/* MI Command Set - varobj commands.
- Copyright 2000, 2002, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2002, 2004, 2005, 2007, 2008
+ Free Software Foundation, Inc.
Contributed by Cygnus Solutions (a Red Hat company).
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "mi-cmds.h"
#include <ctype.h>
#include "gdb_string.h"
-extern int varobjdebug; /* defined in varobj.c */
+const char mi_no_values[] = "--no-values";
+const char mi_simple_values[] = "--simple-values";
+const char mi_all_values[] = "--all-values";
-static int varobj_update_one (struct varobj *var);
+extern int varobjdebug; /* defined in varobj.c. */
+
+static void varobj_update_one (struct varobj *var,
+ enum print_values print_values,
+ int explicit);
+
+static int mi_print_value_p (struct type *type, enum print_values print_values);
+
+/* Print variable object VAR. The PRINT_VALUES parameter controls
+ if the value should be printed. The PRINT_EXPRESSION parameter
+ controls if the expression should be printed. */
+static void
+print_varobj (struct varobj *var, enum print_values print_values,
+ int print_expression)
+{
+ struct type *gdb_type;
+ char *type;
+
+ ui_out_field_string (uiout, "name", varobj_get_objname (var));
+ if (print_expression)
+ ui_out_field_string (uiout, "exp", varobj_get_expression (var));
+ ui_out_field_int (uiout, "numchild", varobj_get_num_children (var));
+
+ if (mi_print_value_p (varobj_get_gdb_type (var), print_values))
+ ui_out_field_string (uiout, "value", varobj_get_value (var));
+
+ type = varobj_get_type (var);
+ if (type != NULL)
+ {
+ ui_out_field_string (uiout, "type", type);
+ xfree (type);
+ }
+
+ if (varobj_get_frozen (var))
+ ui_out_field_int (uiout, "frozen", 1);
+}
/* VAROBJ operations */
char *name;
char *frame;
char *expr;
- char *type;
struct cleanup *old_cleanups;
enum varobj_type var_type;
old_cleanups = make_cleanup (free_current_contents, &name);
frame = xstrdup (argv[1]);
- old_cleanups = make_cleanup (xfree, frame);
+ make_cleanup (xfree, frame);
expr = xstrdup (argv[2]);
+ make_cleanup (xfree, expr);
if (strcmp (name, "-") == 0)
{
if (var == NULL)
error (_("mi_cmd_var_create: unable to create variable object"));
- ui_out_field_string (uiout, "name", name);
- ui_out_field_int (uiout, "numchild", varobj_get_num_children (var));
- type = varobj_get_type (var);
- if (type == NULL)
- ui_out_field_string (uiout, "type", "");
- else
- {
- ui_out_field_string (uiout, "type", type);
- xfree (type);
- }
+ print_varobj (var, PRINT_ALL_VALUES, 0 /* don't print expression */);
do_cleanups (old_cleanups);
return MI_CMD_DONE;
mi_cmd_var_delete (char *command, char **argv, int argc)
{
char *name;
- char *expr;
struct varobj *var;
int numdel;
int children_only_p = 0;
which would be the variable name. */
if (argc == 2)
{
- expr = xstrdup (argv[1]);
if (strcmp (name, "-c") != 0)
error (_("mi_cmd_var_delete: Invalid option."));
children_only_p = 1;
- xfree (name);
- name = xstrdup (expr);
- xfree (expr);
+ do_cleanups (old_cleanups);
+ name = xstrdup (argv[1]);
+ make_cleanup (free_current_contents, &name);
}
/* If we didn't error out, now NAME contains the name of the
if (var == NULL)
error (_("mi_cmd_var_set_format: Variable object not found"));
- formspec = xstrdup (argv[1]);
+ formspec = argv[1];
if (formspec == NULL)
error (_("mi_cmd_var_set_format: Must specify the format as: \"natural\", \"binary\", \"decimal\", \"hexadecimal\", or \"octal\""));
return MI_CMD_DONE;
}
+enum mi_cmd_result
+mi_cmd_var_set_frozen (char *command, char **argv, int argc)
+{
+ struct varobj *var;
+ int frozen;
+
+ if (argc != 2)
+ error (_("-var-set-format: Usage: NAME FROZEN_FLAG."));
+
+ var = varobj_get_handle (argv[0]);
+ if (var == NULL)
+ error (_("Variable object not found"));
+
+ if (strcmp (argv[1], "0") == 0)
+ frozen = 0;
+ else if (strcmp (argv[1], "1") == 0)
+ frozen = 1;
+ else
+ error (_("Invalid flag value"));
+
+ varobj_set_frozen (var, frozen);
+
+ /* We don't automatically return the new value, or what varobjs got new
+ values during unfreezing. If this information is required, client
+ should call -var-update explicitly. */
+ return MI_CMD_DONE;
+}
+
+
enum mi_cmd_result
mi_cmd_var_show_format (char *command, char **argv, int argc)
{
return MI_CMD_DONE;
}
