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from rpython.rtyper.lltypesystem import rffi
from pypy.interpreter.error import OperationError
from pypy.module.cpyext.test.test_api import BaseApiTest, raises_w
from pypy.module.cpyext.test.test_cpyext import AppTestCpythonExtensionBase
from pypy.module.cpyext.sequence import (
PySequence_Fast, PySequence_Contains, PySequence_Index,
PySequence_GetItem, PySequence_SetItem, PySequence_DelItem)
from pypy.module.cpyext.pyobject import get_w_obj_and_decref
from pypy.module.cpyext.state import State
import pytest
class TestSequence(BaseApiTest):
def test_check(self, space, api):
assert api.PySequence_Check(space.newlist([]))
assert not api.PySequence_Check(space.newdict())
def test_sequence_api(self, space, api):
w_tup = space.wrap((1, 2, 3, 4))
assert api.PySequence_Fast(w_tup, "message") is w_tup
w_l = space.wrap([1, 2, 3, 4])
assert api.PySequence_Fast(w_l, "message") is w_l
assert space.int_w(api.PySequence_Fast_GET_ITEM(w_l, 1)) == 2
assert api.PySequence_Fast_GET_SIZE(w_l) == 4
w_set = space.wrap(set((1, 2, 3, 4)))
w_seq = api.PySequence_Fast(w_set, "message")
assert space.type(w_seq) is space.w_list
assert space.len_w(w_seq) == 4
w_seq = api.PySequence_Tuple(w_set)
assert space.type(w_seq) is space.w_tuple
assert sorted(space.unwrap(w_seq)) == [1, 2, 3, 4]
w_seq = api.PySequence_List(w_set)
assert space.type(w_seq) is space.w_list
assert sorted(space.unwrap(w_seq)) == [1, 2, 3, 4]
def test_repeat(self, space, api):
def test(seq, count):
w_seq = space.wrap(seq)
w_repeated = api.PySequence_Repeat(w_seq, count)
assert space.eq_w(w_repeated, space.wrap(seq * count))
test((1, 2, 3, 4), 3)
test([1, 2, 3, 4], 3)
def test_concat(self, space, api):
w_t1 = space.wrap(range(4))
w_t2 = space.wrap(range(4, 8))
assert space.unwrap(api.PySequence_Concat(w_t1, w_t2)) == range(8)
def test_inplace_concat(self, space, api):
w_t1 = space.wrap(range(4))
w_t2 = space.wrap(range(4, 8))
w_t3 = api.PySequence_InPlaceConcat(w_t1, w_t2)
assert space.unwrap(w_t3) == range(8)
assert space.unwrap(w_t1) == range(8)
def test_inplace_repeat(self, space, api):
w_t1 = space.wrap(range(2))
w_t2 = api.PySequence_InPlaceRepeat(w_t1, 3)
assert space.unwrap(w_t2) == [0, 1, 0, 1, 0, 1]
def test_exception(self, space):
message = rffi.str2charp("message")
with pytest.raises(OperationError) as excinfo:
PySequence_Fast(space, space.wrap(3), message)
assert excinfo.value.match(space, space.w_TypeError)
assert space.str_w(excinfo.value.get_w_value(space)) == "message"
rffi.free_charp(message)
def test_get_slice(self, space, api):
w_t = space.wrap([1, 2, 3, 4, 5])
assert space.unwrap(api.PySequence_GetSlice(w_t, 2, 4)) == [3, 4]
assert space.unwrap(api.PySequence_GetSlice(w_t, 1, -1)) == [2, 3, 4]
assert api.PySequence_DelSlice(w_t, 1, 4) == 0
assert space.eq_w(w_t, space.wrap([1, 5]))
