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Kirill Smelkov
cython
Commits
2e884463
Commit
2e884463
authored
Jan 19, 2013
by
Stefan Behnel
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undo code removal - not entirely clear what to make of it
parent
2257147a
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Cython/Shadow.py
Cython/Shadow.py
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Cython/Shadow.py
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2e884463
# cython.* namespace for pure mode.
__version__
=
"0.18b1"
# Shamelessly copied from Cython/minivect/minitypes.py
class
_ArrayType
(
object
):
is_array
=
True
subtypes
=
[
'dtype'
]
def
__init__
(
self
,
dtype
,
ndim
,
is_c_contig
=
False
,
is_f_contig
=
False
,
inner_contig
=
False
,
broadcasting
=
None
):
self
.
dtype
=
dtype
self
.
ndim
=
ndim
self
.
is_c_contig
=
is_c_contig
self
.
is_f_contig
=
is_f_contig
self
.
inner_contig
=
inner_contig
or
is_c_contig
or
is_f_contig
self
.
broadcasting
=
broadcasting
def
__repr__
(
self
):
axes
=
[
":"
]
*
self
.
ndim
if
self
.
is_c_contig
:
axes
[
-
1
]
=
"::1"
elif
self
.
is_f_contig
:
axes
[
0
]
=
"::1"
return
"%s[%s]"
%
(
self
.
dtype
,
", "
.
join
(
axes
))
def
index_type
(
base_type
,
item
):
"""
Support array type creation by slicing, e.g. double[:, :] specifies
a 2D strided array of doubles. The syntax is the same as for
Cython memoryviews.
"""
assert
isinstance
(
item
,
(
tuple
,
slice
))
def
verify_slice
(
s
):
if
s
.
start
or
s
.
stop
or
s
.
step
not
in
(
None
,
1
):
raise
minierror
.
InvalidTypeSpecification
(
"Only a step of 1 may be provided to indicate C or "
"Fortran contiguity"
)
if
isinstance
(
item
,
tuple
):
step_idx
=
None
for
idx
,
s
in
enumerate
(
item
):
verify_slice
(
s
)
if
s
.
step
and
(
step_idx
or
idx
not
in
(
0
,
len
(
item
)
-
1
)):
raise
minierror
.
InvalidTypeSpecification
(
"Step may only be provided once, and only in the "
"first or last dimension."
)
if
s
.
step
==
1
:
step_idx
=
idx
return
_ArrayType
(
base_type
,
len
(
item
),
is_c_contig
=
step_idx
==
len
(
item
)
-
1
,
is_f_contig
=
step_idx
==
0
)
else
:
verify_slice
(
item
)
return
_ArrayType
(
base_type
,
1
,
is_c_contig
=
bool
(
item
.
step
))
# END shameless copy
compiled
=
False
_Unspecified
=
object
()
...
...
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