/src/cpython/Objects/clinic/memoryobject.c.h

Source
/*[clinic input]
preserve
[clinic start generated code]*/

#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
#  include "pycore_gc.h"          // PyGC_Head
#  include "pycore_runtime.h"     // _Py_ID()
#endif
#include "pycore_abstract.h"      // _PyNumber_Index()
#include "pycore_modsupport.h"    // _PyArg_UnpackKeywords()

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;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        Py_hash_t ob_hash;
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_hash = -1,
        .ob_item = { &_Py_ID(object), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"object", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "memoryview",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    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,
            /*minpos*/ 1, /*maxpos*/ 1, /*minkw*/ 0, /*varpos*/ 0, argsbuf);
    if (!fastargs) {
        goto exit;
    }
    object = fastargs[0];
    return_value = memoryview_impl(type, object);

exit:
    return return_value;
}

PyDoc_STRVAR(memoryview__from_flags__doc__,
"_from_flags($type, /, object, flags)\n"
"--\n"
"\n"
"Create a new memoryview object which references the given object.");

#define MEMORYVIEW__FROM_FLAGS_METHODDEF    \
    {"_from_flags", _PyCFunction_CAST(memoryview__from_flags), METH_FASTCALL|METH_KEYWORDS|METH_CLASS, memoryview__from_flags__doc__},

static PyObject *
memoryview__from_flags_impl(PyTypeObject *type, PyObject *object, int flags);

static PyObject *
memoryview__from_flags(PyObject *type, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 2
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        Py_hash_t ob_hash;
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_hash = -1,
        .ob_item = { &_Py_ID(object), &_Py_ID(flags), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"object", "flags", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "_from_flags",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[2];
    PyObject *object;
    int flags;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser,
            /*minpos*/ 2, /*maxpos*/ 2, /*minkw*/ 0, /*varpos*/ 0, argsbuf);
    if (!args) {
        goto exit;
    }
    object = args[0];
    flags = PyLong_AsInt(args[1]);
    if (flags == -1 && PyErr_Occurred()) {
        goto exit;
    }
    return_value = memoryview__from_flags_impl((PyTypeObject *)type, object, flags);

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(PyObject *self, PyObject *Py_UNUSED(ignored))
{
    return memoryview_release_impl((PyMemoryViewObject *)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_CAST(memoryview_cast), METH_FASTCALL|METH_KEYWORDS, memoryview_cast__doc__},

static PyObject *
memoryview_cast_impl(PyMemoryViewObject *self, PyObject *format,
                     PyObject *shape);

static PyObject *
memoryview_cast(PyObject *self, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 2
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        Py_hash_t ob_hash;
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_hash = -1,
        .ob_item = { &_Py_ID(format), &_Py_ID(shape), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"format", "shape", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "cast",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    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,
            /*minpos*/ 1, /*maxpos*/ 2, /*minkw*/ 0, /*varpos*/ 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!PyUnicode_Check(args[0])) {
        _PyArg_BadArgument("cast", "argument 'format'", "str", args[0]);
        goto exit;
    }
    format = args[0];
    if (!noptargs) {
        goto skip_optional_pos;
    }
    shape = args[1];
skip_optional_pos:
    return_value = memoryview_cast_impl((PyMemoryViewObject *)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(PyObject *self, PyObject *Py_UNUSED(ignored))
{
    return memoryview_toreadonly_impl((PyMemoryViewObject *)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(PyObject *self, PyObject *Py_UNUSED(ignored))
{
    return memoryview_tolist_impl((PyMemoryViewObject *)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_CAST(memoryview_tobytes), METH_FASTCALL|METH_KEYWORDS, memoryview_tobytes__doc__},

static PyObject *
memoryview_tobytes_impl(PyMemoryViewObject *self, const char *order);

static PyObject *
memoryview_tobytes(PyObject *self, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        Py_hash_t ob_hash;
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_hash = -1,
        .ob_item = { &_Py_ID(order), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"order", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "tobytes",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    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,
            /*minpos*/ 0, /*maxpos*/ 1, /*minkw*/ 0, /*varpos*/ 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((PyMemoryViewObject *)self, order);

