[RFA 02/13] Use gdbpy_ref in gdbpy_breakpoint_cond_says_stop

[Tom Tromey <tom@tromey.com>]

This changes gdbpy_breakpoint_cond_says_stop to use gdbpy_ref rather
than explicit reference management.

2016-11-20  Tom Tromey  <tom@tromey.com>

	* python/py-breakpoint.c (gdbpy_breakpoint_cond_says_stop): Use
	gdbpy_ref.
---
 gdb/ChangeLog              | 5 +++++
 gdb/python/py-breakpoint.c | 8 +++-----
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 527053f..ebb4d71 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,10 @@
 2016-11-20  Tom Tromey  <tom@tromey.com>
 
+	* python/py-breakpoint.c (gdbpy_breakpoint_cond_says_stop): Use
+	gdbpy_ref.
+
+2016-11-20  Tom Tromey  <tom@tromey.com>
+
 	* python/py-arch.c (archpy_disassemble): Use gdbpy_ref.  Don't
 	decref results of PyArg_ParseTupleAndKeywords.
 
diff --git a/gdb/python/py-breakpoint.c b/gdb/python/py-breakpoint.c
index 198669b..418b637 100644
--- a/gdb/python/py-breakpoint.c
+++ b/gdb/python/py-breakpoint.c
@@ -805,12 +805,12 @@ gdbpy_breakpoint_cond_says_stop (const struct extension_language_defn *extlang,
 
   if (PyObject_HasAttrString (py_bp, stop_func))
     {
-      PyObject *result = PyObject_CallMethod (py_bp, stop_func, NULL);
+      gdbpy_ref result (PyObject_CallMethod (py_bp, stop_func, NULL));
 
       stop = 1;
-      if (result)
+      if (result != NULL)
 	{
-	  int evaluate = PyObject_IsTrue (result);
+	  int evaluate = PyObject_IsTrue (result.get ());
 
 	  if (evaluate == -1)
 	    gdbpy_print_stack ();
@@ -819,8 +819,6 @@ gdbpy_breakpoint_cond_says_stop (const struct extension_language_defn *extlang,
 	     the Python breakpoint wants GDB to continue.  */
 	  if (! evaluate)
 	    stop = 0;
-
-	  Py_DECREF (result);
 	}
       else
 	gdbpy_print_stack ();
-- 
2.7.4