/* Implementation of the GDB variable objects API.
- Copyright (C) 1999-2014 Free Software Foundation, Inc.
+ Copyright (C) 1999-2015 Free Software Foundation, Inc.
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
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
-#include "exceptions.h"
#include "value.h"
#include "expression.h"
#include "frame.h"
#include "gdbcmd.h"
#include "block.h"
#include "valprint.h"
-
-#include "gdb_assert.h"
-#include <string.h>
#include "gdb_regex.h"
#include "varobj.h"
#include "vec.h"
#include "gdbthread.h"
#include "inferior.h"
+#include "varobj-iter.h"
#if HAVE_PYTHON
#include "python/python.h"
/* The iterator returned by the printer's 'children' method, or NULL
if not available. */
- PyObject *child_iter;
+ struct varobj_iter *child_iter;
/* We request one extra item from the iterator, so that we can
report to the caller whether there are more items than we have
already reported. However, we don't want to install this value
when we read it, because that will mess up future updates. So,
we stash it here instead. */
- PyObject *saved_item;
+ varobj_item *saved_item;
};
struct cpstack
static struct varobj *create_child (struct varobj *, int, char *);
static struct varobj *
-create_child_with_value (struct varobj *parent, int index, char *name,
- struct value *value);
+create_child_with_value (struct varobj *parent, int index,
+ struct varobj_item *item);
/* Utility routines */
/* Language-specific routines. */
-static int number_of_children (struct varobj *);
+static int number_of_children (const struct varobj *);
-static char *name_of_variable (struct varobj *);
+static char *name_of_variable (const struct varobj *);
static char *name_of_child (struct varobj *, int);
static struct value *value_of_root (struct varobj **var_handle, int *);
-static struct value *value_of_child (struct varobj *parent, int index);
+static struct value *value_of_child (const struct varobj *parent, int index);
static char *my_value_of_variable (struct varobj *var,
enum varobj_display_formats format);
-static int is_root_p (struct varobj *var);
-
-#if HAVE_PYTHON
+static int is_root_p (const struct varobj *var);
static struct varobj *varobj_add_child (struct varobj *var,
- char *name,
- struct value *value);
-
-#endif /* HAVE_PYTHON */
+ struct varobj_item *item);
/* Private data */
/* API Implementation */
static int
-is_root_p (struct varobj *var)
+is_root_p (const struct varobj *var)
{
return (var->root->rootvar == var);
}
#ifdef HAVE_PYTHON
/* Helper function to install a Python environment suitable for
use during operations on VAR. */
-static struct cleanup *
-varobj_ensure_python_env (struct varobj *var)
+struct cleanup *
+varobj_ensure_python_env (const struct varobj *var)
{
return ensure_python_env (var->root->exp->gdbarch,
var->root->exp->language_defn);
{
struct frame_info *fi;
struct frame_id old_id = null_frame_id;
- struct block *block;
+ const struct block *block;
const char *p;
struct value *value = NULL;
- volatile struct gdb_exception except;
CORE_ADDR pc;
/* Parse and evaluate the expression, filling in as much of the
innermost_block = NULL;
/* Wrap the call to parse expression, so we can
return a sensible error. */
- TRY_CATCH (except, RETURN_MASK_ERROR)
+ TRY
{
var->root->exp = parse_exp_1 (&p, pc, block, 0);
}
- if (except.reason < 0)
+ CATCH (except, RETURN_MASK_ERROR)
{
do_cleanups (old_chain);
return NULL;
}
+ END_CATCH
/* Don't allow variables to be created for types. */
if (var->root->exp->elts[0].opcode == OP_TYPE
/* We definitely need to catch errors here.
If evaluate_expression succeeds we got the value we wanted.