exit:
    return return_value;
}

PyDoc_STRVAR(memoryview_hex__doc__,
"hex($self, /, sep=<unrepresentable>, bytes_per_sep=1)\n"
"--\n"
"\n"
"Return the data in the buffer as a str of hexadecimal numbers.\n"
"\n"
"  sep\n"
"    An optional single character or byte to separate hex bytes.\n"
"  bytes_per_sep\n"
"    How many bytes between separators.  Positive values count from the\n"
"    right, negative values count from the left.\n"
"\n"
"Example:\n"
">>> value = memoryview(b\'\\xb9\\x01\\xef\')\n"
">>> value.hex()\n"
"\'b901ef\'\n"
">>> value.hex(\':\')\n"
"\'b9:01:ef\'\n"
">>> value.hex(\':\', 2)\n"
"\'b9:01ef\'\n"
">>> value.hex(\':\', -2)\n"
"\'b901:ef\'");

#define MEMORYVIEW_HEX_METHODDEF    \
    {"hex", _PyCFunction_CAST(memoryview_hex), METH_FASTCALL|METH_KEYWORDS, memoryview_hex__doc__},

static PyObject *
memoryview_hex_impl(PyMemoryViewObject *self, PyObject *sep,
                    Py_ssize_t bytes_per_sep);

static PyObject *
memoryview_hex(PyObject *self, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 2
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        Py_hash_t ob_hash;
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_hash = -1,
        .ob_item = { &_Py_ID(sep), &_Py_ID(bytes_per_sep), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"sep", "bytes_per_sep", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "hex",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[2];
    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 0;
    PyObject *sep = NULL;
    Py_ssize_t bytes_per_sep = 1;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser,
            /*minpos*/ 0, /*maxpos*/ 2, /*minkw*/ 0, /*varpos*/ 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!noptargs) {
        goto skip_optional_pos;
    }
    if (args[0]) {
        sep = args[0];
        if (!--noptargs) {
            goto skip_optional_pos;
        }
    }
    {
        Py_ssize_t ival = -1;
        PyObject *iobj = _PyNumber_Index(args[1]);
        if (iobj != NULL) {
            ival = PyLong_AsSsize_t(iobj);
            Py_DECREF(iobj);
        }
        if (ival == -1 && PyErr_Occurred()) {
            goto exit;
        }
        bytes_per_sep = ival;
    }
skip_optional_pos:
    return_value = memoryview_hex_impl((PyMemoryViewObject *)self, sep, bytes_per_sep);

exit:
    return return_value;
}

PyDoc_STRVAR(memoryview_count__doc__,
"count($self, value, /)\n"
"--\n"
"\n"
"Count the number of occurrences of a value.");

#define MEMORYVIEW_COUNT_METHODDEF    \
    {"count", (PyCFunction)memoryview_count, METH_O, memoryview_count__doc__},

static PyObject *
memoryview_count_impl(PyMemoryViewObject *self, PyObject *value);

static PyObject *
memoryview_count(PyObject *self, PyObject *value)
{
    PyObject *return_value = NULL;

    return_value = memoryview_count_impl((PyMemoryViewObject *)self, value);

    return return_value;
}

PyDoc_STRVAR(memoryview_index__doc__,
"index($self, value, start=0, stop=sys.maxsize, /)\n"
"--\n"
"\n"
"Return the index of the first occurrence of a value.\n"
"\n"
"Raises ValueError if the value is not present.");

#define MEMORYVIEW_INDEX_METHODDEF    \
    {"index", _PyCFunction_CAST(memoryview_index), METH_FASTCALL, memoryview_index__doc__},

static PyObject *
memoryview_index_impl(PyMemoryViewObject *self, PyObject *value,
                      Py_ssize_t start, Py_ssize_t stop);

static PyObject *
memoryview_index(PyObject *self, PyObject *const *args, Py_ssize_t nargs)
{
    PyObject *return_value = NULL;
    PyObject *value;
    Py_ssize_t start = 0;
    Py_ssize_t stop = PY_SSIZE_T_MAX;

    if (!_PyArg_CheckPositional("index", nargs, 1, 3)) {
        goto exit;
    }
    value = args[0];
    if (nargs < 2) {
        goto skip_optional;
    }
    if (!_PyEval_SliceIndexNotNone(args[1], &start)) {
        goto exit;
    }
    if (nargs < 3) {
        goto skip_optional;
    }
    if (!_PyEval_SliceIndexNotNone(args[2], &stop)) {
        goto exit;
    }
skip_optional:
    return_value = memoryview_index_impl((PyMemoryViewObject *)self, value, start, stop);

exit:
    return return_value;
}
/*[clinic end generated code: output=348b6ddb98a1f412 input=a9049054013a1b77]*/