+/* Parse a string argument into a print_values value. */
+
+static enum print_values
+mi_parse_values_option (const char *arg)
+{
+ if (strcmp (arg, "0") == 0
+ || strcmp (arg, mi_no_values) == 0)
+ return PRINT_NO_VALUES;
+ else if (strcmp (arg, "1") == 0
+ || strcmp (arg, mi_all_values) == 0)
+ return PRINT_ALL_VALUES;
+ else if (strcmp (arg, "2") == 0
+ || strcmp (arg, mi_simple_values) == 0)
+ return PRINT_SIMPLE_VALUES;
+ else
+ error (_("Unknown value for PRINT_VALUES\n\
+Must be: 0 or \"%s\", 1 or \"%s\", 2 or \"%s\""),
+ mi_no_values, mi_simple_values, mi_all_values);
+}
+
+/* Return 1 if given the argument PRINT_VALUES we should display
+ a value of type TYPE. */
+
+static int
+mi_print_value_p (struct type *type, enum print_values print_values)
+{
+
+ if (print_values == PRINT_NO_VALUES)
+ return 0;
+
+ if (print_values == PRINT_ALL_VALUES)
+ return 1;
+
+ if (type == NULL)
+ return 1;
+ else
+ {
+ type = check_typedef (type);
+
+ /* For PRINT_SIMPLE_VALUES, only print the value if it has a type
+ and that type is not a compound type. */
+ return (TYPE_CODE (type) != TYPE_CODE_ARRAY
+ && TYPE_CODE (type) != TYPE_CODE_STRUCT
+ && TYPE_CODE (type) != TYPE_CODE_UNION);
+ }
+}
+
enum mi_cmd_result
mi_cmd_var_list_children (char *command, char **argv, int argc)
{
struct varobj **cc;
struct cleanup *cleanup_children;
int numchild;
- char *type;
enum print_values print_values;
if (argc != 1 && argc != 2)
error (_("mi_cmd_var_list_children: Usage: [PRINT_VALUES] NAME"));
/* Get varobj handle, if a valid var obj name was specified */
- if (argc == 1) var = varobj_get_handle (argv[0]);
- else var = varobj_get_handle (argv[1]);
+ if (argc == 1)
+ var = varobj_get_handle (argv[0]);
+ else
+ var = varobj_get_handle (argv[1]);
if (var == NULL)
error (_("Variable object not found"));
numchild = varobj_list_children (var, &childlist);
ui_out_field_int (uiout, "numchild", numchild);
if (argc == 2)
- if (strcmp (argv[0], "0") == 0
- || strcmp (argv[0], "--no-values") == 0)
- print_values = PRINT_NO_VALUES;
- else if (strcmp (argv[0], "1") == 0
- || strcmp (argv[0], "--all-values") == 0)
- print_values = PRINT_ALL_VALUES;
- else
- error (_("Unknown value for PRINT_VALUES: must be: 0 or \"--no-values\", 1 or \"--all-values\""));
- else print_values = PRINT_NO_VALUES;
+ print_values = mi_parse_values_option (argv[0]);
+ else
+ print_values = PRINT_NO_VALUES;
if (numchild <= 0)
- return MI_CMD_DONE;
+ {
+ xfree (childlist);
+ return MI_CMD_DONE;
+ }
if (mi_version (uiout) == 1)
cleanup_children = make_cleanup_ui_out_tuple_begin_end (uiout, "children");
{
struct cleanup *cleanup_child;
cleanup_child = make_cleanup_ui_out_tuple_begin_end (uiout, "child");
- ui_out_field_string (uiout, "name", varobj_get_objname (*cc));
- ui_out_field_string (uiout, "exp", varobj_get_expression (*cc));
- ui_out_field_int (uiout, "numchild", varobj_get_num_children (*cc));
- if (print_values)
- ui_out_field_string (uiout, "value", varobj_get_value (*cc));
- type = varobj_get_type (*cc);
- /* C++ pseudo-variables (public, private, protected) do not have a type */
- if (type)
- ui_out_field_string (uiout, "type", varobj_get_type (*cc));
- do_cleanups (cleanup_child);
+ print_varobj (*cc, print_values, 1 /* print expression */);
cc++;
+ do_cleanups (cleanup_child);
}
do_cleanups (cleanup_children);
xfree (childlist);
return MI_CMD_DONE;
}
+enum mi_cmd_result
+mi_cmd_var_info_path_expression (char *command, char **argv, int argc)
+{
+ struct varobj *var;
+ char *path_expr;
+
+ if (argc != 1)
+ error (_("Usage: NAME."));
+
+ /* Get varobj handle, if a valid var obj name was specified. */
+ var = varobj_get_handle (argv[0]);
+ if (var == NULL)
+ error (_("Variable object not found"));
+
+ path_expr = varobj_get_path_expr (var);
+
+ ui_out_field_string (uiout, "path_expr", path_expr);
+
+ return MI_CMD_DONE;
+}
+
enum mi_cmd_result
mi_cmd_var_info_expression (char *command, char **argv, int argc)
{
if (var == NULL)
error (_("mi_cmd_var_assign: Variable object not found"));
- /* FIXME: define masks for attributes */
- if (!(varobj_get_attributes (var) & 0x00000001))
+ if (!varobj_editable_p (var))
error (_("mi_cmd_var_assign: Variable object is not editable"));
expression = xstrdup (argv[1]);
if (!varobj_set_value (var, expression))
