children; | |
649 | } | |
650 | ||
651 | /* Creates a list of the immediate children of a variable object; | |
652 | the return code is the number of such children or -1 on error */ | |
653 | ||
654 | int | |
655 | varobj_list_children (struct varobj *var, struct varobj ***childlist) | |
656 | { | |
657 | struct varobj *child; | |
658 | char *name; | |
659 | int i; | |
660 | ||
661 | /* sanity check: have we been passed a pointer? */ | |
662 | if (childlist == NULL) | |
663 | return -1; | |
664 | ||
665 | *childlist = NULL; | |
666 | ||
667 | if (var->num_children == -1) | |
668 | var->num_children = number_of_children (var); | |
669 | ||
670 | /* List of children */ | |
671 | *childlist = xmalloc ((var->num_children + 1) * sizeof (struct varobj *)); | |
672 | ||
673 | for (i = 0; i < var->num_children; i++) | |
674 | { | |
675 | /* Mark as the end in case we bail out */ | |
676 | *((*childlist) + i) = NULL; | |
677 | ||
678 | /* check if child exists, if not create */ | |
679 | name = name_of_child (var, i); | |
680 | child = child_exists (var, name); | |
681 | if (child == NULL) | |
682 | child = create_child (var, i, name); | |
683 | ||
684 | *((*childlist) + i) = child; | |
685 | } | |
686 | ||
687 | /* End of list is marked by a NULL pointer */ | |
688 | *((*childlist) + i) = NULL; | |
689 | ||
690 | return var->num_children; | |
691 | } | |
692 | ||
693 | /* Obtain the type of an object Variable as a string similar to the one gdb | |
694 | prints on the console */ | |
695 | ||
696 | char * | |
697 | varobj_get_type (struct varobj *var) | |
698 | { | |
30b28db1 | 699 | struct value *val; |
8b93c638 JM |
700 | struct cleanup *old_chain; |
701 | struct ui_file *stb; | |
702 | char *thetype; | |
703 | long length; | |
704 | ||
705 | /* For the "fake" variables, do not return a type. (It's type is | |
706 | NULL, too.) */ | |
707 | if (CPLUS_FAKE_CHILD (var)) | |
708 | return NULL; | |
709 | ||
710 | stb = mem_fileopen (); | |
711 | old_chain = make_cleanup_ui_file_delete (stb); | |
712 | ||
30b28db1 | 713 | /* To print the type, we simply create a zero ``struct value *'' and |
8b93c638 JM |
714 | cast it to our type. We then typeprint this variable. */ |
715 | val = value_zero (var->type, not_lval); | |
716 | type_print (VALUE_TYPE (val), "", stb, -1); | |
717 | ||
718 | thetype = ui_file_xstrdup (stb, &length); | |
719 | do_cleanups (old_chain); | |
720 | return thetype; | |
721 | } | |
722 | ||
723 | enum varobj_languages | |
724 | varobj_get_language (struct varobj *var) | |
725 | { | |
726 | return variable_language (var); | |
727 | } | |
728 | ||
729 | int | |
730 | varobj_get_attributes (struct varobj *var) | |
731 | { | |
732 | int attributes = 0; | |
733 | ||
734 | if (variable_editable (var)) | |
735 | /* FIXME: define masks for attributes */ | |
736 | attributes |= 0x00000001; /* Editable */ | |
737 | ||
738 | return attributes; | |
739 | } | |
740 | ||
741 | char * | |
742 | varobj_get_value (struct varobj *var) | |
743 | { | |
744 | return my_value_of_variable (var); | |
745 | } | |
746 | ||
747 | /* Set the value of an object variable (if it is editable) to the | |
748 | value of the given expression */ | |
749 | /* Note: Invokes functions that can call error() */ | |
750 | ||
751 | int | |
752 | varobj_set_value (struct varobj *var, char *expression) | |
753 | { | |
30b28db1 | 754 | struct value *val; |
8b93c638 JM |
755 | int offset = 0; |
756 | ||
757 | /* The argument "expression" contains the variable's new value. | |
758 | We need to first construct a legal expression for this -- ugh! */ | |
759 | /* Does this cover all the bases? */ | |
760 | struct expression *exp; | |
30b28db1 | 761 | struct value *value; |
8b93c638 JM |
762 | int saved_input_radix = input_radix; |
763 | ||
575bbeb6 | 764 | if (var->value != NULL && variable_editable (var) && !var->error) |
8b93c638 JM |
765 | { |
766 | char *s = expression; | |
767 | int i; | |
8b93c638 JM |
768 | |
769 | input_radix = 10; /* ALWAYS reset to decimal temporarily */ | |
586e589c FN |
770 | if (!gdb_parse_exp_1 (&s, 0, 0, &exp)) |
771 | /* We cannot proceed without a well-formed expression. */ | |
772 | return 0; | |
8b93c638 JM |
773 | if (!gdb_evaluate_expression (exp, &value)) |
774 | { | |
775 | /* We cannot proceed without a valid expression. */ | |
8038e1e2 | 776 | xfree (exp); |
8b93c638 JM |
777 | return 0; |
778 | } | |
779 | ||
575bbeb6 | 780 | if (!gdb_value_assign (var->value, value, &val)) |
8a1a0112 | 781 | return 0; |
8b93c638 JM |
782 | value_free (var->value); |
783 | release_value (val); | |
784 | var->value = val; | |
785 | input_radix = saved_input_radix; | |
786 | return 1; | |
787 | } | |
788 | ||
789 | return 0; | |
790 | } | |
791 | ||
792 | /* Returns a malloc'ed list with all root variable objects */ | |
793 | int | |
794 | varobj_list (struct varobj ***varlist) | |
795 | { | |
796 | struct varobj **cv; | |
797 | struct varobj_root *croot; | |
798 | int mycount = rootcount; | |
799 | ||
800 | /* Alloc (rootcount + 1) entries for the result */ | |
801 | *varlist = xmalloc ((rootcount + 1) * sizeof (struct varobj *)); | |
802 | ||
803 | cv = *varlist; | |
804 | croot = rootlist; | |
805 | while ((croot != NULL) && (mycount > 0)) | |
806 | { | |
807 | *cv = croot->rootvar; | |
808 | mycount--; | |
809 | cv++; | |
810 | croot = croot->next; | |
811 | } | |
812 | /* Mark the end of the list */ | |
813 | *cv = NULL; | |
814 | ||
815 | if (mycount || (croot != NULL)) | |
72330bd6 AC |
816 | warning |
817 | ("varobj_list: assertion failed - wrong tally of root vars (%d:%d)", | |
818 | rootcount, mycount); | |
8b93c638 JM |
819 | |
820 | return rootcount; | |
821 | } | |
822 | ||
823 | /* Update the values for a variable and its children. This is a | |
824 | two-pronged attack. First, re-parse the value for the root's | |
825 | expression to see if it's changed. Then go all the way | |
826 | through its children, reconstructing them and noting if they've | |
827 | changed. | |
73a93a32 JI |
828 | Return value: |
829 | -1 if there was an error updating the varobj | |
830 | -2 if the type changed | |
831 | Otherwise it is the number of children + parent changed | |
8b93c638 | 832 | |
705da579 KS |
833 | Only root variables can be updated... |
834 | ||
835 | NOTE: This function may delete the caller's varobj. If it | |
836 | returns -2, then it has done this and VARP will be modified | |
837 | to point to the new varobj. */ | |
8b93c638 JM |
838 | |
839 | int | |
705da579 | 840 | varobj_update (struct varobj **varp, struct varobj ***changelist) |
8b93c638 JM |
841 | { |
842 | int changed = 0; | |
73a93a32 | 843 | int type_changed; |
8b93c638 JM |
844 | int i; |
845 | int vleft; | |
846 | int error2; | |
847 | struct varobj *v; | |
848 | struct varobj **cv; | |
2c67cb8b | 849 | struct varobj **templist = NULL; |
30b28db1 | 850 | struct value *new; |
8b93c638 JM |
851 | struct vstack *stack = NULL; |
852 | struct vstack *result = NULL; | |
853 | struct frame_info *old_fi; | |
854 | ||
855 | /* sanity check: have we been passed a pointer? */ | |
856 | if (changelist == NULL) | |
857 | return -1; | |
858 | ||
859 | /* Only root variables can be updated... */ | |
705da579 | 860 | if ((*varp)->root->rootvar != *varp) |
8b93c638 JM |
861 | /* Not a root var */ |
862 | return -1; | |
863 | ||
864 | /* Save the selected stack frame, since we will need to change it | |
865 | in order to evaluate expressions. */ | |
866 | old_fi = selected_frame; | |
867 | ||
868 | /* Update the root variable. value_of_root can return NULL | |
869 | if the variable is no longer around, i.e. we stepped out of | |
73a93a32 JI |
