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Turn gdbpy_ref into a template

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This turns gdbpy_ref into a template class, so that it can be used to
wrap subclasses of PyObject.  The default argument remains PyObject;
and this necessitated renaming uses of "gdbpy_ref" to "gdbpy_ref<>".

gdb/ChangeLog
2017-02-10  Tom Tromey  <tom@tromey.com>

	* python/py-ref.h (gdbpy_ref_policy): Now a template.
	(gdbpy_ref): Now a template; allow subclasses of PyObject to be
	used.
	* python/py-arch.c, python/py-bpevent.c, python/py-breakpoint.c,
	python/py-cmd.c, python/py-continueevent.c, python/py-event.c,
	python/py-exitedevent.c, python/py-finishbreakpoint.c,
	python/py-framefilter.c, python/py-function.c,
	python/py-inferior.c, python/py-infevents.c,
	python/py-linetable.c, python/py-newobjfileevent.c,
	python/py-param.c, python/py-prettyprint.c, python/py-ref.h,
	python/py-signalevent.c, python/py-stopevent.c,
	python/py-symbol.c, python/py-threadevent.c, python/py-type.c,
	python/py-unwind.c, python/py-utils.c, python/py-value.c,
	python/py-varobj.c, python/py-xmethods.c, python/python.c,
	varobj.c: Change gdbpy_ref to gdbpy_ref<>.
This commit is contained in:
Tom Tromey
2017-02-09 13:16:36 -07:00
parent d4b0bb186e
commit 7780f18678
30 changed files with 260 additions and 234 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
gdb/python/py-ref.h
View File

@ -1,6 +1,6 @@
/* Python reference-holding class
Copyright (C) 2016 Free Software Foundation, Inc.
Copyright (C) 2016-2017 Free Software Foundation, Inc.
This file is part of GDB.
@ -23,20 +23,23 @@
#include "common/gdb_ref_ptr.h"
/* A policy class for gdb::ref_ptr for Python reference counting. */
template<typename T>
struct gdbpy_ref_policy
{
static void incref (PyObject *ptr)
static void incref (T *ptr)
{
Py_INCREF (ptr);
}
static void decref (PyObject *ptr)
static void decref (T *ptr)
{
Py_DECREF (ptr);
}
};
/* A gdb::ref_ptr that has been specialized for Python objects. */
typedef gdb::ref_ptr<PyObject, gdbpy_ref_policy> gdbpy_ref;
/* A gdb::ref_ptr that has been specialized for Python objects or
their "subclasses". */
template<typename T = PyObject> using gdbpy_ref
= gdb::ref_ptr<T, gdbpy_ref_policy<T>>;
#endif /* GDB_PYTHON_REF_H */