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Use gdbpy_ref rather than make_cleanup_py_decref

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This changes some spots in py-framefilter.c to use gdbpy_ref rather
than make_cleanup_py_decref or make_cleanup_py_xdecref.

2017-01-10  Tom Tromey  <tom@tromey.com>

	* python/py-framefilter.c (py_mi_print_variables): Use gdbpy_ref.
	(py_print_locals, enumerate_locals, py_print_args): Use gdbpy_ref.
This commit is contained in:
Tom Tromey 2016-11-20 11:04:40 -07:00
parent 06fc9bf7d9
commit 13df46cc0f
2 changed files with 33 additions and 31 deletions
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5
gdb/ChangeLog
View File

@ -1,3 +1,8 @@
2017-01-10 Tom Tromey <tom@tromey.com>
* python/py-framefilter.c (py_mi_print_variables): Use gdbpy_ref.
(py_print_locals, enumerate_locals, py_print_args): Use gdbpy_ref.
2017-01-10 Tom Tromey <tom@tromey.com>
* python/py-framefilter.c (enumerate_args): Use gdbpy_ref.

59
gdb/python/py-framefilter.c
View File

@ -693,13 +693,12 @@ enumerate_locals (PyObject *iter,
int print_args_field,
struct frame_info *frame)
{
PyObject *item;
struct value_print_options opts;
get_user_print_options (&opts);
opts.deref_ref = 1;
while ((item = PyIter_Next (iter)))
while (true)
{
const struct language_defn *language;
gdb::unique_xmalloc_ptr<char> sym_name;
@ -710,16 +709,21 @@ enumerate_locals (PyObject *iter,
int local_indent = 8 + (8 * indent);
struct cleanup *locals_cleanups;
locals_cleanups = make_cleanup_py_decref (item);
gdbpy_ref item (PyIter_Next (iter));
if (item == NULL)
break;
success = extract_sym (item, &sym_name, &sym, &sym_block, &language);
locals_cleanups = make_cleanup (null_cleanup, NULL);
success = extract_sym (item.get (), &sym_name, &sym, &sym_block,
&language);
if (success == EXT_LANG_BT_ERROR)
{
do_cleanups (locals_cleanups);
goto error;
}
success = extract_value (item, &val);
success = extract_value (item.get (), &val);
if (success == EXT_LANG_BT_ERROR)
{
do_cleanups (locals_cleanups);
@ -827,10 +831,8 @@ enumerate_locals (PyObject *iter,
END_CATCH
}
if (item == NULL && PyErr_Occurred ())
goto error;
return EXT_LANG_BT_OK;
if (!PyErr_Occurred ())
return EXT_LANG_BT_OK;
error:
return EXT_LANG_BT_ERROR;
@ -846,28 +848,24 @@ py_mi_print_variables (PyObject *filter, struct ui_out *out,
struct frame_info *frame)
{
struct cleanup *old_chain;
PyObject *args_iter;
PyObject *locals_iter;
args_iter = get_py_iter_from_func (filter, "frame_args");
old_chain = make_cleanup_py_xdecref (args_iter);
gdbpy_ref args_iter (get_py_iter_from_func (filter, "frame_args"));
if (args_iter == NULL)
goto error;
return EXT_LANG_BT_ERROR;
locals_iter = get_py_iter_from_func (filter, "frame_locals");
gdbpy_ref locals_iter (get_py_iter_from_func (filter, "frame_locals"));
if (locals_iter == NULL)
goto error;
return EXT_LANG_BT_ERROR;
make_cleanup_py_decref (locals_iter);
make_cleanup_ui_out_list_begin_end (out, "variables");
old_chain = make_cleanup_ui_out_list_begin_end (out, "variables");
if (args_iter != Py_None)
if (enumerate_args (args_iter, out, args_type, 1, frame)
if (enumerate_args (args_iter.get (), out, args_type, 1, frame)
== EXT_LANG_BT_ERROR)
goto error;
if (locals_iter != Py_None)
if (enumerate_locals (locals_iter, out, 1, args_type, 1, frame)
if (enumerate_locals (locals_iter.get (), out, 1, args_type, 1, frame)
== EXT_LANG_BT_ERROR)
goto error;
@ -890,17 +888,16 @@ py_print_locals (PyObject *filter,
int indent,
struct frame_info *frame)
{
PyObject *locals_iter = get_py_iter_from_func (filter,
"frame_locals");
struct cleanup *old_chain = make_cleanup_py_xdecref (locals_iter);
struct cleanup *old_chain;
gdbpy_ref locals_iter (get_py_iter_from_func (filter, "frame_locals"));
if (locals_iter == NULL)
goto locals_error;
return EXT_LANG_BT_ERROR;
make_cleanup_ui_out_list_begin_end (out, "locals");
old_chain = make_cleanup_ui_out_list_begin_end (out, "locals");
if (locals_iter != Py_None)
if (enumerate_locals (locals_iter, out, indent, args_type,
if (enumerate_locals (locals_iter.get (), out, indent, args_type,
0, frame) == EXT_LANG_BT_ERROR)
goto locals_error;
@ -923,13 +920,13 @@ py_print_args (PyObject *filter,
enum ext_lang_frame_args args_type,
struct frame_info *frame)
{
PyObject *args_iter = get_py_iter_from_func (filter, "frame_args");
struct cleanup *old_chain = make_cleanup_py_xdecref (args_iter);
struct cleanup *old_chain;
gdbpy_ref args_iter (get_py_iter_from_func (filter, "frame_args"));
if (args_iter == NULL)
goto args_error;
return EXT_LANG_BT_ERROR;
make_cleanup_ui_out_list_begin_end (out, "args");
old_chain = make_cleanup_ui_out_list_begin_end (out, "args");
TRY
{
@ -945,7 +942,7 @@ py_print_args (PyObject *filter,
END_CATCH
if (args_iter != Py_None)
if (enumerate_args (args_iter, out, args_type, 0, frame)
if (enumerate_args (args_iter.get (), out, args_type, 0, frame)
== EXT_LANG_BT_ERROR)
goto args_error;