Coverage Report

Created: 2026-04-12 06:54

Line	Count	Source
1		/*[clinic input]
2		preserve
3		[clinic start generated code]*/
4
5		#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
6		# include "pycore_gc.h" // PyGC_Head
7		# include "pycore_runtime.h" // _Py_ID()
8		#endif
9		#include "pycore_abstract.h" // _PyNumber_Index()
10		#include "pycore_modsupport.h" // _PyArg_UnpackKeywords()
11
12		PyDoc_STRVAR(memoryview__doc__,
13		"memoryview(object)\n"
14		"--\n"
15		"\n"
16		"Create a new memoryview object which references the given object.");
17
18		static PyObject *
19		memoryview_impl(PyTypeObject type, PyObject object);
20
21		static PyObject *
22		memoryview(PyTypeObject type, PyObject args, PyObject *kwargs)
23	126k	{
24	126k	PyObject *return_value = NULL;
25	126k	#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
26
27	126k	#define NUM_KEYWORDS 1
28	126k	static struct {
29	126k	PyGC_Head _this_is_not_used;
30	126k	PyObject_VAR_HEAD
31	126k	Py_hash_t ob_hash;
32	126k	PyObject *ob_item[NUM_KEYWORDS];
33	126k	} _kwtuple = {
34	126k	.ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
35	126k	.ob_hash = -1,
36	126k	.ob_item = { &_Py_ID(object), },
37	126k	};
38	126k	#undef NUM_KEYWORDS
39	126k	#define KWTUPLE (&_kwtuple.ob_base.ob_base)
40
41		#else // !Py_BUILD_CORE
42		# define KWTUPLE NULL
43		#endif // !Py_BUILD_CORE
44
45	126k	static const char * const _keywords[] = {"object", NULL};
46	126k	static _PyArg_Parser _parser = {
47	126k	.keywords = _keywords,
48	126k	.fname = "memoryview",
49	126k	.kwtuple = KWTUPLE,
50	126k	};
51	126k	#undef KWTUPLE
52	126k	PyObject *argsbuf[1];
53	126k	PyObject * const *fastargs;
54	126k	Py_ssize_t nargs = PyTuple_GET_SIZE(args);
55	126k	PyObject *object;
56
57	126k	fastargs = _PyArg_UnpackKeywords(_PyTuple_CAST(args)->ob_item, nargs, kwargs, NULL, &_parser,
58	126k	/minpos/ 1, /maxpos/ 1, /minkw/ 0, /varpos/ 0, argsbuf);
59	126k	if (!fastargs) {
60	0	goto exit;
61	0	}
62	126k	object = fastargs[0];
63	126k	return_value = memoryview_impl(type, object);
64
65	126k	exit:
66	126k	return return_value;
67	126k	}
68
69		PyDoc_STRVAR(memoryview__from_flags__doc__,
70		"_from_flags($type, /, object, flags)\n"
71		"--\n"
72		"\n"
73		"Create a new memoryview object which references the given object.");
74
75		#define MEMORYVIEW__FROM_FLAGS_METHODDEF \
76		{"_from_flags", _PyCFunction_CAST(memoryview__from_flags), METH_FASTCALL\|METH_KEYWORDS\|METH_CLASS, memoryview__from_flags__doc__},
77
78		static PyObject *
79		memoryview__from_flags_impl(PyTypeObject type, PyObject object, int flags);
80
81		static PyObject *
82		memoryview__from_flags(PyObject type, PyObject const args, Py_ssize_t nargs, PyObject kwnames)
83	0	{
84	0	PyObject *return_value = NULL;
85	0	#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
86
87	0	#define NUM_KEYWORDS 2
88	0	static struct {
89	0	PyGC_Head _this_is_not_used;
90	0	PyObject_VAR_HEAD
91	0	Py_hash_t ob_hash;
92	0	PyObject *ob_item[NUM_KEYWORDS];
93	0	} _kwtuple = {
94	0	.ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
95	0	.ob_hash = -1,
96	0	.ob_item = { &_Py_ID(object), &_Py_ID(flags), },
97	0	};
98	0	#undef NUM_KEYWORDS
