def __init__(self, dmm, fe_type):
array_type = fe_type.array_type
dtype = array_type.dtype
ndim = array_type.ndim
members = [('array', array_type),
('pointers', types.EphemeralArray(types.CPointer(dtype), ndim)),
('indices', types.EphemeralArray(types.intp, ndim)),
('exhausted', types.EphemeralPointer(types.boolean)),
]
super(FlatIter, self).__init__(dmm, fe_type, members)
def __init__(self, dmm, fe_type):
array_types = fe_type.arrays
ndim = fe_type.ndim
shape_len = ndim if fe_type.need_shaped_indexing else 1
members = [
('exhausted', types.EphemeralPointer(types.boolean)),
('arrays', types.Tuple(array_types)),
# The iterator's main shape and indices
('shape', types.UniTuple(types.intp, shape_len)),
('indices', types.EphemeralArray(types.intp, shape_len)),
]
# Indexing state for the various sub-iterators
# XXX use a tuple instead?
for i, sub in enumerate(fe_type.indexers):
kind, start_dim, end_dim, _ = sub
member_name = 'index%d' % i
if kind == 'flat':
# A single index into the flattened array
members.append(
(member_name, types.EphemeralPointer(types.intp)))
elif kind in ('scalar', 'indexed', '0d'):
# Nothing required
pass
else:
assert 0
# Slots holding values of the scalar args
# XXX use a tuple instead?
for i, ty in enumerate(fe_type.arrays):
if not isinstance(ty, types.Array):
member_name = 'scalar%d' % i
members.append((member_name, types.EphemeralPointer(ty)))
super(NdIter, self).__init__(dmm, fe_type, members)
def __init__(self, dmm, fe_type):
ndim = fe_type.ndim
members = [('shape', types.UniTuple(types.intp, ndim)),
('indices', types.EphemeralArray(types.intp, ndim)),
('exhausted', types.EphemeralPointer(types.boolean)),
]
super(NdIndexModel, self).__init__(dmm, fe_type, members)
def __init__(self, dmm, fe_type, need_indices):
assert fe_type.array_type.layout == 'C'
array_type = fe_type.array_type
dtype = array_type.dtype
ndim = array_type.ndim
members = [('array', array_type),
('stride', types.intp),
('index', types.EphemeralPointer(types.intp)),
]
if need_indices:
# For ndenumerate()
members.append(('indices', types.EphemeralArray(types.intp, ndim)))
super(CContiguousFlatIter, self).__init__(dmm, fe_type, members)