But if it fails, we still go on with a call to evaluate_type(). */
- TRY_CATCH (except, RETURN_MASK_ERROR)
+ TRY
{
value = evaluate_expression (var->root->exp);
}
-
- if (except.reason < 0)
+ CATCH (except, RETURN_MASK_ERROR)
{
/* Error getting the value. Try to at least get the
right type. */
var->type = value_type (type_only_value);
}
- else
- {
- int real_type_found = 0;
+ END_CATCH
+
+ if (value != NULL)
+ {
+ int real_type_found = 0;
- var->type = value_actual_type (value, 0, &real_type_found);
- if (real_type_found)
- value = value_cast (var->type, value);
- }
+ var->type = value_actual_type (value, 0, &real_type_found);
+ if (real_type_found)
+ value = value_cast (var->type, value);
+ }
/* Set language info */
var->root->lang_ops = var->root->exp->language_defn->la_varobj_ops;
/* Given the handle, return the name of the object. */
char *
-varobj_get_objname (struct varobj *var)
+varobj_get_objname (const struct varobj *var)
{
return var->obj_name;
}
-/* Given the handle, return the expression represented by the object. */
+/* Given the handle, return the expression represented by the object. The
+ result must be freed by the caller. */
char *
-varobj_get_expression (struct varobj *var)
+varobj_get_expression (const struct varobj *var)
{
return name_of_variable (var);
}
/* Deletes a varobj and all its children if only_children == 0,
- otherwise deletes only the children; returns a malloc'ed list of
- all the (malloc'ed) names of the variables that have been deleted
- (NULL terminated). */
+ otherwise deletes only the children. If DELLIST is non-NULL, it is
+ assigned a malloc'ed list of all the (malloc'ed) names of the variables
+ that have been deleted (NULL terminated). Returns the number of deleted
+ variables. */
int
varobj_delete (struct varobj *var, char ***dellist, int only_children)
}
enum varobj_display_formats
-varobj_get_display_format (struct varobj *var)
+varobj_get_display_format (const struct varobj *var)
{
return var->format;
}
char *
-varobj_get_display_hint (struct varobj *var)
+varobj_get_display_hint (const struct varobj *var)
{
char *result = NULL;
/* Return true if the varobj has items after TO, false otherwise. */
int
-varobj_has_more (struct varobj *var, int to)
+varobj_has_more (const struct varobj *var, int to)
{
if (VEC_length (varobj_p, var->children) > to)
return 1;
inside that thread, returns GDB id of the thread -- which
is always positive. Otherwise, returns -1. */
int
-varobj_get_thread_id (struct varobj *var)
+varobj_get_thread_id (const struct varobj *var)
{
if (var->root->valid_block && var->root->thread_id > 0)
return var->root->thread_id;
}
int
-varobj_get_frozen (struct varobj *var)
+varobj_get_frozen (const struct varobj *var)
{
return var->frozen;
}
}
}
-#if HAVE_PYTHON
-
/* A helper for update_dynamic_varobj_children that installs a new
child when needed. */
install_dynamic_child (struct varobj *var,
VEC (varobj_p) **changed,
VEC (varobj_p) **type_changed,
- VEC (varobj_p) **new,
+ VEC (varobj_p) **newobj,
VEC (varobj_p) **unchanged,
int *cchanged,
int index,
- char *name,
- struct value *value)
+ struct varobj_item *item)
{
if (VEC_length (varobj_p, var->children) < index + 1)
{
/* There's no child yet. */
- struct varobj *child = varobj_add_child (var, name, value);
+ struct varobj *child = varobj_add_child (var, item);
- if (new)
+ if (newobj)
