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bpo-41262: Convert memoryview to Argument Clinic. (GH-21421)

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Serhiy Storchaka 2020-07-18 11:12:05 +03:00 committed by GitHub
parent b4c98ed41e
commit 80a50368c0
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 267 additions and 74 deletions
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194
Objects/clinic/memoryobject.c.h generated
View File

@ -2,6 +2,198 @@
preserve
[clinic start generated code]*/
PyDoc_STRVAR(memoryview__doc__,
"memoryview(object)\n"
"--\n"
"\n"
"Create a new memoryview object which references the given object.");
static PyObject *
memoryview_impl(PyTypeObject *type, PyObject *object);
static PyObject *
memoryview(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *return_value = NULL;
static const char * const _keywords[] = {"object", NULL};
static _PyArg_Parser _parser = {NULL, _keywords, "memoryview", 0};
PyObject *argsbuf[1];
PyObject * const *fastargs;
Py_ssize_t nargs = PyTuple_GET_SIZE(args);
PyObject *object;
fastargs = _PyArg_UnpackKeywords(_PyTuple_CAST(args)->ob_item, nargs, kwargs, NULL, &_parser, 1, 1, 0, argsbuf);
if (!fastargs) {
goto exit;
}
object = fastargs[0];
return_value = memoryview_impl(type, object);
exit:
return return_value;
}
PyDoc_STRVAR(memoryview_release__doc__,
"release($self, /)\n"
"--\n"
"\n"
"Release the underlying buffer exposed by the memoryview object.");
#define MEMORYVIEW_RELEASE_METHODDEF \
{"release", (PyCFunction)memoryview_release, METH_NOARGS, memoryview_release__doc__},
static PyObject *
memoryview_release_impl(PyMemoryViewObject *self);
static PyObject *
memoryview_release(PyMemoryViewObject *self, PyObject *Py_UNUSED(ignored))
{
return memoryview_release_impl(self);
}
PyDoc_STRVAR(memoryview_cast__doc__,
"cast($self, /, format, shape=<unrepresentable>)\n"
"--\n"
"\n"
"Cast a memoryview to a new format or shape.");
#define MEMORYVIEW_CAST_METHODDEF \
{"cast", (PyCFunction)(void(*)(void))memoryview_cast, METH_FASTCALL|METH_KEYWORDS, memoryview_cast__doc__},
static PyObject *
memoryview_cast_impl(PyMemoryViewObject *self, PyObject *format,
PyObject *shape);
static PyObject *
memoryview_cast(PyMemoryViewObject *self, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
PyObject *return_value = NULL;
static const char * const _keywords[] = {"format", "shape", NULL};
static _PyArg_Parser _parser = {NULL, _keywords, "cast", 0};
PyObject *argsbuf[2];
Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 1;
PyObject *format;
PyObject *shape = NULL;
args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 2, 0, argsbuf);
if (!args) {
goto exit;
}
if (!PyUnicode_Check(args[0])) {
_PyArg_BadArgument("cast", "argument 'format'", "str", args[0]);
goto exit;
}
if (PyUnicode_READY(args[0]) == -1) {
goto exit;
}
format = args[0];
if (!noptargs) {
goto skip_optional_pos;
}
shape = args[1];
skip_optional_pos:
return_value = memoryview_cast_impl(self, format, shape);
exit:
return return_value;
}
PyDoc_STRVAR(memoryview_toreadonly__doc__,
"toreadonly($self, /)\n"
"--\n"
"\n"
"Return a readonly version of the memoryview.");
#define MEMORYVIEW_TOREADONLY_METHODDEF \
{"toreadonly", (PyCFunction)memoryview_toreadonly, METH_NOARGS, memoryview_toreadonly__doc__},
static PyObject *
memoryview_toreadonly_impl(PyMemoryViewObject *self);
static PyObject *
