1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
|
from rpython.rtyper.lltypesystem import rffi
from pypy.module.cpyext.pyobject import make_ref, from_ref
from pypy.module.cpyext.api import generic_cpy_call
from pypy.module.cpyext.typeobject import PyTypeObjectPtr
from pypy.module.cpyext.test.test_api import BaseApiTest
from pypy.module.cpyext.test.test_cpyext import AppTestCpythonExtensionBase
class TestAppLevelObject(BaseApiTest):
def test_nb_add_from_python(self, space, api):
w_date = space.appexec([], """():
class DateType(object):
def __add__(self, other):
return 'sum!'
return DateType()
""")
w_datetype = space.type(w_date)
py_date = make_ref(space, w_date)
py_datetype = rffi.cast(PyTypeObjectPtr, make_ref(space, w_datetype))
assert py_datetype.c_tp_as_number
assert py_datetype.c_tp_as_number.c_nb_add
w_obj = generic_cpy_call(space, py_datetype.c_tp_as_number.c_nb_add,
py_date, py_date)
assert space.text_w(w_obj) == 'sum!'
def test_tp_new_from_python(self, space, api):
w_date = space.appexec([], """():
class Date(object):
def __new__(cls, year, month, day):
self = object.__new__(cls)
self.year = year
self.month = month
self.day = day
return self
return Date
""")
py_datetype = rffi.cast(PyTypeObjectPtr, make_ref(space, w_date))
one = space.newint(1)
arg = space.newtuple([one, one, one])
# call w_date.__new__
w_obj = space.call_function(w_date, one, one, one)
w_year = space.getattr(w_obj, space.newtext('year'))
assert space.int_w(w_year) == 1
w_obj = generic_cpy_call(space, py_datetype.c_tp_new, py_datetype,
arg, space.newdict({}))
w_year = space.getattr(w_obj, space.newtext('year'))
assert space.int_w(w_year) == 1
def test_descr_slots(self, space, api):
w_descr = space.appexec([], """():
class Descr(object):
def __get__(self, obj, type):
return 42 + (obj is None)
def __set__(self, obj, value):
obj.append('set')
def __delete__(self, obj):
obj.append('del')
return Descr()
""")
w_descrtype = space.type(w_descr)
py_descr = make_ref(space, w_descr)
py_descrtype = rffi.cast(PyTypeObjectPtr, make_ref(space, w_descrtype))
w_obj = space.newlist([])
py_obj = make_ref(space, w_obj)
w_res = generic_cpy_call(space, py_descrtype.c_tp_descr_get,
py_descr, py_obj, py_obj)
assert space.int_w(w_res) == 42
assert generic_cpy_call(
space, py_descrtype.c_tp_descr_set,
py_descr, py_obj, make_ref(space, space.w_None)) == 0
assert generic_cpy_call(
space, py_descrtype.c_tp_descr_set,
py_descr, py_obj, None) == 0
assert space.eq_w(w_obj, space.wrap(['set', 'del']))
#
# unbound __get__(self, NULL, type)
w_res = generic_cpy_call(space, py_descrtype.c_tp_descr_get,
py_descr, None, space.w_int)
assert space.int_w(w_res) == 43
class AppTestUserSlots(AppTestCpythonExtensionBase):
def test_tp_hash_from_python(self):
# to see that the functions are being used,
# run pytest with -s
module = self.import_extension('foo', [
("use_hash", "METH_O",
'''
long hash = args->ob_type->tp_hash(args);
return PyLong_FromLong(hash);
''')])
class C(object):
def __hash__(self):
return -23
c = C()
# uses the userslot slot_tp_hash
ret = module.use_hash(C())
assert hash(c) == ret
# uses the slotdef renamed cpyext_tp_hash_int
ret = module.use_hash(3)
assert hash(3) == ret
def test_tp_str(self):
module = self.import_extension('foo', [
("tp_str", "METH_VARARGS",
'''
PyTypeObject *type = (PyTypeObject *)PyTuple_GET_ITEM(args, 0);
PyObject *obj = PyTuple_GET_ITEM(args, 1);
