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authorTom Tromey <tom@tromey.com>2018-04-04 16:08:42 -0600
committerTom Tromey <tom@tromey.com>2018-04-06 15:44:50 -0600
commit2c8331b987f41fa53ed371d0bbeaa3cea50bd514 (patch)
tree353e1d7956e8df37fcf4c0623140fcaeda0f2351 /gdb/value.c
parent466ce3aea9cec006b8b0e348c9021ac2c8106022 (diff)
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Change value::parent to a value_ref_ptr
This changes value::parent to a value_ref_ptr. This removes a bit of manual reference count management. gdb/ChangeLog 2018-04-06 Tom Tromey <tom@tromey.com> * value.c (~value): Update. (struct value) <parent>: Now a value_ref_ptr. (value_parent, set_value_parent, value_address, value_copy): Update.
Diffstat (limited to 'gdb/value.c')
-rw-r--r--gdb/value.c20
1 files changed, 5 insertions, 15 deletions
diff --git a/gdb/value.c b/gdb/value.c
index fcd0007..6116b68 100644
--- a/gdb/value.c
+++ b/gdb/value.c
@@ -181,11 +181,6 @@ struct value
~value ()
{
- /* If there's an associated parent value, drop our reference to
- it. */
- if (parent != NULL)
- value_decref (parent);
-
if (VALUE_LVAL (this) == lval_computed)
{
const struct lval_funcs *funcs = location.computed.funcs;
@@ -292,7 +287,7 @@ struct value
/* Only used for bitfields; the containing value. This allows a
single read from the target when displaying multiple
bitfields. */
- struct value *parent = nullptr;
+ value_ref_ptr parent;
/* Type of the value. */
struct type *type;
@@ -1128,7 +1123,7 @@ set_value_bitsize (struct value *value, LONGEST bit)
struct value *
value_parent (const struct value *value)
{
- return value->parent;
+ return value->parent.get ();
}
/* See value.h. */
@@ -1136,12 +1131,7 @@ value_parent (const struct value *value)
void
set_value_parent (struct value *value, struct value *parent)
{
- struct value *old = value->parent;
-
- value->parent = parent;
- if (parent != NULL)
- value_incref (parent);
- value_decref (old);
+ value->parent = value_ref_ptr (value_incref (parent));
}
gdb_byte *
@@ -1521,7 +1511,7 @@ value_address (const struct value *value)
if (value->lval != lval_memory)
return 0;
if (value->parent != NULL)
- return value_address (value->parent) + value->offset;
+ return value_address (value->parent.get ()) + value->offset;
if (NULL != TYPE_DATA_LOCATION (value_type (value)))
{
gdb_assert (PROP_CONST == TYPE_DATA_LOCATION_KIND (value_type (value)));
@@ -1700,7 +1690,7 @@ value_copy (struct value *arg)
}
val->unavailable = VEC_copy (range_s, arg->unavailable);
val->optimized_out = VEC_copy (range_s, arg->optimized_out);
- set_value_parent (val, arg->parent);
+ val->parent = arg->parent;
if (VALUE_LVAL (val) == lval_computed)
{
const struct lval_funcs *funcs = val->location.computed.funcs;