{
- VEC_safe_push (varobj_p, *new, child);
+ VEC_safe_push (varobj_p, *newobj, child);
*cchanged = 1;
}
}
else
{
varobj_p existing = VEC_index (varobj_p, var->children, index);
- int type_updated = update_type_if_necessary (existing, value);
+ int type_updated = update_type_if_necessary (existing, item->value);
if (type_updated)
{
if (type_changed)
VEC_safe_push (varobj_p, *type_changed, existing);
}
- if (install_new_value (existing, value, 0))
+ if (install_new_value (existing, item->value, 0))
{
if (!type_updated && changed)
VEC_safe_push (varobj_p, *changed, existing);
}
}
+#if HAVE_PYTHON
+
static int
-dynamic_varobj_has_child_method (struct varobj *var)
+dynamic_varobj_has_child_method (const struct varobj *var)
{
struct cleanup *back_to;
PyObject *printer = var->dynamic->pretty_printer;
do_cleanups (back_to);
return result;
}
+#endif
+
+/* A factory for creating dynamic varobj's iterators. Returns an
+ iterator object suitable for iterating over VAR's children. */
+static struct varobj_iter *
+varobj_get_iterator (struct varobj *var)
+{
+#if HAVE_PYTHON
+ if (var->dynamic->pretty_printer)
+ return py_varobj_get_iterator (var, var->dynamic->pretty_printer);
#endif
+ gdb_assert_not_reached (_("\
+requested an iterator from a non-dynamic varobj"));
+}
+
+/* Release and clear VAR's saved item, if any. */
+
+static void
+varobj_clear_saved_item (struct varobj_dynamic *var)
+{
+ if (var->saved_item != NULL)
+ {
+ value_free (var->saved_item->value);
+ xfree (var->saved_item);
+ var->saved_item = NULL;
+ }
+}
+
static int
update_dynamic_varobj_children (struct varobj *var,
VEC (varobj_p) **changed,
VEC (varobj_p) **type_changed,
- VEC (varobj_p) **new,
+ VEC (varobj_p) **newobj,
VEC (varobj_p) **unchanged,
int *cchanged,
int update_children,
int from,
int to)
{
-#if HAVE_PYTHON
- struct cleanup *back_to;
- PyObject *children;
int i;
- PyObject *printer = var->dynamic->pretty_printer;
-
- if (!gdb_python_initialized)
- return 0;
-
- back_to = varobj_ensure_python_env (var);
*cchanged = 0;
- if (!PyObject_HasAttr (printer, gdbpy_children_cst))
- {
- do_cleanups (back_to);
- return 0;
- }
if (update_children || var->dynamic->child_iter == NULL)
{
- children = PyObject_CallMethodObjArgs (printer, gdbpy_children_cst,
- NULL);
+ varobj_iter_delete (var->dynamic->child_iter);
+ var->dynamic->child_iter = varobj_get_iterator (var);
- if (!children)
- {
- gdbpy_print_stack ();
- error (_("Null value returned for children"));
- }
+ varobj_clear_saved_item (var->dynamic);
- make_cleanup_py_decref (children);
+ i = 0;
- Py_XDECREF (var->dynamic->child_iter);
- var->dynamic->child_iter = PyObject_GetIter (children);
if (var->dynamic->child_iter == NULL)
- {
- gdbpy_print_stack ();
- error (_("Could not get children iterator"));
- }
-
- Py_XDECREF (var->dynamic->saved_item);
- var->dynamic->saved_item = NULL;
-
- i = 0;
+ return 0;
}
else
i = VEC_length (varobj_p, var->children);
are more children. */
for (; to < 0 || i < to + 1; ++i)
{
- PyObject *item;
- int force_done = 0;
+ varobj_item *item;
/* See if there was a leftover from last time. */
- if (var->dynamic->saved_item)
+ if (var->dynamic->saved_item != NULL)
{
item = var->dynamic->saved_item;
var->dynamic->saved_item = NULL;
}
else
- item = PyIter_Next (var->dynamic->child_iter);
-
- if (!item)
{
- /* Normal end of iteration. */