870 | the frame in which a local existed. We are letting the |
871 | value_of_root variable dispose of the varobj if the type | |
872 | has changed. */ | |
873 | type_changed = 1; | |
705da579 | 874 | new = value_of_root (varp, &type_changed); |
8b93c638 | 875 | if (new == NULL) |
73a93a32 | 876 | { |
705da579 | 877 | (*varp)->error = 1; |
73a93a32 JI |
878 | return -1; |
879 | } | |
8b93c638 JM |
880 | |
881 | /* Initialize a stack for temporary results */ | |
882 | vpush (&result, NULL); | |
883 | ||
ae093f96 FN |
884 | /* If this is a "use_selected_frame" varobj, and its type has changed, |
885 | them note that it's changed. */ | |
886 | if (type_changed) | |
8b93c638 | 887 | { |
705da579 | 888 | vpush (&result, *varp); |
ae093f96 FN |
889 | changed++; |
890 | } | |
891 | /* If values are not equal, note that it's changed. | |
892 | There a couple of exceptions here, though. | |
893 | We don't want some types to be reported as "changed". */ | |
72330bd6 AC |
894 | else if (type_changeable (*varp) |
895 | && !my_value_equal ((*varp)->value, new, &error2)) | |
ae093f96 | 896 | { |
705da579 | 897 | vpush (&result, *varp); |
ae093f96 FN |
898 | changed++; |
899 | /* error2 replaces var->error since this new value | |
900 | WILL replace the old one. */ | |
705da579 | 901 | (*varp)->error = error2; |
8b93c638 | 902 | } |
8b93c638 JM |
903 | |
904 | /* We must always keep around the new value for this root | |
905 | variable expression, or we lose the updated children! */ | |
705da579 KS |
906 | value_free ((*varp)->value); |
907 | (*varp)->value = new; | |
8b93c638 JM |
908 | |
909 | /* Initialize a stack */ | |
910 | vpush (&stack, NULL); | |
911 | ||
912 | /* Push the root's children */ | |
705da579 | 913 | if ((*varp)->children != NULL) |
8b93c638 JM |
914 | { |
915 | struct varobj_child *c; | |
705da579 | 916 | for (c = (*varp)->children; c != NULL; c = c->next) |
8b93c638 JM |
917 | vpush (&stack, c->child); |
918 | } | |
919 | ||
920 | /* Walk through the children, reconstructing them all. */ | |
921 | v = vpop (&stack); | |
922 | while (v != NULL) | |
923 | { | |
924 | /* Push any children */ | |
925 | if (v->children != NULL) | |
926 | { | |
927 | struct varobj_child *c; | |
928 | for (c = v->children; c != NULL; c = c->next) | |
929 | vpush (&stack, c->child); | |
930 | } | |
931 | ||
932 | /* Update this variable */ | |
933 | new = value_of_child (v->parent, v->index); | |
934 | if (type_changeable (v) && !my_value_equal (v->value, new, &error2)) | |
935 | { | |
936 | /* Note that it's changed */ | |
937 | vpush (&result, v); | |
938 | changed++; | |
939 | } | |
940 | /* error2 replaces v->error since this new value | |
941 | WILL replace the old one. */ | |
942 | v->error = error2; | |
943 | ||
944 | /* We must always keep new values, since children depend on it. */ | |
945 | if (v->value != NULL) | |
946 | value_free (v->value); | |
947 | v->value = new; | |
948 | ||
949 | /* Get next child */ | |
950 | v = vpop (&stack); | |
951 | } | |
952 | ||
953 | /* Alloc (changed + 1) list entries */ | |
954 | /* FIXME: add a cleanup for the allocated list(s) | |
955 | because one day the select_frame called below can longjump */ | |
956 | *changelist = xmalloc ((changed + 1) * sizeof (struct varobj *)); | |
957 | if (changed > 1) | |
958 | { | |
959 | templist = xmalloc ((changed + 1) * sizeof (struct varobj *)); | |
960 | cv = templist; | |
961 | } | |
962 | else | |
963 | cv = *changelist; | |
964 | ||
965 | /* Copy from result stack to list */ | |
966 | vleft = changed; | |
967 | *cv = vpop (&result); | |
968 | while ((*cv != NULL) && (vleft > 0)) | |
969 | { | |
970 | vleft--; | |
971 | cv++; | |
972 | *cv = vpop (&result); | |
973 | } | |
974 | if (vleft) | |
975 | warning ("varobj_update: assertion failed - vleft <> 0"); | |
976 | ||
977 | if (changed > 1) | |
978 | { | |
979 | /* Now we revert the order. */ | |
72330bd6 AC |
980 | for (i = 0; i < changed; i++) |
981 | *(*changelist + i) = *(templist + changed - 1 - i); | |
8b93c638 JM |
982 | *(*changelist + changed) = NULL; |
983 | } | |
984 | ||
985 | /* Restore selected frame */ | |
986 | select_frame (old_fi, -1); | |
987 | ||
73a93a32 JI |
988 | if (type_changed) |
989 | return -2; | |
990 | else | |
991 | return changed; | |
8b93c638 JM |
992 | } |
993 | \f | |
994 | ||
995 | /* Helper functions */ | |
996 | ||
997 | /* | |
998 | * Variable object construction/destruction | |
999 | */ | |
1000 | ||
1001 | static int | |
fba45db2 KB |
1002 | delete_variable (struct cpstack **resultp, struct varobj *var, |
1003 | int only_children_p) | |
8b93c638 JM |
1004 | { |
1005 | int delcount = 0; | |
1006 | ||
1007 | delete_variable_1 (resultp, &delcount, var, | |
1008 | only_children_p, 1 /* remove_from_parent_p */ ); | |
1009 | ||
1010 | return delcount; | |
1011 | } | |
1012 | ||
1013 | /* Delete the variable object VAR and its children */ | |
1014 | /* IMPORTANT NOTE: If we delete a variable which is a child | |
1015 | and the parent is not removed we dump core. It must be always | |
1016 | initially called with remove_from_parent_p set */ | |
1017 | static void | |
72330bd6 AC |
1018 | delete_variable_1 (struct cpstack **resultp, int *delcountp, |
1019 | struct varobj *var, int only_children_p, | |
1020 | int remove_from_parent_p) | |
8b93c638 JM |
1021 | { |
1022 | struct varobj_child *vc; | |
1023 | struct varobj_child *next; | |
1024 | ||
1025 | /* Delete any children of this variable, too. */ | |
1026 | for (vc = var->children; vc != NULL; vc = next) | |
1027 | { | |
1028 | if (!remove_from_parent_p) | |
1029 | vc->child->parent = NULL; | |
1030 | delete_variable_1 (resultp, delcountp, vc->child, 0, only_children_p); | |
1031 | next = vc->next; | |
b8c9b27d | 1032 | xfree (vc); |
8b93c638 JM |
1033 | } |
1034 | ||
1035 | /* if we were called to delete only the children we are done here */ | |
1036 | if (only_children_p) | |
1037 | return; | |
1038 | ||
1039 | /* Otherwise, add it to the list of deleted ones and proceed to do so */ | |
73a93a32 JI |
1040 | /* If the name is null, this is a temporary variable, that has not |
1041 | yet been installed, don't report it, it belongs to the caller... */ | |
1042 | if (var->obj_name != NULL) | |
8b93c638 | 1043 | { |
5b616ba1 | 1044 | cppush (resultp, xstrdup (var->obj_name)); |
8b93c638 JM |
1045 | *delcountp = *delcountp + 1; |
1046 | } | |
1047 | ||
1048 | /* If this variable has a parent, remove it from its parent's list */ | |
1049 | /* OPTIMIZATION: if the parent of this variable is also being deleted, | |
1050 | (as indicated by remove_from_parent_p) we don't bother doing an | |
1051 | expensive list search to find the element to remove when we are | |
1052 | discarding the list afterwards */ | |
72330bd6 | 1053 | if ((remove_from_parent_p) && (var->parent != NULL)) |
8b93c638 JM |
1054 | { |
1055 | remove_child_from_parent (var->parent, var); | |
1056 | } | |
72330bd6 | 1057 | |
73a93a32 JI |
1058 | if (var->obj_name != NULL) |
1059 | uninstall_variable (var); | |
8b93c638 JM |
1060 | |
1061 | /* Free memory associated with this variable */ | |
1062 | free_variable (var); | |
1063 | } | |
1064 | ||
1065 | /* Install the given variable VAR with the object name VAR->OBJ_NAME. */ | |
1066 | static int | |
fba45db2 | 1067 | install_variable (struct varobj *var) |
8b93c638 JM |
1068 | { |
1069 | struct vlist *cv; | |
1070 | struct vlist *newvl; | |
1071 | const char *chp; | |
1072 | unsigned int index = 0; | |
1073 | unsigned int i = 1; | |
1074 | ||
1075 | for (chp = var->obj_name; *chp; chp++) | |
1076 | { | |
1077 | index = (index + (i++ * (unsigned int) *chp)) % VAROBJ_TABLE_SIZE; | |
