1 /* MI Command Set - varobj commands.
3 Copyright 2000, 2002 Free Software Foundation, Inc.
5 Contributed by Cygnus Solutions (a Red Hat company).
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
32 extern int varobjdebug; /* defined in varobj.c */
34 static int varobj_update_one (struct varobj *var);
36 /* VAROBJ operations */
39 mi_cmd_var_create (char *command, char **argv, int argc)
41 CORE_ADDR frameaddr = 0;
47 struct cleanup *old_cleanups;
48 enum varobj_type var_type;
52 /* xasprintf (&mi_error_message,
53 "mi_cmd_var_create: Usage: .");
54 return MI_CMD_ERROR; */
55 error ("mi_cmd_var_create: Usage: NAME FRAME EXPRESSION.");
58 name = xstrdup (argv[0]);
59 /* Add cleanup for name. Must be free_current_contents as
60 name can be reallocated */
61 old_cleanups = make_cleanup (free_current_contents, &name);
63 frame = xstrdup (argv[1]);
64 old_cleanups = make_cleanup (xfree, frame);
66 expr = xstrdup (argv[2]);
68 if (strcmp (name, "-") == 0)
71 name = varobj_gen_name ();
73 else if (!isalpha (*name))
74 error ("mi_cmd_var_create: name of object must begin with a letter");
76 if (strcmp (frame, "*") == 0)
77 var_type = USE_CURRENT_FRAME;
78 else if (strcmp (frame, "@") == 0)
79 var_type = USE_SELECTED_FRAME;
82 var_type = USE_SPECIFIED_FRAME;
83 frameaddr = parse_and_eval_address (frame);
87 fprintf_unfiltered (gdb_stdlog,
88 "Name=\"%s\", Frame=\"%s\" (0x%s), Expression=\"%s\"\n",
89 name, frame, paddr (frameaddr), expr);
91 var = varobj_create (name, expr, frameaddr, var_type);
94 error ("mi_cmd_var_create: unable to create variable object");
96 ui_out_field_string (uiout, "name", name);
97 ui_out_field_int (uiout, "numchild", varobj_get_num_children (var));
98 type = varobj_get_type (var);
100 ui_out_field_string (uiout, "type", "");
103 ui_out_field_string (uiout, "type", type);
107 do_cleanups (old_cleanups);
112 mi_cmd_var_delete (char *command, char **argv, int argc)
118 int children_only_p = 0;
119 struct cleanup *old_cleanups;
121 if (argc < 1 || argc > 2)
122 error ("mi_cmd_var_delete: Usage: [-c] EXPRESSION.");
124 name = xstrdup (argv[0]);
125 /* Add cleanup for name. Must be free_current_contents as
126 name can be reallocated */
127 old_cleanups = make_cleanup (free_current_contents, &name);
129 /* If we have one single argument it cannot be '-c' or any string
130 starting with '-'. */
133 if (strcmp (name, "-c") == 0)
134 error ("mi_cmd_var_delete: Missing required argument after '-c': variable object name");
136 error ("mi_cmd_var_delete: Illegal variable object name");
139 /* If we have 2 arguments they must be '-c' followed by a string
140 which would be the variable name. */
143 expr = xstrdup (argv[1]);
144 if (strcmp (name, "-c") != 0)
145 error ("mi_cmd_var_delete: Invalid option.");
148 name = xstrdup (expr);
152 /* If we didn't error out, now NAME contains the name of the
155 var = varobj_get_handle (name);
158 error ("mi_cmd_var_delete: Variable object not found.");
160 numdel = varobj_delete (var, NULL, children_only_p);
162 ui_out_field_int (uiout, "ndeleted", numdel);
164 do_cleanups (old_cleanups);
169 mi_cmd_var_set_format (char *command, char **argv, int argc)
171 enum varobj_display_formats format;
177 error ("mi_cmd_var_set_format: Usage: NAME FORMAT.");
179 /* Get varobj handle, if a valid var obj name was specified */
180 var = varobj_get_handle (argv[0]);
183 error ("mi_cmd_var_set_format: Variable object not found");
185 formspec = xstrdup (argv[1]);
