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Convert CFieldObject tp_members to tp_getset, since there is no 

structmember typecode for Py_ssize_t fields.  This should fix some of
the errors on the PPC64 debian machine (64-bit, big endian).

Assigning to readonly fields now raises AttributeError instead of
TypeError, so the testcase has to be changed as well.
This commit is contained in:
Thomas Heller 2006-06-06 11:34:33 +00:00
parent dd2a6bf14f
commit ecc3e67b98
2 changed files with 29 additions and 15 deletions
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8
Lib/ctypes/test/test_structures.py
View File

@ -138,8 +138,8 @@ class StructureTestCase(unittest.TestCase):
self.failUnlessEqual(X.y.size, sizeof(c_char))
# readonly
self.assertRaises(TypeError, setattr, X.x, "offset", 92)
self.assertRaises(TypeError, setattr, X.x, "size", 92)
self.assertRaises(AttributeError, setattr, X.x, "offset", 92)
self.assertRaises(AttributeError, setattr, X.x, "size", 92)
class X(Union):
_fields_ = [("x", c_int),
@ -152,8 +152,8 @@ class StructureTestCase(unittest.TestCase):
self.failUnlessEqual(X.y.size, sizeof(c_char))
# readonly
self.assertRaises(TypeError, setattr, X.x, "offset", 92)
self.assertRaises(TypeError, setattr, X.x, "size", 92)
self.assertRaises(AttributeError, setattr, X.x, "offset", 92)
self.assertRaises(AttributeError, setattr, X.x, "size", 92)
# XXX Should we check nested data types also?
# offset is always relative to the class...

36
Modules/_ctypes/cfield.c
View File

@ -1,5 +1,4 @@
#include "Python.h"
#include "structmember.h"
#include <ffi.h>
#ifdef MS_WIN32
@ -208,14 +207,29 @@ CField_get(CFieldObject *self, PyObject *inst, PyTypeObject *type)
self->index, self->size, src->b_ptr + self->offset);
}
static PyMemberDef CField_members[] = {
{ "offset", T_UINT,
offsetof(CFieldObject, offset), READONLY,
"offset in bytes of this field"},
{ "size", T_UINT,
offsetof(CFieldObject, size), READONLY,
"size in bytes of this field"},
{ NULL },
static PyObject *
CField_get_offset(PyObject *self, void *data)
{
#if (PY_VERSION_HEX < 0x02050000)
return PyInt_FromLong(((CFieldObject *)self)->offset);
#else
return PyInt_FromSsize_t(((CFieldObject *)self)->offset);
#endif
}
static PyObject *
CField_get_size(PyObject *self, void *data)
{
#if (PY_VERSION_HEX < 0x02050000)
return PyInt_FromLong(((CFieldObject *)self)->size);
#else
return PyInt_FromSsize_t(((CFieldObject *)self)->size);
#endif
}
static PyGetSetDef CField_getset[] = {
{ "offset", CField_get_offset, NULL, "offset in bytes of this field" },
{ "size", CField_get_offset, NULL, "size in bytes of this field" },
};
static int
@ -298,8 +312,8 @@ PyTypeObject CField_Type = {
0, /* tp_iter */
0, /* tp_iternext */
0, /* tp_methods */
CField_members, /* tp_members */
0, /* tp_getset */
0, /* tp_members */
CField_getset, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
(descrgetfunc)CField_get, /* tp_descr_get */