- if (!PyErr_Occurred ())
- break;
-
- /* If we got a memory error, just use the text as the
- item. */
- if (PyErr_ExceptionMatches (gdbpy_gdb_memory_error))
- {
- PyObject *type, *value, *trace;
- char *name_str, *value_str;
-
- PyErr_Fetch (&type, &value, &trace);
- value_str = gdbpy_exception_to_string (type, value);
- Py_XDECREF (type);
- Py_XDECREF (value);
- Py_XDECREF (trace);
- if (!value_str)
- {
- gdbpy_print_stack ();
- break;
- }
-
- name_str = xstrprintf ("<error at %d>", i);
- item = Py_BuildValue ("(ss)", name_str, value_str);
- xfree (name_str);
- xfree (value_str);
- if (!item)
- {
- gdbpy_print_stack ();
- break;
- }
-
- force_done = 1;
- }
- else
- {
- /* Any other kind of error. */
- gdbpy_print_stack ();
- break;
- }
+ item = varobj_iter_next (var->dynamic->child_iter);
+ /* Release vitem->value so its lifetime is not bound to the
+ execution of a command. */
+ if (item != NULL && item->value != NULL)
+ release_value_or_incref (item->value);
}
+ if (item == NULL)
+ {
+ /* Iteration is done. Remove iterator from VAR. */
+ varobj_iter_delete (var->dynamic->child_iter);
+ var->dynamic->child_iter = NULL;
+ break;
+ }
/* We don't want to push the extra child on any report list. */
if (to < 0 || i < to)
{
- PyObject *py_v;
- const char *name;
- struct value *v;
- struct cleanup *inner;
int can_mention = from < 0 || i >= from;
- inner = make_cleanup_py_decref (item);
-
- if (!PyArg_ParseTuple (item, "sO", &name, &py_v))
- {
- gdbpy_print_stack ();
- error (_("Invalid item from the child list"));
- }
-
- v = convert_value_from_python (py_v);
- if (v == NULL)
- gdbpy_print_stack ();
install_dynamic_child (var, can_mention ? changed : NULL,
can_mention ? type_changed : NULL,
- can_mention ? new : NULL,
+ can_mention ? newobj : NULL,
can_mention ? unchanged : NULL,
can_mention ? cchanged : NULL, i,
- xstrdup (name), v);
- do_cleanups (inner);
+ item);
+
+ xfree (item);
}
else
{
- Py_XDECREF (var->dynamic->saved_item);
var->dynamic->saved_item = item;
/* We want to truncate the child list just before this
element. */
break;
}
-
- if (force_done)
- break;
}
if (i < VEC_length (varobj_p, var->children))
*cchanged = 1;
var->num_children = VEC_length (varobj_p, var->children);
-
- do_cleanups (back_to);
return 1;
-#else
- gdb_assert_not_reached ("should never be called if Python is not enabled");
-#endif
}
int
{
if (var->num_children == -1)
{
- if (var->dynamic->pretty_printer != NULL)
+ if (varobj_is_dynamic_p (var))
{
int dummy;
var->dynamic->children_requested = 1;
- if (var->dynamic->pretty_printer != NULL)
+ if (varobj_is_dynamic_p (var))
{
/* This, in theory, can result in the number of children changing without
frontend noticing. But well, calling -var-list-children on the same
return var->children;
}
-#if HAVE_PYTHON
-
static struct varobj *
-varobj_add_child (struct varobj *var, char *name, struct value *value)
+varobj_add_child (struct varobj *var, struct varobj_item *item)
{
- varobj_p v = create_child_with_value (var,
+ varobj_p v = create_child_with_value (var,
VEC_length (varobj_p, var->children),
- name, value);
+ item);
VEC_safe_push (varobj_p, var->children, v);
return v;
}
-#endif /* HAVE_PYTHON */
-
/* Obtain the type of an object Variable as a string similar to the one gdb
- prints on the console. */
+ prints on the console. The caller is responsible for freeing the string.