99	0	#define KWTUPLE (&_kwtuple.ob_base.ob_base)
100
101		#else // !Py_BUILD_CORE
102		# define KWTUPLE NULL
103		#endif // !Py_BUILD_CORE
104
105	0	static const char * const _keywords[] = {"object", "flags", NULL};
106	0	static _PyArg_Parser _parser = {
107	0	.keywords = _keywords,
108	0	.fname = "_from_flags",
109	0	.kwtuple = KWTUPLE,
110	0	};
111	0	#undef KWTUPLE
112	0	PyObject *argsbuf[2];
113	0	PyObject *object;
114	0	int flags;
115
116	0	args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser,
117	0	/minpos/ 2, /maxpos/ 2, /minkw/ 0, /varpos/ 0, argsbuf);
118	0	if (!args) {
119	0	goto exit;
120	0	}
121	0	object = args[0];
122	0	flags = PyLong_AsInt(args[1]);
123	0	if (flags == -1 && PyErr_Occurred()) {
124	0	goto exit;
125	0	}
126	0	return_value = memoryview__from_flags_impl((PyTypeObject *)type, object, flags);
127
128	0	exit:
129	0	return return_value;
130	0	}
131
132		PyDoc_STRVAR(memoryview_release__doc__,
133		"release($self, /)\n"
134		"--\n"
135		"\n"
136		"Release the underlying buffer exposed by the memoryview object.");
137
138		#define MEMORYVIEW_RELEASE_METHODDEF \
139		{"release", (PyCFunction)memoryview_release, METH_NOARGS, memoryview_release__doc__},
140
141		static PyObject *
142		memoryview_release_impl(PyMemoryViewObject *self);
143
144		static PyObject *
145		memoryview_release(PyObject self, PyObject Py_UNUSED(ignored))
146	0	{
147	0	return memoryview_release_impl((PyMemoryViewObject *)self);
148	0	}
149
150		PyDoc_STRVAR(memoryview_cast__doc__,
151		"cast($self, /, format, shape=<unrepresentable>)\n"
152		"--\n"
153		"\n"
154		"Cast a memoryview to a new format or shape.");
155
156		#define MEMORYVIEW_CAST_METHODDEF \
157		{"cast", _PyCFunction_CAST(memoryview_cast), METH_FASTCALL\|METH_KEYWORDS, memoryview_cast__doc__},
158
159		static PyObject *
160		memoryview_cast_impl(PyMemoryViewObject self, PyObject format,
161		PyObject *shape);
162
163		static PyObject *
164		memoryview_cast(PyObject self, PyObject const args, Py_ssize_t nargs, PyObject kwnames)
165	120k	{
166	120k	PyObject *return_value = NULL;
167	120k	#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
168
169	120k	#define NUM_KEYWORDS 2
170	120k	static struct {
171	120k	PyGC_Head _this_is_not_used;
172	120k	PyObject_VAR_HEAD
173	120k	Py_hash_t ob_hash;
174	120k	PyObject *ob_item[NUM_KEYWORDS];
175	120k	} _kwtuple = {
176	120k	.ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
177	120k	.ob_hash = -1,
178	120k	.ob_item = { &_Py_ID(format), &_Py_ID(shape), },
179	120k	};
180	120k	#undef NUM_KEYWORDS
181	120k	#define KWTUPLE (&_kwtuple.ob_base.ob_base)
182
183		#else // !Py_BUILD_CORE
184		# define KWTUPLE NULL
185		#endif // !Py_BUILD_CORE
186
187	120k	static const char * const _keywords[] = {"format", "shape", NULL};
188	120k	static _PyArg_Parser _parser = {
189	120k	.keywords = _keywords,
190	120k	.fname = "cast",
191	120k	.kwtuple = KWTUPLE,
192	120k	};
193	120k	#undef KWTUPLE
194	120k	PyObject *argsbuf[2];
195	120k	Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 1;
196	120k	PyObject *format;
197	120k	PyObject *shape = NULL;
198
199	120k	args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser,
