gdb/mi/mi-cmd-var.c

   1 /* MI Command Set - varobj commands.
   2
   3    Copyright (C) 2000, 2002, 2004, 2005, 2007, 2008, 2009, 2010, 2011
   4    Free Software Foundation, Inc.
   5
   6    Contributed by Cygnus Solutions (a Red Hat company).
   7
   8    This file is part of GDB.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  22
  23 #include "defs.h"
  24 #include "mi-cmds.h"
  25 #include "ui-out.h"
  26 #include "mi-out.h"
  27 #include "varobj.h"
  28 #include "value.h"
  29 #include <ctype.h>
  30 #include "gdb_string.h"
  31 #include "mi-getopt.h"
  32 #include "gdbthread.h"
  33
  34 const char mi_no_values[] = "--no-values";
  35 const char mi_simple_values[] = "--simple-values";
  36 const char mi_all_values[] = "--all-values";
  37
  38 extern int varobjdebug;         /* defined in varobj.c.  */
  39
  40 static void varobj_update_one (struct varobj *var,
  41                               enum print_values print_values,
  42                               int explicit);
  43
  44 static int mi_print_value_p (struct varobj *var,
  45                              enum print_values print_values);
  46
  47 /* Print variable object VAR.  The PRINT_VALUES parameter controls
  48    if the value should be printed.  The PRINT_EXPRESSION parameter
  49    controls if the expression should be printed.  */
  50 static void
  51 print_varobj (struct varobj *var, enum print_values print_values,
  52               int print_expression)
  53 {
  54   char *type;
  55   int thread_id;
  56   char *display_hint;
  57
  58   ui_out_field_string (uiout, "name", varobj_get_objname (var));
  59   if (print_expression)
  60     ui_out_field_string (uiout, "exp", varobj_get_expression (var));
  61   ui_out_field_int (uiout, "numchild", varobj_get_num_children (var));
  62
  63   if (mi_print_value_p (var, print_values))
  64     {
  65       char *val = varobj_get_value (var);
  66
  67       ui_out_field_string (uiout, "value", val);
  68       xfree (val);
  69     }
  70
  71   type = varobj_get_type (var);
  72   if (type != NULL)
  73     {
  74       ui_out_field_string (uiout, "type", type);
  75       xfree (type);
  76     }
  77
  78   thread_id = varobj_get_thread_id (var);
  79   if (thread_id > 0)
  80     ui_out_field_int (uiout, "thread-id", thread_id);
  81
  82   if (varobj_get_frozen (var))
  83     ui_out_field_int (uiout, "frozen", 1);
  84
  85   display_hint = varobj_get_display_hint (var);
  86   if (display_hint)
  87     {
  88       ui_out_field_string (uiout, "displayhint", display_hint);
  89       xfree (display_hint);
  90     }
  91
  92   if (varobj_pretty_printed_p (var))
  93     ui_out_field_int (uiout, "dynamic", 1);
  94 }
  95
  96 /* VAROBJ operations */
  97
  98 void
  99 mi_cmd_var_create (char *command, char **argv, int argc)
 100 {
 101   CORE_ADDR frameaddr = 0;
 102   struct varobj *var;
 103   char *name;
 104   char *frame;
 105   char *expr;
 106   struct cleanup *old_cleanups;
 107   enum varobj_type var_type;
 108
 109   if (argc != 3)
 110     {
 111       /* mi_error_message = xstrprintf ("mi_cmd_var_create: Usage:
 112          ...."); return MI_CMD_ERROR; */
 113       error (_("mi_cmd_var_create: Usage: NAME FRAME EXPRESSION."));
 114     }
 115
 116   name = xstrdup (argv[0]);
 117   /* Add cleanup for name. Must be free_current_contents as
 118      name can be reallocated */
 119   old_cleanups = make_cleanup (free_current_contents, &name);