1078 | } | |
1079 | ||
1080 | cv = *(varobj_table + index); | |
1081 | while ((cv != NULL) && (strcmp (cv->var->obj_name, var->obj_name) != 0)) | |
1082 | cv = cv->next; | |
1083 | ||
1084 | if (cv != NULL) | |
1085 | error ("Duplicate variable object name"); | |
1086 | ||
1087 | /* Add varobj to hash table */ | |
1088 | newvl = xmalloc (sizeof (struct vlist)); | |
1089 | newvl->next = *(varobj_table + index); | |
1090 | newvl->var = var; | |
1091 | *(varobj_table + index) = newvl; | |
1092 | ||
1093 | /* If root, add varobj to root list */ | |
1094 | if (var->root->rootvar == var) | |
1095 | { | |
1096 | /* Add to list of root variables */ | |
1097 | if (rootlist == NULL) | |
1098 | var->root->next = NULL; | |
1099 | else | |
1100 | var->root->next = rootlist; | |
1101 | rootlist = var->root; | |
1102 | rootcount++; | |
1103 | } | |
1104 | ||
1105 | return 1; /* OK */ | |
1106 | } | |
1107 | ||
1108 | /* Unistall the object VAR. */ | |
1109 | static void | |
fba45db2 | 1110 | uninstall_variable (struct varobj *var) |
8b93c638 JM |
1111 | { |
1112 | struct vlist *cv; | |
1113 | struct vlist *prev; | |
1114 | struct varobj_root *cr; | |
1115 | struct varobj_root *prer; | |
1116 | const char *chp; | |
1117 | unsigned int index = 0; | |
1118 | unsigned int i = 1; | |
1119 | ||
1120 | /* Remove varobj from hash table */ | |
1121 | for (chp = var->obj_name; *chp; chp++) | |
1122 | { | |
1123 | index = (index + (i++ * (unsigned int) *chp)) % VAROBJ_TABLE_SIZE; | |
1124 | } | |
1125 | ||
1126 | cv = *(varobj_table + index); | |
1127 | prev = NULL; | |
1128 | while ((cv != NULL) && (strcmp (cv->var->obj_name, var->obj_name) != 0)) | |
1129 | { | |
1130 | prev = cv; | |
1131 | cv = cv->next; | |
1132 | } | |
1133 | ||
1134 | if (varobjdebug) | |
1135 | fprintf_unfiltered (gdb_stdlog, "Deleting %s\n", var->obj_name); | |
1136 | ||
1137 | if (cv == NULL) | |
1138 | { | |
72330bd6 AC |
1139 | warning |
1140 | ("Assertion failed: Could not find variable object \"%s\" to delete", | |
1141 | var->obj_name); | |
8b93c638 JM |
1142 | return; |
1143 | } | |
1144 | ||
1145 | if (prev == NULL) | |
1146 | *(varobj_table + index) = cv->next; | |
1147 | else | |
1148 | prev->next = cv->next; | |
1149 | ||
b8c9b27d | 1150 | xfree (cv); |
8b93c638 JM |
1151 | |
1152 | /* If root, remove varobj from root list */ | |
1153 | if (var->root->rootvar == var) | |
1154 | { | |
1155 | /* Remove from list of root variables */ | |
1156 | if (rootlist == var->root) | |
1157 | rootlist = var->root->next; | |
1158 | else | |
1159 | { | |
1160 | prer = NULL; | |
1161 | cr = rootlist; | |
1162 | while ((cr != NULL) && (cr->rootvar != var)) | |
1163 | { | |
1164 | prer = cr; | |
1165 | cr = cr->next; | |
1166 | } | |
1167 | if (cr == NULL) | |
1168 | { | |
72330bd6 AC |
1169 | warning |
1170 | ("Assertion failed: Could not find varobj \"%s\" in root list", | |
1171 | var->obj_name); | |
8b93c638 JM |
1172 | return; |
1173 | } | |
1174 | if (prer == NULL) | |
1175 | rootlist = NULL; | |
1176 | else | |
1177 | prer->next = cr->next; | |
1178 | } | |
1179 | rootcount--; | |
1180 | } | |
1181 | ||
1182 | } | |
1183 | ||
1184 | /* Does a child with the name NAME exist in VAR? If so, return its data. | |
1185 | If not, return NULL. */ | |
1186 | static struct varobj * | |
1669605f | 1187 | child_exists (struct varobj *var, char *name) |
8b93c638 JM |
1188 | { |
1189 | struct varobj_child *vc; | |
1190 | ||
1191 | for (vc = var->children; vc != NULL; vc = vc->next) | |
1192 | { | |
1193 | if (STREQ (vc->child->name, name)) | |
1194 | return vc->child; | |
1195 | } | |
1196 | ||
1197 | return NULL; | |
1198 | } | |
1199 | ||
1200 | /* Create and install a child of the parent of the given name */ | |
1201 | static struct varobj * | |
fba45db2 | 1202 | create_child (struct varobj *parent, int index, char *name) |
8b93c638 JM |
1203 | { |
1204 | struct varobj *child; | |
1205 | char *childs_name; | |
1206 | ||
1207 | child = new_variable (); | |
1208 | ||
1209 | /* name is allocated by name_of_child */ | |
1210 | child->name = name; | |
1211 | child->index = index; | |
1212 | child->value = value_of_child (parent, index); | |
575bbeb6 | 1213 | if ((!CPLUS_FAKE_CHILD(child) && child->value == NULL) || parent->error) |
8b93c638 JM |
1214 | child->error = 1; |
1215 | child->parent = parent; | |
1216 | child->root = parent->root; | |
72330bd6 AC |
1217 | childs_name = |
1218 | (char *) xmalloc ((strlen (parent->obj_name) + strlen (name) + 2) * | |
1219 | sizeof (char)); | |
8b93c638 JM |
1220 | sprintf (childs_name, "%s.%s", parent->obj_name, name); |
1221 | child->obj_name = childs_name; | |
1222 | install_variable (child); | |
1223 | ||
1224 | /* Save a pointer to this child in the parent */ | |
1225 | save_child_in_parent (parent, child); | |
1226 | ||
1227 | /* Note the type of this child */ | |
1228 | child->type = type_of_child (child); | |
1229 | ||
1230 | return child; | |
1231 | } | |
1232 | ||
1233 | /* FIXME: This should be a generic add to list */ | |
1234 | /* Save CHILD in the PARENT's data. */ | |
1235 | static void | |
fba45db2 | 1236 | save_child_in_parent (struct varobj *parent, struct varobj *child) |
8b93c638 JM |
1237 | { |
1238 | struct varobj_child *vc; | |
1239 | ||
1240 | /* Insert the child at the top */ | |
1241 | vc = parent->children; | |
1242 | parent->children = | |
1243 | (struct varobj_child *) xmalloc (sizeof (struct varobj_child)); | |
1244 | ||
1245 | parent->children->next = vc; | |
1246 | parent->children->child = child; | |
1247 | } | |
1248 | ||
1249 | /* FIXME: This should be a generic remove from list */ | |
1250 | /* Remove the CHILD from the PARENT's list of children. */ | |
1251 | static void | |
fba45db2 | 1252 | remove_child_from_parent (struct varobj *parent, struct varobj *child) |
8b93c638 JM |
1253 | { |
1254 | struct varobj_child *vc, *prev; | |
1255 | ||
1256 | /* Find the child in the parent's list */ | |
1257 | prev = NULL; | |
1258 | for (vc = parent->children; vc != NULL;) | |
1259 | { | |
1260 | if (vc->child == child) | |
1261 | break; | |
1262 | prev = vc; | |
1263 | vc = vc->next; | |
1264 | } | |
1265 | ||
1266 | if (prev == NULL) | |
1267 | parent->children = vc->next; | |
1268 | else | |
1269 | prev->next = vc->next; | |
1270 | ||
1271 | } | |
1272 | \f | |
1273 | ||
1274 | /* | |
1275 | * Miscellaneous utility functions. | |
1276 | */ | |
1277 | ||
1278 | /* Allocate memory and initialize a new variable */ | |
1279 | static struct varobj * | |
1280 | new_variable (void) | |
1281 | { | |
1282 | struct varobj *var; | |
1283 | ||
1284 | var = (struct varobj *) xmalloc (sizeof (struct varobj)); | |
1285 | var->name = NULL; | |
1286 | var->obj_name = NULL; | |
1287 | var->index = -1; | |
1288 | var->type = NULL; | |
1289 | var->value = NULL; | |
1290 | var->error = 0; | |
1291 | var->num_children = -1; | |
1292 | var->parent = NULL; | |
1293 | var->children = NULL; | |
1294 | var->format = 0; | |
1295 | var->root = NULL; | |
1296 | ||
1297 | return var; | |
1298 | } | |
1299 | ||
1300 | /* Allocate memory and initialize a new root variable */ | |
1301 | static struct varobj * | |
1302 | new_root_variable (void) | |
1303 | { | |
1304 | struct varobj *var = new_variable (); | |
1305 | var->root = (struct varobj_root *) xmalloc (sizeof (struct varobj_root));; | |
1306 | var->root->lang = NULL; | |
1307 | var->root->exp = NULL; | |
1308 | var->root->valid_block = NULL; | |
1309 | var->root->frame = (CORE_ADDR) -1; | |
73a93a32 | 1310 | var->root->use_selected_frame = 0; |
8b93c638 JM |
1311 | var->root->rootvar = NULL; |
1312 | ||
1313 | return var; | |
1314 | } | |
1315 | ||