200	120k	/minpos/ 1, /maxpos/ 2, /minkw/ 0, /varpos/ 0, argsbuf);
201	120k	if (!args) {
202	0	goto exit;
203	0	}
204	120k	if (!PyUnicode_Check(args[0])) {
205	0	_PyArg_BadArgument("cast", "argument 'format'", "str", args[0]);
206	0	goto exit;
207	0	}
208	120k	format = args[0];
209	120k	if (!noptargs) {
210	120k	goto skip_optional_pos;
211	120k	}
212	0	shape = args[1];
213	120k	skip_optional_pos:
214	120k	return_value = memoryview_cast_impl((PyMemoryViewObject *)self, format, shape);
215
216	120k	exit:
217	120k	return return_value;
218	120k	}
219
220		PyDoc_STRVAR(memoryview_toreadonly__doc__,
221		"toreadonly($self, /)\n"
222		"--\n"
223		"\n"
224		"Return a readonly version of the memoryview.");
225
226		#define MEMORYVIEW_TOREADONLY_METHODDEF \
227		{"toreadonly", (PyCFunction)memoryview_toreadonly, METH_NOARGS, memoryview_toreadonly__doc__},
228
229		static PyObject *
230		memoryview_toreadonly_impl(PyMemoryViewObject *self);
231
232		static PyObject *
233		memoryview_toreadonly(PyObject self, PyObject Py_UNUSED(ignored))
234	0	{
235	0	return memoryview_toreadonly_impl((PyMemoryViewObject *)self);
236	0	}
237
238		PyDoc_STRVAR(memoryview_tolist__doc__,
239		"tolist($self, /)\n"
240		"--\n"
241		"\n"
242		"Return the data in the buffer as a list of elements.");
243
244		#define MEMORYVIEW_TOLIST_METHODDEF \
245		{"tolist", (PyCFunction)memoryview_tolist, METH_NOARGS, memoryview_tolist__doc__},
246
247		static PyObject *
248		memoryview_tolist_impl(PyMemoryViewObject *self);
249
250		static PyObject *
251		memoryview_tolist(PyObject self, PyObject Py_UNUSED(ignored))
252	86.5k	{
253	86.5k	return memoryview_tolist_impl((PyMemoryViewObject *)self);
254	86.5k	}
255
256		PyDoc_STRVAR(memoryview_tobytes__doc__,
257		"tobytes($self, /, order=\'C\')\n"
258		"--\n"
259		"\n"
260		"Return the data in the buffer as a byte string.\n"
261		"\n"
262		"Order can be {\'C\', \'F\', \'A\'}. When order is \'C\' or \'F\', the data of the\n"
263		"original array is converted to C or Fortran order. For contiguous views,\n"
264		"\'A\' returns an exact copy of the physical memory. In particular, in-memory\n"
265		"Fortran order is preserved. For non-contiguous views, the data is converted\n"
266		"to C first. order=None is the same as order=\'C\'.");
267
268		#define MEMORYVIEW_TOBYTES_METHODDEF \
269		{"tobytes", _PyCFunction_CAST(memoryview_tobytes), METH_FASTCALL\|METH_KEYWORDS, memoryview_tobytes__doc__},
270
271		static PyObject *
272		memoryview_tobytes_impl(PyMemoryViewObject self, const char order);
273
274		static PyObject *
275		memoryview_tobytes(PyObject self, PyObject const args, Py_ssize_t nargs, PyObject kwnames)
276	0	{
277	0	PyObject *return_value = NULL;
278	0	#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
279
280	0	#define NUM_KEYWORDS 1
281	0	static struct {
282	0	PyGC_Head _this_is_not_used;
283	0	PyObject_VAR_HEAD
284	0	Py_hash_t ob_hash;
285	0	PyObject *ob_item[NUM_KEYWORDS];
286	0	} _kwtuple = {
287	0	.ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
288	0	.ob_hash = -1,
289	0	.ob_item = { &_Py_ID(order), },
290	0	};
291	0	#undef NUM_KEYWORDS
292	0	#define KWTUPLE (&_kwtuple.ob_base.ob_base)