 120
 121   frame = xstrdup (argv[1]);
 122   make_cleanup (xfree, frame);
 123
 124   expr = xstrdup (argv[2]);
 125   make_cleanup (xfree, expr);
 126
 127   if (strcmp (name, "-") == 0)
 128     {
 129       xfree (name);
 130       name = varobj_gen_name ();
 131     }
 132   else if (!isalpha (*name))
 133     error (_("mi_cmd_var_create: name of object must begin with a letter"));
 134
 135   if (strcmp (frame, "*") == 0)
 136     var_type = USE_CURRENT_FRAME;
 137   else if (strcmp (frame, "@") == 0)
 138     var_type = USE_SELECTED_FRAME;
 139   else
 140     {
 141       var_type = USE_SPECIFIED_FRAME;
 142       frameaddr = string_to_core_addr (frame);
 143     }
 144
 145   if (varobjdebug)
 146     fprintf_unfiltered (gdb_stdlog,
 147                     "Name=\"%s\", Frame=\"%s\" (%s), Expression=\"%s\"\n",
 148                         name, frame, hex_string (frameaddr), expr);
 149
 150   var = varobj_create (name, expr, frameaddr, var_type);
 151
 152   if (var == NULL)
 153     error (_("mi_cmd_var_create: unable to create variable object"));
 154
 155   print_varobj (var, PRINT_ALL_VALUES, 0 /* don't print expression */);
 156
 157   ui_out_field_int (uiout, "has_more", varobj_has_more (var, 0));
 158
 159   do_cleanups (old_cleanups);
 160 }
 161
 162 void
 163 mi_cmd_var_delete (char *command, char **argv, int argc)
 164 {
 165   char *name;
 166   struct varobj *var;
 167   int numdel;
 168   int children_only_p = 0;
 169   struct cleanup *old_cleanups;
 170
 171   if (argc < 1 || argc > 2)
 172     error (_("mi_cmd_var_delete: Usage: [-c] EXPRESSION."));
 173
 174   name = xstrdup (argv[0]);
 175   /* Add cleanup for name. Must be free_current_contents as
 176      name can be reallocated */
 177   old_cleanups = make_cleanup (free_current_contents, &name);
 178
 179   /* If we have one single argument it cannot be '-c' or any string
 180      starting with '-'. */
 181   if (argc == 1)
 182     {
 183       if (strcmp (name, "-c") == 0)
 184         error (_("mi_cmd_var_delete: Missing required "
 185                  "argument after '-c': variable object name"));
 186       if (*name == '-')
 187         error (_("mi_cmd_var_delete: Illegal variable object name"));
 188     }
 189
 190   /* If we have 2 arguments they must be '-c' followed by a string
 191      which would be the variable name. */
 192   if (argc == 2)
 193     {
 194       if (strcmp (name, "-c") != 0)
 195         error (_("mi_cmd_var_delete: Invalid option."));
 196       children_only_p = 1;
 197       do_cleanups (old_cleanups);
 198       name = xstrdup (argv[1]);
 199       make_cleanup (free_current_contents, &name);
 200     }
 201
 202   /* If we didn't error out, now NAME contains the name of the
 203      variable. */
 204
 205   var = varobj_get_handle (name);
 206
 207   numdel = varobj_delete (var, NULL, children_only_p);
 208
 209   ui_out_field_int (uiout, "ndeleted", numdel);
 210
 211   do_cleanups (old_cleanups);
 212 }
 213
 214 /* Parse a string argument into a format value.  */
 215
 216 static enum varobj_display_formats
 217 mi_parse_format (const char *arg)
 218 {
 219   if (arg != NULL)
 220     {
 221       int len;
 222
 223       len = strlen (arg);
 224
 225       if (strncmp (arg, "natural", len) == 0)
 226         return FORMAT_NATURAL;
 227       else if (strncmp (arg, "binary", len) == 0)
 228         return FORMAT_BINARY;
 229       else if (strncmp (arg, "decimal", len) == 0)