- error (_("mi_cmd_var_assign: Could not assign expression to varible object"));
+ error (_("mi_cmd_var_assign: Could not assign expression to variable object"));
ui_out_field_string (uiout, "value", varobj_get_value (var));
return MI_CMD_DONE;
struct cleanup *cleanup;
char *name;
int nv;
+ enum print_values print_values;
- if (argc != 1)
- error (_("mi_cmd_var_update: Usage: NAME."));
+ if (argc != 1 && argc != 2)
+ error (_("mi_cmd_var_update: Usage: [PRINT_VALUES] NAME."));
- name = argv[0];
+ if (argc == 1)
+ name = argv[0];
+ else
+ name = (argv[1]);
+
+ if (argc == 2)
+ print_values = mi_parse_values_option (argv[0]);
+ else
+ print_values = PRINT_NO_VALUES;
/* Check if the parameter is a "*" which means that we want
to update all variables */
if ((*name == '*') && (*(name + 1) == '\0'))
{
nv = varobj_list (&rootlist);
+ cleanup = make_cleanup (xfree, rootlist);
if (mi_version (uiout) <= 1)
- cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, "changelist");
+ make_cleanup_ui_out_tuple_begin_end (uiout, "changelist");
else
- cleanup = make_cleanup_ui_out_list_begin_end (uiout, "changelist");
+ make_cleanup_ui_out_list_begin_end (uiout, "changelist");
if (nv <= 0)
{
do_cleanups (cleanup);
cr = rootlist;
while (*cr != NULL)
{
- varobj_update_one (*cr);
+ varobj_update_one (*cr, print_values, 0 /* implicit */);
cr++;
}
- xfree (rootlist);
do_cleanups (cleanup);
}
else
cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, "changelist");
else
cleanup = make_cleanup_ui_out_list_begin_end (uiout, "changelist");
- varobj_update_one (var);
+ varobj_update_one (var, print_values, 1 /* explicit */);
do_cleanups (cleanup);
}
return MI_CMD_DONE;
}
-/* Helper for mi_cmd_var_update() Returns 0 if the update for
- the variable fails (usually because the variable is out of
- scope), and 1 if it succeeds. */
+/* Helper for mi_cmd_var_update(). */
-static int
-varobj_update_one (struct varobj *var)
+static void
+varobj_update_one (struct varobj *var, enum print_values print_values,
+ int explicit)
{
struct varobj **changelist;
struct varobj **cc;
struct cleanup *cleanup = NULL;
int nc;
- nc = varobj_update (&var, &changelist);
+ nc = varobj_update (&var, &changelist, explicit);
- /* nc == 0 means that nothing has changed.
- nc == -1 means that an error occured in updating the variable.
- nc == -2 means the variable has changed type. */
+ /* nc >= 0 represents the number of changes reported into changelist.
+ nc < 0 means that an error occured or the the variable has
+ changed type (TYPE_CHANGED). */
if (nc == 0)
- return 1;
- else if (nc == -1)
+ return;
+ else if (nc < 0)
{
if (mi_version (uiout) > 1)
cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
ui_out_field_string (uiout, "name", varobj_get_objname(var));
- ui_out_field_string (uiout, "in_scope", "false");
- if (mi_version (uiout) > 1)
- do_cleanups (cleanup);
- return -1;
- }
- else if (nc == -2)
- {
- if (mi_version (uiout) > 1)
- cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
- ui_out_field_string (uiout, "name", varobj_get_objname (var));
- ui_out_field_string (uiout, "in_scope", "true");
- ui_out_field_string (uiout, "new_type", varobj_get_type(var));
- ui_out_field_int (uiout, "new_num_children",
- varobj_get_num_children(var));
+
+ switch (nc)
+ {
+ case NOT_IN_SCOPE:
+ ui_out_field_string (uiout, "in_scope", "false");
+ break;
+ case INVALID:
+ ui_out_field_string (uiout, "in_scope", "invalid");
+ break;
+ case TYPE_CHANGED:
+ ui_out_field_string (uiout, "in_scope", "true");
+ ui_out_field_string (uiout, "new_type", varobj_get_type(var));
+ ui_out_field_int (uiout, "new_num_children",
+ varobj_get_num_children(var));
+ break;
+ }
if (mi_version (uiout) > 1)
do_cleanups (cleanup);
}
else
{
-
cc = changelist;
while (*cc != NULL)
{
if (mi_version (uiout) > 1)
cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
ui_out_field_string (uiout, "name", varobj_get_objname (*cc));
+ if (mi_print_value_p (varobj_get_gdb_type (*cc), print_values))
+ ui_out_field_string (uiout, "value", varobj_get_value (*cc));
ui_out_field_string (uiout, "in_scope", "true");
ui_out_field_string (uiout, "type_changed", "false");
if (mi_version (uiout) > 1)
cc++;
}
xfree (changelist);
- return 1;
}
- return 1;
}