293
294		#else // !Py_BUILD_CORE
295		# define KWTUPLE NULL
296		#endif // !Py_BUILD_CORE
297
298	0	static const char * const _keywords[] = {"order", NULL};
299	0	static _PyArg_Parser _parser = {
300	0	.keywords = _keywords,
301	0	.fname = "tobytes",
302	0	.kwtuple = KWTUPLE,
303	0	};
304	0	#undef KWTUPLE
305	0	PyObject *argsbuf[1];
306	0	Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 0;
307	0	const char *order = NULL;
308
309	0	args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser,
310	0	/minpos/ 0, /maxpos/ 1, /minkw/ 0, /varpos/ 0, argsbuf);
311	0	if (!args) {
312	0	goto exit;
313	0	}
314	0	if (!noptargs) {
315	0	goto skip_optional_pos;
316	0	}
317	0	if (args[0] == Py_None) {
318	0	order = NULL;
319	0	}
320	0	else if (PyUnicode_Check(args[0])) {
321	0	Py_ssize_t order_length;
322	0	order = PyUnicode_AsUTF8AndSize(args[0], &order_length);
323	0	if (order == NULL) {
324	0	goto exit;
325	0	}
326	0	if (strlen(order) != (size_t)order_length) {
327	0	PyErr_SetString(PyExc_ValueError, "embedded null character");
328	0	goto exit;
329	0	}
330	0	}
331	0	else {
332	0	_PyArg_BadArgument("tobytes", "argument 'order'", "str or None", args[0]);
333	0	goto exit;
334	0	}
335	0	skip_optional_pos:
336	0	return_value = memoryview_tobytes_impl((PyMemoryViewObject *)self, order);
337
338	0	exit:
339	0	return return_value;
340	0	}
341
342		PyDoc_STRVAR(memoryview_hex__doc__,
343		"hex($self, /, sep=<unrepresentable>, bytes_per_sep=1)\n"
344		"--\n"
345		"\n"
346		"Return the data in the buffer as a str of hexadecimal numbers.\n"
347		"\n"
348		" sep\n"
349		" An optional single character or byte to separate hex bytes.\n"
350		" bytes_per_sep\n"
351		" How many bytes between separators. Positive values count from the\n"
352		" right, negative values count from the left.\n"
353		"\n"
354		"Example:\n"
355		">>> value = memoryview(b\'\\xb9\\x01\\xef\')\n"
356		">>> value.hex()\n"
357		"\'b901ef\'\n"
358		">>> value.hex(\':\')\n"
359		"\'b9:01:ef\'\n"
360		">>> value.hex(\':\', 2)\n"
361		"\'b9:01ef\'\n"
362		">>> value.hex(\':\', -2)\n"
363		"\'b901:ef\'");
364
365		#define MEMORYVIEW_HEX_METHODDEF \
366		{"hex", _PyCFunction_CAST(memoryview_hex), METH_FASTCALL\|METH_KEYWORDS, memoryview_hex__doc__},
367
368		static PyObject *
369		memoryview_hex_impl(PyMemoryViewObject self, PyObject sep,
370		Py_ssize_t bytes_per_sep);
371
372		static PyObject *
373		memoryview_hex(PyObject self, PyObject const args, Py_ssize_t nargs, PyObject kwnames)
374	0	{
375	0	PyObject *return_value = NULL;
376	0	#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
377
378	0	#define NUM_KEYWORDS 2
379	0	static struct {
380	0	PyGC_Head _this_is_not_used;
381	0	PyObject_VAR_HEAD
382	0	Py_hash_t ob_hash;
383	0	PyObject *ob_item[NUM_KEYWORDS];
384	0	} _kwtuple = {
385	0	.ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
386	0	.ob_hash = -1,
387	0	.ob_item = { &_Py_ID(sep), &_Py_ID(bytes_per_sep), },
388	0	};
389	0	#undef NUM_KEYWORDS
390	0	#define KWTUPLE (&_kwtuple.ob_base.ob_base)
391
392		#else // !Py_BUILD_CORE
393		# define KWTUPLE NULL
394		#endif // !Py_BUILD_CORE
395
396	0	static const char * const _keywords[] = {"sep", "bytes_per_sep", NULL};
