def test_list_comparisons():
buf1 = (
'\x01\x00\x00\x00\x00\x00\x00\x00' # 1
'\x02\x00\x00\x00\x00\x00\x00\x00' # 2
'\x03\x00\x00\x00\x00\x00\x00\x00' # 3
'\x04\x00\x00\x00\x00\x00\x00\x00') # 4
buf2 = 'garbage0' + buf1
#
lst1 = List.from_buffer(buf1, 0, ptr.LIST_SIZE_64, 4,
PrimitiveItemType(Types.int64))
lst2 = List.from_buffer(buf2, 8, ptr.LIST_SIZE_64, 4,
PrimitiveItemType(Types.int64))
lst3 = List.from_buffer(buf1, 0, ptr.LIST_SIZE_64, 3,
PrimitiveItemType(Types.int64))
#
assert lst1 == lst2
assert not lst1 != lst2
#
assert not lst1 == lst3 # different item_count
assert lst1 != lst3
#
py.test.raises(TypeError, "lst1 < lst2")
py.test.raises(TypeError, "lst1 <= lst2")
py.test.raises(TypeError, "lst1 > lst2")
py.test.raises(TypeError, "lst1 >= lst2")
def _read_list(self, offset, item_type, default_=None):
p = self._read_fast_ptr(offset)
if ptr.kind(p) == ptr.FAR:
offset, p = self._read_far_ptr(offset)
else:
offset += self._ptrs_offset
if p == 0:
return default_
assert ptr.kind(p) == ptr.LIST
list_offset = ptr.deref(p, offset)
# in theory we could simply use List.from_buffer; however, Cython is
# not able to compile classmethods, so we create it manually
obj = List.__new__(List)
obj._init_from_buffer(self._seg, list_offset, ptr.list_size_tag(p),
ptr.list_item_count(p), item_type)
return obj
def get_handlers(self):
res = self.handlers
if res is None:
return _List.from_buffer(b'', 0, 0, 0, _TextItemType(_Types.text))
return res