1316 | /* Free any allocated memory associated with VAR. */ | |
1317 | static void | |
fba45db2 | 1318 | free_variable (struct varobj *var) |
8b93c638 JM |
1319 | { |
1320 | /* Free the expression if this is a root variable. */ | |
1321 | if (var->root->rootvar == var) | |
1322 | { | |
1323 | free_current_contents ((char **) &var->root->exp); | |
8038e1e2 | 1324 | xfree (var->root); |
8b93c638 JM |
1325 | } |
1326 | ||
8038e1e2 AC |
1327 | xfree (var->name); |
1328 | xfree (var->obj_name); | |
1329 | xfree (var); | |
8b93c638 JM |
1330 | } |
1331 | ||
74b7792f AC |
1332 | static void |
1333 | do_free_variable_cleanup (void *var) | |
1334 | { | |
1335 | free_variable (var); | |
1336 | } | |
1337 | ||
1338 | static struct cleanup * | |
1339 | make_cleanup_free_variable (struct varobj *var) | |
1340 | { | |
1341 | return make_cleanup (do_free_variable_cleanup, var); | |
1342 | } | |
1343 | ||
8b93c638 JM |
1344 | /* This returns the type of the variable. This skips past typedefs |
1345 | and returns the real type of the variable. It also dereferences | |
1346 | pointers and references. */ | |
1347 | static struct type * | |
fba45db2 | 1348 | get_type (struct varobj *var) |
8b93c638 JM |
1349 | { |
1350 | struct type *type; | |
1351 | type = var->type; | |
1352 | ||
1353 | while (type != NULL && TYPE_CODE (type) == TYPE_CODE_TYPEDEF) | |
1354 | type = TYPE_TARGET_TYPE (type); | |
1355 | ||
1356 | return type; | |
1357 | } | |
1358 | ||
1359 | /* This returns the type of the variable, dereferencing pointers, too. */ | |
1360 | static struct type * | |
fba45db2 | 1361 | get_type_deref (struct varobj *var) |
8b93c638 JM |
1362 | { |
1363 | struct type *type; | |
1364 | ||
1365 | type = get_type (var); | |
1366 | ||
1367 | if (type != NULL && (TYPE_CODE (type) == TYPE_CODE_PTR | |
1368 | || TYPE_CODE (type) == TYPE_CODE_REF)) | |
1369 | type = get_target_type (type); | |
1370 | ||
1371 | return type; | |
1372 | } | |
1373 | ||
1374 | /* This returns the target type (or NULL) of TYPE, also skipping | |
1375 | past typedefs, just like get_type (). */ | |
1376 | static struct type * | |
fba45db2 | 1377 | get_target_type (struct type *type) |
8b93c638 JM |
1378 | { |
1379 | if (type != NULL) | |
1380 | { | |
1381 | type = TYPE_TARGET_TYPE (type); | |
1382 | while (type != NULL && TYPE_CODE (type) == TYPE_CODE_TYPEDEF) | |
1383 | type = TYPE_TARGET_TYPE (type); | |
1384 | } | |
1385 | ||
1386 | return type; | |
1387 | } | |
1388 | ||
1389 | /* What is the default display for this variable? We assume that | |
1390 | everything is "natural". Any exceptions? */ | |
1391 | static enum varobj_display_formats | |
fba45db2 | 1392 | variable_default_display (struct varobj *var) |
8b93c638 JM |
1393 | { |
1394 | return FORMAT_NATURAL; | |
1395 | } | |
1396 | ||
1397 | /* This function is similar to gdb's value_equal, except that this | |
1398 | one is "safe" -- it NEVER longjmps. It determines if the VAR's | |
1399 | value is the same as VAL2. */ | |
1400 | static int | |
30b28db1 | 1401 | my_value_equal (struct value *val1, struct value *val2, int *error2) |
8b93c638 JM |
1402 | { |
1403 | int r, err1, err2; | |
1404 | ||
1405 | *error2 = 0; | |
1406 | /* Special case: NULL values. If both are null, say | |
1407 | they're equal. */ | |
1408 | if (val1 == NULL && val2 == NULL) | |
1409 | return 1; | |
1410 | else if (val1 == NULL || val2 == NULL) | |
1411 | return 0; | |
1412 | ||
1413 | /* This is bogus, but unfortunately necessary. We must know | |
1414 | exactly what caused an error -- reading val1 or val2 -- so | |
1415 | that we can really determine if we think that something has changed. */ | |
1416 | err1 = 0; | |
1417 | err2 = 0; | |
1418 | /* We do need to catch errors here because the whole purpose | |
1419 | is to test if value_equal() has errored */ | |
1420 | if (!gdb_value_equal (val1, val1, &r)) | |
1421 | err1 = 1; | |
1422 | ||
1423 | if (!gdb_value_equal (val2, val2, &r)) | |
1424 | *error2 = err2 = 1; | |
1425 | ||
1426 | if (err1 != err2) | |
1427 | return 0; | |
1428 | ||
1429 | if (!gdb_value_equal (val1, val2, &r)) | |
1430 | { | |
1431 | /* An error occurred, this could have happened if | |
1432 | either val1 or val2 errored. ERR1 and ERR2 tell | |
1433 | us which of these it is. If both errored, then | |
1434 | we assume nothing has changed. If one of them is | |
1435 | valid, though, then something has changed. */ | |
1436 | if (err1 == err2) | |
1437 | { | |
1438 | /* both the old and new values caused errors, so | |
1439 | we say the value did not change */ | |
1440 | /* This is indeterminate, though. Perhaps we should | |
1441 | be safe and say, yes, it changed anyway?? */ | |
1442 | return 1; | |
1443 | } | |
1444 | else | |
1445 | { | |
1446 | return 0; | |
1447 | } | |
1448 | } | |
1449 | ||
1450 | return r; | |
1451 | } | |
1452 | ||
1453 | /* FIXME: The following should be generic for any pointer */ | |
1454 | static void | |
fba45db2 | 1455 | vpush (struct vstack **pstack, struct varobj *var) |
8b93c638 JM |
1456 | { |
1457 | struct vstack *s; | |
1458 | ||
1459 | s = (struct vstack *) xmalloc (sizeof (struct vstack)); | |
1460 | s->var = var; | |
1461 | s->next = *pstack; | |
1462 | *pstack = s; | |
1463 | } | |
1464 | ||
1465 | /* FIXME: The following should be generic for any pointer */ | |
1466 | static struct varobj * | |
fba45db2 | 1467 | vpop (struct vstack **pstack) |
8b93c638 JM |
1468 | { |
1469 | struct vstack *s; | |
1470 | struct varobj *v; | |
1471 | ||
1472 | if ((*pstack)->var == NULL && (*pstack)->next == NULL) | |
1473 | return NULL; | |
1474 | ||
1475 | s = *pstack; | |
1476 | v = s->var; | |
1477 | *pstack = (*pstack)->next; | |
b8c9b27d | 1478 | xfree (s); |
8b93c638 JM |
1479 | |
1480 | return v; | |
1481 | } | |
1482 | ||
1483 | /* FIXME: The following should be generic for any pointer */ | |
1484 | static void | |
fba45db2 | 1485 | cppush (struct cpstack **pstack, char *name) |
8b93c638 JM |
1486 | { |
1487 | struct cpstack *s; | |
1488 | ||
1489 | s = (struct cpstack *) xmalloc (sizeof (struct cpstack)); | |
1490 | s->name = name; | |
1491 | s->next = *pstack; | |
1492 | *pstack = s; | |
1493 | } | |
1494 | ||
1495 | /* FIXME: The following should be generic for any pointer */ | |
1496 | static char * | |
fba45db2 | 1497 | cppop (struct cpstack **pstack) |
8b93c638 JM |
1498 | { |
1499 | struct cpstack *s; | |
1500 | char *v; | |
1501 | ||
1502 | if ((*pstack)->name == NULL && (*pstack)->next == NULL) | |
1503 | return NULL; | |
1504 | ||
1505 | s = *pstack; | |
1506 | v = s->name; | |
1507 | *pstack = (*pstack)->next; | |
b8c9b27d | 1508 | xfree (s); |
8b93c638 JM |
1509 | |
1510 | return v; | |
1511 | } | |
1512 | \f | |
1513 | /* | |
1514 | * Language-dependencies | |
1515 | */ | |
1516 | ||
1517 | /* Common entry points */ | |
1518 | ||
1519 | /* Get the language of variable VAR. */ | |
1520 | static enum varobj_languages | |
fba45db2 | 1521 | variable_language (struct varobj *var) |
8b93c638 JM |
1522 | { |
1523 | enum varobj_languages lang; | |
1524 | ||
1525 | switch (var->root->exp->language_defn->la_language) | |
1526 | { | |
1527 | default: | |
1528 | case language_c: | |
1529 | lang = vlang_c; | |
1530 | break; | |
1531 | case language_cplus: | |
1532 | lang = vlang_cplus; | |
1533 | break; | |
1534 | case language_java: | |
1535 | lang = vlang_java; | |
1536 | break; | |
1537 | } | |
1538 | ||
1539 | return lang; | |
1540 | } | |
1541 | ||
1542 | /* Return the number of children for a given variable. | |
1543 | The result of this function is defined by the language | |
1544 | implementation. The number of children returned by this function | |
