Author: Ronan Lamy <ronan.l...@gmail.com>
Branch: indexing
Changeset: r78549:e9f26b0c2ae0
Date: 2015-07-13 23:59 +0200
http://bitbucket.org/pypy/pypy/changeset/e9f26b0c2ae0/
Log: kill RecordChunk
diff --git a/pypy/module/micronumpy/concrete.py
b/pypy/module/micronumpy/concrete.py
--- a/pypy/module/micronumpy/concrete.py
+++ b/pypy/module/micronumpy/concrete.py
@@ -11,7 +11,7 @@
from pypy.module.micronumpy.iterators import ArrayIter
from pypy.module.micronumpy.strides import (
Chunk, Chunks, NewAxisChunk, EllipsisChunk,
- RecordChunk, calc_strides, calc_new_strides, shape_agreement,
+ calc_strides, calc_new_strides, shape_agreement,
calculate_broadcast_strides, calc_backstrides, calc_start, is_c_contiguous,
is_f_contiguous)
from rpython.rlib.objectmodel import keepalive_until_here
diff --git a/pypy/module/micronumpy/ndarray.py
b/pypy/module/micronumpy/ndarray.py
--- a/pypy/module/micronumpy/ndarray.py
+++ b/pypy/module/micronumpy/ndarray.py
@@ -20,7 +20,7 @@
from pypy.module.micronumpy.flagsobj import W_FlagsObject
from pypy.module.micronumpy.strides import (
get_shape_from_iterable, shape_agreement, shape_agreement_multiple,
- is_c_contiguous, is_f_contiguous, RecordChunk)
+ is_c_contiguous, is_f_contiguous, calc_strides)
from pypy.module.micronumpy.casting import can_cast_array
@@ -257,8 +257,23 @@
dtype = self.get_dtype()
if field not in dtype.fields:
raise oefmt(space.w_ValueError, "field named %s not found", field)
- chunks = RecordChunk(field)
- return chunks.apply(space, self)
+ arr = self.implementation
+ ofs, subdtype = arr.dtype.fields[field]
+ # ofs only changes start
+ # create a view of the original array by extending
+ # the shape, strides, backstrides of the array
+ strides, backstrides = calc_strides(subdtype.shape,
+ subdtype.subdtype, arr.order)
+ final_shape = arr.shape + subdtype.shape
+ final_strides = arr.get_strides() + strides
+ final_backstrides = arr.get_backstrides() + backstrides
+ final_dtype = subdtype
+ if subdtype.subdtype:
+ final_dtype = subdtype.subdtype
+ return W_NDimArray.new_slice(space, arr.start + ofs, final_strides,
+ final_backstrides,
+ final_shape, arr, self, final_dtype)
+
def descr_delitem(self, space, w_idx):
raise OperationError(space.w_ValueError, space.wrap(
@@ -1317,7 +1332,6 @@
def descr_new_array(space, w_subtype, w_shape, w_dtype=None, w_buffer=None,
offset=0, w_strides=None, w_order=None):
from pypy.module.micronumpy.concrete import ConcreteArray
- from pypy.module.micronumpy.strides import calc_strides
dtype = space.interp_w(descriptor.W_Dtype, space.call_function(
space.gettypefor(descriptor.W_Dtype), w_dtype))
shape = shape_converter(space, w_shape, dtype)
diff --git a/pypy/module/micronumpy/strides.py
b/pypy/module/micronumpy/strides.py
--- a/pypy/module/micronumpy/strides.py
+++ b/pypy/module/micronumpy/strides.py
@@ -10,29 +10,6 @@
pass
-class RecordChunk(BaseChunk):
- def __init__(self, name):
- self.name = name
-
- def apply(self, space, orig_arr):
- arr = orig_arr.implementation
- ofs, subdtype = arr.dtype.fields[self.name]
- # ofs only changes start
- # create a view of the original array by extending
- # the shape, strides, backstrides of the array
- strides, backstrides = calc_strides(subdtype.shape,
- subdtype.subdtype, arr.order)
- final_shape = arr.shape + subdtype.shape
- final_strides = arr.get_strides() + strides
- final_backstrides = arr.get_backstrides() + backstrides
- final_dtype = subdtype
- if subdtype.subdtype:
- final_dtype = subdtype.subdtype
- return W_NDimArray.new_slice(space, arr.start + ofs, final_strides,
- final_backstrides,
- final_shape, arr, orig_arr, final_dtype)
-
-
class Chunks(BaseChunk):
def __init__(self, l):
self.l = l
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