186 if (formspec == NULL)
187 error ("mi_cmd_var_set_format: Must specify the format as: \"natural\", \"binary\", \"decimal\", \"hexadecimal\", or \"octal\"");
189 len = strlen (formspec);
191 if (STREQN (formspec, "natural", len))
192 format = FORMAT_NATURAL;
193 else if (STREQN (formspec, "binary", len))
194 format = FORMAT_BINARY;
195 else if (STREQN (formspec, "decimal", len))
196 format = FORMAT_DECIMAL;
197 else if (STREQN (formspec, "hexadecimal", len))
198 format = FORMAT_HEXADECIMAL;
199 else if (STREQN (formspec, "octal", len))
200 format = FORMAT_OCTAL;
202 error ("mi_cmd_var_set_format: Unknown display format: must be: \"natural\", \"binary\", \"decimal\", \"hexadecimal\", or \"octal\"");
204 /* Set the format of VAR to given format */
205 varobj_set_display_format (var, format);
207 /* Report the new current format */
208 ui_out_field_string (uiout, "format", varobj_format_string[(int) format]);
213 mi_cmd_var_show_format (char *command, char **argv, int argc)
215 enum varobj_display_formats format;
219 error ("mi_cmd_var_show_format: Usage: NAME.");
221 /* Get varobj handle, if a valid var obj name was specified */
222 var = varobj_get_handle (argv[0]);
224 error ("mi_cmd_var_show_format: Variable object not found");
226 format = varobj_get_display_format (var);
228 /* Report the current format */
229 ui_out_field_string (uiout, "format", varobj_format_string[(int) format]);
234 mi_cmd_var_info_num_children (char *command, char **argv, int argc)
239 error ("mi_cmd_var_info_num_children: Usage: NAME.");
241 /* Get varobj handle, if a valid var obj name was specified */
242 var = varobj_get_handle (argv[0]);
244 error ("mi_cmd_var_info_num_children: Variable object not found");
246 ui_out_field_int (uiout, "numchild", varobj_get_num_children (var));
251 mi_cmd_var_list_children (char *command, char **argv, int argc)
254 struct varobj **childlist;
260 error ("mi_cmd_var_list_children: Usage: NAME.");
262 /* Get varobj handle, if a valid var obj name was specified */
263 var = varobj_get_handle (argv[0]);
265 error ("mi_cmd_var_list_children: Variable object not found");
267 numchild = varobj_list_children (var, &childlist);
268 ui_out_field_int (uiout, "numchild", numchild);
273 ui_out_tuple_begin (uiout, "children");
277 ui_out_tuple_begin (uiout, "child");
278 ui_out_field_string (uiout, "name", varobj_get_objname (*cc));
279 ui_out_field_string (uiout, "exp", varobj_get_expression (*cc));
280 ui_out_field_int (uiout, "numchild", varobj_get_num_children (*cc));
281 type = varobj_get_type (*cc);
282 /* C++ pseudo-variables (public, private, protected) do not have a type */
284 ui_out_field_string (uiout, "type", varobj_get_type (*cc));
285 ui_out_tuple_end (uiout);
288 ui_out_tuple_end (uiout);
294 mi_cmd_var_info_type (char *command, char **argv, int argc)
299 error ("mi_cmd_var_info_type: Usage: NAME.");
301 /* Get varobj handle, if a valid var obj name was specified */
302 var = varobj_get_handle (argv[0]);
304 error ("mi_cmd_var_info_type: Variable object not found");
306 ui_out_field_string (uiout, "type", varobj_get_type (var));
311 mi_cmd_var_info_expression (char *command, char **argv, int argc)
313 enum varobj_languages lang;
317 error ("mi_cmd_var_info_expression: Usage: NAME.");
319 /* Get varobj handle, if a valid var obj name was specified */
320 var = varobj_get_handle (argv[0]);
322 error ("mi_cmd_var_info_expression: Variable object not found");