1545 | is the number of children that the user will see in the variable | |
1546 | display. */ | |
1547 | static int | |
fba45db2 | 1548 | number_of_children (struct varobj *var) |
8b93c638 JM |
1549 | { |
1550 | return (*var->root->lang->number_of_children) (var);; | |
1551 | } | |
1552 | ||
1553 | /* What is the expression for the root varobj VAR? Returns a malloc'd string. */ | |
1554 | static char * | |
fba45db2 | 1555 | name_of_variable (struct varobj *var) |
8b93c638 JM |
1556 | { |
1557 | return (*var->root->lang->name_of_variable) (var); | |
1558 | } | |
1559 | ||
1560 | /* What is the name of the INDEX'th child of VAR? Returns a malloc'd string. */ | |
1561 | static char * | |
fba45db2 | 1562 | name_of_child (struct varobj *var, int index) |
8b93c638 JM |
1563 | { |
1564 | return (*var->root->lang->name_of_child) (var, index); | |
1565 | } | |
1566 | ||
30b28db1 | 1567 | /* What is the ``struct value *'' of the root variable VAR? |
73a93a32 JI |
1568 | TYPE_CHANGED controls what to do if the type of a |
1569 | use_selected_frame = 1 variable changes. On input, | |
1570 | TYPE_CHANGED = 1 means discard the old varobj, and replace | |
1571 | it with this one. TYPE_CHANGED = 0 means leave it around. | |
1572 | NB: In both cases, var_handle will point to the new varobj, | |
1573 | so if you use TYPE_CHANGED = 0, you will have to stash the | |
1574 | old varobj pointer away somewhere before calling this. | |
1575 | On return, TYPE_CHANGED will be 1 if the type has changed, and | |
1576 | 0 otherwise. */ | |
30b28db1 | 1577 | static struct value * |
fba45db2 | 1578 | value_of_root (struct varobj **var_handle, int *type_changed) |
8b93c638 | 1579 | { |
73a93a32 JI |
1580 | struct varobj *var; |
1581 | ||
1582 | if (var_handle == NULL) | |
1583 | return NULL; | |
1584 | ||
1585 | var = *var_handle; | |
1586 | ||
1587 | /* This should really be an exception, since this should | |
1588 | only get called with a root variable. */ | |
1589 | ||
1590 | if (var->root->rootvar != var) | |
1591 | return NULL; | |
1592 | ||
1593 | if (var->root->use_selected_frame) | |
1594 | { | |
1595 | struct varobj *tmp_var; | |
1596 | char *old_type, *new_type; | |
1597 | old_type = varobj_get_type (var); | |
1598 | tmp_var = varobj_create (NULL, var->name, (CORE_ADDR) 0, | |
1599 | USE_SELECTED_FRAME); | |
1600 | if (tmp_var == NULL) | |
1601 | { | |
1602 | return NULL; | |
1603 | } | |
1604 | new_type = varobj_get_type (tmp_var); | |
72330bd6 | 1605 | if (strcmp (old_type, new_type) == 0) |
73a93a32 JI |
1606 | { |
1607 | varobj_delete (tmp_var, NULL, 0); | |
1608 | *type_changed = 0; | |
1609 | } | |
1610 | else | |
1611 | { | |
1612 | if (*type_changed) | |
1613 | { | |
72330bd6 | 1614 | tmp_var->obj_name = |
73a93a32 | 1615 | savestring (var->obj_name, strlen (var->obj_name)); |
f7635dd9 | 1616 | varobj_delete (var, NULL, 0); |
73a93a32 JI |
1617 | } |
1618 | else | |
1619 | { | |
72330bd6 | 1620 | tmp_var->obj_name = varobj_gen_name (); |
73a93a32 JI |
1621 | } |
1622 | install_variable (tmp_var); | |
1623 | *var_handle = tmp_var; | |
705da579 | 1624 | var = *var_handle; |
73a93a32 JI |
1625 | *type_changed = 1; |
1626 | } | |
1627 | } | |
1628 | else | |
1629 | { | |
1630 | *type_changed = 0; | |
1631 | } | |
1632 | ||
1633 | return (*var->root->lang->value_of_root) (var_handle); | |
8b93c638 JM |
1634 | } |
1635 | ||
30b28db1 AC |
1636 | /* What is the ``struct value *'' for the INDEX'th child of PARENT? */ |
1637 | static struct value * | |
fba45db2 | 1638 | value_of_child (struct varobj *parent, int index) |
8b93c638 | 1639 | { |
30b28db1 | 1640 | struct value *value; |
8b93c638 JM |
1641 | |
1642 | value = (*parent->root->lang->value_of_child) (parent, index); | |
1643 | ||
1644 | /* If we're being lazy, fetch the real value of the variable. */ | |
1645 | if (value != NULL && VALUE_LAZY (value)) | |
575bbeb6 KS |
1646 | { |
1647 | /* If we fail to fetch the value of the child, return | |
1648 | NULL so that callers notice that we're leaving an | |
1649 | error message. */ | |
1650 | if (!gdb_value_fetch_lazy (value)) | |
1651 | value = NULL; | |
1652 | } | |
8b93c638 JM |
1653 | |
1654 | return value; | |
1655 | } | |
1656 | ||
1657 | /* What is the type of VAR? */ | |
1658 | static struct type * | |
fba45db2 | 1659 | type_of_child (struct varobj *var) |
8b93c638 JM |
1660 | { |
1661 | ||
1662 | /* If the child had no evaluation errors, var->value | |
1663 | will be non-NULL and contain a valid type. */ | |
1664 | if (var->value != NULL) | |
1665 | return VALUE_TYPE (var->value); | |
1666 | ||
1667 | /* Otherwise, we must compute the type. */ | |
1668 | return (*var->root->lang->type_of_child) (var->parent, var->index); | |
1669 | } | |
1670 | ||
1671 | /* Is this variable editable? Use the variable's type to make | |
1672 | this determination. */ | |
1673 | static int | |
fba45db2 | 1674 | variable_editable (struct varobj *var) |
8b93c638 JM |
1675 | { |
1676 | return (*var->root->lang->variable_editable) (var); | |
1677 | } | |
1678 | ||
1679 | /* GDB already has a command called "value_of_variable". Sigh. */ | |
1680 | static char * | |
fba45db2 | 1681 | my_value_of_variable (struct varobj *var) |
8b93c638 JM |
1682 | { |
1683 | return (*var->root->lang->value_of_variable) (var); | |
1684 | } | |
1685 | ||
1686 | /* Is VAR something that can change? Depending on language, | |
1687 | some variable's values never change. For example, | |
1688 | struct and unions never change values. */ | |
1689 | static int | |
fba45db2 | 1690 | type_changeable (struct varobj *var) |
8b93c638 JM |
1691 | { |
1692 | int r; | |
1693 | struct type *type; | |
1694 | ||
1695 | if (CPLUS_FAKE_CHILD (var)) | |
1696 | return 0; | |
1697 | ||
1698 | type = get_type (var); | |
1699 | ||
1700 | switch (TYPE_CODE (type)) | |
1701 | { | |
72330bd6 AC |
1702 | case TYPE_CODE_STRUCT: |
1703 | case TYPE_CODE_UNION: | |
1704 | case TYPE_CODE_ARRAY: | |
1705 | r = 0; | |
1706 | break; | |
8b93c638 | 1707 | |
72330bd6 AC |
1708 | default: |
1709 | r = 1; | |
8b93c638 JM |
1710 | } |
1711 | ||
1712 | return r; | |
1713 | } | |
1714 | ||
1715 | /* C */ | |
1716 | static int | |
fba45db2 | 1717 | c_number_of_children (struct varobj *var) |
8b93c638 JM |
1718 | { |
1719 | struct type *type; | |
1720 | struct type *target; | |
1721 | int children; | |
1722 | ||
1723 | type = get_type (var); | |
1724 | target = get_target_type (type); | |
1725 | children = 0; | |
1726 | ||
1727 | switch (TYPE_CODE (type)) | |
1728 | { | |
1729 | case TYPE_CODE_ARRAY: | |
1730 | if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (target) > 0 | |
72330bd6 | 1731 | && TYPE_ARRAY_UPPER_BOUND_TYPE (type) != BOUND_CANNOT_BE_DETERMINED) |
8b93c638 JM |
1732 | children = TYPE_LENGTH (type) / TYPE_LENGTH (target); |
1733 | else | |
1734 | children = -1; | |
1735 | break; | |
1736 | ||
1737 | case TYPE_CODE_STRUCT: | |
1738 | case TYPE_CODE_UNION: | |
1739 | children = TYPE_NFIELDS (type); | |
1740 | break; | |
1741 | ||
1742 | case TYPE_CODE_PTR: | |
1743 | /* This is where things get compilcated. All pointers have one child. | |
1744 | Except, of course, for struct and union ptr, which we automagically | |
0755e6c1 FN |
1745 | dereference for the user and function ptrs, which have no children. |
1746 | We also don't dereference void* as we don't know what to show. | |
1747 | We can show char* so we allow it to be dereferenced. If you decide | |
1748 | to test for it, please mind that a little magic is necessary to | |
1749 | properly identify it: char* has TYPE_CODE == TYPE_CODE_INT and | |
1750 | TYPE_NAME == "char" */ | |
1751 | ||
8b93c638 JM |
