python-cnorxz/cnorxz/base/base.pyx
Christian Zimmermann 50b09fa9c2 indices + arrays
2023-05-08 22:28:31 +02:00

154 lines
4 KiB
Cython

#cython: language_level=3
#cython: c_string_type=str
#cython: c_string_encoding=ascii
#cython: boundscheck=False
#cython: wrapparound=False
#cython: cdivision=True
#cython: embedsignature=True
from libcpp.memory cimport shared_ptr, make_shared, dynamic_pointer_cast
from libcpp.string cimport string
from libcpp cimport bool
from range cimport cpp_RangeBase
from range_factory cimport cpp_RangeFactoryBase, cpp_CRangeFactory
from array cimport cpp_CArrayBase, cpp_MArray
from index cimport cpp_DIndex
## ============
## Range
## ============
cdef class Range:
cdef shared_ptr[cpp_RangeBase] cpp_range
def size(self):
return self.cpp_range.get().size()
def dim(self):
return self.cpp_range.get().dim()
def sub(self):
return getSubRange(self)
def index(self):
return getRangeIndex(self)
cdef class RangeFactory:
cdef shared_ptr[cpp_RangeFactoryBase] cpp_rfactory
def __cinit__(self,rangetype,**kvargs):
cdef size_t size = 0
if rangetype == 'C':
size = kvargs['size']
self.cpp_rfactory = dynamic_pointer_cast[cpp_RangeFactoryBase,cpp_CRangeFactory](
make_shared[cpp_CRangeFactory](size))
else:
raise Exception('unknown range type:'+ rangetype)
def create(self):
r = Range()
r.cpp_range = self.cpp_rfactory.get().create()
return r
## ===========
## Index
## ===========
cdef class Index:
def lex(self):
return 0
def dim(self):
return 0
cdef class DIndex (Index):
cdef shared_ptr[cpp_DIndex] cpp_index
cdef bool itercall
def __cinit__(self,_range,_lexpos=0):
cdef Range r = _range
cdef size_t l = _lexpos
self.cpp_index = make_shared[cpp_DIndex] (r.cpp_range,l)
self.itercall = False
def __iter__(self):
self.cpp_index.get().setlpos(0)
self.itercall = True # otherwise first (i.e. zeroth) will be excluded
return self
def __next__(self):
cdef DIndex ret = self
if self.itercall:
ret.itercall = False
return ret
if self.lex() < self.cpp_index.get().range().get().size()-1:
ret.cpp_index = make_shared[cpp_DIndex] (self.cpp_index.get().plus(1))
return ret
else:
raise StopIteration
def lex(self):
return self.cpp_index.get().lex()
def dim(self):
return self.cpp_index.get().dim()
def stringMeta(self):
return self.cpp_index.get().stringMeta()
def getRangeIndex(_range):
return DIndex(_range)
## ===========
## Array
## ===========
cdef class Array:
def size(self):
return 0
def range(self):
cdef Range r = Range()
return r
cdef class Array_Double (Array):
cdef shared_ptr[cpp_CArrayBase[double]] cpp_array
def __cinit__(self,_range):
cdef Range r = _range
self.cpp_array = dynamic_pointer_cast[cpp_CArrayBase[double],cpp_MArray[double]] (make_shared[cpp_MArray[double]] (r.cpp_range) )
def size(self):
return self.cpp_array.get().size()
def range(self):
cdef Range r = Range()
r.cpp_range = self.cpp_array.get().range()
return r
cdef class Array_Range (Array):
cdef shared_ptr[cpp_CArrayBase[shared_ptr[cpp_RangeBase]]] cpp_array
def __cinit__(self,_range):
cdef Range r = _range
self.cpp_array = dynamic_pointer_cast[cpp_CArrayBase[shared_ptr[cpp_RangeBase]],cpp_MArray[shared_ptr[cpp_RangeBase]]] (make_shared[cpp_MArray[shared_ptr[cpp_RangeBase]]] (r.cpp_range) )
def size(self):
return self.cpp_array.get().size()
def range(self):
cdef Range r = Range()
r.cpp_range = self.cpp_array.get().range()
return r
def getSubRange(_range):
cdef Range r = _range
cdef Array_Range a = Array_Range()
a.cpp_array = dynamic_pointer_cast[cpp_CArrayBase[shared_ptr[cpp_RangeBase]],cpp_MArray[shared_ptr[cpp_RangeBase]]] (make_shared[cpp_MArray[shared_ptr[cpp_RangeBase]]] (r.cpp_range.get().sub()) )
return a