memoryview_toreadonly(PyMemoryViewObject *self, PyObject *Py_UNUSED(ignored))
{
return memoryview_toreadonly_impl(self);
}
PyDoc_STRVAR(memoryview_tolist__doc__,
"tolist($self, /)\n"
"--\n"
"\n"
"Return the data in the buffer as a list of elements.");
#define MEMORYVIEW_TOLIST_METHODDEF \
{"tolist", (PyCFunction)memoryview_tolist, METH_NOARGS, memoryview_tolist__doc__},
static PyObject *
memoryview_tolist_impl(PyMemoryViewObject *self);
static PyObject *
memoryview_tolist(PyMemoryViewObject *self, PyObject *Py_UNUSED(ignored))
{
return memoryview_tolist_impl(self);
}
PyDoc_STRVAR(memoryview_tobytes__doc__,
"tobytes($self, /, order=\'C\')\n"
"--\n"
"\n"
"Return the data in the buffer as a byte string.\n"
"\n"
"Order can be {\'C\', \'F\', \'A\'}. When order is \'C\' or \'F\', the data of the\n"
"original array is converted to C or Fortran order. For contiguous views,\n"
"\'A\' returns an exact copy of the physical memory. In particular, in-memory\n"
"Fortran order is preserved. For non-contiguous views, the data is converted\n"
"to C first. order=None is the same as order=\'C\'.");
#define MEMORYVIEW_TOBYTES_METHODDEF \
{"tobytes", (PyCFunction)(void(*)(void))memoryview_tobytes, METH_FASTCALL|METH_KEYWORDS, memoryview_tobytes__doc__},
static PyObject *
memoryview_tobytes_impl(PyMemoryViewObject *self, const char *order);
static PyObject *
memoryview_tobytes(PyMemoryViewObject *self, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
PyObject *return_value = NULL;
static const char * const _keywords[] = {"order", NULL};
static _PyArg_Parser _parser = {NULL, _keywords, "tobytes", 0};
PyObject *argsbuf[1];
Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 0;
const char *order = NULL;
args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 0, 1, 0, argsbuf);
if (!args) {
goto exit;
}
if (!noptargs) {
goto skip_optional_pos;
}
if (args[0] == Py_None) {
order = NULL;
}
else if (PyUnicode_Check(args[0])) {
Py_ssize_t order_length;
order = PyUnicode_AsUTF8AndSize(args[0], &order_length);
if (order == NULL) {
goto exit;
}
if (strlen(order) != (size_t)order_length) {
PyErr_SetString(PyExc_ValueError, "embedded null character");
goto exit;
}
}
else {
_PyArg_BadArgument("tobytes", "argument 'order'", "str or None", args[0]);
goto exit;
}
skip_optional_pos:
return_value = memoryview_tobytes_impl(self, order);
exit:
return return_value;
}
PyDoc_STRVAR(memoryview_hex__doc__,
"hex($self, /, sep=<unrepresentable>, bytes_per_sep=1)\n"
"--\n"
@ -66,4 +258,4 @@ skip_optional_pos:
exit:
return return_value;
}
/*[clinic end generated code: output=91106ef704134b19 input=a9049054013a1b77]*/
/*[clinic end generated code: output=1b879bb934d18c66 input=a9049054013a1b77]*/

147
Objects/memoryobject.c
View File

@ -238,12 +238,6 @@ PyTypeObject _PyManagedBuffer_Type = {
#define REQ_FORMAT(flags) (flags&PyBUF_FORMAT)
PyDoc_STRVAR(memory_doc,
"memoryview(object)\n--\n\
\n\
Create a new memoryview object which references the given object.");
/**************************************************************************/
/* Copy memoryview buffers */
/**************************************************************************/
@ -961,18 +955,20 @@ PyMemoryView_GetContiguous(PyObject *obj, int buffertype, char order)
}
/*[clinic input]
@classmethod
memoryview.__new__
object: object
Create a new memoryview object which references the given object.