 230         return FORMAT_DECIMAL;
 231       else if (strncmp (arg, "hexadecimal", len) == 0)
 232         return FORMAT_HEXADECIMAL;
 233       else if (strncmp (arg, "octal", len) == 0)
 234         return FORMAT_OCTAL;
 235     }
 236
 237   error (_("Must specify the format as: \"natural\", "
 238            "\"binary\", \"decimal\", \"hexadecimal\", or \"octal\""));
 239 }
 240
 241 void
 242 mi_cmd_var_set_format (char *command, char **argv, int argc)
 243 {
 244   enum varobj_display_formats format;
 245   struct varobj *var;
 246   char *val;
 247
 248   if (argc != 2)
 249     error (_("mi_cmd_var_set_format: Usage: NAME FORMAT."));
 250
 251   /* Get varobj handle, if a valid var obj name was specified */
 252   var = varobj_get_handle (argv[0]);
 253
 254   format = mi_parse_format (argv[1]);
 255
 256   /* Set the format of VAR to given format */
 257   varobj_set_display_format (var, format);
 258
 259   /* Report the new current format */
 260   ui_out_field_string (uiout, "format", varobj_format_string[(int) format]);
 261
 262   /* Report the value in the new format */
 263   val = varobj_get_value (var);
 264   ui_out_field_string (uiout, "value", val);
 265   xfree (val);
 266 }
 267
 268 void
 269 mi_cmd_var_set_visualizer (char *command, char **argv, int argc)
 270 {
 271   struct varobj *var;
 272
 273   if (argc != 2)
 274     error ("Usage: NAME VISUALIZER_FUNCTION.");
 275
 276   var = varobj_get_handle (argv[0]);
 277
 278   if (var == NULL)
 279     error ("Variable object not found");
 280
 281   varobj_set_visualizer (var, argv[1]);
 282 }
 283
 284 void
 285 mi_cmd_var_set_frozen (char *command, char **argv, int argc)
 286 {
 287   struct varobj *var;
 288   int frozen;
 289
 290   if (argc != 2)
 291     error (_("-var-set-format: Usage: NAME FROZEN_FLAG."));
 292
 293   var = varobj_get_handle (argv[0]);
 294
 295   if (strcmp (argv[1], "0") == 0)
 296     frozen = 0;
 297   else if (strcmp (argv[1], "1") == 0)
 298     frozen = 1;
 299   else
 300     error (_("Invalid flag value"));
 301
 302   varobj_set_frozen (var, frozen);
 303
 304   /* We don't automatically return the new value, or what varobjs got new
 305      values during unfreezing.  If this information is required, client
 306      should call -var-update explicitly.  */
 307 }
 308
 309
 310 void
 311 mi_cmd_var_show_format (char *command, char **argv, int argc)
 312 {
 313   enum varobj_display_formats format;
 314   struct varobj *var;
 315
 316   if (argc != 1)
 317     error (_("mi_cmd_var_show_format: Usage: NAME."));
 318
 319   /* Get varobj handle, if a valid var obj name was specified */
 320   var = varobj_get_handle (argv[0]);
 321
 322   format = varobj_get_display_format (var);
 323
 324   /* Report the current format */
 325   ui_out_field_string (uiout, "format", varobj_format_string[(int) format]);
 326 }
 327
 328 void
 329 mi_cmd_var_info_num_children (char *command, char **argv, int argc)
 330 {
 331   struct varobj *var;
 332
 333   if (argc != 1)
 334     error (_("mi_cmd_var_info_num_children: Usage: NAME."));
 335
 336   /* Get varobj handle, if a valid var obj name was specified */
 337   var = varobj_get_handle (argv[0]);
 338
 339   ui_out_field_int (uiout, "numchild", varobj_get_num_children (var));
 340 }
 341
 342 /* Parse a string argument into a print_values value.  */
 343
 344 static enum print_values
 345 mi_parse_values_option (const char *arg)