324 lang = varobj_get_language (var);
326 ui_out_field_string (uiout, "lang", varobj_language_string[(int) lang]);
327 ui_out_field_string (uiout, "exp", varobj_get_expression (var));
332 mi_cmd_var_show_attributes (char *command, char **argv, int argc)
339 error ("mi_cmd_var_show_attributes: Usage: NAME.");
341 /* Get varobj handle, if a valid var obj name was specified */
342 var = varobj_get_handle (argv[0]);
344 error ("mi_cmd_var_show_attributes: Variable object not found");
346 attr = varobj_get_attributes (var);
347 /* FIXME: define masks for attributes */
348 if (attr & 0x00000001)
351 attstr = "noneditable";
353 ui_out_field_string (uiout, "attr", attstr);
358 mi_cmd_var_evaluate_expression (char *command, char **argv, int argc)
363 error ("mi_cmd_var_evaluate_expression: Usage: NAME.");
365 /* Get varobj handle, if a valid var obj name was specified */
366 var = varobj_get_handle (argv[0]);
368 error ("mi_cmd_var_evaluate_expression: Variable object not found");
370 ui_out_field_string (uiout, "value", varobj_get_value (var));
375 mi_cmd_var_assign (char *command, char **argv, int argc)
381 error ("mi_cmd_var_assign: Usage: NAME EXPRESSION.");
383 /* Get varobj handle, if a valid var obj name was specified */
384 var = varobj_get_handle (argv[0]);
386 error ("mi_cmd_var_assign: Variable object not found");
388 /* FIXME: define masks for attributes */
389 if (!(varobj_get_attributes (var) & 0x00000001))
390 error ("mi_cmd_var_assign: Variable object is not editable");
392 expression = xstrdup (argv[1]);
394 if (!varobj_set_value (var, expression))
395 error ("mi_cmd_var_assign: Could not assign expression to varible object");
397 ui_out_field_string (uiout, "value", varobj_get_value (var));
402 mi_cmd_var_update (char *command, char **argv, int argc)
405 struct varobj **rootlist;
411 error ("mi_cmd_var_update: Usage: NAME.");
415 /* Check if the parameter is a "*" which means that we want
416 to update all variables */
418 if ((*name == '*') && (*(name + 1) == '\0'))
420 nv = varobj_list (&rootlist);
421 ui_out_tuple_begin (uiout, "changelist");
424 ui_out_tuple_end (uiout);
430 varobj_update_one (*cr);
434 ui_out_tuple_end (uiout);
438 /* Get varobj handle, if a valid var obj name was specified */
439 var = varobj_get_handle (name);
441 error ("mi_cmd_var_update: Variable object not found");
443 ui_out_tuple_begin (uiout, "changelist");
444 varobj_update_one (var);
445 ui_out_tuple_end (uiout);
450 /* Helper for mi_cmd_var_update() Returns 0 if the update for
451 the variable fails (usually because the variable is out of
452 scope), and 1 if it succeeds. */
455 varobj_update_one (struct varobj *var)
457 struct varobj **changelist;
461 nc = varobj_update (&var, &changelist);
463 /* nc == 0 means that nothing has changed.
464 nc == -1 means that an error occured in updating the variable.
465 nc == -2 means the variable has changed type. */
471 ui_out_field_string (uiout, "name", varobj_get_objname(var));
472 ui_out_field_string (uiout, "in_scope", "false");
477 ui_out_field_string (uiout, "name", varobj_get_objname (var));
478 ui_out_field_string (uiout, "in_scope", "true");
479 ui_out_field_string (uiout, "new_type", varobj_get_type(var));
480 ui_out_field_int (uiout, "new_num_children",
481 varobj_get_num_children(var));
489 ui_out_field_string (uiout, "name", varobj_get_objname (*cc));
490 ui_out_field_string (uiout, "in_scope", "true");
491 ui_out_field_string (uiout, "type_changed", "false");