Remove the simple slicing API. All slicing is now done with slice objects.

3 files changed, 7 insertions, 152 deletions

diff --git a/Modules/_ctypes/_ctypes.c b/Modules/_ctypes/_ctypes.c
index ced02c9..75792ad 100644
--- a/Modules/_ctypes/_ctypes.c
+++ b/Modules/_ctypes/_ctypes.c
@@ -3702,52 +3702,6 @@ Array_item(PyObject *_self, Py_ssize_t index)
 }
 
 static PyObject *
-Array_slice(PyObject *_self, Py_ssize_t ilow, Py_ssize_t ihigh)
-{
-	CDataObject *self = (CDataObject *)_self;
-	StgDictObject *stgdict, *itemdict;
-	PyObject *proto;
-	PyListObject *np;
-	Py_ssize_t i, len;
-
-	if (ilow < 0)
-		ilow = 0;
-	else if (ilow > self->b_length)
-		ilow = self->b_length;
-	if (ihigh < ilow)
-		ihigh = ilow;
-	else if (ihigh > self->b_length)
-		ihigh = self->b_length;
-	len = ihigh - ilow;
-
-	stgdict = PyObject_stgdict((PyObject *)self);
-	assert(stgdict); /* Cannot be NULL for array object instances */
-	proto = stgdict->proto;
-	itemdict = PyType_stgdict(proto);
-	assert(itemdict); /* proto is the item type of the array, a ctypes
-			     type, so this cannot be NULL */
-	if (itemdict->getfunc == getentry("c")->getfunc) {
-		char *ptr = (char *)self->b_ptr;
-		return PyString_FromStringAndSize(ptr + ilow, len);
-#ifdef CTYPES_UNICODE
-	} else if (itemdict->getfunc == getentry("u")->getfunc) {
-		wchar_t *ptr = (wchar_t *)self->b_ptr;
-		return PyUnicode_FromWideChar(ptr + ilow, len);
-#endif
-	}
-
-	np = (PyListObject *) PyList_New(len);
-	if (np == NULL)
-		return NULL;
-
-	for (i = 0; i < len; i++) {
-		PyObject *v = Array_item(_self, i+ilow);
-		PyList_SET_ITEM(np, i, v);
-	}
-	return (PyObject *)np;
-}
-
-static PyObject *
 Array_subscript(PyObject *_self, PyObject *item)
 {
 	CDataObject *self = (CDataObject *)_self;
@@ -3989,9 +3943,9 @@ static PySequenceMethods Array_as_sequence = {
 	0,					/* sq_concat; */
 	0,					/* sq_repeat; */
 	Array_item,				/* sq_item; */
-	Array_slice,				/* sq_slice; */
+	0,					/* sq_slice; */
 	Array_ass_item,				/* sq_ass_item; */
-	Array_ass_slice,			/* sq_ass_slice; */
+	0,					/* sq_ass_slice; */
 	0,					/* sq_contains; */
 	
 	0,					/* sq_inplace_concat; */
@@ -4427,48 +4381,6 @@ Pointer_new(PyTypeObject *type, PyObject *args, PyObject *kw)
 }
 