assert api.PySequence_SetSlice(w_t, 1, 1, space.wrap((3,))) == 0
assert space.eq_w(w_t, space.wrap([1, 3, 5]))
def test_get_slice_fast(self, space, api):
w_t = space.wrap([1, 2, 3, 4, 5])
api.PySequence_Fast(w_t, "foo") # converts
assert space.unwrap(api.PySequence_GetSlice(w_t, 2, 4)) == [3, 4]
assert space.unwrap(api.PySequence_GetSlice(w_t, 1, -1)) == [2, 3, 4]
assert api.PySequence_DelSlice(w_t, 1, 4) == 0
assert space.eq_w(w_t, space.wrap([1, 5]))
assert api.PySequence_SetSlice(w_t, 1, 1, space.wrap((3,))) == 0
assert space.eq_w(w_t, space.wrap([1, 3, 5]))
def test_iter(self, space, api):
w_t = space.wrap((1, 2))
w_iter = api.PySeqIter_New(w_t)
assert space.unwrap(space.next(w_iter)) == 1
assert space.unwrap(space.next(w_iter)) == 2
exc = raises(OperationError, space.next, w_iter)
assert exc.value.match(space, space.w_StopIteration)
def test_contains(self, space):
w_t = space.wrap((1, 'ha'))
assert PySequence_Contains(space, w_t, space.wrap(u'ha'))
assert not PySequence_Contains(space, w_t, space.wrap(2))
with raises_w(space, TypeError):
PySequence_Contains(space, space.w_None, space.wrap(2))
def test_setitem(self, space, api):
state = space.fromcache(State)
w_value = space.wrap(42)
l = api.PyList_New(1)
result = api.PySequence_SetItem(l, 0, w_value)
assert result != -1
assert space.eq_w(space.getitem(l, space.wrap(0)), w_value)
with raises_w(space, IndexError):
PySequence_SetItem(space, l, 3, w_value)
t = state.C.PyTuple_New(1)
api.PyTuple_SetItem(t, 0, l)
with raises_w(space, TypeError):
PySequence_SetItem(space, t, 0, w_value)
with raises_w(space, TypeError):
PySequence_SetItem(space, space.newdict(), 0, w_value)
def test_delitem(self, space, api):
w_l = space.wrap([1, 2, 3, 4])
result = api.PySequence_DelItem(w_l, 2)
assert result == 0
assert space.eq_w(w_l, space.wrap([1, 2, 4]))
with raises_w(space, IndexError):
PySequence_DelItem(space, w_l, 3)
def test_getitem(self, space, api):
thelist = [8, 7, 6, 5, 4, 3, 2, 1]
w_l = space.wrap(thelist)
py_result = api.PySequence_GetItem(w_l, 4)
result = get_w_obj_and_decref(space, py_result)
assert space.is_true(space.eq(result, space.wrap(4)))
py_result = api.PySequence_ITEM(w_l, 4)
result = get_w_obj_and_decref(space, py_result)
assert space.is_true(space.eq(result, space.wrap(4)))
with raises_w(space, IndexError):
PySequence_GetItem(space, w_l, 9000)
def test_index(self, space, api):
thelist = [9, 8, 7, 6, 5, 4, 3, 2, 1]
w_l = space.wrap(thelist)
w_tofind = space.wrap(5)
result = api.PySequence_Index(w_l, w_tofind)
assert result == thelist.index(5)
w_tofind = space.wrap(9001)
with raises_w(space, ValueError):
PySequence_Index(space, w_l, w_tofind)
w_gen = space.appexec([], """():
return (x ** 2 for x in range(40))""")
w_tofind = space.wrap(16)
result = api.PySequence_Index(w_gen, w_tofind)
assert result == 4
def test_sequence_getitem(self, space, api):
