python/src/pywy/platforms/python/channels.py

#
#  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,
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#  See the License for the specific language governing permissions and
#  limitations under the License.
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from typing import Iterable
from pywy.core import (Channel, ChannelDescriptor)


class PyIteratorChannel(Channel):

    iterable: Iterable

    def __init__(self):
        Channel.__init__(self)

    def provide_iterable(self) -> Iterable:
        return self.iterable

    def accept_iterable(self, iterable: Iterable) -> 'PyIteratorChannel':
        self.iterable = iterable
        return self


PY_ITERATOR_CHANNEL_DESCRIPTOR = ChannelDescriptor(type(PyIteratorChannel()), False, False)