+ */
char *
varobj_get_type (struct varobj *var)
/* Obtain the type of an object variable. */
struct type *
-varobj_get_gdb_type (struct varobj *var)
+varobj_get_gdb_type (const struct varobj *var)
{
return var->type;
}
a valid path expression? */
static int
-is_path_expr_parent (struct varobj *var)
+is_path_expr_parent (const struct varobj *var)
{
- struct type *type;
-
- /* "Fake" children are not path_expr parents. */
- if (CPLUS_FAKE_CHILD (var))
- return 0;
+ gdb_assert (var->root->lang_ops->is_path_expr_parent != NULL);
+ return var->root->lang_ops->is_path_expr_parent (var);
+}
- type = varobj_get_value_type (var);
+/* Is VAR a path expression parent, i.e., can it be used to construct
+ a valid path expression? By default we assume any VAR can be a path
+ parent. */
- /* Anonymous unions and structs are also not path_expr parents. */
- return !((TYPE_CODE (type) == TYPE_CODE_STRUCT
- || TYPE_CODE (type) == TYPE_CODE_UNION)
- && TYPE_NAME (type) == NULL);
+int
+varobj_default_is_path_expr_parent (const struct varobj *var)
+{
+ return 1;
}
/* Return the path expression parent for VAR. */
-struct varobj *
-varobj_get_path_expr_parent (struct varobj *var)
+const struct varobj *
+varobj_get_path_expr_parent (const struct varobj *var)
{
- struct varobj *parent = var;
+ const struct varobj *parent = var;
while (!is_root_p (parent) && !is_path_expr_parent (parent))
parent = parent->parent;
/* Return a pointer to the full rooted expression of varobj VAR.
If it has not been computed yet, compute it. */
char *
-varobj_get_path_expr (struct varobj *var)
+varobj_get_path_expr (const struct varobj *var)
{
- if (var->path_expr != NULL)
- return var->path_expr;
- else
+ if (var->path_expr == NULL)
{
/* For root varobjs, we initialize path_expr
when creating varobj, so here it should be
child varobj. */
+ struct varobj *mutable_var = (struct varobj *) var;
gdb_assert (!is_root_p (var));
- return (*var->root->lang_ops->path_expr_of_child) (var);
+
+ mutable_var->path_expr = (*var->root->lang_ops->path_expr_of_child) (var);
}
+
+ return var->path_expr;
}
const struct language_defn *
-varobj_get_language (struct varobj *var)
+varobj_get_language (const struct varobj *var)
{
return var->root->exp->language_defn;
}
int
-varobj_get_attributes (struct varobj *var)
+varobj_get_attributes (const struct varobj *var)
{
int attributes = 0;
return attributes;
}
+/* Return true if VAR is a dynamic varobj. */
+
int
-varobj_pretty_printed_p (struct varobj *var)
+varobj_is_dynamic_p (const struct varobj *var)
{
return var->dynamic->pretty_printer != NULL;
}
struct value *value = NULL; /* Initialize to keep gcc happy. */
int saved_input_radix = input_radix;
const char *s = expression;
- volatile struct gdb_exception except;
gdb_assert (varobj_editable_p (var));
input_radix = 10; /* ALWAYS reset to decimal temporarily. */
exp = parse_exp_1 (&s, 0, 0, 0);
- TRY_CATCH (except, RETURN_MASK_ERROR)
+ TRY
{
value = evaluate_expression (exp);
}
- if (except.reason < 0)
+ CATCH (except, RETURN_MASK_ERROR)
{
/* We cannot proceed without a valid expression. */
xfree (exp);
return 0;
}
+ END_CATCH
/* All types that are editable must also be changeable. */
gdb_assert (varobj_value_is_changeable_p (var));
/* The new value may be lazy. value_assign, or
rather value_contents, will take care of this. */
- TRY_CATCH (except, RETURN_MASK_ERROR)
+ TRY
{
val = value_assign (var->value, value);
}
- if (except.reason < 0)
- return 0;
+ CATCH (except, RETURN_MASK_ERROR)
+ {
+ return 0;
+ }
+ END_CATCH
/* If the value has changed, record it, so that next -var-update can