# PySequence_GetItem() is defined to return a new reference.
# When it happens to be called on a list or tuple, it returns
# a new reference that is also kept alive by the fact that it
# lives in the list/tuple. Some code like PyArg_ParseTuple()
# relies on this fact: it decrefs the result of
# PySequence_GetItem() but then expects it to stay alive. Meh.
# Here, we check that we try hard not to break this kind of
# code: if written naively, it could return a fresh PyIntObject,
# for example.
w1 = space.wrap((41, 42, 43))
p1 = api.PySequence_GetItem(w1, 1)
p2 = api.PySequence_GetItem(w1, 1)
assert p1 == p2
assert p1.c_ob_refcnt > 1
#
w1 = space.wrap([41, 42, 43])
p1 = api.PySequence_GetItem(w1, 1)
p2 = api.PySequence_GetItem(w1, 1)
assert p1 == p2
assert p1.c_ob_refcnt > 1
p1 = api.PySequence_GetItem(w1, -1)
p2 = api.PySequence_GetItem(w1, 2)
assert p1 == p2
class AppTestSetObject(AppTestCpythonExtensionBase):
def test_sequence_macro_cast(self):
module = self.import_extension('foo', [
("test_macro_cast", "METH_NOARGS",
"""
PyObject *o = PyList_New(0);
PyListObject* l;
PyList_Append(o, o);
l = (PyListObject*)o;
PySequence_Fast_GET_ITEM(o, 0);
PySequence_Fast_GET_ITEM(l, 0);
PySequence_Fast_GET_SIZE(o);
PySequence_Fast_GET_SIZE(l);
PySequence_ITEM(o, 0);
PySequence_ITEM(l, 0);
return o;
"""
)
])
class TestCPyListStrategy(BaseApiTest):
def test_getitem_setitem(self, space, api):
w_l = space.wrap([1, 2, 3, 4])
api.PySequence_Fast(w_l, "foo") # converts
assert space.int_w(space.len(w_l)) == 4
assert space.int_w(space.getitem(w_l, space.wrap(1))) == 2
assert space.int_w(space.getitem(w_l, space.wrap(0))) == 1
e = pytest.raises(OperationError, space.getitem, w_l, space.wrap(15))
assert "list index out of range" in e.value.errorstr(space)
assert space.int_w(space.getitem(w_l, space.wrap(-1))) == 4
space.setitem(w_l, space.wrap(1), space.wrap(13))
assert space.int_w(space.getitem(w_l, space.wrap(1))) == 13
def test_manipulations(self, space, api):
w = space.wrap
w_l = w([1, 2, 3, 4])
api.PySequence_Fast(w_l, "foo") # converts
space.call_method(w_l, 'insert', w(0), w(0))
assert space.int_w(space.len(w_l)) == 5
assert space.int_w(space.getitem(w_l, w(3))) == 3
api.PySequence_Fast(w_l, "foo") # converts
space.call_method(w_l, 'sort')
assert space.int_w(space.len(w_l)) == 5
assert space.int_w(space.getitem(w_l, w(0))) == 0
api.PySequence_Fast(w_l, "foo") # converts
w_t = space.wrap(space.fixedview(w_l))
assert space.int_w(space.len(w_t)) == 5
assert space.int_w(space.getitem(w_t, w(0))) == 0
w_l2 = space.wrap(space.listview(w_t))
assert space.int_w(space.len(w_l2)) == 5
assert space.int_w(space.getitem(w_l2, w(0))) == 0
api.PySequence_Fast(w_l, "foo") # converts
w_sum = space.add(w_l, w_l)
assert space.int_w(space.len(w_sum)) == 10
api.PySequence_Fast(w_l, "foo") # converts
w_prod = space.mul(w_l, space.wrap(2))
assert space.int_w(space.len(w_prod)) == 10
api.PySequence_Fast(w_l, "foo") # converts
w_l.inplace_mul(2)
assert space.int_w(space.len(w_l)) == 10
def test_getstorage_copy(self, space, api):
w = space.wrap
w_l = w([1, 2, 3, 4])
api.PySequence_Fast(w_l, "foo") # converts
w_l1 = w([])
space.setitem(w_l1, space.newslice(w(0), w(0), w(1)), w_l)
assert map(space.unwrap, space.unpackiterable(w_l1)) == [1, 2, 3, 4]
class AppTestSequenceObject(AppTestCpythonExtensionBase):
def test_fast(self):
module = self.import_extension('foo', [
("test_fast_sequence", "METH_VARARGS",
"""
int size, i;
PyTypeObject * common_type;
PyObject *foo, **objects;
PyObject * seq = PyTuple_GetItem(args, 0);
if (seq == NULL)
Py_RETURN_NONE;
foo = PySequence_Fast(seq, "some string");
objects = PySequence_Fast_ITEMS(foo);
if (objects == NULL)
return NULL;
size = PySequence_Fast_GET_SIZE(foo);
common_type = size > 0 ? Py_TYPE(objects[0]) : NULL;
for (i = 1; i < size; ++i) {
if (Py_TYPE(objects[i]) != common_type) {
common_type = NULL;
break;
}
}
Py_DECREF(foo);
if (common_type == NULL)
return PyBool_FromLong(0);
Py_DECREF(common_type);
return PyBool_FromLong(1);
""")])
s = [1, 2, 3, 4]
assert module.test_fast_sequence(s[0:-1])
assert module.test_fast_sequence(s[::-1])
s = (1, 2, 3, 4)
assert module.test_fast_sequence(s[0:-1])
assert module.test_fast_sequence(s[::-1])
s = "1234"
assert module.test_fast_sequence(s[0:-1])
assert module.test_fast_sequence(s[::-1])
def test_fast_keyerror(self):
module = self.import_extension('foo', [
("test_fast_sequence", "METH_VARARGS",
"""
PyObject *foo;
PyObject * seq = PyTuple_GetItem(args, 0);
if (seq == NULL)
Py_RETURN_NONE;
foo = PySequence_Fast(seq, "Could not convert object to sequence");
if (foo != NULL)
{
return foo;
}
if (PyErr_ExceptionMatches(PyExc_KeyError)) {
PyErr_Clear();
return PyBool_FromLong(1);
}
return NULL;
""")])
class Map(object):
def __len__(self):
return 1
def __getitem__(self, index):
raise KeyError()
assert module.test_fast_sequence(Map()) is True
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