if (!type->tp_str)
{
PyErr_SetString(PyExc_ValueError, "no tp_str");
return NULL;
}
return type->tp_str(obj);
'''
)
])
class C:
def __str__(self):
return "text"
assert module.tp_str(type(C()), C()) == "text"
class D(int):
def __str__(self):
return "more text"
assert module.tp_str(int, D(42)) == "42"
class A(object):
pass
s = module.tp_str(type(A()), A())
assert 'A object' in s
def test_tp_deallocate(self):
module = self.import_extension('foo', [
("get_cnt", "METH_NOARGS",
'''
return PyLong_FromLong(foocnt);
'''),
("get__timestamp", "METH_NOARGS",
'''
PyObject * one = PyLong_FromLong(1);
PyObject * a = PyTuple_Pack(3, one, one, one);
PyObject * k = NULL;
obj = _Timestamp.tp_new(&_Timestamp, a, k);
Py_DECREF(one);
return obj;
'''),
("get_timestamp", "METH_NOARGS",
'''
PyObject * one = PyLong_FromLong(1);
PyObject * a = PyTuple_Pack(3, one, one, one);
PyObject * k = NULL;
obj = Timestamp.tp_new(&Timestamp, a, k);
Py_DECREF(one);
return obj;
'''),
], prologue='''
static int foocnt = 0;
static PyTypeObject* datetime_cls = NULL;
static PyObject * obj = NULL;
static PyObject*
_timestamp_new(PyTypeObject* t, PyObject* a, PyObject* k)
{
foocnt ++;
return datetime_cls->tp_new(t, a, k);
}
static PyObject*
timestamp_new(PyTypeObject* t, PyObject* a, PyObject* k)
{
return datetime_cls->tp_new(t, a, k);
}
static void
_timestamp_dealloc(PyObject *op)
{
foocnt --;
datetime_cls->tp_dealloc(op);
}
static PyTypeObject _Timestamp = {
PyVarObject_HEAD_INIT(NULL, 0)
"foo._Timestamp", /* tp_name*/
0, /* tp_basicsize*/
0, /* tp_itemsize */
_timestamp_dealloc /* tp_dealloc */
};
static PyTypeObject Timestamp = {
PyVarObject_HEAD_INIT(NULL, 0)
"foo.Timestamp", /* tp_name*/
0, /* tp_basicsize*/
0 /* tp_itemsize */
};
PyObject * mod1;
PyObject * dt;
''', more_init='''
mod1 = PyImport_ImportModule("datetime");
if (mod1 == NULL) INITERROR;
dt = PyUnicode_FromString("datetime");
datetime_cls = (PyTypeObject*)PyObject_GetAttr(mod1, dt);
if (datetime_cls == NULL) INITERROR;
_Timestamp.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE;
_Timestamp.tp_base = datetime_cls;
_Timestamp.tp_new = _timestamp_new;
Py_DECREF(mod1);
Py_DECREF(dt);
if (PyType_Ready(&_Timestamp) < 0) INITERROR;
Timestamp.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE;
Timestamp.tp_base = &_Timestamp;
Timestamp.tp_new = timestamp_new;
Timestamp.tp_dealloc = datetime_cls->tp_dealloc;
if (PyType_Ready(&Timestamp) < 0) INITERROR;
''')
# _Timestamp has __new__, __del__ and
# inherits from datetime.datetime
# Timestamp has __new__, default __del__ (subtype_dealloc) and
# inherits from _Timestamp
import gc, sys
cnt = module.get_cnt()
assert cnt == 0
obj = module.get__timestamp() #_Timestamp
cnt = module.get_cnt()
assert cnt == 1
assert obj.year == 1
del obj
self.debug_collect()
cnt = module.get_cnt()
assert cnt == 0
obj = module.get_timestamp() #Timestamp
cnt = module.get_cnt()
assert cnt == 0
assert obj.year == 1
# XXX calling Timestamp.tp_dealloc which is subtype_dealloc
# causes infinite recursion
del obj
self.debug_collect()
cnt = module.get_cnt()
assert cnt == 0
def test_rpow_cpyext(self):
module = self.import_module("pow_mod", filename="gh5207")
assert hasattr(module, 'pow')
res = pow(1, module.pow(), module.pow())
assert res == 123
with raises(TypeError):
# XXX: this is the part of the logic that is still wrong
pow(1, 2, module.pow())
|
