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# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
# distutils: language = c++
from libc.stdint cimport *
from libcpp cimport bool as c_bool, nullptr
from libcpp.functional cimport function
from libcpp.memory cimport shared_ptr, unique_ptr, make_shared
from libcpp.string cimport string as c_string
from libcpp.utility cimport pair
from libcpp.vector cimport vector
from libcpp.unordered_map cimport unordered_map
from libcpp.unordered_set cimport unordered_set
from cpython cimport PyObject
from cpython.datetime cimport PyDateTime_DateTime
cimport cpython
cdef extern from * namespace "std" nogil:
cdef shared_ptr[T] static_pointer_cast[T, U](shared_ptr[U])
# vendored from the cymove project https://github.com/ozars/cymove
cdef extern from * namespace "cymove" nogil:
"""
#include <type_traits>
#include <utility>
namespace cymove {
template <typename T>
inline typename std::remove_reference<T>::type&& cymove(T& t) {
return std::move(t);
}
template <typename T>
inline typename std::remove_reference<T>::type&& cymove(T&& t) {
return std::move(t);
}
} // namespace cymove
"""
cdef T move" cymove::cymove"[T](T)
cdef extern from * namespace "arrow::py" nogil:
"""
#include <memory>
#include <utility>
namespace arrow {
namespace py {
template <typename T>
std::shared_ptr<T> to_shared(std::unique_ptr<T>& t) {
return std::move(t);
}
template <typename T>
std::shared_ptr<T> to_shared(std::unique_ptr<T>&& t) {
return std::move(t);
}
} // namespace py
} // namespace arrow
"""
cdef shared_ptr[T] to_shared" arrow::py::to_shared"[T](unique_ptr[T])
cdef extern from "arrow/python/platform.h":
pass
cdef extern from "<Python.h>":
void Py_XDECREF(PyObject* o)
Py_ssize_t Py_REFCNT(PyObject* o)
cdef extern from "numpy/halffloat.h":
ctypedef uint16_t npy_half
cdef extern from "arrow/api.h" namespace "arrow" nogil:
# We can later add more of the common status factory methods as needed
cdef CStatus CStatus_OK "arrow::Status::OK"()
cdef CStatus CStatus_Invalid "arrow::Status::Invalid"()
cdef CStatus CStatus_NotImplemented \
"arrow::Status::NotImplemented"(const c_string& msg)
cdef CStatus CStatus_UnknownError \
"arrow::Status::UnknownError"(const c_string& msg)
cdef cppclass CStatus "arrow::Status":
CStatus()
c_string ToString()
c_string message()
shared_ptr[CStatusDetail] detail()
c_bool ok()
c_bool IsIOError()
c_bool IsOutOfMemory()
c_bool IsInvalid()
c_bool IsKeyError()
c_bool IsNotImplemented()
c_bool IsTypeError()
c_bool IsCapacityError()
c_bool IsIndexError()
c_bool IsSerializationError()
c_bool IsCancelled()
cdef cppclass CStatusDetail "arrow::StatusDetail":
c_string ToString()
cdef extern from "arrow/result.h" namespace "arrow" nogil:
cdef cppclass CResult "arrow::Result"[T]:
CResult()
CResult(CStatus)
CResult(T)
c_bool ok()
CStatus status()
T operator*()
cdef extern from "arrow/python/common.h" namespace "arrow::py" nogil:
T GetResultValue[T](CResult[T]) except *
cdef function[F] BindFunction[F](void* unbound, object bound, ...)
cdef inline object PyObject_to_object(PyObject* o):
# Cast to "object" increments reference count
cdef object result = <object> o
cpython.Py_DECREF(result)
return result
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