 346 {
 347   if (strcmp (arg, "0") == 0
 348       || strcmp (arg, mi_no_values) == 0)
 349     return PRINT_NO_VALUES;
 350   else if (strcmp (arg, "1") == 0
 351            || strcmp (arg, mi_all_values) == 0)
 352     return PRINT_ALL_VALUES;
 353   else if (strcmp (arg, "2") == 0
 354            || strcmp (arg, mi_simple_values) == 0)
 355     return PRINT_SIMPLE_VALUES;
 356   else
 357     error (_("Unknown value for PRINT_VALUES\n\
 358 Must be: 0 or \"%s\", 1 or \"%s\", 2 or \"%s\""),
 359            mi_no_values, mi_simple_values, mi_all_values);
 360 }
 361
 362 /* Return 1 if given the argument PRINT_VALUES we should display
 363    the varobj VAR.  */
 364
 365 static int
 366 mi_print_value_p (struct varobj *var, enum print_values print_values)
 367 {
 368   struct type *type;
 369
 370   if (print_values == PRINT_NO_VALUES)
 371     return 0;
 372
 373   if (print_values == PRINT_ALL_VALUES)
 374     return 1;
 375
 376   if (varobj_pretty_printed_p (var))
 377     return 1;
 378
 379   type = varobj_get_gdb_type (var);
 380   if (type == NULL)
 381     return 1;
 382   else
 383     {
 384       type = check_typedef (type);
 385
 386       /* For PRINT_SIMPLE_VALUES, only print the value if it has a type
 387          and that type is not a compound type.  */
 388       return (TYPE_CODE (type) != TYPE_CODE_ARRAY
 389               && TYPE_CODE (type) != TYPE_CODE_STRUCT
 390               && TYPE_CODE (type) != TYPE_CODE_UNION);
 391     }
 392 }
 393
 394 void
 395 mi_cmd_var_list_children (char *command, char **argv, int argc)
 396 {
 397   struct varobj *var;
 398   VEC(varobj_p) *children;
 399   struct varobj *child;
 400   enum print_values print_values;
 401   int ix;
 402   int from, to;
 403   char *display_hint;
 404
 405   if (argc < 1 || argc > 4)
 406     error (_("mi_cmd_var_list_children: Usage: "
 407              "[PRINT_VALUES] NAME [FROM TO]"));
 408
 409   /* Get varobj handle, if a valid var obj name was specified */
 410   if (argc == 1 || argc == 3)
 411     var = varobj_get_handle (argv[0]);
 412   else
 413     var = varobj_get_handle (argv[1]);
 414
 415   if (argc > 2)
 416     {
 417       from = atoi (argv[argc - 2]);
 418       to = atoi (argv[argc - 1]);
 419     }
 420   else
 421     {
 422       from = -1;
 423       to = -1;
 424     }
 425
 426   children = varobj_list_children (var, &from, &to);
 427   ui_out_field_int (uiout, "numchild", to - from);
 428   if (argc == 2 || argc == 4)
 429     print_values = mi_parse_values_option (argv[0]);
 430   else
 431     print_values = PRINT_NO_VALUES;
 432
 433   display_hint = varobj_get_display_hint (var);
 434   if (display_hint)
 435     {
 436       ui_out_field_string (uiout, "displayhint", display_hint);
 437       xfree (display_hint);
 438     }
 439
 440   if (from < to)
 441     {
 442       struct cleanup *cleanup_children;
 443
 444       if (mi_version (uiout) == 1)
 445         cleanup_children
 446           = make_cleanup_ui_out_tuple_begin_end (uiout, "children");
 447       else
 448         cleanup_children
 449           = make_cleanup_ui_out_list_begin_end (uiout, "children");
 450       for (ix = from;
 451            ix < to && VEC_iterate (varobj_p, children, ix, child);
 452            ++ix)
 453         {
 454           struct cleanup *cleanup_child;
 455
 456           cleanup_child = make_cleanup_ui_out_tuple_begin_end (uiout, "child");