report this change. If a variable had a value of '1', we've set it
Py_XDECREF (var->pretty_printer);
var->pretty_printer = visualizer;
- Py_XDECREF (var->child_iter);
+ varobj_iter_delete (var->child_iter);
var->child_iter = NULL;
}
{
struct type *new_type;
char *curr_type_str, *new_type_str;
+ int type_name_changed;
new_type = value_actual_type (new_value, 0, 0);
new_type_str = type_to_string (new_type);
curr_type_str = varobj_get_type (var);
- if (strcmp (curr_type_str, new_type_str) != 0)
+ type_name_changed = strcmp (curr_type_str, new_type_str) != 0;
+ xfree (curr_type_str);
+ xfree (new_type_str);
+
+ if (type_name_changed)
{
var->type = new_type;
will be lazy, which means we've lost that old value. */
if (need_to_fetch && value && value_lazy (value))
{
- struct varobj *parent = var->parent;
+ const struct varobj *parent = var->parent;
int frozen = var->frozen;
for (; !frozen && parent; parent = parent->parent)
}
else
{
- volatile struct gdb_exception except;
- TRY_CATCH (except, RETURN_MASK_ERROR)
+ TRY
{
value_fetch_lazy (value);
}
- if (except.reason < 0)
+ CATCH (except, RETURN_MASK_ERROR)
{
/* Set the value to NULL, so that for the next -var-update,
we don't try to compare the new value with this value,
that we couldn't even read. */
value = NULL;
}
+ END_CATCH
}
}
selected sub-range of VAR. If no range was selected using
-var-set-update-range, then both will be -1. */
void
-varobj_get_child_range (struct varobj *var, int *from, int *to)
+varobj_get_child_range (const struct varobj *var, int *from, int *to)
{
*from = var->from;
*to = var->to;
NEW_VALUE may be NULL, if the varobj is now out of scope. */
static int
-varobj_value_has_mutated (struct varobj *var, struct value *new_value,
+varobj_value_has_mutated (const struct varobj *var, struct value *new_value,
struct type *new_type)
{
/* If we haven't previously computed the number of children in var,
to point to the new varobj. */
VEC(varobj_update_result) *
-varobj_update (struct varobj **varp, int explicit)
+varobj_update (struct varobj **varp, int is_explicit)
{
int type_changed = 0;
int i;
- struct value *new;
+ struct value *newobj;
VEC (varobj_update_result) *stack = NULL;
VEC (varobj_update_result) *result = NULL;
changing type. One use case for frozen varobjs is
retaining previously evaluated expressions, and we don't
want them to be reevaluated at all. */
- if (!explicit && (*varp)->frozen)
+ if (!is_explicit && (*varp)->frozen)
return result;
if (!(*varp)->root->is_valid)
the frame in which a local existed. We are letting the
value_of_root variable dispose of the varobj if the type
has changed. */
- new = value_of_root (varp, &type_changed);
- if (update_type_if_necessary(*varp, new))
+ newobj = value_of_root (varp, &type_changed);
+ if (update_type_if_necessary(*varp, newobj))
type_changed = 1;
r.varobj = *varp;
r.type_changed = type_changed;
- if (install_new_value ((*varp), new, type_changed))
+ if (install_new_value ((*varp), newobj, type_changed))
r.changed = 1;
- if (new == NULL)
+ if (newobj == NULL)
r.status = VAROBJ_NOT_IN_SCOPE;
r.value_installed = 1;
{
struct type *new_type;
- new = value_of_child (v->parent, v->index);
- if (update_type_if_necessary(v, new))
+ newobj = value_of_child (v->parent, v->index);
+ if (update_type_if_necessary(v, newobj))
r.type_changed = 1;
- if (new)
- new_type = value_type (new);
+ if (newobj)
+ new_type = value_type (newobj);
else
new_type = v->root->lang_ops->type_of_child (v->parent, v->index);
- if (varobj_value_has_mutated (v, new, new_type))
+ if (varobj_value_has_mutated (v, newobj, new_type))
{
/* The children are no longer valid; delete them now.
