diff options
| -rw-r--r-- | Include/cpython/abstract.h | 4 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/C API/2020-04-05-00-02-13.bpo-40170.IFsGZ-.rst | 3 | ||||
| -rw-r--r-- | Objects/abstract.c | 10 |
3 files changed, 14 insertions, 3 deletions
diff --git a/Include/cpython/abstract.h b/Include/cpython/abstract.h index 9d23c8c..3f834ff 100644 --- a/Include/cpython/abstract.h +++ b/Include/cpython/abstract.h @@ -264,9 +264,7 @@ PyAPI_FUNC(Py_ssize_t) PyObject_LengthHint(PyObject *o, Py_ssize_t); /* === New Buffer API ============================================ */ /* Return 1 if the getbuffer function is available, otherwise return 0. */ -#define PyObject_CheckBuffer(obj) \ - ((Py_TYPE(obj)->tp_as_buffer != NULL) && \ - (Py_TYPE(obj)->tp_as_buffer->bf_getbuffer != NULL)) +PyAPI_FUNC(int) PyObject_CheckBuffer(PyObject *obj); /* This is a C-API version of the getbuffer function call. It checks to make sure object has the required function pointer and issues the diff --git a/Misc/NEWS.d/next/C API/2020-04-05-00-02-13.bpo-40170.IFsGZ-.rst b/Misc/NEWS.d/next/C API/2020-04-05-00-02-13.bpo-40170.IFsGZ-.rst new file mode 100644 index 0000000..fb378fa --- /dev/null +++ b/Misc/NEWS.d/next/C API/2020-04-05-00-02-13.bpo-40170.IFsGZ-.rst @@ -0,0 +1,3 @@ +Convert :c:func:`PyObject_CheckBuffer` macro to a function to hide +implementation details: the macro accessed directly the +:c:member:`PyTypeObject.tp_as_buffer` member. diff --git a/Objects/abstract.c b/Objects/abstract.c index e975edd..49a38d8 100644 --- a/Objects/abstract.c +++ b/Objects/abstract.c @@ -277,6 +277,16 @@ PyObject_DelItemString(PyObject *o, const char *key) return ret; } + +/* Return 1 if the getbuffer function is available, otherwise return 0. */ +int +PyObject_CheckBuffer(PyObject *obj) +{ + PyBufferProcs *tp_as_buffer = Py_TYPE(obj)->tp_as_buffer; + return (tp_as_buffer != NULL && tp_as_buffer->bf_getbuffer != NULL); +} + + /* We release the buffer right after use of this function which could cause issues later on. Don't use these functions in new code. */ |