 457           print_varobj (child, print_values, 1 /* print expression */);
 458           do_cleanups (cleanup_child);
 459         }
 460       do_cleanups (cleanup_children);
 461     }
 462
 463   ui_out_field_int (uiout, "has_more", varobj_has_more (var, to));
 464 }
 465
 466 void
 467 mi_cmd_var_info_type (char *command, char **argv, int argc)
 468 {
 469   struct varobj *var;
 470
 471   if (argc != 1)
 472     error (_("mi_cmd_var_info_type: Usage: NAME."));
 473
 474   /* Get varobj handle, if a valid var obj name was specified */
 475   var = varobj_get_handle (argv[0]);
 476
 477   ui_out_field_string (uiout, "type", varobj_get_type (var));
 478 }
 479
 480 void
 481 mi_cmd_var_info_path_expression (char *command, char **argv, int argc)
 482 {
 483   struct varobj *var;
 484   char *path_expr;
 485
 486   if (argc != 1)
 487     error (_("Usage: NAME."));
 488
 489   /* Get varobj handle, if a valid var obj name was specified.  */
 490   var = varobj_get_handle (argv[0]);
 491
 492   path_expr = varobj_get_path_expr (var);
 493
 494   ui_out_field_string (uiout, "path_expr", path_expr);
 495 }
 496
 497 void
 498 mi_cmd_var_info_expression (char *command, char **argv, int argc)
 499 {
 500   enum varobj_languages lang;
 501   struct varobj *var;
 502
 503   if (argc != 1)
 504     error (_("mi_cmd_var_info_expression: Usage: NAME."));
 505
 506   /* Get varobj handle, if a valid var obj name was specified */
 507   var = varobj_get_handle (argv[0]);
 508
 509   lang = varobj_get_language (var);
 510
 511   ui_out_field_string (uiout, "lang", varobj_language_string[(int) lang]);
 512   ui_out_field_string (uiout, "exp", varobj_get_expression (var));
 513 }
 514
 515 void
 516 mi_cmd_var_show_attributes (char *command, char **argv, int argc)
 517 {
 518   int attr;
 519   char *attstr;
 520   struct varobj *var;
 521
 522   if (argc != 1)
 523     error (_("mi_cmd_var_show_attributes: Usage: NAME."));
 524
 525   /* Get varobj handle, if a valid var obj name was specified */
 526   var = varobj_get_handle (argv[0]);
 527
 528   attr = varobj_get_attributes (var);
 529   /* FIXME: define masks for attributes */
 530   if (attr & 0x00000001)
 531     attstr = "editable";
 532   else
 533     attstr = "noneditable";
 534
 535   ui_out_field_string (uiout, "attr", attstr);
 536 }
 537
 538 void
 539 mi_cmd_var_evaluate_expression (char *command, char **argv, int argc)
 540 {
 541   struct varobj *var;
 542
 543   enum varobj_display_formats format;
 544   int formatFound;
 545   int optind;
 546   char *optarg;
 547
 548   enum opt
 549     {
 550       OP_FORMAT
 551     };
 552   static struct mi_opt opts[] =
 553   {
 554     {"f", OP_FORMAT, 1},
 555     { 0, 0, 0 }
 556   };
 557
 558   /* Parse arguments */
 559   format = FORMAT_NATURAL;
 560   formatFound = 0;
 561   optind = 0;
 562   while (1)
 563     {
 564       int opt = mi_getopt ("-var-evaluate-expression", argc, argv,
 565                            opts, &optind, &optarg);
 566
 567       if (opt < 0)
 568         break;
 569       switch ((enum opt) opt)
 570       {
 571         case OP_FORMAT:
 572           if (formatFound)
 573             error (_("Cannot specify format more than once"));
 574
 575           format = mi_parse_format (optarg);
 576           formatFound = 1;
 577           break;
 578       }
 579     }
 580
 581   if (optind >= argc)
 582     error (_("Usage: [-f FORMAT] NAME"));
 583
 584   if (optind < argc - 1)