1752 | switch (TYPE_CODE (target)) |
1753 | { | |
1754 | case TYPE_CODE_STRUCT: | |
1755 | case TYPE_CODE_UNION: | |
1756 | children = TYPE_NFIELDS (target); | |
1757 | break; | |
1758 | ||
1759 | case TYPE_CODE_FUNC: | |
0755e6c1 | 1760 | case TYPE_CODE_VOID: |
8b93c638 JM |
1761 | children = 0; |
1762 | break; | |
1763 | ||
1764 | default: | |
0755e6c1 | 1765 | children = 1; |
8b93c638 JM |
1766 | } |
1767 | break; | |
1768 | ||
1769 | default: | |
1770 | /* Other types have no children */ | |
1771 | break; | |
1772 | } | |
1773 | ||
1774 | return children; | |
1775 | } | |
1776 | ||
1777 | static char * | |
fba45db2 | 1778 | c_name_of_variable (struct varobj *parent) |
8b93c638 JM |
1779 | { |
1780 | return savestring (parent->name, strlen (parent->name)); | |
1781 | } | |
1782 | ||
1783 | static char * | |
fba45db2 | 1784 | c_name_of_child (struct varobj *parent, int index) |
8b93c638 JM |
1785 | { |
1786 | struct type *type; | |
1787 | struct type *target; | |
1788 | char *name; | |
1789 | char *string; | |
1790 | ||
1791 | type = get_type (parent); | |
1792 | target = get_target_type (type); | |
1793 | ||
1794 | switch (TYPE_CODE (type)) | |
1795 | { | |
1796 | case TYPE_CODE_ARRAY: | |
1797 | { | |
1798 | /* We never get here unless parent->num_children is greater than 0... */ | |
1799 | int len = 1; | |
1800 | while ((int) pow ((double) 10, (double) len) < index) | |
1801 | len++; | |
1802 | name = (char *) xmalloc (1 + len * sizeof (char)); | |
1803 | sprintf (name, "%d", index); | |
1804 | } | |
1805 | break; | |
1806 | ||
1807 | case TYPE_CODE_STRUCT: | |
1808 | case TYPE_CODE_UNION: | |
1809 | string = TYPE_FIELD_NAME (type, index); | |
1810 | name = savestring (string, strlen (string)); | |
1811 | break; | |
1812 | ||
1813 | case TYPE_CODE_PTR: | |
1814 | switch (TYPE_CODE (target)) | |
1815 | { | |
1816 | case TYPE_CODE_STRUCT: | |
1817 | case TYPE_CODE_UNION: | |
1818 | string = TYPE_FIELD_NAME (target, index); | |
1819 | name = savestring (string, strlen (string)); | |
1820 | break; | |
1821 | ||
1822 | default: | |
72330bd6 AC |
1823 | name = |
1824 | (char *) xmalloc ((strlen (parent->name) + 2) * sizeof (char)); | |
8b93c638 JM |
1825 | sprintf (name, "*%s", parent->name); |
1826 | break; | |
1827 | } | |
1828 | break; | |
1829 | ||
1830 | default: | |
1831 | /* This should not happen */ | |
1832 | name = xstrdup ("???"); | |
1833 | } | |
1834 | ||
1835 | return name; | |
1836 | } | |
1837 | ||
30b28db1 | 1838 | static struct value * |
fba45db2 | 1839 | c_value_of_root (struct varobj **var_handle) |
8b93c638 | 1840 | { |
30b28db1 | 1841 | struct value *new_val; |
73a93a32 | 1842 | struct varobj *var = *var_handle; |
8b93c638 JM |
1843 | struct frame_info *fi; |
1844 | int within_scope; | |
1845 | ||
73a93a32 JI |
1846 | /* Only root variables can be updated... */ |
1847 | if (var->root->rootvar != var) | |
1848 | /* Not a root var */ | |
1849 | return NULL; | |
1850 | ||
72330bd6 | 1851 | |
8b93c638 JM |
1852 | /* Determine whether the variable is still around. */ |
1853 | if (var->root->valid_block == NULL) | |
1854 | within_scope = 1; | |
1855 | else | |
1856 | { | |
1857 | reinit_frame_cache (); | |
72330bd6 AC |
1858 | |
1859 | ||
8b93c638 | 1860 | fi = find_frame_addr_in_frame_chain (var->root->frame); |
72330bd6 | 1861 | |
8b93c638 JM |
1862 | within_scope = fi != NULL; |
1863 | /* FIXME: select_frame could fail */ | |
1864 | if (within_scope) | |
1865 | select_frame (fi, -1); | |
1866 | } | |
72330bd6 | 1867 | |
8b93c638 JM |
1868 | if (within_scope) |
1869 | { | |
73a93a32 | 1870 | /* We need to catch errors here, because if evaluate |
72330bd6 AC |
1871 | expression fails we just want to make val->error = 1 and |
1872 | go on */ | |
8b93c638 JM |
1873 | if (gdb_evaluate_expression (var->root->exp, &new_val)) |
1874 | { | |
1875 | if (VALUE_LAZY (new_val)) | |
1876 | { | |
73a93a32 | 1877 | /* We need to catch errors because if |
72330bd6 AC |
1878 | value_fetch_lazy fails we still want to continue |
1879 | (after making val->error = 1) */ | |
73a93a32 | 1880 | /* FIXME: Shouldn't be using VALUE_CONTENTS? The |
72330bd6 AC |
1881 | comment on value_fetch_lazy() says it is only |
1882 | called from the macro... */ | |
8b93c638 JM |
1883 | if (!gdb_value_fetch_lazy (new_val)) |
1884 | var->error = 1; | |
1885 | else | |
1886 | var->error = 0; | |
1887 | } | |
1888 | } | |
1889 | else | |
1890 | var->error = 1; | |
72330bd6 | 1891 | |
8b93c638 JM |
1892 | release_value (new_val); |
1893 | return new_val; | |
1894 | } | |
1895 | ||
1896 | return NULL; | |
1897 | } | |
1898 | ||
30b28db1 | 1899 | static struct value * |
fba45db2 | 1900 | c_value_of_child (struct varobj *parent, int index) |
8b93c638 | 1901 | { |
30b28db1 AC |
1902 | struct value *value; |
1903 | struct value *temp; | |
1904 | struct value *indval; | |
8b93c638 JM |
1905 | struct type *type, *target; |
1906 | char *name; | |
1907 | ||
1908 | type = get_type (parent); | |
1909 | target = get_target_type (type); | |
1910 | name = name_of_child (parent, index); | |
1911 | temp = parent->value; | |
1912 | value = NULL; | |
1913 | ||
1914 | if (temp != NULL) | |
1915 | { | |
1916 | switch (TYPE_CODE (type)) | |
1917 | { | |
1918 | case TYPE_CODE_ARRAY: | |
8310b29b | 1919 | #if 0 |
72330bd6 | 1920 | /* This breaks if the array lives in a (vector) register. */ |
8b93c638 JM |
1921 | value = value_slice (temp, index, 1); |
1922 | temp = value_coerce_array (value); | |
1923 | gdb_value_ind (temp, &value); | |
8310b29b FN |
1924 | #else |
1925 | indval = value_from_longest (builtin_type_int, (LONGEST) index); | |
1926 | gdb_value_subscript (temp, indval, &value); | |
1927 | #endif | |
8b93c638 JM |
1928 | break; |
1929 | ||
1930 | case TYPE_CODE_STRUCT: | |
1931 | case TYPE_CODE_UNION: | |
30c6b1fb | 1932 | gdb_value_struct_elt (NULL, &value, &temp, NULL, name, NULL, "vstructure"); |
8b93c638 JM |
1933 | break; |
1934 | ||
1935 | case TYPE_CODE_PTR: | |
1936 | switch (TYPE_CODE (target)) | |
1937 | { | |
1938 | case TYPE_CODE_STRUCT: | |
1939 | case TYPE_CODE_UNION: | |
30c6b1fb | 1940 | gdb_value_struct_elt (NULL, &value, &temp, NULL, name, NULL, "vstructure"); |
8b93c638 JM |
1941 | break; |
1942 | ||
1943 | default: | |
1944 | gdb_value_ind (temp, &value); | |
1945 | break; | |
1946 | } | |
1947 | break; | |
1948 | ||
1949 | default: | |
1950 | break; | |
1951 | } | |
1952 | } | |
1953 | ||
1954 | if (value != NULL) | |
1955 | release_value (value); | |
1956 | ||
5bbc1a8e | 1957 | xfree (name); |
8b93c638 JM |
1958 | return value; |
1959 | } | |
1960 | ||
1961 | static struct type * | |
fba45db2 | 1962 | c_type_of_child (struct varobj *parent, int index) |
8b93c638 JM |
1963 | { |
1964 | struct type *type; | |
1965 | char *name = name_of_child (parent, index); | |
1966 | ||
1967 | switch (TYPE_CODE (parent->type)) | |
1968 | { | |
1969 | case TYPE_CODE_ARRAY: | |
1970 | type = TYPE_TARGET_TYPE (parent->type); | |
1971 | break; | |
1972 | ||
1973 | case TYPE_CODE_STRUCT: | |
1974 | case TYPE_CODE_UNION: | |
1975 | type = lookup_struct_elt_type (parent->type, name, 0); | |
1976 | break; | |
1977 | ||
1978 | case TYPE_CODE_PTR: | |
1979 | switch (TYPE_CODE (TYPE_TARGET_TYPE (parent->type))) | |
1980 | { | |
1981 | case TYPE_CODE_STRUCT: | |
1982 | case TYPE_CODE_UNION: | |
1983 | type = lookup_struct_elt_type (parent->type, name, 0); | |
1984 | break; | |
1985 | ||
1986 | default: | |
1987 | type = TYPE_TARGET_TYPE (parent->type); | |
1988 | break; | |
1989 | } | |
1990 | break; | |
1991 | ||
1992 | default: | |
1993 | /* This should not happen as only the above types have children */ | |