[clinic start generated code]*/
static PyObject *
memory_new(PyTypeObject *subtype, PyObject *args, PyObject *kwds)
memoryview_impl(PyTypeObject *type, PyObject *object)
/*[clinic end generated code: output=7de78e184ed66db8 input=f04429eb0bdf8c6e]*/
{
PyObject *obj;
static char *kwlist[] = {"object", NULL};
if (!PyArg_ParseTupleAndKeywords(args, kwds, "O:memoryview", kwlist,
&obj)) {
return NULL;
}
return PyMemoryView_FromObject(obj);
return PyMemoryView_FromObject(object);
}
@ -1062,8 +1058,15 @@ _memory_release(PyMemoryViewObject *self)
return -1;
}
/*[clinic input]
memoryview.release
Release the underlying buffer exposed by the memoryview object.
[clinic start generated code]*/
static PyObject *
memory_release(PyMemoryViewObject *self, PyObject *noargs)
memoryview_release_impl(PyMemoryViewObject *self)
/*[clinic end generated code: output=d0b7e3ba95b7fcb9 input=bc71d1d51f4a52f0]*/
{
if (_memory_release(self) < 0)
return NULL;
@ -1108,7 +1111,7 @@ memory_enter(PyObject *self, PyObject *args)
static PyObject *
memory_exit(PyObject *self, PyObject *args)
{
return memory_release((PyMemoryViewObject *)self, NULL);
return memoryview_release_impl((PyMemoryViewObject *)self);
}
@ -1352,26 +1355,25 @@ zero_in_shape(PyMemoryViewObject *mv)
All casts must result in views that will have the exact byte
size of the original input. Otherwise, an error is raised.
*/
/*[clinic input]
memoryview.cast
format: unicode
shape: object = NULL
Cast a memoryview to a new format or shape.
[clinic start generated code]*/
static PyObject *
memory_cast(PyMemoryViewObject *self, PyObject *args, PyObject *kwds)
memoryview_cast_impl(PyMemoryViewObject *self, PyObject *format,
PyObject *shape)
/*[clinic end generated code: output=bae520b3a389cbab input=138936cc9041b1a3]*/
{
static char *kwlist[] = {"format", "shape", NULL};
PyMemoryViewObject *mv = NULL;
PyObject *shape = NULL;
PyObject *format;
Py_ssize_t ndim = 1;
CHECK_RELEASED(self);
if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O", kwlist,
&format, &shape)) {
return NULL;
}
if (!PyUnicode_Check(format)) {
PyErr_SetString(PyExc_TypeError,
"memoryview: format argument must be a string");
return NULL;
}
if (!MV_C_CONTIGUOUS(self->flags)) {
PyErr_SetString(PyExc_TypeError,
"memoryview: casts are restricted to C-contiguous views");
@ -1415,8 +1417,15 @@ error:
return NULL;
}
/*[clinic input]
memoryview.toreadonly
Return a readonly version of the memoryview.
[clinic start generated code]*/
static PyObject *
memory_toreadonly(PyMemoryViewObject *self, PyObject *noargs)
memoryview_toreadonly_impl(PyMemoryViewObject *self)
/*[clinic end generated code: output=2c7e056f04c99e62 input=dc06d20f19ba236f]*/
{
CHECK_RELEASED(self);
/* Even if self is already readonly, we still need to create a new
@ -2109,13 +2118,20 @@ tolist_rec(const char *ptr, Py_ssize_t ndim, const Py_ssize_t *shape,
/* Return a list representation of the memoryview. Currently only buffers
with native format strings are supported. */
/*[clinic input]
memoryview.tolist
Return the data in the buffer as a list of elements.
[clinic start generated code]*/
static PyObject *
memory_tolist(PyMemoryViewObject *mv, PyObject *noargs)
memoryview_tolist_impl(PyMemoryViewObject *self)
/*[clinic end generated code: output=a6cda89214fd5a1b input=21e7d0c1860b211a]*/
{
const Py_buffer *view = &(mv->view);
const Py_buffer *view = &self->view;
const char *fmt;
CHECK_RELEASED(mv);
CHECK_RELEASED(self);
fmt = adjust_fmt(view);
if (fmt == NULL)
@ -2135,21 +2151,30 @@ memory_tolist(PyMemoryViewObject *mv, PyObject *noargs)
}
}
/*[clinic input]
memoryview.tobytes
order: str(accept={str, NoneType}, c_default="NULL") = 'C'
Return the data in the buffer as a byte string.