 585     error (_("Garbage at end of command"));
 586
 587      /* Get varobj handle, if a valid var obj name was specified */
 588   var = varobj_get_handle (argv[optind]);
 589
 590   if (formatFound)
 591     {
 592       char *val = varobj_get_formatted_value (var, format);
 593
 594       ui_out_field_string (uiout, "value", val);
 595       xfree (val);
 596     }
 597   else
 598     {
 599       char *val = varobj_get_value (var);
 600
 601       ui_out_field_string (uiout, "value", val);
 602       xfree (val);
 603     }
 604 }
 605
 606 void
 607 mi_cmd_var_assign (char *command, char **argv, int argc)
 608 {
 609   struct varobj *var;
 610   char *expression, *val;
 611
 612   if (argc != 2)
 613     error (_("mi_cmd_var_assign: Usage: NAME EXPRESSION."));
 614
 615   /* Get varobj handle, if a valid var obj name was specified */
 616   var = varobj_get_handle (argv[0]);
 617
 618   if (!varobj_editable_p (var))
 619     error (_("mi_cmd_var_assign: Variable object is not editable"));
 620
 621   expression = xstrdup (argv[1]);
 622
 623   if (!varobj_set_value (var, expression))
 624     error (_("mi_cmd_var_assign: Could not assign "
 625              "expression to variable object"));
 626
 627   val = varobj_get_value (var);
 628   ui_out_field_string (uiout, "value", val);
 629   xfree (val);
 630 }
 631
 632 /* Type used for parameters passing to mi_cmd_var_update_iter.  */
 633
 634 struct mi_cmd_var_update
 635   {
 636     int only_floating;
 637     enum print_values print_values;
 638   };
 639
 640 /* Helper for mi_cmd_var_update - update each VAR.  */
 641
 642 static void
 643 mi_cmd_var_update_iter (struct varobj *var, void *data_pointer)
 644 {
 645   struct mi_cmd_var_update *data = data_pointer;
 646   int thread_id, thread_stopped;
 647
 648   thread_id = varobj_get_thread_id (var);
 649
 650   if (thread_id == -1 && is_stopped (inferior_ptid))
 651     thread_stopped = 1;
 652   else
 653     {
 654       struct thread_info *tp = find_thread_id (thread_id);
 655
 656       if (tp)
 657         thread_stopped = is_stopped (tp->ptid);
 658       else
 659         thread_stopped = 1;
 660     }
 661
 662   if (thread_stopped)
 663     if (!data->only_floating || varobj_floating_p (var))
 664       varobj_update_one (var, data->print_values, 0 /* implicit */);
 665 }
 666
 667 void
 668 mi_cmd_var_update (char *command, char **argv, int argc)
 669 {
 670   struct cleanup *cleanup;
 671   char *name;
 672   enum print_values print_values;
 673
 674   if (argc != 1 && argc != 2)
 675     error (_("mi_cmd_var_update: Usage: [PRINT_VALUES] NAME."));
 676
 677   if (argc == 1)
 678     name = argv[0];
 679   else
 680     name = (argv[1]);
 681
 682   if (argc == 2)
 683     print_values = mi_parse_values_option (argv[0]);
 684   else
 685     print_values = PRINT_NO_VALUES;
 686
 687   if (mi_version (uiout) <= 1)
 688     cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, "changelist");
 689   else
 690     cleanup = make_cleanup_ui_out_list_begin_end (uiout, "changelist");
 691
 692   /* Check if the parameter is a "*" which means that we want
 693      to update all variables */
 694
 695   if ((*name == '*' || *name == '@') && (*(name + 1) == '\0'))
 696     {
 697       struct mi_cmd_var_update data;
 698
 699       data.only_floating = *name == '@';
 700       data.print_values = print_values;
 701
 702       /* varobj_update_one automatically updates all the children of VAROBJ.
