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cpython/Modules/_testcapi/structmember.c at 3.15 · python/cpython · GitHub
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#include
"parts.h"
#include
<stddef.h>
// for offsetof()
// This defines two classes that contain all the simple member types, one
// using "new" Py_-prefixed API, and the other using "old" <structmember.h>.
// They should behave identically in Python.
typedef
struct
{
char
bool_member
;
char
byte_member
;
unsigned
char
ubyte_member
;
short
short_member
;
unsigned short
ushort_member
;
int
int_member
;
unsigned
int
uint_member
;
long
long_member
;
unsigned long
ulong_member
;
Py_ssize_t
pyssizet_member
;
float
float_member
;
double
double_member
;
char
inplace_member
[
6
];
long long
longlong_member
;
unsigned long long
ulonglong_member
;
char
char_member
;
}
all_structmembers
;
typedef
struct
{
PyObject_HEAD
all_structmembers
structmembers
;
}
test_structmembers
;
static
struct
PyMemberDef
test_members_newapi
[]
=
{
{
"T_BOOL"
,
Py_T_BOOL
, offsetof(
test_structmembers
,
structmembers
.
bool_member
),
0
,
NULL
},
{
"T_BYTE"
,
Py_T_BYTE
, offsetof(
test_structmembers
,
structmembers
.
byte_member
),
0
,
NULL
},
{
"T_UBYTE"
,
Py_T_UBYTE
, offsetof(
test_structmembers
,
structmembers
.
ubyte_member
),
0
,
NULL
},
{
"T_SHORT"
,
Py_T_SHORT
, offsetof(
test_structmembers
,
structmembers
.
short_member
),
0
,
NULL
},
{
"T_USHORT"
,
Py_T_USHORT
, offsetof(
test_structmembers
,
structmembers
.
ushort_member
),
0
,
NULL
},
{
"T_INT"
,
Py_T_INT
, offsetof(
test_structmembers
,
structmembers
.
int_member
),
0
,
NULL
},
{
"T_UINT"
,
Py_T_UINT
, offsetof(
test_structmembers
,
structmembers
.
uint_member
),
0
,
NULL
},
{
"T_LONG"
,
Py_T_LONG
, offsetof(
test_structmembers
,
structmembers
.
long_member
),
0
,
NULL
},
{
"T_ULONG"
,
Py_T_ULONG
, offsetof(
test_structmembers
,
structmembers
.
ulong_member
),
0
,
NULL
},
{
"T_PYSSIZET"
,
Py_T_PYSSIZET
, offsetof(
test_structmembers
,
structmembers
.
pyssizet_member
),
0
,
NULL
},
{
"T_FLOAT"
,
Py_T_FLOAT
, offsetof(
test_structmembers
,
structmembers
.
float_member
),
0
,
NULL
},
{
"T_DOUBLE"
,
Py_T_DOUBLE
, offsetof(
test_structmembers
,
structmembers
.
double_member
),
0
,
NULL
},
{
"T_STRING_INPLACE"
,
Py_T_STRING_INPLACE
, offsetof(
test_structmembers
,
structmembers
.
inplace_member
),
0
,
NULL
},
{
"T_LONGLONG"
,
Py_T_LONGLONG
, offsetof(
test_structmembers
,
structmembers
.
longlong_member
),
0
,
NULL
},
{
"T_ULONGLONG"
,
Py_T_ULONGLONG
, offsetof(
test_structmembers
,
structmembers
.
ulonglong_member
),
0
,
NULL
},
{
"T_CHAR"
,
Py_T_CHAR
, offsetof(
test_structmembers
,
structmembers
.