1994 | warning ("Child of parent whose type does not allow children"); | |
1995 | /* FIXME: Can we still go on? */ | |
1996 | type = NULL; | |
1997 | break; | |
1998 | } | |
1999 | ||
5bbc1a8e | 2000 | xfree (name); |
8b93c638 JM |
2001 | return type; |
2002 | } | |
2003 | ||
2004 | static int | |
fba45db2 | 2005 | c_variable_editable (struct varobj *var) |
8b93c638 JM |
2006 | { |
2007 | switch (TYPE_CODE (get_type (var))) | |
2008 | { | |
2009 | case TYPE_CODE_STRUCT: | |
2010 | case TYPE_CODE_UNION: | |
2011 | case TYPE_CODE_ARRAY: | |
2012 | case TYPE_CODE_FUNC: | |
2013 | case TYPE_CODE_MEMBER: | |
2014 | case TYPE_CODE_METHOD: | |
2015 | return 0; | |
2016 | break; | |
2017 | ||
2018 | default: | |
2019 | return 1; | |
2020 | break; | |
2021 | } | |
2022 | } | |
2023 | ||
2024 | static char * | |
fba45db2 | 2025 | c_value_of_variable (struct varobj *var) |
8b93c638 JM |
2026 | { |
2027 | struct type *type; | |
8b93c638 JM |
2028 | |
2029 | /* BOGUS: if val_print sees a struct/class, it will print out its | |
2030 | children instead of "{...}" */ | |
2031 | type = get_type (var); | |
2032 | switch (TYPE_CODE (type)) | |
2033 | { | |
2034 | case TYPE_CODE_STRUCT: | |
2035 | case TYPE_CODE_UNION: | |
2036 | return xstrdup ("{...}"); | |
2037 | /* break; */ | |
2038 | ||
2039 | case TYPE_CODE_ARRAY: | |
2040 | { | |
2041 | char number[18]; | |
2042 | sprintf (number, "[%d]", var->num_children); | |
2043 | return xstrdup (number); | |
2044 | } | |
2045 | /* break; */ | |
2046 | ||
2047 | default: | |
2048 | { | |
2049 | long dummy; | |
2050 | struct ui_file *stb = mem_fileopen (); | |
2051 | struct cleanup *old_chain = make_cleanup_ui_file_delete (stb); | |
2052 | char *thevalue; | |
2053 | ||
575bbeb6 KS |
2054 | if (var->value == NULL) |
2055 | { | |
2056 | /* This can happen if we attempt to get the value of a struct | |
2057 | member when the parent is an invalid pointer. This is an | |
2058 | error condition, so we should tell the caller. */ | |
2059 | return NULL; | |
2060 | } | |
2061 | else | |
2062 | { | |
2063 | if (VALUE_LAZY (var->value)) | |
2064 | gdb_value_fetch_lazy (var->value); | |
2065 | val_print (VALUE_TYPE (var->value), VALUE_CONTENTS_RAW (var->value), 0, | |
2066 | VALUE_ADDRESS (var->value), | |
2067 | stb, format_code[(int) var->format], 1, 0, 0); | |
2068 | thevalue = ui_file_xstrdup (stb, &dummy); | |
2069 | do_cleanups (old_chain); | |
2070 | } | |
2071 | ||
8b93c638 JM |
2072 | return thevalue; |
2073 | } | |
2074 | /* break; */ | |
2075 | } | |
2076 | } | |
2077 | \f | |
2078 | ||
2079 | /* C++ */ | |
2080 | ||
2081 | static int | |
fba45db2 | 2082 | cplus_number_of_children (struct varobj *var) |
8b93c638 JM |
2083 | { |
2084 | struct type *type; | |
2085 | int children, dont_know; | |
2086 | ||
2087 | dont_know = 1; | |
2088 | children = 0; | |
2089 | ||
2090 | if (!CPLUS_FAKE_CHILD (var)) | |
2091 | { | |
2092 | type = get_type_deref (var); | |
2093 | ||
2094 | if (((TYPE_CODE (type)) == TYPE_CODE_STRUCT) || | |
72330bd6 | 2095 | ((TYPE_CODE (type)) == TYPE_CODE_UNION)) |
8b93c638 JM |
2096 | { |
2097 | int kids[3]; | |
2098 | ||
2099 | cplus_class_num_children (type, kids); | |
2100 | if (kids[v_public] != 0) | |
2101 | children++; | |
2102 | if (kids[v_private] != 0) | |
2103 | children++; | |
2104 | if (kids[v_protected] != 0) | |
2105 | children++; | |
2106 | ||
2107 | /* Add any baseclasses */ | |
2108 | children += TYPE_N_BASECLASSES (type); | |
2109 | dont_know = 0; | |
2110 | ||
2111 | /* FIXME: save children in var */ | |
2112 | } | |
2113 | } | |
2114 | else | |
2115 | { | |
2116 | int kids[3]; | |
2117 | ||
2118 | type = get_type_deref (var->parent); | |
2119 | ||
2120 | cplus_class_num_children (type, kids); | |
2121 | if (STREQ (var->name, "public")) | |
2122 | children = kids[v_public]; | |
2123 | else if (STREQ (var->name, "private")) | |
2124 | children = kids[v_private]; | |
2125 | else | |
2126 | children = kids[v_protected]; | |
2127 | dont_know = 0; | |
2128 | } | |
2129 | ||
2130 | if (dont_know) | |
2131 | children = c_number_of_children (var); | |
2132 | ||
2133 | return children; | |
2134 | } | |
2135 | ||
2136 | /* Compute # of public, private, and protected variables in this class. | |
2137 | That means we need to descend into all baseclasses and find out | |
2138 | how many are there, too. */ | |
2139 | static void | |
1669605f | 2140 | cplus_class_num_children (struct type *type, int children[3]) |
8b93c638 JM |
2141 | { |
2142 | int i; | |
2143 | ||
2144 | children[v_public] = 0; | |
2145 | children[v_private] = 0; | |
2146 | children[v_protected] = 0; | |
2147 | ||
2148 | for (i = TYPE_N_BASECLASSES (type); i < TYPE_NFIELDS (type); i++) | |
2149 | { | |
2150 | /* If we have a virtual table pointer, omit it. */ | |
72330bd6 | 2151 | if (TYPE_VPTR_BASETYPE (type) == type && TYPE_VPTR_FIELDNO (type) == i) |
8b93c638 JM |
2152 | continue; |
2153 | ||
2154 | if (TYPE_FIELD_PROTECTED (type, i)) | |
2155 | children[v_protected]++; | |
2156 | else if (TYPE_FIELD_PRIVATE (type, i)) | |
2157 | children[v_private]++; | |
2158 | else | |
2159 | children[v_public]++; | |
2160 | } | |
2161 | } | |
2162 | ||
2163 | static char * | |
fba45db2 | 2164 | cplus_name_of_variable (struct varobj *parent) |
8b93c638 JM |
2165 | { |
2166 | return c_name_of_variable (parent); | |
2167 | } | |
2168 | ||
2169 | static char * | |
fba45db2 | 2170 | cplus_name_of_child (struct varobj *parent, int index) |
8b93c638 JM |
2171 | { |
2172 | char *name; | |
2173 | struct type *type; | |
2174 | int children[3]; | |
2175 | ||
2176 | if (CPLUS_FAKE_CHILD (parent)) | |
2177 | { | |
2178 | /* Looking for children of public, private, or protected. */ | |
2179 | type = get_type_deref (parent->parent); | |
2180 | } | |
2181 | else | |
2182 | type = get_type_deref (parent); | |
2183 | ||
2184 | name = NULL; | |
2185 | switch (TYPE_CODE (type)) | |
2186 | { | |
2187 | case TYPE_CODE_STRUCT: | |
2188 | case TYPE_CODE_UNION: | |
2189 | cplus_class_num_children (type, children); | |
2190 | ||
2191 | if (CPLUS_FAKE_CHILD (parent)) | |
2192 | { | |
575bbeb6 KS |
2193 | int i; |
2194 | ||
2195 | /* Skip over vptr, if it exists. */ | |
2196 | if (TYPE_VPTR_BASETYPE (type) == type | |
2197 | && index >= TYPE_VPTR_FIELDNO (type)) | |
2198 | index++; | |
2199 | ||
8b93c638 JM |
2200 | /* FIXME: This assumes that type orders |
2201 | inherited, public, private, protected */ | |
575bbeb6 KS |
2202 | i = index + TYPE_N_BASECLASSES (type); |
2203 | if (STREQ (parent->name, "private") || STREQ (parent->name, "protected")) | |
8b93c638 JM |
2204 | i += children[v_public]; |
2205 | if (STREQ (parent->name, "protected")) | |
2206 | i += children[v_private]; | |
2207 | ||
2208 | name = TYPE_FIELD_NAME (type, i); | |
2209 | } | |
2210 | else if (index < TYPE_N_BASECLASSES (type)) | |
2211 | name = TYPE_FIELD_NAME (type, index); | |
2212 | else | |
2213 | { | |
2214 | /* Everything beyond the baseclasses can | |
2215 | only be "public", "private", or "protected" */ | |
2216 | index -= TYPE_N_BASECLASSES (type); | |
2217 | switch (index) | |
2218 | { | |
2219 | case 0: | |
2220 | if (children[v_public] != 0) | |
2221 | { | |
2222 | name = "public"; | |
2223 | break; | |
2224 | } | |
2225 | case 1: | |
2226 | if (children[v_private] != 0) | |
2227 | { | |
2228 | name = "private"; | |
2229 | break; | |
2230 | } | |
2231 | case 2: | |
2232 | if (children[v_protected] != 0) | |
2233 | { | |
2234 | name = "protected"; | |
2235 | break; | |
2236 | } | |
2237 | default: | |
2238 | /* error! */ | |
2239 | break; | |
2240 | } | |
2241 | } | |
2242 | break; | |
2243 | ||
2244 | default: | |
2245 | break; | |
