firestar5683
49 lines
1.4 KiB
Python
49 lines
1.4 KiB
Python
from typing import Callable, Optional, TypeVar
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from reactivex import Observable, abc
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from reactivex.notification import Notification, OnCompleted, OnError, OnNext
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_T = TypeVar("_T")
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def materialize() -> Callable[[Observable[_T]], Observable[Notification[_T]]]:
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def materialize(source: Observable[_T]) -> Observable[Notification[_T]]:
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"""Partially applied materialize operator.
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Materializes the implicit notifications of an observable
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sequence as explicit notification values.
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Args:
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source: Source observable to materialize.
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Returns:
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An observable sequence containing the materialized
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notification values from the source sequence.
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"""
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def subscribe(
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observer: abc.ObserverBase[Notification[_T]],
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scheduler: Optional[abc.SchedulerBase] = None,
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):
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def on_next(value: _T) -> None:
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observer.on_next(OnNext(value))
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def on_error(error: Exception) -> None:
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observer.on_next(OnError(error))
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observer.on_completed()
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def on_completed() -> None:
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observer.on_next(OnCompleted())
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observer.on_completed()
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return source.subscribe(
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on_next, on_error, on_completed, scheduler=scheduler
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)
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return Observable(subscribe)
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return materialize
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__all__ = ["materialize"]
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