char_member
),
0
,
NULL
},
{
NULL
}
};
static
PyObject
*
test_structmembers_new
(
PyTypeObject
*
type
,
PyObject
*
args
,
PyObject
*
kwargs
)
{
static
char
*
keywords
[]
=
{
"T_BOOL"
,
"T_BYTE"
,
"T_UBYTE"
,
"T_SHORT"
,
"T_USHORT"
,
"T_INT"
,
"T_UINT"
,
"T_LONG"
,
"T_ULONG"
,
"T_PYSSIZET"
,
"T_FLOAT"
,
"T_DOUBLE"
,
"T_STRING_INPLACE"
,
"T_LONGLONG"
,
"T_ULONGLONG"
,
"T_CHAR"
,
NULL
};
static
const
char
fmt
[]
=
"|bbBhHiIlknfds#LKc"
;
test_structmembers
*
ob
;
const
char
*
s
=
NULL
;
Py_ssize_t
string_len
=
0
;
ob
=
PyObject_New
(
test_structmembers
,
type
);
if
(
ob
==
NULL
) {
return
NULL
;
}
memset
(
&
ob
->
structmembers
,
0
,
sizeof
(
all_structmembers
));
if
(!
PyArg_ParseTupleAndKeywords
(
args
,
kwargs
,
fmt
,
keywords
,
&
ob
->
structmembers
.
bool_member
,
&
ob
->
structmembers
.
byte_member
,
&
ob
->
structmembers
.
ubyte_member
,
&
ob
->
structmembers
.
short_member
,
&
ob
->
structmembers
.
ushort_member
,
&
ob
->
structmembers
.
int_member
,
&
ob
->
structmembers
.
uint_member
,
&
ob
->
structmembers
.
long_member
,
&
ob
->
structmembers
.
ulong_member
,
&
ob
->
structmembers
.
pyssizet_member
,
&
ob
->
structmembers
.
float_member
,
&
ob
->
structmembers
.
double_member
,
&
s
,
&
string_len
,
&
ob
->
structmembers
.
longlong_member
,
&
ob
->
structmembers
.
ulonglong_member
,
&
ob
->
structmembers
.
char_member
))
{
Py_DECREF
(
ob
);
return
NULL
;
}
if
(
s
!=
NULL
) {
if
(
string_len
>
5
) {
Py_DECREF
(
ob
);
PyErr_SetString
(
PyExc_ValueError
,
"string too long"
);
return
NULL
;
}
strcpy
(
ob
->
structmembers
.
inplace_member
,
s
);
}
else
{
strcpy
(
ob
->
structmembers
.
inplace_member
,
""
);
}
return
(
PyObject
*
)
ob
;
}
static
PyType_Slot
test_structmembers_slots
[]
=
{
{
Py_tp_new
,
test_structmembers_new
},
{
Py_tp_members
,
test_members_newapi
},
{
0
},
};
static
PyType_Spec
test_structmembers_spec
=
{
.
name
=
"_testcapi._test_structmembersType_NewAPI"
,
.
flags
=
Py_TPFLAGS_DEFAULT
,
.
basicsize
=
sizeof
(
test_structmembers
),
.
slots
=
test_structmembers_slots
,
};
#include
<structmember.h>
static
struct
PyMemberDef
test_members
[]
=
{
{
"T_BOOL"
,
T_BOOL
, offsetof(
test_structmembers
,
structmembers
.
bool_member
),
0
,
NULL
},
{
"T_BYTE"
,
T_BYTE
, offsetof(
test_structmembers
,
structmembers
.
byte_member
),
0
,
NULL
},
{
"T_UBYTE"
,
T_UBYTE
, offsetof(
test_structmembers
,
structmembers
.
ubyte_member
),
0
,
NULL
},
{
"T_SHORT"
,
T_SHORT
, offsetof(
test_structmembers
,
structmembers
.
short_member
),
0
,
NULL
},
{
"T_USHORT"
,
T_USHORT
, offsetof(
test_structmembers
,
structmembers
.
ushort_member
),
0
,
NULL
},
{
"T_INT"
,
T_INT
, offsetof(
test_structmembers
,
structmembers
.
int_member
),
0
,
NULL
},
{
"T_UINT"
,
T_UINT
, offsetof(
test_structmembers
,
structmembers
.
uint_member
),
0
,
NULL
},
{
"T_LONG"
,
T_LONG
, offsetof(
test_structmembers
,
structmembers
.