Report the fact that its type changed as well. */
r.type_changed = 1;
}
- if (install_new_value (v, new, r.type_changed))
+ if (install_new_value (v, newobj, r.type_changed))
{
r.changed = 1;
v->updated = 0;
}
}
- /* We probably should not get children of a varobj that has a
- pretty-printer, but for which -var-list-children was never
- invoked. */
- if (v->dynamic->pretty_printer != NULL)
+ /* We probably should not get children of a dynamic varobj, but
+ for which -var-list-children was never invoked. */
+ if (varobj_is_dynamic_p (v))
{
VEC (varobj_p) *changed = 0, *type_changed = 0, *unchanged = 0;
- VEC (varobj_p) *new = 0;
+ VEC (varobj_p) *newobj = 0;
int i, children_changed = 0;
if (v->frozen)
/* If update_dynamic_varobj_children returns 0, then we have
a non-conforming pretty-printer, so we skip it. */
- if (update_dynamic_varobj_children (v, &changed, &type_changed, &new,
+ if (update_dynamic_varobj_children (v, &changed, &type_changed, &newobj,
&unchanged, &children_changed, 1,
v->from, v->to))
{
- if (children_changed || new)
+ if (children_changed || newobj)
{
r.children_changed = 1;
- r.new = new;
+ r.newobj = newobj;
}
/* Push in reverse order so that the first child is
popped from the work stack first, and so will be
}
-/* Create and install a child of the parent of the given name. */
+/* Create and install a child of the parent of the given name.
+
+ The created VAROBJ takes ownership of the allocated NAME. */
+
static struct varobj *
create_child (struct varobj *parent, int index, char *name)
{
- return create_child_with_value (parent, index, name,
- value_of_child (parent, index));
+ struct varobj_item item;
+
+ item.name = name;
+ item.value = value_of_child (parent, index);
+
+ return create_child_with_value (parent, index, &item);
}
static struct varobj *
-create_child_with_value (struct varobj *parent, int index, char *name,
- struct value *value)
+create_child_with_value (struct varobj *parent, int index,
+ struct varobj_item *item)
{
struct varobj *child;
char *childs_name;
child = new_variable ();
/* NAME is allocated by caller. */
- child->name = name;
+ child->name = item->name;
child->index = index;
child->parent = parent;
child->root = parent->root;
if (varobj_is_anonymous_child (child))
childs_name = xstrprintf ("%s.%d_anonymous", parent->obj_name, index);
else
- childs_name = xstrprintf ("%s.%s", parent->obj_name, name);
+ childs_name = xstrprintf ("%s.%s", parent->obj_name, item->name);
child->obj_name = childs_name;
install_variable (child);
/* Compute the type of the child. Must do this before
calling install_new_value. */
- if (value != NULL)
+ if (item->value != NULL)
/* If the child had no evaluation errors, var->value
will be non-NULL and contain a valid type. */
- child->type = value_actual_type (value, 0, NULL);
+ child->type = value_actual_type (item->value, 0, NULL);
else
/* Otherwise, we must compute the type. */
child->type = (*child->root->lang_ops->type_of_child) (child->parent,
child->index);
- install_new_value (child, value, 1);
+ install_new_value (child, item->value, 1);
return child;
}
Py_XDECREF (var->dynamic->constructor);
Py_XDECREF (var->dynamic->pretty_printer);
- Py_XDECREF (var->dynamic->child_iter);
- Py_XDECREF (var->dynamic->saved_item);
do_cleanups (cleanup);
}
#endif
+ varobj_iter_delete (var->dynamic->child_iter);
+ varobj_clear_saved_item (var->dynamic);
value_free (var->value);
/* Free the expression if this is a root variable. */
For example, top-level references are always stripped. */
struct type *