2246 | } | |
2247 | ||
2248 | if (name == NULL) | |
2249 | return c_name_of_child (parent, index); | |
2250 | else | |
2251 | { | |
2252 | if (name != NULL) | |
2253 | name = savestring (name, strlen (name)); | |
2254 | } | |
2255 | ||
2256 | return name; | |
2257 | } | |
2258 | ||
30b28db1 | 2259 | static struct value * |
fba45db2 | 2260 | cplus_value_of_root (struct varobj **var_handle) |
8b93c638 | 2261 | { |
73a93a32 | 2262 | return c_value_of_root (var_handle); |
8b93c638 JM |
2263 | } |
2264 | ||
30b28db1 | 2265 | static struct value * |
fba45db2 | 2266 | cplus_value_of_child (struct varobj *parent, int index) |
8b93c638 JM |
2267 | { |
2268 | struct type *type; | |
30b28db1 | 2269 | struct value *value; |
8b93c638 JM |
2270 | |
2271 | if (CPLUS_FAKE_CHILD (parent)) | |
2272 | type = get_type_deref (parent->parent); | |
2273 | else | |
2274 | type = get_type_deref (parent); | |
2275 | ||
2276 | value = NULL; | |
8b93c638 JM |
2277 | |
2278 | if (((TYPE_CODE (type)) == TYPE_CODE_STRUCT) || | |
2279 | ((TYPE_CODE (type)) == TYPE_CODE_UNION)) | |
2280 | { | |
2281 | if (CPLUS_FAKE_CHILD (parent)) | |
2282 | { | |
5bbc1a8e | 2283 | char *name; |
30b28db1 | 2284 | struct value *temp = parent->parent->value; |
30c6b1fb | 2285 | |
575bbeb6 KS |
2286 | if (temp == NULL) |
2287 | return NULL; | |
2288 | ||
5bbc1a8e | 2289 | name = name_of_child (parent, index); |
30c6b1fb KS |
2290 | gdb_value_struct_elt (NULL, &value, &temp, NULL, name, NULL, |
2291 | "cplus_structure"); | |
2292 | if (value != NULL) | |
2293 | release_value (value); | |
5bbc1a8e KS |
2294 | |
2295 | xfree (name); | |
8b93c638 JM |
2296 | } |
2297 | else if (index >= TYPE_N_BASECLASSES (type)) | |
2298 | { | |
2299 | /* public, private, or protected */ | |
2300 | return NULL; | |
2301 | } | |
2302 | else | |
2303 | { | |
2304 | /* Baseclass */ | |
2305 | if (parent->value != NULL) | |
2306 | { | |
575bbeb6 | 2307 | struct value *temp = NULL; |
8b93c638 JM |
2308 | |
2309 | if (TYPE_CODE (VALUE_TYPE (parent->value)) == TYPE_CODE_PTR | |
2310 | || TYPE_CODE (VALUE_TYPE (parent->value)) == TYPE_CODE_REF) | |
4abb499e KS |
2311 | { |
2312 | if (!gdb_value_ind (parent->value, &temp)) | |
2313 | return NULL; | |
2314 | } | |
8b93c638 JM |
2315 | else |
2316 | temp = parent->value; | |
2317 | ||
575bbeb6 KS |
2318 | if (temp != NULL) |
2319 | { | |
2320 | value = value_cast (TYPE_FIELD_TYPE (type, index), temp); | |
2321 | release_value (value); | |
2322 | } | |
2323 | else | |
2324 | { | |
2325 | /* We failed to evaluate the parent's value, so don't even | |
2326 | bother trying to evaluate this child. */ | |
2327 | return NULL; | |
2328 | } | |
8b93c638 JM |
2329 | } |
2330 | } | |
2331 | } | |
2332 | ||
2333 | if (value == NULL) | |
2334 | return c_value_of_child (parent, index); | |
2335 | ||
2336 | return value; | |
2337 | } | |
2338 | ||
2339 | static struct type * | |
fba45db2 | 2340 | cplus_type_of_child (struct varobj *parent, int index) |
8b93c638 JM |
2341 | { |
2342 | struct type *type, *t; | |
2343 | ||
575bbeb6 KS |
2344 | if (CPLUS_FAKE_CHILD (parent)) |
2345 | { | |
2346 | /* Looking for the type of a child of public, private, or protected. */ | |
2347 | t = get_type_deref (parent->parent); | |
2348 | } | |
2349 | else | |
2350 | t = get_type_deref (parent); | |
2351 | ||
8b93c638 JM |
2352 | type = NULL; |
2353 | switch (TYPE_CODE (t)) | |
2354 | { | |
2355 | case TYPE_CODE_STRUCT: | |
2356 | case TYPE_CODE_UNION: | |
575bbeb6 | 2357 | if (CPLUS_FAKE_CHILD (parent)) |
8b93c638 | 2358 | { |
575bbeb6 KS |
2359 | char *name = cplus_name_of_child (parent, index); |
2360 | type = lookup_struct_elt_type (t, name, 0); | |
2361 | xfree (name); | |
8b93c638 | 2362 | } |
575bbeb6 KS |
2363 | else if (index < TYPE_N_BASECLASSES (t)) |
2364 | type = TYPE_FIELD_TYPE (t, index); | |
8b93c638 JM |
2365 | else |
2366 | { | |
575bbeb6 KS |
2367 | /* special */ |
2368 | return NULL; | |
8b93c638 JM |
2369 | } |
2370 | break; | |
2371 | ||
2372 | default: | |
2373 | break; | |
2374 | } | |
2375 | ||
2376 | if (type == NULL) | |
2377 | return c_type_of_child (parent, index); | |
2378 | ||
2379 | return type; | |
2380 | } | |
2381 | ||
2382 | static int | |
fba45db2 | 2383 | cplus_variable_editable (struct varobj *var) |
8b93c638 JM |
2384 | { |
2385 | if (CPLUS_FAKE_CHILD (var)) | |
2386 | return 0; | |
2387 | ||
2388 | return c_variable_editable (var); | |
2389 | } | |
2390 | ||
2391 | static char * | |
fba45db2 | 2392 | cplus_value_of_variable (struct varobj *var) |
8b93c638 JM |
2393 | { |
2394 | ||
2395 | /* If we have one of our special types, don't print out | |
2396 | any value. */ | |
2397 | if (CPLUS_FAKE_CHILD (var)) | |
2398 | return xstrdup (""); | |
2399 | ||
2400 | return c_value_of_variable (var); | |
2401 | } | |
2402 | \f | |
2403 | /* Java */ | |
2404 | ||
2405 | static int | |
fba45db2 | 2406 | java_number_of_children (struct varobj *var) |
8b93c638 JM |
2407 | { |
2408 | return cplus_number_of_children (var); | |
2409 | } | |
2410 | ||
2411 | static char * | |
fba45db2 | 2412 | java_name_of_variable (struct varobj *parent) |
8b93c638 JM |
2413 | { |
2414 | char *p, *name; | |
2415 | ||
2416 | name = cplus_name_of_variable (parent); | |
2417 | /* If the name has "-" in it, it is because we | |
2418 | needed to escape periods in the name... */ | |
2419 | p = name; | |
2420 | ||
2421 | while (*p != '\000') | |
2422 | { | |
2423 | if (*p == '-') | |
2424 | *p = '.'; | |
2425 | p++; | |
2426 | } | |
2427 | ||
2428 | return name; | |
2429 | } | |
2430 | ||
2431 | static char * | |
fba45db2 | 2432 | java_name_of_child (struct varobj *parent, int index) |
8b93c638 JM |
2433 | { |
2434 | char *name, *p; | |
2435 | ||
2436 | name = cplus_name_of_child (parent, index); | |
2437 | /* Escape any periods in the name... */ | |
2438 | p = name; | |
2439 | ||
2440 | while (*p != '\000') | |
2441 | { | |
2442 | if (*p == '.') | |
2443 | *p = '-'; | |
2444 | p++; | |
2445 | } | |
2446 | ||
2447 | return name; | |
2448 | } | |
2449 | ||
30b28db1 | 2450 | static struct value * |
fba45db2 | 2451 | java_value_of_root (struct varobj **var_handle) |
8b93c638 | 2452 | { |
73a93a32 | 2453 | return cplus_value_of_root (var_handle); |
8b93c638 JM |
2454 | } |
2455 | ||
30b28db1 | 2456 | static struct value * |
fba45db2 | 2457 | java_value_of_child (struct varobj *parent, int index) |
8b93c638 JM |
2458 | { |
2459 | return cplus_value_of_child (parent, index); | |
2460 | } | |
2461 | ||
2462 | static struct type * | |
fba45db2 | 2463 | java_type_of_child (struct varobj *parent, int index) |
8b93c638 JM |
2464 | { |
2465 | return cplus_type_of_child (parent, index); | |
2466 | } | |
2467 | ||
2468 | static int | |
fba45db2 | 2469 | java_variable_editable (struct varobj *var) |
8b93c638 JM |
2470 | { |
2471 | return cplus_variable_editable (var); | |
2472 | } | |
2473 | ||
2474 | static char * | |
fba45db2 | 2475 | java_value_of_variable (struct varobj *var) |
8b93c638 JM |
2476 | { |
2477 | return cplus_value_of_variable (var); | |
2478 | } | |
2479 | \f | |
2480 | extern void _initialize_varobj (void); | |
2481 | void | |
2482 | _initialize_varobj (void) | |
2483 | { | |
2484 | int sizeof_table = sizeof (struct vlist *) * VAROBJ_TABLE_SIZE; | |
2485 | ||
2486 | varobj_table = xmalloc (sizeof_table); | |
2487 | memset (varobj_table, 0, sizeof_table); | |
2488 | ||
72330bd6 | 2489 | add_show_from_set (add_set_cmd ("debugvarobj", class_maintenance, var_zinteger, (char *) &varobjdebug, "Set varobj debugging.\n\ |
8b93c638 | 2490 | When non-zero, varobj debugging is enabled.", &setlist), |
72330bd6 | 2491 | &showlist); |
8b93c638 | 2492 | } |