long_member
),
0
,
NULL
},
{
"T_ULONG"
,
T_ULONG
, offsetof(
test_structmembers
,
structmembers
.
ulong_member
),
0
,
NULL
},
{
"T_PYSSIZET"
,
T_PYSSIZET
, offsetof(
test_structmembers
,
structmembers
.
pyssizet_member
),
0
,
NULL
},
{
"T_FLOAT"
,
T_FLOAT
, offsetof(
test_structmembers
,
structmembers
.
float_member
),
0
,
NULL
},
{
"T_DOUBLE"
,
T_DOUBLE
, offsetof(
test_structmembers
,
structmembers
.
double_member
),
0
,
NULL
},
{
"T_STRING_INPLACE"
,
T_STRING_INPLACE
, offsetof(
test_structmembers
,
structmembers
.
inplace_member
),
0
,
NULL
},
{
"T_LONGLONG"
,
T_LONGLONG
, offsetof(
test_structmembers
,
structmembers
.
longlong_member
),
0
,
NULL
},
{
"T_ULONGLONG"
,
T_ULONGLONG
, offsetof(
test_structmembers
,
structmembers
.
ulonglong_member
),
0
,
NULL
},
{
"T_CHAR"
,
T_CHAR
, offsetof(
test_structmembers
,
structmembers
.
char_member
),
0
,
NULL
},
{
NULL
}
};
static
void
test_structmembers_free
(
PyObject
*
ob
)
{
PyObject_Free
(
ob
);
}
/* Designated initializers would work too, but this does test the *old* API */
static
PyTypeObject
test_structmembersType_OldAPI
=
{
PyVarObject_HEAD_INIT
(
NULL
,
0
)
"test_structmembersType_OldAPI"
,
sizeof
(
test_structmembers
),
/* tp_basicsize */
0
,
/* tp_itemsize */
test_structmembers_free
,
/* destructor tp_dealloc */
0
,
/* tp_vectorcall_offset */
0
,
/* tp_getattr */
0
,
/* tp_setattr */
0
,
/* tp_as_async */
0
,
/* tp_repr */
0
,
/* tp_as_number */
0
,
/* tp_as_sequence */
0
,
/* tp_as_mapping */
0
,
/* tp_hash */
0
,
/* tp_call */
0
,
/* tp_str */
PyObject_GenericGetAttr
,
/* tp_getattro */
PyObject_GenericSetAttr
,
/* tp_setattro */
0
,
/* tp_as_buffer */
0
,
/* tp_flags */
"Type containing all structmember types"
,
0
,
/* traverseproc tp_traverse */
0
,
/* tp_clear */
0
,
/* tp_richcompare */
0
,
/* tp_weaklistoffset */
0
,
/* tp_iter */
0
,
/* tp_iternext */
0
,
/* tp_methods */
test_members
,
/* tp_members */
0
,
0
,
0
,
0
,
0
,
0
,
0
,
0
,
test_structmembers_new
,
/* tp_new */
};
int
_PyTestCapi_Init_Structmember
(
PyObject
*
m
)
{
int
res
;
res
=
PyType_Ready
(
&
test_structmembersType_OldAPI
);
if
(
res
<
0
) {
return
-1
;
}
res
=
PyModule_AddObjectRef
(
m
,
"_test_structmembersType_OldAPI"
,
(
PyObject
*
)
&
test_structmembersType_OldAPI
);
if
(
res
<
0
) {
return
-1
;
}
PyObject
*
test_structmembersType_NewAPI
=
PyType_FromModuleAndSpec
(
m
,
&
test_structmembers_spec
,
NULL
);
if
(!
test_structmembersType_NewAPI
) {
return
-1
;
}
res
=
PyModule_AddType
(
m
, (
PyTypeObject
*
)
test_structmembersType_NewAPI
);
Py_DECREF
(
test_structmembersType_NewAPI
);
if
(
res
<
0
) {
return
-1
;
}
return
0
;
}
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