Order can be {'C', 'F', 'A'}. When order is 'C' or 'F', the data of the
original array is converted to C or Fortran order. For contiguous views,
'A' returns an exact copy of the physical memory. In particular, in-memory
Fortran order is preserved. For non-contiguous views, the data is converted
to C first. order=None is the same as order='C'.
[clinic start generated code]*/
static PyObject *
memory_tobytes(PyMemoryViewObject *self, PyObject *args, PyObject *kwds)
memoryview_tobytes_impl(PyMemoryViewObject *self, const char *order)
/*[clinic end generated code: output=1288b62560a32a23 input=0efa3ddaeda573a8]*/
{
static char *kwlist[] = {"order", NULL};
Py_buffer *src = VIEW_ADDR(self);
char *order = NULL;
char ord = 'C';
PyObject *bytes;
CHECK_RELEASED(self);
if (!PyArg_ParseTupleAndKeywords(args, kwds, "|z", kwlist, &order)) {
return NULL;
}
if (order) {
if (strcmp(order, "F") == 0) {
ord = 'F';
@ -3122,38 +3147,14 @@ static PyGetSetDef memory_getsetlist[] = {
{NULL, NULL, NULL, NULL},
};
PyDoc_STRVAR(memory_release_doc,
"release($self, /)\n--\n\
\n\
Release the underlying buffer exposed by the memoryview object.");
PyDoc_STRVAR(memory_tobytes_doc,
"tobytes($self, /, order=None)\n--\n\
\n\
Return the data in the buffer as a byte string. Order can be {'C', 'F', 'A'}.\n\
When order is 'C' or 'F', the data of the original array is converted to C or\n\
Fortran order. For contiguous views, 'A' returns an exact copy of the physical\n\
memory. In particular, in-memory Fortran order is preserved. For non-contiguous\n\
views, the data is converted to C first. order=None is the same as order='C'.");
PyDoc_STRVAR(memory_tolist_doc,
"tolist($self, /)\n--\n\
\n\
Return the data in the buffer as a list of elements.");
PyDoc_STRVAR(memory_cast_doc,
"cast($self, /, format, *, shape)\n--\n\
\n\
Cast a memoryview to a new format or shape.");
PyDoc_STRVAR(memory_toreadonly_doc,
"toreadonly($self, /)\n--\n\
\n\
Return a readonly version of the memoryview.");
static PyMethodDef memory_methods[] = {
{"release", (PyCFunction)memory_release, METH_NOARGS, memory_release_doc},
{"tobytes", (PyCFunction)(void(*)(void))memory_tobytes, METH_VARARGS|METH_KEYWORDS, memory_tobytes_doc},
MEMORYVIEW_RELEASE_METHODDEF
MEMORYVIEW_TOBYTES_METHODDEF
MEMORYVIEW_HEX_METHODDEF
{"tolist", (PyCFunction)memory_tolist, METH_NOARGS, memory_tolist_doc},
{"cast", (PyCFunction)(void(*)(void))memory_cast, METH_VARARGS|METH_KEYWORDS, memory_cast_doc},
{"toreadonly", (PyCFunction)memory_toreadonly, METH_NOARGS, memory_toreadonly_doc},
MEMORYVIEW_TOLIST_METHODDEF
MEMORYVIEW_CAST_METHODDEF
MEMORYVIEW_TOREADONLY_METHODDEF
{"__enter__", memory_enter, METH_NOARGS, NULL},
{"__exit__", memory_exit, METH_VARARGS, NULL},
{NULL, NULL}
@ -3181,7 +3182,7 @@ PyTypeObject PyMemoryView_Type = {
0, /* tp_setattro */
&memory_as_buffer, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags */
memory_doc, /* tp_doc */
memoryview__doc__, /* tp_doc */
(traverseproc)memory_traverse, /* tp_traverse */
(inquiry)memory_clear, /* tp_clear */
memory_richcompare, /* tp_richcompare */
@ -3198,5 +3199,5 @@ PyTypeObject PyMemoryView_Type = {
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
memory_new, /* tp_new */
memoryview, /* tp_new */
};