mirror of
https://github.com/aykhans/AzSuicideDataVisualization.git
synced 2025-04-22 10:28:02 +00:00
69 lines
2.0 KiB
Cython
69 lines
2.0 KiB
Cython
# 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++
|
|
# cython: language_level = 3
|
|
|
|
import pyarrow as pa
|
|
from pyarrow.lib cimport *
|
|
from pyarrow.lib import frombytes, tobytes
|
|
|
|
# basic test to roundtrip through a BoundFunction
|
|
|
|
ctypedef CStatus visit_string_cb(const c_string&)
|
|
|
|
cdef extern from * namespace "arrow::py" nogil:
|
|
"""
|
|
#include <functional>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include "arrow/status.h"
|
|
|
|
namespace arrow {
|
|
namespace py {
|
|
|
|
Status VisitStrings(const std::vector<std::string>& strs,
|
|
std::function<Status(const std::string&)> cb) {
|
|
for (const std::string& str : strs) {
|
|
RETURN_NOT_OK(cb(str));
|
|
}
|
|
return Status::OK();
|
|
}
|
|
|
|
} // namespace py
|
|
} // namespace arrow
|
|
"""
|
|
cdef CStatus CVisitStrings" arrow::py::VisitStrings"(
|
|
vector[c_string], function[visit_string_cb])
|
|
|
|
|
|
cdef void _visit_strings_impl(py_cb, const c_string& s) except *:
|
|
py_cb(frombytes(s))
|
|
|
|
|
|
def _visit_strings(strings, cb):
|
|
cdef:
|
|
function[visit_string_cb] c_cb
|
|
vector[c_string] c_strings
|
|
|
|
c_cb = BindFunction[visit_string_cb](&_visit_strings_impl, cb)
|
|
for s in strings:
|
|
c_strings.push_back(tobytes(s))
|
|
|
|
check_status(CVisitStrings(c_strings, c_cb))
|