 static PyObject *
-Pointer_slice(PyObject *_self, Py_ssize_t ilow, Py_ssize_t ihigh)
-{
-	CDataObject *self = (CDataObject *)_self;
-	PyListObject *np;
-	StgDictObject *stgdict, *itemdict;
-	PyObject *proto;
-	Py_ssize_t i, len;
-
-	if (ilow < 0)
-		ilow = 0;
-	if (ihigh < ilow)
-		ihigh = ilow;
-	len = ihigh - ilow;
-
-	stgdict = PyObject_stgdict((PyObject *)self);
-	assert(stgdict); /* Cannot be NULL fr pointer instances */
-	proto = stgdict->proto;
-	assert(proto);
-	itemdict = PyType_stgdict(proto);
-	assert(itemdict);
-	if (itemdict->getfunc == getentry("c")->getfunc) {
-		char *ptr = *(char **)self->b_ptr;
-		return PyString_FromStringAndSize(ptr + ilow, len);
-#ifdef CTYPES_UNICODE
-	} else if (itemdict->getfunc == getentry("u")->getfunc) {
-		wchar_t *ptr = *(wchar_t **)self->b_ptr;
-		return PyUnicode_FromWideChar(ptr + ilow, len);
-#endif
-	}
-
-	np = (PyListObject *) PyList_New(len);
-	if (np == NULL)
-		return NULL;
-
-	for (i = 0; i < len; i++) {
-		PyObject *v = Pointer_item(_self, i+ilow);
-		PyList_SET_ITEM(np, i, v);
-	}
-	return (PyObject *)np;
-}
-
-static PyObject *
 Pointer_subscript(PyObject *_self, PyObject *item)
 {
 	CDataObject *self = (CDataObject *)_self;
@@ -4606,7 +4518,7 @@ static PySequenceMethods Pointer_as_sequence = {
 	0,					/* binaryfunc sq_concat; */
 	0,					/* intargfunc sq_repeat; */
 	Pointer_item,				/* intargfunc sq_item; */
-	Pointer_slice,				/* intintargfunc sq_slice; */
+	0,					/* intintargfunc sq_slice; */
 	Pointer_ass_item,			/* intobjargproc sq_ass_item; */
 	0,					/* intintobjargproc sq_ass_slice; */
 	0,					/* objobjproc sq_contains; */
diff --git a/Modules/arraymodule.c b/Modules/arraymodule.c
index e79847f..afe4587 100644
--- a/Modules/arraymodule.c
+++ b/Modules/arraymodule.c
@@ -1835,9 +1835,9 @@ static PySequenceMethods array_as_sequence = {
 	(binaryfunc)array_concat,               /*sq_concat*/
 	(ssizeargfunc)array_repeat,		/*sq_repeat*/
 	(ssizeargfunc)array_item,		        /*sq_item*/
-	(ssizessizeargfunc)array_slice,		/*sq_slice*/
+	0,					/*sq_slice*/
 	(ssizeobjargproc)array_ass_item,		/*sq_ass_item*/
-	(ssizessizeobjargproc)array_ass_slice,	/*sq_ass_slice*/
+	0,					/*sq_ass_slice*/
 	(objobjproc)array_contains,		/*sq_contains*/
 	(binaryfunc)array_inplace_concat,	/*sq_inplace_concat*/
 	(ssizeargfunc)array_inplace_repeat	/*sq_inplace_repeat*/
diff --git a/Modules/mmapmodule.c b/Modules/mmapmodule.c
index f3727e3..77f64bc 100644
--- a/Modules/mmapmodule.c
+++ b/Modules/mmapmodule.c
@@ -642,24 +642,6 @@ mmap_item(mmap_object *self, Py_ssize_t i)
 }
 
 static PyObject *
-mmap_slice(mmap_object *self, Py_ssize_t ilow, Py_ssize_t ihigh)
-{
-	CHECK_VALID(NULL);
-	if (ilow < 0)
-		ilow = 0;
-	else if ((size_t)ilow > self->size)
-		ilow = self->size;
-	if (ihigh < 0)
-		ihigh = 0;
-	if (ihigh < ilow)
-		ihigh = ilow;
-	else if ((size_t)ihigh > self->size)
-		ihigh = self->size;
-
-	return PyBytes_FromStringAndSize(self->data + ilow, ihigh-ilow);
-}
-
-static PyObject *
 mmap_subscript(mmap_object *self, PyObject *item)
 {
 	CHECK_VALID(NULL);
@@ -732,45 +714,6 @@ mmap_repeat(mmap_object *self, Py_ssize_t n)
 }
 
 static int
-mmap_ass_slice(mmap_object *self, Py_ssize_t ilow, Py_ssize_t ihigh, PyObject *v)
-{
-	const char *buf;
-
-	CHECK_VALID(-1);
-	if (ilow < 0)
-		ilow = 0;
-	else if ((size_t)ilow > self->size)
-		ilow = self->size;
-	if (ihigh < 0)
-		ihigh = 0;
-	if (ihigh < ilow)
-		ihigh = ilow;
-	else if ((size_t)ihigh > self->size)
-		ihigh = self->size;
-
-	if (v == NULL) {
-		PyErr_SetString(PyExc_TypeError,
-				"mmap object doesn't support slice deletion");
-		return -1;
-	}
-	if (! (PyBytes_Check(v)) ) {
-		PyErr_SetString(PyExc_IndexError,
-				"mmap slice assignment must be bytes");
-		return -1;
-	}
-	if (PyBytes_Size(v) != (ihigh - ilow)) {
-		PyErr_SetString(PyExc_IndexError,
-				"mmap slice assignment is wrong size");
-		return -1;
-	}
-	if (!is_writeable(self))
-		return -1;
-	buf = PyBytes_AsString(v);
-	memcpy(self->data + ilow, buf, ihigh-ilow);
-	return 0;
-}
-
-static int
 mmap_ass_item(mmap_object *self, Py_ssize_t i, PyObject *v)
 {
 	const char *buf;
@@ -892,9 +835,9 @@ static PySequenceMethods mmap_as_sequence = {
 	(binaryfunc)mmap_concat,	       /*sq_concat*/
 	(ssizeargfunc)mmap_repeat,	       /*sq_repeat*/
 	(ssizeargfunc)mmap_item,		       /*sq_item*/
-	(ssizessizeargfunc)mmap_slice,	       /*sq_slice*/
+	0,				      /*sq_slice*/
 	(ssizeobjargproc)mmap_ass_item,	       /*sq_ass_item*/
-	(ssizessizeobjargproc)mmap_ass_slice,      /*sq_ass_slice*/
+	0,				      /*sq_ass_slice*/
 };
 
 static PyMappingMethods mmap_as_mapping = {