-varobj_get_value_type (struct varobj *var)
+varobj_get_value_type (const struct varobj *var)
{
struct type *type;
is the number of children that the user will see in the variable
display. */
static int
-number_of_children (struct varobj *var)
+number_of_children (const struct varobj *var)
{
return (*var->root->lang_ops->number_of_children) (var);
}
/* What is the expression for the root varobj VAR? Returns a malloc'd
string. */
static char *
-name_of_variable (struct varobj *var)
+name_of_variable (const struct varobj *var)
{
return (*var->root->lang_ops->name_of_variable) (var);
}
to it and return 1. Otherwise, return 0. */
static int
-check_scope (struct varobj *var)
+check_scope (const struct varobj *var)
{
struct frame_info *fi;
int scope;
if (within_scope)
{
- volatile struct gdb_exception except;
/* We need to catch errors here, because if evaluate
expression fails we want to just return NULL. */
- TRY_CATCH (except, RETURN_MASK_ERROR)
+ TRY
{
new_val = evaluate_expression (var->root->exp);
}
+ CATCH (except, RETURN_MASK_ERROR)
+ {
+ }
+ END_CATCH
}
do_cleanups (back_to);
/* What is the ``struct value *'' for the INDEX'th child of PARENT? */
static struct value *
-value_of_child (struct varobj *parent, int index)
+value_of_child (const struct varobj *parent, int index)
{
struct value *value;
char *
varobj_value_get_print_value (struct value *value,
enum varobj_display_formats format,
- struct varobj *var)
+ const struct varobj *var)
{
struct ui_file *stb;
struct cleanup *old_chain;
}
int
-varobj_editable_p (struct varobj *var)
+varobj_editable_p (const struct varobj *var)
{
struct type *type;
/* Call VAR's value_is_changeable_p language-specific callback. */
int
-varobj_value_is_changeable_p (struct varobj *var)
+varobj_value_is_changeable_p (const struct varobj *var)
{
return var->root->lang_ops->value_is_changeable_p (var);
}
selected frame, and not bound to thread/frame. Such variable objects
are created using '@' as frame specifier to -var-create. */
int
-varobj_floating_p (struct varobj *var)
+varobj_floating_p (const struct varobj *var)
{
return var->root->floating;
}
languages. */
int
-varobj_default_value_is_changeable_p (struct varobj *var)
+varobj_default_value_is_changeable_p (const struct varobj *var)
{
int r;
struct type *type;
(*func) (var_root->rootvar, data);
}
}
-\f
-extern void _initialize_varobj (void);
-void
-_initialize_varobj (void)
-{
- int sizeof_table = sizeof (struct vlist *) * VAROBJ_TABLE_SIZE;
-
- varobj_table = xmalloc (sizeof_table);
- memset (varobj_table, 0, sizeof_table);
-
- add_setshow_zuinteger_cmd ("varobj", class_maintenance,
- &varobjdebug,
- _("Set varobj debugging."),
- _("Show varobj debugging."),
- _("When non-zero, varobj debugging is enabled."),
- NULL, show_varobjdebug,
- &setdebuglist, &showdebuglist);
-}
/* Invalidate varobj VAR if it is tied to locals and re-create it if it is
defined on globals. It is a helper for varobj_invalidate.
{
all_root_varobjs (varobj_invalidate_iter, NULL);
}
+\f
+extern void _initialize_varobj (void);
+void
+_initialize_varobj (void)
+{
+ int sizeof_table = sizeof (struct vlist *) * VAROBJ_TABLE_SIZE;
+
+ varobj_table = xmalloc (sizeof_table);
+ memset (varobj_table, 0, sizeof_table);
+
+ add_setshow_zuinteger_cmd ("varobj", class_maintenance,
+ &varobjdebug,
+ _("Set varobj debugging."),
+ _("Show varobj debugging."),
+ _("When non-zero, varobj debugging is enabled."),
+ NULL, show_varobjdebug,
+ &setdebuglist, &showdebuglist);
+}
projects / deliverable / binutils-gdb.git / blobdiff