 703          Therefore update each VAROBJ only once by iterating only the root
 704          VAROBJs.  */
 705
 706       all_root_varobjs (mi_cmd_var_update_iter, &data);
 707     }
 708   else
 709     {
 710       /* Get varobj handle, if a valid var obj name was specified */
 711       struct varobj *var = varobj_get_handle (name);
 712
 713       varobj_update_one (var, print_values, 1 /* explicit */);
 714     }
 715
 716   do_cleanups (cleanup);
 717 }
 718
 719 /* Helper for mi_cmd_var_update().  */
 720
 721 static void
 722 varobj_update_one (struct varobj *var, enum print_values print_values,
 723                    int explicit)
 724 {
 725   struct cleanup *cleanup = NULL;
 726   VEC (varobj_update_result) *changes;
 727   varobj_update_result *r;
 728   int i;
 729
 730   changes = varobj_update (&var, explicit);
 731
 732   for (i = 0; VEC_iterate (varobj_update_result, changes, i, r); ++i)
 733     {
 734       char *display_hint;
 735       int from, to;
 736
 737       if (mi_version (uiout) > 1)
 738         cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
 739       ui_out_field_string (uiout, "name", varobj_get_objname (r->varobj));
 740
 741       switch (r->status)
 742         {
 743         case VAROBJ_IN_SCOPE:
 744           if (mi_print_value_p (r->varobj, print_values))
 745             {
 746               char *val = varobj_get_value (r->varobj);
 747
 748               ui_out_field_string (uiout, "value", val);
 749               xfree (val);
 750             }
 751           ui_out_field_string (uiout, "in_scope", "true");
 752           break;
 753         case VAROBJ_NOT_IN_SCOPE:
 754           ui_out_field_string (uiout, "in_scope", "false");
 755           break;
 756         case VAROBJ_INVALID:
 757           ui_out_field_string (uiout, "in_scope", "invalid");
 758           break;
 759         }
 760
 761       if (r->status != VAROBJ_INVALID)
 762         {
 763           if (r->type_changed)
 764             ui_out_field_string (uiout, "type_changed", "true");
 765           else
 766             ui_out_field_string (uiout, "type_changed", "false");
 767         }
 768
 769       if (r->type_changed)
 770         ui_out_field_string (uiout, "new_type", varobj_get_type (r->varobj));
 771
 772       if (r->type_changed || r->children_changed)
 773         ui_out_field_int (uiout, "new_num_children",
 774                           varobj_get_num_children (r->varobj));
 775
 776       display_hint = varobj_get_display_hint (var);
 777       if (display_hint)
 778         {
 779           ui_out_field_string (uiout, "displayhint", display_hint);
 780           xfree (display_hint);
 781         }
 782
 783       if (varobj_pretty_printed_p (var))
 784         ui_out_field_int (uiout, "dynamic", 1);
 785
 786       varobj_get_child_range (r->varobj, &from, &to);
 787       ui_out_field_int (uiout, "has_more",
 788                         varobj_has_more (r->varobj, to));
 789
 790       if (r->new)
 791         {
 792           int j;
 793           varobj_p child;
 794           struct cleanup *cleanup;
 795
 796           cleanup = make_cleanup_ui_out_list_begin_end (uiout, "new_children");
 797           for (j = 0; VEC_iterate (varobj_p, r->new, j, child); ++j)
 798             {
 799               struct cleanup *cleanup_child;
 800
 801               cleanup_child
 802                 = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
 803               print_varobj (child, print_values, 1 /* print_expression */);
 804               do_cleanups (cleanup_child);
 805             }
 806
 807           do_cleanups (cleanup);
 808           VEC_free (varobj_p, r->new);
 809           r->new = NULL;        /* Paranoia.  */
 810         }
 811
 812       if (mi_version (uiout) > 1)
 813         do_cleanups (cleanup);
 814     }
 815   VEC_free (varobj_update_result, changes);
 816 }
 817
 818 void
 819 mi_cmd_enable_pretty_printing (char *command, char **argv, int argc)
 820 {
 821   if (argc != 0)
 822     error (_("mi_cmd_enable_pretty_printing: no arguments allowed"));
 823   varobj_enable_pretty_printing ();
 824 }
 825
 826 void
 827 mi_cmd_var_set_update_range (char *command, char **argv, int argc)
 828 {
 829   struct varobj *var;
 830   int from, to;
 831
 832   if (argc != 3)
 833     error (_("mi_cmd_var_set_update_range: Usage: VAROBJ FROM TO"));
 834
 835   var = varobj_get_handle (argv[0]);
 836   from = atoi (argv[1]);
 837   to = atoi (argv[2]);
 838
 839   varobj_set_child_range (var, from, to);
 840 }