397	0	static _PyArg_Parser _parser = {
398	0	.keywords = _keywords,
399	0	.fname = "hex",
400	0	.kwtuple = KWTUPLE,
401	0	};
402	0	#undef KWTUPLE
403	0	PyObject *argsbuf[2];
404	0	Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 0;
405	0	PyObject *sep = NULL;
406	0	Py_ssize_t bytes_per_sep = 1;
407
408	0	args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser,
409	0	/minpos/ 0, /maxpos/ 2, /minkw/ 0, /varpos/ 0, argsbuf);
410	0	if (!args) {
411	0	goto exit;
412	0	}
413	0	if (!noptargs) {
414	0	goto skip_optional_pos;
415	0	}
416	0	if (args[0]) {
417	0	sep = args[0];
418	0	if (!--noptargs) {
419	0	goto skip_optional_pos;
420	0	}
421	0	}
422	0	{
423	0	Py_ssize_t ival = -1;
424	0	PyObject *iobj = _PyNumber_Index(args[1]);
425	0	if (iobj != NULL) {
426	0	ival = PyLong_AsSsize_t(iobj);
427	0	Py_DECREF(iobj);
428	0	}
429	0	if (ival == -1 && PyErr_Occurred()) {
430	0	goto exit;
431	0	}
432	0	bytes_per_sep = ival;
433	0	}
434	0	skip_optional_pos:
435	0	return_value = memoryview_hex_impl((PyMemoryViewObject *)self, sep, bytes_per_sep);
436
437	0	exit:
438	0	return return_value;
439	0	}
440
441		PyDoc_STRVAR(memoryview_count__doc__,
442		"count($self, value, /)\n"
443		"--\n"
444		"\n"
445		"Count the number of occurrences of a value.");
446
447		#define MEMORYVIEW_COUNT_METHODDEF \
448		{"count", (PyCFunction)memoryview_count, METH_O, memoryview_count__doc__},
449
450		static PyObject *
451		memoryview_count_impl(PyMemoryViewObject self, PyObject value);
452
453		static PyObject *
454		memoryview_count(PyObject self, PyObject value)
455	0	{
456	0	PyObject *return_value = NULL;
457
458	0	return_value = memoryview_count_impl((PyMemoryViewObject *)self, value);
459
460	0	return return_value;
461	0	}
462
463		PyDoc_STRVAR(memoryview_index__doc__,
464		"index($self, value, start=0, stop=sys.maxsize, /)\n"
465		"--\n"
466		"\n"
467		"Return the index of the first occurrence of a value.\n"
468		"\n"
469		"Raises ValueError if the value is not present.");
470
471		#define MEMORYVIEW_INDEX_METHODDEF \
472		{"index", _PyCFunction_CAST(memoryview_index), METH_FASTCALL, memoryview_index__doc__},
473
474		static PyObject *
475		memoryview_index_impl(PyMemoryViewObject self, PyObject value,
476		Py_ssize_t start, Py_ssize_t stop);
477
478		static PyObject *
479		memoryview_index(PyObject self, PyObject const *args, Py_ssize_t nargs)
480	0	{
481	0	PyObject *return_value = NULL;
482	0	PyObject *value;
483	0	Py_ssize_t start = 0;
484	0	Py_ssize_t stop = PY_SSIZE_T_MAX;
485
486	0	if (!_PyArg_CheckPositional("index", nargs, 1, 3)) {
487	0	goto exit;
488	0	}
489	0	value = args[0];
490	0	if (nargs < 2) {
491	0	goto skip_optional;
492	0	}
493	0	if (!_PyEval_SliceIndexNotNone(args[1], &start)) {
494	0	goto exit;
495	0	}
496	0	if (nargs < 3) {
497	0	goto skip_optional;
498	0	}
499	0	if (!_PyEval_SliceIndexNotNone(args[2], &stop)) {
500	0	goto exit;
501	0	}
502	0	skip_optional:
503	0	return_value = memoryview_index_impl((PyMemoryViewObject *)self, value, start, stop);
504
505	0	exit:
506	0	return return_value;
507	0	}
508		/[clinic end generated code: output=348b6ddb98a1f412 input=a9049054013a1b77]/